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  • Artikel  (557)
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  • 1
    Digitale Medien
    Digitale Medien
    Neutralizing antibody provided protection against enterovirus type 71 lethal challenge in neonatal mice (2000)
    Springer
    Journal of biomedical science 7 (2000), S. 523-528 
    Details
    ISSN: 1423-0127
    Schlagwort(e): Enterovirus type 71 ; Experimental infection ; Mice ; Neutralizing antibody ; Vaccine
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract Experimental infection with enterovirus type 71 (EV71) induced death in neonatal mice in an age- and dose-dependent manner. The mortality rate was 100% following intraperitoneal inoculation 1-day-old ICR mice and this gradually decreased as the age at the time of inoculation increased (60% in 3-day-old mice and no deaths occurred in mice older than 6 days of age). A lethal dose greater than 108 PFU was necessary. Lethargy, failure to gain weight, rear limb tremors and paralysis were observed in the infected mice before death. EV71 was isolated from various tissues of the dead mice. Using a reverse transcription polymerase chain reaction technique with a specific primer pair, a 332-bp product was detected in the tissues that produced a culture positive for EV71. Protection against EV71 challenge in neonatal mice was demonstrated following passive transfer of serum from actively immunized adult mice 1 day after inoculation with the virus. Pups from hyperimmune dams were resistant to EV71 challenge. Additionally, maternal immunization with a formalin-inactivated whole-virus vaccine prolonged the survival of pups after EV71 lethal challenge.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02253368
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  • 2
    Digitale Medien
    Digitale Medien
    Direct and maternal genetic effects on body weight maturing patterns in mice (1978)
    Springer
    Theoretical and applied genetics 51 (1978), S. 249-260 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Mice ; Maternal Effects ; Body Weight ; Maturity ; Sex-linkage
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Direct and maternal genetic effects were evaluated for maturing patterns of body weight in mice using a crossfostering design. Crossfostering was performed in one group using dams from populations selected for rapid growth rate (M16 and H6) and their reciprocal F1. crosses. A second crossfostering group consisted of dams from the respective control populations (ICR and C2) and their reciprocal F1. 's. Population differences were partitioned into direct and maternal effects due to genetic origin, correlated selection responses, heterosis and cytoplasmic or sex-linked effects. Degree of maturity was calculated at birth, 12, 21, 31 and 42 days of age by dividing body weight at each age by 63-day weight. Absolute and relative maturing rates were calculated in adjacent age intervals between birth and 63 days. Genetic origin effects (ICR vs. C2; M16 vs. H6) were significant for many maturity traits, with average direct being more important than average maternal genetic effects. In general, correlated responses to selection for maturity traits were larger in the M16 population (M16 vs. ICR) than in the H6 population (H6 vs. C2) and correlated responses in average direct effects were larger than average maternal effects. Positive correlated responses in average direct effects were found for relative maturing rates at all ages and for absolute maturing rates from 31 to 63 days. Apparent correlated responses in degree of maturity were negative for M16 and H6. However, further analysis suggested that the correlated response for degree of maturity in H6 may be positive at later ages and negative at earlier ages. Direct and maternal heterosis for degree of maturity was positive in the selected and control crosses. Absolute and relative maturing rates showed positive heterosis initially, followed by negative heterosis. Reciprocal differences due to the cytoplasm or sex-linkage were not important for patterns of maturity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00273772
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  • 3
    Digitale Medien
    Digitale Medien
    Feed efficiency and body composition of selected and unselected mice (1977)
    Springer
    Theoretical and applied genetics 50 (1977), S. 179-184 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Mice ; Feed Efficiency ; Body Composition ; Protein Content ; Selection
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary An examination was carried out of the feed intake, feed efficiency and body composition of selected and unselected mice. It was demonstrated that selected mice utilised food more economically, and, in total, produced more protein than the control animals. However, selection had a negative influence on the percentage content of protein and ash. Also, selection caused greater adiposity of selected females and a greater water content in the bodies of selected males (in %).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00277739
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  • 4
    Digitale Medien
    Digitale Medien
    The relative importance of prenatal and postnatal maternal influences on growth in mice (1977)
    Springer
    Theoretical and applied genetics 51 (1977), S. 119-125 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Mice ; Cross-nursing Technique ; Body Weight ; Prenatal and Postnatal Maternal Influences
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The cross-nursing technique was used to assess the relative importance of prenatal and postnatal maternal influences on growth in mice from an unselected population originated from a cross of four highly inbred strains. Body weights were studied at birth, 7-, 14-, 21- and 42-days, in addition to the weight gains between these ages and tail length at 21 and 42 days of age. At littering, each dam in each nursing set retained two of her own offspring and two were transfereed to each of the other dams in the set, so that each nursed litter contained six young representing three mothers. Prenatal influences accounted for 37, 15, 10, 11 and 13 % of the total variation in the respective body weights, while postnatal influences accounted for 0, 64, 65, 49 and 14% at the respective ages. In the case of weight gains, prenatal influences were responsible for 16, 4, 6 and 30%, while postnatal influences were responsible for 66, 66, 31 and 7% of the total variation in gain during the respective four periods examined. Apparently the individual weight gain from 7 to 14 days was a better measure of the lactational performance of the dam than individual 14-day weight. For tail length, prenatal influences accounted for 6 % and 4 % of the total variation in tail length at 21 and 42 days, respectively, while postnatal influences accounted for 60 % and 24 % at the respective ages. Generally, there was no indication of an important interaction between the nurse and the nursed young at any stage studied.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00273823
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  • 5
    Digitale Medien
    Digitale Medien
    Correlated responses of growth traits to selection for high and low plasma alkaline phosphatase in mice (1982)
    Springer
    Theoretical and applied genetics 62 (1982), S. 281-287 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Growth ; Alkaline phosphatase ; Selection ; Correlated responses ; Mice
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The effectiveness of two way selection for plasma alkaline phosphatase (ALP) was investigated in order to determine its influences on growth traits through thirteen generations. The responses of the two lines selected for high (HP) and low (LP) ALP at 45 days of age were compared to that of the mice selected for large (L) and small (SM) body size. The selection responses of plasma ALP were very effective for both HP and LP lines, with average responses per generation calculated from linear regressions of 0.227±0.037 and −0.088±0.022 respectively. The final levels of ALP in HP and LP were 5.54±0.71 and 1.27±0.20 in the thirtheenth generation, while the SM, L and base population had levels of 3.49±0.08, 0.86±0.55 and 2.77±0.56 respectively. The body weight at 45 days of age in LP (31.4±1.4 g) as a correlated response was significantly higher than HP (23.4±1.8 g) at generation 10. The correlated response of milk yield, measured by weight gain up to 12 days of age, was significantly greater in the LP line than in HP, but the correlated response of gains after weaning was not so different as the response of milk yield. The response of litter size and weight in LP showed significant higher levels than that of HP, but pups' birth weight did not differ between LP and HP. It is suggested that the correlated response of milk yield contributed more to the divergence of body size between HP and LP than the gain after weaning. Realized heritabilities of ALP were 0.335±0.059 (HP) and 0.279±0.051 (LP). Realized genetic correlations between ALP and 45 days' body weight were −0.27±0.13 (HP with SM) and −0.52±0.19 (LP with L). Realized genetic correlations between ALP and milk yield were −0.95±0.03 (HP) and −0.37±0.29 (LP). Correlations between ALP and postweaning gains were fairly low.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00276252
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  • 6
    Digitale Medien
    Digitale Medien
    Direct and correlated responses to selection for post-weaning weight gain on ad libitum or restricted feeding in mice (1982)
    Springer
    Theoretical and applied genetics 63 (1982), S. 145-150 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Mice ; Selection ; Growth rate ; ad libitum feeding ; Restricted feeding
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Selection for post-weaning weight gain in mice from 21 to 42 days, on either a full or restricted feeding level during this period was carried out for seven generations. Control lines were maintained for each feeding level. The rate of selection response was higher on full feeding due to a higher heritability and a larger phenotypic variance. Realised heritabilities of 0.29±0.05 and 0.19±0.04 for selection on full and restricted feeding respectively, were in close agreement with base population estimates. Selection on full feeding led to positive correlated responses in 21 day weight, 42 day weight, food intake and efficiency between 21 and 42 days, and 42 day tail length, but with little change in reproductive performance. Correlated responses to selection on restricted feeding were reduced 21 day weight, but an increase in 42 day weight and increased efficiency from 21 to 42 days. However, overall reproductive performance fell.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00303697
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  • 7
    Digitale Medien
    Digitale Medien
    Co-housing in a stable hierarchical group is not aversive for dominant and subordinate individuals (2000)
    Springer
    Neuroscience and behavioral physiology 30 (2000), S. 195-200 
    Details
    ISSN: 1573-899X
    Schlagwort(e): Mice ; dominance ; subordinacy ; stress ; aggression ; locomotor activity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract The behavior of individaals and their responses to external stimuli are controlled by the microsocial environment, which for most mammals is associated with dominant-subordinate relationships. Physiological and behavioral differences between dominant and subordinate individuals may be ‘primary’ (genetically determined) or ‘secondary’ (due to position in the group's hierarchical structure). A series of experiments was conducted to investigate the physiological (pain response threshold), immunological (thymus, spleen weights, primary immune response), and behavioral (motor activity, behavior in a shuttle box test) characteristics of dominant and subordinate individuals in groups of three laboratory mice formed on the basis of linear hierarchy. Assessment of the effects of group conditions was made using a conditioned reflex location preference test. The results showed: 1) there are no statistically significant differences in physiological and behavioral (except for motor activity) parameters between dominant and subordinate mice; 2) co-housing of dominant and subordinate individuals in groups with stable hierarchical relationships was not aversive for them.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02463158
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  • 8
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    Cancer. BRCA2 enters the fray (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-09-14
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, John H -- Elledge, Stephen J -- New York, N.Y. -- Science. 2002 Sep 13;297(5588):1822-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12228708" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; BRCA1 Protein/metabolism ; BRCA2 Protein/*chemistry/*metabolism ; Binding Sites ; Breast Neoplasms/genetics ; Crystallography, X-Ray ; DNA/*metabolism ; DNA Damage ; *DNA Repair ; DNA, Single-Stranded/metabolism ; DNA-Binding Proteins/metabolism ; Female ; Genes, BRCA1 ; Genes, BRCA2 ; Genetic Predisposition to Disease ; Humans ; Mice ; Ovarian Neoplasms/genetics ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rad51 Recombinase ; Rats ; Recombination, Genetic ; Replication Protein A
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 9
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    Direct recognition of cytomegalovirus by activating and inhibitory NK cell receptors (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-04-16
    Beschreibung: Natural killer (NK) cells express inhibitory receptors for major histocompatibility complex (MHC) class I antigens, preventing attack against healthy cells. Mouse cytomegalovirus (MCMV) encodes an MHC-like protein (m157) that binds to an inhibitory NK cell receptor in certain MCMV-susceptible mice. In MCMV-resistant mice, this viral protein engages a related activating receptor (Ly49H) and confers host protection. These activating and inhibitory receptors are highly homologous, suggesting the possibility that one evolved from the other in response to selective pressure imposed by the pathogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arase, Hisashi -- Mocarski, Edward S -- Campbell, Ann E -- Hill, Ann B -- Lanier, Lewis L -- AI30363/AI/NIAID NIH HHS/ -- CA89294/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 May 17;296(5571):1323-6. Epub 2002 Apr 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology and the Cancer Research Institute, University of California San Francisco, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11950999" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; Animals ; Antigens, Ly/chemistry/genetics/*immunology/metabolism ; Cell Line ; Coculture Techniques ; Disease Susceptibility ; Evolution, Molecular ; Herpesviridae Infections/*immunology ; Histocompatibility Antigens Class I/immunology ; Hybridomas ; Immunity, Innate ; Interferon-gamma/biosynthesis ; Killer Cells, Natural/*immunology ; Lectins, C-Type ; Ligands ; Lymphocyte Activation ; Membrane Glycoproteins/chemistry/genetics/*immunology/metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Muromegalovirus/genetics/*immunology/metabolism ; NK Cell Lectin-Like Receptor Subfamily A ; Protein Binding ; Receptors, Immunologic/chemistry/genetics/*immunology/metabolism ; Receptors, NK Cell Lectin-Like ; Recombinant Fusion Proteins/metabolism ; Transfection ; Viral Proteins/chemistry/genetics/*immunology/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 10
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    Genomic instability in mice lacking histone H2AX (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-04-06
    Beschreibung: Higher order chromatin structure presents a barrier to the recognition and repair of DNA damage. Double-strand breaks (DSBs) induce histone H2AX phosphorylation, which is associated with the recruitment of repair factors to damaged DNA. To help clarify the physiological role of H2AX, we targeted H2AX in mice. Although H2AX is not essential for irradiation-induced cell-cycle checkpoints, H2AX-/- mice were radiation sensitive, growth retarded, and immune deficient, and mutant males were infertile. These pleiotropic phenotypes were associated with chromosomal instability, repair defects, and impaired recruitment of Nbs1, 53bp1, and Brca1, but not Rad51, to irradiation-induced foci. Thus, H2AX is critical for facilitating the assembly of specific DNA-repair complexes on damaged DNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721576/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721576/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Celeste, Arkady -- Petersen, Simone -- Romanienko, Peter J -- Fernandez-Capetillo, Oscar -- Chen, Hua Tang -- Sedelnikova, Olga A -- Reina-San-Martin, Bernardo -- Coppola, Vincenzo -- Meffre, Eric -- Difilippantonio, Michael J -- Redon, Christophe -- Pilch, Duane R -- Olaru, Alexandru -- Eckhaus, Michael -- Camerini-Otero, R Daniel -- Tessarollo, Lino -- Livak, Ferenc -- Manova, Katia -- Bonner, William M -- Nussenzweig, Michel C -- Nussenzweig, Andre -- Z99 CA999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2002 May 3;296(5569):922-7. Epub 2002 Apr 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Immunology Branch, National Cancer Institute, NIH, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11934988" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology/physiology ; Base Sequence ; Cell Aging ; Cell Cycle ; Cells, Cultured ; *Chromosome Aberrations ; DNA Damage ; *DNA Repair ; Female ; Gene Targeting ; Histones/chemistry/*genetics/*physiology ; Immunoglobulin Class Switching ; Infertility, Male/genetics/physiopathology ; Lymphocyte Count ; Male ; Meiosis ; Mice ; Mice, Knockout ; Molecular Sequence Data ; Mutation ; Phosphorylation ; *Recombination, Genetic ; Spermatocytes/physiology ; T-Lymphocytes/immunology/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 11
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    Chemical synthesis of poliovirus cDNA: generation of infectious virus in the absence of natural template (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-07-13
    Beschreibung: Full-length poliovirus complementary DNA (cDNA) was synthesized by assembling oligonucleotides of plus and minus strand polarity. The synthetic poliovirus cDNA was transcribed by RNA polymerase into viral RNA, which translated and replicated in a cell-free extract, resulting in the de novo synthesis of infectious poliovirus. Experiments in tissue culture using neutralizing antibodies and CD155 receptor-specific antibodies and neurovirulence tests in CD155 transgenic mice confirmed that the synthetic virus had biochemical and pathogenic characteristics of poliovirus. Our results show that it is possible to synthesize an infectious agent by in vitro chemical-biochemical means solely by following instructions from a written sequence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cello, Jeronimo -- Paul, Aniko V -- Wimmer, Eckard -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):1016-8. Epub 2002 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, School of Medicine, State University of New York at Stony Brook, Stony Brook, NY 11794-5222, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12114528" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies, Monoclonal/immunology ; Capsid/metabolism ; Cell-Free System ; DNA, Complementary/*chemical synthesis/genetics ; DNA-Directed RNA Polymerases/genetics ; Female ; *Genome, Viral ; HeLa Cells ; Humans ; Male ; *Membrane Proteins ; Mice ; Mice, Transgenic ; Neutralization Tests ; Poliomyelitis/virology ; *Poliovirus/genetics/immunology/pathogenicity/physiology ; Promoter Regions, Genetic ; Protein Biosynthesis ; RNA, Viral/*chemical synthesis/genetics/physiology ; Receptors, Virus/genetics/immunology/metabolism ; Transcription, Genetic ; Viral Plaque Assay ; Viral Proteins ; Virulence ; Virus Replication
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 12
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    Enhanced and delayed stress-induced alcohol drinking in mice lacking functional CRH1 receptors (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-04
    Beschreibung: There is a relation between stress and alcohol drinking. We show that the corticotropin-releasing hormone (CRH) system that mediates endocrine and behavioral responses to stress plays a role in the control of long-term alcohol drinking. In mice lacking a functional CRH1 receptor, stress leads to enhanced and progressively increasing alcohol intake. The effect of repeated stress on alcohol drinking behavior appeared with a delay and persisted throughout life. It was associated with an up-regulation of the N-methyl-d-aspartate receptor subunit NR2B. Alterations in the CRH1 receptor gene and adaptional changes in NR2B subunits may constitute a genetic risk factor for stress-induced alcohol drinking and alcoholism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sillaber, Inge -- Rammes, Gerhard -- Zimmermann, Stephan -- Mahal, Beatrice -- Zieglgansberger, Walter -- Wurst, Wolfgang -- Holsboer, Florian -- Spanagel, Rainer -- New York, N.Y. -- Science. 2002 May 3;296(5569):931-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany. sillaber@mpipsykl.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11988580" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; *Alcohol Drinking ; Alcoholism/*etiology/genetics ; Animals ; Brain/metabolism ; Corticotropin-Releasing Hormone/physiology ; Ethanol/blood ; Female ; Hippocampus/physiology ; In Vitro Techniques ; Male ; Mice ; Mice, Knockout ; Models, Animal ; Mutation ; Receptors, AMPA/metabolism ; Receptors, Corticotropin-Releasing Hormone/*genetics/*physiology ; Receptors, Kainic Acid/metabolism ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Signal Transduction ; Stress, Physiological/physiopathology ; Stress, Psychological/*physiopathology ; Up-Regulation
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 13
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    Intellectual property. DuPont ups ante on use of Harvard's OncoMouse (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-23
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, Eliot -- New York, N.Y. -- Science. 2002 May 17;296(5571):1212.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016275" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Disease Models, Animal ; Drug Industry/legislation & jurisprudence ; Drug Screening Assays, Antitumor ; Mice ; *Mice, Transgenic ; National Institutes of Health (U.S.)/legislation & jurisprudence ; *Neoplasms, Experimental ; *Patents as Topic ; United States ; Universities/legislation & jurisprudence
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 14
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    Pheromone reception. When in doubt, mice mate rather than hate (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-02-02
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckman, Mary -- New York, N.Y. -- Science. 2002 Feb 1;295(5556):782.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11823614" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aggression ; Animals ; *Behavior, Animal ; Cues ; Female ; Male ; Membrane Proteins/*genetics/*physiology ; Mice ; Mice, Knockout ; Neurons/physiology ; Pheromones/*physiology ; Sex Characteristics ; *Sexual Behavior, Animal ; TRPC Cation Channels ; Vomeronasal Organ/*innervation/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 15
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    Inflammatory arthritis. How immune system gangs up on joints (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-09-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckman, Mary -- New York, N.Y. -- Science. 2002 Sep 6;297(5587):1626-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12215618" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arthritis/*immunology ; Arthritis, Rheumatoid/immunology ; Autoantibodies/immunology ; Humans ; Joints/*immunology ; Mast Cells/immunology ; Mice
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 16
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    Generation of an LFA-1 antagonist by the transfer of the ICAM-1 immunoregulatory epitope to a small molecule (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-02-09
    Beschreibung: The protein-protein interaction between leukocyte functional antigen-1 (LFA-1) and intercellular adhesion molecule-1 (ICAM-1) is critical to lymphocyte and immune system function. Here, we report on the transfer of the contiguous, nonlinear epitope of ICAM-1, responsible for its association with LFA-1, to a small-molecule framework. These LFA-1 antagonists bound LFA-1, blocked binding of ICAM-1, and inhibited a mixed lymphocyte reaction (MLR) with potency significantly greater than that of cyclosporine A. Furthermore, in comparison to an antibody to LFA-1, they exhibited significant anti-inflammatory effects in vivo. These results demonstrate the utility of small-molecule mimics of nonlinear protein epitopes and the protein epitopes themselves as leads in the identification of novel pharmaceutical agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gadek, T R -- Burdick, D J -- McDowell, R S -- Stanley, M S -- Marsters, J C Jr -- Paris, K J -- Oare, D A -- Reynolds, M E -- Ladner, C -- Zioncheck, K A -- Lee, W P -- Gribling, P -- Dennis, M S -- Skelton, N J -- Tumas, D B -- Clark, K R -- Keating, S M -- Beresini, M H -- Tilley, J W -- Presta, L G -- Bodary, S C -- New York, N.Y. -- Science. 2002 Feb 8;295(5557):1086-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioorganic Chemistry, Genentech, One DNA Way, South San Francisco, CA 94080, USA. trg@gene.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11834839" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Anti-Inflammatory Agents, Non-Steroidal/chemical ; synthesis/chemistry/metabolism/pharmacology ; Cyclosporine/pharmacology ; Dermatitis, Irritant/drug therapy ; Dinitrofluorobenzene ; Drug Design ; Enzyme-Linked Immunosorbent Assay ; Epitopes ; Female ; Humans ; Immunoglobulin Fab Fragments/immunology/pharmacology ; Immunosuppressive Agents/chemical synthesis/chemistry/metabolism/*pharmacology ; Intercellular Adhesion Molecule-1/chemistry/*immunology/*metabolism ; Lymphocyte Culture Test, Mixed ; Lymphocyte Function-Associated Antigen-1/immunology/*metabolism ; Mice ; Mice, Inbred BALB C ; Molecular Mimicry ; Mutagenesis ; Protein Structure, Secondary ; Structure-Activity Relationship ; Thiophenes/*chemical synthesis/chemistry/metabolism/*pharmacology ; beta-Alanine/analogs & derivatives/*chemical ; synthesis/chemistry/metabolism/*pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 17
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    Critical roles of activation-induced cytidine deaminase in the homeostasis of gut flora (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-11-16
    Beschreibung: Activation-induced cytidine deaminase (AID) plays an essential role in class switch recombination (CSR) and somatic hypermutation (SHM) of immunoglobulin genes. We report here that deficiency in AID results in the development of hyperplasia of isolated lymphoid follicles (ILFs) associated with a 100-fold expansion of anaerobic flora in the small intestine. Reduction of bacterial flora by antibiotic treatment of AID-/- mice abolished ILF hyperplasia as well as the germinal center enlargement seen in secondary lymphoid tissues. Because an inability to switch to immunoglobulin A on its own does not lead to a similar phenotype, these results suggest that SHM of ILF B cells plays a critical role in regulating intestinal microflora.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fagarasan, Sidonia -- Muramatsu, Masamichi -- Suzuki, Keiichiro -- Nagaoka, Hitoshi -- Hiai, Hiroshi -- Honjo, Tasuku -- New York, N.Y. -- Science. 2002 Nov 15;298(5597):1424-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12434060" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anti-Bacterial Agents ; B-Lymphocytes/immunology ; Bacteria, Aerobic/*growth & development ; Bacteria, Anaerobic/*growth & development ; Cell Division ; Colony Count, Microbial ; Cytidine Deaminase/genetics/*metabolism ; Dendritic Cells, Follicular/immunology ; Drug Therapy, Combination/pharmacology ; Genes, Immunoglobulin ; Germinal Center/immunology ; Homeostasis ; Hyperplasia ; Immunization ; Immunoglobulin Class Switching ; Immunoglobulin Variable Region/genetics ; Intestine, Small/immunology/*microbiology ; Lymphocyte Activation ; Lymphoid Tissue/immunology/*pathology ; Metronidazole/pharmacology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Peyer's Patches/pathology ; Somatic Hypermutation, Immunoglobulin ; T-Lymphocytes/immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 18
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    Inhibition of excess nodal signaling during mouse gastrulation by the transcriptional corepressor DRAP1 (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-12-10
    Beschreibung: The formation and patterning of mesoderm during mammalian gastrulation require the activity of Nodal, a secreted mesoderm-inducing factor of the transforming growth factor-beta (TGF-beta) family. Here we show that the transcriptional corepressor DRAP1 has a very specific role in regulation of Nodal activity during mouse embryogenesis. We find that loss of Drap1 leads to severe gastrulation defects that are consistent with increased expression of Nodal and can be partially suppressed by Nodal heterozygosity. Biochemical studies indicate that DRAP1 interacts with and inhibits DNA binding by the winged-helix transcription factor FoxH1 (FAST), a critical component of a positive feedback loop for Nodal activity. We propose that DRAP1 limits the spread of a morphogenetic signal by down-modulating the response to the Nodal autoregulatory loop.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iratni, Rabah -- Yan, Yu-Ting -- Chen, Canhe -- Ding, Jixiang -- Zhang, Yi -- Price, Sandy M -- Reinberg, Danny -- Shen, Michael M -- New York, N.Y. -- Science. 2002 Dec 6;298(5600):1996-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Biochemistry, Division of Nucleic Acids Enzymology, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12471260" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Animals ; Cell Line ; Crosses, Genetic ; DNA/metabolism ; DNA-Binding Proteins/metabolism ; *Embryonic and Fetal Development ; Female ; Forkhead Transcription Factors ; Gastrula/*physiology ; Gene Expression Regulation, Developmental ; Gene Targeting ; Heterozygote ; In Situ Hybridization ; Left-Right Determination Factors ; Male ; Mesoderm/cytology/physiology ; Mice ; Morphogenesis ; Mutation ; Nodal Protein ; Phenotype ; Protein Binding ; RNA Interference ; Recombinant Fusion Proteins/metabolism ; Repressor Proteins/genetics/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; *Signal Transduction ; Transcription Factors/metabolism ; Transforming Growth Factor beta/genetics/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 19
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    Genomics. Mmu 16--comparative genomic highlights (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-06-01
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Copeland, Neal G -- Jenkins, Nancy A -- O'Brien, Stephen J -- New York, N.Y. -- Science. 2002 May 31;296(5573):1617-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mouse Cancer Genetics Program, National Cancer Institute, Frederick, MD, 21702, USA. copeland@ncifcrf.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12040165" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Base Composition ; Biological Evolution ; Chromosome Aberrations ; Chromosomes/*genetics ; Chromosomes, Human/genetics ; Computational Biology ; Conserved Sequence ; Evolution, Molecular ; Gene Duplication ; Gene Rearrangement ; Genes ; Genome ; *Genome, Human ; Genomics ; Humans ; Mice ; Mice, Inbred Strains/*genetics ; Multigene Family ; *Sequence Analysis, DNA ; Species Specificity ; Synteny
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 20
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    Perspectives: neurobiology. The CRYs fo flies and mice (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hardin, P E -- Glossop, N R -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2460-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Houston, Houston, TX 77204, USA. phardin@uh.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10636810" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ARNTL Transcription Factors ; Animals ; Basic Helix-Loop-Helix Transcription Factors ; Biological Clocks/*physiology ; CLOCK Proteins ; Cell Cycle Proteins ; Circadian Rhythm/*physiology ; Cryptochromes ; Darkness ; Drosophila ; *Drosophila Proteins ; *Eye Proteins ; Feedback ; Flavoproteins/genetics/*physiology ; Gene Expression Regulation ; Light ; Mice ; Mice, Knockout ; Nuclear Proteins/*genetics/metabolism ; Period Circadian Proteins ; *Photoreceptor Cells, Invertebrate ; Promoter Regions, Genetic ; Receptors, G-Protein-Coupled ; Repressor Proteins/genetics/physiology ; Suprachiasmatic Nucleus/metabolism ; Trans-Activators/physiology ; Transcription Factors/physiology ; *Transcription, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 21
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    Photic induction of mPer1 and mPer2 in cry-deficient mice lacking a biological clock (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-05
    Beschreibung: Mice lacking mCry1 and mCry2 are behaviorally arrhythmic. As shown here, cyclic expression of the clock genes mPer1 and mPer2 (mammalian Period genes 1 and 2) in the suprachiasmatic nucleus and peripheral tissues is abolished and mPer1 and mPer2 mRNA levels are constitutively high. These findings indicate that the biological clock is eliminated in the absence of both mCRY1 and mCRY2 (mammalian cryptochromes 1 and 2) and support the idea that mammalian CRY proteins act in the negative limb of the circadian feedback loop. The mCry double-mutant mice retain the ability to have mPer1 and mPer2 expression induced by a brief light stimulus known to phase-shift the biological clock in wild-type animals. Thus, mCRY1 and mCRY2 are dispensable for light-induced phase shifting of the biological clock.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Okamura, H -- Miyake, S -- Sumi, Y -- Yamaguchi, S -- Yasui, A -- Muijtjens, M -- Hoeijmakers, J H -- van der Horst, G T -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2531-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Brain Science, Kobe University School of Medicine, Kobe 650-0017, Japan. okamurah@kobe-u.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10617474" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Clocks/*physiology ; Cell Cycle Proteins ; Circadian Rhythm/*physiology ; Cryptochromes ; *Drosophila Proteins ; *Eye Proteins ; Feedback ; Flavoproteins/genetics/*physiology ; Gene Expression Regulation ; In Situ Hybridization ; *Light ; Liver/metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mutation ; Nuclear Proteins/*genetics ; Period Circadian Proteins ; *Photoreceptor Cells, Invertebrate ; Polymerase Chain Reaction ; RNA, Messenger/genetics/metabolism ; Receptors, G-Protein-Coupled ; Retina/metabolism ; Suprachiasmatic Nucleus/metabolism ; Transcription Factors
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 22
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    Leakage-resistant blood vessels in mice transgenically overexpressing angiopoietin-1 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-05
    Beschreibung: Angiopoietin-1 (Ang1) and vascular endothelial growth factor (VEGF) are endothelial cell-specific growth factors. Direct comparison of transgenic mice overexpressing these factors in the skin revealed that the VEGF-induced blood vessels were leaky, whereas those induced by Ang1 were nonleaky. Moreover, vessels in Ang1-overexpressing mice were resistant to leaks caused by inflammatory agents. Coexpression of Ang1 and VEGF had an additive effect on angiogenesis but resulted in leakage-resistant vessels typical of Ang1. Ang1 therefore may be useful for reducing microvascular leakage in diseases in which the leakage results from chronic inflammation or elevated VEGF and, in combination with VEGF, for promoting growth of nonleaky vessels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thurston, G -- Suri, C -- Smith, K -- McClain, J -- Sato, T N -- Yancopoulos, G D -- McDonald, D M -- HL-24136/HL/NHLBI NIH HHS/ -- HL-59157/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2511-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Cardiovascular Research Institute, University of California, San Francisco, CA 94143-0452, USA. gavint@itsa.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10617467" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Angiopoietin-1 ; Animals ; Arterioles/anatomy & histology/physiology ; Binding Sites ; Capillaries/anatomy & histology/physiology ; *Capillary Permeability ; Ear ; Endothelial Growth Factors/genetics/*physiology ; Endothelium, Vascular/metabolism ; Inflammation/chemically induced ; Inflammation Mediators/pharmacology ; Lymphokines/genetics/*physiology ; Membrane Glycoproteins/genetics/*physiology ; Mice ; Mice, Transgenic ; Microcirculation/anatomy & histology/*physiology ; Mustard Plant ; *Neovascularization, Physiologic ; Plant Extracts/pharmacology ; Plant Lectins ; Plant Oils ; Plants, Medicinal ; Platelet Activating Factor/pharmacology ; Ricin/metabolism ; Serotonin/pharmacology ; Skin/blood supply/metabolism ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors ; Venules/anatomy & histology/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 23
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    Role of the mouse ank gene in control of tissue calcification and arthritis (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-07-15
    Beschreibung: Mutation at the mouse progressive ankylosis (ank) locus causes a generalized, progressive form of arthritis accompanied by mineral deposition, formation of bony outgrowths, and joint destruction. Here, we show that the ank locus encodes a multipass transmembrane protein (ANK) that is expressed in joints and other tissues and controls pyrophosphate levels in cultured cells. A highly conserved gene is present in humans and other vertebrates. These results identify ANK-mediated control of pyrophosphate levels as a possible mechanism regulating tissue calcification and susceptibility to arthritis in higher animals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ho, A M -- Johnson, M D -- Kingsley, D M -- 5T32GM07365/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Jul 14;289(5477):265-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology and Howard Hughes Medical Institute, Beckman Center B300, Stanford University School of Medicine, Stanford, CA 94305-5327, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10894769" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arthritis/*genetics/metabolism/pathology ; Base Sequence ; Biological Transport ; COS Cells ; Calcinosis/*genetics ; Chromosome Mapping ; Cloning, Molecular ; Dna ; Diphosphates/*metabolism ; Durapatite/metabolism ; Gene Expression ; Genetic Complementation Test ; Humans ; Membrane Proteins/*genetics/metabolism/*physiology ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Mutation ; Phenotype ; Phosphate Transport Proteins ; Physical Chromosome Mapping ; Sequence Homology, Nucleic Acid ; Tissue Distribution
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 24
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    Regulation of area identity in the mammalian neocortex by Emx2 and Pax6 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-04-15
    Beschreibung: The contribution of extrinsic and genetic mechanisms in determining areas of the mammalian neocortex has been a contested issue. This study analyzes the roles of the regulatory genes Emx2 and Pax6, which are expressed in opposing gradients in the neocortical ventricular zone, in specifying areas. Changes in the patterning of molecular markers and area-specific connections between the cortex and thalamus suggest that arealization of the neocortex is disproportionately altered in Emx2 and Pax6 mutant mice in opposing manners predicted from their countergradients of expression: rostral areas expand and caudal areas contract in Emx2 mutants, whereas the opposite effect is seen in Pax6 mutants. These findings suggest that Emx2 and Pax6 cooperate to regulate arealization of the neocortex and to confer area identity to cortical cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bishop, K M -- Goudreau, G -- O'Leary, D D -- NS31558/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2000 Apr 14;288(5464):344-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Neurobiology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10764649" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain Mapping ; Cadherins/biosynthesis/genetics ; DNA-Binding Proteins/*genetics/physiology ; Eye Proteins ; *Gene Expression ; Gene Expression Regulation, Developmental ; *Genes, Homeobox ; *Genes, Regulator ; Homeodomain Proteins/*genetics/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Mice, Mutant Strains ; Morphogenesis ; Neocortex/*embryology/metabolism ; Neural Pathways ; Occipital Lobe/embryology/metabolism ; Paired Box Transcription Factors ; Repressor Proteins ; Somatosensory Cortex/embryology/metabolism ; Thalamus/embryology ; Transcription Factors ; Visual Cortex/embryology/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 25
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    Effects of environment on compensatory mutations to ameliorate costs of antibiotic resistance (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-02-26
    Beschreibung: Most types of antibiotic resistance impose a biological cost on bacterial fitness. These costs can be compensated, usually without loss of resistance, by second-site mutations during the evolution of the resistant bacteria in an experimental host or in a laboratory medium. Different fitness-compensating mutations were selected depending on whether the bacteria evolved through serial passage in mice or in a laboratory medium. This difference in mutation spectra was caused by either a growth condition-specific formation or selection of the compensated mutants. These results suggest that bacterial evolution to reduce the costs of antibiotic resistance can take different trajectories within and outside a host.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bjorkman, J -- Nagaev, I -- Berg, O G -- Hughes, D -- Andersson, D I -- New York, N.Y. -- Science. 2000 Feb 25;287(5457):1479-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bacteriology, Swedish Institute for Infectious Disease Control, S-171 82 Solna, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10688795" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adaptation, Physiological ; Animals ; Anti-Bacterial Agents/*pharmacology ; *Antiporters ; Carrier Proteins/genetics ; Culture Media ; Drug Resistance, Microbial/*genetics ; Escherichia coli Proteins ; Evolution, Molecular ; Female ; Fusidic Acid/pharmacology ; Membrane Proteins/genetics ; Mice ; Mice, Inbred BALB C ; *Mutation ; Peptide Elongation Factor G/genetics ; Ribosomal Proteins/genetics ; Salmonella typhimurium/*drug effects/*genetics/growth & development/metabolism ; Selection, Genetic ; Serial Passage ; Streptomycin/pharmacology ; Suppression, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 26
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    Prostaglandin D2 as a mediator of allergic asthma (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-03-17
    Beschreibung: Allergic asthma is caused by the aberrant expansion in the lung of T helper cells that produce type 2 (TH2) cytokines and is characterized by infiltration of eosinophils and bronchial hyperreactivity. This disease is often triggered by mast cells activated by immunoglobulin E (IgE)-mediated allergic challenge. Activated mast cells release various chemical mediators, including prostaglandin D2 (PGD2), whose role in allergic asthma has now been investigated by the generation of mice deficient in the PGD receptor (DP). Sensitization and aerosol challenge of the homozygous mutant (DP-/-) mice with ovalbumin (OVA) induced increases in the serum concentration of IgE similar to those in wild-type mice subjected to this model of asthma. However, the concentrations of TH2 cytokines and the extent of lymphocyte accumulation in the lung of OVA-challenged DP-/- mice were greatly reduced compared with those in wild-type animals. Moreover, DP-/- mice showed only marginal infiltration of eosinophils and failed to develop airway hyperreactivity. Thus, PGD2 functions as a mast cell-derived mediator to trigger asthmatic responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsuoka, T -- Hirata, M -- Tanaka, H -- Takahashi, Y -- Murata, T -- Kabashima, K -- Sugimoto, Y -- Kobayashi, T -- Ushikubi, F -- Aze, Y -- Eguchi, N -- Urade, Y -- Yoshida, N -- Kimura, K -- Mizoguchi, A -- Honda, Y -- Nagai, H -- Narumiya, S -- New York, N.Y. -- Science. 2000 Mar 17;287(5460):2013-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto 606-8501, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10720327" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Allergens/immunology ; Animals ; Asthma/immunology/metabolism/pathology/*physiopathology ; Bronchial Hyperreactivity ; Bronchoalveolar Lavage Fluid/cytology/immunology ; Crosses, Genetic ; Female ; Gene Targeting ; Humans ; Immunoglobulin E/blood ; Interferon-gamma/metabolism ; Interleukins/metabolism ; Lung/immunology/metabolism/pathology ; Lymphocytes/immunology ; Male ; Mast Cells/metabolism ; Mice ; Mice, Inbred C57BL ; Mucus/secretion ; Ovalbumin/immunology ; Prostaglandin D2/metabolism/*physiology ; *Receptors, Immunologic ; Receptors, Prostaglandin/genetics/metabolism/*physiology ; Respiratory Mucosa/secretion
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    Localized Rac activation dynamics visualized in living cells (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-10-13
    Beschreibung: Signaling proteins are thought to be tightly regulated spatially and temporally in order to generate specific and localized effects. For Rac and other small guanosine triphosphatases, binding to guanosine triphosphate leads to interaction with downstream targets and regulates subcellular localization. A method called FLAIR (fluorescence activation indicator for Rho proteins) was developed to quantify the spatio-temporal dynamics of the Rac1 nucleotide state in living cells. FLAIR revealed precise spatial control of growth factor-induced Rac activation, in membrane ruffles and in a gradient of activation at the leading edge of motile cells. FLAIR exemplifies a generally applicable approach for examining spatio-temporal control of protein activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kraynov, V S -- Chamberlain, C -- Bokoch, G M -- Schwartz, M A -- Slabaugh, S -- Hahn, K M -- AG15430/AG/NIA NIH HHS/ -- GM39434/GM/NIGMS NIH HHS/ -- R01 GM-57464/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 2000 Oct 13;290(5490):333-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11030651" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; Actins/metabolism ; Animals ; Biosensing Techniques ; Blood ; Cell Membrane/*enzymology/physiology/ultrastructure ; *Cell Movement ; Cell Nucleus/*enzymology ; Cell Polarity ; Enzyme Activation ; Fluorescence ; Guanosine Triphosphate/*metabolism ; Mice ; Nuclear Envelope/enzymology ; Platelet-Derived Growth Factor/pharmacology ; Recombinant Fusion Proteins/metabolism ; Spectrometry, Fluorescence ; rac1 GTP-Binding Protein/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 28
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    Selective inhibition of NF-kappaB activation by a peptide that blocks the interaction of NEMO with the IkappaB kinase complex (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-09-01
    Beschreibung: Activation of the transcription factor nuclear factor (NF)-kappaB by proinflammatory stimuli leads to increased expression of genes involved in inflammation. Activation of NF-kappaB requires the activity of an inhibitor of kappaB (IkappaB)-kinase (IKK) complex containing two kinases (IKKalpha and IKKbeta) and the regulatory protein NEMO (NF-kappaB essential modifier). An amino-terminal alpha-helical region of NEMO associated with a carboxyl-terminal segment of IKKalpha and IKKbeta that we term the NEMO-binding domain (NBD). A cell-permeable NBD peptide blocked association of NEMO with the IKK complex and inhibited cytokine-induced NF-kappaB activation and NF-kappaB-dependent gene expression. The peptide also ameliorated inflammatory responses in two experimental mouse models of acute inflammation. The NBD provides a target for the development of drugs that would block proinflammatory activation of the IKK complex without inhibiting basal NF-kappaB activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉May, M J -- D'Acquisto, F -- Madge, L A -- Glockner, J -- Pober, J S -- Ghosh, S -- AI 33443/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2000 Sep 1;289(5484):1550-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Immunobiology and Department of Molecular Biophysics and Biochemistry, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10968790" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Anti-Inflammatory Agents, Non-Steroidal/chemistry/pharmacology ; COS Cells ; Cells, Cultured ; E-Selectin/biosynthesis/genetics ; Endothelium, Vascular/metabolism ; Gene Expression Regulation ; HeLa Cells ; Humans ; I-kappa B Kinase ; Inflammation/drug therapy ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Mutation ; NF-kappa B/*metabolism ; Peptides/chemistry/*pharmacology ; Point Mutation ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 29
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    A role for histone acetylation in the developmental regulation of VDJ recombination (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-22
    Beschreibung: VDJ recombination is developmentally regulated in vivo by enhancer-dependent changes in the accessibility of chromosomal recombination signal sequences to the recombinase, but the molecular nature of these changes is unknown. Here histone H3 acetylation was measured along versions of a transgenic VDJ recombination reporter and the endogenous T cell receptor alpha/delta locus. Enhancer activity was shown to impart long-range, developmentally regulated changes in H3 acetylation, and H3 acetylation status was tightly linked to VDJ recombination. H3 hyperacetylation is proposed as a molecular mechanism coupling enhancer activity to accessibility for VDJ recombination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McMurry, M T -- Krangel, M S -- GM 41052/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Jan 21;287(5452):495-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Post Office Box 3010, Duke University Medical Center, Durham NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10642553" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylation ; Animals ; Chromatin/metabolism ; DNA Nucleotidyltransferases/metabolism ; DNA-Binding Proteins/metabolism ; Enhancer Elements, Genetic ; *Gene Rearrangement, T-Lymphocyte ; *Genes, T-Cell Receptor alpha ; Genes, T-Cell Receptor beta ; *Genes, T-Cell Receptor delta ; Histones/*metabolism ; Homeodomain Proteins/metabolism ; Humans ; Mice ; Mice, Transgenic ; Nuclear Proteins ; Protein Sorting Signals ; *Recombination, Genetic ; T-Lymphocytes/*metabolism ; Transgenes ; VDJ Recombinases
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 30
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    Functional requirement for class I MHC in CNS development and plasticity (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-12-16
    Beschreibung: Class I major histocompatibility complex (class I MHC) molecules, known to be important for immune responses to antigen, are expressed also by neurons that undergo activity-dependent, long-term structural and synaptic modifications. Here, we show that in mice genetically deficient for cell surface class I MHC or for a class I MHC receptor component, CD3zeta, refinement of connections between retina and central targets during development is incomplete. In the hippocampus of adult mutants, N-methyl-D-aspartate receptor-dependent long-term potentiation (LTP) is enhanced, and long-term depression (LTD) is absent. Specific class I MHC messenger RNAs are expressed by distinct mosaics of neurons, reflecting a potential for diverse neuronal functions. These results demonstrate an important role for these molecules in the activity-dependent remodeling and plasticity of connections in the developing and mature mammalian central nervous system (CNS).〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2175035/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2175035/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huh, G S -- Boulanger, L M -- Du, H -- Riquelme, P A -- Brotz, T M -- Shatz, C J -- 1F32EY07016/EY/NEI NIH HHS/ -- EY06912/EY/NEI NIH HHS/ -- F32 EY007016/EY/NEI NIH HHS/ -- F32 EY007016-02/EY/NEI NIH HHS/ -- F32 EY007016-03/EY/NEI NIH HHS/ -- MH48108/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2000 Dec 15;290(5499):2155-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA. gshuh@alum.mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11118151" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD3/genetics/*physiology ; Brain/growth & development/*physiology ; Excitatory Postsynaptic Potentials ; Gene Expression Profiling ; Genes, MHC Class I ; Geniculate Bodies/physiology ; Hippocampus/growth & development/physiology ; Histocompatibility Antigens Class I/genetics/*physiology ; In Situ Hybridization ; Long-Term Potentiation ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mice, Mutant Strains ; Neural Pathways ; *Neuronal Plasticity ; Neurons/*physiology ; Receptors, GABA-A/metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Retina/growth & development/physiology ; Retinal Ganglion Cells/physiology ; Signal Transduction ; Synapses/*physiology ; Synaptic Transmission ; Visual Pathways
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 31
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    Property claims. A deluge of patents creates legal hassles for research (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-04-25
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 2000 Apr 14;288(5464):255-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10777404" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biotechnology ; Drug Industry ; Europe ; Genome ; Mice ; *Mice, Knockout/genetics ; *Mice, Transgenic/genetics ; National Institutes of Health (U.S.) ; *Patents as Topic ; *Research/legislation & jurisprudence ; Sequence Analysis, DNA ; Technology Transfer ; United States ; Universities
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 32
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    Epitopes involved in antibody-mediated protection from Ebola virus (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-03-04
    Beschreibung: To determine the ability of antibodies to provide protection from Ebola viruses, monoclonal antibodies (mAbs) to the Ebola glycoprotein were generated and evaluated for efficacy. We identified several protective mAbs directed toward five unique epitopes on Ebola glycoprotein. One of the epitopes is conserved among all Ebola viruses that are known to be pathogenic for humans. Some protective mAbs were also effective therapeutically when administered to mice 2 days after exposure to lethal Ebola virus. The identification of protective mAbs has important implications for developing vaccines and therapies for Ebola virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, J A -- Hevey, M -- Bakken, R -- Guest, S -- Bray, M -- Schmaljohn, A L -- Hart, M K -- New York, N.Y. -- Science. 2000 Mar 3;287(5458):1664-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Virology Division, U.S. Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Fort Detrick, Frederick, MD 21702-5011, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10698744" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies, Monoclonal/*immunology ; Antibodies, Viral/*immunology ; Antibody Affinity ; Antigens, Viral/immunology ; Binding, Competitive ; Complement System Proteins/immunology ; Ebolavirus/*immunology/physiology ; Epitopes/immunology ; Female ; Hemorrhagic Fever, Ebola/*prevention & control/therapy ; Humans ; Immunoglobulin G/immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Neutralization Tests ; Specific Pathogen-Free Organisms ; Viral Envelope Proteins/*immunology ; Viral Plaque Assay
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 33
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    Crystal structure of a gammadelta T cell receptor ligand T22: a truncated MHC-like fold (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-15
    Beschreibung: Murine T10 and T22 are highly related nonclassical major histocompatibility complex (MHC) class Ib proteins that bind to certain gammadelta T cell receptors (TCRs) in the absence of other components. The crystal structure of T22b at 3.1 angstroms reveals similarities to MHC class I molecules, but one side of the normal peptide-binding groove is severely truncated, which allows direct access to the beta-sheet floor. Potential gammadelta TCR-binding sites can be inferred from functional mapping of T10 and T22 point mutants and allelic variants. Thus, T22 represents an unusual variant of the MHC-like fold and indicates that gammadelta and alphabeta TCRs interact differently with their respective MHC ligands.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wingren, C -- Crowley, M P -- Degano, M -- Chien, Y -- Wilson, I A -- AI33431/AI/NIAID NIH HHS/ -- CA58896/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2000 Jan 14;287(5451):310-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10634787" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Amino Acid Substitution ; Animals ; Binding Sites ; Crystallography, X-Ray ; Glycosylation ; Histocompatibility Antigens Class I/*chemistry ; Hydrogen Bonding ; Ligands ; Mice ; Models, Molecular ; Point Mutation ; Protein Conformation ; Protein Folding ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Proteins/*chemistry/immunology/metabolism ; Receptors, Antigen, T-Cell, gamma-delta/immunology/*metabolism ; Surface Properties ; beta 2-Microglobulin/chemistry
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 34
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    Treatment of murine colitis by Lactococcus lactis secreting interleukin-10 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-08-26
    Beschreibung: The cytokine interleukin-10 (IL-10) has shown promise in clinical trials for treatment of inflammatory bowel disease (IBD). Using two mouse models, we show that the therapeutic dose of IL-10 can be reduced by localized delivery of a bacterium genetically engineered to secrete the cytokine. Intragastric administration of IL-10-secreting Lactococcus lactis caused a 50% reduction in colitis in mice treated with dextran sulfate sodium and prevented the onset of colitis in IL-10(-/-) mice. This approach may lead to better methods for cost-effective and long-term management of IBD in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steidler, L -- Hans, W -- Schotte, L -- Neirynck, S -- Obermeier, F -- Falk, W -- Fiers, W -- Remaut, E -- New York, N.Y. -- Science. 2000 Aug 25;289(5483):1352-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Ghent University and Flanders Interuniversity Institute for Biotechnology, K. L. Ledeganckstraat 35, 9000 Gent, Belgium. lothar.steidler@dmb.rug.ac.be〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10958782" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Transport ; Colitis/immunology/pathology/prevention & control/therapy ; Colon/immunology/metabolism/microbiology/pathology ; Dextran Sulfate ; Inflammatory Bowel Diseases/immunology/pathology/prevention & control/*therapy ; Interleukin-10/*administration & dosage/*biosynthesis/genetics/metabolism ; Intestinal Mucosa/metabolism/pathology ; Lactococcus lactis/*genetics/immunology/*metabolism ; Mice ; Probiotics/*therapeutic use ; Recombinant Proteins/administration & dosage/biosynthesis/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 35
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    Involvement of cellular caveolae in bacterial entry into mast cells (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-08-05
    Beschreibung: Caveolae are subcellular structures implicated in the import and transcytosis of macromolecules and in transmembrane signaling. To date, evidence for the existence of caveolae in hematopoietic cells has been ambiguous. Caveolae were detected in the microvilli and intracellular vesicles of cultured mouse bone marrow-derived mast cells (BMMCs). CD48, a receptor for FimH-expressing (type 1 fimbriated) Escherichia coli, was specifically localized to plasmalemmal caveolae in BMMCs. The involvement of caveolae in bacterial entry into BMMCs was indicated because caveolae-disrupting and -usurping agents specifically blocked E. coli entry, and markers of caveolae were actively recruited to sites of bacterial entry. The formation of bacteria-encapsulating caveolar chambers in BMMCs represents a distinct mechanism of microbial entry into phagocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shin, J S -- Gao, Z -- Abraham, S N -- AI 35678/AI/NIAID NIH HHS/ -- CA 14236/CA/NCI NIH HHS/ -- DK 50814/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2000 Aug 4;289(5480):785-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Pathology and Microbiology, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10926542" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adhesins, Bacterial/*metabolism ; *Adhesins, Escherichia coli ; Animals ; Antigens, CD/analysis/*metabolism ; Bacterial Adhesion ; Caveolin 1 ; *Caveolins ; Cell Fractionation ; Cell Membrane/chemistry/*metabolism/microbiology/ultrastructure ; Cholera Toxin/pharmacology ; Cyclodextrins/pharmacology ; *Endocytosis ; Escherichia coli/*metabolism/pathogenicity ; *Fimbriae Proteins ; Glycosylphosphatidylinositols/analysis ; Mast Cells/*metabolism/*microbiology/ultrastructure ; Membrane Proteins/analysis ; Mice ; Microscopy, Confocal ; Microscopy, Fluorescence ; Microscopy, Immunoelectron
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 36
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    Intellectual property. NIH cuts deal on use of OncoMouse (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-02-26
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 2000 Jan 28;287(5453):567.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10691532" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Mice ; *Mice, Transgenic ; *National Institutes of Health (U.S.) ; *Neoplasms, Experimental ; *Patents as Topic ; Research Support as Topic ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 37
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    Lipid research. Possible new way to lower cholesterol (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-09-19
    Beschreibung: Clinicians may soon be able to mount a multipronged attack against cholesterol, the artery-clogging lipid whose buildup in the body is a major contributor to heart attacks and other cardiovascular diseases. In work reported on page 1524, a team has pinpointed a biological master switch in mice that controls three pathways that work together to both rid the body of excess cholesterol and prevent its absorption from the intestine. The work suggests a new mechanism for reducing cholesterol, for example, with drugs that turn up the activity of the master switch, a protein known as the retinoid X receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferber, D -- New York, N.Y. -- Science. 2000 Sep 1;289(5484):1446-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10991725" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ATP Binding Cassette Transporter 1 ; ATP-Binding Cassette Transporters/*metabolism ; Animals ; Bile Acids and Salts ; Biological Transport/drug effects ; Cholesterol/*metabolism ; Cholesterol, Dietary/administration & dosage ; DNA-Binding Proteins/metabolism ; Glycoproteins/*metabolism ; Humans ; Intestinal Absorption/drug effects ; Intestines/drug effects/*metabolism ; Liver/metabolism ; Macrophages/metabolism ; Mice ; Orphan Nuclear Receptors ; *Receptors, Cytoplasmic and Nuclear ; Receptors, Retinoic Acid/*metabolism ; Receptors, Thyroid Hormone/metabolism ; Retinoid X Receptors ; Transcription Factors/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 38
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    Immunology. A touch of antibody class (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-06-08
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stavnezer, J -- New York, N.Y. -- Science. 2000 May 12;288(5468):984-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, University of Massachusetts Medical School, 55 Lake Avenue N., Worcester, MA 01655, USA. Janet.Stavnezer@umassmed.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10841719" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; B-Lymphocytes/*immunology ; Cytokines/immunology ; DNA/genetics/*metabolism ; Genes, Immunoglobulin ; *Immunoglobulin Class Switching ; Immunoglobulin Heavy Chains/genetics ; *Immunoglobulin Switch Region ; Mice ; Mice, Transgenic ; Models, Genetic ; *Nucleic Acid Hybridization ; RNA/genetics/*metabolism ; RNA Splicing ; Recombination, Genetic ; Ribonuclease H/genetics/metabolism ; Templates, Genetic ; Transcription, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 39
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    Regulation of cell fate decision of undifferentiated spermatogonia by GDNF (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-02-26
    Beschreibung: The molecular control of self-renewal and differentiation of stem cells has remained enigmatic. Transgenic loss-of-function and overexpression models now show that the dosage of glial cell line-derived neurotrophic factor (GDNF), produced by Sertoli cells, regulates cell fate decisions of undifferentiated spermatogonial cells that include the stem cells for spermatogenesis. Gene-targeted mice with one GDNF-null allele show depletion of stem cell reserves, whereas mice overexpressing GDNF show accumulation of undifferentiated spermatogonia. They are unable to respond properly to differentiation signals and undergo apoptosis upon retinoic acid treatment. Nonmetastatic testicular tumors are regularly formed in older GDNF-overexpressing mice. Thus, GDNF contributes to paracrine regulation of spermatogonial self-renewal and differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meng, X -- Lindahl, M -- Hyvonen, M E -- Parvinen, M -- de Rooij, D G -- Hess, M W -- Raatikainen-Ahokas, A -- Sainio, K -- Rauvala, H -- Lakso, M -- Pichel, J G -- Westphal, H -- Saarma, M -- Sariola, H -- New York, N.Y. -- Science. 2000 Feb 25;287(5457):1489-93.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Programs of Developmental Biology, Molecular Neurobiology, Electron Microscopy Unit, Institute of Biotechnology, Viikki Biocenter, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10688798" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Apoptosis/drug effects ; Cell Cycle ; Cell Differentiation/drug effects ; Cobalt/metabolism ; *Drosophila Proteins ; Female ; Gene Expression ; Gene Targeting ; Glial Cell Line-Derived Neurotrophic Factor ; Glial Cell Line-Derived Neurotrophic Factor Receptors ; Male ; Mice ; Mice, Transgenic ; Mitosis ; *Nerve Growth Factors ; Nerve Tissue Proteins/genetics/*physiology ; Proto-Oncogene Proteins/genetics/metabolism ; Proto-Oncogene Proteins c-ret ; Receptor Protein-Tyrosine Kinases/genetics/metabolism ; Sertoli Cells/cytology/physiology ; *Spermatogenesis ; Spermatogonia/*cytology/drug effects ; Stem Cells/*cytology ; Testicular Neoplasms/pathology ; Testis/anatomy & histology ; Vitamin A/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 40
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    Two-amino acid molecular switch in an epithelial morphogen that regulates binding to two distinct receptors (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-10-20
    Beschreibung: Ectodysplasin, a member of the tumor necrosis factor family, is encoded by the anhidrotic ectodermal dysplasia (EDA) gene. Mutations in EDA give rise to a clinical syndrome characterized by loss of hair, sweat glands, and teeth. EDA-A1 and EDA-A2 are two isoforms of ectodysplasin that differ only by an insertion of two amino acids. This insertion functions to determine receptor binding specificity, such that EDA-A1 binds only the receptor EDAR, whereas EDA-A2 binds only the related, but distinct, X-linked ectodysplasin-A2 receptor (XEDAR). In situ binding and organ culture studies indicate that EDA-A1 and EDA-A2 are differentially expressed and play a role in epidermal morphogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yan, M -- Wang, L C -- Hymowitz, S G -- Schilbach, S -- Lee, J -- Goddard, A -- de Vos, A M -- Gao, W Q -- Dixit, V M -- New York, N.Y. -- Science. 2000 Oct 20;290(5491):523-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Oncology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11039935" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Binding Sites ; Cell Line ; DNA-Binding Proteins/metabolism ; Ectodermal Dysplasia/genetics ; Ectodysplasins ; Epidermis/embryology/*metabolism ; Humans ; *I-kappa B Proteins ; In Situ Hybridization ; Ligands ; Membrane Proteins/*chemistry/*metabolism ; Mice ; Models, Molecular ; Molecular Sequence Data ; Morphogenesis ; NF-kappa B/metabolism ; Phosphorylation ; Point Mutation ; Protein Conformation ; Proteins/metabolism ; Receptors, Cell Surface/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; TNF Receptor-Associated Factor 6 ; Transfection
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 41
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    Induction and maintenance of the neuronal cholinergic phenotype in the central nervous system by BMP-9 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-07-15
    Beschreibung: Bone morphogenetic proteins (BMPs) have multiple functions in the developing nervous system. A member of this family, BMP-9, was found to be highly expressed in the embryonic mouse septum and spinal cord, indicating a possible role in regulating the cholinergic phenotype. In cultured neurons, BMP-9 directly induced the expression of the cholinergic gene locus encoding choline acetyltransferase and the vesicular acetylcholine transporter and up-regulated acetylcholine synthesis. The effect was reversed upon withdrawal of BMP-9. Intracerebroventricular injection of BMP-9 increased acetylcholine levels in vivo. Although certain other BMPs also up-regulated the cholinergic phenotype in vitro, they were less effective than BMP-9. These data indicate that BMP-9 is a differentiating factor for cholinergic central nervous system neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lopez-Coviella, I -- Berse, B -- Krauss, R -- Thies, R S -- Blusztajn, J K -- P01 AG09525/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2000 Jul 14;289(5477):313-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry and Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA 02118, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10894782" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylcholine/biosynthesis ; Animals ; Bone Morphogenetic Proteins/*physiology ; Carrier Proteins/genetics ; Cells, Cultured ; Central Nervous System ; Choline O-Acetyltransferase/genetics ; Embryo, Mammalian/metabolism ; Fibroblast Growth Factor 2/physiology ; Gene Expression Regulation, Developmental ; Gene Expression Regulation, Enzymologic ; Growth Differentiation Factor 2 ; *Membrane Transport Proteins ; Mice ; Neurons/metabolism ; Phenotype ; RNA, Messenger/metabolism ; Septum of Brain/embryology/metabolism ; Spinal Cord/embryology/metabolism ; Up-Regulation ; Vesicular Acetylcholine Transport Proteins ; *Vesicular Transport Proteins
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 42
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    Transgenic mouse model of stunned myocardium (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-22
    Beschreibung: Stunned myocardium is a syndrome of reversible contractile failure that frequently complicates coronary artery disease. Cardiac excitation is uncoupled from contraction at the level of the myofilaments. Selective proteolysis of the thin filament protein troponin I has been correlated with stunned myocardium. Here, transgenic mice expressing the major degradation product of troponin I (TnI1-193) in the heart were found to develop ventricular dilatation, diminished contractility, and reduced myofilament calcium responsiveness, recapitulating the phenotype of stunned myocardium. Proteolysis of troponin I also occurs in ischemic human cardiac muscle. Thus, troponin I proteolysis underlies the pathogenesis of a common acquired form of heart failure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murphy, A M -- Kogler, H -- Georgakopoulos, D -- McDonough, J L -- Kass, D A -- Van Eyk, J E -- Marban, E -- HL 44065/HL/NHLBI NIH HHS/ -- HL 63038/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2000 Jan 21;287(5452):488-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Johns Hopkins University School of Medicine, Ross Building 1144, 720 Rutland Avenue, Baltimore, MD 21205, USA. murphy@jhmi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10642551" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actin Cytoskeleton/metabolism ; Adrenergic beta-Agonists/pharmacology ; Animals ; Calcium/metabolism ; Cardiomegaly/pathology ; Dilatation, Pathologic ; *Disease Models, Animal ; Heart Rate ; Heart Ventricles/pathology ; Humans ; Isoproterenol/pharmacology ; Mice ; Mice, Inbred C57BL ; *Mice, Transgenic ; Myocardial Contraction ; Myocardial Stunning/*metabolism/pathology/physiopathology ; Myocardium/*metabolism/pathology ; Myofibrils/metabolism ; Troponin I/genetics/*metabolism ; Ventricular Function, Left
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 43
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    Perspectives: drug delivery. Regulating export of ER cargo (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-02-26
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aridor, M -- Balch, W E -- New York, N.Y. -- Science. 2000 Feb 4;287(5454):816-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Biology, Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10691557" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Transport ; Cell Line ; Drug Delivery Systems ; Endoplasmic Reticulum/*metabolism/secretion ; Golgi Apparatus/metabolism ; Growth Hormone/chemistry/metabolism/secretion ; Immunophilins/chemistry/metabolism ; Insulin/chemistry/metabolism/secretion ; Ligands ; Mice ; Models, Biological ; Protein Conformation ; Protein Engineering ; Protein Folding ; Recombinant Fusion Proteins/*chemistry/*metabolism/secretion ; Tacrolimus Binding Proteins
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 44
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    Role of the enteric nervous system in the fluid and electrolyte secretion of rotavirus diarrhea (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-22
    Beschreibung: The mechanism underlying the intestinal fluid loss in rotavirus diarrhea, which often afflicts children in developing countries, is not known. One hypothesis is that the rotavirus evokes intestinal fluid and electrolyte secretion by activation of the nervous system in the intestinal wall, the enteric nervous system (ENS). Four different drugs that inhibit ENS functions were used to obtain experimental evidence for this hypothesis in mice in vitro and in vivo. The involvement of the ENS in rotavirus diarrhea indicates potential sites of action for drugs in the treatment of the disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lundgren, O -- Peregrin, A T -- Persson, K -- Kordasti, S -- Uhnoo, I -- Svensson, L -- New York, N.Y. -- Science. 2000 Jan 21;287(5452):491-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Goteborg University, Box 432, S-405 30 Goteborg, Sweden. ove.lundgren@fysiologi.gu.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10642552" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Newborn ; Body Water/*secretion ; Diarrhea/drug therapy/*physiopathology ; Electrolytes/*metabolism ; Enteric Nervous System/drug effects/*physiopathology ; Hexamethonium/pharmacology ; In Vitro Techniques ; Intestinal Mucosa/drug effects/*secretion ; Intestine, Small/innervation ; Lidocaine/pharmacology ; Mecamylamine/pharmacology ; Mice ; Mice, Inbred BALB C ; Nicotinic Antagonists/pharmacology ; Patch-Clamp Techniques ; Rotavirus Infections/drug therapy/*physiopathology ; Synaptic Transmission/drug effects ; Tetrodotoxin/pharmacology ; Theophylline/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 45
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    Regulation of antigen-specific CD8+ T cell homeostasis by perforin and interferon-gamma (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-11-18
    Beschreibung: T cell memory depends on factors that regulate expansion and death of these cells after antigenic stimulation. Mice deficient in perforin and interferon-gamma (IFN-gamma) exhibited increased expansion, altered immunodominance, and decreased death of antigen-specific CD8+ T cells after infection with an attenuated strain of Listeria monocytogenes, which was cleared from these mice. Expansion of CD8+ T cells was controlled by perforin, whereas IFN-gamma regulated immunodominance and the death phase. Thus, perforin and IFN-gamma regulate distinct elements of CD8+ T cell homeostasis independently of their role as antimicrobial effector molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Badovinac, V P -- Tvinnereim, A R -- Harty, J T -- AI36864/AI/NIAID NIH HHS/ -- AI42767/AI/NIAID NIH HHS/ -- T32AI07511/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 2000 Nov 17;290(5495):1354-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA 52242, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11082062" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigen-Presenting Cells/immunology ; Antigens, Bacterial/immunology ; Apoptosis ; CD8-Positive T-Lymphocytes/cytology/*immunology ; Homeostasis ; Immunodominant Epitopes/*immunology ; *Immunologic Memory ; Interferon-gamma/*physiology ; Listeria monocytogenes/immunology ; Listeriosis/*immunology ; Lymphocytic Choriomeningitis/immunology ; Membrane Glycoproteins/*physiology ; Mice ; Mice, Inbred BALB C ; Mice, Knockout ; Perforin ; Pore Forming Cytotoxic Proteins
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 46
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    Inhibition of experimental liver cirrhosis in mice by telomerase gene delivery (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-02-26
    Beschreibung: Accelerated telomere loss has been proposed to be a factor leading to end-stage organ failure in chronic diseases of high cellular turnover such as liver cirrhosis. To test this hypothesis directly, telomerase-deficient mice, null for the essential telomerase RNA (mTR) gene, were subjected to genetic, surgical, and chemical ablation of the liver. Telomere dysfunction was associated with defects in liver regeneration and accelerated the development of liver cirrhosis in response to chronic liver injury. Adenoviral delivery of mTR into the livers of mTR(-/-) mice with short dysfunctional telomeres restored telomerase activity and telomere function, alleviated cirrhotic pathology, and improved liver function. These studies indicate that telomere dysfunction contributes to chronic diseases of continual cellular loss-replacement and encourage the evaluation of "telomerase therapy" for such diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rudolph, K L -- Chang, S -- Millard, M -- Schreiber-Agus, N -- DePinho, R A -- K08 AG001019/AG/NIA NIH HHS/ -- R01HD28317/HD/NICHD NIH HHS/ -- R01HD34880/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2000 Feb 18;287(5456):1253-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Adult Oncology, Medicine and Genetics, Dana-Farber Cancer Institute, 44 Binney Street (M413), and Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10678830" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenoviridae/genetics ; Animals ; Apoptosis ; Carbon Tetrachloride/toxicity ; Gene Transfer Techniques ; *Genetic Therapy ; Genetic Vectors ; Hepatectomy ; Liver/enzymology/*pathology ; Liver Cirrhosis, Experimental/enzymology/pathology/physiopathology/*therapy ; *Liver Regeneration ; Mice ; Mice, Knockout ; Mice, Transgenic ; Mitosis ; Spleen/enzymology ; Telomerase/*genetics/metabolism ; Telomere/physiology/ultrastructure ; Transforming Growth Factor beta/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 47
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    CD95/CD95 ligand interactions on epithelial cells in host defense to Pseudomonas aeruginosa (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-10-20
    Beschreibung: Pseudomonas aeruginosa causes severe infections, particularly of the lung, that are life threatening. Here, we show that P. aeruginosa infection induces apoptosis of lung epithelial cells by activation of the endogenous CD95/CD95 ligand system. Deficiency of CD95 or CD95 ligand on epithelial cells prevented apoptosis of lung epithelial cells in vivo as well as in vitro. The importance of CD95/CD95 ligand-mediated lung epithelial cell apoptosis was demonstrated by the rapid development of sepsis in CD95- or CD95 ligand-deficient mice, but not in normal mice, after P. aeruginosa infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grassme, H -- Kirschnek, S -- Riethmueller, J -- Riehle, A -- von Kurthy, G -- Lang, F -- Weller, M -- Gulbins, E -- New York, N.Y. -- Science. 2000 Oct 20;290(5491):527-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Tuebingen, Gmelinstrasse 5, 72076 Tuebingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11039936" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD95/genetics/*metabolism ; *Apoptosis ; Bone Marrow Transplantation ; Cell Line ; Epithelial Cells/*immunology/microbiology/pathology ; Fas Ligand Protein ; Humans ; In Situ Nick-End Labeling ; Lung/*immunology/microbiology/pathology ; Lung Diseases/*immunology/microbiology/pathology ; Membrane Glycoproteins/genetics/*metabolism ; Mice ; Mice, Inbred C3H ; Pseudomonas Infections/*immunology/microbiology/pathology ; Pseudomonas aeruginosa/immunology/*pathogenicity ; Sepsis/microbiology ; Spleen/microbiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 48
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    Spongiform disease. Experts downplay new vCJD fears (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-09-23
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 2000 Sep 8;289(5485):1663-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11001722" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Animals, Domestic ; Carrier State/*veterinary ; Cattle ; Creutzfeldt-Jakob Syndrome/epidemiology/prevention & control/*transmission ; Cricetinae ; Encephalopathy, Bovine Spongiform/epidemiology/prevention & control/*transmission ; Great Britain/epidemiology ; Humans ; Mice ; Prion Diseases/*transmission ; Species Specificity
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 49
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    Biomedicine. Protein loss in cancer cachexia (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-10-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tisdale, M J -- New York, N.Y. -- Science. 2000 Sep 29;289(5488):2293-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Pharmaceutical Sciences Research Institute, Aston University, Birmingham B4 7ET, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11041796" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Blood Proteins/metabolism ; Cachexia/drug therapy/etiology/*metabolism/pathology ; Cell Differentiation ; Cysteine Endopeptidases/genetics/metabolism ; Cytokines/pharmacology ; Homeostasis ; Humans ; Interferon-gamma/pharmacology ; Mice ; Multienzyme Complexes/genetics/metabolism ; Muscle Proteins/*metabolism ; Muscle, Skeletal/cytology/*metabolism/pathology ; MyoD Protein/genetics/metabolism ; Myosins/genetics/metabolism ; NF-kappa B/*metabolism ; Neoplasms/*complications ; Promoter Regions, Genetic ; Proteasome Endopeptidase Complex ; Proteoglycans ; Transcription, Genetic ; Tumor Necrosis Factor-alpha/pharmacology ; Ubiquitins/metabolism
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 50
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    A primitive T cell-independent mechanism of intestinal mucosal IgA responses to commensal bacteria (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-06-24
    Beschreibung: The immunoglobulin A (IgA) is produced to defend mucosal surfaces from environmental organisms, but host defenses against the very heavy load of intestinal commensal microorganisms are poorly understood. The IgA against intestinal commensal bacterial antigens was analyzed; it was not simply "natural antibody" but was specifically induced and responded to antigenic changes within an established gut flora. In contrast to IgA responses against exotoxins, a significant proportion of this specific anti-commensal IgA induction was through a pathway that was independent of T cell help and of follicular lymphoid tissue organization, which may reflect an evolutionarily primitive form of specific immune defense.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Macpherson, A J -- Gatto, D -- Sainsbury, E -- Harriman, G R -- Hengartner, H -- Zinkernagel, R M -- New York, N.Y. -- Science. 2000 Jun 23;288(5474):2222-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Experimental Immunology, Universitatsspital, Schmelzbergstrasse 12, CH8091, Zurich, Switzerland. amacpher@pathol.unizh.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10864873" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibody Specificity ; Antigens, Bacterial/immunology ; B-Lymphocytes/*immunology ; Bacterial Proteins/immunology ; Enterobacter cloacae/*immunology ; Escherichia coli/*immunology ; Genes, T-Cell Receptor ; Germ-Free Life ; *Immunity, Mucosal ; Immunoglobulin A, Secretory/*biosynthesis/immunology ; Intestinal Mucosa/*immunology/microbiology ; Lipopolysaccharides/immunology ; Mice ; Mice, Inbred C57BL ; Peritoneum/cytology ; Plasma Cells/immunology ; Porins/immunology ; Specific Pathogen-Free Organisms ; T-Lymphocytes/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 51
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    Genetics. Was Lamarck just a little bit right? (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-04-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 2000 Apr 7;288(5463):38.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10766632" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Biological Evolution ; *DNA Methylation ; France ; *Gene Expression Regulation ; Gene Silencing ; Hair Color/genetics ; History, 18th Century ; History, 19th Century ; Mice ; *Mutation ; Plants/genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 52
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    Requirement of JNK for stress-induced activation of the cytochrome c-mediated death pathway (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-05-08
    Beschreibung: The c-Jun NH2-terminal kinase (JNK) is activated when cells are exposed to ultraviolet (UV) radiation. However, the functional consequence of JNK activation in UV-irradiated cells has not been established. It is shown here that JNK is required for UV-induced apoptosis in primary murine embryonic fibroblasts. Fibroblasts with simultaneous targeted disruptions of all the functional Jnk genes were protected against UV-stimulated apoptosis. The absence of JNK caused a defect in the mitochondrial death signaling pathway, including the failure to release cytochrome c. These data indicate that mitochondria are influenced by proapoptotic signal transduction through the JNK pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tournier, C -- Hess, P -- Yang, D D -- Xu, J -- Turner, T K -- Nimnual, A -- Bar-Sagi, D -- Jones, S N -- Flavell, R A -- Davis, R J -- New York, N.Y. -- Science. 2000 May 5;288(5467):870-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Program in Molecular Medicine, Department of Biochemistry & Molecular Biology, University of Massachusetts Medical School, Worcester, MA 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10797012" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Apoptosis ; Apoptotic Protease-Activating Factor 1 ; Caspase 3 ; Caspase 9 ; Caspases/metabolism ; Cell Count ; Cell Division ; Cells, Cultured ; Cytochrome c Group/*metabolism ; DNA Fragmentation ; Enzyme Activation ; Fibroblasts ; Gene Targeting ; JNK Mitogen-Activated Protein Kinases ; MAP Kinase Signaling System ; Methyl Methanesulfonate/pharmacology ; Mice ; Mitochondria/metabolism ; Mitogen-Activated Protein Kinases/genetics/*metabolism ; NF-kappa B/metabolism ; *Protein-Serine-Threonine Kinases ; Proteins/metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-akt ; Proto-Oncogene Proteins c-bcl-2/metabolism ; Tumor Suppressor Protein p53/metabolism ; Ultraviolet Rays
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 53
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    Structural mechanism for STI-571 inhibition of abelson tyrosine kinase (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-09-16
    Beschreibung: The inadvertent activation of the Abelson tyrosine kinase (Abl) causes chronic myelogenous leukemia (CML). A small-molecule inhibitor of Abl (STI-571) is effective in the treatment of CML. We report the crystal structure of the catalytic domain of Abl, complexed to a variant of STI-571. Critical to the binding of STI-571 is the adoption by the kinase of an inactive conformation, in which a centrally located "activation loop" is not phosphorylated. The conformation of this loop is distinct from that in active protein kinases, as well as in the inactive form of the closely related Src kinases. These results suggest that compounds that exploit the distinctive inactivation mechanisms of individual protein kinases can achieve both high affinity and high specificity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schindler, T -- Bornmann, W -- Pellicena, P -- Miller, W T -- Clarkson, B -- Kuriyan, J -- GM29362/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Sep 15;289(5486):1938-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratories of Molecular Biophysics and Howard Hughes Medical Institute, The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10988075" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antineoplastic Agents/chemistry/*pharmacology ; Benzamides ; Catalytic Domain ; Crystallography, X-Ray ; Enzyme Activation ; Enzyme Inhibitors/chemistry/*pharmacology ; Humans ; Imatinib Mesylate ; Mice ; Models, Molecular ; Phosphorylation ; *Piperazines ; Protein Conformation ; Proto-Oncogene Proteins c-abl/*antagonists & inhibitors/chemistry/metabolism ; Pyrimidines/chemistry/*pharmacology ; Recombinant Fusion Proteins ; Structure-Activity Relationship
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 54
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    A structural framework for deciphering the link between I-Ag7 and autoimmune diabetes (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-04-25
    Beschreibung: Susceptibility to murine and human insulin-dependent diabetes mellitus correlates strongly with major histocompatibility complex (MHC) class II I-A or HLA-DQ alleles that lack an aspartic acid at position beta57. I-Ag7 lacks this aspartate and is the only class II allele expressed by the nonobese diabetic mouse. The crystal structure of I-Ag7 was determined at 2.6 angstrom resolution as a complex with a high-affinity peptide from the autoantigen glutamic acid decarboxylase (GAD) 65. I-Ag7 has a substantially wider peptide-binding groove around beta57, which accounts for distinct peptide preferences compared with other MHC class II alleles. Loss of Asp(beta57) leads to an oxyanion hole in I-Ag7 that can be filled by peptide carboxyl residues or, perhaps, through interaction with the T cell receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corper, A L -- Stratmann, T -- Apostolopoulos, V -- Scott, C A -- Garcia, K C -- Kang, A S -- Wilson, I A -- Teyton, L -- CA58896/CA/NCI NIH HHS/ -- DK55037/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2000 Apr 21;288(5465):505-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10775108" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Aspartic Acid/chemistry ; Crystallography, X-Ray ; Diabetes Mellitus, Type 1/*immunology ; Drosophila melanogaster ; *Genes, MHC Class II ; Glutamate Decarboxylase/metabolism ; Histocompatibility Antigens Class II/*chemistry/genetics/metabolism ; Humans ; Hydrogen Bonding ; Mice ; Mice, Inbred NOD ; Models, Molecular ; Molecular Sequence Data ; Peptide Library ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Receptors, Antigen, T-Cell/metabolism ; Recombinant Proteins/chemistry/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 55
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    Development of CD8alpha-positive dendritic cells from a common myeloid progenitor (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-12-16
    Beschreibung: Dendritic cells (DCs) are critical in both initiating adaptive immune responses and maintaining tolerance to self antigens. These apparently contradictory roles have been suggested to depend on different subsets of DCs that arise from either myeloid or lymphoid hematopoietic origins, respectively. Although DC expression of CD8alpha is attributed to a lymphoid origin, here we show that both CD8alpha+ and CD8alpha- DCs can arise from clonogenic common myeloid progenitors in both thymus and spleen. Thus, expression of CD8alpha is not indicative of a lymphoid origin, and phenotypic and functional differences among DC subsets are likely to reflect maturation status rather than ontogeny.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Traver, D -- Akashi, K -- Manz, M -- Merad, M -- Miyamoto, T -- Engleman, E G -- Weissman, I L -- 5T32 AI-07290/AI/NIAID NIH HHS/ -- CA42551/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2000 Dec 15;290(5499):2152-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11118150" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD/analysis ; Antigens, CD8/*analysis ; B-Lymphocytes/cytology/immunology ; Cell Lineage ; Dendritic Cells/*cytology/*immunology ; Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/cytology ; Immunophenotyping ; Mice ; Mice, Inbred C57BL ; Myeloid Progenitor Cells/*cytology/transplantation ; Spleen/*cytology/immunology ; T-Lymphocytes/cytology/immunology ; Thymus Gland/*cytology/immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 56
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    Obesity. Enzyme blocker prompts mice to shed weight (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-08-05
    Beschreibung: A multidisciplinary team may have discovered an important new weapon in the battle of the bulge. On page 2379 of this issue, the team reports that a molecule that is needed for fat synthesis in the body may play a key role in appetite signaling in the brain. Moreover, the investigators produced a synthetic inhibitor of this molecule that spurred a dramatic drop in appetite and weight in mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gura, T -- New York, N.Y. -- Science. 2000 Jun 30;288(5475):2299-300.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10917820" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Appetite/drug effects ; Appetite Depressants/*pharmacology ; Brain/metabolism ; Enzyme Inhibitors/*pharmacology ; Fasting ; Fatty Acid Synthases/*antagonists & inhibitors ; Humans ; Liver/drug effects/metabolism ; Malonyl Coenzyme A/metabolism ; Mice ; Neuropeptide Y/genetics/metabolism ; Obesity/*drug therapy ; RNA, Messenger/genetics/metabolism ; Weight Loss/*drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 57
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    Circadian rhythms. Two feedback loops run mammalian clock (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-06-08
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 2000 May 12;288(5468):943-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10841707" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ARNTL Transcription Factors ; Animals ; Basic Helix-Loop-Helix Transcription Factors ; Biological Clocks/genetics/*physiology ; CLOCK Proteins ; Cell Cycle Proteins ; Cell Nucleus/metabolism ; Circadian Rhythm/genetics/*physiology ; Cryptochromes ; Drosophila/metabolism ; *Drosophila Proteins ; *Eye Proteins ; Feedback ; Flavoproteins/genetics/*metabolism ; *Gene Expression Regulation ; Mice ; Mutation ; Nuclear Proteins/genetics/*metabolism ; Period Circadian Proteins ; *Photoreceptor Cells, Invertebrate ; Receptors, G-Protein-Coupled ; Trans-Activators/genetics/metabolism ; Transcription Factors/genetics/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 58
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    Transport of peptide-MHC class II complexes in developing dendritic cells (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-04-25
    Beschreibung: Major histocompatibility complex class II (MHC II) molecules capture peptides within the endocytic pathway to generate T cell receptor (TCR) ligands. Immature dendritic cells (DCs) sequester intact antigens in lysosomes, processing and converting antigens into peptide-MHC II complexes upon induction of DC maturation. The complexes then accumulate in distinctive, nonlysosomal MHC II+ vesicles that appear to migrate to the cell surface. Although the vesicles exclude soluble lysosomal contents and antigen-processing machinery, many contain MHC I and B7 costimulatory molecules. After arrival at the cell surface, the MHC and costimulatory molecules remain clustered. Thus, transport of peptide-MHC II complexes by DCs not only accomplishes transfer from late endocytic compartments to the plasma membrane, but does so in a manner that selectively concentrates TCR ligands and costimulatory molecules for T cell contact.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Turley, S J -- Inaba, K -- Garrett, W S -- Ebersold, M -- Unternaehrer, J -- Steinman, R M -- Mellman, I -- AI-13013/AI/NIAID NIH HHS/ -- AI-34098/AI/NIAID NIH HHS/ -- AI-39672/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2000 Apr 21;288(5465):522-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Section of Immunobiology, Ludwig Institute for Cancer Research, Yale University School of Medicine, 333 Cedar Street, Post Office Box 208002, New Haven, CT 06520-8002, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10775112" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies, Monoclonal ; *Antigen Presentation ; Antigens, CD/immunology/metabolism ; Antigens, CD86 ; B-Lymphocytes/immunology/metabolism ; Bicyclo Compounds, Heterocyclic/pharmacology ; Biological Transport ; Cell Membrane/immunology/metabolism ; Cells, Cultured ; Dendritic Cells/*immunology/*metabolism ; Endocytosis ; Endosomes/immunology/metabolism ; Histocompatibility Antigens Class I/immunology/metabolism ; Histocompatibility Antigens Class II/immunology/*metabolism ; Kinetics ; Ligands ; Lipopolysaccharides/immunology ; Lysosomes/immunology/metabolism ; Membrane Glycoproteins/immunology/metabolism ; Mice ; Mice, Inbred C3H ; Muramidase/immunology/*metabolism ; Peptide Fragments/immunology/*metabolism ; Receptors, Antigen, T-Cell/metabolism ; Thiazoles/pharmacology ; Thiazolidines
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 59
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    Angiogenesis research. Cancer drugs found to work in new way (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-04-25
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 2000 Apr 14;288(5464):245.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10777399" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Angiogenesis Inhibitors/*administration & dosage/therapeutic use/toxicity ; Animals ; Antineoplastic Combined Chemotherapy Protocols/*administration & ; dosage/therapeutic use/toxicity ; Clinical Trials as Topic ; Cyclohexanes ; Humans ; Mice ; Neoplasms/*drug therapy/pathology ; Neoplasms, Experimental/drug therapy/pathology ; Neovascularization, Pathologic/*drug therapy/pathology ; Sesquiterpenes/administration & dosage/therapeutic use
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 60
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    Family of bitter taste receptors found (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-04-01
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 2000 Mar 24;287(5461):2133-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10744529" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cells, Cultured ; Chemoreceptor Cells/*physiology ; Humans ; Mice ; Multigene Family ; Receptors, Cell Surface/genetics/*physiology ; *Taste ; Taste Buds/*physiology ; Transducin/biosynthesis
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 61
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    NF-kappaB-induced loss of MyoD messenger RNA: possible role in muscle decay and cachexia (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-09-29
    Beschreibung: MyoD regulates skeletal muscle differentiation (SMD) and is essential for repair of damaged tissue. The transcription factor nuclear factor kappa B (NF-kappaB) is activated by the cytokine tumor necrosis factor (TNF), a mediator of skeletal muscle wasting in cachexia. Here, the role of NF-kappaB in cytokine-induced muscle degeneration was explored. In differentiating C2C12 myocytes, TNF-induced activation of NF-kappaB inhibited SMD by suppressing MyoD mRNA at the posttranscriptional level. In contrast, in differentiated myotubes, TNF plus interferon-gamma (IFN-gamma) signaling was required for NF-kappaB-dependent down-regulation of MyoD and dysfunction of skeletal myofibers. MyoD mRNA was also down-regulated by TNF and IFN-gamma expression in mouse muscle in vivo. These data elucidate a possible mechanism that may underlie the skeletal muscle decay in cachexia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guttridge, D C -- Mayo, M W -- Madrid, L V -- Wang, C Y -- Baldwin, A S Jr -- AI35098/AI/NIAID NIH HHS/ -- CA72771/CA/NCI NIH HHS/ -- K01 CA78595/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2000 Sep 29;289(5488):2363-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lineberger Comprehensive Cancer Center, Curriculum in Genetics and Molecular Biology, Department of Biology, University of North Carolina, Chapel Hill, Mason Farm Road, Campus Box 7295, Chapel Hill, NC, 27599-7295, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11009425" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; CHO Cells ; Cachexia/*etiology/metabolism/pathology ; Cell Differentiation ; Cell Line ; Cricetinae ; DNA-Binding Proteins/genetics/metabolism ; Down-Regulation ; *I-kappa B Proteins ; Interferon-gamma/pharmacology ; Interleukins/pharmacology ; Mice ; Mice, Inbred Strains ; Mice, Nude ; Muscle, Skeletal/*cytology/*metabolism/pathology ; MyoD Protein/*genetics/metabolism ; NF-kappa B/genetics/*metabolism ; RNA, Messenger/genetics/metabolism ; Transcription Factor RelA ; Transcription, Genetic ; Transfection ; Tumor Necrosis Factor-alpha/*pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 62
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    Allosteric effects of Pit-1 DNA sites on long-term repression in cell type specification (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-11-10
    Beschreibung: Reciprocal gene activation and restriction during cell type differentiation from a common lineage is a hallmark of mammalian organogenesis. A key question, then, is whether a critical transcriptional activator of cell type-specific gene targets can also restrict expression of the same genes in other cell types. Here, we show that whereas the pituitary-specific POU domain factor Pit-1 activates growth hormone gene expression in one cell type, the somatotrope, it restricts its expression from a second cell type, the lactotrope. This distinction depends on a two-base pair spacing in accommodation of the bipartite POU domains on a conserved growth hormone promoter site. The allosteric effect on Pit-1, in combination with other DNA binding factors, results in the recruitment of a corepressor complex, including nuclear receptor corepressor N-CoR, which, unexpectedly, is required for active long-term repression of the growth hormone gene in lactotropes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scully, K M -- Jacobson, E M -- Jepsen, K -- Lunyak, V -- Viadiu, H -- Carriere, C -- Rose, D W -- Hooshmand, F -- Aggarwal, A K -- Rosenfeld, M G -- R01 DK18477/DK/NIDDK NIH HHS/ -- R01 DK54802/DK/NIDDK NIH HHS/ -- R01 GM49327/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Nov 10;290(5494):1127-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Endocrinology and Metabolism, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11073444" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Allosteric Regulation ; Animals ; Base Sequence ; Binding Sites ; Cell Line ; Conserved Sequence ; Crystallization ; DNA/*metabolism ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Female ; *Gene Expression Regulation ; Genes, Reporter ; Growth Hormone/*genetics ; Male ; Mice ; Mice, Transgenic ; Models, Molecular ; Molecular Sequence Data ; Nuclear Proteins/genetics/metabolism ; Nuclear Receptor Co-Repressor 1 ; Pituitary Gland/cytology/*metabolism ; Prolactin/*genetics ; Promoter Regions, Genetic ; Protein Conformation ; Protein Structure, Tertiary ; Rats ; Repressor Proteins/chemistry/genetics/*metabolism ; Transcription Factor Pit-1 ; Transcription Factors/chemistry/genetics/*metabolism ; Transcriptional Activation
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    Requirement for DARPP-32 in progesterone-facilitated sexual receptivity in female rats and mice (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-02-11
    Beschreibung: DARPP-32, a dopamine- and adenosine 3',5'-monophosphate (cAMP)-regulated phosphoprotein (32 kilodaltons in size), is an obligate intermediate in progesterone (P)-facilitated sexual receptivity in female rats and mice. The facilitative effect of P on sexual receptivity in female rats was blocked by antisense oligonucleotides to DARPP-32. Homozygous mice carrying a null mutation for the DARPP-32 gene exhibited minimal levels of P-facilitated sexual receptivity when compared to their wild-type littermates. P significantly increased hypothalamic cAMP levels and cAMP-dependent protein kinase activity. These increases were not inhibited by a D1 subclass dopamine receptor antagonist. P also enhanced phosphorylation of DARPP-32 on threonine 34 in the hypothalamus of mice. DARPP-32 activation is thus an obligatory step in progestin receptor regulation of sexual receptivity in rats and mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mani, S K -- Fienberg, A A -- O'Callaghan, J P -- Snyder, G L -- Allen, P B -- Dash, P K -- Moore, A N -- Mitchell, A J -- Bibb, J -- Greengard, P -- O'Malley, B W -- MH49662/MH/NIMH NIH HHS/ -- MH57442/MH/NIMH NIH HHS/ -- NS 35457/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 2000 Feb 11;287(5455):1053-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA. smani@bcm.tmc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10669419" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine/pharmacology ; Animals ; Cyclic AMP/metabolism ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Dopamine/pharmacology ; Dopamine Agonists/pharmacology ; Dopamine and cAMP-Regulated Phosphoprotein 32 ; Female ; Hypothalamus/metabolism ; Injections, Intraventricular ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; *Nerve Tissue Proteins ; Oligonucleotides, Antisense/pharmacology ; Phosphoproteins/genetics/*metabolism ; Phosphorylation ; Posture ; Progesterone/*pharmacology ; Proteins/genetics/metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, Progesterone/metabolism ; Serotonin/pharmacology ; Sexual Behavior, Animal/*drug effects ; Signal Transduction
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 64
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    Perspectives: signal transduction. Signals to move cells (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-02-26
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dekker, L V -- Segal, A W -- New York, N.Y. -- Science. 2000 Feb 11;287(5455):982-3, 985.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Molecular Medicine, University College London, London, UK. rmhalvd@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10691572" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD/metabolism ; Chemotaxis/*physiology ; Chemotaxis, Leukocyte/*physiology ; Enzyme Activation ; GTP Phosphohydrolases/metabolism ; Heterotrimeric GTP-Binding Proteins/metabolism ; Isoenzymes/metabolism ; Leukocytes/physiology ; Macrophages/physiology ; Mice ; Mice, Knockout ; Phosphatidylinositol 3-Kinases/*metabolism ; Phosphatidylinositol Phosphates/metabolism ; *Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-akt ; Receptors, Formyl Peptide ; Receptors, Immunologic/metabolism ; Receptors, Interleukin/metabolism ; Receptors, Interleukin-8A ; Receptors, Peptide/metabolism ; *Signal Transduction ; rac GTP-Binding Proteins/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 65
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    In silico mapping of mouse quantitative trait loci (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-02-28
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Darvasi, A -- New York, N.Y. -- Science. 2001 Dec 21;294(5551):2423.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Evolution Systematicsand Ecology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel. arield@cc.huji.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11865449" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Algorithms ; Animals ; Chromosome Mapping/*methods ; Genetic Variation ; Genotype ; Mice ; Mice, Inbred Strains ; Phenotype ; Polymorphism, Single Nucleotide ; *Quantitative Trait, Heritable
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 66
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    Medulloblastoma growth inhibition by hedgehog pathway blockade (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-08-31
    Beschreibung: Constitutive Hedgehog (Hh) pathway activity is associated with initiation of neoplasia, but its role in the continued growth of established tumors is unclear. Here, we investigate the therapeutic efficacy of the Hh pathway antagonist cyclopamine in preclinical models of medulloblastoma, the most common malignant brain tumor in children. Cyclopamine treatment of murine medulloblastoma cells blocked proliferation in vitro and induced changes in gene expression consistent with initiation of neuronal differentiation and loss of neuronal stem cell-like character. This compound also caused regression of murine tumor allografts in vivo and induced rapid death of cells from freshly resected human medulloblastomas, but not from other brain tumors, thus establishing a specific role for Hh pathway activity in medulloblastoma growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berman, David M -- Karhadkar, Sunil S -- Hallahan, Andrew R -- Pritchard, Joel I -- Eberhart, Charles G -- Watkins, D Neil -- Chen, James K -- Cooper, Michael K -- Taipale, Jussi -- Olson, James M -- Beachy, Philip A -- New York, N.Y. -- Science. 2002 Aug 30;297(5586):1559-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12202832" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antineoplastic Agents/*therapeutic use ; Bicuculline/*therapeutic use ; Cell Differentiation/drug effects ; Cell Division/drug effects ; Cerebellar Neoplasms/*drug therapy ; Disease Models, Animal ; Hedgehog Proteins ; Humans ; Medulloblastoma/*drug therapy ; Membrane Proteins/genetics ; Mice ; Mice, Nude ; Receptors, Cell Surface ; Signal Transduction/drug effects ; Trans-Activators/*antagonists & inhibitors/metabolism ; Tumor Cells, Cultured
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 67
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    Molecular hydrogen as an energy source for Helicobacter pylori (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-12-03
    Beschreibung: The gastric pathogen Helicobacter pylori is known to be able to use molecular hydrogen as a respiratory substrate when grown in the laboratory. We found that hydrogen is available in the gastric mucosa of mice and that its use greatly increased the stomach colonization by H. pylori. Hydrogenase activity in H. pylori is constitutive but increased fivefold upon incubation with hydrogen. Hydrogen concentrations measured in the stomachs of live mice were found to be 10 to 50 times as high as the H. pylori affinity for hydrogen. A hydrogenase mutant strain is much less efficient in its colonization of mice. Therefore, hydrogen present in animals as a consequence of normal colonic flora is an energy-yielding substrate that can facilitate the maintenance of a pathogenic bacterium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olson, Jonathan W -- Maier, Robert J -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1788-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, University of Georgia, Athens, GA 30602, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12459589" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Catechol 2,3-Dioxygenase ; Colon/metabolism/microbiology ; *Dioxygenases ; Energy Metabolism ; Fermentation ; Gastric Mucosa/*metabolism/*microbiology ; Gene Expression Regulation, Bacterial ; Genes, Reporter ; Helicobacter pylori/growth & development/*metabolism ; Hydrogen/*metabolism ; Hydrogenase/genetics/*metabolism ; Kinetics ; Mice ; Mutation ; Oxidation-Reduction ; Oxygenases/genetics/metabolism ; Transcription, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 68
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    An essential role of N-terminal arginylation in cardiovascular development (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-07-06
    Beschreibung: The enzymatic conjugation of arginine to the N-termini of proteins is a part of the ubiquitin-dependent N-end rule pathway of protein degradation. In mammals, three N-terminal residues-aspartate, glutamate, and cysteine-are substrates for arginylation. The mouse ATE1 gene encodes a family of Arg-tRNA-protein transferases (R-transferases) that mediate N-terminal arginylation. We constructed ATE1-lacking mouse strains and found that ATE1-/- embryos die with defects in heart development and in angiogenic remodeling of the early vascular plexus. Through biochemical analyses, we show that N-terminal cysteine, in contrast to N-terminal aspartate and glutamate, is oxidized before its arginylation by R-transferase, suggesting that the arginylation branch of the N-end rule pathway functions as an oxygen sensor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kwon, Yong Tae -- Kashina, Anna S -- Davydov, Ilia V -- Hu, Rong-Gui -- An, Jee Young -- Seo, Jai Wha -- Du, Fangyong -- Varshavsky, Alexander -- GM31530/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Jul 5;297(5578):96-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, 147-75, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12098698" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alkylation ; Aminoacyltransferases/*genetics/*metabolism ; Animals ; Aorta/embryology ; Arginine/*metabolism ; Aspartic Acid/metabolism ; Blood Vessels/*embryology ; Cell Line ; Cysteic Acid/metabolism ; Cysteine/metabolism ; Female ; Glutamic Acid/metabolism ; Heart/*embryology ; Heart Defects, Congenital/embryology ; Heart Septal Defects/embryology ; Hypoxia-Inducible Factor 1, alpha Subunit ; Male ; Mice ; Mice, Inbred C57BL ; Neovascularization, Physiologic ; Oxidation-Reduction ; Proteins/*metabolism ; Pulmonary Artery/embryology ; RGS Proteins/metabolism ; Recombinant Proteins/metabolism ; Sulfinic Acids/metabolism ; Transcription Factors/metabolism ; Transfection
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 69
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    MAP kinase phosphatase as a locus of flexibility in a mitogen-activated protein kinase signaling network (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-08-10
    Beschreibung: Intracellular signaling networks receive and process information to control cellular machines. The mitogen-activated protein kinase (MAPK) 1,2/protein kinase C (PKC) system is one such network that regulates many cellular machines, including the cell cycle machinery and autocrine/paracrine factor synthesizing machinery. We used a combination of computational analysis and experiments in mouse NIH-3T3 fibroblasts to understand the design principles of this controller network. We find that the growth factor-stimulated signaling network containing MAPK 1, 2/PKC can operate with one (monostable) or two (bistable) stable states. At low concentrations of MAPK phosphatase, the system exhibits bistable behavior, such that brief stimulus results in sustained MAPK activation. The MAPK-induced increase in the amounts of MAPK phosphatase eliminates the prolonged response capability and moves the network to a monostable state, in which it behaves as a proportional response system responding acutely to stimulus. Thus, the MAPK 1, 2/PKC controller network is flexibly designed, and MAPK phosphatase may be critical for this flexible response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bhalla, Upinder S -- Ram, Prahlad T -- Iyengar, Ravi -- CA-79134/CA/NCI NIH HHS/ -- CA-81050/CA/NCI NIH HHS/ -- GM-54508/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):1018-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Biological Sciences, Bangalore 560065 India. bhalla@ncbs.res.in〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12169734" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; Adaptation, Physiological ; Animals ; *Cell Cycle Proteins ; Computer Simulation ; Dose-Response Relationship, Drug ; Dual Specificity Phosphatase 1 ; *Feedback, Physiological ; Immediate-Early Proteins/*metabolism ; *MAP Kinase Signaling System ; Mathematics ; Mice ; Mitogen-Activated Protein Kinase 1/*metabolism ; Mitogen-Activated Protein Kinase 3 ; Mitogen-Activated Protein Kinases/*metabolism ; Models, Biological ; Phospholipases A/antagonists & inhibitors/metabolism ; Phosphoprotein Phosphatases/metabolism ; Phosphorylation ; Protein Kinase C/metabolism ; Protein Phosphatase 1 ; Protein Tyrosine Phosphatases/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 70
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    BRCA2 function in DNA binding and recombination from a BRCA2-DSS1-ssDNA structure (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-09-14
    Beschreibung: Mutations in the BRCA2 (breast cancer susceptibility gene 2) tumor suppressor lead to chromosomal instability due to defects in the repair of double-strand DNA breaks (DSBs) by homologous recombination, but BRCA2's role in this process has been unclear. Here, we present the 3.1 angstrom crystal structure of a approximately 90-kilodalton BRCA2 domain bound to DSS1, which reveals three oligonucleotide-binding (OB) folds and a helix-turn-helix (HTH) motif. We also (i) demonstrate that this BRCA2 domain binds single-stranded DNA, (ii) present its 3.5 angstrom structure bound to oligo(dT)9, (iii) provide data that implicate the HTH motif in dsDNA binding, and (iv) show that BRCA2 stimulates RAD51-mediated recombination in vitro. These findings establish that BRCA2 functions directly in homologous recombination and provide a structural and biochemical basis for understanding the loss of recombination-mediated DSB repair in BRCA2-associated cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Haijuan -- Jeffrey, Philip D -- Miller, Julie -- Kinnucan, Elspeth -- Sun, Yutong -- Thoma, Nicolas H -- Zheng, Ning -- Chen, Phang-Lang -- Lee, Wen-Hwa -- Pavletich, Nikola P -- New York, N.Y. -- Science. 2002 Sep 13;297(5588):1837-48.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Sloan-Kettering Division, Joan and Sanford I. Weill Graduate School of Medical Sciences, Cornell University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12228710" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; BRCA2 Protein/*chemistry/genetics/*metabolism ; Binding Sites ; Crystallography, X-Ray ; DNA/metabolism ; *DNA Repair ; DNA, Single-Stranded/*metabolism ; DNA-Binding Proteins/metabolism ; Genes, BRCA2 ; Helix-Turn-Helix Motifs ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Mice ; Molecular Sequence Data ; Mutation ; Proteasome Endopeptidase Complex ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Proteins/chemistry/*metabolism ; Rad51 Recombinase ; Rats ; *Recombination, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 71
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    Immunology. Plant a few cells, sprout a thymus (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-06-22
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2002 Jun 21;296(5576):2120-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12077376" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Cell Transplantation ; Epithelial Cells/cytology/transplantation ; Kidney ; Mice ; Mice, Nude ; Stem Cell Transplantation ; Stem Cells/*physiology ; T-Lymphocytes/cytology/*immunology ; Thymus Gland/*cytology/growth & development/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 72
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    Toll-like receptor 4-dependent activation of dendritic cells by beta-defensin 2 (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-11-02
    Beschreibung: beta-Defensins are small antimicrobial peptides of the innate immune system produced in response to microbial infection of mucosal tissue and skin. We demonstrate that murine beta-defensin 2 (mDF2beta) acts directly on immature dendritic cells as an endogenous ligand for Toll-like receptor 4 (TLR-4), inducing up-regulation of costimulatory molecules and dendritic cell maturation. These events, in turn, trigger robust, type 1 polarized adaptive immune responses in vivo, suggesting that mDF2beta may play an important role in immunosurveillance against pathogens and, possibly, self antigens or tumor antigens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Biragyn, Arya -- Ruffini, Pier Adelchi -- Leifer, Cynthia A -- Klyushnenkova, Elena -- Shakhov, Alexander -- Chertov, Oleg -- Shirakawa, Aiko K -- Farber, Joshua M -- Segal, David M -- Oppenheim, Joost J -- Kwak, Larry W -- N0L-CO-12400/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 Nov 1;298(5595):1025-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Transplantation and Immunology Branch, National Cancer Institute, Bethesda, MD 20892, USA. arya@mail.ncifcrf.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12411706" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, Neoplasm/immunology ; Cancer Vaccines/immunology ; Cell Line ; Cytokines/biosynthesis ; Dendritic Cells/*immunology ; *Drosophila Proteins ; Female ; Humans ; Interferon-alpha/physiology ; Ligands ; Lipopolysaccharides/immunology/pharmacology ; Lymphocyte Culture Test, Mixed ; Membrane Glycoproteins/genetics/*physiology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Neoplasms/immunology/therapy ; Receptors, CCR6 ; Receptors, Cell Surface/genetics/*physiology ; Receptors, Chemokine/metabolism ; Recombinant Fusion Proteins/pharmacology ; Signal Transduction ; Toll-Like Receptor 4 ; Toll-Like Receptors ; Transfection ; beta-Defensins/pharmacology/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    Lymphatic metastasis in the absence of functional intratumor lymphatics (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-04-27
    Beschreibung: Lymphatic metastasis contributes to mortality from solid tumors. Whether metastasizing cancer cells reach lymph nodes via intratumor lymphatic vessels is unknown. Here, we examine functional lymphatics associated with mouse tumors expressing normal or elevated levels of vascular endothelial growth factor-C (VEGF-C), a molecule that stimulates lymphangiogenesis. Although VEGF-C overexpression increased lymphatic surface area in the tumor margin and lymphatic metastasis, these tumors contained no functional lymphatics, as assessed by four independent functional assays and immunohistochemical staining. These findings suggest that the functional lymphatics in the tumor margin alone are sufficient for lymphatic metastasis and should be targeted therapeutically.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Padera, Timothy P -- Kadambi, Ananth -- di Tomaso, Emmanuelle -- Carreira, Carla Mouta -- Brown, Edward B -- Boucher, Yves -- Choi, Noah C -- Mathisen, Douglas -- Wain, John -- Mark, Eugene J -- Munn, Lance L -- Jain, Rakesh K -- R24-CA85140/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 Jun 7;296(5574):1883-6. Epub 2002 Apr 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉E. L. Steele Laboratory, Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, 100 Blossom Street, Boston, MA 02114, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11976409" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenocarcinoma/chemistry/pathology ; Animals ; Antigens, Surface/analysis ; Endothelial Growth Factors/metabolism ; Extracellular Space/physiology ; Fibrosarcoma/metabolism/*pathology/physiopathology/secondary ; Glycoproteins/analysis ; Humans ; Immunohistochemistry ; Lung Neoplasms/chemistry/pathology/physiopathology/secondary ; *Lymphatic Metastasis ; Lymphatic System/chemistry/*pathology/physiology ; Lymphography ; Melanoma, Experimental/metabolism/*pathology/physiopathology/secondary ; Mice ; Mice, Inbred C3H ; Mice, Nude ; Microscopy/methods ; Neoplasm Transplantation ; Neoplasms/metabolism/*pathology/physiopathology ; Pressure ; Tumor Cells, Cultured ; Vascular Endothelial Growth Factor C ; Vesicular Transport Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 74
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    Protein structure. Harmless proteins twist into troublemakers (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-04-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2002 Apr 5;296(5565):28-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11934996" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amyloid beta-Peptides/chemistry ; Animals ; Humans ; Mice ; Protein Conformation ; *Protein Folding ; *Protein Structure, Quaternary ; Proteins/*chemistry ; Rats
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 75
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    Effect of p53 status on tumor response to antiangiogenic therapy (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-02-23
    Beschreibung: The p53 tumor suppressor gene is inactivated in the majority of human cancers. Tumor cells deficient in p53 display a diminished rate of apoptosis under hypoxic conditions, a circumstance that might reduce their reliance on vascular supply, and hence their responsiveness to antiangiogenic therapy. Here, we report that mice bearing tumors derived from p53(-/-) HCT116 human colorectal cancer cells were less responsive to antiangiogenic combination therapy than mice bearing isogenic p53(+/+) tumors. Thus, although antiangiogenic therapy targets genetically stable endothelial cells in the tumor vasculature, genetic alterations that decrease the vascular dependence of tumor cells can influence the therapeutic response of tumors to this therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, Joanne L -- Rak, Janusz W -- Coomber, Brenda L -- Hicklin, Daniel J -- Kerbel, Robert S -- CA-41233/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 Feb 22;295(5559):1526-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sunnybrook and Women's College Health Sciences Centre, Molecular and Cellular Biology Research, Room S-218, 2075 Bayview Avenue, Toronto, Ontario, Canada M4N 3M5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11859195" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Angiogenesis Inhibitors/pharmacology/*therapeutic use ; Animals ; Antibodies/therapeutic use ; Antineoplastic Combined Chemotherapy Protocols/pharmacology/*therapeutic use ; Apoptosis ; *Cell Hypoxia ; Cell Survival ; Colorectal Neoplasms ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclins/genetics/metabolism ; Gene Deletion ; *Gene Silencing ; *Genes, p53 ; Humans ; In Situ Nick-End Labeling ; Mice ; Mice, SCID ; Neoplasm Transplantation ; Neoplasms, Experimental/blood supply/*drug therapy/*genetics/pathology ; Receptor Protein-Tyrosine Kinases/immunology ; Receptors, Growth Factor/immunology ; Receptors, Vascular Endothelial Growth Factor ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53/metabolism ; Vinblastine/therapeutic use
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 76
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    A pit stop at the ER (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-03-02
    Beschreibung: Although ligand activation of receptor signaling is well understood, less is known about how a cell switches off signaling by the activated receptor. In his Perspective, Gill discusses new work (Haj et al.) that visualizes one step in the process of deactivating a ligand-activated receptor tyrosine kinase--the dephosphorylation of the internalized receptor by a phosphatase in the endoplasmic reticulum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gill, Gordon N -- New York, N.Y. -- Science. 2002 Mar 1;295(5560):1654-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of California, San Diego, La Jolla, CA 92093-0650, USA. ggill@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11872824" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Membrane/enzymology ; Endocytosis ; Endoplasmic Reticulum/*enzymology ; Endosomes/enzymology/metabolism ; Energy Transfer ; Fluorescence ; Ligands ; Lysosomes/metabolism ; Mice ; Phosphatidylinositol 3-Kinases/metabolism ; Phosphorylation ; Protein Transport ; Protein Tyrosine Phosphatase, Non-Receptor Type 1 ; Protein Tyrosine Phosphatases/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-cbl ; Receptor Protein-Tyrosine Kinases/chemistry/*metabolism ; Receptor, Epidermal Growth Factor/chemistry/*metabolism ; Receptors, Platelet-Derived Growth Factor/chemistry/*metabolism ; Ubiquitin/metabolism ; *Ubiquitin-Protein Ligases
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 77
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    Female germ cell aneuploidy and embryo death in mice lacking the meiosis-specific protein SCP3 (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-11
    Beschreibung: Aneuploidy (trisomy or monosomy) is the leading genetic cause of pregnancy loss in humans and results from errors in meiotic chromosome segregation. Here, we show that the absence of synaptonemal complex protein 3 (SCP3) promotes aneuploidy in murine oocytes by inducing defective meiotic chromosome segregation. The abnormal oocyte karyotype is inherited by embryos, which die in utero at an early stage of development. In addition, embryo death in SCP3-deficient females increases with advancing maternal age. We found that SCP3 is required for chiasmata formation and for the structural integrity of meiotic chromosomes, suggesting that altered chromosomal structure triggers nondisjunction. SCP3 is thus linked to inherited aneuploidy in female germ cells and provides a model system for studying age-dependent degeneration in oocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yuan, Li -- Liu, Jian-Guo -- Hoja, Mary-Rose -- Wilbertz, Johannes -- Nordqvist, Katarina -- Hoog, Christer -- New York, N.Y. -- Science. 2002 May 10;296(5570):1115-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genomics and Bioinformatics and Department of Cell and Molecular Biology, Karolinska Institutet, SE-171 77 Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12004129" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aneuploidy ; Animals ; Chromosome Segregation ; Chromosomes/*physiology/ultrastructure ; Crossing Over, Genetic ; *Embryo Loss ; Female ; Karyotyping ; Litter Size ; Male ; Maternal Age ; *Meiosis ; Mice ; Mice, Inbred C57BL ; Mutation ; Nondisjunction, Genetic ; Nuclear Proteins/genetics/*physiology ; Oocytes/*physiology ; Pregnancy ; Recombination, Genetic ; Synaptonemal Complex/physiology/ultrastructure
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 78
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    A heat-sensitive TRP channel expressed in keratinocytes (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-23
    Beschreibung: Mechanical and thermal cues stimulate a specialized group of sensory neurons that terminate in the skin. Three members of the transient receptor potential (TRP) family of channels are expressed in subsets of these neurons and are activated at distinct physiological temperatures. Here, we describe the cloning and characterization of a novel thermosensitive TRP channel. TRPV3 has a unique threshold: It is activated at innocuous (warm) temperatures and shows an increased response at noxious temperatures. TRPV3 is specifically expressed in keratinocytes; hence, skin cells are capable of detecting heat via molecules similar to those in heat-sensing neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peier, Andrea M -- Reeve, Alison J -- Andersson, David A -- Moqrich, Aziz -- Earley, Taryn J -- Hergarden, Anne C -- Story, Gina M -- Colley, Sian -- Hogenesch, John B -- McIntyre, Peter -- Bevan, Stuart -- Patapoutian, Ardem -- New York, N.Y. -- Science. 2002 Jun 14;296(5575):2046-9. Epub 2002 May 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomics Institute of the Novartis Research Foundation, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016205" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Animals, Newborn ; Blotting, Northern ; CHO Cells ; Capsaicin/*analogs & derivatives/pharmacology ; *Cation Transport Proteins ; Cell Line ; Cells, Cultured ; Cloning, Molecular ; Cricetinae ; Epidermis/cytology/innervation/metabolism ; Ganglia, Spinal/metabolism ; *Hot Temperature ; Humans ; In Situ Hybridization ; Ion Channels/chemistry/genetics/*metabolism ; Keratinocytes/*metabolism ; Membrane Potentials ; Mice ; Molecular Sequence Data ; Nerve Endings/physiology ; Neurons/physiology ; Patch-Clamp Techniques ; RNA, Messenger/genetics/metabolism ; Ruthenium Red/pharmacology ; Signal Transduction ; Spinal Cord/metabolism ; TRPV Cation Channels ; Temperature
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 79
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    Abnormal vascular function and hypertension in mice deficient in estrogen receptor beta (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-01-19
    Beschreibung: Blood vessels express estrogen receptors, but their role in cardiovascular physiology is not well understood. We show that vascular smooth muscle cells and blood vessels from estrogen receptor beta (ERbeta)-deficient mice exhibit multiple functional abnormalities. In wild-type mouse blood vessels, estrogen attenuates vasoconstriction by an ERbeta-mediated increase in inducible nitric oxide synthase expression. In contrast, estrogen augments vasoconstriction in blood vessels from ERbeta-deficient mice. Vascular smooth muscle cells isolated from ERbeta-deficient mice show multiple abnormalities of ion channel function. Furthermore, ERbeta-deficient mice develop sustained systolic and diastolic hypertension as they age. These data support an essential role for ERbeta in the regulation of vascular function and blood pressure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhu, Yan -- Bian, Zhao -- Lu, Ping -- Karas, Richard H -- Bao, Lin -- Cox, Daniel -- Hodgin, Jeffrey -- Shaul, Philip W -- Thoren, Peter -- Smithies, Oliver -- Gustafsson, Jan-Ake -- Mendelsohn, Michael E -- GM20069/GM/NIGMS NIH HHS/ -- HD30276/HD/NICHD NIH HHS/ -- HL53546/HL/NHLBI NIH HHS/ -- HL56235/HL/NHLBI NIH HHS/ -- P50 HL63494/HL/NHLBI NIH HHS/ -- R01 HL55309/HL/NHLBI NIH HHS/ -- R01 HL56069/HL/NHLBI NIH HHS/ -- R01 HL61298/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2002 Jan 18;295(5554):505-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Cardiology Research Institute, New England Medical Center and Department of Medicine, Tufts University School of Medicine, Boston, MA 02111, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11799247" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenergic alpha-Agonists/pharmacology ; Animals ; Aorta ; Blood Pressure ; Cells, Cultured ; Estradiol/*analogs & derivatives/pharmacology ; Estrogen Antagonists/pharmacology ; Estrogen Receptor alpha ; Estrogen Receptor beta ; Guanidines/pharmacology ; Humans ; Hypertension/*physiopathology ; In Vitro Techniques ; Male ; Mice ; Mice, Knockout ; Muscle, Smooth, Vascular/*physiology ; Nitric Oxide Synthase/genetics/metabolism ; Nitric Oxide Synthase Type II ; Nitroarginine/pharmacology ; Patch-Clamp Techniques ; Phenylephrine/pharmacology ; Potassium Channels/metabolism ; Receptors, Estrogen/genetics/*physiology ; *Vasoconstriction/drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 80
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    Neurofibromas in NF1: Schwann cell origin and role of tumor environment (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-04
    Beschreibung: Neurofibromatosis type 1 (NF1) is one of the most prevalent dominantly inherited genetic diseases of the nervous system. NF1 encodes a tumor suppressor whose functional loss results in the development of benign neurofibromas that can progress to malignancy. Neurofibromas are complex tumors composed of axonal processes, Schwann cells, fibroblasts, perineurial cells, and mast cells. Through use of a conditional (cre/lox) allele, we show that loss of NF1 in the Schwann cell lineage is sufficient to generate tumors. In addition, complete NF1-mediated tumorigenicity requires both a loss of NF1 in cells destined to become neoplastic as well as heterozygosity in non-neoplastic cells. The requirement for a permissive haploinsufficient environment to allow tumorigenesis may have therapeutic implications for NF1 and other familial cancers.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3024710/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3024710/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhu, Yuan -- Ghosh, Pritam -- Charnay, Patrick -- Burns, Dennis K -- Parada, Luis F -- R01 NS034296/NS/NINDS NIH HHS/ -- R01 NS034296-06/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2002 May 3;296(5569):920-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Developmental Biology, Department of Pathology, University of Texas Southwestern Medical Center, 6000 Harry Hines Boulevard, Dallas, TX 75390-9133, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11988578" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Animals ; Axons/ultrastructure ; Cell Lineage ; Cell Transformation, Neoplastic ; Cells, Cultured ; Cranial Nerves/pathology ; Culture Techniques ; Female ; *Genes, Neurofibromatosis 1 ; Genotype ; Heterozygote ; Hyperplasia ; Loss of Heterozygosity ; Male ; Mast Cells/chemistry/pathology ; Mice ; Mice, Transgenic ; Neurofibroma/genetics/*pathology ; Neurofibromatosis 1/genetics/*pathology ; Peripheral Nerves/pathology ; Schwann Cells/chemistry/*pathology ; Spinal Nerves/pathology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 81
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    Enhanced tumor formation in mice heterozygous for Blm mutation (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-09-21
    Beschreibung: Persons with the autosomal recessive disorder Bloom syndrome are predisposed to cancers of many types due to loss-of-function mutations in the BLM gene, which encodes a recQ-like helicase. Here we show that mice heterozygous for a targeted null mutation of Blm, the murine homolog of BLM, develop lymphoma earlier than wild-type littermates in response to challenge with murine leukemia virus and develop twice the number of intestinal tumors when crossed with mice carrying a mutation in the Apc tumor suppressor. These observations indicate that Blm is a modifier of tumor formation in the mouse and that Blm haploinsufficiency is associated with tumor predisposition, a finding with important implications for cancer risk in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goss, Kathleen Heppner -- Risinger, Mary A -- Kordich, Jennifer J -- Sanz, Maureen M -- Straughen, Joel E -- Slovek, Lisa E -- Capobianco, Anthony J -- German, James -- Boivin, Gregory P -- Groden, Joanna -- CA63507/CA/NCI NIH HHS/ -- CA84291/CA/NCI NIH HHS/ -- CA88460/CA/NCI NIH HHS/ -- ES06096/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 2002 Sep 20;297(5589):2051-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Department of Molecular Genetics, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12242442" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenoma/genetics/pathology ; Adenosine Triphosphatases/*genetics ; Alleles ; Animals ; Bloom Syndrome/*genetics ; Cells, Cultured ; Crosses, Genetic ; DNA Helicases/*genetics ; Female ; Gene Targeting ; Genes, APC ; *Genetic Predisposition to Disease ; *Heterozygote ; Humans ; Intestinal Neoplasms/*genetics/pathology ; Leukemia Virus, Murine ; Loss of Heterozygosity ; Lymphoma, T-Cell/*genetics/virology ; Male ; Mice ; Mice, Inbred C57BL ; Mutation ; RecQ Helicases ; Sister Chromatid Exchange
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 82
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    Meiotic arrest in the mouse follicle maintained by a Gs protein in the oocyte (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-08-24
    Beschreibung: The mammalian ovarian follicle consists of a multilayered complex of somatic cells that surround the oocyte. A signal from the follicle cells keeps the oocyte cell cycle arrested at prophase of meiosis I until luteinizing hormone from the pituitary acts on the follicle cells to release the arrest, causing meiosis to continue. Here we show that meiotic arrest can be released in mice by microinjecting the oocyte within the follicle with an antibody that inhibits the stimulatory heterotrimeric GTP-binding protein Gs. This indicates that Gs activity in the oocyte is required to maintain meiotic arrest within the ovarian follicle and suggests that the follicle may keep the cell cycle arrested by activating Gs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mehlmann, Lisa M -- Jones, Teresa L Z -- Jaffe, Laurinda A -- New York, N.Y. -- Science. 2002 Aug 23;297(5585):1343-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Connecticut Health Center, Farmington, CT 06032, USA. lmehlman@neuron.uchc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12193786" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies/immunology ; Cells, Cultured ; Cyclic AMP/metabolism ; Female ; GTP-Binding Protein alpha Subunits, Gi-Go/immunology/physiology ; GTP-Binding Protein alpha Subunits, Gs/antagonists & ; inhibitors/immunology/*physiology ; Hypoxanthine/pharmacology ; *Meiosis ; Mice ; Oocytes/drug effects/metabolism/*physiology ; Ovarian Follicle/*physiology ; Signal Transduction
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 83
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    A role for CD40 expression on CD8+ T cells in the generation of CD8+ T cell memory (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-09-21
    Beschreibung: The delivery of CD4 help to CD8+ T cell responses requires interactions between CD40 and CD40 ligand and is thought to occur through antigen-presenting cell (APC) activation. Here we show that generation of memory CD8+ T cells displaying an enhanced capacity for cell division and cytokine secretion required CD4 help but not CD40 expression by the APCs. Activated CD4+ and CD8+ T cells expressed CD40; and in the absence of this protein, CD8+ T cells were unable to differentiate into memory cells or receive CD4 help. These results suggest that, like B cells, CD8+ T cells receive CD4 help directly through CD40 and that this interaction is fundamental for CD8+ T cell memory generation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bourgeois, Christine -- Rocha, Benedita -- Tanchot, Corinne -- New York, N.Y. -- Science. 2002 Sep 20;297(5589):2060-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM U345, Institut Necker, 156 Rue de Vaugirard, F-75730 Paris Cedex 15, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12242444" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigen Presentation ; Antigen-Presenting Cells/immunology ; Antigens/immunology ; Antigens, CD40/genetics/*immunology/*metabolism ; CD4-Positive T-Lymphocytes/immunology ; CD40 Ligand/metabolism ; CD8-Positive T-Lymphocytes/cytology/*immunology/metabolism ; Cell Differentiation ; Cell Division ; Female ; *Immunologic Memory ; Interferon-gamma/secretion ; Interleukin-2/secretion ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; RNA, Messenger/genetics/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; T-Lymphocyte Subsets/cytology/*immunology/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 84
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    Induction of cachexia in mice by systemically administered myostatin (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-25
    Beschreibung: Mice and cattle with genetic deficiencies in myostatin exhibit dramatic increases in skeletal muscle mass, suggesting that myostatin normally suppresses muscle growth. Whether this increased muscling results from prenatal or postnatal lack of myostatin activity is unknown. Here we show that myostatin circulates in the blood of adult mice in a latent form that can be activated by acid treatment. Systemic overexpression of myostatin in adult mice was found to induce profound muscle and fat loss analogous to that seen in human cachexia syndromes. These data indicate that myostatin acts systemically in adult animals and may be a useful pharmacologic target in clinical settings such as cachexia, where muscle growth is desired.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmers, Teresa A -- Davies, Monique V -- Koniaris, Leonidas G -- Haynes, Paul -- Esquela, Aurora F -- Tomkinson, Kathy N -- McPherron, Alexandra C -- Wolfman, Neil M -- Lee, Se-Jin -- 5 T32 CA09139/CA/NCI NIH HHS/ -- R01 CA88866/CA/NCI NIH HHS/ -- R01 HD35887/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2002 May 24;296(5572):1486-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Genetics, Johns Hopkins School of Medicine, 725 North Wolfe Street, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12029139" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; Activins/administration & dosage/pharmacology ; Adipose Tissue/anatomy & histology/pathology ; Animals ; Body Weight ; CHO Cells ; Cachexia/*etiology/metabolism/pathology ; Cricetinae ; Eating ; Female ; Follistatin ; Liver/anatomy & histology/pathology ; Mice ; Mice, Nude ; Muscle Fibers, Skeletal/cytology/pathology ; Muscle, Skeletal/*anatomy & histology/pathology ; Myostatin ; Organ Size ; Peptide Fragments/administration & dosage/pharmacology ; Recombinant Proteins/administration & dosage ; Transforming Growth Factor beta/administration & dosage/blood/*physiology ; Wasting Syndrome/etiology/metabolism/pathology ; Weight Loss
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 85
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    Premature aging in mice deficient in DNA repair and transcription (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-04-16
    Beschreibung: One of the factors postulated to drive the aging process is the accumulation of DNA damage. Here, we provide strong support for this hypothesis by describing studies of mice with a mutation in XPD, a gene encoding a DNA helicase that functions in both repair and transcription and that is mutated in the human disorder trichothiodystrophy (TTD). TTD mice were found to exhibit many symptoms of premature aging, including osteoporosis and kyphosis, osteosclerosis, early greying, cachexia, infertility, and reduced life-span. TTD mice carrying an additional mutation in XPA, which enhances the DNA repair defect, showed a greatly accelerated aging phenotype, which correlated with an increased cellular sensitivity to oxidative DNA damage. We hypothesize that aging in TTD mice is caused by unrepaired DNA damage that compromises transcription, leading to functional inactivation of critical genes and enhanced apoptosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Boer, Jan -- Andressoo, Jaan Olle -- de Wit, Jan -- Huijmans, Jan -- Beems, Rudolph B -- van Steeg, Harry -- Weeda, Geert -- van der Horst, Gijsbertus T J -- van Leeuwen, Wibeke -- Themmen, Axel P N -- Meradji, Morteza -- Hoeijmakers, Jan H J -- AG 17242-02/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2002 May 17;296(5571):1276-9. Epub 2002 Apr 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Genetics Center, Department of Cell Biology and Genetics, Center for Biomedical Genetics, Erasmus University, 3000 DR Rotterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11950998" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aging ; Aging, Premature/*etiology ; Animals ; Apoptosis ; Bone Density ; Cachexia/etiology ; Crosses, Genetic ; *DNA Damage ; DNA Helicases/genetics/*physiology ; *DNA Repair ; DNA-Binding Proteins/genetics/physiology ; Female ; Fertility ; Gene Targeting ; Growth Disorders/etiology/genetics ; Hair Diseases/genetics ; Kyphosis/etiology/genetics/pathology ; Male ; Mice ; Mutation ; Oxidative Stress ; Phenotype ; Point Mutation ; Proteins/genetics/*physiology ; RNA-Binding Proteins/genetics/physiology ; *Transcription Factors ; Transcription, Genetic ; Xeroderma Pigmentosum Group A Protein ; Xeroderma Pigmentosum Group D Protein
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 86
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    Evolution of developmental diversity. Evo-devo devotees eye ocular origins and more (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-11
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2002 May 10;296(5570):1010-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12004102" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Biological Evolution ; Cartilage/growth & development/metabolism ; Chloroplasts/physiology ; Chondrocytes/physiology ; *Developmental Biology ; *Diet ; Dinoflagellida/genetics/physiology ; *Eye ; Eye Proteins ; Folic Acid/administration & dosage ; Homeodomain Proteins/genetics/physiology ; Humans ; Light ; Mice ; Mice, Transgenic ; *Mutation ; Paired Box Transcription Factors ; Planarians/genetics/physiology ; Regeneration ; Repressor Proteins
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 87
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    Infectious disease. New culprit emerges in river blindness (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-03-09
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2002 Mar 8;295(5561):1809-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11884722" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anti-Bacterial Agents/therapeutic use ; Blindness/etiology ; Eye/immunology/parasitology/*pathology ; Female ; Helminth Proteins/physiology ; Humans ; Keratitis ; Mice ; Microfilaria/immunology/physiology ; Onchocerca volvulus/growth & development/immunology/*microbiology/pathogenicity ; Onchocerciasis, Ocular/drug therapy/*immunology/*microbiology/parasitology ; Wolbachia/immunology/*pathogenicity/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 88
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    Imaging sites of receptor dephosphorylation by PTP1B on the surface of the endoplasmic reticulum (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-03-02
    Beschreibung: When bound by extracellular ligands, receptor tyrosine kinases (RTKs) on the cell surface transmit critical signals to the cell interior. Although signal termination is less well understood, protein tyrosine phosphatase-1B (PTP1B) is implicated in the dephosphorylation and inactivation of several RTKs. However, PTP1B resides on the cytoplasmic surface of the endoplasmic reticulum (ER), so how and when it accesses RTKs has been unclear. Using fluorescence resonance energy transfer (FRET) methods, we monitored interactions between the epidermal- and platelet-derived growth factor receptors and PTP1B. PTP1B-catalyzed dephosphorylation required endocytosis of the receptors and occurred at specific sites on the surface of the ER. Most of the RTKs activated at the cell surface showed interaction with PTP1B after internalization, establishing that RTK activation and inactivation are spatially and temporally partitioned within cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haj, Fawaz G -- Verveer, Peter J -- Squire, Anthony -- Neel, Benjamin G -- Bastiaens, Philippe I H -- R01 CA49152/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 Mar 1;295(5560):1708-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Biology Program, Division of Hematology-Oncology, Department of Medicine, Beth Israel-Deaconess Medical Center, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11872838" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Substitution ; Animals ; Catalytic Domain ; Cell Membrane/enzymology ; Cells, Cultured ; *Endocytosis ; Endoplasmic Reticulum/*enzymology ; Energy Transfer ; Epidermal Growth Factor/metabolism/pharmacology ; Fluorescence ; Mice ; Microscopy, Confocal ; Microscopy, Fluorescence ; Phosphorylation ; Platelet-Derived Growth Factor/metabolism/pharmacology ; Protein Transport ; Protein Tyrosine Phosphatase, Non-Receptor Type 1 ; Protein Tyrosine Phosphatases/chemistry/genetics/*metabolism ; Receptor, Epidermal Growth Factor/*metabolism ; Receptors, Platelet-Derived Growth Factor/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 89
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    Direct link between mhc polymorphism, T cell avidity, and diversity in immune defense (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-12-03
    Beschreibung: Major histocompatibility complex (mhc)-encoded molecules govern immune responses by presenting antigenic peptides to T cells. The extensive polymorphism of genes encoding these molecules is believed to enhance immune defense by broadening the array of antigenic peptides available for T cell recognition, but direct evidence supporting the importance of this mechanism in combating pathogens is limited. Here we link mhc polymorphism-driven diversification of the cytotoxic T lymphocyte (CTL) repertoire to the generation of high-avidity, protective antiviral T cells and to superior antiviral defense. Thus, much of the beneficial effect of the mhc polymorphism in immune defense may be due to its critical influence on the properties of the selected CTL repertoire.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Messaoudi, Ilhem -- Guevara Patino, Jose A -- Dyall, Ruben -- LeMaoult, Joel -- Nikolich-Zugich, Janko -- CA-86803/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1797-800.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine and Gene Therapy Institute and the Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12459592" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adoptive Transfer ; Animals ; Complementarity Determining Regions ; Cytotoxicity, Immunologic ; Female ; *Genes, MHC Class I ; H-2 Antigens/genetics/*immunology ; Herpes Simplex/*immunology ; Herpesvirus 1, Human/*immunology ; Immunity, Innate ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; *Polymorphism, Genetic ; Receptors, Antigen, T-Cell, alpha-beta/immunology ; T-Lymphocytes, Cytotoxic/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 90
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    Induction of T helper type 2 immunity by a point mutation in the LAT adaptor (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-06-18
    Beschreibung: The transmembrane protein LAT (linker for activation of T cells) couples the T cell receptor (TCR) to downstream signaling effectors. Mice homozygous for a mutation of a single LAT tyrosine residue showed impeded T cell development. However, later they accumulated polyclonal helper T (TH) cells that chronically produced type 2 cytokines in large amounts. This exaggerated TH2 differentiation caused tissue eosinophilia and massive maturation of plasma cells secreting to immunoglobulins of the E and G1 isotypes. This paradoxical phenotype establishes an unanticipated inhibitory function for LAT that is critical for the differentiation and homeostasis of TH cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aguado, Enrique -- Richelme, Sylvie -- Nunez-Cruz, Selene -- Miazek, Arkadiusz -- Mura, Anne-Marie -- Richelme, Mireille -- Guo, Xiao-Jun -- Sainty, Danielle -- He, Hai-Tao -- Malissen, Bernard -- Malissen, Marie -- New York, N.Y. -- Science. 2002 Jun 14;296(5575):2036-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre d'Immunologie de Marseille-Luminy, INSERM- and CNRS-Universite de la Mediterranee, Parc Scientifique de Luminy, 13288 Marseille Cedex 9, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12065839" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Adaptor Proteins, Signal Transducing ; Animals ; Antigens, CD5/analysis/metabolism ; B-Lymphocytes/immunology/physiology ; CD4-Positive T-Lymphocytes/immunology/physiology ; CD8-Positive T-Lymphocytes/immunology/physiology ; Carrier Proteins/*genetics/*physiology ; Cell Cycle ; Cell Differentiation ; Eosinophilia ; Eosinophils/physiology ; Histocompatibility Antigens Class II/immunology ; Immunoglobulin E/blood ; Immunoglobulin G/blood ; Interferon-gamma/genetics/metabolism ; Interleukins/genetics/metabolism ; Leukocyte Count ; Lymphocyte Activation ; Lymphoid Tissue/cytology/immunology ; *Membrane Proteins ; Mice ; Mice, Inbred BALB C ; Phenotype ; Phosphoproteins/*genetics/*physiology ; *Point Mutation ; Receptors, Antigen, T-Cell/analysis ; Signal Transduction ; T-Lymphocyte Subsets/immunology/physiology ; Th2 Cells/*immunology/physiology ; Thymus Gland/cytology/immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 91
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    Cooperation of GGAs and AP-1 in packaging MPRs at the trans-Golgi network (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-09-07
    Beschreibung: The Golgi-localized, gamma-ear-containing, adenosine diphosphate ribosylation factor-binding proteins (GGAs) are multidomain proteins that bind mannose 6-phosphate receptors (MPRs) in the Golgi and have an essential role in lysosomal enzyme sorting. Here the GGAs and the coat protein adaptor protein-1 (AP-1) were shown to colocalize in clathrin-coated buds of the trans-Golgi networks of mouse L cells and human HeLa cells. Binding studies revealed a direct interaction between the hinge domains of the GGAs and the gamma-ear domain of AP-1. Further, AP-1 contained bound casein kinase-2 that phosphorylated GGA1 and GGA3, thereby causing autoinhibition. This could induce the directed transfer of the MPRs from GGAs to AP-1. MPRs that are defective in binding to GGAs are poorly incorporated into AP-1-containing clathrin-coated vesicles. Thus, the GGAs and AP-1 interact to package MPRs into AP-1-containing coated vesicles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doray, Balraj -- Ghosh, Pradipta -- Griffith, Janice -- Geuze, Hans J -- Kornfeld, Stuart -- R01 CA-08759/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 Sep 6;297(5587):1700-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12215646" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ADP-Ribosylation Factors/*metabolism ; Adaptor Proteins, Vesicular Transport ; Animals ; Biological Transport ; Carrier Proteins/*metabolism ; Cattle ; Cell Line ; Clathrin-Coated Vesicles/metabolism ; HeLa Cells ; Humans ; L Cells (Cell Line) ; Membrane Proteins/*metabolism ; Mice ; Mutation ; Phosphorylation ; Protein Binding ; Receptor, IGF Type 2/genetics/*metabolism ; Recombinant Proteins/metabolism ; trans-Golgi Network/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 92
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    Development. Missized mutants help identify organ tailors (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-07-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, Gretchen -- New York, N.Y. -- Science. 2002 Jul 19;297(5580):328.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12130764" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Evolution ; Cell Count ; Cell Division ; Cells, Cultured ; Cerebral Cortex/cytology/*embryology ; Cytoskeletal Proteins/*genetics/physiology ; Gene Expression Profiling ; Gene Expression Regulation, Developmental ; Homeodomain Proteins/*genetics/physiology ; Humans ; Mice ; Mice, Transgenic ; Mutation ; Neurons/cytology/physiology ; Pituitary Gland/*cytology/growth & development ; Retina/*cytology/growth & development ; Stem Cells/cytology/*physiology ; Trans-Activators/*genetics/physiology ; beta Catenin
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 93
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    Generation of live young from xenografted mouse ovaries (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-09-28
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Snow, Melanie -- Cox, Shae-Lee -- Jenkin, Graham -- Trounson, Alan -- Shaw, Jillian -- New York, N.Y. -- Science. 2002 Sep 27;297(5590):2227.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Monash University, Victoria, Australia, 3800.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12351780" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Embryo Loss ; Embryo Transfer ; Embryonic and Fetal Development ; Female ; Fertility ; Fertilization in Vitro ; Gonadotropins, Equine/administration & dosage ; Male ; Mice ; Mice, Inbred Strains ; Mice, Nude ; Oocytes/*physiology ; Ovariectomy ; Ovary/*transplantation ; Pregnancy ; Pregnancy Outcome ; Rats ; *Reproductive Techniques, Assisted ; *Transplantation, Heterologous
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 94
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    A distinct signaling pathway used by the IgG-containing B cell antigen receptor (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-12-21
    Beschreibung: The immunoglobulin G (IgG)-containing B lymphocyte antigen receptor (IgG-BCR) transmits a signal distinct from that of IgM-BCR or IgD-BCR, although all three use the same signal-transducing component, Igalpha/Igbeta. Here we demonstrate that the inhibitory coreceptor CD22 down-modulates signaling through IgM-BCR and IgD-BCR, but not that through IgG-BCR, because of the IgG cytoplasmic tail, which prevents CD22 phosphorylation. These results suggest that the cytoplasmic tail of IgG specifically enhances IgG-BCR signaling by preventing CD22-mediated signal inhibition. Enhanced signaling through IgG-BCR may be involved in efficient IgG production, which is crucial for immunity to pathogens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wakabayashi, Chisato -- Adachi, Takahiro -- Wienands, Jurgen -- Tsubata, Takeshi -- New York, N.Y. -- Science. 2002 Dec 20;298(5602):2392-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University, 113-8510 Tokyo, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12493916" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD/metabolism ; Antigens, Differentiation, B-Lymphocyte/metabolism ; B-Lymphocytes/immunology/metabolism ; Calcium/metabolism ; Calcium Signaling ; *Cell Adhesion Molecules ; Cells, Cultured ; Immunoglobulin D/immunology/metabolism ; Immunoglobulin G/chemistry/immunology/*metabolism ; Intracellular Signaling Peptides and Proteins ; Lectins/metabolism ; Mice ; Mitogen-Activated Protein Kinase 1/metabolism ; Mitogen-Activated Protein Kinase 3 ; Mitogen-Activated Protein Kinases/metabolism ; Phosphorylation ; Protein Tyrosine Phosphatase, Non-Receptor Type 6 ; Protein Tyrosine Phosphatases/metabolism ; Receptors, Antigen, B-Cell/chemistry/immunology/*metabolism ; Sialic Acid Binding Ig-like Lectin 2 ; *Signal Transduction ; Transfection ; Tumor Cells, Cultured
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 95
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    Two-photon imaging of lymphocyte motility and antigen response in intact lymph node (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-23
    Beschreibung: Lymphocyte motility is vital for trafficking within lymphoid organs and for initiating contact with antigen-presenting cells. Visualization of these processes has previously been limited to in vitro systems. We describe the use of two-photon laser microscopy to image the dynamic behavior of individual living lymphocytes deep within intact lymph nodes. In their native environment, T cells achieved peak velocities of more than 25 micrometers per minute, displaying a motility coefficient that is five to six times that of B cells. Antigenic challenge changed T cell trajectories from random walks to "swarms" and stable clusters. Real-time two-photon imaging reveals lymphocyte behaviors that are fundamental to the initiation of the immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Mark J -- Wei, Sindy H -- Parker, Ian -- Cahalan, Michael D -- GM-41514/GM/NIGMS NIH HHS/ -- GM-48071/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Jun 7;296(5574):1869-73. Epub 2002 May 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016203" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adoptive Transfer ; Animals ; Antigen-Presenting Cells/immunology/physiology ; Antigens/*immunology ; B-Lymphocytes/cytology/immunology/physiology ; Cell Division ; Cell Movement ; Cell Size ; Fluoresceins ; Fluorescent Dyes ; Image Processing, Computer-Assisted ; Lasers ; Lymph Nodes/cytology/*immunology ; *Lymphocyte Activation ; Mice ; Mice, Inbred BALB C ; Microscopy/methods ; Motion Pictures as Topic ; Photons ; Rhodamines ; Succinimides ; T-Lymphocytes/cytology/immunology/*physiology ; Temperature
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 96
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    Axonal self-destruction and neurodegeneration (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-05-04
    Beschreibung: Neurons seem to have at least two self-destruct programs. Like other cell types, they have an intracellular death program for undergoing apoptosis when they are injured, infected, or not needed. In addition, they apparently have a second, molecularly distinct self-destruct program in their axon. This program is activated when the axon is severed and leads to the rapid degeneration of the isolated part of the cut axon. Do neurons also use this second program to prune their axonal tree during development and to conserve resources in response to chronic insults?〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raff, Martin C -- Whitmore, Alan V -- Finn, John T -- New York, N.Y. -- Science. 2002 May 3;296(5569):868-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Laboratory for Molecular Cell Biology and Cell Biology Unit and the Biology Department, University College London, London WC1E 6BT, UK. m.raff@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11988563" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Apoptosis ; Axons/*physiology ; Humans ; Mice ; Mice, Mutant Strains ; Motor Neuron Disease/pathology/physiopathology ; *Nerve Degeneration ; Neurodegenerative Diseases/pathology/*physiopathology ; Peripheral Nervous System Diseases/pathology/physiopathology ; *Wallerian Degeneration/genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    Stem cell research. Studies cast doubt on plasticity of adult cells (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-03-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, Gretchen -- New York, N.Y. -- Science. 2002 Mar 15;295(5562):1989-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11896242" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Culture Techniques ; *Cell Differentiation ; *Cell Fusion ; Cell Lineage ; Cells, Cultured ; Chromosome Aberrations ; Embryo, Mammalian/cytology ; Hybrid Cells/*physiology ; Mice ; Polyploidy ; Stem Cells/cytology/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    Intra- and interspecific variation in primate gene expression patterns (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2002-04-16
    Beschreibung: Although humans and their closest evolutionary relatives, the chimpanzees, are 98.7% identical in their genomic DNA sequences, they differ in many morphological, behavioral, and cognitive aspects. The underlying genetic basis of many of these differences may be altered gene expression. We have compared the transcriptome in blood leukocytes, liver, and brain of humans, chimpanzees, orangutans, and macaques using microarrays, as well as protein expression patterns of humans and chimpanzees using two-dimensional gel electrophoresis. We also studied three mouse species that are approximately as related to each other as are humans, chimpanzees, and orangutans. We identified species-specific gene expression patterns indicating that changes in protein and gene expression have been particularly pronounced in the human brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enard, Wolfgang -- Khaitovich, Philipp -- Klose, Joachim -- Zollner, Sebastian -- Heissig, Florian -- Giavalisco, Patrick -- Nieselt-Struwe, Kay -- Muchmore, Elaine -- Varki, Ajit -- Ravid, Rivka -- Doxiadis, Gaby M -- Bontrop, Ronald E -- Paabo, Svante -- New York, N.Y. -- Science. 2002 Apr 12;296(5566):340-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institute for Evolutionary Anthropology, Inselstrasse 22, D-04103 Leipzig, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11951044" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Evolution ; Brain/*metabolism ; DNA, Complementary ; Female ; *Gene Expression ; Gene Expression Profiling ; Haplorhini/*genetics ; Hominidae/genetics ; Humans ; Leukocytes/*metabolism ; Liver/*metabolism ; Macaca mulatta/genetics ; Male ; Mice ; Muridae/genetics ; Oligonucleotide Array Sequence Analysis ; Organ Specificity ; Pan troglodytes/genetics ; Pongo pygmaeus/genetics ; Proteins/genetics/metabolism ; RNA, Messenger/genetics/metabolism ; Species Specificity
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    Enhanced morphine analgesia in mice lacking beta-arrestin 2 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-05
    Beschreibung: The ability of morphine to alleviate pain is mediated through a heterotrimeric guanine nucleotide binding protein (G protein)-coupled heptahelical receptor (GPCR), the mu opioid receptor (muOR). The efficiency of GPCR signaling is tightly regulated and ultimately limited by the coordinated phosphorylation of the receptors by specific GPCR kinases and the subsequent interaction of the phosphorylated receptors with beta-arrestin 1 and beta-arrestin 2. Functional deletion of the beta-arrestin 2 gene in mice resulted in remarkable potentiation and prolongation of the analgesic effect of morphine, suggesting that muOR desensitization was impaired. These results provide evidence in vivo for the physiological importance of beta-arrestin 2 in regulating the function of a specific GPCR, the muOR. Moreover, they suggest that inhibition of beta-arrestin 2 function might lead to enhanced analgesic effectiveness of morphine and provide potential new avenues for the study and treatment of pain, narcotic tolerance, and dependence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bohn, L M -- Lefkowitz, R J -- Gainetdinov, R R -- Peppel, K -- Caron, M G -- Lin, F T -- F32 DA006023/DA/NIDA NIH HHS/ -- HL16037/HL/NHLBI NIH HHS/ -- NS 19576/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2495-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute Laboratories, Departments of Cell Biology and Medicine, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10617462" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Analgesia ; Analgesics, Opioid/administration & dosage/metabolism/*pharmacology ; Animals ; Arrestins/genetics/*physiology ; Binding Sites ; Body Temperature/drug effects ; Brain/metabolism ; Enkephalin, Ala(2)-MePhe(4)-Gly(5)-/pharmacology ; GTP-Binding Proteins/metabolism ; Guanosine 5'-O-(3-Thiotriphosphate)/metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Morphine/administration & dosage/metabolism/*pharmacology ; Naloxone/metabolism/pharmacology ; Narcotic Antagonists/metabolism/pharmacology ; Pain Measurement ; Pain Threshold ; Phosphorylation ; Receptors, Opioid, mu/*metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    Bracing p53 for the war on cancer (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-01-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2431.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10636794" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antineoplastic Agents/chemistry/*pharmacology/therapeutic use ; Cell Division/drug effects ; DNA/metabolism ; Genes, p53 ; Humans ; Mice ; Mutation ; Neoplasms, Experimental/drug therapy/pathology ; *Protein Folding ; Pyrimidines/chemistry/*pharmacology ; Tumor Suppressor Protein p53/*chemistry/genetics/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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