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  • Articles  (597)
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  • Mice  (597)
  • 1990-1994  (597)
  • Natural Sciences in General  (597)
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  • 1
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    An all D-amino acid opioid peptide with central analgesic activity from a combinatorial library (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: A synthetic combinatorial library containing 52,128,400 D-amino acid hexapeptides was used to identify a ligand for the mu opioid receptor. The peptide, Ac-rfwink-NH2, bears no resemblance to any known opioid peptide. Simulations using molecular dynamics, however, showed that three amino acid moieties have the same spatial orientation as the corresponding pharmacophoric groups of the opioid peptide PLO17. Ac-rfwink-NH2 was shown to be a potent agonist at the mu receptor and induced long-lasting analgesia in mice. Analgesia produced by intraperitoneally administered Ac-rfwink-NH2 was blocked by intracerebroventricular administration of naloxone, demonstrating that this peptide may cross the blood-brain barrier.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dooley, C T -- Chung, N N -- Wilkes, B C -- Schiller, P W -- Bidlack, J M -- Pasternak, G W -- Houghten, R A -- DA-000138/DA/NIDA NIH HHS/ -- DA-02615/DA/NIDA NIH HHS/ -- DA-03742/DA/NIDA NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):2019-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Torrey Pines Institute for Molecular Studies, San Diego, CA 92121.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801131" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Analgesics/chemistry/metabolism/*pharmacology ; Animals ; Brain/metabolism ; Dose-Response Relationship, Drug ; Endorphins/pharmacology ; Enkephalin, Ala(2)-MePhe(4)-Gly(5)- ; Enkephalin, D-Penicillamine (2,5)- ; Enkephalins/metabolism ; Guinea Pigs ; Injections, Intraventricular ; Male ; Mice ; Models, Molecular ; Molecular Sequence Data ; Naloxone/administration & dosage/pharmacology ; Opioid Peptides/chemistry/metabolism/*pharmacology ; Pain Measurement ; Protein Conformation ; Rats ; Receptors, Opioid, mu/agonists/metabolism ; Stereoisomerism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Italy keeps EMBL anxiously waiting (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Biggin, S -- New York, N.Y. -- Science. 1994 Dec 16;266(5192):1798.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7997871" target="_blank"〉PubMed〈/a〉
    Keywords: *Academies and Institutes/organization & administration ; Animals ; Biotechnology ; Italy ; Mice ; *Molecular Biology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    An alternative to SH2 domains for binding tyrosine-phosphorylated proteins (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-16
    Description: Src homology 2 (SH2) domains bind specifically to tyrosine-phosphorylated proteins that participate in signaling by growth factors and oncogenes. A protein domain was identified that bound specifically to the tyrosine-phosphorylated form of its target protein but differs from known SH2 sequences. Phosphotyrosine-binding (PTB) domains were found in two proteins: SHC, a protein implicated in signaling through Ras; and SCK, encoded by a previously uncharacterized gene. The PTB domain of SHC specifically bound to a tyrosine-phosphorylated 145-kilodalton protein. PTB domains are an alternative to SH2 domains for specifically recruiting tyrosine-phosphorylated proteins into signaling complexes and are likely to take part in signaling by many growth factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kavanaugh, W M -- Williams, L T -- K11 HL02714/HL/NHLBI NIH HHS/ -- R01 HL32898/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 16;266(5192):1862-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7527937" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; *Adaptor Proteins, Signal Transducing ; *Adaptor Proteins, Vesicular Transport ; Amino Acid Sequence ; Animals ; Cell Line ; Humans ; Mice ; Molecular Sequence Data ; Phosphoproteins/*metabolism ; Phosphorylation ; Phosphotyrosine ; Platelet-Derived Growth Factor/pharmacology ; Protein Binding ; Protein-Tyrosine Kinases/chemistry/metabolism ; Proteins/chemistry/*metabolism ; Shc Signaling Adaptor Proteins ; *Signal Transduction ; Tyrosine/*analogs & derivatives/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Subsets of HLA-DR1 molecules defined by SEB and TSST-1 binding (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-16
    Description: Superantigens bind to major histocompatibility complex class II molecules on antigen-presenting cells and stimulate T cells. Staphylococcus aureus enterotoxin B (SEB) and toxic shock syndrome toxin-1 (TSST-1) bind to the same region of human lymphocyte antigen (HLA)-DR1 but do not compete with each other, which indicates that they bind to different subsets of DR1 molecules. Here, a mutation in the peptide-binding groove disrupted the SEB and TSST-1 binding sites, which suggests that peptides can influence the interaction with bacterial toxins. In support of this, the expression of the DR1 molecule in various cell types differentially affected the binding of these toxins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thibodeau, J -- Cloutier, I -- Lavoie, P M -- Labrecque, N -- Mourad, W -- Jardetzky, T -- Sekaly, R P -- New York, N.Y. -- Science. 1994 Dec 16;266(5192):1874-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire d'Immunologie, Institut de Recherches Cliniques de Montreal, Quebec, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7997881" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; *Bacterial Toxins ; Binding Sites ; Binding, Competitive ; Cell Line ; Enterotoxins/chemistry/*metabolism ; HLA-DR1 Antigen/chemistry/genetics/*metabolism ; HeLa Cells ; Humans ; Hybridomas ; Mice ; Mutation ; Protein Structure, Secondary ; *Staphylococcus aureus ; Superantigens/chemistry/*metabolism ; T-Lymphocytes/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Correction of lethal intestinal defect in a mouse model of cystic fibrosis by human CFTR (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-09
    Description: Cystic fibrosis (CF) is caused by mutations in the gene encoding the cystic fibrosis transmembrane conductance regulator (CFTR). A potential animal model of CF, the CFTR-/- mouse, has had limited utility because most mice die from intestinal obstruction during the first month of life. Human CFTR (hCFTR) was expressed in CFTR-/- mice under the control of the rat intestinal fatty acid-binding protein gene promoter. The mice survived and showed functional correction of ileal goblet cell and crypt cell hyperplasia and cyclic adenosine monophosphate-stimulated chloride secretion. These results support the concept that transfer of the hCFTR gene may be a useful strategy for correcting physiologic defects in patients with CF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, L -- Dey, C R -- Wert, S E -- DuVall, M D -- Frizzell, R A -- Whitsett, J A -- DK38518/DK/NIDDK NIH HHS/ -- HL49004/HL/NHLBI NIH HHS/ -- HL51832/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 9;266(5191):1705-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Children's Hospital Medical Center, Division of Pulmonary Biology, Cincinnati, OH 45229-3039.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7527588" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Carrier Proteins/genetics ; Chlorides/metabolism ; Colforsin/pharmacology ; Colon/chemistry/pathology ; Cystic Fibrosis/genetics/metabolism/pathology/*therapy ; Cystic Fibrosis Transmembrane Conductance Regulator ; Disease Models, Animal ; Fatty Acid-Binding Proteins ; Gene Expression ; *Genetic Therapy ; Humans ; Intestinal Mucosa/chemistry/*pathology/secretion ; Intestine, Small/chemistry/pathology ; Membrane Proteins/analysis/*genetics/physiology ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; *Neoplasm Proteins ; *Nerve Tissue Proteins ; Promoter Regions, Genetic ; RNA, Messenger/analysis/genetics ; Rats ; Recombinant Proteins/biosynthesis ; *Tumor Suppressor Proteins
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Differential activation of ERK and JNK mitogen-activated protein kinases by Raf-1 and MEKK (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-09
    Description: Growth factors activate mitogen-activated protein kinases (MAPKs), including extracellular signal-regulated kinases (ERKs) and Jun kinases (JNKs). Although the signaling cascade from growth factor receptors to ERKs is relatively well understood, the pathway leading to JNK activation is more obscure. Activation of JNK by epidermal growth factor (EGF) or nerve growth factor (NGF) was dependent on H-Ras activation, whereas JNK activation by tumor necrosis factor alpha (TNF-alpha) was Ras-independent. Ras activates two protein kinases, Raf-1 and MEK (MAPK, or ERK, kinase) kinase (MEKK). Raf-1 contributes directly to ERK activation but not to JNK activation, whereas MEKK participated in JNK activation but caused ERK activation only after overexpression. These results demonstrate the existence of two distinct Ras-dependent MAPK cascades--one initiated by Raf-1 leading to ERK activation, and the other initiated by MEKK leading to JNK activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Minden, A -- Lin, A -- McMahon, M -- Lange-Carter, C -- Derijard, B -- Davis, R J -- Johnson, G L -- Karin, M -- New York, N.Y. -- Science. 1994 Dec 9;266(5191):1719-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, School of Medicine, University of California at San Diego, La Jolla 92093-0636.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7992057" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Enzyme Activation/drug effects ; Epidermal Growth Factor/pharmacology ; Genes, ras ; HeLa Cells ; Humans ; JNK Mitogen-Activated Protein Kinases ; *MAP Kinase Kinase Kinase 1 ; Mice ; Mitogen-Activated Protein Kinase 1 ; *Mitogen-Activated Protein Kinases ; Nerve Growth Factors/pharmacology ; PC12 Cells ; Protein-Serine-Threonine Kinases/*metabolism ; Protein-Tyrosine Kinases/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-raf ; Rats ; Transfection ; Tumor Necrosis Factor-alpha/pharmacology ; ras Proteins/*pharmacology
    Print ISSN: 0036-8075
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  • 7
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    Insights from the study of animals lacking functional estrogen receptor (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-02
    Description: Estrogen hormones produce physiological actions within a variety of target sites in the body and during development by activating a specific receptor protein. Hormone responsiveness for the estrogen receptor protein was investigated at different stages of development with the use of gene knockout techniques because no natural genetic mutants have been described. A mutant mouse line without a functional estrogen receptor was created and is being used to assess estrogen responsiveness. Both sexes of these mutant animals are infertile and show a variety of phenotypic changes, some of which are associated with the gonads, mammary glands, reproductive tracts, and skeletal tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korach, K S -- New York, N.Y. -- Science. 1994 Dec 2;266(5190):1524-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Receptor Biology Section, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7985022" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Estrogens/*physiology ; Female ; Heterozygote ; Homozygote ; Humans ; Infertility, Female/etiology ; Infertility, Male/etiology ; Male ; Mice ; Mice, Knockout ; Mutation ; Phenotype ; Receptors, Estrogen/genetics/*physiology ; Signal Transduction
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Reversion of the mouse pink-eyed unstable mutation induced by low doses of x-rays (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-02
    Description: Deletions and other genome rearrangements can be caused by radiation and are associated with carcinogenesis and inheritable diseases. The pink-eyed unstable (p(un)) mutation in the mouse is caused by a gene duplication and reverts to wild type by deletion of one copy. Reversion events in the mouse embryo were detected as black spots on the fur of the animals or microscopically as partially black hair in a background of colorless hair. The frequency of partially black hair was increased by x-rays at very low doses. A linear dose-response relation was found between 1 and 100 centigray.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schiestl, R H -- Khogali, F -- Carls, N -- ES06593/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 2;266(5190):1573-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Toxicology, Harvard School of Public Health, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7985029" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dose-Response Relationship, Radiation ; Embryo, Mammalian/radiation effects ; Female ; *Gene Deletion ; Hair Color/genetics/radiation effects ; Male ; Maternal Exposure ; Melanocytes/radiation effects ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Multigene Family ; Mutagenicity Tests ; Mutation/*radiation effects
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Reconstitution of an operational MHC class II compartment in nonantigen-presenting cells (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-02
    Description: Professional antigen-presenting cells (APCs) have a distinct compartment in which class II molecules are proposed to acquire antigenic peptides. Genetic evidence suggests that human leukocyte antigen (HLA)-DM, an unusual class II molecule, participates in this process. Peptide acquisition was reconstituted in nonprofessional APCs by transfection of class II, invariant chain (li), and H-2M, the murine equivalent of DM. The H-2M heterodimer appeared in an endosomal compartment, not at the cell surface, and the localization was independent of li. The data presented show that H-2M, class II, and li are the minimally required components for efficient formation of stable class II-peptide complexes, and thus for a functional class II compartment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karlsson, L -- Peleraux, A -- Lindstedt, R -- Liljedahl, M -- Peterson, P A -- AI-26610/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 2;266(5190):1569-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉R. W. Johnson Pharmaceutical Research Institute, Scripps Research Institute, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7985028" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Antigen Presentation ; Antigen-Presenting Cells/immunology ; *Antigens, Differentiation, B-Lymphocyte ; B-Lymphocytes/immunology ; Cell Line ; Cell Membrane/immunology ; Endosomes/*immunology ; Fluorescent Antibody Technique ; H-2 Antigens/analysis/genetics/*metabolism ; HLA-DR3 Antigen/*metabolism ; HeLa Cells ; Histocompatibility Antigens Class II/*metabolism ; Humans ; Mice ; Mice, Inbred Strains ; Molecular Sequence Data ; Transfection
    Print ISSN: 0036-8075
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  • 10
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    Accumulation of HLA-DM, a regulator of antigen presentation, in MHC class II compartments (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-02
    Description: The HLA-DM genes encode an unconventional HLA (human leukocyte antigen) class II molecule that is required for appropriate binding of peptide to classical HLA class II products. In the absence of DM, other class II molecules are unstable upon electrophoresis in sodium dodecyl sulfate and are largely associated with a nested set of peptides derived from the invariant chain called CLIP, for class II-associated invariant chain peptides. DMA and DMB associated and accumulated in multilaminar, intracellular compartments with classical class II molecules, but were found infrequently, if at all, at the cell surface. Thus, DM may facilitate peptide binding to class II molecules within these intracellular compartments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanderson, F -- Kleijmeer, M J -- Kelly, A -- Verwoerd, D -- Tulp, A -- Neefjes, J J -- Geuze, H J -- Trowsdale, J -- New York, N.Y. -- Science. 1994 Dec 2;266(5190):1566-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Immunogenetics Laboratory, Imperial Cancer Research Fund, Holborn, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7985027" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; Cell Compartmentation ; Cell Line ; Cell Membrane/immunology ; Endoplasmic Reticulum/immunology ; Genes, MHC Class II ; HLA-D Antigens/analysis/genetics/*metabolism ; Histocompatibility Antigens Class I/analysis ; Histocompatibility Antigens Class II/analysis/*metabolism ; Humans ; L Cells (Cell Line) ; Mice ; Microscopy, Immunoelectron ; Subcellular Fractions/immunology ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
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  • 11
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    Obesity gene discovery may help solve weighty problem (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J -- New York, N.Y. -- Science. 1994 Dec 2;266(5190):1477-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7985012" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/metabolism ; Agouti Signaling Protein ; Animals ; Body Weight ; Cloning, Molecular ; *Genes ; Hormones/genetics/metabolism ; Humans ; *Intercellular Signaling Peptides and Proteins ; Mice ; Mice, Obese/*genetics ; *Mutation ; Obesity/*genetics/therapy ; Proteins/genetics
    Print ISSN: 0036-8075
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  • 12
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    Mutant mice, Cu,Zn superoxide dismutase, and motor neuron degeneration (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCord, J M -- New York, N.Y. -- Science. 1994 Dec 2;266(5190):1586-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7985031" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/*enzymology/genetics ; Animals ; Disease Models, Animal ; Humans ; Lipid Peroxidation ; Mice ; Mice, Transgenic ; Motor Neuron Disease/*enzymology/genetics ; Mutation ; Oxidative Stress ; Superoxide Dismutase/genetics/*metabolism ; Superoxides/metabolism
    Print ISSN: 0036-8075
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  • 13
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    Exocytosis in spermatozoa in response to progesterone and zona pellucida (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-02
    Description: Exocytosis in mammalian spermatozoa (the acrosome reaction) is a process essential for fertilization. Both progesterone and zona pellucida induce exocytosis in spermatozoa, which may encounter both during penetration of the oocyte's vestments. When mouse spermatozoa were exposed first to progesterone and then to zona pellucida, exocytosis was enhanced to a greater degree than that seen when the agonists were presented together or in the inverse order, which suggests that the steroid exerts a priming effect. Progesterone similarly primed the generation of intracellular messengers evoked by zona pellucida. The effects triggered by progesterone were mimicked by gamma-aminobutyric acid (GABA) and were blocked by bicuculline, which indicates that the steroid acts on a GABAA receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roldan, E R -- Murase, T -- Shi, Q X -- New York, N.Y. -- Science. 1994 Dec 2;266(5190):1578-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Development and Signalling, Babraham Institute, Biotechnology and Biological Sciences Research Council, Cambridge, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7985030" target="_blank"〉PubMed〈/a〉
    Keywords: Acrosome/drug effects/*physiology ; Animals ; Bicuculline/pharmacology ; Calcium/metabolism ; Diglycerides/metabolism ; *Exocytosis/drug effects ; Male ; Mice ; Phosphatidylinositol 4,5-Diphosphate ; Phosphatidylinositol Phosphates/metabolism ; Phospholipase D/metabolism ; Progesterone/*pharmacology ; Receptors, GABA/physiology ; Spermatozoa/drug effects/*physiology ; Zona Pellucida/*physiology ; gamma-Aminobutyric Acid/pharmacology
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  • 14
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    Adequate supplies of fruits and vegetables (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abelson, P H -- New York, N.Y. -- Science. 1994 Nov 25;266(5189):1303.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973710" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinogenicity Tests ; Diet ; Female ; *Fruit ; *Fungicides, Industrial/toxicity ; Humans ; Male ; Mice ; United States ; United States Environmental Protection Agency ; *Vegetables
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  • 15
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    Lymphotactin: a cytokine that represents a new class of chemokine (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-25
    Description: In this study, the cytokine-producing profile of progenitor T cells (pro-T cells) was determined. During screening of a complementary DNA library generated from activated mouse pro-T cells, a cytokine designated lymphotactin was discovered. Lymphotactin is similar to members of both the Cys-Cys and Cys-X-Cys chemokine families but lacks two of the four cysteine residues that are characteristic of the chemokines. Lymphotactin is also expressed in activated CD8+ T cells and CD4-CD8- T cell receptor alpha beta + thymocytes. It has chemotactic activity for lymphocytes but not for monocytes or neutrophils. The gene encoding lymphotactin maps to chromosome one. Taken together, these observations suggest that lymphotactin represents a novel addition to the chemokine superfamily.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kelner, G S -- Kennedy, J -- Bacon, K B -- Kleyensteuber, S -- Largaespada, D A -- Jenkins, N A -- Copeland, N G -- Bazan, J F -- Moore, K W -- Schall, T J -- New York, N.Y. -- Science. 1994 Nov 25;266(5189):1395-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, DNAX Research Institute of Cellular and Molecular Biology, Palo Alto, CA 94304.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973732" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Calcium/metabolism ; Cell Line ; Chemokine CCL4 ; *Chemokines, C ; *Chemotaxis, Leukocyte ; Cytokines/pharmacology ; Hematopoietic Stem Cells/*immunology ; Humans ; Lymphokines/chemistry/genetics/isolation & purification/pharmacology/*physiology ; Macrophage Inflammatory Proteins ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Monokines/pharmacology ; Recombinant Proteins ; Sequence Alignment ; Sialoglycoproteins/chemistry/genetics/isolation & ; purification/pharmacology/*physiology ; Signal Transduction ; T-Lymphocyte Subsets/*immunology
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    Step taken toward improved vectors for gene transfer (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1994 Nov 25;266(5189):1326.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973723" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Gene Transfer Techniques ; Genetic Therapy/*methods ; Genetic Vectors/*genetics/metabolism ; Humans ; Mice ; Moloney murine leukemia virus/*genetics/metabolism ; Receptors, Erythropoietin/*metabolism ; Receptors, Virus/metabolism ; Recombinant Fusion Proteins/metabolism
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  • 17
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    Tissue-specific targeting of retroviral vectors through ligand-receptor interactions (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-25
    Description: The development of retroviral vectors that target specific cell types could have important implications for the design of gene therapy strategies. A chimeric protein containing the polypeptide hormone erythropoietin and part of the env protein of ecotropic Moloney murine leukemia virus was engineered into the virus. This murine virus became several times more infectious for murine cells bearing the erythropoietin receptor, and it also became infectious for human cells bearing the erythropoietin receptor. This type of tissue-specific targeting by means of ligand-receptor interactions may have broad applications to a variety of gene delivery systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kasahara, N -- Dozy, A M -- Kan, Y W -- AM16666/AM/NIADDK NIH HHS/ -- HL 20985/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Nov 25;266(5189):1373-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Laboratory Medicine, University of California, San Francisco 94143-0724.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973726" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Base Sequence ; Cell Line ; Erythrocytes/chemistry/*virology ; Erythropoietin/genetics/metabolism ; Genetic Therapy/methods ; Genetic Vectors/*genetics/physiology ; HeLa Cells ; Humans ; Ligands ; Mice ; Molecular Sequence Data ; Moloney murine leukemia virus/*genetics/physiology ; Receptors, Erythropoietin/*metabolism ; Receptors, Virus/metabolism ; Recombinant Fusion Proteins/metabolism ; Transfection ; Tumor Cells, Cultured ; Viral Envelope Proteins/metabolism
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    Risk from low-dose exposures (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉von Borstel, R C -- New York, N.Y. -- Science. 1994 Nov 18;266(5188):1144-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7832907" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anticarcinogenic Agents ; *Antimutagenic Agents ; Carcinogenicity Tests/*statistics & numerical data ; DNA Repair ; Humans ; Mice
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  • 19
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    Risk from low-dose exposures (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monro, A M -- New York, N.Y. -- Science. 1994 Nov 18;266(5188):1141.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973684" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinogenicity Tests/*statistics & numerical data ; Carcinogens/*administration & dosage/toxicity ; Dose-Response Relationship, Drug ; Female ; Humans ; Male ; Mice ; Mutagenicity Tests ; Neoplasms/*chemically induced ; Rats ; Risk Assessment
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  • 20
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    Modulation of epithelial cell growth by intraepithelial gamma delta T cells (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-18
    Description: The role played in immune surveillance by gamma delta T cells residing in various epithelia has not been clear. It is shown here that activated gamma delta T cells obtained from skin and intestine express the epithelial cell mitogen keratinocyte growth factor (KGF). In contrast, intraepithelial alpha beta T cells, as well as all lymphoid alpha beta and gamma delta T cell populations tested, did not produce KGF or promote the growth of cultured epithelial cells. These results suggest that intraepithelial gamma delta T cells function in surveillance and in repair of damaged epithelial tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boismenu, R -- Havran, W L -- AI32751/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1994 Nov 18;266(5188):1253-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Scripps Research Institute, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973709" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Division ; Cell Line ; Cells, Cultured ; Cloning, Molecular ; Dendritic Cells/*physiology ; Epithelial Cells ; Fibroblast Growth Factor 10 ; Fibroblast Growth Factor 7 ; *Fibroblast Growth Factors ; Growth Substances/*biosynthesis/genetics ; Keratinocytes/*cytology ; Lymphocyte Activation ; Mice ; Molecular Sequence Data ; *Receptors, Antigen, T-Cell, gamma-delta ; T-Lymphocyte Subsets/immunology/metabolism/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    Activation of the myogenic lineage by MEF2A, a factor that induces and cooperates with MyoD (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-18
    Description: Muscle enhancer factor-2A (MEF2A), a member of the MADS family, induced myogenic development when ectopically expressed in clones of nonmuscle cells of human clones, a function previously limited to the muscle basic helix-loop-helix (bHLH) proteins. During myogenesis, MEF2A and bHLH proteins cooperatively activate skeletal muscle genes and physically interact through the MADS domain of MEF2A and the three myogenic amino acids of the muscle bHLH proteins. Thus, skeletal myogenesis is mediated by two distinct families of mutually inducible and interactive muscle transcription factors, either of which can initiate the developmental cascade.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaushal, S -- Schneider, J W -- Nadal-Ginard, B -- Mahdavi, V -- New York, N.Y. -- Science. 1994 Nov 18;266(5188):1236-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cardiology, Children's Hospital, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973707" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Cell Differentiation ; Cell Line ; DNA/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; *Gene Expression Regulation ; Genes, Reporter ; Haplorhini ; Helix-Loop-Helix Motifs ; Humans ; MADS Domain Proteins ; MEF2 Transcription Factors ; Mice ; Molecular Sequence Data ; Muscle, Skeletal/*cytology/metabolism ; MyoD Protein/biosynthesis/*metabolism ; Myogenic Regulatory Factors ; Myogenin/biosynthesis/genetics/metabolism ; Transcription Factors/genetics/*metabolism ; Transfection
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    Analysis and expression of a cloned pre-T cell receptor gene (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-18
    Description: The T cell antigen receptor (TCR) beta chain regulates early T cell development in the absence of the TCR alpha chain. The developmentally controlled gene described here encodes the pre-TCR alpha (pT alpha) chain, which covalently associates with TCR beta and with the CD3 proteins forms a pre-TCR complex that transduces signals in immature thymocytes. Unlike the lambda 5 pre-B cell receptor protein, the pT alpha chain is a type I transmembrane protein whose cytoplasmic tail contains two potential phosphorylation sites and a Src homology 3 (SH3)-domain binding sequence. Pre-TCR alpha transfection experiments indicated that surface expression of the pre-TCR is controlled by additional developmentally regulated proteins. Identification of the pT alpha gene represents an essential step in the structure-function analysis of the pre-TCR complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saint-Ruf, C -- Ungewiss, K -- Groettrup, M -- Bruno, L -- Fehling, H J -- von Boehmer, H -- New York, N.Y. -- Science. 1994 Nov 18;266(5188):1208-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Unite INSERM 373, Institut Necker, Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973703" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD3/metabolism ; Base Sequence ; Cell Line ; *Cloning, Molecular ; DNA, Complementary/genetics ; *Gene Expression Regulation, Developmental ; Gene Rearrangement ; Membrane Glycoproteins/chemistry/*genetics/metabolism ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Open Reading Frames ; Phosphorylation ; Polymerase Chain Reaction ; Rabbits ; Receptors, Antigen, T-Cell, alpha-beta/chemistry/*genetics/metabolism ; Signal Transduction ; T-Lymphocytes/*immunology ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Role of TCR zeta chain in T cell development and selection (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-11
    Description: Signals mediated by the T cell receptor (TCR) are required for thymocyte maturation and selection. To examine the role of TCR zeta chain signals in development, TCR expression was restored in zeta-deficient mice with transgenic zeta chains that partially or completely lacked sequences required for signal transduction. The zeta chain played a role in thymic development by promoting TCR surface expression, but zeta-mediated signals were not essential because TCRs that contained signaling-deficient zeta chains promoted T cell maturation and transduced signals associated with thymic selection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shores, E W -- Huang, K -- Tran, T -- Lee, E -- Grinberg, A -- Love, P E -- New York, N.Y. -- Science. 1994 Nov 11;266(5187):1047-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematologic Products, Food and Drug Administration, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7526464" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD/analysis/genetics ; Antigens, CD4/analysis ; Antigens, CD5 ; Antigens, CD8/analysis ; Antigens, Differentiation, T-Lymphocyte/analysis ; *DNA-Binding Proteins ; Down-Regulation ; Gene Expression ; *Homeodomain Proteins ; Lectins, C-Type ; Lymph Nodes/immunology ; Membrane Proteins/genetics/*physiology ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Proteins/genetics ; RNA, Messenger/genetics/metabolism ; Receptors, Antigen, T-Cell/genetics/*physiology ; Signal Transduction ; T-Lymphocytes/cytology/*immunology ; Thymus Gland/immunology
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    p53 status and the efficacy of cancer therapy in vivo (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-04
    Description: The therapeutic responsiveness of genetically defined tumors expressing or devoid of the p53 tumor suppressor gene was compared in immunocompromised mice. Tumors expressing the p53 gene contained a high proportion of apoptotic cells and typically regressed after treatment with gamma radiation or adriamycin. In contrast, p53-deficient tumors treated with the same regimens continued to enlarge and contained few apoptotic cells. Acquired mutations in p53 were associated with both treatment resistance and relapse in p53-expressing tumors. These results establish that defects in apoptosis, here caused by the inactivation of p53, can produce treatment-resistant tumors and suggest that p53 status may be an important determinant of tumor response to therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lowe, S W -- Bodis, S -- McClatchey, A -- Remington, L -- Ruley, H E -- Fisher, D E -- Housman, D E -- Jacks, T -- 5R27CA17575/CA/NCI NIH HHS/ -- CA14051/CA/NCI NIH HHS/ -- R01CA40602/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Nov 4;266(5186):807-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cancer Research, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973635" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Doxorubicin/*therapeutic use ; Drug Resistance ; Fibrosarcoma/drug therapy/*genetics/radiotherapy/*therapy ; *Gamma Rays ; *Genes, p53/genetics ; Immunocompromised Host ; Mice ; Mice, Nude ; Mutation ; Neoplasm Recurrence, Local ; Neoplasm Transplantation ; Radiation Tolerance
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    The function of KGF in morphogenesis of epithelium and reepithelialization of wounds (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-11-04
    Description: The function of keratinocyte growth factor (KGF) in normal and wounded skin was assessed by expression of a dominant-negative KGF receptor transgene in basal keratinocytes. The skin of transgenic mice was characterized by epidermal atrophy, abnormalities in the hair follicles, and dermal hyperthickening. Upon skin injury, inhibition of KGF receptor signaling reduced the proliferation rate of epidermal keratinocytes at the wound edge, resulting in substantially delayed reepithelialization of the wound.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Werner, S -- Smola, H -- Liao, X -- Longaker, M T -- Krieg, T -- Hofschneider, P H -- Williams, L T -- HL-43821/HL/NHLBI NIH HHS/ -- R01 HL32898/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Nov 4;266(5186):819-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cardiovascular Research Institute, University of California at San Francisco (UCSF) 94143-0130.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973639" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Cell Division ; Cell Movement ; Epidermis/pathology ; Epithelial Cells ; Fibroblast Growth Factor 10 ; Fibroblast Growth Factor 7 ; *Fibroblast Growth Factors ; Growth Substances/*physiology ; Hair/cytology/growth & development ; Keratinocytes/*cytology/physiology ; Mice ; Mice, Transgenic ; Phenotype ; Receptor, Fibroblast Growth Factor, Type 2 ; *Receptors, Fibroblast Growth Factor ; Receptors, Growth Factor/genetics/*physiology ; Signal Transduction ; Skin/*cytology ; Wound Healing/*physiology
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    Transformation of lupus-inducing drugs to cytotoxic products by activated neutrophils (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-04
    Description: Drug-induced lupus is a serious side effect of certain medications, but the chemical features that confer this property and the underlying pathogenesis are puzzling. Prototypes of all six therapeutic classes of lupus-inducing drugs were highly cytotoxic only in the presence of activated neutrophils. Removal of extracellular hydrogen peroxide before, but not after, exposure of the drug to activated neutrophils prevented cytotoxicity. Neutrophil-dependent cytotoxicity required the enzymatic action of myeloperoxidase, resulting in the chemical transformation of the drug to a reactive product. The capacity of drugs to serve as myeloperoxidase substrates in vitro was associated with the ability to induce lupus in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jiang, X -- Khursigara, G -- Rubin, R L -- MO1 RR00833/RR/NCRR NIH HHS/ -- R01 AG09574/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1994 Nov 4;266(5186):810-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉W. M. Keck Autoimmune Disease Center, Department of Molecular and Experimental Medicine, Scripps Research Institute, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973636" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Assay ; Biotransformation ; Cell Death/*drug effects ; Chlorpromazine/analogs & derivatives/metabolism/toxicity ; Humans ; Hydralazine/analogs & derivatives/metabolism/toxicity ; Hydrogen Peroxide/metabolism ; Isoniazid/analogs & derivatives/metabolism/toxicity ; Lupus Erythematosus, Systemic/*chemically induced ; Mice ; *Neutrophil Activation ; Neutrophils/enzymology/*metabolism ; Peroxidase/*metabolism ; Procainamide/analogs & derivatives/metabolism/toxicity ; Propylthiouracil/analogs & derivatives/metabolism/toxicity ; Quinidine/analogs & derivatives/metabolism/toxicity ; Tumor Cells, Cultured
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  • 27
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    PHAS-I as a link between mitogen-activated protein kinase and translation initiation (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-10-28
    Description: PHAS-I is a heat-stable protein (relative molecular mass approximately 12,400) found in many tissues. It is rapidly phosphorylated in rat adipocytes incubated with insulin or growth factors. Nonphosphorylated PHAS-I bound to initiation factor 4E (eIF-4E) and inhibited protein synthesis. Serine-64 in PHAS-I was rapidly phosphorylated by mitogen-activated (MAP) kinase, the major insulin-stimulated PHAS-I kinase in adipocyte extracts. Results obtained with antibodies, immobilized PHAS-I, and a messenger RNA cap affinity resin indicated that PHAS-I did not bind eIF-4E when serine-64 was phosphorylated. Thus, PHAS-I may be a key mediator of the stimulation of protein synthesis by the diverse group of agents and stimuli that activate MAP kinase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, T A -- Kong, X -- Haystead, T A -- Pause, A -- Belsham, G -- Sonenberg, N -- Lawrence, J C Jr -- AR41180/AR/NIAMS NIH HHS/ -- DK28312/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1994 Oct 28;266(5185):653-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Pharmacology, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939721" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Adipocytes/metabolism ; Animals ; *Carrier Proteins ; Insulin/*pharmacology ; Mice ; Mitogen-Activated Protein Kinase 1 ; Peptide Initiation Factors/isolation & purification/*metabolism ; Phosphoproteins/*metabolism ; Phosphorylation ; *Protein Biosynthesis ; Protein-Serine-Threonine Kinases/*metabolism ; Protein-Tyrosine Kinases/*metabolism ; Rats ; Recombinant Proteins/metabolism ; Serine/metabolism
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  • 28
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    The D2 receptor gene (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-10-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crabbe, J C -- Belknap, J K -- Buck, K J -- New York, N.Y. -- Science. 1994 Oct 21;266(5184):352-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939673" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/genetics ; Animals ; Chromosome Mapping ; Mice ; Receptors, Dopamine D2/*genetics/physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 29
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    Rescue of T cell-specific V(D)J recombination in SCID mice by DNA-damaging agents (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-10-21
    Description: Assembly of antigen receptor V (variable), D (diversity), and J (joining) gene segments requires lymphocyte-specific genes and ubiquitous DNA repair activities. Severe combined immunodeficient (SCID) mice are defective in general double-strand (ds) DNA break repair and V(D)J coding joint formation, resulting in arrested lymphocyte development. A single treatment of newborn SCID mice with DNA-damaging agents restored functional, diverse, T cell receptor beta chain coding joints, as well as development and expansion of thymocytes expressing both CD4 and CD8 coreceptors, but did not promote B cell development. Thymic lymphoma developed in all mice treated with DNA-damaging agents, suggesting an interrelation between V(D)J recombination, dsDNA break repair, and lymphomagenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Danska, J S -- Pflumio, F -- Williams, C J -- Huner, O -- Dick, J E -- Guidos, C J -- New York, N.Y. -- Science. 1994 Oct 21;266(5184):450-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Surgical Research, Hospital for Sick Children Research Institute, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7524150" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; B-Lymphocytes/cytology/immunology ; Base Sequence ; Bleomycin/pharmacology ; Cell Transformation, Neoplastic ; *DNA Damage ; DNA Repair ; Gamma Rays ; *Gene Rearrangement ; Hematopoietic Stem Cells/cytology/immunology ; Lymphoma/etiology/pathology ; Mice ; Mice, SCID ; Molecular Sequence Data ; Receptors, Antigen, T-Cell, alpha-beta/*genetics ; T-Lymphocyte Subsets/cytology/immunology ; T-Lymphocytes/cytology/*immunology ; Thymus Neoplasms/etiology/pathology
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    T cells and suppression in vitro (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-10-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scott, B -- Kaye, J -- Lo, D -- New York, N.Y. -- Science. 1994 Oct 21;266(5184):464-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939690" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; *Clonal Anergy ; *Lymphocyte Activation ; Mice ; Mice, Transgenic ; T-Lymphocytes, Regulatory/*immunology
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    c-Fos: a key regulator of osteoclast-macrophage lineage determination and bone remodeling (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-10-21
    Description: Mice lacking the proto-oncogene c-fos develop the bone disease osteopetrosis. Fos mutant mice were found to have a block in the differentiation of bone-resorbing osteoclasts that was intrinsic to hematopoietic cells. Bone marrow transplantation rescued the osteopetrosis, and ectopic c-fos expression overcame this differentiation block. The lack of Fos also caused a lineage shift between osteoclasts and macrophages that resulted in increased numbers of bone marrow macrophages. These results identify Fos as a key regulator of osteoclast-macrophage lineage determination in vivo and provide insights into the molecular mechanisms underlying metabolic bone diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grigoriadis, A E -- Wang, Z Q -- Cecchini, M G -- Hofstetter, W -- Felix, R -- Fleisch, H A -- Wagner, E F -- New York, N.Y. -- Science. 1994 Oct 21;266(5184):443-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Institute of Molecular Pathology (IMP), Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939685" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Transplantation ; Bone Remodeling/*physiology ; Cell Differentiation ; Cells, Cultured ; Genes, fos ; Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/*cytology ; Macrophages/*cytology ; Mice ; Mice, Mutant Strains ; Osteoclasts/*cytology ; Osteogenesis ; Osteopetrosis/metabolism/pathology ; Proto-Oncogene Proteins c-fos/genetics/*physiology
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    Abnormal fear response and aggressive behavior in mutant mice deficient for alpha-calcium-calmodulin kinase II (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-10-14
    Description: Mice deficient for the gene encoding alpha-calcium-calmodulin-dependent kinase II (alpha-CaMKII knockout mice) provide a promising tool to link behavioral and cellular abnormalities with a specific molecular lesion. The heterozygous mouse exhibited a well-circumscribed syndrome of behavioral abnormalities, consisting primarily of a decreased fear response and an increase in defensive aggression, in the absence of any measured cognitive deficits. Unlike the heterozygote, the homozygote displayed abnormal behavior in all paradigms tested. At the cellular level, both extracellular and whole-cell patch clamp recordings indicated that serotonin release in putative serotonergic neurons of the dorsal raphe was reduced. Thus, alpha-CaMKII knockout mice, in particular the heterozygote, may provide a model for studying the molecular and cellular basis underlying emotional disorders involving fear and aggression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, C -- Rainnie, D G -- Greene, R W -- Tonegawa, S -- New York, N.Y. -- Science. 1994 Oct 14;266(5183):291-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Center for Cancer Research, Cambridge, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939668" target="_blank"〉PubMed〈/a〉
    Keywords: *Aggression ; Animals ; Behavior, Animal ; Calcium-Calmodulin-Dependent Protein Kinase Type 2 ; Calcium-Calmodulin-Dependent Protein Kinases/deficiency/genetics/*physiology ; *Fear ; Fluoxetine/pharmacology ; Gene Dosage ; Heterozygote ; Homozygote ; In Vitro Techniques ; Membrane Potentials ; Mice ; Mice, Knockout ; Mutation ; Neurons/metabolism ; Patch-Clamp Techniques ; Raphe Nuclei/metabolism ; Serotonin/metabolism/pharmacology ; Synaptic Transmission/drug effects
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    Association of the protein kinases c-Bcr and Bcr-Abl with proteins of the 14-3-3 family (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-10-07
    Description: In this study, a protein that interacts with sequences encoded by the first exon of the protein kinase Bcr was cloned. The Bcr-associated protein 1 (Bap-1) is a member of the 14-3-3 family of proteins. Bap-1 interacts with full-length c-Bcr and with the chimeric Bcr-Abl tyrosine kinase of Philadelphia chromosome (Ph1)-positive human leukemias. Bap-1 is a substrate for the Bcr serine-threonine kinase and is also phosphorylated on tyrosine by Bcr-Abl but not by c-Abl. Bap-1 may function in the regulation of c-Bcr and may contribute to the transforming activity of Bcr-Abl in vivo. 14-3-3 proteins are essential for cell proliferation and have a role in determining the timing of mitosis in yeast. Through direct binding to sequences present in Bcr and in other proteins implicated in signaling, the mammalian 14-3-3 proteins may link specific signaling protein components to mitogenic and cell-cycle control pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reuther, G W -- Fu, H -- Cripe, L D -- Collier, R J -- Pendergast, A M -- CA61033/CA/NCI NIH HHS/ -- DK01965/DK/NIDDK NIH HHS/ -- GM07184/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Oct 7;266(5182):129-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Duke University Medical Center, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939633" target="_blank"〉PubMed〈/a〉
    Keywords: 14-3-3 Proteins ; Animals ; Cell Division ; Cell Line ; Cell Transformation, Neoplastic ; Fusion Proteins, bcr-abl/*metabolism ; Humans ; Mice ; Phosphorylation ; Poly(ADP-ribose) Polymerases/metabolism ; Protein-Tyrosine Kinases/*metabolism ; Proteins/isolation & purification/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-bcr ; Rats ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction ; *Tyrosine 3-Monooxygenase
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    Cystic fibrosis heterozygote resistance to cholera toxin in the cystic fibrosis mouse model (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-10-07
    Description: The effect of the number of cystic fibrosis (CF) alleles on cholera toxin (CT)-induced intestinal secretion was examined in the CF mouse model. CF mice that expressed no CF transmembrane conductance regulator (CFTR) protein did not secrete fluid in response to CT. Heterozygotes expressed 50 percent of the normal amount of CFTR protein in the intestinal epithelium and secreted 50 percent of the normal fluid and chloride ion in intestinal epithelium and secreted 50 percent of the normal fluid and chloride ion and fluid secretion suggests that CF heterozygotes might possess a selective advantage of resistance to cholera.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gabriel, S E -- Brigman, K N -- Koller, B H -- Boucher, R C -- Stutts, M J -- DK46003/DK/NIDDK NIH HHS/ -- HL34322/HL/NHLBI NIH HHS/ -- HL42384/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Oct 7;266(5182):107-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of North Carolina, Chapel Hill 27599.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7524148" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Body Fluids/*secretion ; Chloride Channels/metabolism ; Chlorides/*metabolism ; Cholera Toxin/*toxicity ; Crosses, Genetic ; Cyclic AMP/metabolism ; Cystic Fibrosis/*genetics/physiopathology ; Cystic Fibrosis Transmembrane Conductance Regulator ; Female ; Heterozygote ; Intestinal Mucosa/*secretion ; Intestine, Small/secretion ; Male ; Membrane Proteins/*genetics/metabolism ; Mice
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    Interaction of the protein kinase Raf-1 with 14-3-3 proteins (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-10-07
    Description: Members of a family of highly conserved proteins, termed 14-3-3 proteins, were found by several experimental approaches to associate with Raf-1, a central component of a key signal transduction pathway. Optimal complex formation required the amino-terminal regulatory domain of Raf-1. The association of 14-3-3 proteins and Raf-1 was not substantially affected by the activation state of Raf.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fu, H -- Xia, K -- Pallas, D C -- Cui, C -- Conroy, K -- Narsimhan, R P -- Mamon, H -- Collier, R J -- Roberts, T M -- AI22021/AI/NIAID NIH HHS/ -- CA57327/CA/NCI NIH HHS/ -- HD24926/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1994 Oct 7;266(5182):126-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939632" target="_blank"〉PubMed〈/a〉
    Keywords: 14-3-3 Proteins ; 3T3 Cells ; Animals ; Binding Sites ; Cell Line ; Enzyme Activation ; Humans ; Mice ; Nerve Tissue Proteins/metabolism ; Phosphorylation ; Poly(ADP-ribose) Polymerases/metabolism ; Protein-Serine-Threonine Kinases/*metabolism ; Proteins/chemistry/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-raf ; *Signal Transduction ; Spodoptera ; *Tyrosine 3-Monooxygenase ; Zinc Fingers
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    Mediation of c-Myc-induced apoptosis by p53 (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-09-30
    Description: The cellular proto-oncogene c-myc is involved in cell proliferation and transformation but is also implicated in the induction of programmed cell death (apoptosis). The same characteristics have been described for the tumor suppressor gene p53, the most commonly mutated gene in human cancer. In quiescent mouse fibroblasts expressing wild-type p53 protein, activation of c-Myc was found to induce apoptosis and cell cycle reentry, preceded by stabilization of p53. In contrast, in quiescent p53-null fibroblasts, activation of c-Myc induced cell cycle reentry but not apoptosis. These results suggest that p53 mediates apoptosis as a safeguard mechanism to prevent cell proliferation induced by oncogene activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hermeking, H -- Eick, D -- New York, N.Y. -- Science. 1994 Sep 30;265(5181):2091-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Klinische Molekularbiologie und Tumorgenetik Forschungszentrum fur Umwelt und Gesundheit, GSF, Munchen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8091232" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; *Apoptosis ; Cell Line ; Estradiol/pharmacology ; G1 Phase ; Gene Expression Regulation ; Genes, myc ; Genes, p53 ; Mice ; Proto-Oncogene Proteins c-myc/*metabolism ; Tamoxifen/analogs & derivatives/pharmacology ; Transfection ; Tumor Suppressor Protein p53/*metabolism
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    Regulation of IgE responses to inhaled antigen in mice by antigen-specific gamma delta T cells (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-09-23
    Description: Indirect evidence implicates gamma delta T cells in the cross-regulation of CD4 alpha beta T cell responses. Adoptive transfer of small numbers of gamma delta T cells from ovalbumin (OVA)-tolerant mice selectively suppressed TH2-dependent immunoglobulin E (IgE) antibody production without affecting parallel IgG responses. Challenge of these gamma delta T cells in vitro with specific antigen resulted in production of high levels of interferon gamma. The effects of the gamma delta T cells may be mediated by direct inhibition of OVA-specific CD4+ TH2 cell proliferation or selection for specific CD4 TH2 cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McMenamin, C -- Pimm, C -- McKersey, M -- Holt, P G -- New York, N.Y. -- Science. 1994 Sep 23;265(5180):1869-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cell Biology, Institute for Child Health Research, West Perth, Western Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7916481" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD4-Positive T-Lymphocytes/*immunology ; Dose-Response Relationship, Immunologic ; *Immune Tolerance ; Immunoglobulin E/*biosynthesis ; Immunoglobulin G/biosynthesis ; Immunotherapy, Adoptive ; Interferon-gamma/biosynthesis ; Interleukin-2/biosynthesis ; Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Ovalbumin/immunology ; Receptors, Antigen, T-Cell, gamma-delta/*immunology ; T-Lymphocyte Subsets/*immunology ; Transforming Growth Factor beta/biosynthesis
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    Effects of cerebral ischemia in mice deficient in neuronal nitric oxide synthase (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-09-23
    Description: The proposal that nitric oxide (NO) or its reactant products mediate toxicity in brain remains controversial in part because of the use of nonselective agents that block NO formation in neuronal, glial, and vascular compartments. In mutant mice deficient in neuronal NO synthase (NOS) activity, infarct volumes decreased significantly 24 and 72 hours after middle cerebral artery occlusion, and the neurological deficits were less than those in normal mice. This result could not be accounted for by differences in blood flow or vascular anatomy. However, infarct size in the mutant became larger after endothelial NOS inhibition by nitro-L-arginine administration. Hence, neuronal NO production appears to exacerbate acute ischemic injury, whereas vascular NO protects after middle cerebral artery occlusion. The data emphasize the importance of developing selective inhibitors of the neuronal isoform.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Z -- Huang, P L -- Panahian, N -- Dalkara, T -- Fishman, M C -- Moskowitz, M A -- NS10828/NS/NINDS NIH HHS/ -- NS2636/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1994 Sep 23;265(5180):1883-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Stroke Research Laboratory, Massachusetts General Hospital, Charlestown 02129.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7522345" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Oxidoreductases/antagonists & inhibitors/deficiency/*metabolism ; Animals ; Arginine/analogs & derivatives/pharmacology ; Brain/enzymology/*metabolism ; Brain Ischemia/complications/*metabolism ; Cerebral Infarction/*etiology ; Cerebrovascular Circulation ; Female ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mutation ; Neurons/*enzymology ; Nitric Oxide/*metabolism ; Nitric Oxide Synthase ; Nitroarginine
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    Enhanced aggressive behavior in mice lacking 5-HT1B receptor (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-09-23
    Description: The neuromodulator serotonin (5-hydroxytryptamine, 5-HT) has been associated with mood disorders such as depression, anxiety, and impulsive violence. To define the contribution of 5-HT receptor subtypes to behavior, mutant mice lacking the 5-HT1B receptor were generated by homologous recombination. These mice did not exhibit any obvious developmental or behavioral defects. However, the hyperlocomotor effect of the 5-HT1A/1B agonist RU24969 was absent in mutant mice, indicating that this effect is mediated by 5-HT1B receptors. Moreover, when confronted with an intruder, mutant mice attacked the intruder faster and more intensely than did wild-type mice, suggesting the participation of 5-HT1B receptors in aggressive behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saudou, F -- Amara, D A -- Dierich, A -- LeMeur, M -- Ramboz, S -- Segu, L -- Buhot, M C -- Hen, R -- New York, N.Y. -- Science. 1994 Sep 23;265(5180):1875-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Genetique Moleculaire des Eucaryotes du CNRS, U184 de l'INSERM, Faculte de Medecine, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8091214" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression/*physiology ; Animals ; Brain Chemistry ; Chimera ; Female ; Indoles/pharmacology ; Male ; Mice ; Motor Activity/drug effects ; Mutation ; Pindolol/analogs & derivatives/metabolism ; Receptor, Serotonin, 5-HT1B ; Receptors, Serotonin/analysis/genetics/*physiology ; Recombination, Genetic ; Serotonin Receptor Agonists/pharmacology
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    Thymus-neuroendocrine interactions in extrathymic T cell development (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-09-23
    Description: Studies of the development of murine intestinal intraepithelial lymphocytes (IELs) have yielded markedly different results depending on the experimental system used. In athymic radiation chimeras, IELs consist of all subsets found in euthymic mice; adult mice that were athymic at birth have only IELs that are positive for T cell receptor gamma delta and CD8 alpha alpha. These differences are resolved by the finding that administration of the neuropeptide thyrotropin-releasing hormone to adult mice thymectomized as neonates leads to the development of all IEL T cells. Thus, a neuroendocrine signal initiated by the thymus during fetal or neonatal life appears to be required for subsequent extrathymic maturation of gut alpha beta T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, J -- Klein, J R -- DK35566/DK/NIDDK NIH HHS/ -- R01 DK035566/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1994 Sep 23;265(5180):1860-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Science, University of Tulsa, OK 74104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8091211" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD8/analysis ; Chimera ; Intestinal Mucosa/cytology/*immunology ; Mice ; Mice, Inbred Strains ; Mice, Nude ; Phenotype ; Receptors, Antigen, T-Cell, alpha-beta/analysis ; T-Lymphocyte Subsets/*cytology/immunology ; Thymectomy ; Thymus Gland/*physiology ; Thyrotropin-Releasing Hormone/*pharmacology
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    Role of a conserved retinoic acid response element in rhombomere restriction of Hoxb-1 (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-09-16
    Description: After activation in mesoderm and neuroectoderm, expression of the Hoxb-1 gene is progressively restricted to rhombomere (r) 4 in the hindbrain. Analysis of the chick and mouse Hoxb-1 genes identified positive and negative regulatory regions that cooperate to mediate segment-restricted expression during rhombomere formation. An enhancer generates expression extending into r3 and r5, and a repressor limits this domain to r4. The repressor contains a conserved retinoic acid response element, point mutations in which allow expression to spread into adjacent rhombomeres. Retinoids and their nuclear receptors may therefore participate in sharpening segment-restricted expression of Hoxb-1 during rhombomere boundary formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Studer, M -- Popperl, H -- Marshall, H -- Kuroiwa, A -- Krumlauf, R -- New York, N.Y. -- Science. 1994 Sep 16;265(5179):1728-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lab of Developmental Neurobiology, National Institute for Medical Research, Mill Hill, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7916164" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chick Embryo ; Enhancer Elements, Genetic ; Gene Expression Regulation ; *Genes, Homeobox ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Neural Crest/metabolism ; Oligonucleotides/metabolism ; Point Mutation ; Receptors, Cytoplasmic and Nuclear/metabolism ; Receptors, Retinoic Acid/metabolism ; *Regulatory Sequences, Nucleic Acid ; Retinoid X Receptors ; Rhombencephalon/*embryology/metabolism ; *Transcription Factors ; Tretinoin/*pharmacology
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    Activation of the sphingomyelin cycle through the low-affinity neurotrophin receptor (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-09
    Description: The role of the low-affinity neurotrophin receptor (p75NTR) in signal transduction is undefined. Nerve growth factor can activate the sphingomyelin cycle, generating the putative-lipid second messenger ceramide. In T9 glioma cells, addition of a cell-permeable ceramide analog mimicked the effects of nerve growth factor on cell growth inhibition and process formation. This signaling pathway appears to be mediated by p75NTR in T9 cells and NIH 3T3 cells overexpressing p75NTR. Expression of an epidermal growth factor receptor-p75NTR chimera in T9 cells imparted to epidermal growth factor the ability to activate the sphingomyelin cycle. These data demonstrate that p75NTR is capable of signaling independently of the trk neurotrophin receptor (p140trk) and that ceramide may be a mediator in neurotrophin biology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dobrowsky, R T -- Werner, M H -- Castellino, A M -- Chao, M V -- Hannun, Y A -- AG05531/AG/NIA NIH HHS/ -- GM43825/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 Sep 9;265(5178):1596-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Medicine and Cell Biology, Duke University Medical Center, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8079174" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Astrocytes/cytology/*metabolism ; Ceramides/metabolism/pharmacology ; Epidermal Growth Factor/pharmacology ; Glioblastoma ; Mice ; Nerve Growth Factors/pharmacology ; Proto-Oncogene Proteins/metabolism ; Rats ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptor, Epidermal Growth Factor/metabolism ; Receptor, trkA ; Receptors, Nerve Growth Factor/*metabolism ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction ; Sphingomyelins/*metabolism ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 43
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    Requirement of transcription factor PU.1 in the development of multiple hematopoietic lineages (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-09
    Description: The transcription factor PU.1 is a hematopoietic-specific member of the ets family. Mice carrying a mutation in the PU.1 locus were generated by gene targeting. Homozygous mutant embryos died at a late gestational stage. Mutant embryos produced normal numbers of megakaryocytes and erythroid progenitors, but some showed an impairment of erythroblast maturation. An invariant consequence of the mutation was a multilineage defect in the generation of progenitors for B and T lymphocytes, monocytes, and granulocytes. Thus, the developmental programs of lymphoid and myeloid lineages require a common genetic function likely acting at the level of a multipotential progenitor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scott, E W -- Simon, M C -- Anastasi, J -- Singh, H -- F32 AI08933/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1994 Sep 9;265(5178):1573-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Cell Biology, Howard Hughes Medical Institute, University of Chicago, IL 60637.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8079170" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA-Binding Proteins/genetics/*physiology ; Erythropoiesis ; Female ; Gene Rearrangement ; *Hematopoiesis ; Hematopoietic Stem Cells/cytology/*physiology ; Lymphocytes/cytology/physiology ; Macrophages/cytology/physiology ; Male ; Mice ; Mice, Inbred C57BL ; Monocytes/cytology/physiology ; Mutation ; Neutrophils/cytology/physiology ; Retroviridae Proteins, Oncogenic ; Transcription Factors/genetics/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 44
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    Analysis of sequence transfers resembling gene conversion in a mouse antibody transgene (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-09
    Description: The role of gene conversion in murine immunoglobulin gene diversification is unclear. An antibody gene construct designed to provide the homologous donor and acceptor sequences required for conversion mechanisms was produced and used to generate transgenic mice. When these transgenic mice were immunized, DNA sequence transfers between tandem transgene VDJ regions were detectable and resembled gene conversion events. There is a strong link between these conversion-like sequence transfers and transgene somatic hypermutation, suggesting that both processes might occur at the same stage of B cell differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, B -- Selsing, E -- New York, N.Y. -- Science. 1994 Sep 9;265(5178):1590-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Sackler Graduate School of Biomedical Science, Tufts University School of Medicine, Boston, MA 02111.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8079173" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibody Diversity ; B-Lymphocytes/cytology/*immunology ; Base Sequence ; Cell Differentiation ; *Gene Conversion ; *Genes, Immunoglobulin ; Hybridomas ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Joining Region/genetics ; Immunoglobulin Variable Region ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Mutation
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  • 45
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    Engineering poliovirus as a vaccine vector for the expression of diverse antigens (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-02
    Description: As a step toward developing poliovirus as a vaccine vector, poliovirus recombinants were constructed by fusing exogenous peptides (up to 400 amino acids) and an artificial cleavage site for viral protease 3Cpro to the amino terminus of the viral polyprotein. Viral replication proceeded normally. An extended polyprotein was produced in infected cells and proteolytically processed into the complete array of viral proteins plus the foreign peptide, which was excluded from mature virions. The recombinants retained exogenous sequences through successive rounds of replication in culture and in vivo. Infection of animals with recombinants elicited a humoral immune response to the foreign peptides.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Andino, R -- Silvera, D -- Suggett, S D -- Achacoso, P L -- Miller, C J -- Baltimore, D -- Feinberg, M B -- AI22346/AI/NIAID NIH HHS/ -- AI35545/AI/NIAID NIH HHS/ -- RR00169/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1994 Sep 2;265(5177):1448-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of California, San Francisco.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8073288" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Bacterial/biosynthesis ; Antibodies, Viral/biosynthesis ; Antigens, Bacterial/genetics/immunology ; Antigens, Viral/genetics/immunology ; Base Sequence ; Cloning, Molecular ; *Genetic Engineering ; Genetic Vectors ; HeLa Cells ; Humans ; Macaca fascicularis ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Poliovirus/*genetics/immunology/physiology ; Poliovirus Vaccine, Oral/*genetics ; *Protein Biosynthesis ; Proteins/metabolism ; Recombinant Proteins/biosynthesis/metabolism ; Vaccines, Synthetic/genetics/*immunology ; Virus Replication
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  • 46
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    Rapid induction of Alzheimer A beta amyloid formation by zinc (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-02
    Description: A beta 1-40, a major component of Alzheimer's disease cerebral amyloid, is present in the cerebrospinal fluid and remains relatively soluble at high concentrations (less than or equal to 3.7 mM). Thus, physiological factors which induce A beta amyloid formation could provide clues to the pathogenesis of the disease. It has been shown that human A beta specifically and saturably binds zinc. Here, concentrations of zinc above 300 nM rapidly destabilized human A beta 1-40 solutions, inducing tinctorial amyloid formation. However, rat A beta 1-40 binds zinc less avidly and is immune to these effects, perhaps explaining the scarcity with which these animals form cerebral A beta amyloid. These data suggest a role for cerebral zinc metabolism in the neuropathogenesis of Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bush, A I -- Pettingell, W H -- Multhaup, G -- d Paradis, M -- Vonsattel, J P -- Gusella, J F -- Beyreuther, K -- Masters, C L -- Tanzi, R E -- R01 AG11899-01/AG/NIA NIH HHS/ -- R01 NS30428-03/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1994 Sep 2;265(5177):1464-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genetics and Aging, Massachusetts General Hospital, Boston.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8073293" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/etiology/*metabolism ; Amyloid beta-Peptides/chemistry/*metabolism ; Animals ; Brain/metabolism ; Edetic Acid/pharmacology ; Humans ; Kinetics ; Mice ; Peptide Fragments/chemistry/*metabolism ; Rats ; Solubility ; Zinc/*metabolism/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 47
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    Thrombocytopenia in c-mpl-deficient mice (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-02
    Description: Thrombopoietin (TPO) is a cytokine that is involved in the regulation of platelet production. The receptor for TPO is c-Mpl. To further investigate the role and specificity of this receptor in regulating megakaryocytopoiesis, c-mpl-deficient mice were generated by gene targeting. The c-mpl-/- mice had an 85 percent decrease in their number of platelets and megakaryocytes but had normal amounts of other hematopoietic cell types. These mice also had increased concentrations of circulating TPO. These results show that c-mpl specifically regulates megakaryocytopoiesis and thrombopoiesis through activation by its ligand TPO.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gurney, A L -- Carver-Moore, K -- de Sauvage, F J -- Moore, M W -- New York, N.Y. -- Science. 1994 Sep 2;265(5177):1445-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Genentech, South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8073287" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Cell Count ; Blood Platelets/*cytology ; Genetic Vectors ; *Hematopoiesis ; Megakaryocytes/*cytology ; Mice ; *Neoplasm Proteins ; Platelet Count ; Proto-Oncogene Proteins/genetics/*metabolism ; Receptors, Cytokine/genetics/*metabolism ; Receptors, Immunologic/genetics/*metabolism ; Receptors, Thrombopoietin ; Recombination, Genetic ; Thrombocytopenia/blood/*metabolism ; Thrombopoietin/blood/*metabolism
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  • 48
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    Treatment of murine lupus with CTLA4Ig (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-26
    Description: The interaction of B7-related molecules on antigen-presenting cells with CD28 or CTLA-4 antigens on T cells provides a second signal for T cell activation. Selection inhibition of the B7-CD28 or B7-CTLA-4 interactions produces antigen-specific T cell unresponsiveness in vitro and suppresses immune function in vivo. To determine whether selective inhibition of the B7-CD28 or B7-CTLA-4 interactions could suppress spontaneous autoimmune disease, a B7-binding protein was generated by genetic fusion of the extracellular domain of murine CTLA-4 to the Fc portion of a mouse immunoglobulin G2a monoclonal antibody (muCTLA4Ig). In lupus-prone NZB/NZW filial generation (F1) mice, treatment with muCTLA4Ig blocked autoantibody production and prolonged life, even when treatment was delayed until the most advanced stage of clinical illness. These findings suggest a possible role for human CTLA4Ig in the treatment of autoimmune diseases in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finck, B K -- Linsley, P S -- Wofsy, D -- New York, N.Y. -- Science. 1994 Aug 26;265(5176):1225-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7520604" target="_blank"〉PubMed〈/a〉
    Keywords: Abatacept ; Animals ; Antibodies, Antinuclear/biosynthesis ; Antibodies, Monoclonal ; Antigens, CD ; Antigens, CD80/metabolism ; Antigens, Differentiation/immunology/metabolism/*therapeutic use ; B-Lymphocytes/immunology ; CTLA-4 Antigen ; Female ; Humans ; *Immunoconjugates ; Immunotherapy ; Lupus Erythematosus, Systemic/immunology/*therapy ; Mice ; Mice, Inbred NZB ; Mice, Inbred Strains ; Recombinant Fusion Proteins/therapeutic use ; T-Lymphocytes/immunology
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  • 49
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    Regulatory T cell clones induced by oral tolerance: suppression of autoimmune encephalomyelitis (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-26
    Description: Experimental autoimmune encephalomyelitis (EAE) is a cell-mediated autoimmune disease that serves as an animal model for multiple sclerosis. Oral administration of myelin basic protein (MBP) suppresses EAE by inducing peripheral tolerance. T cell clones were isolated from the mesenteric lymph nodes of SJL mice that had been orally tolerized to MBP. These clones were CD4+ and were structurally identical to T helper cell type 1 (TH1) encephalitogenic CD4+ clones in T cell receptor usage, major histocompatibility complex restriction, and epitope recognition. However, they produced transforming growth factor-beta with various amounts of interleukin-4 and interleukin-10 and suppressed EAE induced with either MBP or proteolipid protein. Thus, mucosally derived TH2-like clones induced by oral antigen can actively regulate immune responses in vivo and may represent a different subset of T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Y -- Kuchroo, V K -- Inobe, J -- Hafler, D A -- Weiner, H L -- AR/A143220/AR/NIAMS NIH HHS/ -- NS29352/NS/NINDS NIH HHS/ -- NS30843/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1994 Aug 26;265(5176):1237-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7520605" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Amino Acid Sequence ; Animals ; CD4-Positive T-Lymphocytes/*immunology ; Clone Cells ; Encephalomyelitis, Autoimmune, Experimental/*immunology ; Epitopes/immunology ; *Immune Tolerance ; Interleukin-10/biosynthesis ; Interleukin-4/biosynthesis ; Lymph Nodes/immunology ; Major Histocompatibility Complex ; Mesentery/immunology ; Mice ; Molecular Sequence Data ; Myelin Basic Protein/administration & dosage/*immunology ; Myelin Proteins/immunology ; Myelin Proteolipid Protein ; Receptors, Antigen, T-Cell/immunology ; Transforming Growth Factor beta/biosynthesis
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    MHC class I expression in mice lacking the proteasome subunit LMP-7 (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-26
    Description: Proteasomes degrade endogenous proteins. Two subunits, LMP-2 and LMP-7, are encoded in a region of the major histocompatibility complex (MHC) that is critical for class I-restricted antigen presentation. Mice with a targeted deletion of the gene encoding LMP-7 have reduced levels of MHC class I cell-surface expression and present the endogenous antigen HY inefficiently; addition of peptides to splenocytes deficient in LMP-7 restores wild-type class I expression levels. This demonstrates the involvement of LMP-7 in the MHC class I presentation pathway and suggests that LMP-7 functions as an integral part of the peptide supply machinery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fehling, H J -- Swat, W -- Laplace, C -- Kuhn, R -- Rajewsky, K -- Muller, U -- von Boehmer, H -- New York, N.Y. -- Science. 1994 Aug 26;265(5176):1234-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Basel Institute for Immunology, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066463" target="_blank"〉PubMed〈/a〉
    Keywords: *ATP-Binding Cassette Transporters ; Amino Acid Sequence ; Animals ; Antigen Presentation ; Antigen-Presenting Cells/immunology ; Base Sequence ; Carrier Proteins/genetics ; *Cysteine Endopeptidases ; Female ; Gene Deletion ; H-2 Antigens/*biosynthesis/immunology ; H-Y Antigen/immunology ; Lymphocytes/immunology ; Male ; Mice ; Mice, Knockout ; Molecular Sequence Data ; *Multienzyme Complexes ; Proteasome Endopeptidase Complex ; Proteins/genetics/*physiology
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  • 51
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    Dependence of enhancer-mediated transcription of the immunoglobulin mu gene on nuclear matrix attachment regions (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-26
    Description: Transcription of the immunoglobulin mu heavy chain locus is regulated by an intronic enhancer that is flanked on both sides by nuclear matrix attachment regions (MARs). These MARs have now been shown to be essential for transcription of a rearranged mu gene in transgenic B lymphocytes, but they were not required in stably transfected tissue culture cells. Normal rates of transcriptional initiation at a variable region promoter and the formation of an extended deoxyribonuclease I (DNase I)--sensitive chromatin domain were dependent on MARs, although DNase I hypersensitivity at the enhancer was detected in the absence of MARs. Thus, transcriptional activation of the mu gene during normal lymphoid development requires a synergistic collaboration between the enhancer and flanking MARs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Forrester, W C -- van Genderen, C -- Jenuwein, T -- Grosschedl, R -- New York, N.Y. -- Science. 1994 Aug 26;265(5176):1221-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of California at San Francisco (UCSF) 94143-0414.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066460" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/immunology ; Base Sequence ; Cell Line ; *Enhancer Elements, Genetic ; Gene Rearrangement ; *Genes, Immunoglobulin ; Immunoglobulin mu-Chains/*genetics ; Introns ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Nuclear Matrix/*metabolism ; *Regulatory Sequences, Nucleic Acid ; *Transcription, Genetic ; Transcriptional Activation ; Transfection
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  • 52
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    A specific inhibitor of the epidermal growth factor receptor tyrosine kinase (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-19
    Description: A small molecule called PD 153035 inhibited the epidermal growth factor (EGF) receptor tyrosine kinase with a 5-pM inhibition constant. The inhibitor was specific for the EGF receptor tyrosine kinase and inhibited other purified tyrosine kinases only at micromolar or higher concentrations. PD 153035 rapidly suppressed autophosphorylation of the EGF receptor at low nanomolar concentrations in fibroblasts or in human epidermoid carcinoma cells and selectively blocked EGF-mediated cellular processes including mitogenesis, early gene expression, and oncogenic transformation. PD 153035 demonstrates an increase in potency over that of other tyrosine kinase inhibitors of four to five orders of magnitude for inhibition of isolated EGF receptor tyrosine kinase and three to four orders of magnitude for inhibition of cellular phosphorylation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fry, D W -- Kraker, A J -- McMichael, A -- Ambroso, L A -- Nelson, J M -- Leopold, W R -- Connors, R W -- Bridges, A J -- New York, N.Y. -- Science. 1994 Aug 19;265(5175):1093-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Parke-Davis Pharmaceutical Research, Division of Warner-Lambert Company, Ann Arbor, MI 48105.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066447" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Cell Transformation, Neoplastic/drug effects ; Epidermal Growth Factor/pharmacology ; Fibroblast Growth Factor 2/pharmacology ; Gene Expression/drug effects ; Humans ; Kinetics ; Mice ; Mitosis/drug effects ; Phosphorylation/drug effects ; Platelet-Derived Growth Factor/pharmacology ; Protein-Tyrosine Kinases/antagonists & inhibitors ; Quinazolines/*antagonists & inhibitors ; Receptor, Epidermal Growth Factor/*antagonists & inhibitors ; Tumor Cells, Cultured ; Tyrosine/metabolism
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  • 53
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    Neurotrophic factors: two are better than one (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nishi, R -- New York, N.Y. -- Science. 1994 Aug 19;265(5175):1052-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Anatomy, Oregon Health Sciences University, Portland 97201.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066443" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Derived Neurotrophic Factor ; Cell Survival ; Chick Embryo ; Ciliary Neurotrophic Factor ; Mice ; Mice, Knockout ; Mice, Mutant Strains ; Motor Neuron Disease/*drug therapy/pathology ; Motor Neurons/*cytology/drug effects ; Nerve Growth Factors/pharmacology/*physiology ; Nerve Tissue Proteins/pharmacology/*physiology
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  • 54
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    Arrest of motor neuron disease in wobbler mice cotreated with CNTF and BDNF (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-19
    Description: Ciliary neurotrophic factor (CNTF) and brain-derived neurotrophic factor (BDNF) each promote the survival and differentiation of developing motor neurons, but do so through distinct cellular signaling pathways. Administration of either factor alone has been shown to slow, but not to arrest, progression of motor neuron dysfunction in wobbler mice, an animal model of motor neuron disease. Because CNTF and BDNF are known to synergize in vitro and in ovo, the efficacy of CNTF and BDNF cotreatment was tested in the same animal mode. Subcutaneous injection of the two factors on alternate days was found to arrest disease progression in wobbler mice for 1 month, as measured by several behavioral, physiological, and histological criteria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mitsumoto, H -- Ikeda, K -- Klinkosz, B -- Cedarbaum, J M -- Wong, V -- Lindsay, R M -- New York, N.Y. -- Science. 1994 Aug 19;265(5175):1107-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Cleveland Clinic Foundation, OH 44195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066451" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Derived Neurotrophic Factor ; Ciliary Neurotrophic Factor ; Drug Synergism ; Drug Therapy, Combination ; Mice ; Mice, Mutant Strains ; Motor Neuron Disease/*drug therapy/pathology/physiopathology ; Motor Neurons/drug effects ; Muscles/drug effects/pathology ; Nerve Fibers, Myelinated/drug effects ; Nerve Growth Factors/*therapeutic use ; Nerve Tissue Proteins/*therapeutic use ; Random Allocation
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    Fc receptors initiate the Arthus reaction: redefining the inflammatory cascade (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-19
    Description: Antibody-antigen complexes initiate the inflammatory response and are central to the pathogenesis of tissue injury. The classical model for this immunopathological cascade, the Arthus reaction, was reinvestigated with a murine strain deficient in Fc receptor expression. Despite normal inflammatory responses to other stimuli, the inflammatory response to immune complexes was markedly attenuated. These results suggest that immune complex-triggered inflammation is initiated by cell bound Fc receptors and is then amplified by cellular mediators and activated complement. These results redefine the inflammatory cascade and may offer other approaches for the study and treatment of immunological injury.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sylvestre, D L -- Ravetch, J V -- AI01067/AI/NIAID NIH HHS/ -- AI34662/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1994 Aug 19;265(5175):1095-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DeWitt Wallace Research Laboratory, Sloan-Kettering Institute, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066448" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Antibody Complex/immunology ; Arthus Reaction/*immunology ; Chemotaxis, Leukocyte ; Complement System Proteins/immunology ; Mast Cells/immunology ; Mice ; Neutrophils/physiology ; Receptors, Fc/*immunology ; Receptors, IgG/immunology
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    Generation of lymphohematopoietic cells from embryonic stem cells in culture (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-19
    Description: An efficient system was developed that induced the differentiation of embryonic stem (ES) cells into blood cells of erythroid, myeloid, and B cell lineages by coculture with the stromal cell line OP9. This cell line does not express functional macrophage colony-stimulating factor (M-CSF). The presence of M-CSF had inhibitory effects on the differentiation of ES cells to blood cells other than macrophages. Embryoid body formation or addition of exogenous growth factors was not required, and differentiation was highly reproducible even after the selection of ES cells with the antibiotic G418. Combined with the ability to genetically manipulate ES cells, this system will facilitate the study of molecular mechanisms involved in development and differentiation of hematopoietic cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakano, T -- Kodama, H -- Honjo, T -- New York, N.Y. -- Science. 1994 Aug 19;265(5175):1098-101.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Chemistry, Faculty of Medicine, Kyoto University Yoshida, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066449" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/cytology ; Base Sequence ; Cell Differentiation ; Cell Line ; Cells, Cultured ; Culture Media ; Erythrocytes/cytology ; Erythropoiesis ; Gene Rearrangement ; *Hematopoiesis ; Hematopoietic Stem Cells/*cytology ; Lymphocytes/*cytology ; Macrophage Colony-Stimulating Factor/pharmacology ; Macrophages/cytology ; Mesoderm/cytology ; Mice ; Molecular Sequence Data ; Recombinant Proteins/pharmacology ; Stromal Cells/cytology
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    Inhibition of NF-kappa B by sodium salicylate and aspirin (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-12
    Description: The transcription factor nuclear factor-kappa B (NF-kappa B) is critical for the inducible expression of multiple cellular and viral genes involved in inflammation and infection including interleukin-1 (IL-1), IL-6, and adhesion molecules. The anti-inflammatory drugs sodium salicylate and aspirin inhibited the activation of NF-kappa B, which further explains the mechanism of action of these drugs. This inhibition prevented the degradation of the NF-kappa B inhibitor, I kappa B, and therefore NF-kappa B was retained in the cytosol. Sodium salicylate and aspirin also inhibited NF-kappa B-dependent transcription from the Ig kappa enhancer and the human immunodeficiency virus (HIV) long terminal repeat (LTR) in transfected T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kopp, E -- Ghosh, S -- R01 AI 33443-01A1/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1994 Aug 12;265(5174):956-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Yale University School of Medicine, New Haven, CT 06536.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8052854" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aspirin/*pharmacology ; Cell Line ; Enhancer Elements, Genetic ; Gene Expression/drug effects ; Genes, Reporter ; HIV Long Terminal Repeat ; HIV-1/genetics ; Humans ; Immunoglobulin kappa-Chains/genetics ; Lipopolysaccharides/pharmacology ; Mice ; NF-kappa B/*antagonists & inhibitors/metabolism ; Phosphorylation ; Promoter Regions, Genetic ; Protein Biosynthesis/drug effects ; Proto-Oncogene Proteins/metabolism ; Sodium Salicylate/*pharmacology ; T-Lymphocytes/metabolism ; Transcription Factor RelB ; *Transcription Factors ; Transfection ; Tumor Cells, Cultured
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    T cell receptor-MHC class I peptide interactions: affinity, kinetics, and specificity (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-12
    Description: The critical discriminatory event in the activation of T lymphocytes bearing alpha beta T cell receptors (TCRs) is their interaction with a molecular complex consisting of a peptide bound to a major histocompatibility complex (MHC)-encoded class I or class II molecule on the surface of an antigen-presenting cell. The kinetics of binding were measured of a purified TCR to molecular complexes of a purified soluble analog of the murine MHC class I molecule H-2Ld (sH-2Ld) and a synthetic octamer peptide p2CL in a direct, real-time assay based on surface plasmon resonance. The kinetic dissociation rate of the MHC-peptide complex from the TCR was rapid (2.6 x 10(-2) second-1, corresponding to a half-time for dissociation of approximately 27 seconds), and the kinetic association rate was 2.1 x 10(5) M-1 second-1. The equilibrium constant for dissociation was approximately 10(-7) M. These values indicate that TCRs must interact with a multivalent array of MHC-peptide complexes to trigger T cell signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corr, M -- Slanetz, A E -- Boyd, L F -- Jelonek, M T -- Khilko, S -- al-Ramadi, B K -- Kim, Y S -- Maher, S E -- Bothwell, A L -- Margulies, D H -- New York, N.Y. -- Science. 1994 Aug 12;265(5174):946-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Section, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8052850" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biosensing Techniques ; H-2 Antigens/*metabolism ; Histocompatibility Antigen H-2D ; Kinetics ; *Major Histocompatibility Complex ; Mice ; Molecular Sequence Data ; Oligopeptides/*metabolism ; Receptors, Antigen, T-Cell, alpha-beta/*metabolism ; Solubility
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    Do immunologists dream of electric mice? (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taubes, G -- New York, N.Y. -- Science. 1994 Aug 12;265(5174):886-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8052845" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/immunology/microbiology ; Animals ; *Computer Simulation ; HIV/physiology ; *Immune System ; Immunologic Memory ; Lymph Nodes/microbiology ; Macrophages/microbiology ; Mice ; Mice, SCID ; *Models, Biological ; Software
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    Transformation of mammalian cells by constitutively active MAP kinase kinase (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-12
    Description: Mitogen-activated protein (MAP) kinase kinase (MAPKK) activates MAP kinase in a signal transduction pathway that mediates cellular responses to growth and differentiation factors. Oncogenes such as ras, src, raf, and mos have been proposed to transform cells by prolonging the activated state of MAPKK and of components downstream in the signaling pathway. To test this hypothesis, constitutively active MAPKK mutants were designed that had basal activities up to 400 times greater than that of the unphosphorylated wild-type kinase. Expression of these mutants in mammalian cells activated AP-1-regulated transcription. The cells formed transformed foci, grew efficiently in soft agar, and were highly tumorigenic in nude mice. These findings indicate that constitutive activation of MAPKK is sufficient to promote cell transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mansour, S J -- Matten, W T -- Hermann, A S -- Candia, J M -- Rong, S -- Fukasawa, K -- Vande Woude, G F -- Ahn, N G -- GM48521/GM/NIGMS NIH HHS/ -- N01-CO-74101/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Aug 12;265(5174):966-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of Colorado, Boulder 80309.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8052857" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Cell Division ; Cell Line ; *Cell Transformation, Neoplastic ; Enzyme Activation ; Genes, mos ; Mice ; Mitogen-Activated Protein Kinase 1 ; Mitogen-Activated Protein Kinase Kinases ; Molecular Sequence Data ; Mutation ; Phosphorylation ; Protein Kinases/genetics/*metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Protein-Tyrosine Kinases/metabolism ; Proto-Oncogene Proteins c-jun/metabolism ; Signal Transduction ; Transfection
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    A MAP kinase targeted by endotoxin and hyperosmolarity in mammalian cells (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-05
    Description: Mammalian cells respond to endotoxic lipopolysaccharide (LPS) by activation of protein kinase cascades that lead to new gene expression. A protein kinase, p38, that was tyrosine phosphorylated in response to LPS, was cloned. The p38 enzyme and the product of the Saccharomyces cerevisiae HOG1 gene, which are both members of the mitogen-activated protein (MAP) kinase family, have sequences at and adjacent to critical phosphorylation sites that distinguish these proteins from most other MAP kinase family members. Both HOG1 and p38 are tyrosine phosphorylated after extracellular changes in osmolarity. These findings link a signaling pathway in mammalian cells with a pathway in yeast that is responsive to physiological stress.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Han, J -- Lee, J D -- Bibbs, L -- Ulevitch, R J -- AI15136/AI/NIAID NIH HHS/ -- GM28485/GM/NIGMS NIH HHS/ -- GM37696/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 Aug 5;265(5173):808-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Scripps Research Institute, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7914033" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium-Calmodulin-Dependent Protein Kinases/*chemistry/genetics ; Cell Line ; Endotoxins/*pharmacology ; Genetic Complementation Test ; Lipopolysaccharides/pharmacology ; Macrophages, Peritoneal/enzymology ; Mice ; Mice, Inbred C3H ; *Mitogen-Activated Protein Kinases ; Molecular Sequence Data ; Osmotic Pressure ; Paclitaxel/pharmacology ; Saccharomyces cerevisiae/genetics ; *Saccharomyces cerevisiae Proteins ; Sequence Homology, Amino Acid ; Water-Electrolyte Balance/*physiology ; p38 Mitogen-Activated Protein Kinases
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    Homology of the eyeless gene of Drosophila to the Small eye gene in mice and Aniridia in humans (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-05
    Description: A Drosophila gene that contains both a paired box and a homeobox and has extensive sequence homology to the mouse Pax-6 (Small eye) gene was isolated and mapped to chromosome IV in a region close to the eyeless locus. Two spontaneous mutations, ey2 and eyR, contain transposable element insertions into the cloned gene and affect gene expression, particularly in the eye primordia. This indicates that the cloned gene encodes ey. The finding that ey of Drosophila, Small eye of the mouse, and human Aniridia are encoded by homologous genes suggests that eye morphogenesis is under similar genetic control in both vertebrates and insects, in spite of the large differences in eye morphology and mode of development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Quiring, R -- Walldorf, U -- Kloter, U -- Gehring, W J -- New York, N.Y. -- Science. 1994 Aug 5;265(5173):785-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, University of Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7914031" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Aniridia/*genetics ; Base Sequence ; DNA Transposable Elements/physiology ; DNA-Binding Proteins/*genetics ; Drosophila/embryology/*genetics ; *Drosophila Proteins ; Eye/chemistry ; Eye Proteins ; Genes, Homeobox ; *Homeodomain Proteins ; Humans ; Larva/genetics ; Mice ; Mice, Mutant Strains/*genetics ; Molecular Sequence Data ; Paired Box Transcription Factors ; RNA, Messenger/analysis ; Regulatory Sequences, Nucleic Acid/physiology ; Repressor Proteins ; Sequence Homology, Amino Acid
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    Neutrophil and B cell expansion in mice that lack the murine IL-8 receptor homolog (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-07-29
    Description: Interleukin-8 (IL-8) is a proinflammatory cytokine that specifically attracts and activates human neutrophils. A murine gene with a high degree of homology to the two known human IL-8 receptors was cloned and then deleted from the mouse genome by homologous recombination in embryonic stem (ES) cells. These mice, although outwardly healthy, had lymphadenopathy, resulting from an increase in B cells, and splenomegaly, resulting from an increase in metamyelocytes, band, and mature neutrophils. Thus, this receptor may participate in the expansion and development of neutrophils and B cells. This receptor was the major mediator of neutrophil migration to sites of inflammation and may provide a potential therapeutic target in inflammatory disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cacalano, G -- Lee, J -- Kikly, K -- Ryan, A M -- Pitts-Meek, S -- Hultgren, B -- Wood, W I -- Moore, M W -- New York, N.Y. -- Science. 1994 Jul 29;265(5172):682-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Genetics, Genentech, South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8036519" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*pathology ; Bone Marrow/pathology ; Cell Movement/physiology ; Chimera ; Hematopoiesis, Extramedullary/physiology ; Inflammation/*immunology ; Leukocyte Count ; Lymph Nodes/pathology ; Mice ; Mice, Inbred C57BL ; Neutrophils/*pathology ; Receptors, Interleukin/deficiency/genetics/*physiology ; Receptors, Interleukin-8B ; Recombination, Genetic ; Spleen/pathology ; Stem Cells
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    Fas and perforin pathways as major mechanisms of T cell-mediated cytotoxicity (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-07-22
    Description: Two molecular mechanisms of T cell-mediated cytotoxicity, one perforin-based, the other Fas-based, have been demonstrated. To determine the extent of their contribution to T cell-mediated cytotoxicity, a range of effector cells from normal control or perforin-deficient mice were tested against a panel of target cells with various levels of Fas expression. All cytotoxicity observed was due to either of these mechanisms, and no third mechanism was detected. Thus, the perforin- and Fas-based mechanisms may account for all T cell-mediated cytotoxicity in short-term in vitro assays.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kagi, D -- Vignaux, F -- Ledermann, B -- Burki, K -- Depraetere, V -- Nagata, S -- Hengartner, H -- Golstein, P -- New York, N.Y. -- Science. 1994 Jul 22;265(5171):528-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7518614" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD95 ; Antigens, Surface/*immunology ; Cells, Cultured ; Concanavalin A/pharmacology ; *Cytotoxicity, Immunologic ; Ionomycin/pharmacology ; Leukemia L1210 ; Lymphocyte Culture Test, Mixed ; Lymphocytic choriomeningitis virus/immunology ; Membrane Glycoproteins/*immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Molecular Sequence Data ; Perforin ; Pore Forming Cytotoxic Proteins ; T-Lymphocytes, Cytotoxic/*immunology ; Tetradecanoylphorbol Acetate/pharmacology ; Tumor Cells, Cultured
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    Association of polyomavirus middle tumor antigen with 14-3-3 proteins (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-07-22
    Description: To carry out its transformation function, the middle tumor antigen (MT) of murine polyomavirus associates with a number of cellular proteins involved in regulation of cell proliferation, including pp60c-Src, phosphatidylinositol 3-kinase, protein phosphatase 2A, Src homologous and collagen protein and growth factor receptor-binding protein 2. Here, two additional MT-associated proteins were identified as members of the 14-3-3 family of proteins. Yeast homologs of 14-3-3 proteins have recently been shown to play a role in the timing of mitosis. Thus, regulation of 14-3-3 protein function by MT may contribute to the development of neoplasia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pallas, D C -- Fu, H -- Haehnel, L C -- Weller, W -- Collier, R J -- Roberts, T M -- CA30002/CA/NCI NIH HHS/ -- CA45285/CA/NCI NIH HHS/ -- CA50661/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Jul 22;265(5171):535-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cellular and Molecular Biology, Dana-Farber Cancer Institute, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8036498" target="_blank"〉PubMed〈/a〉
    Keywords: 14-3-3 Proteins ; 3T3 Cells ; Adenosine Diphosphate Ribose/metabolism ; Amino Acid Sequence ; Animals ; Antigens, Polyomavirus Transforming/immunology/*metabolism ; *Cell Division ; Cell Line ; *Cell Transformation, Neoplastic ; *Cell Transformation, Viral ; Humans ; Immune Sera ; Mice ; Molecular Sequence Data ; Nerve Tissue Proteins/chemistry/isolation & purification/*metabolism ; Poly(ADP-ribose) Polymerases/metabolism ; Precipitin Tests ; *Tyrosine 3-Monooxygenase
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    Endothelial NOS and the blockade of LTP by NOS inhibitors in mice lacking neuronal NOS (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-07-22
    Description: Long-term potentiation (LTP) is a persistent increase in synaptic strength implicated in certain forms of learning and memory. In the CA1 region of the hippocampus, LTP is thought to involve the release of one or more retrograde messengers from the postsynaptic cell that act on the presynaptic terminal to enhance transmitter release. One candidate retrograde messenger is the membrane-permeant gas nitric oxide (NO), which in the brain is released after activation of the neuronal-specific NO synthase isoform (nNOS). To assess the importance of NO in hippocampal synaptic plasticity, LTP was examined in mice where the gene encoding nNOS was disrupted by gene targeting. In nNOS- mice, LTP induced by weak intensity tetanic stimulation was normal except for a slight reduction in comparison to that in wild-type mice and was blocked by NOS inhibitors, just as it was in wild-type mice. Immunocytochemical studies indicate that in the nNOS- mice as in wild-type mice, the endothelial form of NOS (eNOS) is expressed in CA1 neurons. These findings suggest that eNOS, rather than nNOS, generates NO within the postsynaptic cell during LTP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Dell, T J -- Huang, P L -- Dawson, T M -- Dinerman, J L -- Snyder, S H -- Kandel, E R -- Fishman, M C -- DA-00074/DA/NIDA NIH HHS/ -- DA-00266/DA/NIDA NIH HHS/ -- MH-45923/MH/NIMH NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Jul 22;265(5171):542-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, College of Physicians and Surgeons of Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7518615" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Oxidoreductases/antagonists & inhibitors/genetics/*metabolism ; Animals ; Arginine/*analogs & derivatives/pharmacology ; Electric Stimulation ; Endothelium/enzymology ; Hippocampus/drug effects/enzymology/*physiology ; In Vitro Techniques ; *Long-Term Potentiation/drug effects ; Mice ; Mutation ; Nitric Oxide/*metabolism ; Nitric Oxide Synthase ; Nitroarginine ; Pyramidal Cells/drug effects/enzymology/*physiology ; Synaptic Transmission/drug effects
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    Gem: an induced, immediate early protein belonging to the Ras family (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-07-08
    Description: A gene encoding a 35-kilodalton guanosine triphosphate (GTP)-binding protein, Gem, was cloned from mitogen-induced human peripheral blood T cells. Gem and Rad, the product of a gene overexpressed in skeletal muscle in individuals with Type II diabetes, constitute a new family of Ras-related GTP-binding proteins. The distinct structural features of this family include the G3 GTP-binding motif, extensive amino- and carboxyl-terminal extensions beyond the Ras-related domain, and a motif that determines membrane association. Gem was transiently expressed in human peripheral blood T cells in response to mitogenic stimulation; the protein was phosphorylated on tyrosine residues and localized to the cytosolic face of the plasma membrane. Deregulated Gem expression prevented proliferation of normal and transformed 3T3 cells. These results suggest that Gem is a regulatory protein, possibly participating in receptor-mediated signal transduction at the plasma membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maguire, J -- Santoro, T -- Jensen, P -- Siebenlist, U -- Yewdell, J -- Kelly, K -- New York, N.Y. -- Science. 1994 Jul 8;265(5169):241-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7912851" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; CD4-Positive T-Lymphocytes/metabolism ; Cell Death ; Cell Division ; Cell Line ; Cell Line, Transformed ; Cell Membrane/metabolism ; GTP-Binding Proteins/chemistry/genetics/*metabolism ; Genes, ras ; Guanosine Triphosphate/metabolism ; Humans ; Immediate-Early Proteins/chemistry/genetics/*metabolism ; Mice ; Molecular Sequence Data ; *Monomeric GTP-Binding Proteins ; Mutation ; RNA, Messenger/genetics/metabolism ; Transfection ; *ras Proteins
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    Resistance to murine acquired immunodeficiency syndrome (MAIDS) (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-07-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilmore, G L -- New York, N.Y. -- Science. 1994 Jul 8;265(5169):264.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8093155" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Immunity, Innate/genetics ; Interleukin-4/deficiency/*immunology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Murine Acquired Immunodeficiency Syndrome/genetics/*immunology ; Retroviridae/physiology ; T-Lymphocytes, Helper-Inducer/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Induction of an olfactory memory by the activation of a metabotropic glutamate receptor (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-07-08
    Description: Female mice form an olfactory memory of male pheromones at mating; exposure to the pheromones of a strange male after that mating will block pregnancy. The formation of this memory is mediated by the accessory olfactory system, in which an increase in norepinephrine after mating reduces inhibitory transmission of gamma-aminobutyric acid from the granule cells to the mitral cells. This study shows that the activation of mGluR2, a metabotropic glutamate receptor that suppresses the gamma-aminobutyric acid inhibition of the mitral cells, permits the formation of a specific olfactory memory without the occurrence of mating by infusion of mGluR2 agonists into the female's accessory olfactory bulb. This memory faithfully reflects the memory formed at mating.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaba, H -- Hayashi, Y -- Higuchi, T -- Nakanishi, S -- New York, N.Y. -- Science. 1994 Jul 8;265(5169):262-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Kochi Medical School, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8023145" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cycloleucine/analogs & derivatives/pharmacology ; Cyclopropanes/pharmacology ; Estrus ; Female ; Glycine/analogs & derivatives/pharmacology ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred CBA ; Neuronal Plasticity ; Olfactory Bulb/cytology/*physiology ; Phentolamine/pharmacology ; Pheromones/*pharmacology ; Pregnancy ; Pregnancy, Animal/drug effects/*physiology ; Receptors, AMPA/metabolism ; Receptors, Glutamate/*metabolism ; Receptors, Kainic Acid/metabolism ; Sexual Behavior, Animal/drug effects/*physiology ; gamma-Aminobutyric Acid/metabolism
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    Resistance to murine acquired immunodeficiency syndrome (MAIDS) (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-07-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morawetz, R A -- Doherty, T M -- Giese, N A -- Hartley, J W -- Muller, W -- Kuhn, R -- Rajewsky, K -- Coffman, R -- Morse, H C 3rd -- New York, N.Y. -- Science. 1994 Jul 8;265(5169):264-6; author reply 267.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8023146" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cytokines/genetics/immunology ; Disease Susceptibility ; Immunity, Innate/genetics ; Interleukin-4/deficiency/genetics/*immunology ; Mice ; Mice, Inbred Strains ; Mice, Mutant Strains ; Mice, Transgenic ; Murine Acquired Immunodeficiency Syndrome/genetics/*immunology ; T-Lymphocytes, Helper-Inducer/immunology
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  • 71
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    Deletion of a DNA polymerase beta gene segment in T cells using cell type-specific gene targeting (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-07-01
    Description: Deletion of the promoter and the first exon of the DNA polymerase beta gene (pol beta) in the mouse germ line results in a lethal phenotype. With the use of the bacteriophage-derived, site-specific recombinase Cre in a transgenic approach, the same mutation can be selectively introduced into a particular cellular compartment-in this case, T cells. The impact of the mutation on those cells can then be analyzed because the mutant animals are viable.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gu, H -- Marth, J D -- Orban, P C -- Mossmann, H -- Rajewsky, K -- New York, N.Y. -- Science. 1994 Jul 1;265(5168):103-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genetics, University of Cologne, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8016642" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA Nucleotidyltransferases/genetics/metabolism ; DNA Polymerase I/*genetics/metabolism ; Female ; *Gene Deletion ; Genetic Engineering/*methods ; Homozygote ; *Integrases ; Male ; Mice ; Mice, Knockout ; Mice, Transgenic ; Mutation ; Recombination, Genetic ; Stem Cells/enzymology ; T-Lymphocytes/*enzymology ; Transfection ; *Viral Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 72
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    Knockout mice: round two (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-07-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1994 Jul 1;265(5168):26-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8016653" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antiporters/genetics ; DNA Nucleotidyltransferases/genetics/metabolism ; DNA Polymerase I/genetics/metabolism ; Gene Deletion ; Gene Expression Regulation ; Genetic Engineering/*methods ; *Integrases ; Mice ; Mice, Knockout/*genetics ; Mice, Transgenic ; Repressor Proteins/genetics ; Stem Cells ; T-Lymphocytes/enzymology ; Tetracycline/pharmacology ; *Viral Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 73
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    Sequestration of GPI-anchored proteins in caveolae triggered by cross-linking (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-24
    Description: Glycosyl-phosphatidylinositol (GPI)-anchored proteins have been reported to reside in clusters collected over small membrane invaginations called caveolae. The detection of different GPI-anchored proteins with fluorescently labeled monoclonal antibodies showed that these proteins are not constitutively concentrated in caveolae; they enter these structures independently after cross-linking with polyclonal secondary antibodies. Analysis of the cell surface distribution of the GPI-anchored folate receptor by electron microscopy confirms these observations. Thus, multimerization of GPI-anchored proteins regulates their sequestration in caveolae, but in the absence of agents that promote clustering they are diffusely distributed over the plasma membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mayor, S -- Rothberg, K G -- Maxfield, F R -- DK27083/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1994 Jun 24;264(5167):1948-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, College of Physicians and Surgeons, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7516582" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Antibodies, Monoclonal ; Antigens, CD/analysis/immunology/metabolism ; Antigens, CD55 ; Antigens, Surface/analysis/immunology/metabolism ; Antigens, Thy-1 ; Carrier Proteins/analysis/immunology/*metabolism ; Caveolin 1 ; *Caveolins ; Cell Membrane/*metabolism/ultrastructure ; Fluorescent Antibody Technique ; Folate Receptors, GPI-Anchored ; Folic Acid/metabolism ; Glycosylphosphatidylinositols/analysis/*metabolism ; Humans ; Immunoglobulin G/metabolism ; Membrane Glycoproteins/analysis/immunology/metabolism ; Membrane Proteins/analysis ; Mice ; Microscopy, Electron ; *Receptors, Cell Surface ; Tumor Cells, Cultured
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  • 74
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    Functional role of type I and type II interferons in antiviral defense (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-24
    Description: Mice lacking the known subunit of the type I interferon (IFN) receptor were completely unresponsive to type I IFNs, suggesting that this receptor chain is essential for type I IFN-mediated signal transduction. These mice showed no overt anomalies but were unable to cope with viral infections, despite otherwise normal immune responses. Comparison of mice lacking either type I or type II IFN receptors showed that, at least in response to some viruses, both IFN systems are essential for antiviral defense and are functionally nonredundant.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Muller, U -- Steinhoff, U -- Reis, L F -- Hemmi, S -- Pavlovic, J -- Zinkernagel, R M -- Aguet, M -- New York, N.Y. -- Science. 1994 Jun 24;264(5167):1918-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology I, University of Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8009221" target="_blank"〉PubMed〈/a〉
    Keywords: Alphavirus Infections/immunology ; Animals ; Antibodies, Viral/biosynthesis ; Disease Susceptibility ; Immunity, Innate ; Interferon Type I/*physiology ; Interferon-gamma/*physiology ; Lymphocytic Choriomeningitis/immunology ; Membrane Proteins ; Mice ; Mutation ; Receptor, Interferon alpha-beta ; Receptors, Interferon/genetics/*physiology ; Rhabdoviridae Infections/immunology ; Semliki forest virus ; Signal Transduction ; T-Lymphocytes/immunology ; Vesicular stomatitis Indiana virus ; Virus Diseases/*immunology
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    Maternal rescue of transforming growth factor-beta 1 null mice (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-24
    Description: Maternal sources of transforming growth factor-beta 1 (TGF-beta 1) are shown here to contribute to the normal appearance and perinatal survival of TGF-beta 1 null newborn mice. Labeled TGF-beta 1 crossed the placenta and was recovered intact from various tissues after oral administration to mouse pups. TGF beta-1 protein was also detected in cells recovered from breast milk. In immunohistochemical analyses, TGF-beta 1 null embryos and null newborn pups born to TGF-beta 1 heterozygotes stained positive for TGF-beta 1, whereas those born to a null female were negative and had severe cardiac abnormalities. These results suggest an important role for maternal sources of TGF-beta 1 during development and, more generally, provide evidence for maternal rescue of targeted gene disruption in the fetus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Letterio, J J -- Geiser, A G -- Kulkarni, A B -- Roche, N S -- Sporn, M B -- Roberts, A B -- New York, N.Y. -- Science. 1994 Jun 24;264(5167):1936-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chemoprevention, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8009224" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Embryonic and Fetal Development ; Female ; Fetus/*metabolism ; Heart Defects, Congenital/etiology ; Heterozygote ; Homozygote ; *Maternal-Fetal Exchange ; Mice ; Milk/chemistry ; Pregnancy ; Transforming Growth Factor beta/analysis/biosynthesis/*metabolism
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    Involvement of the IRF-1 transcription factor in antiviral responses to interferons (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-24
    Description: The mechanisms underlying interferon (IFN)-induced antiviral states are not well understood. Interferon regulatory factor-1 (IRF-1) is an IFN-inducible transcriptional activator, whereas IRF-2 suppresses IRF-1 action. The inhibition of encephalomyocarditis virus (EMCV) replication by IFN-alpha and especially by IFN-gamma was impaired in cells from mice with a null mutation in the IRF-1 gene (IRF-1-/- mice). The IRF-1-/- mice were less resistant than normal mice to EMCV infection, as revealed by accelerated mortality and a larger virus titer in target organs. The absence of IRF-1 did not clearly affect replication of two other types of viruses. Thus, IRF-1 is necessary for the antiviral action of IFNs against some viruses, but IFNs activate multiple activation pathways through diverse target genes to induce the antiviral state.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kimura, T -- Nakayama, K -- Penninger, J -- Kitagawa, M -- Harada, H -- Matsuyama, T -- Tanaka, N -- Kamijo, R -- Vilcek, J -- Mak, T W -- R35CA49731/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Jun 24;264(5167):1921-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular and Cellular Biology, Osaka University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8009222" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cardiovirus Infections/*immunology/microbiology ; Cells, Cultured ; DNA-Binding Proteins/genetics/*physiology ; Encephalomyocarditis virus/physiology ; Gene Expression Regulation ; Interferon Regulatory Factor-1 ; Interferon-alpha/*pharmacology ; Interferon-gamma/*pharmacology ; Mice ; Mutation ; Phosphoproteins/genetics/*physiology ; Simplexvirus/physiology ; Transcription Factors/genetics/*physiology ; Vesicular stomatitis Indiana virus/physiology ; *Virus Replication
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    Forward and reverse genetic approaches to behavior in the mouse (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-06-17
    Description: Modern molecular genetic and genomic approaches are revolutionizing the study of behavior in the mouse. "Reverse genetics" (from gene to phenotype) with targeted gene transfer provides a powerful tool to dissect behavior and has been used successfully to study the effects of null mutations in genes implicated in the regulation of long-term potentiation and spatial learning in mice. In addition, "forward genetics" (from phenotype to gene) with high-efficiency mutagenesis in the mouse can uncover unknown genes and has been used to isolate a behavioral mutant of the circadian system. With the recent availability of high-density genetic maps and physical mapping resources, positional cloning of virtually any mutation is now feasible in the mouse. Together, these approaches permit a molecular analysis of both known and previously unknown genes regulating behavior.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3830945/" 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/PMC3830945/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, J S -- Pinto, L H -- Vitaterna, M H -- EY08467/EY/NEI NIH HHS/ -- MH39592/MH/NIMH NIH HHS/ -- MH49241/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- etc. -- New York, N.Y. -- Science. 1994 Jun 17;264(5166):1724-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology and Physiology, Northwestern University, Evanston, IL 60208.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8209253" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; Circadian Rhythm/genetics ; Female ; *Genetic Techniques ; Genetics, Behavioral/*methods ; Learning ; Long-Term Potentiation ; Male ; Mice ; Mice, Inbred Strains ; Mice, Knockout ; Mutagenesis
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    Mouse model found for ALS (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-06-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J -- New York, N.Y. -- Science. 1994 Jun 17;264(5166):1663-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8209242" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/enzymology/*genetics ; Animals ; *Disease Models, Animal ; Mice ; *Mice, Transgenic ; Mutation ; Superoxide Dismutase/*genetics/metabolism
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    From fruit flies, rats, mice: evidence of genetic influence (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1994 Jun 17;264(5166):1690-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8209247" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression ; Alcoholism/genetics ; Animals ; *Behavior, Animal ; Crosses, Genetic ; Drosophila/genetics ; Drosophila Proteins ; Genes ; Genes, Insect ; Genetic Markers ; Genetic Techniques ; *Genetics, Behavioral/methods ; Humans ; Learning ; Mice ; Nuclear Proteins/genetics ; Period Circadian Proteins ; Rats
    Print ISSN: 0036-8075
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  • 80
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    Genetic animal models of alcohol and drug abuse (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-17
    Description: Behavioral and pharmacological responses of selectively bred and inbred rodent lines have been analyzed to elucidate many features of drug sensitivity and the adverse effects of drugs, the underlying mechanisms of drug tolerance and dependence, and the motivational states underlying drug reward and aversion. Genetic mapping of quantitative trait loci (QTLs) has been used to identify provisional chromosomal locations of genes influencing such pharmacological responses. Recent advances in transgenic technology, representational difference analysis, and other molecular methods now make feasible the positional cloning of QTLs that influence sensitivity to drugs of abuse. This marks a new period of synthesis in pharmacogenetic research, in which networks of drug-related behaviors, their underlying pharmacological, physiological, and biochemical mechanisms, and particular genomic regions of interest are being identified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crabbe, J C -- Belknap, J K -- Buck, K J -- AA06243/AA/NIAAA NIH HHS/ -- AA08621/AA/NIAAA NIH HHS/ -- DA05228/DA/NIDA NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Jun 17;264(5166):1715-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Service, Veterans Administration (VA) Medical Center, Portland, OR 97201.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8209252" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/*genetics ; Animals ; Animals, Genetically Modified ; Chromosome Mapping ; *Disease Models, Animal ; Ethanol/pharmacology ; Genetic Techniques ; Mice ; Mice, Inbred Strains ; Oligonucleotides, Antisense/pharmacology ; Rats ; Rats, Inbred Strains ; Reward ; Substance-Related Disorders/*genetics
    Print ISSN: 0036-8075
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    Motor neuron degeneration in mice that express a human Cu,Zn superoxide dismutase mutation (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-17
    Description: Mutations of human Cu,Zn superoxide dismutase (SOD) are found in about 20 percent of patients with familial amyotrophic lateral sclerosis (ALS). Expression of high levels of human SOD containing a substitution of glycine to alanine at position 93--a change that has little effect on enzyme activity--caused motor neuron disease in transgenic mice. The mice became paralyzed in one or more limbs as a result of motor neuron loss from the spinal cord and died by 5 to 6 months of age. The results show that dominant, gain-of-function mutations in SOD contribute to the pathogenesis of familial ALS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gurney, M E -- Pu, H -- Chiu, A Y -- Dal Canto, M C -- Polchow, C Y -- Alexander, D D -- Caliendo, J -- Hentati, A -- Kwon, Y W -- Deng, H X -- New York, N.Y. -- Science. 1994 Jun 17;264(5166):1772-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Molecular Biology, Northwestern University Medical School, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8209258" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/enzymology/*genetics/pathology ; Animals ; Brain/enzymology ; Disease Models, Animal ; Female ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Motor Endplate/pathology ; Motor Neuron Disease/enzymology/*genetics/pathology ; Motor Neurons/enzymology/pathology ; Muscles/innervation/pathology ; Mutation ; Pedigree ; Spinal Cord/pathology ; Superoxide Dismutase/*genetics/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 82
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    Inhibition of hepatic chylomicron remnant uptake by gene transfer of a receptor antagonist (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-03
    Description: The low density lipoprotein receptor-related protein (LRP) has been proposed to mediate in concert with the LDL receptor (LDLR) the uptake of dietary lipoproteins into the hepatocytes. This hypothesis was tested by transient inactivation of LRP in vivo. Receptor-associated protein (RAP), a dominant negative regulator of LRP function, was transferred by an adenoviral vector to the livers of mice lacking LDLR (LDLR-/-). The inactivation of LRP by RAP was associated with a marked accumulation of chylomicron remnants in LDLR-/- mice and to a lesser degree in normal mice, suggesting that both LDLR and LRP are involved in remnant clearance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willnow, T E -- Sheng, Z -- Ishibashi, S -- Herz, J -- HL20948/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Jun 3;264(5164):1471-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas 75235.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7515194" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics ; Animals ; Apolipoprotein B-48 ; Apolipoproteins B/*metabolism ; Carrier Proteins/genetics/*physiology ; Cholesterol/blood ; Chylomicrons/blood/*metabolism ; Gene Transfer Techniques ; Genetic Vectors ; Glycoproteins/genetics/*physiology ; LDL-Receptor Related Protein-Associated Protein ; Liver/*metabolism ; Low Density Lipoprotein Receptor-Related Protein-1 ; Male ; Mice ; Mice, Inbred C57BL ; Receptors, Immunologic/antagonists & inhibitors/*metabolism ; Receptors, LDL/metabolism ; Triglycerides/blood ; alpha-Macroglobulins/metabolism
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  • 83
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    Genome mapping. Closing in on human and mouse maps (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Service, R F -- New York, N.Y. -- Science. 1994 Jun 3;264(5164):1404.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8197452" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Mapping ; Genetic Markers ; *Genome, Human ; Humans ; Mice
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 84
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    Reversal of terminal differentiation mediated by p107 in Rb-/- muscle cells (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-03
    Description: The terminal differentiation of mammalian muscle cells requires the tumor suppressor retinoblastoma protein (Rb). Unlike their wild-type counterparts, multinucleated myotubes from mouse cells deficient in Rb (Rb-/-) were induced by serum to re-enter the cell cycle. Development of the myogenic phenotype in Rb-/- cells correlated with increased expression of p107, which interacted with myogenic transcription factors. Serum-induced cell cycle reentry, on the other hand, correlated with decreased p107 expression. Thus, although p107 could substitute for Rb as a cofactor for differentiation, it could not maintain the terminally differentiated state in Rb-/- myotubes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schneider, J W -- Gu, W -- Zhu, L -- Mahdavi, V -- Nadal-Ginard, B -- New York, N.Y. -- Science. 1994 Jun 3;264(5164):1467-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cardiology, Children's Hospital, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8197461" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood ; Cell Cycle ; Cell Differentiation ; Cell Line ; Culture Media ; Gene Expression ; Helix-Loop-Helix Motifs ; Humans ; Mice ; Muscles/*cytology/metabolism ; Myogenin/metabolism ; *Nuclear Proteins ; Proteins/genetics/*physiology ; Recombinant Fusion Proteins/metabolism ; Retinoblastoma Protein/genetics/*physiology ; Retinoblastoma-Like Protein p107 ; Transcriptional Activation ; Transfection ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 85
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    Prevention of lipopolysaccharide-induced lethal toxicity by tyrosine kinase inhibitors (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-27
    Description: Septic shock results from excessive stimulation of the host immune system, especially macrophages, by lipopolysaccharide (LPS), or endotoxin, which resides on the outer membrane of bacteria. Protein tyrosine kinase inhibitors of the tyrphostin AG 126 family protect mice against LPS-induced lethal toxicity. The protection correlates with the ability of these agents to block LPS-induced production of tumor necrosis factor alpha (TNF-alpha) and nitric oxide in macrophages as well as LPS-induced production of TNF-alpha in vivo. Furthermore, this inhibitory effect correlated with the potency of AG 126 to block LPS-induced tyrosine phosphorylation of a p42MAPK protein substrate in the murine macrophage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novogrodsky, A -- Vanichkin, A -- Patya, M -- Gazit, A -- Osherov, N -- Levitzki, A -- New York, N.Y. -- Science. 1994 May 27;264(5163):1319-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Felsenstein Medical Research Center, Petach Tikva, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8191285" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzylidene Compounds/*pharmacology ; Biological Assay ; Cell Line ; Cell Survival/drug effects ; Dose-Response Relationship, Drug ; Enzyme-Linked Immunosorbent Assay ; Female ; Lipopolysaccharides/*toxicity ; Macrophage Activation ; Macrophages, Peritoneal/*drug effects/metabolism ; Mice ; Mice, Inbred C57BL ; Mitogen-Activated Protein Kinase 1 ; Nitric Oxide/*biosynthesis ; Nitriles/*pharmacology ; Phosphorylation ; Protein-Serine-Threonine Kinases/metabolism ; Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Tumor Necrosis Factor-alpha/analysis/*biosynthesis/toxicity ; *Tyrphostins
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  • 86
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    Interaction of MHC class I molecules with the transporter associated with antigen processing (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-27
    Description: The transporter associated with antigen processing (TAP) delivers cytosolic peptides into the endoplasmic reticulum (ER) where they bind to nascent class 1 histocompatibility molecules. Class 1-peptide complexes are then displayed at the cell surface for recognition by cytotoxic T lymphocytes. Immunoprecipitation of either TAP or class 1 molecules revealed an association between the transporter and diverse class 1 products. TAP bound preferentially to heterodimers of the class 1 heavy chain and beta 2-microglobulin, and the complex subsequently dissociated in parallel with transport of class 1 molecules from the ER to the Golgi apparatus. The TAP-class 1 complexes could also be dissociated in vitro by the addition of class 1-binding peptides. The association of class 1 molecules with TAP likely promotes efficient capture of peptides before their exposure to the lumen of the ER.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suh, W K -- Cohen-Doyle, M F -- Fruh, K -- Wang, K -- Peterson, P A -- Williams, D B -- New York, N.Y. -- Science. 1994 May 27;264(5163):1322-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8191286" target="_blank"〉PubMed〈/a〉
    Keywords: *ATP-Binding Cassette Transporters ; Amino Acid Sequence ; Animals ; *Antigen Presentation ; Biological Transport ; Carrier Proteins/immunology/*metabolism ; Cell Line ; Endoplasmic Reticulum/metabolism ; Golgi Apparatus/metabolism ; H-2 Antigens/*metabolism ; Immune Sera ; Mice ; Molecular Sequence Data ; Precipitin Tests ; Protein Binding ; beta 2-Microglobulin/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 87
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    Antibody catalyzed cationic cyclization (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-27
    Description: Two major goals for the design of new catalysts are the facilitation of chemical transformations and control of product outcome. An antibody has been induced that efficiently catalyzes a cationic cyclization in which an acyclic olefinic sulfonate ester substrate is converted almost exclusively (98 percent) to a cyclic alcohol. The key to the catalysis of the reaction and the restriction of the product complexity is the use of antibody binding energy to rigidly enforce a concerted mechanism in accord with the design of the hapten. Thus, the ability to direct binding energy allows the experimenter to dictate a reaction mechanism which is an otherwise difficult task in chemistry. New catalysts for cationic cyclization may be of general use in the formation of carbon-carbon and carbon-heteroatom bonds leading to multi-ring molecules including steroids and heterocyclic compounds.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, T -- Janda, K D -- Ashley, J A -- Lerner, R A -- GM-43858/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 May 27;264(5163):1289-93.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Scripps Research Institute, Department of Molecular Biology, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8191282" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Catalytic/*chemistry ; Antibodies, Monoclonal/chemistry ; Catalysis ; Cations/*chemistry ; Chromatography, Gas ; Cyclization ; Haptens ; Kinetics ; Mice ; Organosilicon Compounds/*chemistry ; Sulfanilic Acids/*chemistry
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 88
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    Candidate gene associated with a mutation causing recessive polycystic kidney disease in mice (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-27
    Description: A line of transgenic mice was generated that contains an insertional mutation causing a phenotype similar to human autosomal recessive polycystic kidney disease. Homozygotes displayed a complex phenotype that included bilateral polycystic kidneys and an unusual liver lesion. The mutant locus was cloned and characterized through use of the transgene as a molecular marker. Additionally, a candidate polycystic kidney disease (PKD) gene was identified whose structure and expression are directly associated with the mutant locus. A complementary DNA derived from this gene predicted a peptide containing a motif that was originally identified in several genes involved in cell cycle control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moyer, J H -- Lee-Tischler, M J -- Kwon, H Y -- Schrick, J J -- Avner, E D -- Sweeney, W E -- Godfrey, V L -- Cacheiro, N L -- Wilkinson, J E -- Woychik, R P -- IAG 222Y01-ES-10067/ES/NIEHS NIH HHS/ -- R01 DK45633-01/DK/NIDDK NIH HHS/ -- R01 HD25323/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 May 27;264(5163):1329-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Tennessee Graduate School of Biomedical Sciences, Biology Division, Oak Ridge National Laboratory, TN 37831-8077.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8191288" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Caenorhabditis elegans Proteins ; Crosses, Genetic ; Female ; Homozygote ; Kidney Tubules/pathology ; Liver/pathology ; Male ; Mice ; Mice, Inbred C3H ; Mice, Transgenic ; Molecular Sequence Data ; Mutagenesis, Insertional ; *Nerve Tissue Proteins ; Phenotype ; Polycystic Kidney, Autosomal Recessive/*genetics/pathology ; Proteins/chemistry/*genetics ; *Tumor Suppressor Proteins
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  • 89
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    Long-distance neuronal migration in the adult mammalian brain (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-20
    Description: During the development of the mammalian brain, neuronal precursors migrate to their final destination from their site of birth in the ventricular and subventricular zones (VZ and SVZ, respectively). SVZ cells in the walls of the lateral ventricle continue to proliferate in the brain of adult mice and can generate neurons in vitro, but their fate in vivo is unknown. Here SVZ cells from adult mice that carry a neuronal-specific transgene were grafted into the brain of adult recipients. In addition, the fate of endogenous SVZ cells was examined by microinjection of tritiated thymidine or a vital dye that labeled a discrete population of SVZ cells. Grafted and endogenous SVZ cells in the lateral ventricle of adult mice migrate long distances and differentiate into neurons in the olfactory bulb.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lois, C -- Alvarez-Buylla, A -- NS 24478/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1994 May 20;264(5162):1145-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8178174" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/cytology ; Brain Tissue Transplantation ; Cell Differentiation ; Cell Division ; Cell Movement ; Cell Transplantation ; Cerebral Ventricles/*cytology ; Genes, Reporter ; Mice ; Mice, Inbred Strains ; Mice, Transgenic ; Microinjections ; Neurons/*cytology/metabolism ; Olfactory Bulb/*cytology ; beta-Galactosidase/analysis/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 90
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    CD26 antigen and HIV fusion? (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alizon, M -- Dragic, T -- New York, N.Y. -- Science. 1994 May 20;264(5162):1161-2; author reply 1162-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7909962" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Antigens, CD4/*physiology ; Antigens, Differentiation, T-Lymphocyte/*physiology ; Base Sequence ; *Cell Fusion ; Dipeptidyl Peptidase 4 ; Giant Cells/physiology ; HIV-1/*physiology ; Humans ; Mice ; Molecular Sequence Data ; Transfection
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  • 91
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    Role of bone marrow-derived cells in presenting MHC class I-restricted tumor antigens (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-13
    Description: Many tumors express tumor-specific antigens capable of being presented to CD8+ T cells by major histocompatibility complex (MHC) class I molecules. Antigen presentation models predict that the tumor cell itself should present these antigens to T cells. However, when conditions for the priming of tumor-specific responses were examined in mice, no detectable presentation of MHC class I-restricted tumor antigens by the tumor itself was found. Rather, tumor antigens were exclusively presented by host bone marrow-derived cells. Thus, MHC class I-restricted antigens are efficiently transferred in vivo to bone marrow-derived antigen-presenting cells, which suggests that human leukocyte antigen matching may be less critical in the application of tumor vaccines than previously thought.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, A Y -- Golumbek, P -- Ahmadzadeh, M -- Jaffee, E -- Pardoll, D -- Levitsky, H -- New York, N.Y. -- Science. 1994 May 13;264(5161):961-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7513904" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Presenting Cells/*immunology ; Antigens, Neoplasm/*immunology ; Bone Marrow/immunology ; Bone Marrow Cells ; Colonic Neoplasms/immunology ; Epitopes ; Female ; Granulocyte-Macrophage Colony-Stimulating Factor/genetics/immunology ; H-2 Antigens/immunology ; Histocompatibility Antigens Class I/*immunology ; Melanoma, Experimental/immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Nucleocapsid Proteins ; *Nucleoproteins ; T-Lymphocytes, Cytotoxic/*immunology ; Tumor Cells, Cultured ; Viral Core Proteins/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 92
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    Cloning of a Grb2 isoform with apoptotic properties (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-13
    Description: Growth factor receptor-bound protein 2 (Grb2) links tyrosine-phosphorylated proteins to a guanine nucleotide releasing factor of the son of sevenless (Sos) class by attaching to the former by its Src homology 2 (SH2) moiety and to the latter by its SH3 domains. An isoform of grb2 complementary DNA (cDNA) was cloned that has a deletion in the SH2 domain. The protein encoded by this cDNA, Grb3-3, did not bind to phosphorylated epidermal growth factor receptor (EGFR) but retained functional SH3 domains and inhibited EGF-induced transactivation of a Ras-responsive element. The messenger RNA encoding Grb3-3 was expressed in high amounts in the thymus of rats at an age when massive negative selection of thymocytes occurs. Microinjection of Grb3-3 into Swiss 3T3 fibroblasts induced apoptosis. These findings indicate that Grb3-3, by acting as a dominant negative protein over Grb2 and by suppressing proliferative signals, may trigger active programmed cell death.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fath, I -- Schweighoffer, F -- Rey, I -- Multon, M C -- Boiziau, J -- Duchesne, M -- Tocque, B -- New York, N.Y. -- Science. 1994 May 13;264(5161):971-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rhone-Poulenc Rorer, Centre de Recherche de Vitry-Alfortville, Vitry sur Seine, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8178156" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; *Apoptosis ; Base Sequence ; Cloning, Molecular ; Epidermal Growth Factor/pharmacology ; GRB2 Adaptor Protein ; Humans ; Mice ; Molecular Sequence Data ; Proteins/*genetics/metabolism ; RNA, Messenger/genetics/metabolism ; Rats ; Receptor, Epidermal Growth Factor/*metabolism ; T-Lymphocytes/cytology ; Thymus Gland/metabolism ; Transcriptional Activation/drug effects ; Transfection
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  • 93
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    Cure of xenografted human tumors by bispecific monoclonal antibodies and human T cells (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-06
    Description: Tumor immunotherapy should increase both the number of T cells that kill the tumor and the likelihood that those cells are activated at the tumor site. Bispecific monoclonal antibodies (Bi-mAbs) were designed that bound to a Hodgkin's tumor-associated antigen (CD30) on the tumor and to either CD3 or CD28 on the T cell. Immunodeficient mice were cured of established human tumors when mice were treated with both the CD3-CD30 and the CD28-CD30 Bi-mAbs and then given human peripheral blood lymphocytes that had been incubated with the CD3-CD30 Bi-mAb and cells that expressed CD30. The enrichment of human T cells within the tumor and the fact that established tumors can be cured may indicate in situ activation of both the T cell receptor and the costimulatory pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Renner, C -- Jung, W -- Sahin, U -- Denfeld, R -- Pohl, C -- Trumper, L -- Hartmann, F -- Diehl, V -- van Lier, R -- Pfreundschuh, M -- New York, N.Y. -- Science. 1994 May 6;264(5160):833-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medizinische Klinik und Poliklinik, Universitat des Saarlandes, Homburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8171337" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Bispecific/immunology/*therapeutic use ; Antibodies, Monoclonal ; Antigens, CD28/*immunology ; Antigens, CD3/*immunology ; Antigens, CD30/*immunology ; Hodgkin Disease/immunology/*therapy ; Humans ; Lymphocyte Activation ; Mice ; Mice, SCID ; Neoplasm Transplantation ; Receptors, Antigen, T-Cell/immunology ; T-Lymphocyte Subsets/*immunology ; Transplantation, Heterologous
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  • 94
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    Selecting the T cell receptor repertoire (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bevan, M J -- Hogquist, K A -- Jameson, S C -- New York, N.Y. -- Science. 1994 May 6;264(5160):796-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8171333" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; Antigens, CD8/analysis ; Histocompatibility Antigens Class I/*immunology ; Mice ; Mice, Knockout ; Mice, Transgenic ; Models, Biological ; Peptides/*immunology ; Receptors, Antigen, T-Cell/*immunology ; T-Lymphocytes/*immunology ; T-Lymphocytes, Cytotoxic/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
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    Mutagenesis and mapping of a mouse gene, Clock, essential for circadian behavior (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-04-29
    Description: In a search for genes that regulate circadian rhythms in mammals, the progeny of mice treated with N-ethyl-N-nitrosourea (ENU) were screened for circadian clock mutations. A semidominant mutation, Clock, that lengthens circadian period and abolishes persistence of rhythmicity was identified. Clock segregated as a single gene that mapped to the midportion of mouse chromosome 5, a region syntenic to human chromosome 4. The power of ENU mutagenesis combined with the ability to clone murine genes by map position provides a generally applicable approach to study complex behavior in mammals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3839659/" 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/PMC3839659/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vitaterna, M H -- King, D P -- Chang, A M -- Kornhauser, J M -- Lowrey, P L -- McDonald, J D -- Dove, W F -- Pinto, L H -- Turek, F W -- Takahashi, J S -- P30-CA07175/CA/NCI NIH HHS/ -- R01-DK40493/DK/NIDDK NIH HHS/ -- T32 NS071040/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- etc. -- New York, N.Y. -- Science. 1994 Apr 29;264(5159):719-25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology and Physiology, Northwestern University, Evanston, IL 60208.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8171325" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Mapping ; Chromosomes, Human, Pair 4 ; Circadian Rhythm/*genetics ; Ethylnitrosourea ; Female ; *Genes ; Genotype ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; *Mutagenesis ; Phenotype
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
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    Unraveling function in the TNF ligand and receptor families (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-04-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beutler, B -- van Huffel, C -- New York, N.Y. -- Science. 1994 Apr 29;264(5159):667-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas 75235-9050.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8171316" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Cell Division ; Gene Deletion ; Ligands ; Lymph Nodes/cytology/growth & development ; Lymphotoxin-alpha/genetics/*physiology ; Mice ; Mice, Knockout ; Phenotype ; Receptors, Tumor Necrosis Factor/genetics/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
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    Involvement of granulocyte-macrophage colony-stimulating factor in pulmonary homeostasis (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-04-29
    Description: The in vivo function of murine granulocyte-macrophage colony-stimulating factor (GM-CSF) was investigated in mice, carrying a null allele of the GM-CSF gene, that were generated by gene targeting techniques in embryonic stem cells. Although steady-state hematopoiesis was unimpaired in homozygous mutant animals, all animals developed the progressive accumulation of surfactant lipids and proteins in the alveolar space, the defining characteristic of the idiopathic human disorder pulmonary alveolar proteinosis. Extensive lymphoid hyperplasia associated with lung airways and blood vessels was also found, yet no infectious agents could be detected. These results demonstrate that GM-CSF is not an essential growth factor for basal hematopoiesis and reveal an unexpected, critical role for GM-CSF in pulmonary homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dranoff, G -- Crawford, A D -- Sadelain, M -- Ream, B -- Rashid, A -- Bronson, R T -- Dickersin, G R -- Bachurski, C J -- Mark, E L -- Whitsett, J A -- HL37569/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Apr 29;264(5159):713-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8171324" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bronchoalveolar Lavage Fluid/chemistry ; Granulocyte-Macrophage Colony-Stimulating Factor/genetics/*physiology ; Hematopoiesis ; Homeostasis ; Humans ; Hyperplasia ; Lung/*pathology ; Mice ; Mice, Inbred C57BL ; Mutation ; Proteolipids/metabolism ; Pulmonary Alveolar Proteinosis/metabolism/*pathology ; Pulmonary Alveoli/*metabolism/pathology ; Pulmonary Surfactant-Associated Proteins ; Pulmonary Surfactants/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
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    Abnormal development of peripheral lymphoid organs in mice deficient in lymphotoxin (1994)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1994-04-29
    Description: Mice rendered deficient in lymphotoxin (LT) by gene targeting in embryonic stem cells have no morphologically detectable lymph nodes or Peyer's patches, although development of the thymus appears normal. Within the white pulp of the spleen, there is failure of normal segregation of B and T cells. Spleen and peripheral blood contain CD4+CD8- and CD4-CD8+ T cells in a normal ratio, and both T cells subsets have an apparently normal lytic function. Lymphocytes positive for immunoglobulin M are present in increased numbers in both the spleen and peripheral blood. These data suggest an essential role for LT in the normal development of peripheral lymphoid organs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉De Togni, P -- Goellner, J -- Ruddle, N H -- Streeter, P R -- Fick, A -- Mariathasan, S -- Smith, S C -- Carlson, R -- Shornick, L P -- Strauss-Schoenberger, J -- CA 16885/CA/NCI NIH HHS/ -- CA 28533/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Apr 29;264(5159):703-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8171322" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/immunology ; Blastocyst ; Cytotoxicity, Immunologic ; Female ; Leukocyte Count ; Lymph Nodes/cytology/*growth & development/immunology ; Lymphoid Tissue/cytology/*growth & development/immunology ; Lymphotoxin-alpha/genetics/*physiology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Peyer's Patches/cytology/growth & development/immunology ; Receptors, Tumor Necrosis Factor/physiology ; Spleen/cytology/immunology ; T-Lymphocyte Subsets/immunology ; T-Lymphocytes/immunology ; Thymus Gland/cytology/immunology ; Tumor Necrosis Factor-alpha/genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    Structural clues to prion replication (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-04-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, F E -- Pan, K M -- Huang, Z -- Baldwin, M -- Fletterick, R J -- Prusiner, S B -- New York, N.Y. -- Science. 1994 Apr 22;264(5158):530-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143-0518.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7909169" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Mice ; Mice, Transgenic ; Models, Biological ; Mutation ; PrPSc Proteins ; Prion Diseases/*metabolism/transmission ; Prions/*biosynthesis/chemistry/genetics/metabolism ; Protein Conformation ; Protein Structure, Secondary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
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    Gene transfer to spark a failing heart (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-04-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seachrist, L -- New York, N.Y. -- Science. 1994 Apr 22;264(5158):507-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8160010" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Gene Transfer Techniques ; *Genetic Therapy ; Heart/*physiology ; Heart Failure/*therapy ; Humans ; Mice ; Mice, Transgenic ; *Myocardial Contraction ; Receptors, Adrenergic, beta/*genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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