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  • Articles  (359)
  • Cells, Cultured  (359)
  • 2005-2009  (154)
  • 1980-1984  (205)
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  • 1
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    Small-molecule activators of a proenzyme (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-11-07
    Description: Virtually all of the 560 human proteases are stored as inactive proenyzmes and are strictly regulated. We report the identification and characterization of the first small molecules that directly activate proenzymes, the apoptotic procaspases-3 and -6. It is surprising that these compounds induce autoproteolytic activation by stabilizing a conformation that is both more active and more susceptible to intermolecular proteolysis. These procaspase activators bypass the normal upstream proapoptotic signaling cascades and induce rapid apoptosis in a variety of cell lines. Systematic biochemical and biophysical analyses identified a cluster of mutations in procaspase-3 that resist small-molecule activation both in vitro and in cells. Compounds that induce gain of function are rare, and the activators reported here will enable direct control of the executioner caspases in apoptosis and in cellular differentiation. More generally, these studies presage the discovery of other proenzyme activators to explore fundamental processes of proenzyme activation and their fate-determining roles in biology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2886848/" 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/PMC2886848/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolan, Dennis W -- Zorn, Julie A -- Gray, Daniel C -- Wells, James A -- F32 CA119641/CA/NCI NIH HHS/ -- F32 CA119641-03/CA/NCI NIH HHS/ -- R01 CA136779/CA/NCI NIH HHS/ -- R21 N5057022/PHS HHS/ -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):853-8. doi: 10.1126/science.1177585.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmaceutical Chemistry, University of California, San Francisco, Byers Hall, 1700 4th Street, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892984" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Benzopyrans/chemistry/*metabolism/pharmacology ; Biocatalysis ; Caspase 3/chemistry/genetics/*metabolism ; Caspase 6/chemistry/genetics/*metabolism ; Caspase Inhibitors ; Catalytic Domain ; Cell Line, Transformed ; Cell Line, Tumor ; Cells, Cultured ; Enzyme Activation ; Enzyme Activators/chemistry/*metabolism/pharmacology ; Enzyme Inhibitors/metabolism/pharmacology ; Enzyme Precursors/antagonists & inhibitors/chemistry/genetics/*metabolism ; Granzymes/metabolism ; Humans ; Imidazoles/chemistry/*metabolism/pharmacology ; Kinetics ; Mice ; Molecular Structure ; Mutagenesis ; Pyridines/chemistry/*metabolism/pharmacology ; Signal Transduction ; Small Molecule Libraries/chemistry/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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  • 2
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    MafB/c-Maf deficiency enables self-renewal of differentiated functional macrophages (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-11-07
    Description: In metazoan organisms, terminal differentiation is generally tightly linked to cell cycle exit, whereas the undifferentiated state of pluripotent stem cells is associated with unlimited self-renewal. Here, we report that combined deficiency for the transcription factors MafB and c-Maf enables extended expansion of mature monocytes and macrophages in culture without loss of differentiated phenotype and function. Upon transplantation, the expanded cells are nontumorigenic and contribute to functional macrophage populations in vivo. Small hairpin RNA inactivation shows that continuous proliferation of MafB/c-Maf deficient macrophages requires concomitant up-regulation of two pluripotent stem cell-inducing factors, KLF4 and c-Myc. Our results indicate that MafB/c-MafB deficiency renders self-renewal compatible with terminal differentiation. It thus appears possible to amplify functional differentiated cells without malignant transformation or stem cell intermediates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aziz, Athar -- Soucie, Erinn -- Sarrazin, Sandrine -- Sieweke, Michael H -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):867-71. doi: 10.1126/science.1176056.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre d'Immunologie de Marseille-Luminy (CIML), Universite Aix-Marseille, Campus de Luminy, Case 906, 13288 Marseille Cedex 09, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892988" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; *Cell Proliferation ; Cell Transformation, Neoplastic ; Cells, Cultured ; Kruppel-Like Transcription Factors/genetics/physiology ; Macrophage Colony-Stimulating Factor/metabolism/pharmacology ; Macrophages/cytology/*physiology/transplantation ; MafB Transcription Factor/*deficiency/genetics/physiology ; Mice ; Mice, Knockout ; Monocytes/cytology/physiology ; Myeloid Progenitor Cells/cytology/physiology ; Phagocytosis ; Proto-Oncogene Proteins c-maf/*deficiency/genetics/physiology ; Proto-Oncogene Proteins c-myc/genetics/physiology ; Up-Regulation
    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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  • 3
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    Generation of functional ventricular heart muscle from mouse ventricular progenitor cells (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-10-17
    Description: The mammalian heart is formed from distinct sets of first and second heart field (FHF and SHF, respectively) progenitors. Although multipotent progenitors have previously been shown to give rise to cardiomyocytes, smooth muscle, and endothelial cells, the mechanism governing the generation of large numbers of differentiated progeny remains poorly understood. We have employed a two-colored fluorescent reporter system to isolate FHF and SHF progenitors from developing mouse embryos and embryonic stem cells. Genome-wide profiling of coding and noncoding transcripts revealed distinct molecular signatures of these progenitor populations. We further identify a committed ventricular progenitor cell in the Islet 1 lineage that is capable of limited in vitro expansion, differentiation, and assembly into functional ventricular muscle tissue, representing a combination of tissue engineering and stem cell biology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2895998/" 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/PMC2895998/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Domian, Ibrahim J -- Chiravuri, Murali -- van der Meer, Peter -- Feinberg, Adam W -- Shi, Xi -- Shao, Ying -- Wu, Sean M -- Parker, Kevin Kit -- Chien, Kenneth R -- K08 HL081086/HL/NHLBI NIH HHS/ -- K08 HL081086-01/HL/NHLBI NIH HHS/ -- K08 HL091209/HL/NHLBI NIH HHS/ -- R01 HL079126/HL/NHLBI NIH HHS/ -- R01 HL079126-01A1/HL/NHLBI NIH HHS/ -- T32 HL002807/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 16;326(5951):426-9. doi: 10.1126/science.1177350.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cardiovascular Research Center, Massachusetts General Hospital, Charles River Plaza, CPZN 3200, 185 Cambridge Street, Boston, MA 02114-2790, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833966" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Cell Cycle ; Cell Differentiation ; Cell Line ; Cell Lineage ; Cells, Cultured ; Embryonic Stem Cells/*cytology/physiology ; Gene Expression ; Heart/embryology ; Heart Ventricles/*cytology/embryology ; Mice ; Mice, Transgenic ; Muscle Development ; Myocardial Contraction ; Myocytes, Cardiac/*cytology/physiology ; Oligonucleotide Array Sequence Analysis ; *Tissue Engineering ; *Ventricular Function
    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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  • 4
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    PTPsigma is a receptor for chondroitin sulfate proteoglycan, an inhibitor of neural regeneration (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-10-17
    Description: Chondroitin sulfate proteoglycans (CSPGs) present a barrier to axon regeneration. However, no specific receptor for the inhibitory effect of CSPGs has been identified. We showed that a transmembrane protein tyrosine phosphatase, PTPsigma, binds with high affinity to neural CSPGs. Binding involves the chondroitin sulfate chains and a specific site on the first immunoglobulin-like domain of PTPsigma. In culture, PTPsigma(-/-) neurons show reduced inhibition by CSPG. A PTPsigma fusion protein probe can detect cognate ligands that are up-regulated specifically at neural lesion sites. After spinal cord injury, PTPsigma gene disruption enhanced the ability of axons to penetrate regions containing CSPG. These results indicate that PTPsigma can act as a receptor for CSPGs and may provide new therapeutic approaches to neural regeneration.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2811318/" 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/PMC2811318/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, Yingjie -- Tenney, Alan P -- Busch, Sarah A -- Horn, Kevin P -- Cuascut, Fernando X -- Liu, Kai -- He, Zhigang -- Silver, Jerry -- Flanagan, John G -- R01 EY011559/EY/NEI NIH HHS/ -- R01 NS025713/NS/NINDS NIH HHS/ -- R37 HD029417/HD/NICHD NIH HHS/ -- R37 NS025713/NS/NINDS NIH HHS/ -- R37 NS025713-22/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 23;326(5952):592-6. doi: 10.1126/science.1178310. Epub 2009 Oct 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Program in Neuroscience, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833921" target="_blank"〉PubMed〈/a〉
    Keywords: Aggrecans/metabolism ; Animals ; Astrocytes/metabolism ; Axons/physiology ; Binding Sites ; Cells, Cultured ; Chondroitin Sulfate Proteoglycans/chemistry/*metabolism ; Chondroitin Sulfates/metabolism ; Female ; Ganglia, Spinal/cytology/metabolism ; Ligands ; Mice ; *Nerve Regeneration ; Nerve Tissue Proteins/chemistry/*metabolism ; Neurites/physiology ; Neurons/*physiology ; Protein Binding ; Protein Interaction Domains and Motifs ; Proteoglycans/chemistry/*metabolism ; Receptor-Like Protein Tyrosine Phosphatases, Class ; 2/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Spinal Cord/metabolism/pathology ; Spinal Cord Injuries/*metabolism/pathology/physiopathology
    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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    AMPK regulates the circadian clock by cryptochrome phosphorylation and degradation (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-10-17
    Description: Circadian clocks coordinate behavioral and physiological processes with daily light-dark cycles by driving rhythmic transcription of thousands of genes. Whereas the master clock in the brain is set by light, pacemakers in peripheral organs, such as the liver, are reset by food availability, although the setting, or "entrainment," mechanisms remain mysterious. Studying mouse fibroblasts, we demonstrated that the nutrient-responsive adenosine monophosphate-activated protein kinase (AMPK) phosphorylates and destabilizes the clock component cryptochrome 1 (CRY1). In mouse livers, AMPK activity and nuclear localization were rhythmic and inversely correlated with CRY1 nuclear protein abundance. Stimulation of AMPK destabilized cryptochromes and altered circadian rhythms, and mice in which the AMPK pathway was genetically disrupted showed alterations in peripheral clocks. Thus, phosphorylation by AMPK enables cryptochrome to transduce nutrient signals to circadian clocks in mammalian peripheral organs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819106/" 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/PMC2819106/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamia, Katja A -- Sachdeva, Uma M -- DiTacchio, Luciano -- Williams, Elliot C -- Alvarez, Jacqueline G -- Egan, Daniel F -- Vasquez, Debbie S -- Juguilon, Henry -- Panda, Satchidananda -- Shaw, Reuben J -- Thompson, Craig B -- Evans, Ronald M -- CA104838/CA/NCI NIH HHS/ -- DK057978/DK/NIDDK NIH HHS/ -- DK062434/DK/NIDDK NIH HHS/ -- DK080425/DK/NIDDK NIH HHS/ -- EY016807/EY/NEI NIH HHS/ -- P01 CA104838/CA/NCI NIH HHS/ -- P01 CA104838-05S1/CA/NCI NIH HHS/ -- P30 CA014195/CA/NCI NIH HHS/ -- R01 DK080425/DK/NIDDK NIH HHS/ -- R01 DK080425-03/DK/NIDDK NIH HHS/ -- R01 EY016807/EY/NEI NIH HHS/ -- R01 EY016807-03/EY/NEI NIH HHS/ -- R37 DK057978/DK/NIDDK NIH HHS/ -- R37 DK057978-31/DK/NIDDK NIH HHS/ -- T32 HL007439/HL/NHLBI NIH HHS/ -- T32 HL007439-27/HL/NHLBI NIH HHS/ -- T32-HL07439-27/HL/NHLBI NIH HHS/ -- U19 DK062434/DK/NIDDK NIH HHS/ -- U19 DK062434-08S19002/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Oct 16;326(5951):437-40. doi: 10.1126/science.1172156.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gene Expression Laboratory, the Salk Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833968" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/*metabolism ; ARNTL Transcription Factors ; Amino Acid Substitution ; Aminoimidazole Carboxamide/analogs & derivatives/pharmacology ; Animals ; Basic Helix-Loop-Helix Transcription Factors/genetics ; Cell Line ; Cell Nucleus/metabolism ; Cells, Cultured ; Circadian Rhythm/*physiology ; Cryptochromes ; Culture Media ; Flavoproteins/genetics/*metabolism ; Food ; Glucose/metabolism/pharmacology ; Humans ; Liver/*metabolism ; Mice ; Mutagenesis, Site-Directed ; Mutant Proteins/metabolism ; Phosphorylation ; Promoter Regions, Genetic ; Protein Stability ; Recombinant Fusion Proteins/metabolism ; Ribonucleotides/pharmacology ; Signal Transduction
    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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    Physiology. Feeding the clock (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suter, David M -- Schibler, Ueli -- New York, N.Y. -- Science. 2009 Oct 16;326(5951):378-9. doi: 10.1126/science.1181278.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Sciences III, University of Geneva, and National Centre of Competence in Research Frontiers in Genetics, 30 Quai Ernest Ansermet, 1211 Geneva, Switzerland. david.suter@unige.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833950" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/*metabolism ; Animals ; Cells, Cultured ; *Circadian Rhythm ; Cryptochromes ; Cues ; Flavoproteins/chemistry/genetics/*metabolism ; Food ; Gene Expression Regulation ; Glucose/metabolism ; Liver/metabolism ; Mice ; Mutagenesis, Site-Directed ; Phosphorylation
    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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  • 7
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    KLF family members regulate intrinsic axon regeneration ability (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-10-10
    Description: Neurons in the central nervous system (CNS) lose their ability to regenerate early in development, but the underlying mechanisms are unknown. By screening genes developmentally regulated in retinal ganglion cells (RGCs), we identified Kruppel-like factor-4 (KLF4) as a transcriptional repressor of axon growth in RGCs and other CNS neurons. RGCs lacking KLF4 showed increased axon growth both in vitro and after optic nerve injury in vivo. Related KLF family members suppressed or enhanced axon growth to differing extents, and several growth-suppressive KLFs were up-regulated postnatally, whereas growth-enhancing KLFs were down-regulated. Thus, coordinated activities of different KLFs regulate the regenerative capacity of CNS neurons.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2882032/" 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/PMC2882032/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moore, Darcie L -- Blackmore, Murray G -- Hu, Ying -- Kaestner, Klaus H -- Bixby, John L -- Lemmon, Vance P -- Goldberg, Jeffrey L -- P30 EY014801/EY/NEI NIH HHS/ -- R01 NS059866/NS/NINDS NIH HHS/ -- R01 NS059866-01A2/NS/NINDS NIH HHS/ -- R01 NS061348/NS/NINDS NIH HHS/ -- R01 NS061348-01A2/NS/NINDS NIH HHS/ -- R01 NS061348-02/NS/NINDS NIH HHS/ -- R01 NS061348-03/NS/NINDS NIH HHS/ -- R01 NS061348-04/NS/NINDS NIH HHS/ -- R03 EY016790/EY/NEI NIH HHS/ -- R03 EY016790-01/EY/NEI NIH HHS/ -- R03 EY016790-02/EY/NEI NIH HHS/ -- R03 EY016790-03/EY/NEI NIH HHS/ -- T32 NS007459/NS/NINDS NIH HHS/ -- T32 NS07492/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 9;326(5950):298-301. doi: 10.1126/science.1175737.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19815778" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology/ultrastructure ; Cell Count ; Cell Survival ; Cells, Cultured ; Down-Regulation ; Gene Knockout Techniques ; Growth Cones/physiology ; Hippocampus/cytology/physiology ; Kruppel-Like Transcription Factors/genetics/*physiology ; Mice ; Nerve Crush ; Nerve Regeneration ; Neurites/physiology ; Neurons/*physiology ; Optic Nerve Injuries/physiopathology ; Rats ; Retinal Ganglion Cells/cytology/*physiology ; Transcription, Genetic ; Transfection ; Up-Regulation
    Print ISSN: 0036-8075
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  • 8
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    HIV/AIDS research. Potent HIV antibodies spark vaccine hopes (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2009 Sep 4;325(5945):1195. doi: 10.1126/science.325_1195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19729632" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; Antibodies, Monoclonal/immunology ; Antibody Specificity ; Cells, Cultured ; HIV/*immunology ; HIV Antibodies/*immunology ; HIV Antigens/immunology ; HIV Infections/*immunology ; Human Immunodeficiency Virus Proteins/chemistry/*immunology ; Humans ; Neutralization Tests ; Protein Multimerization
    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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    Cell biology. Using taste to clear the air(ways) (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-08-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kinnamon, Sue C -- Reynolds, Susan D -- New York, N.Y. -- Science. 2009 Aug 28;325(5944):1081-2. doi: 10.1126/science.1179180.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Otolaryngology and Rocky Mountain Taste and Smell Center, University of Colorado Denver, 12700 East 19th Avenue, Aurora, CO 80045, USA. sue.kinnamon@ucdenver.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19713515" target="_blank"〉PubMed〈/a〉
    Keywords: Calcium/metabolism ; Cells, Cultured ; Cilia/*physiology ; Epithelial Cells/*metabolism ; Humans ; Movement ; Mucus/secretion ; Noxae ; Receptors, G-Protein-Coupled/*metabolism ; Respiratory Mucosa/cytology/*metabolism ; *Signal Transduction ; *Taste ; Transducin/metabolism ; Type C Phospholipases/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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  • 10
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    Motile cilia of human airway epithelia are chemosensory (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-07-25
    Description: Cilia are microscopic projections that extend from eukaryotic cells. There are two general types of cilia; primary cilia serve as sensory organelles, whereas motile cilia exert mechanical force. The motile cilia emerging from human airway epithelial cells propel harmful inhaled material out of the lung. We found that these cells express sensory bitter taste receptors, which localized on motile cilia. Bitter compounds increased the intracellular calcium ion concentration and stimulated ciliary beat frequency. Thus, airway epithelia contain a cell-autonomous system in which motile cilia both sense noxious substances entering airways and initiate a defensive mechanical mechanism to eliminate the offending compound. Hence, like primary cilia, classical motile cilia also contain sensors to detect the external environment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894709/" 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/PMC2894709/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shah, Alok S -- Ben-Shahar, Yehuda -- Moninger, Thomas O -- Kline, Joel N -- Welsh, Michael J -- DK54759/DK/NIDDK NIH HHS/ -- HL51670/HL/NHLBI NIH HHS/ -- P01 HL051670/HL/NHLBI NIH HHS/ -- P01 HL051670-15/HL/NHLBI NIH HHS/ -- P30 DK054759/DK/NIDDK NIH HHS/ -- P30 DK054759-109004/DK/NIDDK NIH HHS/ -- P30 DK054759-13/DK/NIDDK NIH HHS/ -- R01 DK051315/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Aug 28;325(5944):1131-4. doi: 10.1126/science.1173869. Epub 2009 Jul 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19628819" target="_blank"〉PubMed〈/a〉
    Keywords: Bronchi/cytology ; Calcium/metabolism ; Cells, Cultured ; Cilia/metabolism/*physiology ; Epithelial Cells/*metabolism ; Humans ; Monoterpenes/metabolism/pharmacology ; Movement ; Noxae ; Phospholipase C beta/metabolism ; Quaternary Ammonium Compounds/metabolism/pharmacology ; Receptors, G-Protein-Coupled/*metabolism ; Respiratory Mucosa/cytology/*metabolism ; *Signal Transduction ; *Taste ; Trachea/cytology ; Transducin/metabolism
    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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