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  • Cell Line  (9)
  • American Association for the Advancement of Science (AAAS)  (9)
  • American Geophysical Union (AGU)
  • American Meteorological Society
  • National Academy of Sciences
  • Nature Publishing Group
  • 2015-2019
  • 2000-2004  (9)
Collection
Publisher
  • American Association for the Advancement of Science (AAAS)  (9)
  • American Geophysical Union (AGU)
  • American Meteorological Society
  • National Academy of Sciences
  • Nature Publishing Group
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Year
  • 1
    Publication Date: 2000-12-09
    Description: Genetic engineering of non-beta cells to release insulin upon feeding could be a therapeutic modality for patients with diabetes. A tumor-derived K-cell line was induced to produce human insulin by providing the cells with the human insulin gene linked to the 5'-regulatory region of the gene encoding glucose-dependent insulinotropic polypeptide (GIP). Mice expressing this transgene produced human insulin specifically in gut K cells. This insulin protected the mice from developing diabetes and maintained glucose tolerance after destruction of the native insulin-producing beta cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cheung, A T -- Dayanandan, B -- Lewis, J T -- Korbutt, G S -- Rajotte, R V -- Bryer-Ash, M -- Boylan, M O -- Wolfe, M M -- Kieffer, T J -- New York, N.Y. -- Science. 2000 Dec 8;290(5498):1959-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Alberta, Edmonton, AB T6G 2S2, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11110661" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/metabolism ; Cell Line ; Cloning, Molecular ; Diabetes Mellitus, Experimental/metabolism/*therapy ; Enteroendocrine Cells/*cytology/*metabolism ; Gastric Inhibitory Polypeptide/biosynthesis/genetics ; Gene Expression ; Genetic Engineering ; *Genetic Therapy ; Glucose/administration & dosage/*metabolism ; Glucose Tolerance Test ; Humans ; Insulin/biosynthesis/genetics/*metabolism ; Mice ; Mice, Transgenic ; Proinsulin/genetics ; Promoter Regions, Genetic ; Protein Precursors/genetics ; Stem Cells/cytology/metabolism ; Streptozocin ; Transfection ; Transgenes ; Tumor Cells, Cultured
    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
    Publication Date: 2002-05-23
    Description: Mechanical and thermal cues stimulate a specialized group of sensory neurons that terminate in the skin. Three members of the transient receptor potential (TRP) family of channels are expressed in subsets of these neurons and are activated at distinct physiological temperatures. Here, we describe the cloning and characterization of a novel thermosensitive TRP channel. TRPV3 has a unique threshold: It is activated at innocuous (warm) temperatures and shows an increased response at noxious temperatures. TRPV3 is specifically expressed in keratinocytes; hence, skin cells are capable of detecting heat via molecules similar to those in heat-sensing neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peier, Andrea M -- Reeve, Alison J -- Andersson, David A -- Moqrich, Aziz -- Earley, Taryn J -- Hergarden, Anne C -- Story, Gina M -- Colley, Sian -- Hogenesch, John B -- McIntyre, Peter -- Bevan, Stuart -- Patapoutian, Ardem -- New York, N.Y. -- Science. 2002 Jun 14;296(5575):2046-9. Epub 2002 May 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomics Institute of the Novartis Research Foundation, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016205" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Newborn ; Blotting, Northern ; CHO Cells ; Capsaicin/*analogs & derivatives/pharmacology ; *Cation Transport Proteins ; Cell Line ; Cells, Cultured ; Cloning, Molecular ; Cricetinae ; Epidermis/cytology/innervation/metabolism ; Ganglia, Spinal/metabolism ; *Hot Temperature ; Humans ; In Situ Hybridization ; Ion Channels/chemistry/genetics/*metabolism ; Keratinocytes/*metabolism ; Membrane Potentials ; Mice ; Molecular Sequence Data ; Nerve Endings/physiology ; Neurons/physiology ; Patch-Clamp Techniques ; RNA, Messenger/genetics/metabolism ; Ruthenium Red/pharmacology ; Signal Transduction ; Spinal Cord/metabolism ; TRPV Cation Channels ; Temperature
    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
    Publication Date: 2001-03-07
    Description: The ability of intestinal mucosa to absorb dietary ferric iron is attributed to the presence of a brush-border membrane reductase activity that displays adaptive responses to iron status. We have isolated a complementary DNA, Dcytb (for duodenal cytochrome b), which encoded a putative plasma membrane di-heme protein in mouse duodenal mucosa. Dcytb shared between 45 and 50% similarity to the cytochrome b561 family of plasma membrane reductases, was highly expressed in the brush-border membrane of duodenal enterocytes, and induced ferric reductase activity when expressed in Xenopus oocytes and cultured cells. Duodenal expression levels of Dcytb messenger RNA and protein were regulated by changes in physiological modulators of iron absorption. Thus, Dcytb provides an important element in the iron absorption pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McKie, A T -- Barrow, D -- Latunde-Dada, G O -- Rolfs, A -- Sager, G -- Mudaly, E -- Mudaly, M -- Richardson, C -- Barlow, D -- Bomford, A -- Peters, T J -- Raja, K B -- Shirali, S -- Hediger, M A -- Farzaneh, F -- Simpson, R J -- New York, N.Y. -- Science. 2001 Mar 2;291(5509):1755-9. Epub 2001 Feb 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Medicine, Guy's, King's and St. Thomas' School of Medicine, King's College London, Rayne Institute, Denmark Hill Campus, 123 Coldharbour Lane, London SE5 9NU, UK. andrew.t.mckie@kcl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11230685" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Anemia/enzymology ; Animals ; Anoxia ; Cell Line ; Cloning, Molecular ; Cytochrome b Group/chemistry/genetics/*metabolism ; DNA, Complementary ; Duodenum/enzymology/*metabolism ; Enterocytes/enzymology/metabolism ; Enzyme Induction ; Ferric Compounds/*metabolism ; *Intestinal Absorption ; Intestinal Mucosa/enzymology/*metabolism ; Iron, Dietary/administration & dosage/*metabolism ; Male ; Mice ; Microvilli/enzymology/metabolism ; Molecular Sequence Data ; Nitroblue Tetrazolium/metabolism ; Oocytes ; Oxidation-Reduction ; Oxidoreductases/chemistry/genetics/*metabolism ; RNA, Messenger/genetics/metabolism ; Tetrazolium Salts/metabolism ; Thiazoles/metabolism ; *Transfection ; Up-Regulation ; Xenopus
    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
    Publication Date: 2002-04-20
    Description: Recombinant proteins containing tetracysteine tags can be successively labeled in living cells with different colors of biarsenical fluorophores so that older and younger protein molecules can be sharply distinguished by both fluorescence and electron microscopy. Here we used this approach to show that newly synthesized connexin43 was transported predominantly in 100- to 150-nanometer vesicles to the plasma membrane and incorporated at the periphery of existing gap junctions, whereas older connexins were removed from the center of the plaques into pleiomorphic vesicles of widely varying sizes. Selective imaging by correlated optical and electron microscopy of protein molecules of known ages will clarify fundamental processes of protein trafficking in situ.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gaietta, Guido -- Deerinck, Thomas J -- Adams, Stephen R -- Bouwer, James -- Tour, Oded -- Laird, Dale W -- Sosinsky, Gina E -- Tsien, Roger Y -- Ellisman, Mark H -- DC03192/DC/NIDCD NIH HHS/ -- NS14718/NS/NINDS NIH HHS/ -- NS27177/NS/NINDS NIH HHS/ -- P01 DK54441/DK/NIDDK NIH HHS/ -- R01 GM065937/GM/NIGMS NIH HHS/ -- RR04050/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2002 Apr 19;296(5567):503-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Microscopy and Imaging Research, Department of Neurosciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11964472" target="_blank"〉PubMed〈/a〉
    Keywords: 3,3'-Diaminobenzidine/chemistry ; Amino Acid Motifs ; Animals ; Arsenicals/metabolism ; Cell Line ; Cell Membrane/metabolism/ultrastructure ; Connexin 43/biosynthesis/*metabolism ; Cysteine/chemistry ; Endocytosis ; Exocytosis ; Fluoresceins/metabolism ; Fluorescence ; Fluorescent Dyes/metabolism ; Gap Junctions/*metabolism/ultrastructure ; HeLa Cells ; Humans ; Microscopy, Confocal ; Microscopy, Electron ; Microscopy, Immunoelectron ; Organometallic Compounds/metabolism ; Oxazines/metabolism ; Patch-Clamp Techniques ; Protein Transport ; Recombinant Proteins/metabolism ; Transport Vesicles/*metabolism/ultrastructure
    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
    Publication Date: 2002-02-09
    Description: Lamellipodia are thin, veil-like extensions at the edge of cells that contain a dynamic array of actin filaments. We describe an approach for analyzing spatial regulation of actin polymerization and depolymerization in vivo in which we tracked single molecules of actin fused to the green fluorescent protein. Polymerization and the lifetime of actin filaments in lamellipodia were measured with high spatial precision. Basal polymerization and depolymerization occurred throughout lamellipodia with largely constant kinetics, and polymerization was promoted within one micron of the lamellipodium tip. Most of the actin filaments in the lamellipodium were generated by polymerization away from the tip.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Watanabe, Naoki -- Mitchison, Timothy J -- GM48027/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Feb 8;295(5557):1083-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA. naoki_watanabe@hms.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11834838" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/drug effects/*metabolism/ultrastructure ; Actin-Related Protein 2 ; Actin-Related Protein 3 ; Actins/*metabolism ; Animals ; Biopolymers ; Cell Line ; *Cytoskeletal Proteins ; *Depsipeptides ; Fibroblasts ; Fluorescence ; Green Fluorescent Proteins ; Half-Life ; Luminescent Proteins ; Models, Biological ; Peptides, Cyclic/pharmacology ; Pseudopodia/*metabolism/ultrastructure ; Recombinant Fusion Proteins/metabolism ; Xenopus
    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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  • 6
    Publication Date: 2000-11-18
    Description: Histoplasma capsulatum is an effective intracellular parasite of macrophages and causes the most prevalent fungal respiratory disease in the United States. A "dimorphic" fungus, H. capsulatum exists as a saprophytic mold in soil and converts to the parasitic yeast form after inhalation. Only the yeasts secrete a calcium-binding protein (CBP) and can grow in calcium-limiting conditions. To probe the relation between calcium limitation and intracellular parasitism, we designed a strategy to disrupt CBP1 in H. capsulatum using a telomeric linear plasmid and a two-step genetic selection. The resultingcbp1 yeasts no longer grew when deprived of calcium, and they were also unable to destroy macrophages in vitro or proliferate in a mouse model of pulmonary infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sebghati, T S -- Engle, J T -- Goldman, W E -- A107172/PHS HHS/ -- AI25584/AI/NIAID NIH HHS/ -- HL07317/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2000 Nov 17;290(5495):1368-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Microbiology, Campus Box 8230, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11082066" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Calcium/*metabolism ; Calcium-Binding Proteins/*genetics/*metabolism ; Cell Line ; Cell Survival ; Gene Targeting ; Genes, Fungal ; Genetic Complementation Test ; Histoplasma/genetics/growth & development/metabolism/*pathogenicity ; Histoplasmosis/*microbiology ; Lung Diseases, Fungal/microbiology ; Macrophages/*microbiology ; Mice ; Mutagenesis ; Phenotype ; Plasmids ; Recombination, Genetic ; Transformation, Genetic ; Virulence
    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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  • 7
    Publication Date: 2001-02-27
    Description: The mammalian innate immune system retains from Drosophila a family of homologous Toll-like receptors (TLRs) that mediate responses to microbial ligands. Here, we show that TLR2 activation leads to killing of intracellular Mycobacterium tuberculosis in both mouse and human macrophages, through distinct mechanisms. In mouse macrophages, bacterial lipoprotein activation of TLR2 leads to a nitric oxide-dependent killing of intracellular tubercle bacilli, but in human monocytes and alveolar macrophages, this pathway was nitric oxide-independent. Thus, mammalian TLRs respond (as Drosophila Toll receptors do) to microbial ligands and also have the ability to activate antimicrobial effector pathways at the site of infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thoma-Uszynski, S -- Stenger, S -- Takeuchi, O -- Ochoa, M T -- Engele, M -- Sieling, P A -- Barnes, P F -- Rollinghoff, M -- Bolcskei, P L -- Wagner, M -- Akira, S -- Norgard, M V -- Belisle, J T -- Godowski, P J -- Bloom, B R -- Modlin, R L -- AI 07118/AI/NIAID NIH HHS/ -- AI 22553/AI/NIAID NIH HHS/ -- AI 47868/AI/NIAID NIH HHS/ -- AR 40312/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 2001 Feb 23;291(5508):1544-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Dermatology, Department of Microbiology and Immunology and Molecular Biology Institute, UCLA School of Medicine, Los Angeles, CA 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11222859" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Proteins/immunology ; Cell Line ; Cells, Cultured ; *Drosophila Proteins ; Humans ; Interferon-gamma/immunology/pharmacology ; Ligands ; Lipoproteins/*immunology ; Macrophage Activation ; Macrophages/immunology/metabolism/*microbiology ; Macrophages, Alveolar/immunology/metabolism/microbiology ; Macrophages, Peritoneal/immunology/metabolism/microbiology ; Membrane Glycoproteins/*metabolism ; Mice ; Monocytes/immunology/metabolism/*microbiology ; Mycobacterium tuberculosis/growth & development/*immunology ; Nitric Oxide/*metabolism ; Nitric Oxide Synthase/antagonists & inhibitors/metabolism ; Nitric Oxide Synthase Type II ; Receptors, Cell Surface/*metabolism ; Signal Transduction ; Toll-Like Receptor 2 ; Toll-Like Receptors ; Tumor Necrosis Factor-alpha/immunology/pharmacology
    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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  • 8
    Publication Date: 2002-09-14
    Description: Mechanisms regulating self-renewal and cell fate decisions in mammalian stem cells are poorly understood. We determined global gene expression profiles for mouse and human hematopoietic stem cells and other stages of the hematopoietic hierarchy. Murine and human hematopoietic stem cells share a number of expressed gene products, which define key conserved regulatory pathways in this developmental system. Moreover, in the mouse, a portion of the genetic program of hematopoietic stem cells is shared with embryonic and neural stem cells. This overlapping set of gene products represents a molecular signature of stem cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ivanova, Natalia B -- Dimos, John T -- Schaniel, Christoph -- Hackney, Jason A -- Moore, Kateri A -- Lemischka, Ihor R -- DK42989/DK/NIDDK NIH HHS/ -- DK54493/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2002 Oct 18;298(5593):601-4. Epub 2002 Sep 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12228721" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Cell Communication ; Cell Cycle ; Cell Differentiation ; Cell Line ; Cell Lineage ; Cell Separation ; Cells, Cultured ; Computational Biology ; Embryo, Mammalian/cytology ; Expressed Sequence Tags ; *Gene Expression ; *Gene Expression Profiling ; Genes, Homeobox ; Hematopoiesis ; Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/*physiology ; Humans ; Mice ; Neurons/cytology ; Oligonucleotide Array Sequence Analysis ; Signal Transduction ; Stem Cells/*physiology ; Totipotent Stem Cells/*physiology ; Transcription, Genetic
    Print ISSN: 0036-8075
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  • 9
    Publication Date: 2004-08-07
    Description: Vesicle fusion involves vesicle tethering, docking, and membrane merger. We show that mitofusin, an integral mitochondrial membrane protein, is required on adjacent mitochondria to mediate fusion, which indicates that mitofusin complexes act in trans (that is, between adjacent mitochondria). A heptad repeat region (HR2) mediates mitofusin oligomerization by assembling a dimeric, antiparallel coiled coil. The transmembrane segments are located at opposite ends of the 95 angstrom coiled coil and provide a mechanism for organelle tethering. Consistent with this proposal, truncated mitofusin, in an HR2-dependent manner, causes mitochondria to become apposed with a uniform gap. Our results suggest that HR2 functions as a mitochondrial tether before fusion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshiba, Takumi -- Detmer, Scott A -- Kaiser, Jens T -- Chen, Hsiuchen -- McCaffery, J Michael -- Chan, David C -- R01 GM62967/GM/NIGMS NIH HHS/ -- S10 RR019409-01/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2004 Aug 6;305(5685):858-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, 1200 East California Boulevard, MC114-96, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15297672" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Cell Line ; Crystallography, X-Ray ; Dimerization ; GTP Phosphohydrolases/*chemistry/*metabolism ; Humans ; Hybrid Cells ; Hydrophobic and Hydrophilic Interactions ; Intracellular Membranes/physiology/ultrastructure ; Membrane Fusion ; Mice ; Mitochondria/*metabolism/ultrastructure ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Structure, Secondary ; Protein Structure, Tertiary
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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