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  • Mice  (5)
  • Superfluidity and superconductivity
  • American Association for the Advancement of Science (AAAS)  (5)
  • 2010-2014  (5)
  • 1980-1984
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  • 1
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    A gustotopic map of taste qualities in the mammalian brain (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-03
    Description: The taste system is one of our fundamental senses, responsible for detecting and responding to sweet, bitter, umami, salty, and sour stimuli. In the tongue, the five basic tastes are mediated by separate classes of taste receptor cells each finely tuned to a single taste quality. We explored the logic of taste coding in the brain by examining how sweet, bitter, umami, and salty qualities are represented in the primary taste cortex of mice. We used in vivo two-photon calcium imaging to demonstrate topographic segregation in the functional architecture of the gustatory cortex. Each taste quality is represented in its own separate cortical field, revealing the existence of a gustotopic map in the brain. These results expose the basic logic for the central representation of taste.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3523322/" 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/PMC3523322/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Xiaoke -- Gabitto, Mariano -- Peng, Yueqing -- Ryba, Nicholas J P -- Zuker, Charles S -- Z01 DE000561-15/Intramural NIH HHS/ -- Z01 DE000561-16/Intramural NIH HHS/ -- ZIA DE000561-17/Intramural NIH HHS/ -- ZIA DE000561-18/Intramural NIH HHS/ -- ZIA DE000561-19/Intramural NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1262-6. doi: 10.1126/science.1204076.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Biochemistry and Molecular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21885776" target="_blank"〉PubMed〈/a〉
    Keywords: Afferent Pathways ; Animals ; *Brain Mapping ; Cerebral Cortex/cytology/*physiology ; Cycloheximide ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Molecular Imaging ; Neurons/*physiology ; Sodium Chloride ; Sodium Glutamate ; Sweetening Agents ; Taste/*physiology ; Taste Buds/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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  • 2
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    Cyclic GMP-AMP synthase is a cytosolic DNA sensor that activates the type I interferon pathway (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-22
    Description: The presence of DNA in the cytoplasm of mammalian cells is a danger signal that triggers host immune responses such as the production of type I interferons. Cytosolic DNA induces interferons through the production of cyclic guanosine monophosphate-adenosine monophosphate (cyclic GMP-AMP, or cGAMP), which binds to and activates the adaptor protein STING. Through biochemical fractionation and quantitative mass spectrometry, we identified a cGAMP synthase (cGAS), which belongs to the nucleotidyltransferase family. Overexpression of cGAS activated the transcription factor IRF3 and induced interferon-beta in a STING-dependent manner. Knockdown of cGAS inhibited IRF3 activation and interferon-beta induction by DNA transfection or DNA virus infection. cGAS bound to DNA in the cytoplasm and catalyzed cGAMP synthesis. These results indicate that cGAS is a cytosolic DNA sensor that induces interferons by producing the second messenger cGAMP.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3863629/" 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/PMC3863629/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Lijun -- Wu, Jiaxi -- Du, Fenghe -- Chen, Xiang -- Chen, Zhijian J -- AI-093967/AI/NIAID NIH HHS/ -- R01 AI093967/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Feb 15;339(6121):786-91. doi: 10.1126/science.1232458. Epub 2012 Dec 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258413" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Animals ; Cell Line, Tumor ; Cyclic AMP/biosynthesis ; Cyclic GMP/biosynthesis ; Cytidine Triphosphate/metabolism ; Cytosol/enzymology/*immunology ; DNA/*immunology/metabolism ; Gene Knockdown Techniques ; HEK293 Cells ; Humans ; Interferon Type I/*biosynthesis ; Interferon-beta/*biosynthesis ; Metabolic Networks and Pathways ; Mice ; Molecular Sequence Data ; Nucleotidyltransferases/genetics/isolation & purification/*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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  • 3
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    Reprogramming of T cells to natural killer-like cells upon Bcl11b deletion (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-12
    Description: T cells develop in the thymus and are critical for adaptive immunity. Natural killer (NK) lymphocytes constitute an essential component of the innate immune system in tumor surveillance, reproduction, and defense against microbes and viruses. Here, we show that the transcription factor Bcl11b was expressed in all T cell compartments and was indispensable for T lineage development. When Bcl11b was deleted, T cells from all developmental stages acquired NK cell properties and concomitantly lost or decreased T cell-associated gene expression. These induced T-to-natural killer (ITNK) cells, which were morphologically and genetically similar to conventional NK cells, killed tumor cells in vitro, and effectively prevented tumor metastasis in vivo. Therefore, ITNKs may represent a new cell source for cell-based therapies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3628452/" 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/PMC3628452/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Peng -- Burke, Shannon -- Wang, Juexuan -- Chen, Xiongfeng -- Ortiz, Mariaestela -- Lee, Song-Choon -- Lu, Dong -- Campos, Lia -- Goulding, David -- Ng, Bee Ling -- Dougan, Gordon -- Huntly, Brian -- Gottgens, Bertie -- Jenkins, Nancy A -- Copeland, Neal G -- Colucci, Francesco -- Liu, Pentao -- 076962/Wellcome Trust/United Kingdom -- 077186/Wellcome Trust/United Kingdom -- G0501150/Medical Research Council/United Kingdom -- G0800784/Medical Research Council/United Kingdom -- G116/187/Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Jul 2;329(5987):85-9. doi: 10.1126/science.1188063. Epub 2010 Jun 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1HH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20538915" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line, Tumor ; *Cell Lineage ; Cells, Cultured ; Coculture Techniques ; Cytotoxicity, Immunologic ; Gene Deletion ; Gene Expression Profiling ; Gene Expression Regulation, Developmental ; Gene Knock-In Techniques ; Genes, T-Cell Receptor beta ; Killer Cells, Natural/cytology/immunology/*physiology ; *Lymphopoiesis/genetics ; Melanoma, Experimental/immunology/therapy ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Oligonucleotide Array Sequence Analysis ; Precursor Cells, T-Lymphoid/cytology/physiology ; Receptors, Antigen, T-Cell, alpha-beta/metabolism ; Repressor Proteins/*genetics/*metabolism ; Signal Transduction ; Stromal Cells/cytology/physiology ; T-Lymphocytes/cytology/immunology/*physiology/transplantation ; Tamoxifen/analogs & derivatives/pharmacology ; Tumor Suppressor Proteins/*genetics/*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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  • 4
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    Transplanted hypothalamic neurons restore leptin signaling and ameliorate obesity in db/db mice (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-26
    Description: Evolutionarily old and conserved homeostatic systems in the brain, including the hypothalamus, are organized into nuclear structures of heterogeneous and diverse neuron populations. To investigate whether such circuits can be functionally reconstituted by synaptic integration of similarly diverse populations of neurons, we generated physically chimeric hypothalami by microtransplanting small numbers of embryonic enhanced green fluorescent protein-expressing, leptin-responsive hypothalamic cells into hypothalami of postnatal leptin receptor-deficient (db/db) mice that develop morbid obesity. Donor neurons differentiated and integrated as four distinct hypothalamic neuron subtypes, formed functional excitatory and inhibitory synapses, partially restored leptin responsiveness, and ameliorated hyperglycemia and obesity in db/db mice. These experiments serve as a proof of concept that transplanted neurons can functionally reconstitute complex neuronal circuitry in the mammalian brain.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3770458/" 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/PMC3770458/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Czupryn, Artur -- Zhou, Yu-Dong -- Chen, Xi -- McNay, David -- Anderson, Matthew P -- Flier, Jeffrey S -- Macklis, Jeffrey D -- DKR37-28082/PHS HHS/ -- K02 NS054674/NS/NINDS NIH HHS/ -- NS054674/NS/NINDS NIH HHS/ -- NS057444/NS/NINDS NIH HHS/ -- NS070295/NS/NINDS NIH HHS/ -- NS41590/NS/NINDS NIH HHS/ -- NS45523/NS/NINDS NIH HHS/ -- NS49553/NS/NINDS NIH HHS/ -- R01 NS041590/NS/NINDS NIH HHS/ -- R01 NS045523/NS/NINDS NIH HHS/ -- R01 NS049553/NS/NINDS NIH HHS/ -- R01 NS057444/NS/NINDS NIH HHS/ -- R21 NS070295/NS/NINDS NIH HHS/ -- R37 DK028082/DK/NIDDK NIH HHS/ -- R37 NS041590/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 25;334(6059):1133-7. doi: 10.1126/science.1209870.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Stem Cell and Regenerative Biology, and Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22116886" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/analysis ; Body Weight ; Cell Shape ; Electrophysiological Phenomena ; Excitatory Postsynaptic Potentials ; Glucose/administration & dosage ; Hypothalamus/*cytology/metabolism ; Hypothalamus, Middle/*cytology/metabolism/*physiopathology ; Inhibitory Postsynaptic Potentials ; Insulin/administration & dosage/blood ; Leptin/administration & dosage/*metabolism ; Membrane Potentials ; Mice ; Mice, Obese ; Neurogenesis ; Neurons/cytology/*physiology/*transplantation ; Obesity/metabolism/*physiopathology/*therapy ; Receptors, Leptin/*metabolism ; Signal Transduction ; Synaptic Transmission
    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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  • 5
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    Cyclic GMP-AMP is an endogenous second messenger in innate immune signaling by cytosolic DNA (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-22
    Description: Cytosolic DNA induces type I interferons and other cytokines that are important for antimicrobial defense but can also result in autoimmunity. This DNA signaling pathway requires the adaptor protein STING and the transcription factor IRF3, but the mechanism of DNA sensing is unclear. We found that mammalian cytosolic extracts synthesized cyclic guanosine monophosphate-adenosine monophosphate (cyclic GMP-AMP, or cGAMP) in vitro from adenosine triphosphate and guanosine triphosphate in the presence of DNA but not RNA. DNA transfection or DNA virus infection of mammalian cells also triggered cGAMP production. cGAMP bound to STING, leading to the activation of IRF3 and induction of interferon-beta. Thus, cGAMP functions as an endogenous second messenger in metazoans and triggers interferon production in response to cytosolic DNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3855410/" 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/PMC3855410/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Jiaxi -- Sun, Lijun -- Chen, Xiang -- Du, Fenghe -- Shi, Heping -- Chen, Chuo -- Chen, Zhijian J -- AI-093967/AI/NIAID NIH HHS/ -- GM-079554/GM/NIGMS NIH HHS/ -- R01 AI093967/AI/NIAID NIH HHS/ -- R01 GM079554/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Feb 15;339(6121):826-30. doi: 10.1126/science.1229963. Epub 2012 Dec 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258412" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Extracts/chemistry ; Cell Line ; Cyclic AMP/*metabolism ; Cyclic GMP/*metabolism ; Cytosol/*immunology ; DNA/*immunology ; HEK293 Cells ; Herpesvirus 1, Human/immunology ; Humans ; *Immunity, Innate ; Interferon Regulatory Factor-3/metabolism ; Interferon-beta/biosynthesis ; Membrane Proteins/genetics/metabolism ; Mice ; Nucleotides, Cyclic/*metabolism ; RNA Interference ; Second Messenger Systems/*immunology ; Transfection
    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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