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  • 1
    Publication Date: 2008-07-19
    Description: When intracellular pathogens invade mammalian hosts, naive CD8+ T cells differentiate into cytotoxic killers, which lyse infected target cells and secrete cytokines that activate intracellular microbicides. We show that CD8+ T cells deficient in the transcription factors T-bet and eomesodermin (Eomes) fail to differentiate into functional killers required for defense against lymphocytic choriomeningitis virus. Instead, virus-specific CD8+ T cells lacking both T-bet and Eomes differentiate into an interleukin-17-secreting lineage, reminiscent of the helper T cell fate that has been implicated in autoimmunity and extracellular microbial defense. Upon viral infection, mice with T cells lacking both T-bet and Eomes develop a CD8+ T cell-dependent, progressive inflammatory and wasting syndrome characterized by multi-organ infiltration of neutrophils. T-bet and Eomes, thus, ensure that CD8+ T cells adopt an appropriate course of intracellular rather than extracellular destruction.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2807624/" 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/PMC2807624/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Intlekofer, Andrew M -- Banerjee, Arnob -- Takemoto, Naofumi -- Gordon, Scott M -- Dejong, Caitlin S -- Shin, Haina -- Hunter, Christopher A -- Wherry, E John -- Lindsten, Tullia -- Reiner, Steven L -- AI007532/AI/NIAID NIH HHS/ -- AI042334/AI/NIAID NIH HHS/ -- AI042370/AI/NIAID NIH HHS/ -- AI061699/AI/NIAID NIH HHS/ -- AI071309/AI/NIAID NIH HHS/ -- AI076458/AI/NIAID NIH HHS/ -- R01 AI042370/AI/NIAID NIH HHS/ -- R01 AI042370-12/AI/NIAID NIH HHS/ -- R01 AI061699/AI/NIAID NIH HHS/ -- R01 AI061699-05/AI/NIAID NIH HHS/ -- R01 AI071309/AI/NIAID NIH HHS/ -- R01 AI071309-01/AI/NIAID NIH HHS/ -- R01 AI076458/AI/NIAID NIH HHS/ -- R01 AI076458-02/AI/NIAID NIH HHS/ -- T32 CA009140/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2008 Jul 18;321(5887):408-11. doi: 10.1126/science.1159806.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18635804" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/immunology ; Arenaviridae Infections/*immunology/pathology/virology ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/*immunology/*metabolism ; Cell Differentiation ; Cytotoxicity, Immunologic ; Interferon-gamma/metabolism ; Interleukin-17/*metabolism ; Lymphocyte Depletion ; *Lymphocytic choriomeningitis virus/immunology/isolation & ; purification/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; T-Box Domain Proteins/deficiency/genetics/*physiology ; Virus Replication ; Wasting Syndrome/immunology/pathology/virology
    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: 2012-12-01
    Description: Chronic infections strain the regenerative capacity of antiviral T lymphocyte populations, leading to failure in long-term immunity. The cellular and molecular events controlling this regenerative capacity, however, are unknown. We found that two distinct states of virus-specific CD8(+) T cells exist in chronically infected mice and humans. Differential expression of the T-box transcription factors T-bet and Eomesodermin (Eomes) facilitated the cooperative maintenance of the pool of antiviral CD8(+) T cells during chronic viral infection. T-bet(hi) cells displayed low intrinsic turnover but proliferated in response to persisting antigen, giving rise to Eomes(hi) terminal progeny. Genetic elimination of either subset resulted in failure to control chronic infection, which suggests that an imbalance in differentiation and renewal could underlie the collapse of immunity in humans with chronic infections.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3653769/" 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/PMC3653769/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paley, Michael A -- Kroy, Daniela C -- Odorizzi, Pamela M -- Johnnidis, Jonathan B -- Dolfi, Douglas V -- Barnett, Burton E -- Bikoff, Elizabeth K -- Robertson, Elizabeth J -- Lauer, Georg M -- Reiner, Steven L -- Wherry, E John -- 059312/Wellcome Trust/United Kingdom -- AI061699/AI/NIAID NIH HHS/ -- AI0663445/AI/NIAID NIH HHS/ -- AI076458/AI/NIAID NIH HHS/ -- AI078897/AI/NIAID NIH HHS/ -- AI082630/AI/NIAID NIH HHS/ -- AI083022/AI/NIAID NIH HHS/ -- HHSN266200500030C/AI/NIAID NIH HHS/ -- HHSN266200500030C/PHS HHS/ -- P01 AI078897/AI/NIAID NIH HHS/ -- P30 CA016520/CA/NCI NIH HHS/ -- P30 DK043351/DK/NIDDK NIH HHS/ -- R01 AI042370/AI/NIAID NIH HHS/ -- R01 AI061699/AI/NIAID NIH HHS/ -- R01 AI076458/AI/NIAID NIH HHS/ -- T32 AI007632/AI/NIAID NIH HHS/ -- T32-AI-07324/AI/NIAID NIH HHS/ -- U19 AI082630/AI/NIAID NIH HHS/ -- U19 AI083022/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1220-5. doi: 10.1126/science.1229620.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23197535" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD8-Positive T-Lymphocytes/*immunology ; Hepatitis B, Chronic/*immunology ; Humans ; Liver/virology ; Lymphocyte Activation ; Mice ; Mice, Knockout ; Stem Cells/immunology ; T-Box Domain Proteins/genetics/*metabolism ; T-Lymphocyte Subsets/*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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