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中文摘要
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描述(由申请人提供):本研究旨在确定体内和体外产生CD4细胞毒性T淋巴细胞或CD4 CTL的条件和因素,并确定体内CD4 CTL在抗病毒免疫和免疫诱导病理中的直接作用。许多病毒建立了持续感染,这些感染大多是无害的。然而,这些慢性病毒感染的免疫控制也与病毒诱导的自身免疫有关,而在缺乏免疫保护的情况下,如在免疫受损的个体中,病毒的再激活经常导致致命疾病。目前尚不清楚哪些免疫细胞能控制持续性病毒或引起免疫病理,但细胞溶解性CD4效应细胞与慢性病毒感染有关
英文摘要
DESCRIPTION (provided by applicant): The study here sets out to define the conditions and factors involved in the in vivo and in vitro generation of CD4 cytotoxic T lymphocytes or CD4 CTL, in addition to determining the direct roles for CD4 CTL in vivo in antiviral immunity and immune-induced pathology. Many viruses establish persistent infections, which are mostly innocuous. However, immune control of these chronic viral infections has also been linked with viral-induced autoimmunity whereas in the absence of immune protection as in immune compromised individuals, reactivation of the viruses frequently causes lethal diseases. It is not known which immune cells keep persistent viruses under control or cause immune pathology, but cytolytic CD4 effector cells have been associated with chronic viral infections as well as with viral- induced autoimmunity. However, a direct role for CD4 CTL has not been determined and their specific contributions in health and disease remain unexplored. Recently, we published a study showing that CD4 CTL form a separate effector subset distinct from any CD4 T-helper subtype. We further determined that CD4 CTL are progeny of conventional na¿ve CD4 T cells that functionally reprogram in response to chronic antigen-stimulation such as chronic viral infections, and become MHC class II-restricted CTL. Using a combination of these profound new insights together with sophisticated gain- and loss-of-function approaches, we propose here to test the hypothesis that CD4 CTL play critical roles in controlling chronic viral infection and furthermore, that aberrant regulation of these cells might lead to viral-induced immune pathology and autoimmunity.
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The Role of Cytoplasmic and Nuclear THEMIS in Immature and Mature T cells
  • 批准号:
    10331846
  • 项目类别:
  • 资助金额:
    $68.84万
  • 财政年份:
    2020
  • 负责人:
    HILDE MC CHEROUTRE
  • 依托单位:
The Role of Cytoplasmic and Nuclear THEMIS in Immature and Mature T cells
  • 批准号:
    9888243
  • 项目类别:
  • 资助金额:
    $68.84万
  • 财政年份:
    2020
  • 负责人:
    HILDE MC CHEROUTRE
  • 依托单位:
The Role of Cytoplasmic and Nuclear THEMIS in Immature and Mature T cells
  • 批准号:
    10552636
  • 项目类别:
  • 资助金额:
    $68.84万
  • 财政年份:
    2020
  • 负责人:
    HILDE MC CHEROUTRE
  • 依托单位:
Control of the Functional Fate of CD4 T Cells by LncRNA-Switch
  • 批准号:
    9170246
  • 项目类别:
  • 资助金额:
    $53.55万
  • 财政年份:
    2016
  • 负责人:
    HILDE MC CHEROUTRE
  • 依托单位:
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