کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3353930 1216898 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hepatic Interleukin-7 Expression Regulates T Cell Responses
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Hepatic Interleukin-7 Expression Regulates T Cell Responses
چکیده انگلیسی

SummarySystemic cytokine activity in response to Toll-like receptor (TLR) signaling induces the expression of various proteins in the liver after infections. Here we show that Interleukin-7 (IL-7), the production of which was thought to occur at a constant rate in vivo, was a hepatically expressed protein that directly controled T cell responses. Depletion of IL-7 expression in the liver abrogated several TLR-mediated T cell events, including enhanced CD4+ T cell and CD8+ T cell survival, augmented CD8+ T cell cytotoxic activity, and the development of experimental autoimmune encephalitis, a Th17 cell-mediated autoimmune disease. Thus, T cell responses are regulated by hepatocyte-derived IL-7, which is expressed in response to TLR signaling in vivo. We suggested that TLR-induced IL-7 expression in the liver, which is an acute-phase response, may be a good diagnostic and therapeutic target for efficient vaccine developments and for conditions characterized by TLR-mediated T cell dysregulation, including autoimmune diseases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 30, Issue 3, 20 March 2009, Pages 447–457
نویسندگان
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