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Yang Wang, Sumit K. Subudhi, Robert A. Anders, James Lo, Yonglian Sun, Sarah Blink, Yugang Wang, Jing Wang, Xiaojuan Liu, Karin Mink, Daniel Degrandi, Klaus Pfeffer, Yang-Xin Fu
J Clin Invest. 2005;
115(3):711
doi:10.1172/JCI22982
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erpesvirus entry mediator (HVEM), a TNF receptor superfamily member, has been previously described as a T cell costimulatory receptor. Surprisingly, HVEM–/– T cells showed enhanced responses to in vitro concanavalin A (ConA) stimulation when compared with WT T cells. Consistent with these findings, HVEM–/– mice exhibited increased morbidity and mortality as compared with WT mice in a model of ConA-mediated T cell–dependent autoimmune hepatitis. HVEM–/– mice produced higher levels of multiple cytokines, which were dependent on the presence of CD4+ T cells. Furthermore, HVEM–/– mice were more susceptible to MOG peptide–induced experimental autoimmune encephalopathy, and they showed increased T cell proliferation and cytokine production in response to antigen-specific challenge. Taken together, our data revealed an unexpected regulatory role of HVEM in T cell–mediated immune responses and autoimmune diseases.
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