期刊
HUMAN IMMUNOLOGY
卷 69, 期 11, 页码 771-775出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.humimm.2008.07.016
关键词
Viral infection; CD8+regulatory T cells; Immune suppression; HIV; HCV
类别
Regulatory T cells (T-reg cells) play an important role in the regulation and suppression of immune responses to self- and foreign antigens. Suppressed and impaired host immune responses are a major characteristic of many persistent human virus infections, such as those caused by human immunodeficiency virus (HIV), hepatitis C virus (HCV), and herpes virus. It has recently become evident that immune regulation mediated by T-reg cells may comprise one mechanism that contributes to the impairment of virus-specific immune responses. Indeed, during viral infection, the generation of distinct subsets of CD4+ as well as CD8+ T-reg cells has been reported. The phenotypic and functional heterogeneity of T-reg cell subsets involved in the suppression of virus-specific immune responses suggests that different mechanisms and factors contribute to the generation of those cells during viral infection. This review focuses on the CD8+ T-reg cell subset and summarizes current knowledge about the induction and function of CD8+ T-reg cells in persistent human virus infections. (c) 2008 American Society for Histocompatibility and Immunogenetics. Published by Elsevier Inc. All rights reserved.
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