国际肿瘤学杂志››2012,Vol. 39››Issue (1): 8-11.

• 综述 •上一篇下一篇

调节性T细胞与肿瘤免疫

张元莉, 关泉林, 祝秉东

  1. 甘肃730000兰州大学第一医院肿瘤外科(张元莉关泉林)兰州大学医学院结核病研究中心(祝秉东
  • 出版日期:2012-01-08发布日期:2013-11-11
  • 通讯作者:关泉林, E-mail:guanquanlin@163.com E-mail:guanquanlin@163.com
  • 基金资助:

    国家自然科学基金资助项目81072499

Regulatory T cell and tumor immunity

ZHANG Yuan-Li, GUAN Quan-Lin, ZHU Bing-Dong

  1. Department of Surgical Oncology ,First Hospital of Lanzhou University, Lanzhou 730000 ,China
  • Online:2012-01-08Published:2013-11-11
  • Contact:Correspongding author: GUAN Quan-lin, E-mail: guanquanlin@163.com E-mail:guanquanlin@163.com

摘要:调节性T细胞Treg)是一类有负调节作用的T细胞亚群,包括CD4+Treg、CD8+Treg、NKT Treg和DN Treg细胞等4大类,主要发挥抑制性免疫调节功能,是肿瘤免疫逃逸的重要因素。这些机制包括分泌多种免疫抑制性细胞因子、分泌颗粒酶和穿孔素杀伤效应细胞、竞争和抑制IL-2、通过T淋巴细胞毒性相关抗原(CTLA)-4影响Treg的分化和增殖等。以Treg及免疫抑制性分子作为靶点,清除Treg,控制Treg的数量和功能,增强机体对肿瘤的免疫应答,为肿瘤免疫治疗提供了新思路。

关键词:T淋巴细胞,调节性Ι肿瘤Ι免疫疗法

Abstract:Regulatory T cells (Treg), a group of negative regulatory cells, have four subsets: CD4+Treg, CD8+Treg, NKT Treg and DN Treg cells. They play an essential role in the inhibitive immune-regulation and might be the key factors of neoplasms immune escape. These mechanisms include inhibiting the effector cell function by inhibitory cytokines, killing effector cells by granzyme and perforin, competition and inhibiting IL-2, and affecting Treg differentiation and proliferation by regulating the function of CTLA-4, etc. Tumor immunotherapies targeting Treg and related immunosuppressive factors, such as remove Treg or controling the numbers and functions,enhances the immune response against tumors, which might offer a new method of tumor immunotherapy.