慢性HBV感染免疫耐受研究进展

Research advances in immune tolerance in chronic hepatitis B virus infection

免疫耐受是T及B淋巴细胞对抗原的特异不应答或负应答表现。按形成时期的不同,免疫耐受可分为中枢耐受和外周耐受。HBV感染后机体对HBV免疫耐受是慢性HBV感染的主要原因。简要介绍了HBe Ag、树突状细胞的功能缺陷、细胞毒性T淋巴细胞低应答、辅助性T淋巴细胞及细胞因子、HBV基因型及基因组的变异、宿主基因多态性在慢性HBV感染免疫耐受形成中的作用及相关研究进展。

Immune tolerance refers to the specific non - response or negative response ofT and B lymphocytes to antigens. According to the period of formation, immune tolerance can be classified into central tolerance and peripheral tolerance. Immune tolerance to hepatitis B virus （HBV） after HBV infection is considered a major cause of chronic HBV infection. This article briefly reviews the rotes of HBeAg, functional defects of dendritic cells, low response of cytotoxic T lymphocytes, T helper cells and cytokines, variations of HBV genotype and genome, and host gene polymorphisms in the development of immune tolerance in chronic HBV infection, as well as related research advances.