交叉展示
MHC I级
抗原处理
主要组织相容性复合体
MHC限制
生物
MHC II级
川东北74
免疫系统
细胞生物学
T细胞
免疫学
获得性免疫系统
抗原呈递
抗原
作者
William R. Heath,Federico Carbone
出处
期刊:Nature Reviews Immunology
[Springer Nature]
日期:2001-11-01
卷期号:1 (2): 126-134
被引量:456
摘要
T lymphocytes recognize peptide antigens presented by class I and class II molecules encoded by the major histocompatibility complex (MHC). Classical antigen-presentation studies showed that MHC class I molecules present peptides derived from proteins synthesized within the cell, whereas MHC class II molecules present exogenous proteins captured from the environment. Emerging evidence indicates, however, that dendritic cells have a specialized capacity to process exogenous antigens into the MHC class I pathway. This function, known as cross-presentation, provides the immune system with an important mechanism for generating immunity to viruses and tolerance to self.
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