蛋白酶体是普遍存在于所有被检测过的细胞中的一种保守的蛋白酶复合物 ,有着广泛的功能。它在 MHC- 类抗原的加工呈递过程中起着非常重要的作用 ,而 MHC- 类抗原的加工呈递效率对肿瘤和胞内感染性疾病的防治特别重要 ,因此 ,本文对蛋白酶体的结构、MHC- 类抗原加工呈递的作用及其作用的分子机制研究进展作一综述 The proteasome is a conserved protease complex that is ubiquitous in all tested cells and has a wide range of functions. It plays a very important role in the process presentation of MHC-like antigens. However, the efficiency of MHC-class antigen presentation and processing is particularly important for the prevention and treatment of tumor and intracellular infectious diseases. Therefore, the structure of proteasome, MHC - The Review of Molecular Antigen Processes Presenting and Its Molecular Mechanisms