获得性免疫系统的“五项基本原则” 1、淋巴细胞和淋巴样器官( Lymphocytes and lymphoid organs 个克隆,一种受体( One clone, one receptor TCR,BCR) 3、克隆选择与扩增( Clonalselection and expansion特异性) 4、克隆清除与自身耐受( Clonal deletion and self-olerance耐受性) 5、抗原处理和递呈( Antigen processing and presentation MHC获得性免疫系统的 “五项基本原则” 2 、一个克隆，一种受体 (One clone，one receptor TCR,BCR) 3 、克隆选择与扩增( Clonal selection and expansion 特异性) 4 、克隆清除与自身耐受 (Clonal deletion and self-olerance 耐受性) 1、淋巴细胞和淋巴样器官 (Lymphocytes and lymphoid organs) 5、抗原处理和递呈 (Antigen processing and presentation MHC)