结构相似的不同抗原之间竞争性调节 Antigen recognition T cell response APC Peptide-specific naive T cell Proliferation and differentiation 八 Native → YOK Restimulation Failure to respond Altered peptide gand(AP with native peptide PL) to native peptide (anergy)结构相似的不同抗原之间竞争性调节