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抗原提呈细胞 (Ａｎｔｉｇｅｎ ｐｒｅｓｅｎｔｉｎｇＣｅｌｌｓ,ＡＰＣ)与Ｔ细胞之间稳定的相互作用除了依靠Ｔ细胞抗原受体 (ＴＣＲ)与其配体间的绝对亲合力外 ,尚靠相关的分子在胞膜上向初始活化点移动而形成的所谓的“帽”结构 ,“帽”的形成直接结果是导致免疫“突触”的
In addition to the absolute affinity between the T cell antigen receptor (TCR) and its ligands, stable interaction between antigen presenting cells (APCs) and T cells depends on the molecules on the membrane The so-called “cap” structure formed by the movement of activation points, the direct result of the formation of “caps,” is the immunological “synapse”