Ag procession 排列

Cytosolic pathway胞质途径

Endocytic pathway 胞吞途径

Restrict lymphocytes淋巴细胞 interaction

• The antigenic peptide recognized by T cell receptor T细胞受体识别的抗原肽
• MHC molecule also contacts with special parts of this receptor MHC分子还与受体的特殊部分接触

Induce isotransplant rejection 同系移植排斥反应

• Presenting alloantigenic peptide to stimulate immune response of host.显示异源肽来刺激宿主的免疫反应

T cell differentiation T细胞的分化