1、(不表达不表达MHC-类子,不降解抗原类子,不降解抗原)MALT功能参与粘膜局部免疫应答参与粘膜局部免疫应答 粘膜免疫屏障粘膜免疫屏障产生分泌型产生分泌型IgA(SIgA)有大量辅助抗体生成的有大量辅助抗体生成的Th2细胞和促细胞和促 进进IgA生成的细胞因子生成的细胞因子(如如IL-5)有表达有表达IgA的的B细胞定居于此细胞定居于此小小 结结熟悉免疫系统的组成熟悉免疫系统的组成 掌握免疫器官的种类和功能掌握免疫器官的种类和功能掌握胸腺微环境、掌握胸腺微环境、HEV熟悉淋巴细胞归巢、淋巴细胞再循环的熟悉淋巴细胞归巢、淋巴细胞再循环的 概念概念i*Ik)Kn0Mp2Ps4Ru7Uw9WzcYB
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