胸腺内阴性选择的发生过程也就是中枢免疫耐受的形成过程，即自身反应性胸腺细胞被克隆清除或处于免疫无能状态的过程。
The process of thymic negative selection is the process of the central immunologic tolerance, namely the process of autoreac-tive thymic cells being deleted or becoming allergy.
阴性选择是幼稚T细胞在分化发育过程中一个非常重要的步骤。
Negtive selection plays a very important role in maturate of T cell.
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