细胞免疫的发生和调节依赖于胸腺的作用。移植免疫、肿瘤免疫以及病毒、分枝杆菌、真菌和原虫的免疫等,都受胸腺的控制。依赖于胸腺的淋巴细胞群统称为T细胞。目前认为T细胞亚群(如辅助细胞、抑制细胞、,应效细胞等)也可以影响B细胞(浆细胞)产生抗体的活性。 关于胸腺如何控制T细胞的发生,尚不清楚,但目前已知这一过程主要是通过内分泌来完成的。胸腺产生的胸腺素可能由多种激素或因子组成,对胸腺内或外周T细胞前体的 The occurrence and regulation of cellular immunity depends on the role of the thymus. Immune immunity, tumor immunity, as well as viruses, mycobacteria, fungi and protozoa immunity, are controlled by the thymus. Thymic lymphocyte populations are collectively referred to as T cells. It is currently believed that T cell subsets (such as helper cells, inhibitory cells, and effector cells, etc.) can also affect the activity of B cells (plasma cells) producing antibodies. How the thymus controls the occurrence of T cells is unclear, but it is now known that this process is done mainly through endocrine. Thymosin produced by the thymus may be composed of a variety of hormones or factors, thymus or peripheral T cell precursor