对合成的多肽及天然的蛋白质的抗体应答的遗传控制,取决于胸腺派生细胞的存在,并且通常以 IgG 的水平来表达。对于另外一些抗原如Ⅲ型肺炎球菌多糖体等的应答,则主要是由产生抗体细胞的 IgM 合成水平来表达。这两种抗体的产生,在不同程度上都受胸腺派生细胞的影响,而 IgG 对胸腺切除尤为敏感。 The genetic control of the antibody response to synthetic polypeptides and native proteins depends on the presence of thymus-derived cells and is usually expressed at the level of IgG. The response to other antigens, such as type III pneumococcal polysaccharides, etc., is mainly expressed by IgM synthesis levels that produce antibody cells. The production of these two antibodies, to varying degrees, is affected by thymic-derived cells, which are particularly sensitive to thymectomy.