人胎儿合成免疫球蛋白及细胞免疫功能在胚胎早期已开始出现,虽不成熟,但已俱有免疫功能的胎儿,不被母体排斥而在免疫学上共存,涉及很多复杂的免疫机制,其中之一就是认为胎儿淋巴细胞有抑制母体淋巴细胞的杀伤作用。有关脐血淋巴细胞的免疫作用已有很多报道,作者仅就其中一部分综述如下: 将男胎脐血淋巴细胞与母血淋巴细胞在加有PHA-P中混合培养,以Y染色体为标记,检查发现全部分裂细胞中有98%来自胎儿。母、胎两者的淋 Human fetal synthesis of immunoglobulins and cellular immune function in embryonic early has begun to appear, although immature, but already have immune function of the fetus, not mothers excluded and immunologically co-exist, involving many complex immune mechanisms, of which One is that fetus lymphocytes inhibit maternal lymphocyte killing effect. There are many reports about the immune function of cord blood lymphocytes. The author summarizes only some of them as follows: Male fetal cord blood lymphocytes and maternal lymphocytes are mixed with PHA-P, labeled with Y chromosome, 98% of all dividing cells were found to be from the fetus. Mother, fetal both shower