许多事实表明,肿瘤细胞与胚胎间有不少相似之处,比如肿瘤细胞可产生胚胎膜性抗原、甲胎蛋白、癌胚抗原还有一些胚胎性同工酶谱等;但肿瘤细胞与胚胎细胞间又有质的差异,胚胎细胞是正常的分化,是按一定规律和顺序有条不紊地进行分裂;肿瘤细胞是异常分化,持续不断地繁殖 Many facts show that there are many similarities between tumor cells and embryos. For example, tumor cells can produce embryonal membranous antigens, alpha fetoprotein, carcinoembryonic antigen, and some embryo isoenzymes, but tumor cells and embryonic cells There is a qualitative difference between the embryonic cells and the normal division of the cells. They are divided according to a certain rule and order; the tumor cells are abnormally differentiated and continue to multiply.