包容胎儿、构成胎盘主要成分的滋养层担负着母胎间物质交换以及产生维持妊娠所必需激素的功能,同时它作为一种免疫屏障保护着胎儿免遭母体的排斥。以前,作者曾对滋养层细胞产生的免疫调节因子作过报道。作者发现由滋养层细胞恶变的绒 The trophoblast, which contains the fetus and constitutes the main constituent of the placenta, is responsible for the exchange of maternal and fetal substances and the function of producing hormones necessary for pregnancy. At the same time, it acts as an immune barrier to protect the fetus from maternal rejection. Previously, the authors reported on the immunoregulatory factors produced by trophoblast cells. The authors found that the trophoblast cells were malignant