Schindler A M, Bordignon P, Bischof P
Placenta. 1984 May-Jun;5(3):227-35. doi: 10.1016/s0143-4004(84)80032-6.
In an immunoperoxidase study, pregnancy-associated placental protein A (PAPP-A) was localized to the cytoplasm of decidual stromal cells, the villous syncytiotrophoblast and on the surface of placental trophoblast. A decidual and a trophoblastic origin is suggested for PAPP-A, and its presence on the surface of the syncytiotrophoblast is interpreted as a possible immunoprotective layer.
在一项免疫过氧化物酶研究中,妊娠相关胎盘蛋白A(PAPP-A)定位于蜕膜基质细胞、绒毛合体滋养层细胞的细胞质以及胎盘滋养层表面。提示PAPP-A起源于蜕膜和滋养层,其在合体滋养层表面的存在被解释为可能是一层免疫保护层。