Immunohistochemical localization of chorionic gonadotrophin on baboon placenta, dispersed trophoblast cells and those derived from blastocysts grown in vitro.


An immunohistochemical technique using a high specificity antiserum against baboon CG was used to demonstrate the presence of a CG-like material on: (1) fixed baboon placental sections collected between 31 and 39 days of gestation, (2) trophoblast monolayers derived from hatched embryos grown in vitro for 15 days and (3) trophoblast cells derived from cells… (More)