title: The effects of human chorionic gonadotrophin, progesterone and oestradiol on trophoblast function.
abstract: Remodelling of the uterine vasculature during the first trimester of human pregnancy requires invasion of trophoblast from the placenta into decidual spiral arterioles. The pregnancy-associated hormones human chorionic gonadotropin (hCG), progesterone (P(4)) and oestradiol (E(2)) are present at high concentrations at the maternal-fetal interface during the remodelling period and thus may contribute to the regulation of trophoblast movement. This study examined the effects of these hormones on trophoblast functions. HTR8/SVneo cells were treated with hCG (5-100mIU/mL), P(4) (20nM-20μM) or E(2) (0.07-734nM). hCG significantly stimulated migration and MMP-9 activity but did not affect cell numbers. P(4) significantly inhibited migration, MMP-2 and -9 activity and reduced cell numbers. E(2) had no effect on migration, MMP activity or cell numbers. We conclude that hCG and P(4), but not E(2), play direct roles in controlling trophoblast invasion, acting as positive and negative stimuli respectively to regulate trophoblast movement during vascular remodelling in early pregnancy.
authors.affiliation: Department of Peinatal Medicine, Pregnancy Research Centre, University of Melbourne, Royal Women’s Hospital, Parkville, Victoria, Australia.
authors.forename: Jessie Z-J
authors.initials: JZ
authors.lastname: Chen
authors.forename: May H
authors.initials: MH
authors.lastname: Wong
authors.forename: Shaun P
authors.initials: SP
authors.lastname: Brennecke
authors.forename: Rosemary J
authors.initials: RJ
authors.lastname: Keogh
mesh_terms: D002460:Cell Line; D002465:Cell Movement / Q000187:drug effects; D049109:Cell Proliferation / Q000187:drug effects; D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D004958:Estradiol / Q000494:pharmacology*; D005260:Female; D006801:Humans; D020778:Matrix Metalloproteinase 2 / Q000378:metabolism; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology*; D011994:Recombinant Proteins / Q000494:pharmacology; D014327:Trophoblasts / Q000166:cytology / Q000187:drug effects* / Q000502:physiology; D014599:Uterus / Q000098:blood supply
chemical_list: D006063:Chorionic Gonadotropin; D011994:Recombinant Proteins; D011374:Progesterone; D004958:Estradiol; C522361:MMP2 protein, human; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9