Effects of adiponectin on human trophoblast invasion.
Adiponectin is an adipokine with insulin-sensitizing, anti-inflammatory, anti-atherogenic, and anti-proliferative effects. The expression of specific adiponectin receptors in the placenta and in the endometrium suggests a role for this cytokine in placental development, but this role has not yet been elucidated. The invasion of trophoblast cells during the first trimester of pregnancy being crucial to placentation process, we have studied adiponectin effects on human trophoblast invasive capacities. We found that adiponectin stimulated human trophoblast cell migration in HTR-8/SVneo cells in a dose-independent manner. In addition, adiponectin also significantly enhanced invasion of HTR-8/SVneo cells and of human extravillous trophoblast from first trimester placenta. These pro-invasive effects of adiponectin in human trophoblasts seem to be mediated in part via increased matrix metalloproteinases (MMP2 and MMP9) activities and via repression of TIMP2 mRNA expression. Our results suggest that adiponectin could be a positive regulator of the early invasion process by modulating the MMP/TIMP balance. Moreover, these results provide an insight into the role of adiponectin in pathological conditions characterized by insufficient or excessive trophoblast invasion.
Benaitreau
Delphine
D
Service de Biochimie et Biologie Moléculaire, UPRES-EA 2493, Faculté de Médecine Paris-Ile de France Ouest, PRES Universud Paris, Centre Hospitalier de Poissy-Saint Germain, Université de Versailles-St-Quentin, Poissy, France.
Dos Santos
Esther
E
Leneveu
Marie-Christine
MC
Alfaidy
Nadia
N
Feige
Jean-Jacques
JJ
de Mazancourt
Philippe
P
Pecquery
René
R
Dieudonné
Marie-Noëlle
MN
D052242:Adiponectin / Q000235:genetics / Q000494:pharmacology / Q000502:physiology; D001483:Base Sequence; D002460:Cell Line; D002465:Cell Movement / Q000187:drug effects / Q000502:physiology; D017931:DNA Primers / Q000235:genetics; D010064:Embryo Implantation / Q000502:physiology; D005260:Female; D015870:Gene Expression / Q000187:drug effects; D006801:Humans; D066298:In Vitro Techniques; D020778:Matrix Metalloproteinase 2 / Q000378:metabolism; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism; D010929:Placentation / Q000502:physiology; D011247:Pregnancy; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D054419:Receptors, Adiponectin / Q000235:genetics; D011994:Recombinant Proteins / Q000494:pharmacology; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000235:genetics; D019716:Tissue Inhibitor of Metalloproteinase-2 / Q000235:genetics; D014327:Trophoblasts / Q000166:cytology / Q000187:drug effects* / Q000502:physiology
C499918:ADIPOQ protein, human; C475418:ADIPOR1 protein, human; C475420:ADIPOR2 protein, human; D052242:Adiponectin; D017931:DNA Primers; D012333:RNA, Messenger; D054419:Receptors, Adiponectin; D011994:Recombinant Proteins; D019715:Tissue Inhibitor of Metalloproteinase-1; D019716:Tissue Inhibitor of Metalloproteinase-2; C522361:MMP2 protein, human; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9