Deficiency of PARP-1 and PARP-2 in the mouse uterus results in decidualization failure and pregnancy loss.
Fiche publication
Date publication
octobre 2021
Journal
Proceedings of the National Academy of Sciences of the United States of America
Auteurs
Membres identifiés du Cancéropôle Est :
Dr DANTZER Françoise
Tous les auteurs :
Kelleher AM, Setlem R, Dantzer F, DeMayo FJ, Lydon JP, Kraus WL
Lien Pubmed
Résumé
Miscarriage is a common complication of pregnancy for which there are few clinical interventions. Deficiency in endometrial stromal cell decidualization is considered a major contributing factor to pregnancy loss; however, our understanding of the underlying mechanisms of decidual deficiency are incomplete. ADP ribosylation by PARP-1 and PARP-2 has been linked to physiological processes essential to successful pregnancy outcomes. Here, we report that the catalytic inhibition or genetic ablation of PARP-1 and PARP-2 in the uterus lead to pregnancy loss in mice. Notably, the absence of PARP-1 and PARP-2 resulted in increased p53 signaling and an increased population of senescent decidual cells. Molecular and histological analysis revealed that embryo attachment and the removal of the luminal epithelium are not altered in uterine , knockout mice, but subsequent decidualization failure results in pregnancy loss. These findings provide evidence for a previously unknown function of PARP-1 and PARP-2 in mediating decidualization for successful pregnancy establishment.
Mots clés
ADP-ribosylation, PARP-1, PARP-2, pregnancy, uterus
Référence
Proc Natl Acad Sci U S A. 2021 Oct 5;118(40):