Placental endovascular extravillous trophoblasts (enEVTs) educate maternal T-cell differentiation along the maternal-placental circulation.

ABSTRACT: OBJECTIVES:During human pregnancy, the endothelial cells of the uterine spiral arteries (SPA) are extensively replaced by a subtype of placental trophoblasts, endovascular extravillous trophoblasts (enEVTs), thus establishing a placental-maternal circulation. On this pathway, foetus-derived placental villi and enEVTs bath into the maternal blood that perfuses along SPA being not attacked by the maternal lymphocytes. We aimed to reveal the underlying mechanism of such immune tolerance. METHODS:In situ hybridization, immunofluorescence, ELISA and FCM assay were performed to examine TGF-β1 expression and distribution of regulatory T cells (Tregs) along the placental-maternal circulation route. The primary enEVTs, interstitial extravillous trophoblasts (iEVTs) and decidual endothelial cells (d

SUBMITTER: Ma Y 

PROVIDER: S-EPMC7260064 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature