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2017 ; 16
(5
): 5997-6003
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Association of a reduction of G?protein coupled receptor 30 expression and the
pathogenesis of preeclampsia
#MMPMID28849224
Feng X
; Zhou L
; Mao X
; Tong C
; Chen X
; Zhao D
; Baker PN
; Xia Y
; Zhang H
Mol Med Rep
2017[Nov]; 16
(5
): 5997-6003
PMID28849224
show ga
Preeclampsia is a pregnancy?specific disorder, which is a leading cause of
maternal and perinatal mortality and morbidity. A lower increase of estrogen,
compared with the increase in progesterone, is associated with pathogenesis of
the disease during pregnancy. G?protein?coupled receptor 30 (GPR30) mediates the
action of estrogen, however remains to be investigated in preeclampsia. The
levels of GPR30 were measured in placentae from uncomplicated pregnancies and
pregnancies complicated by preeclampsia using immunohistochemistry and western
blotting. GPR30 expression was additionally measured in placental HTR8/SVneo
cells following 17??estrogen (E2) treatment in normal or hypoxia?reoxygenation
conditions by western blotting. In addition, the outgrowth of HTR8/SVneo cells
following E2 treatment in hypoxia?reoxygenation conditions was measured. Levels
of GPR30 were significantly reduced in placentae from women with preeclampsia as
compared with uncomplicated pregnancies. Treatment with E2 significantly
increased the expression of GPR30 in HTR8/SVneo cells, in normal and
hypoxia?reoxygenation conditions. Furthermore, treatment with E2 increased the
outgrowth of HTR8/SVneo cells in hypoxia?reoxygenation conditions. The present
study demonstrated lowered placental expression of GPR30 in preeclampsia.
Estrogen treatment increases GPR30 expression in extravillous trophoblast and
GPR30 may be involved in extravillous trophoblast invasion.