TY - JOUR
T1 - Placental (pro)renin receptor expression and plasma soluble (pro)renin receptor levels in preeclampsia
AU - Nartita, Tatsuya
AU - Ichihara, Atsuhiro
AU - Matsuoka, Kikumi
AU - Takai, Yasushi
AU - Bokuda, Kanako
AU - Morimoto, Satoshi
AU - Itoh, Hiroshi
AU - Seki, Hiroyuki
N1 - Funding Information:
This study was supported by Grant-in-Aid for Japan Society for the Study of hypertension in pregnancy research grant (to T.N.), a JSPS KAKENHI Grant Number 25293198 (to A.I.)
Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Introduction The prorenin receptor ((P)RR) contributes to the regulation of the tissue renin-angiotensin system (RAS) and the function of V-ATPase, which are essential for Wnt signaling. Thus, (P)RRs may be involved in the control both of feto-placental and maternal circulation during pregnancy. This study was conducted to clarify how placental (P)RR expression and plasma soluble (P)RR [s(P)RR] levels are associated with blood pressure elevations and renal function during pregnancy. Methods We conducted a cross-sectional study, conducted at Saitama medical center in 2010-2013. Preeclamptic women (n = 16) diagnosed according to the criteria of Japan Society of Obstetrics and Gynecology and normotensive pregnant women (n = 15) participated in the study. We measured the expression of (P)RR in the placenta, plasma s(P)RR levels, systolic blood pressure (SBP), and estimated glomerular filtration rate (EGFR). Results Placental expression of (P)RR was significantly higher in preeclamptic women than in normotensive pregnant women. The plasma s(P)RR levels were significantly higher in preeclamptic women than in normotensive pregnant women. Systolic blood pressure (SBP) was positively correlated with placental (P)RR levels (P = 0.0001) and plasma s(P)RR levels (P = 0.005) in all pregnant women. In preeclamptic women, SBP was positively correlated with placental (P)RR levels (P = 0.004), but not with plasma s(P)RR levels (P = 0.15). The EGFR was negatively correlated with placental (P)RR levels (P = 0.02) and plasma s(P)RR levels (P = 0.0002) in all pregnant women. In preeclamptic women, EGFR was negatively correlated with plasma s(P)RR levels (P = 0.006), but not with placental (P)RR levels (P = 0.93). Discussion Placental (P)RR can be involved in blood pressure regulation via the tissue RAS. On the other hand, plasma s(P)RR may be involved in the pathogenesis of decreased renal function in preeclampsia.
AB - Introduction The prorenin receptor ((P)RR) contributes to the regulation of the tissue renin-angiotensin system (RAS) and the function of V-ATPase, which are essential for Wnt signaling. Thus, (P)RRs may be involved in the control both of feto-placental and maternal circulation during pregnancy. This study was conducted to clarify how placental (P)RR expression and plasma soluble (P)RR [s(P)RR] levels are associated with blood pressure elevations and renal function during pregnancy. Methods We conducted a cross-sectional study, conducted at Saitama medical center in 2010-2013. Preeclamptic women (n = 16) diagnosed according to the criteria of Japan Society of Obstetrics and Gynecology and normotensive pregnant women (n = 15) participated in the study. We measured the expression of (P)RR in the placenta, plasma s(P)RR levels, systolic blood pressure (SBP), and estimated glomerular filtration rate (EGFR). Results Placental expression of (P)RR was significantly higher in preeclamptic women than in normotensive pregnant women. The plasma s(P)RR levels were significantly higher in preeclamptic women than in normotensive pregnant women. Systolic blood pressure (SBP) was positively correlated with placental (P)RR levels (P = 0.0001) and plasma s(P)RR levels (P = 0.005) in all pregnant women. In preeclamptic women, SBP was positively correlated with placental (P)RR levels (P = 0.004), but not with plasma s(P)RR levels (P = 0.15). The EGFR was negatively correlated with placental (P)RR levels (P = 0.02) and plasma s(P)RR levels (P = 0.0002) in all pregnant women. In preeclamptic women, EGFR was negatively correlated with plasma s(P)RR levels (P = 0.006), but not with placental (P)RR levels (P = 0.93). Discussion Placental (P)RR can be involved in blood pressure regulation via the tissue RAS. On the other hand, plasma s(P)RR may be involved in the pathogenesis of decreased renal function in preeclampsia.
KW - Preeclampsia
KW - Renin-angiotensin system (RAS)
KW - Soluble (pro)renin receptor
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U2 - 10.1016/j.placenta.2015.11.007
DO - 10.1016/j.placenta.2015.11.007
M3 - Article
C2 - 26684753
AN - SCOPUS:84954385928
SN - 0143-4004
VL - 37
SP - 72
EP - 78
JO - Placenta
JF - Placenta
ER -