Candesartan Does Not Activate PPARγ and Its Target Genes in Early Gestation Trophoblasts

Angiotensin II receptor 1 blockers are commonly used to treat hypertension in women of childbearing age. While the fetotoxic effects of these drugs in the second and third trimesters of pregnancy are well documented, their possible impacts on placenta development in early gestation are unknown. Cand...

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Main Authors: Lena Neuper, Daniel Kummer, Désirée Forstner, Jacqueline Guettler, Nassim Ghaffari-Tabrizi-Wizsy, Cornelius Fischer, Herbert Juch, Olivia Nonn, Martin Gauster
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/20/12326
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author Lena Neuper
Daniel Kummer
Désirée Forstner
Jacqueline Guettler
Nassim Ghaffari-Tabrizi-Wizsy
Cornelius Fischer
Herbert Juch
Olivia Nonn
Martin Gauster
author_facet Lena Neuper
Daniel Kummer
Désirée Forstner
Jacqueline Guettler
Nassim Ghaffari-Tabrizi-Wizsy
Cornelius Fischer
Herbert Juch
Olivia Nonn
Martin Gauster
author_sort Lena Neuper
collection DOAJ
description Angiotensin II receptor 1 blockers are commonly used to treat hypertension in women of childbearing age. While the fetotoxic effects of these drugs in the second and third trimesters of pregnancy are well documented, their possible impacts on placenta development in early gestation are unknown. Candesartan, a member of this group, also acts as a peroxisome proliferator-activated receptor gamma (PPARγ) agonist, a key regulator shown to be important for placental development. We have previously shown that trophoblasts do not express the candesartan target–receptor angiotensin II type 1 receptor AGTR1. This study investigated the possible role of candesartan on trophoblastic PPARγ and its hallmark target genes in early gestation. Candesartan did not affect the PPARγ protein expression or nuclear translocation of PPARγ. To mimic extravillous trophoblasts (EVTs) and cytotrophoblast/syncytiotrophoblast (CTB/SCT) responses to candesartan, we used trophoblast cell models BeWo (for CTB/SCT) and SGHPL-4 (EVT) cells as well as placental explants. In vitro, the RT-qPCR analysis showed no effect of candesartan treatment on PPARγ target genes in BeWo or SGHPL-4 cells. Treatment with positive control rosiglitazone, another PPARγ agonist, led to decreased expressions of <i>LEP</i> and <i>PPARG1</i> in BeWo cells and an increased expression of PPARG1 in SGHPL-4 cells. Our previous data showed early gestation–placental AGTR1 expression in fetal myofibroblasts only. In a CAM assay, AGTR1 was stimulated with angiotensin II and showed increased on-plant vessel outgrowth. These results suggest candesartan does not negatively affect PPARγ or its target genes in human trophoblasts. More likely, candesartan from maternal serum may first act on fetal-placental AGTR1 and influence angiogenesis in the placenta, warranting further research.
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spelling doaj.art-66f4dbf553af4fbba226ad55b5892dc32023-11-30T22:47:13ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-10-0123201232610.3390/ijms232012326Candesartan Does Not Activate PPARγ and Its Target Genes in Early Gestation TrophoblastsLena Neuper0Daniel Kummer1Désirée Forstner2Jacqueline Guettler3Nassim Ghaffari-Tabrizi-Wizsy4Cornelius Fischer5Herbert Juch6Olivia Nonn7Martin Gauster8Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, AustriaDivision of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, AustriaDivision of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, AustriaDivision of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, AustriaDivision of Immunology, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, 8010 Graz, AustriaInstitute for Medical Systems Biology (BIMSB), 10115 Berlin, GermanyDivision of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, AustriaDivision of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, AustriaDivision of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, AustriaAngiotensin II receptor 1 blockers are commonly used to treat hypertension in women of childbearing age. While the fetotoxic effects of these drugs in the second and third trimesters of pregnancy are well documented, their possible impacts on placenta development in early gestation are unknown. Candesartan, a member of this group, also acts as a peroxisome proliferator-activated receptor gamma (PPARγ) agonist, a key regulator shown to be important for placental development. We have previously shown that trophoblasts do not express the candesartan target–receptor angiotensin II type 1 receptor AGTR1. This study investigated the possible role of candesartan on trophoblastic PPARγ and its hallmark target genes in early gestation. Candesartan did not affect the PPARγ protein expression or nuclear translocation of PPARγ. To mimic extravillous trophoblasts (EVTs) and cytotrophoblast/syncytiotrophoblast (CTB/SCT) responses to candesartan, we used trophoblast cell models BeWo (for CTB/SCT) and SGHPL-4 (EVT) cells as well as placental explants. In vitro, the RT-qPCR analysis showed no effect of candesartan treatment on PPARγ target genes in BeWo or SGHPL-4 cells. Treatment with positive control rosiglitazone, another PPARγ agonist, led to decreased expressions of <i>LEP</i> and <i>PPARG1</i> in BeWo cells and an increased expression of PPARG1 in SGHPL-4 cells. Our previous data showed early gestation–placental AGTR1 expression in fetal myofibroblasts only. In a CAM assay, AGTR1 was stimulated with angiotensin II and showed increased on-plant vessel outgrowth. These results suggest candesartan does not negatively affect PPARγ or its target genes in human trophoblasts. More likely, candesartan from maternal serum may first act on fetal-placental AGTR1 and influence angiogenesis in the placenta, warranting further research.https://www.mdpi.com/1422-0067/23/20/12326candesartanPPARγplacentatrophoblastfirst-trimester pregnancyrosiglitazone
spellingShingle Lena Neuper
Daniel Kummer
Désirée Forstner
Jacqueline Guettler
Nassim Ghaffari-Tabrizi-Wizsy
Cornelius Fischer
Herbert Juch
Olivia Nonn
Martin Gauster
Candesartan Does Not Activate PPARγ and Its Target Genes in Early Gestation Trophoblasts
International Journal of Molecular Sciences
candesartan
PPARγ
placenta
trophoblast
first-trimester pregnancy
rosiglitazone
title Candesartan Does Not Activate PPARγ and Its Target Genes in Early Gestation Trophoblasts
title_full Candesartan Does Not Activate PPARγ and Its Target Genes in Early Gestation Trophoblasts
title_fullStr Candesartan Does Not Activate PPARγ and Its Target Genes in Early Gestation Trophoblasts
title_full_unstemmed Candesartan Does Not Activate PPARγ and Its Target Genes in Early Gestation Trophoblasts
title_short Candesartan Does Not Activate PPARγ and Its Target Genes in Early Gestation Trophoblasts
title_sort candesartan does not activate pparγ and its target genes in early gestation trophoblasts
topic candesartan
PPARγ
placenta
trophoblast
first-trimester pregnancy
rosiglitazone
url https://www.mdpi.com/1422-0067/23/20/12326
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