ArticleThe journal of histochemistry and cytochemistry : official journal of the Histochemistry Society2014
Expression of G-protein subunit α-14 is increased in human placentas from preeclamptic pregnancies.
Article in The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 13 citations in OpenAlex.
- G Protein α Subunit 14 Mediates Fibroblast Growth Factor 2-Induced Cellular Responses in Human Endothelial Cells.Journal of cellular physiology · 2019Article
- GNA11 differentially mediates fibroblast growth factor 2- and vascular endothelial growth factor A-induced cellular responses in human fetoplacental endothelial cells.The Journal of physiology · 2018Article
- Notch signaling via regulation of RB and p-AKT but not PIK3CG contributes to MIA PaCa-2 cell growth and migration to affect pancreatic carcinogenesis.Oncology letters · 2018Article
- ITE inhibits growth of human pulmonary artery endothelial cells.Experimental lung research · 2017Article
- GNA14 Somatic Mutation Causes Congenital and Sporadic Vascular Tumors by MAPK Activation.American journal of human genetics · 2016Article
- Preeclampsia does not alter vascular growth and expression of CD31 and vascular endothelial cadherin in human placentas.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2015Article
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
Abstract
G-proteins mediate cellular function upon interaction with G-protein coupled receptors. Of the 16 mammalian G-protein α subunits identified, G-protein subunit α-11 (GNA11) and -14 (GNA14) have been implicated in modulating hypertension and endothelial function. However, little is known about their expression and roles in human placentas. Here, we examined GNA11 and GNA14 protein expression in first trimester (FT), normal term (NT), and severe preeclamptic (sPE) human placentas as well as in NT human umbilical cords. We found that GNA11 and GNA14 were immunolocalized primarily in trophoblasts, villous stromal cells, and endothelial cells in placentas as well as in endothelial and/or smooth muscle cells of the umbilical cord artery and vein. Western blotting revealed that the GNA14, but not GNA11, protein levels were increased (2.5-2.9 fold; p<0.01) in sPE vs. NT placentas. GNA11 protein was detected only in NT, but not FT, placentas, whereas GNA14 protein levels were increased (7.7-10.6 fold; p<0.01) in NT vs. FT placentas. Thus, GNA11 and GNA14 may mediate the function of several cell types in placentas. Moreover, the high expression of GNA14 in sPE placentas may also imply its importance in sPE pregnancies as in the other hypertension-related disorders.
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