The Succinate Receptor GPR91 Is Involved in Pressure Overload-Induced Ventricular Hypertrophy

Pulmonary arterial hypertension is characterized by increased pressure overload that leads to right ventricular hypertrophy (RVH). GPR91 is a formerly orphan G-protein-coupled receptor (GPCR) that has been characterized as a receptor for succinate; however, its role in RVH remains unknown. We invest...

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Veröffentlicht in:PloS one 2016-01, Vol.11 (1), p.e0147597-e0147597
Hauptverfasser: Yang, Lei, Yu, Di, Mo, Ran, Zhang, Jiru, Hua, Hu, Hu, Liang, Feng, Yu, Wang, Song, Zhang, Wei-Yan, Yin, Ning, Mo, Xu-Ming
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container_title PloS one
container_volume 11
creator Yang, Lei
Yu, Di
Mo, Ran
Zhang, Jiru
Hua, Hu
Hu, Liang
Feng, Yu
Wang, Song
Zhang, Wei-Yan
Yin, Ning
Mo, Xu-Ming
description Pulmonary arterial hypertension is characterized by increased pressure overload that leads to right ventricular hypertrophy (RVH). GPR91 is a formerly orphan G-protein-coupled receptor (GPCR) that has been characterized as a receptor for succinate; however, its role in RVH remains unknown. We investigated the role of succinate-GPR91 signaling in a pulmonary arterial banding (PAB) model of RVH induced by pressure overload in SD rats. GPR91 was shown to be located in cardiomyocytes. In the sham and PAB rats, succinate treatment further aggravated RVH, up-regulated RVH-associated genes and increased p-Akt/t-Akt levels in vivo. In vitro, succinate treatment up-regulated the levels of the hypertrophic gene marker anp and p-Akt/t-Akt in cardiomyocytes. All these effects were inhibited by the PI3K antagonist wortmannin both in vivo and in vitro. Finally, we noted that the GPR91-PI3K/Akt axis was also up-regulated compared to that in human RVH. Our findings indicate that succinate-GPR91 signaling may be involved in RVH via PI3K/Akt signaling in vivo and in vitro. Therefore, GPR91 may be a novel therapeutic target for treating pressure overload-induced RVH.
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GPR91 is a formerly orphan G-protein-coupled receptor (GPCR) that has been characterized as a receptor for succinate; however, its role in RVH remains unknown. We investigated the role of succinate-GPR91 signaling in a pulmonary arterial banding (PAB) model of RVH induced by pressure overload in SD rats. GPR91 was shown to be located in cardiomyocytes. In the sham and PAB rats, succinate treatment further aggravated RVH, up-regulated RVH-associated genes and increased p-Akt/t-Akt levels in vivo. In vitro, succinate treatment up-regulated the levels of the hypertrophic gene marker anp and p-Akt/t-Akt in cardiomyocytes. All these effects were inhibited by the PI3K antagonist wortmannin both in vivo and in vitro. Finally, we noted that the GPR91-PI3K/Akt axis was also up-regulated compared to that in human RVH. Our findings indicate that succinate-GPR91 signaling may be involved in RVH via PI3K/Akt signaling in vivo and in vitro. Therefore, GPR91 may be a novel therapeutic target for treating pressure overload-induced RVH.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0147597</identifier><identifier>PMID: 26824665</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>1-Phosphatidylinositol 3-kinase ; AKT protein ; Androstadienes - pharmacology ; Anesthesiology ; Animals ; Atrial Natriuretic Factor - genetics ; Atrial Natriuretic Factor - metabolism ; Banding ; Biology and Life Sciences ; Cancer ; Cardiomyocytes ; Cell receptors ; Children &amp; youth ; Diabetes ; Diagnosis ; G protein-coupled receptors ; Gene Expression Regulation ; Genetic aspects ; Genetic markers ; Heart ; Heart failure ; Heart hypertrophy ; Heart surgery ; Heart Ventricles - metabolism ; Heart Ventricles - pathology ; Heart Ventricles - physiopathology ; Hospitals ; Humans ; Hypertension ; Hypertension, Pulmonary - genetics ; Hypertension, Pulmonary - metabolism ; Hypertension, Pulmonary - pathology ; Hypertension, Pulmonary - physiopathology ; Hypertrophy ; Hypertrophy, Right Ventricular - genetics ; Hypertrophy, Right Ventricular - metabolism ; Hypertrophy, Right Ventricular - pathology ; Hypertrophy, Right Ventricular - physiopathology ; Kinases ; Medicine and Health Sciences ; Metabolism ; Metabolites ; Myocytes, Cardiac - cytology ; Myocytes, Cardiac - drug effects ; Myocytes, Cardiac - metabolism ; Phosphatidylinositol 3-Kinases - antagonists &amp; inhibitors ; Phosphatidylinositol 3-Kinases - genetics ; Phosphatidylinositol 3-Kinases - metabolism ; Phosphorylation ; Physiological aspects ; Proteins ; Proto-Oncogene Proteins c-akt - genetics ; Proto-Oncogene Proteins c-akt - metabolism ; Pulmonary arteries ; Pulmonary Artery - metabolism ; Pulmonary Artery - pathology ; Pulmonary Artery - surgery ; Pulmonary hypertension ; Rats ; Receptors, G-Protein-Coupled - antagonists &amp; inhibitors ; Receptors, G-Protein-Coupled - genetics ; Receptors, G-Protein-Coupled - metabolism ; RNA, Small Interfering - genetics ; RNA, Small Interfering - metabolism ; Rodents ; Signal Transduction ; Signaling ; Stroke Volume ; Succinic Acid - metabolism ; Succinic Acid - pharmacology ; Ventricle ; Wortmannin</subject><ispartof>PloS one, 2016-01, Vol.11 (1), p.e0147597-e0147597</ispartof><rights>COPYRIGHT 2016 Public Library of Science</rights><rights>2016 Yang et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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GPR91 is a formerly orphan G-protein-coupled receptor (GPCR) that has been characterized as a receptor for succinate; however, its role in RVH remains unknown. We investigated the role of succinate-GPR91 signaling in a pulmonary arterial banding (PAB) model of RVH induced by pressure overload in SD rats. GPR91 was shown to be located in cardiomyocytes. In the sham and PAB rats, succinate treatment further aggravated RVH, up-regulated RVH-associated genes and increased p-Akt/t-Akt levels in vivo. In vitro, succinate treatment up-regulated the levels of the hypertrophic gene marker anp and p-Akt/t-Akt in cardiomyocytes. All these effects were inhibited by the PI3K antagonist wortmannin both in vivo and in vitro. Finally, we noted that the GPR91-PI3K/Akt axis was also up-regulated compared to that in human RVH. Our findings indicate that succinate-GPR91 signaling may be involved in RVH via PI3K/Akt signaling in vivo and in vitro. 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GPR91 is a formerly orphan G-protein-coupled receptor (GPCR) that has been characterized as a receptor for succinate; however, its role in RVH remains unknown. We investigated the role of succinate-GPR91 signaling in a pulmonary arterial banding (PAB) model of RVH induced by pressure overload in SD rats. GPR91 was shown to be located in cardiomyocytes. In the sham and PAB rats, succinate treatment further aggravated RVH, up-regulated RVH-associated genes and increased p-Akt/t-Akt levels in vivo. In vitro, succinate treatment up-regulated the levels of the hypertrophic gene marker anp and p-Akt/t-Akt in cardiomyocytes. All these effects were inhibited by the PI3K antagonist wortmannin both in vivo and in vitro. Finally, we noted that the GPR91-PI3K/Akt axis was also up-regulated compared to that in human RVH. Our findings indicate that succinate-GPR91 signaling may be involved in RVH via PI3K/Akt signaling in vivo and in vitro. Therefore, GPR91 may be a novel therapeutic target for treating pressure overload-induced RVH.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>26824665</pmid><doi>10.1371/journal.pone.0147597</doi><oa>free_for_read</oa></addata></record>
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identifier ISSN: 1932-6203
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1932-6203
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subjects 1-Phosphatidylinositol 3-kinase
AKT protein
Androstadienes - pharmacology
Anesthesiology
Animals
Atrial Natriuretic Factor - genetics
Atrial Natriuretic Factor - metabolism
Banding
Biology and Life Sciences
Cancer
Cardiomyocytes
Cell receptors
Children & youth
Diabetes
Diagnosis
G protein-coupled receptors
Gene Expression Regulation
Genetic aspects
Genetic markers
Heart
Heart failure
Heart hypertrophy
Heart surgery
Heart Ventricles - metabolism
Heart Ventricles - pathology
Heart Ventricles - physiopathology
Hospitals
Humans
Hypertension
Hypertension, Pulmonary - genetics
Hypertension, Pulmonary - metabolism
Hypertension, Pulmonary - pathology
Hypertension, Pulmonary - physiopathology
Hypertrophy
Hypertrophy, Right Ventricular - genetics
Hypertrophy, Right Ventricular - metabolism
Hypertrophy, Right Ventricular - pathology
Hypertrophy, Right Ventricular - physiopathology
Kinases
Medicine and Health Sciences
Metabolism
Metabolites
Myocytes, Cardiac - cytology
Myocytes, Cardiac - drug effects
Myocytes, Cardiac - metabolism
Phosphatidylinositol 3-Kinases - antagonists & inhibitors
Phosphatidylinositol 3-Kinases - genetics
Phosphatidylinositol 3-Kinases - metabolism
Phosphorylation
Physiological aspects
Proteins
Proto-Oncogene Proteins c-akt - genetics
Proto-Oncogene Proteins c-akt - metabolism
Pulmonary arteries
Pulmonary Artery - metabolism
Pulmonary Artery - pathology
Pulmonary Artery - surgery
Pulmonary hypertension
Rats
Receptors, G-Protein-Coupled - antagonists & inhibitors
Receptors, G-Protein-Coupled - genetics
Receptors, G-Protein-Coupled - metabolism
RNA, Small Interfering - genetics
RNA, Small Interfering - metabolism
Rodents
Signal Transduction
Signaling
Stroke Volume
Succinic Acid - metabolism
Succinic Acid - pharmacology
Ventricle
Wortmannin
title The Succinate Receptor GPR91 Is Involved in Pressure Overload-Induced Ventricular Hypertrophy
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