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An YM, Li YJ, Zhang CL, Cong X, Gao YS, Wu LL, Dou D. Decreased PKG transcription mediated by PI3K/Akt/FoxO1 pathway is involved in the development of nitroglycerin tolerance. Biochem Biophys Res Commun 2018; 508:1195-1201. [PMID: 30554658 DOI: 10.1016/j.bbrc.2018.12.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 12/10/2018] [Indexed: 12/27/2022]
Abstract
Phosphoinositide 3-kinase (PI3K)/Akt plays a pivotal role in the vascular response. The present study is to determine whether PI3K/Akt pathway in vascular smooth muscle cells is involved in nitroglycerin (NTG) tolerance and the underlying mechanism. Nitrate tolerance of porcine coronary arteries in vitro was induced by incubation of NTG (10-5 M) for 24 h. Nitrate tolerance in vivo was obtained by subcutaneous injection of mice with NTG (20 mg kg-1, tid, 3 days) and the aortas were used. Protein levels of total and phosphorylated Akt, forkhead box protein O1 (FoxO1), and cGMP-dependent protein kinase (PKG) were determined by western blot analysis. Isometric vessel tension was recorded by organ chamber technique. PKG mRNA was determined by real-time PCR. The cellular translocation of FoxO1 was observed by immunofluorescence. Reactive oxygen species (ROS) level was measured by DHE staining. The vascular relaxation to NTG was significantly inhibited in in vivo and in vitro NTG tolerant arteries. Meanwhile, the protein level of phosphorylated Akt at Ser473 was increased in the tolerant arteries. The attenuated relaxation and the augmented Akt-p were ameliorated by LY294002, a specific inhibitor of PI3K. The protein and mRNA expression of PKG were significantly down-regulated in NTG tolerant arteries, which were reversed by LY294002. The level of phosphorylated FoxO1 at Ser256 and its translocation from the nucleus to the cytosol were both increased in NTG tolerance and were also inhibited by LY294002. ROS production was significantly increased in NTG tolerant arteries, which was not be affected by LY294002 but inhibited by N-acetyl-L-cysteine. In conclusion, the present study suggests that PI3K/Akt in vascular smooth muscle is involved in the development of NTG tolerance via inhibiting PKG transcription and the effect is mediated by FoxO1.
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Affiliation(s)
- Yuan-Ming An
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yan-Jing Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Cheng-Lin Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Xin Cong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yuan-Sheng Gao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Li-Ling Wu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Dou Dou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China.
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Zhang CL, Xie S, Qiao X, An YM, Zhang Y, Li L, Guo XB, Zhang FC, Wu LL. Plasma endothelin-1-related peptides as the prognostic biomarkers for heart failure: A PRISMA-compliant meta-analysis. Medicine (Baltimore) 2017; 96:e9342. [PMID: 29390406 PMCID: PMC5815818 DOI: 10.1097/md.0000000000009342] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Most studies reported that high plasma endothelin-1 (ET-1), big ET-1, and C-terminal proET-1 (CT-proET-1) were correlated with poor prognosis of heart failure (HF). However, available evidence remains controversial. To help solve the debate, we collected all the available studies and performed a meta-analysis. METHODS We searched the databases covering Embase, PubMed, Ovid, and Web of Science on June 28, 2017. The hazard ratio (HR) or risk ratio (RR) and its 95% confidence intervals (CIs) were collected and calculated by use of a random-effect model. Heterogeneity was assessed by Cochran's Q test, and publication bias was assessed by funnel plots with Egger's and Begg's linear regression test. RESULTS Thirty-two studies with 18,497 patients were included in the analysis. Results showed that circulating ET-1, big ET-1, and CT-proET-1 were positively correlated with high risk of adverse outcomes, with pooled RRs (95% CIs) of 2.22 (1.82-2.71, P < .001), 2.47 (1.93-3.17, P < .001), and 2.27 (1.57-3.29, P < .001), respectively. In the subgroup of death as primary outcome, the pooled RRs (95% CIs) were 2.13 (1.68-2.70, P < .001), 2.55 (1.82-3.57, P < .001), and 2.02 (1.39-2.92, P < .001) for ET-1, big ET-1, and CT-proET-1, respectively. No significant publication bias was observed in this study. CONCLUSION Our meta-analysis provided evidence that increased plasma levels of ET-1, big ET-1, and CT-proET-1 were associated with poor prognosis or mortality for HF populations.
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Affiliation(s)
- Cheng-Lin Zhang
- Department of Physiology and Pathophysiology, Key Laboratory of Molecular Cardiovascular Science, Beijing Key Laboratory of Cardiovascular Receptors Research, Ministry of Education
| | - Shang Xie
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology
| | - Xue Qiao
- Department of Physiology and Pathophysiology, Key Laboratory of Molecular Cardiovascular Science, Beijing Key Laboratory of Cardiovascular Receptors Research, Ministry of Education
| | - Yuan-Ming An
- Department of Physiology and Pathophysiology, Key Laboratory of Molecular Cardiovascular Science, Beijing Key Laboratory of Cardiovascular Receptors Research, Ministry of Education
| | - Yan Zhang
- Department of Physiology and Pathophysiology, Key Laboratory of Molecular Cardiovascular Science, Beijing Key Laboratory of Cardiovascular Receptors Research, Ministry of Education
| | - Li Li
- Department of Physiology and Pathophysiology, Key Laboratory of Molecular Cardiovascular Science, Beijing Key Laboratory of Cardiovascular Receptors Research, Ministry of Education
| | - Xiao-Bin Guo
- Department of Geriatrics, Peking University Third Hospital, Beijing, China
| | - Fu-Chun Zhang
- Department of Geriatrics, Peking University Third Hospital, Beijing, China
| | - Li-Ling Wu
- Department of Physiology and Pathophysiology, Key Laboratory of Molecular Cardiovascular Science, Beijing Key Laboratory of Cardiovascular Receptors Research, Ministry of Education
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An YM, Feng H, Zhang XZ, Cong X, Zhao Q, Wu LL, Dou D. Homocysteine ameliorates the endothelium-independent hypoxic vasoconstriction via the suppression of phosphatidylinositol 3-kinase/Akt pathway in porcine coronary arteries. Biochem Biophys Res Commun 2017; 486:178-183. [PMID: 28285136 DOI: 10.1016/j.bbrc.2017.03.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 03/07/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Endothelium-independent coronary vasoconstriction induced by continuous hypoxia contributes to the development of ischemic heart diseases. Acute elevation of homocysteine (Hcy) has a potent of vasodilation. The present study aims to investigate the role of Hcy in endothelium-independent hypoxic coronary vasoconstriction and its underlying mechanisms. METHODS AND RESULTS Vessel tension of isolated porcine coronary arteries was measured by organ chamber study and the protein expression were detected by western blot. A sustained contraction of porcine coronary artery was induced when exposed to prolonged hypoxia for more than 15 min, which was significantly reduced by Hcy in a dose-dependent manner but not affected by cysteine or N-acetyl-l-cysteine. Phosphorylated myosin light chain (MLC-p) at Ser19 was decreased when exposure to hypoxia for 15 min, and could be reversed by prolonged hypoxia for 30 and 60 min. The recovery of MLC-p at Ser19 by hypoxia for more than 30 min could be abolished by Hcy. The protein levels of phosphorylated Akt at Ser473 and phosphorylated P85 at Tyr508 were decreased by Hcy in normoxia, and were also reduced exposure to hypoxia for 15 min and then augmented by prolonged hypoxia for more than 30 min, which could be prevented by Hcy. The protein level of P110α was not affected by Hcy or prolonged hypoxia. CONCLUSIONS This study demonstrates that Hcy can ameliorate the endothelium-independent hypoxic coronary vasoconstriction, in which the inhibition of PI3K/Akt signaling pathway may be involved.
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Affiliation(s)
- Yuan-Ming An
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Han Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Xing-Zhong Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Xin Cong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Qian Zhao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Li-Ling Wu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Dou Dou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China.
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Feng H, Wang JY, Zheng M, Zhang CL, An YM, Li L, Wu LL. CTRP3 promotes energy production by inducing mitochondrial ROS and up-expression of PGC-1α in vascular smooth muscle cells. Exp Cell Res 2016; 341:177-86. [PMID: 26844631 DOI: 10.1016/j.yexcr.2016.02.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 11/25/2022]
Abstract
C1q/tumor necrosis factor-related protein-3 (CTRP3) is an adipokine with modulation effects on metabolism and inflammation. Adenosine triphosphate (ATP) exerts multiple biological effects in vascular smooth muscle cells (VSMCs) and energy imbalance is involved in vascular diseases. This study aimed to explore the effect of CTRP3 on energy production and its underlying mechanism in VSMCs. Our results indicated that exogenous CTRP3 increased ATP synthesis and the protein expression of oxidative phosphorylation (OXPHOS)-related molecules, including peroxisome proliferator-activated receptor-γ coactivator (PGC)-1α, sirtuin-3 (SIRT3), complex I, II, III, and V in cultured VSMCs. Depletion of endogenous CTRP3 by small interfering RNA (siRNA) reduced ATP synthesis and the expression of those molecules. PGC-1α knockdown abrogated CTRP3-induced ATP production and OXPHOS-related protein expression. Furthermore, CTRP3 increased mitochondrial reactive oxygen species (ROS) production and mitochondrial membrane potential level. Pretreatment with N-acetyl-L-cysteine, a reactive oxygen species scavenger, and cyanidem-chlorophenylhydrazone, an uncoupler of OXPHOS, suppressed CTRP3-induced ROS production, PGC-1α expression and ATP synthesis. In conclusion, CTRP3 modulates mitochondrial energy production through targets of ROS and PGC-1α in VSMCs.
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Affiliation(s)
- Han Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Jin-Yu Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Ming Zheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Cheng-Lin Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Yuan-Ming An
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Li Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China.
| | - Li-Ling Wu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China.
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