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Lin WT, Jiang YC, Mei YL, Chen YH, Zheng ZZ, Han X, Wu GJ, Huang WJ, Ye BZ, Liang G. Endothelial deubiquinatase YOD1 mediates Ang II-induced vascular endothelial-mesenchymal transition and remodeling by regulating β-catenin. Acta Pharmacol Sin 2024; 45:1618-1631. [PMID: 38641745 PMCID: PMC11272938 DOI: 10.1038/s41401-024-01278-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/25/2024] [Indexed: 04/21/2024] Open
Abstract
Hypertension is a prominent contributor to vascular injury. Deubiquinatase has been implicated in the regulation of hypertension-induced vascular injury. In the present study we investigated the specific role of deubiquinatase YOD1 in hypertension-induced vascular injury. Vascular endothelial endothelial-mesenchymal transition (EndMT) was induced in male WT and YOD1-/- mice by administration of Ang II (1 μg/kg per minute) via osmotic pump for four weeks. We showed a significantly increased expression of YOD1 in mouse vascular endothelial cells upon Ang II stimulation. Knockout of YOD1 resulted in a notable reduction in EndMT in vascular endothelial cells of Ang II-treated mouse; a similar result was observed in Ang II-treated human umbilical vein endothelial cells (HUVECs). We then conducted LC-MS/MS and co-immunoprecipitation (Co-IP) analyses to verify the binding between YOD1 and EndMT-related proteins, and found that YOD1 directly bound to β-catenin in HUVECs via its ovarian tumor-associated protease (OTU) domain, and histidine at 262 performing deubiquitination to maintain β-catenin protein stability by removing the K48 ubiquitin chain from β-catenin and preventing its proteasome degradation, thereby promoting EndMT of vascular endothelial cells. Oral administration of β-catenin inhibitor MSAB (20 mg/kg, every other day for four weeks) eliminated the protective effect of YOD1 deletion on vascular endothelial injury. In conclusion, we demonstrate a new YOD1-β-catenin axis in regulating Ang II-induced vascular endothelial injury and reveal YOD1 as a deubiquitinating enzyme for β-catenin, suggesting that targeting YOD1 holds promise as a potential therapeutic strategy for treating β-catenin-mediated vascular diseases.
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Affiliation(s)
- Wan-Te Lin
- Department of Cardiology and the Key Laboratory of Cardiovascular Disease of Wenzhou, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yu-Cheng Jiang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yi-Lin Mei
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yang-Hao Chen
- Department of Cardiology and the Key Laboratory of Cardiovascular Disease of Wenzhou, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Zhao-Zheng Zheng
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xue Han
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Gao-Jun Wu
- Department of Cardiology and the Key Laboratory of Cardiovascular Disease of Wenzhou, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China
| | - Wei-Jian Huang
- Department of Cardiology and the Key Laboratory of Cardiovascular Disease of Wenzhou, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China.
| | - Bo-Zhi Ye
- Department of Cardiology and the Key Laboratory of Cardiovascular Disease of Wenzhou, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China.
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 325035, China.
| | - Guang Liang
- Department of Cardiology and the Key Laboratory of Cardiovascular Disease of Wenzhou, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China.
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China.
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 325035, China.
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2
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Duan H, Zhang Q, Liu J, Li R, Wang D, Peng W, Wu C. Suppression of apoptosis in vascular endothelial cell, the promising way for natural medicines to treat atherosclerosis. Pharmacol Res 2021; 168:105599. [PMID: 33838291 DOI: 10.1016/j.phrs.2021.105599] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 03/09/2021] [Accepted: 04/02/2021] [Indexed: 12/16/2022]
Abstract
Atherosclerosis, a chronic multifactorial disease, is closely related to the development of cardiovascular diseases and is one of the predominant causes of death worldwide. Normal vascular endothelial cells play an important role in maintaining vascular homeostasis and inhibiting atherosclerosis by regulating vascular tension, preventing thrombosis and regulating inflammation. Currently, accumulating evidence has revealed that endothelial cell apoptosis is the first step of atherosclerosis. Excess apoptosis of endothelial cells induced by risk factors for atherosclerosis is a preliminary event in atherosclerosis development and might be a target for preventing and treating atherosclerosis. Interestingly, accumulating evidence shows that natural medicines have great potential to treat atherosclerosis by inhibiting endothelial cell apoptosis. Therefore, this paper reviewed current studies on the inhibitory effect of natural medicines on endothelial cell apoptosis and summarized the risk factors that may induce endothelial cell apoptosis, including oxidized low-density lipoprotein (ox-LDL), reactive oxygen species (ROS), angiotensin II (Ang II), tumor necrosis factor-α (TNF-α), homocysteine (Hcy) and lipopolysaccharide (LPS). We expect this review to highlight the importance of natural medicines, including extracts and monomers, in the treatment of atherosclerosis by inhibiting endothelial cell apoptosis and provide a foundation for the development of potential antiatherosclerotic drugs from natural medicines.
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Affiliation(s)
- Huxinyue Duan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu 611137, PR China
| | - Qing Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu 611137, PR China
| | - Jia Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu 611137, PR China
| | - Ruolan Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu 611137, PR China
| | - Dan Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu 611137, PR China
| | - Wei Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu 611137, PR China.
| | - Chunjie Wu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Chengdu 611137, PR China.
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Non-alcoholic fatty liver disease: a metabolic burden promoting atherosclerosis. Clin Sci (Lond) 2021; 134:1775-1799. [PMID: 32677680 DOI: 10.1042/cs20200446] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/06/2020] [Accepted: 06/29/2020] [Indexed: 02/07/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become the fastest growing chronic liver disease, with a prevalence of up to 25% worldwide. Individuals with NAFLD have a high risk of disease progression to cirrhosis, hepatocellular carcinoma (HCC), and liver failure. With the exception of intrahepatic burden, cardiovascular disease (CVD) and especially atherosclerosis (AS) are common complications of NAFLD. Furthermore, CVD is a major cause of death in NAFLD patients. Additionally, AS is a metabolic disorder highly associated with NAFLD, and individual NAFLD pathologies can greatly increase the risk of AS. It is increasingly clear that AS-associated endothelial cell damage, inflammatory cell activation, and smooth muscle cell proliferation are extensively impacted by NAFLD-induced systematic dyslipidemia, inflammation, oxidative stress, the production of hepatokines, and coagulations. In clinical trials, drug candidates for NAFLD management have displayed promising effects for the treatment of AS. In this review, we summarize the key molecular events and cellular factors contributing to the metabolic burden induced by NAFLD on AS, and discuss therapeutic strategies for the improvement of AS in individuals with NAFLD.
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Gao L, Liu Y, Wang Y, Chen W, Yang K, Li J, Lv B, Zhang X, Chi J, Liu N, Yin X, Zhang X. H2 relaxin ameliorates angiotensin II-induced endothelial dysfunction through inhibition of excessive mitochondrial fission. Biochem Biophys Res Commun 2019; 512:799-805. [PMID: 30928096 DOI: 10.1016/j.bbrc.2019.03.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 03/18/2019] [Indexed: 11/16/2022]
Abstract
The physiological function of endothelial cells plays an important role in maintaining normal cardiovascular function. Endothelial dysfunction induced by AngII (angiotensin II) is the pathological mechanism of occurrence and development of cardiovascular diseases. Human recombinant relaxin-2 (H2 relaxin), which has protective effect on cardiovascular functions, ameliorates damage to endothelial cells induced by angiotensin II (AngII) treatment. However, the exact mechanisms remain unclear. In this study, we researched the mechanisms of H2 relaxin inhibiting AngII-induced endothelial dysfunction from the protective effect of H2 relaxin on endothelial function though inhibiting excessive mitochondrial fission. Here, we found that H2 relaxin increased eNOS, SOD1 expression, inhibited excessive mitochondrial fission and decreased ROS level in HUVECs treated with AngII. However, overexpression of fission protein 1 (Fis1) prevented H2 relaxin from protecting against AngII-induced low eNOS, SOD1 expression, excessive mitochondrial fission and increased ROS level in HUVECs. Our study indicated that excessive mitochondrial fission could be a target for H2 relaxin to treat endothelial dysfunction in angiocardiopathy.
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Affiliation(s)
- Lei Gao
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Yue Liu
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Ying Wang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Wenjia Chen
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Kelaier Yang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Jiawen Li
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Bo Lv
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Xin Zhang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Jinyu Chi
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Na Liu
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China
| | - Xinhua Yin
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China.
| | - Xiaohui Zhang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang Province, China.
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Tsai HJ, Liao MH, Shih CC, Ka SM, Tsao CM, Wu CC. Angiotensin-(1-7) attenuates organ injury and mortality in rats with polymicrobial sepsis. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2018; 22:269. [PMID: 30367644 PMCID: PMC6204017 DOI: 10.1186/s13054-018-2210-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 09/25/2018] [Indexed: 11/14/2022]
Abstract
Background Sepsis and related multiple organ dysfunction result in high morbidity and mortality. Angiotensin (Ang)-(1–7), a biologically active peptide, has various opposing effects of Ang II. Because the effect of Ang-(1–7) on sepsis is unknown, in this study we aimed to determine the impact of Ang-(1–7) on pathophysiologic changes in a clinically relevant model of polymicrobial sepsis induced by cecal ligation and puncture (CLP). Methods Sepsis was induced by CLP in rats under anesthesia. Rats were randomized to one of the following five groups: (1) sham-operated group, (2) Ang-(1–7) (1 mg/kg intravenously infused for 1 h) at 3 h and 6 h after sham operation, (3) CLP, (4) Ang-(1–7) at 3 h after CLP, and (5) Ang-(1–7) at 3 h and 6 h after CLP. Rats were observed for 24 h after CLP surgery and then killed for subsequent histological examination. Results Ang-(1–7) significantly improved the survival of septic rats (83.3% vs. 36.4% at 24 h following CLP; p = 0.009). Ang-(1–7) attenuated the CLP-induced decreased arterial pressure and organ dysfunction, indicated by diminished biochemical variables and fewer histological changes. Ang-(1–7) significantly reduced the level of plasma interleukin-6 and pulmonary superoxide production (p < 0.05). Moreover, caspase-3 and cytoplasmic IκB expression in liver was significantly lower in the Ang-(1–7)-treated CLP rats (p < 0.05). Conclusions In this clinically relevant model of sepsis, Ang-(1–7) ameliorates CLP-induced organ dysfunction and improves survival, possibly through suppressing the inflammatory response, oxidative stress, and apoptosis, suggesting that Ang-(1–7) could be a potential novel therapeutic approach to treatment of peritonitis and polymicrobial sepsis.
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Affiliation(s)
- Hsin-Jung Tsai
- Department of Anesthesiology, Taipei Veterans General Hospital and National Yang-Ming University, No. 201, Sec. 2, Shipai Road, Beitou District, Taipei, 11217, Taiwan, Republic of China
| | - Mei-Hui Liao
- Department of Pharmacology, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Chih-Chin Shih
- Department of Pharmacology, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Shuk-Man Ka
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Cheng-Ming Tsao
- Department of Anesthesiology, Taipei Veterans General Hospital and National Yang-Ming University, No. 201, Sec. 2, Shipai Road, Beitou District, Taipei, 11217, Taiwan, Republic of China. .,Department of Anesthesiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China.
| | - Chin-Chen Wu
- Department of Pharmacology, National Defense Medical Center, Taipei, Taiwan, Republic of China
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6
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Eid RA, El-Kott AF, Zaki MSA, Eldeen MA, Al-Hashem FH, Alkhateeb MA, Alassiri M, Aldera H. Acylated ghrelin protects aorta damage post-MI via activation of eNOS and inhibition of angiotensin-converting enzyme induced activation of NAD(P)H-dependent oxidase. Ultrastruct Pathol 2018; 42:416-429. [PMID: 30300044 DOI: 10.1080/01913123.2018.1526242] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
NAD(P)H dependent oxidase derived-reactive oxygen species (ROS) due to activation of the renin-angiotensin-aldosterone system (RAAS) in blood vessels postmyocardial infarction MI or during the HF leads to endothelium dysfunction and enhanced apoptosis. Acylated ghrelin (AG) is a well-reported cardioprotective and antiapoptotic agent for the heart. AG receptors are widely distributed in most of blood vessels, suggesting a role in the regulation of endothelial function and survival. This study investigated if AG can protect aorta of rats' postmyocardial infarction (MI)-induced damage and endothelial dysfunction. Adult male rats were divided into four groups of (1) Sham, (2) Sham + AG, (3) MI, and (4) MI + AG. Vehicle (normal saline) or AG (100 µ/kg) was administered to rats for 21 consecutive days, after which, numerous biochemical markers were detected by blot. Both histological and electron microscope studies were carried on aortic samples from MI-induced rats. AG increased protein levels of both total and phosphorylated forms of endothelial nitric oxide synthase (eNOS and p-eNOS, respectively). Only in MI-treated rats, AG prevented the decreases in the levels of reduced glutathione (GSH) and superoxide dismutase (SOD) and lowered levels of malondialdehyde (MDA) and glutathione disulfide (GSSG). Concomitantly, it lowered the increased protein levels of angiotensin-converting enzyme (ACE), p22phox and cleaved caspase-3 and prevented the aorta histological and ultrustructural abnormalities induced by MI.
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Affiliation(s)
- Refaat A Eid
- a Department of Pathology, College of Medicine , King Khalid University , Abha , Saudi Arabia
| | - Attalla Farag El-Kott
- b Department of Biology, College of Science , King Khalid University , Abha , Saudi Arabia.,c Department of Zoology, Faculty of Science , Damanhour University , Damanhour , Egypt
| | - Mohamed Samir Ahmed Zaki
- d Department of Anatomy, College of Medicine , King Khalid University , Abha , Saudi Arabia.,e Department of Histology, Faculty of Medicine , Zagazig University , Zagazig , Egypt
| | - Muhammad Alaa Eldeen
- f Biology Department, Physiology Section, Faculty of Science , Zagazig University , Zagazig , Egypt
| | - Fahaid H Al-Hashem
- g Department of Physiology, College of Medicine , King Khalid University , Abha , Saudi Arabia
| | - Mahmoud A Alkhateeb
- h Department of basic medical Sciences, College of Medicine , King Saud bin Abdulaziz University for Health Sciences , Riyadh , Saudi Arabia
| | - Mohammed Alassiri
- h Department of basic medical Sciences, College of Medicine , King Saud bin Abdulaziz University for Health Sciences , Riyadh , Saudi Arabia
| | - Hussain Aldera
- h Department of basic medical Sciences, College of Medicine , King Saud bin Abdulaziz University for Health Sciences , Riyadh , Saudi Arabia
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7
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Chang Y, Li Y, Ye N, Guo X, Li Z, Sun G, Sun Y. Atorvastatin inhibits the apoptosis of human umbilical vein endothelial cells induced by angiotensin II via the lysosomal-mitochondrial axis. Apoptosis 2018; 21:977-96. [PMID: 27394920 DOI: 10.1007/s10495-016-1271-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This study was aimed to evaluate lysosomes-mitochondria cross-signaling in angiotensin II (Ang II)-induced apoptosis of human umbilical vein endothelial cells (HUVECs) and whether atorvastatin played a protective role via lysosomal-mitochondrial axis. Apoptosis was detected by flow cytometry, Hoechst 33342 and AO/EB assay. The temporal relationship of lysosomal and mitochondrial permeabilization was established. Activity of Cathepsin D (CTSD) was suppressed by pharmacological and genetic approaches. Proteins production were measured by western blotting. Our study showed that Ang II could induce the apoptosis of HUVECs in a dose-depended and time-depended manner. Exposure to 1 μM Ang II for 24 h resulted in mitochondrial depolarization, cytochrome c release, and increased ROS production. Lysosomal permeabilization and CTSD redistribution into the cytoplasm occurred several hours prior to mitochondrial dysfunction. These effects were all suppressed by atorvastatin. Either pharmacological or genetic inhibition of CTSD preserved mitochondrial function and decreased apoptosis in HUVECs. Most importantly, we found that the protective effect of atorvastatin was significantly greater than pharmacological or genetic inhibition of CTSD. Finally, overexpression of CTSD without exposure to Ang II had no effect on mitochondrial function and apoptosis. Our data strongly suggested that Ang II induced apoptosis through the lysosomal-mitochondrial axis in HUVECs. Furthermore, atorvastatin played an important role in the regulation of lysosomes and mitochondria stability, resulting in an antagonistic role against Ang II on HUVECs.
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Affiliation(s)
- Ye Chang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, People's Republic of China
| | - Yuan Li
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, People's Republic of China
| | - Ning Ye
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, People's Republic of China
| | - Xiaofan Guo
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, People's Republic of China
| | - Zhao Li
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, People's Republic of China
| | - Guozhe Sun
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, People's Republic of China
| | - Yingxian Sun
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, People's Republic of China.
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8
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Chen J, Zhang W, Xu Q, Zhang J, Chen W, Xu Z, Li C, Wang Z, Zhang Y, Zhen Y, Feng J, Chen J, Chen J. Ang-(1-7) protects HUVECs from high glucose-induced injury and inflammation via inhibition of the JAK2/STAT3 pathway. Int J Mol Med 2018; 41:2865-2878. [PMID: 29484371 DOI: 10.3892/ijmm.2018.3507] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 01/23/2018] [Indexed: 11/06/2022] Open
Abstract
Angiotensin (Ang)‑1‑7, which is catalyzed by angiotensin‑converting enzyme 2 (ACE2) from angiotensin‑II (Ang‑II), exerts multiple biological and pharmacological effects, including cardioprotective effects and endothelial protection. The Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) pathway has been demonstrated to be involved in diabetes‑associated cardiovascular complications. The present study hypothesized that Ang‑(1‑7) protects against high glucose (HG)‑induced endothelial cell injury and inflammation by inhibiting the JAK2/STAT3 pathway in human umbilical vein endothelial cells (HUVECs). HUVECs were treated with 40 mmol/l glucose (HG) for 24 h to establish a model of HG‑induced endothelial cell injury and inflammation. Protein expression levels of p‑JAK2, t‑JAK2, p‑STAT3, t‑STAT3, NOX‑4, eNOS and cleaved caspase‑3 were tested by western blotting. CCK‑8 assay was performed to assess cell viability of HUVECs. Apoptotic cell death was analyzed by Hoechst 33258 staining. Mitochondrial membrane potential (MMP) was obtained using JC‑1. Superoxide dismutase (SOD) activity was tested by SOD assay kit. Interleukin (IL)‑1β, IL‑10, IL‑12 and TNF‑α levels in culture media were tested by ELISA. The findings demonstrated that exposure of HUVECs to HG for 24 h induced injury and inflammation. This injury and inflammation were significantly ameliorated by pre‑treatment of cells with either Ang‑(1‑7) or AG490, an inhibitor of the JAK2/STAT3 pathway, prior to exposure of the cells to HG. Exposure of the cells to HG also increased the phosphorylation of JAK2/STAT3 (p‑JAK2 and p‑STAT3). Increased activation of the JAK2/STAT3 pathway was attenuated by pre‑treatment with Ang‑(1‑7). To the best of our knowledge, the findings from the present study provided the first evidence that Ang‑(1‑7) protects against HG‑induced injury and inflammation by inhibiting activation of the JAK2/STAT3 pathway in HUVECs.
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Affiliation(s)
- Jianfang Chen
- Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Wei Zhang
- Department of Cardiology, Huangpu Division of The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510700, P.R. China
| | - Qing Xu
- Department of Cardiology, Huangpu Division of The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510700, P.R. China
| | - Jihua Zhang
- Department of Endocrinology, Shanxian Central Hospital of Shandong Province, Shanxian, Shangdong 274300, P.R. China
| | - Wei Chen
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Zhengrong Xu
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Chaosheng Li
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Zhenhua Wang
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Yao Zhang
- Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Yulan Zhen
- Department of Oncology, The Third People's Hospital of Dongguan City, Dongguan, Guangdong 523326, P.R. China
| | - Jianqiang Feng
- Department of Physiology, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Jun Chen
- Department of Cardiology, The People's Hospital of Baoan Shenzhen, Shenzhen, Guangdong 518100, P.R. China
| | - Jingfu Chen
- Department of Cardiovascular Medicine and Dongguan Cardiovascular Institute, The Third People's Hospital of Dongguan City, Dongguan, Guangdong 523326, P.R. China
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9
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Xiao HL, Zhao LX, Yang J, Tong N, An L, Liu QT, Xie MR, Li CS. Association between ACE2/ACE balance and pneumocyte apoptosis in a porcine model of acute pulmonary thromboembolism with cardiac arrest. Mol Med Rep 2018; 17:4221-4228. [PMID: 29328448 PMCID: PMC5802193 DOI: 10.3892/mmr.2018.8426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Accepted: 09/01/2017] [Indexed: 12/16/2022] Open
Abstract
Acute pulmonary embolism (APE) is frequently reported in patients with cardiac arrest (CA) in emergency care. Pneumocyte apoptosis is commonly observed in the lungs following an APE. An important pathological mechanism evoking apoptosis during a lipopolysaccharide-induced acute lung injury is the angiotensin-converting enzyme 2 (ACE2)/ACE imbalance. The present study uses a porcine model to examine the anti-apoptotic effects of captopril on APE-CA and the return of spontaneous circulation (ROSC). Pigs were randomly assigned into four groups: Control, APE-CA, ROSC-saline, and ROSC-captopril. Surviving pigs were euthanized at 6 h and lungs were isolated for analysis using several biochemical assays. Compared with the control group, the ACE2/ACE ratio was lower in the APE-CA and ROSC pigs. In addition, APE-CA pigs had higher Bcl-2-associated X protein (Bax) and cleaved caspase-3 levels, and lower B-cell lymphoma-2 (Bcl-2) level compared to control pigs. Captopril treatment reduced lung apoptosis, as demonstrated by lower TUNEL-positive cells, higher Bcl-2, and lower cleaved caspase-3 protein levels in the lung. Notably, the ACE2/ACE ratio was positively correlated with Bcl-2 protein levels and Bcl-2/Bax ratio. In conclusion, captopril has a protective effect against lung apoptosis following ROSC and that maintaining the balance of the ACE2/ACE axis is important for inhibiting pulmonary apoptosis during APE.
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Affiliation(s)
- Hong-Li Xiao
- Department of Emergency Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Lian-Xing Zhao
- Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Jun Yang
- Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Nan Tong
- Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Le An
- Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Qi-Tong Liu
- Department of Radiology, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Miao-Rong Xie
- Department of Emergency Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Chun-Sheng Li
- Department of Emergency Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
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10
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MicroRNA-384-mediated Herpud1 upregulation promotes angiotensin II-induced endothelial cell apoptosis. Biochem Biophys Res Commun 2017; 488:453-460. [PMID: 28483519 DOI: 10.1016/j.bbrc.2017.05.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/05/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND Angiotensin II (Ang II)-induced damage to endothelial cells (ECs) plays a crucial role in the pathogenesis of atherosclerosis. This study aimed to investigate the role of microRNA-384 (miR-384) in endothelial cell apoptosis. METHODS The expression of five various miRNAs in Ang II-treated human umbilical vein endothelial cells (HUVECs) were detected by qPCR. The Ang II-induced apoptosis of HUVECs was determined by flow cytometry, TUNEL staining and western blot. Endoplasmic reticulum (ER) stress markers were detected by western blot analysis. The target gene of miR-384 was determined by bioinformatics analyses. qPCR, western blotting and immunofluorescence were performed to determine the expression level of homocysteine inducible ER protein with ubiquitin like domain 1 (Herpud1). RESULTS miR-384 expression level was significantly decreased in Ang II-treated HUVECs. Ang II-induced HUVEC apoptosis was accompanied by the occurrence of ER stress. A decreased rate of HUVEC apoptosis and a decreased rate of ER stress were observed following restoration of miR-384 expression. Herpud1 expression level was increased in HUVECs treated with Ang II, and miR-384 mimics effectively inhibited Herpud1 expression. Mechanistically, miR-384 directly targets the 3'-untranslated region of Herpud1. Furthermore, effects of miR-384 on HUVECs apoptosis and ER stress were at least partly reversed by knockdown of Herpud1 expression. CONCLUSION The results of the present study collectively indicated that miR-384 expression level was downregulated in Ang II-treated HUVECs and miR-384 overexpression protected HUVECs against Ang II-induced apoptosis by negatively regulating Herpud1. These findings point towards new strategies by which apoptosis of ECs can be suppressed.
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Márquez-Miranda V, Abrigo J, Rivera JC, Araya-Durán I, Aravena J, Simon F, Pacheco N, González-Nilo FD, Cabello-Verrugio C. The complex of PAMAM-OH dendrimer with Angiotensin (1-7) prevented the disuse-induced skeletal muscle atrophy in mice. Int J Nanomedicine 2017; 12:1985-1999. [PMID: 28331320 PMCID: PMC5357082 DOI: 10.2147/ijn.s125521] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Angiotensin (1–7) (Ang-(1–7)) is a bioactive heptapeptide with a short half-life and has beneficial effects in several tissues – among them, skeletal muscle – by preventing muscle atrophy. Dendrimers are promising vehicles for the protection and transport of numerous bioactive molecules. This work explored the use of a neutral, non-cytotoxic hydroxyl-terminated poly(amidoamine) (PAMAM-OH) dendrimer as an Ang-(1–7) carrier. Bioinformatics analysis showed that the Ang-(1–7)-binding capacity of the dendrimer presented a 2:1 molar ratio. Molecular dynamics simulation analysis revealed the capacity of neutral PAMAM-OH to protect Ang-(1–7) and form stable complexes. The peptide coverage ability of the dendrimer was between ~50% and 65%. Furthermore, an electrophoretic mobility shift assay demonstrated that neutral PAMAM-OH effectively bonded peptides. Experimental results showed that the Ang-(1–7)/PAMAM-OH complex, but not Ang-(1–7) alone, had an anti-atrophic effect when administered intraperitoneally, as evaluated by muscle strength, fiber diameter, myofibrillar protein levels, and atrogin-1 and MuRF-1 expressions. The results of the Ang-(1–7)/PAMAM-OH complex being intraperitoneally injected were similar to the results obtained when Ang-(1–7) was systemically administered through mini-osmotic pumps. Together, the results suggest that Ang-(1–7) can be protected for PAMAM-OH when this complex is intraperitoneally injected. Therefore, the Ang-(1–7)/PAMAM-OH complex is an efficient delivery method for Ang-(1–7), since it improves the anti-atrophic activity of this peptide in skeletal muscle.
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Affiliation(s)
- Valeria Márquez-Miranda
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago; Fundación Fraunhofer Chile Research, Las Condes
| | - Johanna Abrigo
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Juan Carlos Rivera
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Ingrid Araya-Durán
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago
| | - Javier Aravena
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Felipe Simon
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Nicolás Pacheco
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago
| | - Fernando Danilo González-Nilo
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago; Fundación Fraunhofer Chile Research, Las Condes; Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Claudio Cabello-Verrugio
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
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Wang HJ, Chen SF, Lo WY. Identification of Cofilin-1 Induces G0/G1 Arrest and Autophagy in Angiotensin-(1-7)-treated Human Aortic Endothelial Cells from iTRAQ Quantitative Proteomics. Sci Rep 2016; 6:35372. [PMID: 27748441 PMCID: PMC5066316 DOI: 10.1038/srep35372] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 08/08/2016] [Indexed: 01/07/2023] Open
Abstract
The angiotensin-converting enzyme 2/angiotensin-(1-7)/Mas axis is a pathway that acts against the detrimental effects of the renin-angiotensin system. However, the effects of angiotensin-(1-7) on endothelial protein expression and the related phenotypes are unclear. We performed a duplicate of iTRAQ quantitative proteomic analysis on human aortic endothelial cells (HAECs) treated with angiotensin-(1-7) for 6 hours. Cofilin-1 was identified as a highly abundant candidate with consistent >30% coverage and >1.2-fold overexpression in the angiotensin-(1-7)-treated group. Gene ontology analysis showed that the "regulation_of_mitosis" was significantly altered, and cell cycle analysis indicated that the 6-hour angiotensin-(1-7) treatment significantly induced G0/G1 arrest. Knockdown of the cofilin-1 (CFL1) gene suggested the G0/G1 phase arrest was mediated by the modulation of p27 and the p21/Cyclin/CDK complex by Cofilin-1. Interestingly, quiescent HAECs escaped G0/G1 arrest upon angiotensin-(1-7) treatment for 24 hours, and angiotensin-(1-7) induced autophagy by upregulating Beclin-1 and microtubule-associated protein 1 light chain 3b-II expression, which was also attenuated by A779 pre-treatment and CFL1 knockdown. After pre-treatment with 3-methyladenine (3MA), treatment with angiotensin-(1-7) for 24 h induced significant G0/G1 phase arrest and apoptosis, suggesting a pro-survival role of autophagy in this context. In conclusion, Cofilin-1 plays a dominant role in angiotensin-(1-7)-induced G0/G1 arrest and autophagy to maintain cellular homeostasis in HAECs.
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Affiliation(s)
- Huang-Joe Wang
- School of Medicine, China Medical University, No. 91, Hsueh-Shih Road, Taichung, Taiwan 40402, R.O.C.,Division of Cardiovascular Medicine, Department of Medicine, China Medical University Hospital, No. 2, Yude Road, Taichung Taiwan 40447, R.O.C.,Cardiovascular Research Laboratory, China Medical University Hospital, No. 2, Yude Road, Taichung Taiwan 40447, R.O.C
| | - Sung-Fang Chen
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Chow Rd, Taipei, Taiwan 11677, R.O.C
| | - Wan-Yu Lo
- Cardiovascular &Translational Medicine Laboratory, Department of Biotechnology, Hung Kuang University, No. 1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung Taiwan 43302, R.O.C
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Hu HJ, Jiang ZS, Zhou SH, Liu QM. Hydrogen sulfide suppresses angiotensin II-stimulated endothelin-1 generation and subsequent cytotoxicity-induced endoplasmic reticulum stress in endothelial cells via NF-κB. Mol Med Rep 2016; 14:4729-4740. [DOI: 10.3892/mmr.2016.5827] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 08/09/2016] [Indexed: 11/06/2022] Open
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14
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Du J, Leng J, Zhang L, Bai G, Yang D, Lin H, Qin J. Angiotensin II-Induced Apoptosis of Human Umbilical Vein Endothelial Cells was Inhibited by Blueberry Anthocyanin Through Bax- and Caspase 3-Dependent Pathways. Med Sci Monit 2016; 22:3223-8. [PMID: 27616275 PMCID: PMC5029175 DOI: 10.12659/msm.896916] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Background This study aimed to investigate the inhibitory effect of blueberry anthocyanin (BBA) on Angiotensin II (Ang II)-induced apoptosis of human umbilical vein endothelial cells (HUVECs), and its regulation mechanisms involving Bax and Caspase 3. Material/Methods HUVECs were first treated by different concentrations of Ang II (10−9, 10−8, 10−7, 10−6, 10−5, and 10−4 mol/L) and BBA (80, 40, 20, 10, 5, and 2.5 μg/ml). After 24 h and 48 h of treatment, MTT was performed to detect the viability of HUVECs. Then, HUVECs were randomly divided into the Ang II group (10−6 mol/L Ang II) and Ang II + BBA group (10−6 mol/L Ang II and 20 μg/ml BBA), and the apoptosis rate was detected by flow cytometry. Western blot analysis was performed to detect the expression of Bax and Caspase 3 in these 2 groups. During the whole process, HUVECs without any treatments served as the control group. Results The cell viability of HUVECs was significantly reduced by Ang II in a time- and concentration-dependent manner (P<0.05), while BBA significantly elevated the cell viability of HUVECs until a peak of 20.0 μg/ml. The apoptosis rate of HUVECs was significantly increased by Ang II (P<0.01) and reduced by the BBA intervention (P<0.05). Ang II significantly elevated the expression of Bax and Caspase 3 in HUVECs, but their expression was significantly inhibited by BBA. Conclusions BBA increased cell viability and reduced apoptosis rate of HUVECs induced by Ang II through Bax- and Caspase 3-dependent pathways.
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Affiliation(s)
- Jian Du
- Department of Geriatrics, The First Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Jiyan Leng
- Department of Geriatrics, The First Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Li Zhang
- Department of Geriatrics, The First Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Guangxin Bai
- , China Jilin Forest Industry Group, Changchun, Jilin, China (mainland)
| | - Di Yang
- , China Jilin Forest Industry Group, Changchun, Jilin, China (mainland)
| | - Huan Lin
- , China Jilin Forest Industry Group, Changchun, Jilin, China (mainland)
| | - Junjie Qin
- Department of Geriatrics, The First Hospital of Jilin University, Changchun, Jilin, China (mainland)
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Qaradakhi T, Apostolopoulos V, Zulli A. Angiotensin (1-7) and Alamandine: Similarities and differences. Pharmacol Res 2016; 111:820-826. [PMID: 27456244 DOI: 10.1016/j.phrs.2016.07.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 07/19/2016] [Accepted: 07/21/2016] [Indexed: 12/31/2022]
Abstract
A primary peptide of the renin angiotensin system (RAS), Angiotensin (Ang) II, is a vasoconstrictor and promotor of atherosclerosis. To counter this, the RAS also consists of peptides and receptors which increase nitric oxide release from the endothelium and decrease nicotinamide adenine dinucleotide phosphate oxidase-related superoxide production. Two peptides, Ang (1-7) and alamandine are vasodilators, by activating the nitric oxide pathway via different receptors in the endothelium. Thus, herein we focus on the similarities and differences between alamandine and Ang (1-7) and the counterbalancing hypothesis on Ang II during endothelial dysfunction and atherosclerosis.
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Affiliation(s)
- Tawar Qaradakhi
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Werribee Campus, 3030 Victoria, Australia.
| | - Vasso Apostolopoulos
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Werribee Campus, 3030 Victoria, Australia
| | - Anthony Zulli
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Werribee Campus, 3030 Victoria, Australia
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16
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Luo P, Zhang WF, Qian ZX, Xiao LF, Wang H, Zhu TT, Li F, Hu CP, Zhang Z. MiR-590-5p-meidated LOX-1 upregulation promotes Angiotensin II-induced endothelial cell apoptosis. Biochem Biophys Res Commun 2016; 471:402-8. [DOI: 10.1016/j.bbrc.2016.02.074] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 02/18/2016] [Indexed: 02/07/2023]
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17
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Shi MQ, Su FF, Xu X, Liu XT, Wang HT, Zhang W, Li X, Lian C, Zheng QS, Feng ZC. Cilostazol suppresses angiotensin II-induced apoptosis in endothelial cells. Mol Med Rep 2016; 13:2597-605. [PMID: 26862035 PMCID: PMC4768974 DOI: 10.3892/mmr.2016.4881] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 01/20/2016] [Indexed: 01/14/2023] Open
Abstract
Patients with essential hypertension undergo endothelial dysfunction, particularly in the conduit arteries. Cilostazol, a type III phosphodiesterase inhibitor, serves a role in the inhibition of platelet aggregation and it is widely used in the treatment of peripheral vascular diseases. Previous studies have suggested that cilostazol suppresses endothelial dysfunction; however, it remains unknown whether cilostazol protects the endothelial function in essential hypertension. The aim of the present study was to investigate whether, and how, cilostazol suppresses angiotensin II (angII)-induced endothelial dysfunction. Human umbilical vein endothelial cells (HUVECs) and Sprague Dawley rats were exposed to angII and treated with cilostazol. Endothelial cell apoptosis and function, nitric oxide and superoxide production, phosphorylation (p) of Akt, and caspase-3 protein expression levels were investigated. AngII exposure resulted in the apoptosis of endothelial cells in vitro and in vivo. In vitro, cilostazol significantly suppressed the angII-induced apoptosis of HUVECs; however, this effect was reduced in the presence of LY294002, a phosphoinositide 3 kinase (PI3K) inhibitor. Furthermore, cilostazol suppressed the angII-induced p-Akt downregulation and cleaved caspase-3 upregulation. These effects were also alleviated by LY294002. In vivo, cilostazol suppressed the angII-induced endothelial cell apoptosis and dysfunction. Cilostazol was also demonstrated to partially reduced the angII-induced increase in superoxide production. The results of the present study suggested that cilostazol suppresses endothelial apoptosis and dysfunction by modulating the PI3K/Akt pathway.
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Affiliation(s)
- Miao-Qian Shi
- Department of Pediatrics, Affiliated Bayi Children's Hospital, General Military Hospital of Beijing PLA, Beijing Key Laboratory of Pediatric Organ Failure, Beijing 100700, P.R. China
| | - Fei-Fei Su
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xuan Xu
- Department of Pediatrics, Affiliated Bayi Children's Hospital, General Military Hospital of Beijing PLA, Beijing Key Laboratory of Pediatric Organ Failure, Beijing 100700, P.R. China
| | - Xiong-Tao Liu
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Hong-Tao Wang
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wei Zhang
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xue Li
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Cheng Lian
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Qiang-Sun Zheng
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhi-Chun Feng
- Department of Pediatrics, Affiliated Bayi Children's Hospital, General Military Hospital of Beijing PLA, Beijing Key Laboratory of Pediatric Organ Failure, Beijing 100700, P.R. China
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18
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Baicalin attenuates angiotensin II-induced endothelial dysfunction. Biochem Biophys Res Commun 2015; 465:101-7. [DOI: 10.1016/j.bbrc.2015.07.138] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 07/28/2015] [Indexed: 12/25/2022]
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19
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Xiao X, Zhang C, Ma X, Miao H, Wang J, Liu L, Chen S, Zeng R, Chen Y, Bihl JC. Angiotensin-(1-7) counteracts angiotensin II-induced dysfunction in cerebral endothelial cells via modulating Nox2/ROS and PI3K/NO pathways. Exp Cell Res 2015; 336:58-65. [PMID: 26101159 DOI: 10.1016/j.yexcr.2015.06.010] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 11/29/2022]
Abstract
Angiotensin (Ang) II, the main effector of the renin-angiotensin system, has been implicated in the pathogenesis of vascular diseases. Ang-(1-7) binds to the G protein-coupled Mas receptor (MasR) and can exert vasoprotective effects. We investigated the effects and underlying mechanisms of Ang-(1-7) on Ang II-induced dysfunction and oxidative stress in human brain microvascular endothelial cells (HbmECs). The pro-apoptotic activity, reactive oxygen species (ROS) and nitric oxide (NO) productions in HbmECs were measured. The protein expressions of nicotinamide adenine dinucleotide phosphate oxidase 2 (Nox2), serine/threonine kinase (Akt), endothelial nitric oxide synthase (eNOS) and their phosphorylated forms (p-Akt and p-eNOS) were examined by western blot. MasR antagonist and phosphatidylinositol-3-kinase (PI3K) inhibitor were used for receptor/pathway verification. We found that Ang-(1-7) suppressed Ang II-induced pro-apoptotic activity, ROS over-production and NO reduction in HbmECs, which were abolished by MasR antagonist. In addition, Ang-(1-7) down-regulated the expression of Nox2, and up-regulated the ratios of p-Akt/Akt and its downstream p-eNOS/eNOS in HbmECs. Exposure to PI3K inhibitor partially abrogated Ang-(1-7)-mediated protective effects in HbmECs. Our data suggests that Ang-(1-7)/MasR axis protects HbmECs from Ang II-induced dysfunction and oxidative stress via inhibition of Nox2/ROS and activation of PI3K/NO pathways.
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Affiliation(s)
- Xiang Xiao
- Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Cheng Zhang
- Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Xiaotang Ma
- Institute of Neurology, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, China
| | - Huilai Miao
- Department of Surgery, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, China
| | - Jinju Wang
- Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Langni Liu
- Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Shuzhen Chen
- Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Rong Zeng
- Department of Surgery, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, China
| | - Yanfang Chen
- Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA.
| | - Ji C Bihl
- Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA; Institute of Neurology, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, China.
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He J, Yang Z, Yang H, Wang L, Wu H, Fan Y, Wang W, Fan X, Li X. Regulation of insulin sensitivity, insulin production, and pancreatic β cell survival by angiotensin-(1-7) in a rat model of streptozotocin-induced diabetes mellitus. Peptides 2015; 64:49-54. [PMID: 25576844 DOI: 10.1016/j.peptides.2014.12.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/30/2014] [Accepted: 12/30/2014] [Indexed: 12/13/2022]
Abstract
The aim of this study is to determine the antidiabetic activity of Ang-(1-7), an important component of the renin-angiotensin system, in a rat model of streptozotocin (STZ)-induced type 2 diabetes mellitus (DM). A total of 36 male Wistar rats were randomly divided into 3 groups: control group fed standard laboratory diet, DM group fed high-fat diet and injected with STZ, and Ang-(1-7) group receiving injection of STZ followed by Ang-(1-7) treatment. Body weight, blood glucose levels, fasting serum Ang II and insulin levels, and homeostasis model assessment of insulin resistance (HOMA-IR) were measured. The pancreas was collected for histological examination and gene expression analysis. Notably, the Ang-(1-7) group showed a significant decrease in fasting blood glucose and serum Ang II levels and HOMA-IR values and increase in fasting serum insulin levels. Pancreatic β cells in the control and Ang-(1-7) groups were normally distributed in the center of pancreatic islets with large clear nuclei. In contrast, pancreatic β cells in the DM group had a marked shrinkage of the cytoplasm and condensation of nuclear chromatin. Ang-(1-7) treatment significantly facilitated insulin production by β cells in diabetic rats. The DM-associated elevation of inducible nitric oxide synthase (iNOS), caspase-3, caspase-9, caspase-8, and Bax and reduction of Bcl-2 was significantly reversed by Ang-(1-7) treatment. Taken together, Ang-(1-7) protects against STZ-induced DM through improvement of insulin resistance, insulin secretion, and pancreatic β cell survival, which is associated with reduction of iNOS expression and alteration of the Bcl-2 family.
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Affiliation(s)
- Junhua He
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China.
| | - Zhiming Yang
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Huiyu Yang
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Li Wang
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Huilu Wu
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yunjuan Fan
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Wei Wang
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xin Fan
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xing Li
- Department of Endocrinology, The Second Hospital of Shanxi Medical University, Taiyuan, China.
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Liang B, Wang X, Bian Y, Yang H, Liu M, Bai R, Yang Z, Xiao C. Angiotensin-(1-7) upregulates expression of adenosine triphosphate-binding cassette transporter A1 and adenosine triphosphate-binding cassette transporter G1 through the Mas receptor through the liver X receptor alpha signalling pathway in THP-1 macrophag. Clin Exp Pharmacol Physiol 2014; 41:1023-30. [PMID: 25225013 DOI: 10.1111/1440-1681.12312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 09/04/2014] [Accepted: 09/05/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Bin Liang
- Department of Cardiology; The Second Hospital of Shanxi Medical University; Taiyuan China
| | - Xin Wang
- Department of Rheumatology; The Second Hospital of Shanxi Medical University; Taiyuan China
| | - Yunfei Bian
- Department of Cardiology; The Second Hospital of Shanxi Medical University; Taiyuan China
| | - Huiyu Yang
- Department of Cardiology; The Second Hospital of Shanxi Medical University; Taiyuan China
| | - Ming Liu
- Teaching-Research section of Cell Biology and Genetics; Shanxi Medical University; Taiyuan China
| | - Rui Bai
- Department of Cardiology; The Second Hospital of Shanxi Medical University; Taiyuan China
| | - Zhiming Yang
- Department of Cardiology; The Second Hospital of Shanxi Medical University; Taiyuan China
| | - Chuanshi Xiao
- Department of Cardiology; The First Hospital of Shanxi Medical University; Taiyuan China
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Choi JH, Nguyen MP, Lee D, Oh GT, Lee YM. Hypoxia-induced endothelial progenitor cell function is blunted in angiotensinogen knockout mice. Mol Cells 2014; 37:487-96. [PMID: 24938229 PMCID: PMC4086343 DOI: 10.14348/molcells.2014.0119] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 06/03/2014] [Accepted: 06/05/2014] [Indexed: 12/13/2022] Open
Abstract
Angiotensinogen (AGT), the precursor of angiotensin I, is known to be involved in tumor angiogenesis and associated with the pathogenesis of coronary atherosclerosis. This study was undertaken to determine the role played by AGT in endothelial progenitor cells (EPCs) in tumor progression and metastasis. It was found that the number of EPC colonies formed by AGT heterozygous knockout (AGT(+/-)) cells was less than that formed by wild-type (WT) cells, and that the migration and tube formation abilities of AGT(+/-) EPCs were significantly lower than those of WT EPCs. In addition, the gene expressions of vascular endothelial growth factor (VEGF), Flk1, angiopoietin (Ang)-1, Ang-2, Tie-2, stromal derived factor (SDF)-1, C-X-C chemokine receptor type 4 (CXCR4), and of endothelial nitric oxide synthase (eNOS) were suppressed in AGT(+/-) EPCs. Furthermore, the expressions of hypoxia-inducible factor (HIF)-1α and -2α were downregulated in AGT(+/-) early EPCs under hypoxic conditions, suggesting a blunting of response to hypoxia. Moreover, the activation of Akt/eNOS signaling pathways induced by VEGF, epithelial growth factor (EGF), or SDF-1α were suppressed in AGT(+/-) EPCs. In AGT(+/-) mice, the incorporation of EPCs into the tumor vasculature was significantly reduced, and lung tumor growth and melanoma metastasis were attenuated. In conclusion, AGT is required for hypoxia-induced vasculogenesis.
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Affiliation(s)
- Jin-Hwa Choi
- National Basic Research Laboratory of Vascular Homeostasis Regulation, Kyungpook National University, Daegu 702-701,
Korea
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu 702-701,
Korea
| | - Minh-Phuong Nguyen
- National Basic Research Laboratory of Vascular Homeostasis Regulation, Kyungpook National University, Daegu 702-701,
Korea
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu 702-701,
Korea
| | - Dongjin Lee
- National Basic Research Laboratory of Vascular Homeostasis Regulation, Kyungpook National University, Daegu 702-701,
Korea
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu 702-701,
Korea
| | - Goo-Taeg Oh
- Department of Life Science, Ewha University, Seoul 120-750,
Korea
| | - You-Mie Lee
- National Basic Research Laboratory of Vascular Homeostasis Regulation, Kyungpook National University, Daegu 702-701,
Korea
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu 702-701,
Korea
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Chen J, Xiao X, Chen S, Zhang C, Chen J, Yi D, Shenoy V, Raizada MK, Zhao B, Chen Y. Angiotensin-converting enzyme 2 priming enhances the function of endothelial progenitor cells and their therapeutic efficacy. Hypertension 2012; 61:681-9. [PMID: 23266545 DOI: 10.1161/hypertensionaha.111.00202] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Angiotensin-converting enzyme 2 (ACE2) is a lately discovered enzyme catalyzing Angiotensin II into Angiotensin 1-7. Angiotensin II has been reported to impair endothelial progenitor cell (EPC) function and is detrimental to stroke. Here, we studied the role of ACE2 in regulating EPC function in vitro and in vivo. EPCs were cultured from human renin and angiotensinogen transgenic (R+A+) mice and their controls (R-A-). In in vitro experiments, EPCs were transduced with lentivirus-ACE2 or lentivirus-green fluorescence protein. The effects of ACE2 overexpression on EPC function and endothelial NO synthase (eNOS)/nicotinamide adenine dinucleotide phosphate oxidase (Nox) expression were determined. ACE2, eNOS, and Nox inhibitors were used for pathway validation. In in vivo studies, the therapeutic efficacy of EPCs overexpressing ACE2 was determined at day 7 after ischemic stroke induced by middle cerebral artery occlusion. We found that (1) lentivirus-ACE2 transduction resulted in a 4-fold increase of ACE2 expression in EPCs. This was accompanied with an increase in eNOS expression and NO production, and a decrease in Nox2 and -4 expression and reactive oxygen species production. (2) ACE2 overexpression improved the abilities of EPC migration and tube formation, which were impaired in R+A+ mice. These effects were inhibited by ACE2 or eNOS inhibitor and further enhanced by Nox inhibitor. (3) Transfusion of lentivirus-ACE2-primed EPCs reduced cerebral infarct volume and neurological deficits, and increased cerebral microvascular density and angiogenesis. Our data demonstrate that ACE2 improves EPC function, via regulating eNOS and Nox pathways, and enhances the efficacy of EPC-based therapy for ischemic stroke.
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Affiliation(s)
- Ji Chen
- Wright State University, Boonshoft School of Medicine, Dayton, OH 45435, USA
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YANG HUIYU, BIAN YUNFEI, XIAO CHUANSHI, LIANG BIN, ZHANG NANA, GAO FEN, YANG ZHIMING. Angiotensin-(1-7) stimulates cholesterol efflux from angiotensin II-treated cholesterol-loaded THP-1 macrophages through the suppression of p38 and c-Jun N-terminal kinase signaling. Mol Med Rep 2012; 12:1387-92. [DOI: 10.3892/mmr.2015.3484] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 01/23/2015] [Indexed: 11/06/2022] Open
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