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Zhang Y, Zhang H, Zhang Z, Li S, Jiang W, Li X, Lv J. LncRNA MALAT1 cessation antagonizes hypoxia/reoxygenation injury in hepatocytes by inhibiting apoptosis and inflammation via the HMGB1-TLR4 axis. Mol Immunol 2019; 112:22-29. [DOI: 10.1016/j.molimm.2019.04.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 01/22/2019] [Accepted: 04/23/2019] [Indexed: 01/07/2023]
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Zhu Z, Zhao C. WITHDRAWN: LncRNA AK139128 promotes cardiomyocyte autophagy and apoptosis in myocardial hypoxia-reoxygenation injury. Life Sci 2019:116705. [PMID: 31369757 DOI: 10.1016/j.lfs.2019.116705] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 07/24/2019] [Accepted: 07/28/2019] [Indexed: 10/26/2022]
Abstract
This article has been withdrawn at the request of the editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Zhidong Zhu
- Department of Cardiology, Hospital 903 of PLA, Hangzhou City, Zhejiang Province 310013, China
| | - Chufeng Zhao
- Department of Emergency, Zhuji People's Hospital of Zhejiang Province, Zhuji City, Zhejiang Province 311800, China.
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Noncoding RNAs in Cardiac Autophagy following Myocardial Infarction. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:8438650. [PMID: 31341537 PMCID: PMC6589265 DOI: 10.1155/2019/8438650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 04/23/2019] [Indexed: 12/14/2022]
Abstract
Macroautophagy is an evolutionarily conserved process of the lysosome-dependent degradation of damaged proteins and organelles and plays an important role in cellular homeostasis. Macroautophagy is upregulated after myocardial infarction (MI) and seems to be detrimental during reperfusion and protective during left ventricle remodeling. Identifying new regulators of cardiac autophagy may help to maintain the activity of this process and protect the heart from MI effects. Recently, it was shown that noncoding RNAs (microRNAs and long noncoding RNAs) are involved in autophagy regulation in different cell types including cardiac cells. In this review, we summarized the role of macroautophagy in the heart following MI and we focused on the noncoding RNAs and their targeted genes reported to regulate autophagy in the heart under these pathological conditions.
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Wei L, Li J, Han Z, Chen Z, Zhang Q. Silencing of lncRNA MALAT1 Prevents Inflammatory Injury after Lung Transplant Ischemia-Reperfusion by Downregulation of IL-8 via p300. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:285-297. [PMID: 31604167 PMCID: PMC6796730 DOI: 10.1016/j.omtn.2019.05.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 05/17/2019] [Indexed: 12/15/2022]
Abstract
Ischemia-reperfusion injury is a common early complication after lung transplantation. It was reported that long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is involved in ischemia-reperfusion injury and regulates inflammation. This study aimed to explore the role of MALAT1 in inflammatory injury following lung transplant ischemia-reperfusion (LTIR). A LTIR rat model was successfully established, with the expression of MALAT1 and interleukin-8 (IL-8) in lung tissues detected. Then, in vitro loss- and gain-of-function investigations were conducted to evaluate the effect of MALAT1 on pulmonary epithelial cell apoptosis and IL-8 expression. The relationship among MALAT1, p300, and IL-8 was tested. Moreover, a sh-MALAT1-mediated model of LTIR was established in vivo to examine inflammatory injury and chemotaxis infiltration. Both IL-8 and MALAT1 were highly expressed in LTIR. MALAT1 interacted with p300 to regulate the IL-8 expression by recruiting p300. Importantly, silencing of MALAT1 inhibited the chemotaxis of neutrophils by downregulating IL-8 expression via binding to p300. Besides, MALAT1 silencing alleviated the inflammatory injury after LTIR by downregulating IL-8 and inhibiting infiltration and activation of neutrophils. Collectively, these results demonstrated that silencing of MALAT1 ameliorated the inflammatory injury after LTIR by inhibiting chemotaxis of neutrophils through p300-mediated downregulation of IL-8, providing clinical insight for LTIR injury.
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Affiliation(s)
- Li Wei
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University and People's Hospital of Henan University, Zhengzhou 450003, P.R. China
| | - Jiwei Li
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University and People's Hospital of Henan University, Zhengzhou 450003, P.R. China.
| | - Zhijun Han
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University and People's Hospital of Henan University, Zhengzhou 450003, P.R. China
| | - Zhong Chen
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University and People's Hospital of Henan University, Zhengzhou 450003, P.R. China
| | - Quan Zhang
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University and People's Hospital of Henan University, Zhengzhou 450003, P.R. China
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Deng Y, Zhang H. WITHDRAWN: Knockdown of lncRNA AK139128 alleviates cardiomyocyte autophagy and apoptosis of induced by myocardial hypoxia-reoxygenation injury via targeting miR-499/FOXO4 axis. Gene 2019:S0378-1119(19)30479-2. [PMID: 31075407 DOI: 10.1016/j.gene.2019.05.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 04/27/2019] [Accepted: 05/06/2019] [Indexed: 11/18/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Yudong Deng
- WuXie Town Health Center, Zhuji City, Zhejiang Province 311800, China
| | - Haiyan Zhang
- Department of Cardiology, Zhuji People's Hospital of Zhejiang Province, Zhuji City, Zhejiang Province 311800, China.
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Li M, Duan L, Li Y, Liu B. Long noncoding RNA/circular noncoding RNA-miRNA-mRNA axes in cardiovascular diseases. Life Sci 2019; 233:116440. [PMID: 31047893 DOI: 10.1016/j.lfs.2019.04.066] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/23/2019] [Accepted: 04/29/2019] [Indexed: 02/01/2023]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of death worldwide. Non-coding RNAs including long non-coding RNAs (lncRNAs), circular RNAs (circRNAs) and microRNAs (miRNAs) have been reported to participate in pathological developments of CVDs through various mechanisms. Among them, the networks among lncRNAs/circRNAs, miRNAs, and mRNAs have recently attracted attention. Understanding the molecular mechanism could aid the discovery of therapeutic targets or strategies in CVDs including atherosclerosis, myocardial infarction (MI), hypertrophy, heart failure (HF) and cardiomyopathy. In this review, we summarize the latest research involving the lncRNA/circRNA-miRNA-mRNA axis in CVDs, with emphasis on the molecular mechanism.
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Affiliation(s)
- Ming Li
- Department of Gastroenterology, The Second Hospital of Jilin University, 218 Ziqiang Road, Changchun 130041, China
| | - Liwei Duan
- Department of Gastroenterology, The Second Hospital of Jilin University, 218 Ziqiang Road, Changchun 130041, China
| | - Yangxue Li
- Department of Cardiology, The Second Hospital of Jilin University, 218 Ziqiang Road, Changchun 130041, China
| | - Bin Liu
- Department of Cardiology, The Second Hospital of Jilin University, 218 Ziqiang Road, Changchun 130041, China.
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Huang S, Zhang L, Song J, Wang Z, Huang X, Guo Z, Chen F, Zhao X. Long noncoding RNA MALAT1 mediates cardiac fibrosis in experimental postinfarct myocardium mice model. J Cell Physiol 2019; 234:2997-3006. [PMID: 30146700 DOI: 10.1002/jcp.27117] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 07/02/2018] [Indexed: 12/19/2022]
Abstract
Cardiac fibrosis is a pathological remodeling response to myocardial infarction (MI) and impairs cardiac contractility. Long noncoding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is increased in patients with MI. However, the functions of MALAT1 in cardiac fibrosis have not been elucidated. This study elucidates the roles of MALAT1 in MI and the underlying mechanisms. The MI model was established by artificial coronary artery occlusion in mice. Western blot analysis and quantitative reverse transcription-polymerase chain reaction were performed to analyze protein expression and RNA expression, respectively. Cardiac function was measured by echocardiography. Masson's trichrome staining was used to exhibit the fibrotic area in MI hearts. Cardiac fibroblasts were isolated from newborn pups, and cell proliferation was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Upregulation of MALAT1 and downregulation of microRNA-145 (miR-145) were induced in MI heart and angiotensin II (AngII)-treated cardiac fibroblasts, and the inhibition of miR-145 expression was reversed by MALAT1 depletion. Knockdown MALAT1 ameliorated MI-impaired cardiac function and prevented AngII-induced fibroblast proliferation, collagen production, and α-SMA expression in cardiac fibroblasts. MALAT1 stability and transforming growth factor-β1 (TGF-β1) activity were regulated by miR-145. AngII-induced TGF-β1 activity in cardiac fibroblasts was blocked by MALAT1 knockdown. Based on these results, we concluded that lncRNA MALAT1 promotes cardiac fibrosis and deteriorates cardiac function post-MI by regulating TGF-β1 activity via miR-145.
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Affiliation(s)
- Songqun Huang
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Liang Zhang
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jingwen Song
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhongkai Wang
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xinmiao Huang
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhifu Guo
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Feng Chen
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xianxian Zhao
- Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, China
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Jia P, Wu N, Jia D, Sun Y. Downregulation of MALAT1 alleviates saturated fatty acid-induced myocardial inflammatory injury via the miR-26a/HMGB1/TLR4/NF-κB axis. Diabetes Metab Syndr Obes 2019; 12:655-665. [PMID: 31123414 PMCID: PMC6511247 DOI: 10.2147/dmso.s203151] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/04/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose: The increased level of saturated fatty acids (SFAs) is found in patients with diabetes, obesity, and other metabolic disorders. SFAs can induce lipotoxic damage to cardiomyocytes, but the mechanism is unclear. The long noncoding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) acts as a key regulator in palmitic acid (PA)-induced hepatic steatosis, but its role in PA-induced myocardial lipotoxic injury is still unknown. The aim of this study was to explore the role and underlying mechanism of MALAT1 in PA-induced myocardial lipotoxic injury. Methods: MALAT1 expression in PA-treated human cardiomyocytes (AC16 cells) was detected by RT-qPCR. The effect of MALAT1 on PA-induced myocardial injury was measured by Cell Counting Kit-8, lactate dehydrogenase (LDH), and creatine kinase-MB (CK-MB) assays. Apoptosis was detected by flow cytometry. The activities of cytokines and nuclear factor (NF)-κB were detected by enzyme-linked immunosorbent assay. The interaction between MALAT1 and miR-26a was evaluated by a luciferase reporter assay and RT-qPCR. The regulatory effects of MALAT1 on high mobility group box 1 (HMGB1) expression were evaluated by RT-qPCR and western blotting. Results: MALAT1 was significantly upregulated in cardiomyocytes after PA treatment. Knockdown of MALAT1 increased the viability of PA-treated cardiomyocytes, decreased apoptosis, and reduced the levels of LDH, CK-MB, TNF-α, and IL-1β. Moreover, we found that MALAT1 specifically binds to miR-26a and observed a reciprocal negative regulatory relationship between these factors. We further found that the downregulation of MALAT1 represses HMGB1 expression, thereby inhibiting the activation of the Toll-like receptor 4 (TLR4)/NF-κB-mediated inflammatory response. These repressive effects were rescued by an miR-26a inhibitor. Conclusion: We demonstrate that MALAT1 is induced by SFAs and its downregulation alleviates SFA-induced myocardial inflammatory injury via the miR-26a/HMGB1/TLR4/NF-κB axis. Our findings provide new insight into the mechanism underlying myocardial lipotoxic injury.
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Affiliation(s)
- Pengyu Jia
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People‘s Republic of China
| | - Nan Wu
- The Central Laboratory of the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People‘s Republic of China
| | - Dalin Jia
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People‘s Republic of China
| | - Yingxian Sun
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People‘s Republic of China
- Correspondence: Yingxian Sun; Dalin JiaDepartment of Cardiology, The First Affiliated Hospital of China Medical University, 155th North of Nanjing Street, Heping District, Shenyang 110001, Liaoning, People’s Republic of ChinaTel +86 248 328 2602; Tel +86 248 328 2602Fax +860 248 328 2602; +860 248 328 2688Email ;
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The lncRNA H19/miR-675 axis regulates myocardial ischemic and reperfusion injury by targeting PPARα. Mol Immunol 2019; 105:46-54. [DOI: 10.1016/j.molimm.2018.11.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 10/24/2018] [Accepted: 11/14/2018] [Indexed: 12/21/2022]
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Su J, Fang M, Tian B, Luo J, Jin C, Wang X, Ning Z, Li X. Atorvastatin protects cardiac progenitor cells from hypoxia-induced cell growth inhibition via MEG3/miR-22/HMGB1 pathway. Acta Biochim Biophys Sin (Shanghai) 2018; 50:1257-1265. [PMID: 30481260 DOI: 10.1093/abbs/gmy133] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Indexed: 12/14/2022] Open
Abstract
Heart failure (HF) induced by ischemia myocardial infarction (MI) is one of the major causes of morbidity and mortality all around the world. Atorvastatin, a hydroxymethylglutaryl coenzyme A reductase inhibitor, has been demonstrated to benefit patients with ischemic or non-ischemic-induced HF, but the mechanism is still poorly understood. Increasing evidence indicates that lncRNAs play important role in variety of human disease. However, the role and underlying molecular mechanisms remain largely unclear. In our work, we applied 0.5% O2 to generate a hypoxia cardiac progenitor cell (CPC) model. Then, CCK8 and EdU assays were employed to investigate the role of atorvastatin in hypoxia CPC cell model. We found that hypoxia inhibits CPC viability and proliferation through modulating MEG3 expression, while atorvastatin application can protect CPCs from hypoxia-induced injury through inhibiting MEG3 expression. Then, we demonstrated that repression of MEG3 inhibited the hypoxia-induced injury of CPCs and overexpression of MEG3 inhibited the protective effect of atorvastatin in the hypoxia-induced injury of CPCs. Furthermore, our study illustrated that atorvastatin played its role in CPC viability and proliferation by modulating the expression of HMGB1 through the MEG3/miR-22 pathway. Our study, for the first time, uncovered the molecular mechanism of atorvastatin's protective role in cardiomyocytes under hypoxia condition, which may provide an exploitable target in developing effective therapy drugs for MI patients.
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Affiliation(s)
- Jinwen Su
- Department of Cardiology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201138, China
| | - Ming Fang
- Department of Cardiology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201138, China
| | - Bei Tian
- Department of Cardiology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201138, China
| | - Jun Luo
- Department of Cardiology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201138, China
| | - Can Jin
- Department of Cardiology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201138, China
| | - Xuejun Wang
- Department of Cardiology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201138, China
| | - Zhongping Ning
- Department of Cardiology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201138, China
| | - Xinming Li
- Department of Cardiology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201138, China
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Long noncoding RNA RMRP upregulation aggravates myocardial ischemia-reperfusion injury by sponging miR-206 to target ATG3 expression. Biomed Pharmacother 2018; 109:716-725. [PMID: 30551524 DOI: 10.1016/j.biopha.2018.10.079] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 07/30/2018] [Accepted: 10/14/2018] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Coronary heart disease is a common cause of death and disability worldwide and mainly results from myocardial ischemia-reperfusion (I/R) injury. This study aimed to elucidate the roles and possible mechanism of long noncoding RNA Component Of Mitochondrial RNA Processing Endoribonuclease (RMRP) in protecting against ischemic myocardial injury. MATERIAL AND METHODS The H9c2 cardiomyocytes were cultured under hypoxia condition to induce myocardial injury. The RMRP expression under hypoxia condition was determined, followed by investigation of the effects of RMRP dysregulation on hypoxia-induced injury in H9c2 cells. In addition, the regulatory relationship between RMRP and miR-206 was detected, and the potential target of miR-206 was identified. Besides, the association of RMRP and activation of PI3K/AKT/mTOR signaling pathway was explored. Furthermore, an in vivo rat model of myocardial I/R injury was established by subjection to 60 min ischemia and subsequently 24 h reperfusion for validation of the role of RMRP in regulating myocardial I/R injury in vivo. RESULTS The results showed that overexpression of RMRP aggravated hypoxia-induced injury in H9c2 cells. Moreover, miR-206 was negatively regulated by RMRP and overexpression of RMRP aggravated hypoxia injury by downregulation of miR-206. Furthermore, ATG3 was a target of miR-206, and he effects of miR-206 on hypoxia injury were through targeting ATG3. Besides, overexpression of RMRP activated PI3K/AKT/mTOR pathway in hypoxia-treated H9c2 cells, which were reversed by miR-206 overexpression at the same time. Furthermore, in an in vivo rat model of myocardial I/R injury, suppression of RMPR improved cardiac function and inhibited apoptosis after myocardial I/R injury. CONCLUSIONS Our findings reveal that upregulation of RMRP may aggravate myocardial I/R injury possible by downregulation of miR-206 and subsequently upregulation of ATG3. Activation of PI3K/Akt/mTOR pathway may be a key downstream mechanism mediating the cardioprotection of RMPR/miR-206/ATG3 axis against myocardial I/R injury.
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Wang S, Yu W, Chen J, Yao T, Deng F. LncRNA MALAT1 sponges miR-203 to promote inflammation in myocardial ischemia-reperfusion injury. Int J Cardiol 2018; 268:245. [PMID: 30041794 DOI: 10.1016/j.ijcard.2018.03.085] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 03/14/2018] [Indexed: 10/28/2022]
Affiliation(s)
- Shuang Wang
- Department of Anesthesiology, Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Wenqian Yu
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Anesthesiology Research Institute of Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Jingyi Chen
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Anesthesiology Research Institute of Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Tao Yao
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Anesthesiology Research Institute of Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Fan Deng
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Anesthesiology Research Institute of Hubei University of Medicine, Shiyan, Hubei Province, China.
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Guo GL, Sun LQ, Sun MH, Xu HM. LncRNA SLC8A1-AS1 protects against myocardial damage through activation of cGMP-PKG signaling pathway by inhibiting SLC8A1 in mice models of myocardial infarction. J Cell Physiol 2018; 234:9019-9032. [PMID: 30378115 DOI: 10.1002/jcp.27574] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 09/17/2018] [Indexed: 12/13/2022]
Abstract
Extensive investigations into long noncoding RNAs (lncRNAs) in various diseases and cancers, including acute myocardial infarction (AMI) have been conducted. The current study aimed to investigate the role of lncRNA solute carrier family 8 member A1 antisense RNA 1 (SLC8A1-AS1) in myocardial damage by targeting solute carrier family 8 member A1 (SLC8A1) via cyclic guanosine 3',5'-monophosphate-protein kinase G (cGMP-PKG) signaling pathway in AMI mouse models. Differentially expressed lncRNA in AMI were initially screened and target relationship between lncRNA SLC8A1-AS1 and SLC8A1 was then verified. Infarct size, levels of inflammatory factors, biochemical indicators, and the positive expression of the SLC8A1 protein in AMI were subsequently determined. The expression of SLC8A1-AS1, SLC8A1, PKG1, PKG2, atrial natriuretic peptide, and brain natriuretic peptide was detected to assess the effect of SLC8A1-AS1 on SLC8A1 and cGMP-PKG. The respective contents of superoxide dismutase, lactate dehydrogenase (LDH), and malondialdehyde (MDA) were detected accordingly. Microarray data GSE66360 provided evidence indicating that SLC8A1-AS1 was poorly expressed in AMI. SLC8A1 was verified to be a target gene of lncRNA SLC8A1-AS1. SLC8A1-AS1 upregulation decreased levels of left ventricular end-systolic diameter, -dp/ dt max , interleukin 1β (IL-1β), IL-6, transforming growth factor α, nitric oxide, inducible nitric-oxide synthase, endothelial nitric-oxide synthase, infarct size, LDH activity and MDA content, and increased IL-10, left ventricular end-diastolic pressure and + dp/ dt max . Furthermore, the overexpression of SLC8A1-AS1 was noted to elicit an inhibitory effect on the cGMP-PKG signaling pathway via SLC8A1. In conclusion, lncRNA SLC8A1-AS1, by downregulating SLC8A1 and activating the cGMP-PKG signaling pathway, was observed to alleviate myocardial damage, inhibit the release of proinflammatory factors and reduce infarct size, ultimately protecting against myocardial damage.
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Affiliation(s)
- Gong-Liang Guo
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Li-Qun Sun
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Mei-Hua Sun
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Hai-Ming Xu
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, China
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Hu H, Wu J, Li D, Zhou J, Yu H, Ma L. Knockdown of lncRNA MALAT1 attenuates acute myocardial infarction through miR-320-Pten axis. Biomed Pharmacother 2018; 106:738-746. [DOI: 10.1016/j.biopha.2018.06.122] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 12/19/2022] Open
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Melo Z, Ishida C, Goldaraz MDLP, Rojo R, Echavarria R. Novel Roles of Non-Coding RNAs in Opioid Signaling and Cardioprotection. Noncoding RNA 2018; 4:ncrna4030022. [PMID: 30227648 PMCID: PMC6162605 DOI: 10.3390/ncrna4030022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/10/2018] [Accepted: 09/12/2018] [Indexed: 12/16/2022] Open
Abstract
Cardiovascular disease (CVD) is a significant cause of morbidity and mortality across the world. A large proportion of CVD deaths are secondary to coronary artery disease (CAD) and myocardial infarction (MI). Even though prevention is the best strategy to reduce risk factors associated with MI, the use of cardioprotective interventions aimed at improving patient outcomes is of great interest. Opioid conditioning has been shown to be effective in reducing myocardial ischemia-reperfusion injury (IRI) and cardiomyocyte death. However, the molecular mechanisms behind these effects are under investigation and could provide the basis for the development of novel therapeutic approaches in the treatment of CVD. Non-coding RNAs (ncRNAs), which are functional RNA molecules that do not translate into proteins, are critical modulators of cardiac gene expression during heart development and disease. Moreover, ncRNAs such as microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) are known to be induced by opioid receptor activation and regulate opioid signaling pathways. Recent advances in experimental and computational tools have accelerated the discovery and functional characterization of ncRNAs. In this study, we review the current understanding of the role of ncRNAs in opioid signaling and opioid-induced cardioprotection.
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Affiliation(s)
- Zesergio Melo
- CONACyT-Centro de Investigacion Biomedica de Occidente, Instituto Mexicano del Seguro Social, Sierra Mojada #800 Col. Independencia, Guadalajara 44340, Jalisco, Mexico.
| | - Cecilia Ishida
- Programa de Genomica Computacional, Centro de Ciencias Genomicas, Universidad Nacional Autonoma de Mexico, Cuernavaca 62210, Morelos, Mexico.
| | - Maria de la Paz Goldaraz
- Departamento de Anestesiologia, Hospital de Especialidades UMAE CMNO, Instituto Mexicano del Seguro Social, Guadalajara 44340, Jalisco, Mexico.
| | - Rocio Rojo
- Departamento de Anestesiologia, Hospital de Especialidades UMAE CMNO, Instituto Mexicano del Seguro Social, Guadalajara 44340, Jalisco, Mexico.
| | - Raquel Echavarria
- CONACyT-Centro de Investigacion Biomedica de Occidente, Instituto Mexicano del Seguro Social, Sierra Mojada #800 Col. Independencia, Guadalajara 44340, Jalisco, Mexico.
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Zhu P, Yang M, Ren H, Shen G, Chen J, Zhang J, Liu J, Sun C. Long noncoding RNA MALAT1 downregulates cardiac transient outward potassium current by regulating miR-200c/HMGB1 pathway. J Cell Biochem 2018; 119:10239-10249. [PMID: 30145795 DOI: 10.1002/jcb.27366] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 06/25/2018] [Indexed: 12/13/2022]
Abstract
The dysregulation of long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) participates in the remodeling of electrophysiological/ion channel in cardiomyocytes during arrhythmia. The lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is reported to be highly expressed in myocardial ischemia-reperfusion injury and offsets cardioprotective effects of fentanyl. However, the roles of MALAT1 and its related miRNAs during arrhythmia are poorly understood. In this study, the overexpression of MALAT1 was firstly indicated in cardiomyocytes from arrhythmic model rats. After downregulation of MALAT1 by RNA interference, transient outward potassium current (Ito), peak current density, and the levels of Kv4.2 and Kv4.3 channel proteins were increased in rat cardiomyocytes. Then, miR-200c was predicted and convinced to be a direct target of MALAT1, and high-mobility group box 1 (HMGB1) was verified to be a target of miR-200c during arrhythmia. HMGB1 expression reduced by the knockdown of MALAT1 was further decreased by miR-200c overexpression. In addition, cardiac Ito, peak current density, and the levels of Kv4.2 and Kv4.3 in arrhythmic model rats were detected to be negatively correlated with the expression of HMGB1, and to be positively with miR-200c expression. Taken together, these results suggested that MALAT1 may act as a competing endogenous RNA for miR-200c to upregulate the expression of HMGB1 and downregulate cardiac Ito.
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Affiliation(s)
- Peng Zhu
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China.,Department of Cardiovascular Medicine, The Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, China
| | - Manli Yang
- Department of Respiratory Medicine, The Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, China
| | - Hui Ren
- Department of Cardiovascular Medicine, Ankang Central Hospital, Ankang, China
| | - Guidong Shen
- Department of Cardiovascular Medicine, Ankang Central Hospital, Ankang, China
| | - Jinye Chen
- Department of Cardiovascular Medicine, Ankang Central Hospital, Ankang, China
| | - Junkang Zhang
- Department of Cardiovascular Medicine, Ankang Central Hospital, Ankang, China
| | - Jun Liu
- Department of Pathology, Ankang Central Hospital, Ankang, China
| | - Chaofeng Sun
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an, China
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67
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Lei L, Chen J, Huang J, Lu J, Pei S, Ding S, Kang L, Xiao R, Zeng Q. Functions and regulatory mechanisms of metastasis‐associated lung adenocarcinoma transcript 1. J Cell Physiol 2018; 234:134-151. [PMID: 30132842 DOI: 10.1002/jcp.26759] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 04/26/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Li Lei
- Department of Dermatology, Xiangya Hospital Central South University Changsha Hunan China
- Department of Hunan Key Laboratory of Skin Cancer and Psoriasis Xiangya Hospital, Central South University Changsha Hunan China
| | - Jing Chen
- Department of Dermatology Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Jinhua Huang
- Department of Dermatology Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Jianyun Lu
- Department of Dermatology Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Shiyao Pei
- Department of Dermatology Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Shu Ding
- Department of Dermatology Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Liyang Kang
- Department of Dermatology Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Rong Xiao
- Department of Dermatology Second Xiangya Hospital, Central South University Changsha Hunan China
| | - Qinghai Zeng
- Department of Dermatology Third Xiangya Hospital, Central South University Changsha Hunan China
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68
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Wu J, Zhang H, Zheng Y, Jin X, Liu M, Li S, Zhao Q, Liu X, Wang Y, Shi M, Zhang S, Tian J, Sun Y, Zhang M, Yu B. The Long Noncoding RNA MALAT1 Induces Tolerogenic Dendritic Cells and Regulatory T Cells via miR155/Dendritic Cell-Specific Intercellular Adhesion Molecule-3 Grabbing Nonintegrin/IL10 Axis. Front Immunol 2018; 9:1847. [PMID: 30150986 PMCID: PMC6099154 DOI: 10.3389/fimmu.2018.01847] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/26/2018] [Indexed: 12/21/2022] Open
Abstract
By shaping T cell immunity, tolerogenic dendritic cells (tDCs) play critical roles in the induction of immune tolerance after transplantation. However, the role of long noncoding RNAs (lncRNAs) in the function and immune tolerance of dendritic cells (DCs) is largely unknown. Here, we found that the lncRNA MALAT1 is upregulated in the infiltrating cells of tolerized mice with cardiac allografts and activated DCs. Functionally, MALAT1 overexpression favored a switch in DCs toward a tolerant phenotype. Mechanistically, ectopic MALAT1 promoted dendritic cell-specific intercellular adhesion molecule-3 grabbing nonintegrin (DC-SIGN) expression by functioning as an miR155 sponge, which is essential for the tolerogenic maintenance of DCs and the DC-SIGN-positive subset with more potent tolerogenic ability. The adoptive transfer of MALAT1-overexpressing DCs promoted cardiac allograft survival and protected from the development of experimental autoimmune myocarditis, accompanied with increasing antigen-specific regulatory T cells. Therefore, overexpressed MALAT1 induces tDCs and immune tolerance in heart transplantation and autoimmune disease by the miRNA-155/DC-SIGH/IL10 axis. This study highlights that the lncRNA MALAT1 is a novel tolerance regulator in immunity that has important implications in settings in which tDCs are preferred.
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Affiliation(s)
- Jian Wu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Hanlu Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Yang Zheng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Xiangyuan Jin
- Department of Thoracic Surgery, The Third Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingyang Liu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Shuang Li
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Qi Zhao
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Xianglan Liu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Yongshun Wang
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, China
| | - Ming Shi
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Shengnan Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Jinwei Tian
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Yong Sun
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Maomao Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, China
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69
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Yuan F, Lu L, Zhang Y, Wang S, Cai YD. Data mining of the cancer-related lncRNAs GO terms and KEGG pathways by using mRMR method. Math Biosci 2018; 304:1-8. [PMID: 30086268 DOI: 10.1016/j.mbs.2018.08.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/15/2018] [Accepted: 08/01/2018] [Indexed: 02/07/2023]
Abstract
LncRNAs plays an important role in the regulation of gene expression. Identification of cancer-related lncRNAs GO terms and KEGG pathways is great helpful for revealing cancer-related functional biological processes. Therefore, in this study, we proposed a computational method to identify novel cancer-related lncRNAs GO terms and KEGG pathways. By using existing lncRNA database and Max-relevance Min-redundancy (mRMR) method, GO terms and KEGG pathways were evaluated based on their importance on distinguishing cancer-related and non-cancer-related lncRNAs. Finally, GO terms and KEGG pathways with high importance were presented and analyzed. Our literature reviewing showed that the top 10 ranked GO terms and pathways were really related to interpretable tumorigenesis according to recent publications.
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Affiliation(s)
- Fei Yuan
- Department of Science & Technology, Binzhou Medical University Hospital, Binzhou 256603, Shandong, China.
| | - Lin Lu
- Department of Radiology, Columbia University Medical Center, New York 10032, USA.
| | - YuHang Zhang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
| | - ShaoPeng Wang
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
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70
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Yu SY, Dong B, Fang ZF, Hu XQ, Tang L, Zhou SH. Knockdown of lncRNA AK139328 alleviates myocardial ischaemia/reperfusion injury in diabetic mice via modulating miR-204-3p and inhibiting autophagy. J Cell Mol Med 2018; 22:4886-4898. [PMID: 30047214 PMCID: PMC6156366 DOI: 10.1111/jcmm.13754] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/10/2018] [Indexed: 01/13/2023] Open
Abstract
This study was aimed at investigating the effects of lncRNA AK139328 on myocardial ischaemia/reperfusion injury (MIRI) in diabetic mice. Ischaemia/reperfusion (I/R) model was constructed in normal mice (NM) and diabetic mice (DM). Microarray analysis was utilized to identify lncRNA AK139328 overexpressed in DM after myocardial ischaemia/reperfusion (MI/R). RT‐qPCR assay was utilized to investigate the expressions of lncRNA AK139328 and miR‐204‐3p in cardiomyocyte and tissues. Left ventricular end diastolic diameter (LVEDD), left ventricular end systolic diameter (LVESD), left ventricular ejection fraction (LVEF) and fractioning shortening (FS) were obtained by transthoracic echocardiography. Haematoxylin‐eosin (HE) staining and Masson staining were utilized to detect the damage of myocardial tissues degradation of myocardial fibres and integrity of myocardial collagen fibres. Evans Blue/TTC staining was used to determine the myocardial infarct size. TUNEL staining was utilized to investigate cardiomyocyte apoptosis. The targeted relationship between lncRNA AK139328 and miR‐204‐3p was confirmed by dual‐luciferase reporter gene assay. MTT assay was used for analysis of cardiomyocyte proliferation. Western blot was utilized to investigate the expression of alpha smooth muscle actin (α‐SMA), Atg7, Atg5, LC3‐II/LC3‐I and p62 marking autophagy. Knockdown of lncRNA AK139328 relieved myocardial ischaemia/reperfusion injury in DM and inhibited cardiomyocyte autophagy as well as apoptosis of DM. LncRNA AK139328 modulated miR‐204‐3p directly. MiR‐204‐3p and knockdown of lncRNA AK139328 relieved hypoxia/reoxygenation injury via inhibiting cardiomyocyte autophagy. Silencing lncRNA AK139328 significantly increased miR‐204‐3p expression and inhibited cardiomyocyte autophagy, thereby attenuating MIRI in DM.
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Affiliation(s)
- Si-Yang Yu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bo Dong
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhen-Fei Fang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xin-Qun Hu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Liang Tang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Sheng-Hua Zhou
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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71
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The MALAT1 gene polymorphism and its relationship with the onset of congenital heart disease in Chinese. Biosci Rep 2018; 38:BSR20171381. [PMID: 29559566 PMCID: PMC6048208 DOI: 10.1042/bsr20171381] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/03/2018] [Accepted: 01/10/2018] [Indexed: 01/07/2023] Open
Abstract
Many long non-coding RNAs (lncRNAs), including lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), are involved in various cardiac diseases. We evaluated the effects of tag single nucleotide polymorphisms (tag-SNPs) on MALAT1 gene in a Chinese population of children with congenital heart disease (CHD). In the present study, 713 CHD patients and 730 gender- and age-matched children without CHD were genotyped for MALAT1 tag-SNPs rs11227209, rs619586, and rs3200401. Further investigation of SNP’s function was performed by luciferase assay. Statistical analyses, including uni- and multivariate logistic regression were performed to quantitate the association between these tag SNPs and CHD. We discovered that MALAT1 rs619586 GG allele was significantly associated with lower risk of CHD (odds ratio (OR) = 0.77, 95% confidence interval (CI) = 0.59–0.92, P=0.014) in additive model. Functional investigation indicated that G allele of rs619586 could trigger higher expression of MALAT1. We demonstrated that the functional MALAT1 polymorphism rs619586 A>G was significantly associated with CHD susceptibility in Chinese population, potentially via regulating MALAT1 expression.
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72
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Zhou J, Shi YY. A Bipartite Network and Resource Transfer-Based Approach to Infer lncRNA-Environmental Factor Associations. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2018; 15:753-759. [PMID: 28436883 DOI: 10.1109/tcbb.2017.2695187] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Phenotypes and diseases are often determined by the complex interactions between genetic factors and environmental factors (EFs). However, compared with protein-coding genes and microRNAs, there is a paucity of computational methods for understanding the associations between long non-coding RNAs (lncRNAs) and EFs. In this study, we focused on the associations between lncRNA and EFs. By using the common miRNA partners of any pair of lncRNA and EF, based on the competing endogenous RNA (ceRNA) hypothesis and the technique of resources transfer within the experimentally-supported lncRNA-miRNA and miRNA-EF association bipartite networks, we propose an algorithm for predicting new lncRNA-EF associations. Results show that, compared with another recently-proposed method, our approach is capable of predicting more credible lncRNA-EF associations. These results support the validity of our approach to predict biologically significant associations, which could lead to a better understanding of the molecular processes.
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73
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He L, Chen Y, Hao S, Qian J. Uncovering novel landscape of cardiovascular diseases and therapeutic targets for cardioprotection via long noncoding RNA–miRNA–mRNA axes. Epigenomics 2018; 10:661-671. [PMID: 29692219 DOI: 10.2217/epi-2017-0176] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Protein coding sequences account for around 3% of the human genome, the rest are noncoding RNA (ncRNA) including long ncRNA (lncRNA) and miRNA. Accumulating evidence indicates that lncRNAs and miRNAs are candidate biomarkers for diagnosis, prognosis and therapy of cardiovascular diseases. The lncRNAs act as sponge-like effects on numerous miRNAs, subsequently regulating miRNAs and their targets, mRNA functions. The role of lncRNA–miRNA–mRNA axis in pathogenesis of cardiovascular diseases has been recently reported and highlighted. Herein, this review discusses emerging roles of lncRNA–miRNA–mRNA axis in cardiovascular pathophysiology and regulation, with a novel focus on cardioprotective network activities of the two subgroup ncRNAs.
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Affiliation(s)
- Liang He
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province 650032, PR China
- Department of Anesthesiology, Yan'an Hospital of Kunming City, Kunming Medical University, Kunming, Yunnan Province 650051, PR China
| | - Yan Chen
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province 650032, PR China
| | - Shuqing Hao
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province 650032, PR China
| | - Jinqiao Qian
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province 650032, PR China
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Li L, Wang Q, Yuan Z, Chen A, Liu Z, Wang Z, Li H. LncRNA-MALAT1 promotes CPC proliferation and migration in hypoxia by up-regulation of JMJD6 via sponging miR-125. Biochem Biophys Res Commun 2018; 499:711-718. [PMID: 29605300 DOI: 10.1016/j.bbrc.2018.03.216] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 03/29/2018] [Indexed: 02/08/2023]
Abstract
The death of cardiomyocytes after myocardial infarction (MI) often leads to ventricular remodeling as well as heart failure (HF). The cardiac progenitor cells (CPCs) have the ability to regenerate functional heart muscle in patients after MI, which provides a promising method for MI-induced HF therapy. However, to date, CPCs can easily lose their proliferation ability in the infarcted myocardium. Therefore, exploring the mechanism for CPC proliferation is essential for CPC-based therapy in MI-induced HF. A previous study indicated that a hypoxic environment is essential for CPC proliferation, but the mechanism is not yet clear. In this work, we discovered that CoCl2-induced hypoxia can promote CPC proliferation and migration. Additionally, long non-coding RNA MALAT1 expression was significantly up-regulated in the CoCl2-induced hypoxia CPC model. MALAT1 suppression inhibited CPC proliferation and migration under hypoxic conditions. In addition, MALAT1 acted as a sponge for miR-125. The miR-125 inhibitor restored the proliferation and migration potentials of CPCs after a MALAT1 knockdown in hypoxia. A further study demonstrated that JMJD6 was a target of miR-125 whose expression was negatively regulated by miR-125. JMJD6 knockdown blocked miR-125 inhibitor's protective effect on CPC function in hypoxia. Ultimately, our finding demonstrated that MALAT1 can modulate CPC proliferation and migration potential through the miR-125/JMJD6 axis in hypoxia. Our finding provided a new regulatory mechanism for CPC proliferation in hypoxia, which provided a new target for MI-induced HF therapy.
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Affiliation(s)
- Linlin Li
- College of Life Sciences, Peking University, Beijing, 100871, China
| | - Qiuyun Wang
- Department of Cardiac Surgery, Ruijin Hospital, No. 197, Ruijin Er Road, Shanghai, 200025, China
| | - Zhize Yuan
- Department of Cardiac Surgery, Ruijin Hospital, No. 197, Ruijin Er Road, Shanghai, 200025, China
| | - Anqing Chen
- Department of Cardiac Surgery, Ruijin Hospital, No. 197, Ruijin Er Road, Shanghai, 200025, China
| | - Zuyun Liu
- Department of Cardiac Surgery, Ruijin Hospital, No. 197, Ruijin Er Road, Shanghai, 200025, China
| | - Zhe Wang
- Department of Cardiac Surgery, Ruijin Hospital, No. 197, Ruijin Er Road, Shanghai, 200025, China.
| | - Haiqing Li
- Department of Cardiac Surgery, Ruijin Hospital, No. 197, Ruijin Er Road, Shanghai, 200025, China.
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75
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Long Noncoding RNAs: New Players in Ischaemia-Reperfusion Injury. Heart Lung Circ 2018; 27:322-332. [DOI: 10.1016/j.hlc.2017.09.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 09/08/2017] [Accepted: 09/19/2017] [Indexed: 12/22/2022]
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76
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Yang L, Xu F, Zhang M, Shang XY, Xie X, Fu T, Li JP, Li HL. Role of LncRNA MALAT-1 in hypoxia-induced PC12 cell injury via regulating p38MAPK signaling pathway. Neurosci Lett 2018; 670:41-47. [PMID: 29360503 DOI: 10.1016/j.neulet.2018.01.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/18/2018] [Accepted: 01/18/2018] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To investigate the role of LncRNA MALAT-1 in hypoxia-induced cell injury. METHODS Pheochromocytoma-12 (PC12) cells were divided into seven groups: Control group, Hypoxia group (Cells treated with CoCl2), MALAT-1 group (Hypoxic cells treated with MALAT-1), NC group (Hypoxic cells treated with empty plasmid), MALAT-1 siRNA group (Hypoxic cells treated with siRNA MALAT-1), SB203580 group (Hypoxic cells treated with p38MAPK inhibitor), and MALAT-1 + SB20358 group. The content of reactive oxygen species (ROS), malondialdehyde (MDA), super oxide dismutase (SOD) and lactate dehydrogenase (LDH) was determined. Cell viability was detected by MTT assay. Apoptotic cells were observed by Hoechst 33258 and TUNEL staining assay. Mitochondrial membrane potential (MMP) was measured using JC1 vital dye. RESULTS The decreased cell viability and increased expressions of MALAT-1 and p-p38 were observed in hypoxic PC12 cells time-dependently (P < 0.05). Besides, hypoxic PC12 cells had an elevation in p-p38, ROS, MDA and LDH with the increased apoptotic cells, but a reduction in SOD and MMP, and these similar changes were more obvious in those hypoxic cells treated with MALAT-1 when compared with Controls (all P < 0.05). However, the hypoxic PC12 cells treated with SB203580 and MALAT-1 siRNA led to opposite results compared with MALAT-1 group (all P < 0.05). Importantly, SB203580 could reverse the function of MALAT-1 in aggravating the hypoxia injury of PC12 cells. CONCLUSION MALAT-1 can promote the apoptosis and oxidative stress of PC12 cells by activating p38MAPK pathway, thus aggravating the damage of PC12 cells induced by chemical hypoxia.
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Affiliation(s)
- Lin Yang
- Zunyi Medical University, Zhuhai Campus, Zhuhai, Guangdong 519041, China
| | - Fei Xu
- Department of Rehabilitation, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, China
| | - Miao Zhang
- The Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150001, Heilongjiang, China
| | - Xiao-Ying Shang
- Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, China
| | - Xin Xie
- Department of Rehabilitation, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, China
| | - Tao Fu
- Department of Rehabilitation, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, China
| | - Jian-Ping Li
- Zunyi Medical University, Zhuhai Campus, Zhuhai, Guangdong 519041, China
| | - Hong-Lin Li
- Department of Rehabilitation, The Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, No. 411, Guogeli Street, Nangang District, Harbin, Heilongjiang 150001, China.
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77
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LncRNA MALAT1: A potential regulator of autophagy in myocardial ischemia-reperfusion injury. Int J Cardiol 2017; 247:25. [DOI: 10.1016/j.ijcard.2017.04.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 04/03/2017] [Indexed: 11/18/2022]
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78
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Zhang X, Hamblin MH, Yin KJ. The long noncoding RNA Malat1: Its physiological and pathophysiological functions. RNA Biol 2017; 14:1705-1714. [PMID: 28837398 DOI: 10.1080/15476286.2017.1358347] [Citation(s) in RCA: 323] [Impact Index Per Article: 46.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Recent studies suggest that in humans, DNA sequences responsible for protein coding regions comprise only 2% of the total genome. The rest of the transcripts result in RNA transcripts without protein-coding ability, including long noncoding RNAs (lncRNAs). Different from most members in the lncRNA family, the metastasis-associated lung adenocarcinoma transcript 1 (Malat1) is abundantly expressed and evolutionarily conserved throughout various mammalian species. Malat1 is one of the first identified lncRNAs associated with human disease, and cumulative studies have indicated that Malat1 plays critical roles in the development and progression of various cancers. Malat1 is also actively involved in various physiologic processes, including alternative splicing, epigenetic modification of gene expression, synapse formation, and myogenesis. Furthermore, extensive evidences show that Malat1 plays pivotal roles in multiple pathological conditions as well. In this review, we will summarize latest findings related to the physiologic and pathophysiological processes of Malat1 and discuss its therapeutic potentials.
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Affiliation(s)
- Xuejing Zhang
- a Pittsburgh Institute of Brain Disorders & Recovery , Department of Neurology , University of Pittsburgh School of Medicine , Pittsburgh , PA USA
| | - Milton H Hamblin
- b Department of Pharmacology , Tulane University School of Medicine , New Orleans , LA , USA
| | - Ke-Jie Yin
- a Pittsburgh Institute of Brain Disorders & Recovery , Department of Neurology , University of Pittsburgh School of Medicine , Pittsburgh , PA USA
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Huang X, Gao Y, Qin J, Lu S. The mechanism of long non-coding RNA MEG3 for hepatic ischemia-reperfusion: Mediated by miR-34a/Nrf2 signaling pathway. J Cell Biochem 2017; 119:1163-1172. [PMID: 28708282 DOI: 10.1002/jcb.26286] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 07/13/2017] [Indexed: 12/19/2022]
Abstract
To investigate the function of MEG3 in hepatic ischemia-reperfusion (HIR) progress, involving its association with the level of miR-34a during hypoxia-induced hypoxia re-oxygenation (H/R) in vitro. HIR mice model in vivo was established. MEG3, miR-34a expression, along with Nrf2 mRNA and protein level were detected in tissues and cells. Serum biochemical parameters (ALT and AST) were assessed in vivo. A potential binding region between MEG3 and miR34a was confirmed by luciferase assays. Hepatic cells HL7702 were subjected to hypoxia treatment in vitro for functional studies, including TUNEL-positive cells detection and ROS analysis. MEG3, Nrf2 expression was significantly down-regulated in infarction lesion from HIR mice, as opposed to increased miR-34a production, while similar results were also observed in H/R HL7702 cells, while the above effects were reversed by MEG3 over-expression. By using bioinformatics study and RNA pull down combined with luciferase assays, we demonstrated that MEG3 functioned as a competing endogenous RNA (ceRNA) for miR-34a, and there was reciprocal repression between MEG3 and miR-34a in an Argonaute 2-dependent manner. Functional studies demonstrated that MEG3 showed positive regulation on TUNEL-positive cells and ROS level. Further in vivo study confirmed that MEG3 over-expression could improve hepatic function of HIR mice, and markedly decreased the expression of serum ALT and AST. MEG3 protected hepatocytes from HIR injury through down-regulating miR-34a expression, which could add our understanding of the molecular mechanisms in HIR injury.
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Affiliation(s)
- Xinli Huang
- Center of Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, The Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu, China
| | - Yun Gao
- Center of Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, The Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu, China
| | - Jianjie Qin
- Center of Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, The Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu, China
| | - Sen Lu
- Center of Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, The Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu, China
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