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Zhang W, Zhang M, Ma J, Yao Y, Jiang Y, Huo Q, Jin S, Ji D, Zhao Y, Liu X, Sun H, Xu C, Zhang R. MicroRNA-15b promotes cardiac ischemia injury by the inhibition of Mitofusin 2/PERK pathway. Biochem Pharmacol 2024:116372. [PMID: 38885773 DOI: 10.1016/j.bcp.2024.116372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/05/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
MicroRNA and mitofusin-2 (Mfn2) play an important role in the myocardial apoptosis induced by acute myocardial infarction (AMI). However, the target relationship and underlying mechanism associated with interorganelle interaction between endoplasmic reticulum (ER) and mitochondria under ischemic condition is not completely clear. MI-induced injury, Mfn2 expression, Mfn2-mediated mitochondrial function and ER stress, and target regulation by miRNA-15b (miR-15b) were evaluated by animal MI and cellular hypoxic models with advanced molecular techniques. The results confirmed that Mfn2 was down-regulated and miR-15b was up-regulated upon the target binding profile under ischemic/hypoxic condition. Our data showed that miR-15b caused cardiac apoptotic injury that was reversed by rAAV9-anti-miR-15b or AMO-15b. The damage effect of miR-15b on Mfn2 expression and mitochondrial function was observed and rescued by rAAV9-anti-miR-15b or AMO-15b. The targeted regulation of miR-15b on Mfn2 was verified by luciferase reporter and microRNA-masking. Importantly, miR-15b-mediated Mfn2 suppression activated PERK/CHOP pathway, by which leads to ER stress and mitochondrial dysfunction, and cardiac apoptosis eventually. In conclusion, our research, for the first time, revealed the missing molecular link in Mfn2 and apoptosis and elucidated that pro-apoptotic miR-15b plays crucial roles during the pathogenesis of AMI through down-regulation of Mfn2 and activation of PERK-mediated ER stress. These findings may provide an opportunity to develop new therapies for prophylaxis and treatment of ischemic heart disease.
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Affiliation(s)
- Wenhao Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Mingyu Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Jiao Ma
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Yuan Yao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Yuan Jiang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Qingji Huo
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Saidi Jin
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Dongni Ji
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Yilin Zhao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Xinqi Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Hao Sun
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Chaoqian Xu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China.
| | - Rong Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China.
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2
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Xiao Z, Liang J, Huang R, Chen D, Mei J, Deng J, Wang Z, Li L, Li Z, Xia H, Yang Y, Huang Y. Inhibition of miR-143-3p Restores Blood-Testis Barrier Function and Ameliorates Sertoli Cell Senescence. Cells 2024; 13:313. [PMID: 38391926 PMCID: PMC10887369 DOI: 10.3390/cells13040313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/24/2024] Open
Abstract
Due to the increasing trend of delayed childbirth, the age-related decline in male reproductive function has become a widely recognized issue. Sertoli cells (SCs) play a vital role in creating the necessary microenvironment for spermatogenesis in the testis. However, the mechanism underlying Sertoli cell aging is still unclear. In this study, senescent Sertoli cells showed a substantial upregulation of miR-143-3p expression. miR-143-3p was found to limit Sertoli cell proliferation, promote cellular senescence, and cause blood-testis barrier (BTB) dysfunction by targeting ubiquitin-conjugating enzyme E2 E3 (UBE2E3). Additionally, the TGF-β receptor inhibitor SB431542 showed potential in alleviating age-related BTB dysfunction, rescuing testicular atrophy, and reversing the reduction in germ cell numbers by negatively regulating miR-143-3p. These findings clarified the regulatory pathways underlying Sertoli cell senescence and suggested a promising therapeutic approach to restore BTB function, alleviate Sertoli cell senescence, and improve reproductive outcomes for individuals facing fertility challenges.
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Affiliation(s)
- Ziyan Xiao
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Jinlian Liang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Rufei Huang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Derong Chen
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Jiaxin Mei
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Jingxian Deng
- Department of Pharmacology, Jinan University, Guangzhou 510632, China;
| | - Zhaoyang Wang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Lu Li
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Ziyi Li
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Huan Xia
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
| | - Yan Yang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
| | - Yadong Huang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China; (Z.X.); (J.L.); (R.H.); (D.C.); (J.M.); (Z.W.); (L.L.); (Z.L.); (H.X.)
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
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Ryu Y, Hwang JS, Bo Noh K, Park SH, Seo JH, Shin YJ. Adipose Mesenchymal Stem Cell-Derived Exosomes Promote the Regeneration of Corneal Endothelium Through Ameliorating Senescence. Invest Ophthalmol Vis Sci 2023; 64:29. [PMID: 37850944 PMCID: PMC10593138 DOI: 10.1167/iovs.64.13.29] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 09/14/2023] [Indexed: 10/19/2023] Open
Abstract
Purpose Human corneal endothelial cells (hCECs) have been considered unable to regenerate in vivo, resulting in corneal decompensation after significant loss of hCECs. adipose-derived mesenchymal stem cell (ASC)-derived exosomes can regenerate tissues and organs. In this study, we investigated whether ASC-derived exosomes could protect and regenerate CECs. Methods We performed cell viability and cell-cycle analyses to evaluate the effect of ASC-derived exosomes on the regeneration capacity of cultured hCECs. Transforming growth factor-β (TGF-β) and hydrogen peroxide (H2O2) were used to induce biological stress in CECs. The effect of ASC-derived exosomes on CECs was investigated in vivo. ASC-derived exosomes were introduced into rat CECs using electroporation, and rat corneas were injured using cryoinjury. Next-generation sequencing analysis was performed to compare the differentially expressed microRNAs (miRNAs) between ASC-derived and hCEC-derived exosomes. Results ASC-derived exosomes induced CEC proliferation and suppressed TGF-β- or H2O2-induced oxidative stress and senescence. ASC-derived exosomes protect hCECs against TGF-β- or H2O2-induced endothelial-mesenchymal transition and mitophagy. In an in vivo study, ASC-derived exosomes promoted wound healing of rat CECs and protected the corneal endothelium against cryoinjury-induced corneal endothelium damage. Next-generation sequencing analysis revealed differentially expressed miRNAs for ASC-derived and hCEC-derived exosomes. They are involved in lysine degradation, adherens junction, the TGF-β signaling pathway, the p53 signaling pathway, the Hippo signaling pathway, the forkhead box O (FoxO) signaling pathway, regulation of actin cytoskeleton, and RNA degradation based on Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. Conclusions ASC-derived exosomes promoted wound healing and regeneration of endothelial cells by inducing a shift in the cell cycle and suppressing senescence and autophagy.
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Affiliation(s)
- Yunkyoung Ryu
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Jin Sun Hwang
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Kyung Bo Noh
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Se Hie Park
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Je Hyun Seo
- Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul, Republic of Korea
| | - Young Joo Shin
- Department of Ophthalmology, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
- Hallym BioEyeTech Research Center, Hallym University College of Medicine, Seoul, Republic of Korea
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4
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Lu CH, Chen DX, Dong K, Wu YJ, Na N, Wen H, Hu YS, Liang YY, Wu SY, Lin BY, Huang F, Zeng ZY. Inhibition of miR-143-3p alleviates myocardial ischemia reperfusion injury via limiting mitochondria-mediated apoptosis. Biol Chem 2023; 404:619-631. [PMID: 36780323 DOI: 10.1515/hsz-2022-0334] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 01/13/2023] [Indexed: 02/14/2023]
Abstract
MicroRNA (miR)-143-3p is a potential regulatory molecule in myocardial ischemia/reperfusion injury (MI/RI), wherein its expression and pathological effects remains controversial. Thus, a mouse MI/RI and cell hypoxia/reoxygenation (H/R) models were built for clarifying the miR-143-3p's role in MI/RI. Following myocardial ischemia for 30 min, mice underwent reperfusion for 3, 6, 12 and 24 h. It was found miR-143-3p increased in the ischemic heart tissue over time after reperfusion. Cardiomyocytes transfected with miR-143-3p were more susceptible to apoptosis. Mechanistically, miR-143-3p targeted B cell lymphoma 2 (bcl-2). And miR-143-3p inhibition reduced cardiomyocytes apoptosis upon H/R, whereas it was reversed by a specific bcl-2 inhibitor ABT-737. Of note, miR-143-3p inhibition upregulated bcl-2 with better mitochondrial membrane potential (Δψm), reduced cytoplasmic cytochrome c (cyto-c) and caspase proteins, and minimized infarction area in mice upon I/R. Collectively, inhibition of miR-143-3p might alleviate MI/RI via targeting bcl-2 to limit mitochondria-mediated apoptosis. To our knowledge, this study further clarifies the miR-143-3p's pathological role in the early stages of MI/RI, and inhibiting miR-143-3p could be an effective treatment for ischemic myocardial disease.
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Affiliation(s)
- Chuang-Hong Lu
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - De-Xin Chen
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Kun Dong
- Department of Organ Transplantation, The First Affiliated Hospital of Guangxi Medical University, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Yun-Jiao Wu
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Na Na
- Department of Chemistry, Scripps Research Institute, No.10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Hong Wen
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Yao-Shi Hu
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Yuan-Ying Liang
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Si-Yi Wu
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Bei-You Lin
- Department of Cardiology, Zhuhai City People's Hospital, No.79 Kangning Road, Zhuhai 519050, Guangdong, China
| | - Feng Huang
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Zhi-Yu Zeng
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, No.6 Shuangyong Road, Nanning 530021, Guangxi, China
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Mishra S, Sarkar S, Pandey A, Yadav SK, Negi R, Yadav S, Pant AB. Crosstalk Between miRNA and Protein Expression Profiles in Nitrate-Exposed Brain Cells. Mol Neurobiol 2023; 60:3855-3872. [DOI: 10.1007/s12035-023-03316-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/09/2023] [Indexed: 03/29/2023]
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Mathis BJ, Kato H, Hiramatsu Y. Induction of Cardiac Pathology: Endogenous versus Exogenous Nrf2 Upregulation. Cells 2022; 11:cells11233855. [PMID: 36497112 PMCID: PMC9736027 DOI: 10.3390/cells11233855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022] Open
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2) is a master regulator of the endogenous antioxidant response to reactive oxygen species as well as a controller of Phase II detoxification in response to xenobiotics. This amenity to specific external manipulation exploits the binding affinity of Nrf2 for its constitutive repressor and degradation facilitator Kelch-like erythroid cell-derived protein with CNC homology-associated protein 1 (Keap1). Derived from both natural and synthesized origins, these compounds have been extensively tested without definitive beneficial results. Unfortunately, multiple terminated trials have shown a negative side to Nrf2 with regard to cardiac pathologies while animal-based studies have demonstrated cardiomyocyte hypertrophy and heart failure after chronic Nrf2 upregulation. Putatively based on autophagic control of Nrf2 activity-modulating upstream factors, new evidence of miRNA involvement has added complexity to this mechanism. What follows is an extensive survey of Nrf2-regulating exogenous compounds that may promote cardiomyopathy, clinical trial evidence, and a comparison to exercise-induced factors that also upregulate Nrf2 while preventing cardiac pathologies.
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Affiliation(s)
- Bryan J. Mathis
- International Medical Center, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan
- Correspondence: ; Tel.: +81-29-853-3004
| | - Hideyuki Kato
- Department of Cardiovascular Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Ibaraki, Japan
| | - Yuji Hiramatsu
- International Medical Center, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan
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Majka M, Kleibert M, Wojciechowska M. Impact of the Main Cardiovascular Risk Factors on Plasma Extracellular Vesicles and Their Influence on the Heart's Vulnerability to Ischemia-Reperfusion Injury. Cells 2021; 10:3331. [PMID: 34943838 PMCID: PMC8699798 DOI: 10.3390/cells10123331] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/20/2021] [Accepted: 11/22/2021] [Indexed: 12/12/2022] Open
Abstract
The majority of cardiovascular deaths are associated with acute coronary syndrome, especially ST-elevation myocardial infarction. Therapeutic reperfusion alone can contribute up to 40 percent of total infarct size following coronary artery occlusion, which is called ischemia-reperfusion injury (IRI). Its size depends on many factors, including the main risk factors of cardiovascular mortality, such as age, sex, systolic blood pressure, smoking, and total cholesterol level as well as obesity, diabetes, and physical effort. Extracellular vesicles (EVs) are membrane-coated particles released by every type of cell, which can carry content that affects the functioning of other tissues. Their role is essential in the communication between healthy and dysfunctional cells. In this article, data on the variability of the content of EVs in patients with the most prevalent cardiovascular risk factors is presented, and their influence on IRI is discussed.
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Affiliation(s)
- Miłosz Majka
- Laboratory of Centre for Preclinical Research, Department of Experimental and Clinical Physiology, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland; (M.M.); (M.K.)
| | - Marcin Kleibert
- Laboratory of Centre for Preclinical Research, Department of Experimental and Clinical Physiology, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland; (M.M.); (M.K.)
| | - Małgorzata Wojciechowska
- Laboratory of Centre for Preclinical Research, Department of Experimental and Clinical Physiology, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland; (M.M.); (M.K.)
- Invasive Cardiology Unit, Independent Public Specialist Western Hospital John Paul II, Daleka 11, 05-825 Grodzisk Mazowiecki, Poland
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8
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Pignataro G. Emerging Role of microRNAs in Stroke Protection Elicited by Remote Postconditioning. Front Neurol 2021; 12:748709. [PMID: 34744984 PMCID: PMC8567963 DOI: 10.3389/fneur.2021.748709] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/16/2021] [Indexed: 12/27/2022] Open
Abstract
Remote ischemic conditioning (RIC) represents an innovative and attractive neuroprotective approach in brain ischemia. The purpose of this intervention is to activate endogenous tolerance mechanisms by inflicting a subliminal ischemia injury to the limbs, or to another “remote” region, leading to a protective systemic response against ischemic brain injury. Among the multiple candidates that have been proposed as putative mediators of the protective effect generated by the subthreshold peripheral ischemic insult, it has been hypothesized that microRNAs may play a vital role in the infarct-sparing effect of RIC. The effect of miRNAs can be exploited at different levels: (1) as transducers of protective messages to the brain or (2) as effectors of brain protection. The purpose of the present review is to summarize the most recent evidence supporting the involvement of microRNAs in brain protection elicited by remote conditioning, highlighting potential and pitfalls in their exploitation as diagnostic and therapeutic tools. The understanding of these processes could help provide light on the molecular pathways involved in brain protection for the future development of miRNA-based theranostic agents in stroke.
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Affiliation(s)
- Giuseppe Pignataro
- Division of Pharmacology, Department of Neuroscience, School of Medicine, "Federico II" University of Naples, Naples, Italy
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9
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Yang M, Wang X, Wang T. Regulation of Mitochondrial Function by Noncoding RNAs in Heart Failure and Its Application in Diagnosis and Treatment. J Cardiovasc Pharmacol 2021; 78:377-387. [PMID: 34132686 DOI: 10.1097/fjc.0000000000001081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 05/26/2021] [Indexed: 10/21/2022]
Abstract
ABSTRACT Heart failure (HF) is the terminal stage of multiple cardiovascular diseases. However, the pathogenesis of HF remains unclear and prompt; appropriate diagnosis and treatment of HF are crucial. Cardiomyocytes isolated from HF subjects frequently present mitochondrial impairment and dysfunction. Many studies have suggested that the regulation by noncoding RNAs (ncRNAs) of mitochondria can affect the occurrence and progression of HF. The regulation by ncRNAs of myocardial mitochondria during HF and the recent applications of ncRNAs in the diagnosis and treatment of HF are summarized in this review that is intended to gain keen insights into the mechanisms of HF and more effective treatments.
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Affiliation(s)
- Miaomiao Yang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
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10
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Liu B, Wang B, Zhang X, Lock R, Nash T, Vunjak-Novakovic G. Cell type-specific microRNA therapies for myocardial infarction. Sci Transl Med 2021; 13:13/580/eabd0914. [PMID: 33568517 DOI: 10.1126/scitranslmed.abd0914] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 01/19/2021] [Indexed: 12/13/2022]
Abstract
Current interventions fail to recover injured myocardium after infarction and prompt the need for development of cardioprotective strategies. Of increasing interest is the therapeutic use of microRNAs to control gene expression through specific targeting of mRNAs. In this Review, we discuss current microRNA-based therapeutic strategies, describing the outcomes and limitations of key microRNAs with a focus on target cell types and molecular pathways. Last, we offer a perspective on the outlook of microRNA therapies for myocardial infarction, highlighting the outstanding challenges and emerging strategies.
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Affiliation(s)
- Bohao Liu
- Department of Medicine, Columbia University, New York, NY 10032, USA.,Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Bryan Wang
- Department of Medicine, Columbia University, New York, NY 10032, USA.,Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Xiaokan Zhang
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Roberta Lock
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Trevor Nash
- Department of Medicine, Columbia University, New York, NY 10032, USA.,Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Gordana Vunjak-Novakovic
- Department of Medicine, Columbia University, New York, NY 10032, USA. .,Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
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11
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Ma WY, Song RJ, Xu BB, Xu Y, Wang XX, Sun HY, Li SN, Liu SZ, Yu MX, Yang F, Ye DY, Gong R, Han ZB, Yu Y, Bamba D, Wang N, Pan ZW, Cai BZ. Melatonin promotes cardiomyocyte proliferation and heart repair in mice with myocardial infarction via miR-143-3p/Yap/Ctnnd1 signaling pathway. Acta Pharmacol Sin 2021; 42:921-931. [PMID: 32839503 PMCID: PMC8149448 DOI: 10.1038/s41401-020-0495-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/29/2020] [Indexed: 01/05/2023] Open
Abstract
The neonatal heart possesses the ability to proliferate and the capacity to regenerate after injury; however, the mechanisms underlying these processes are not fully understood. Melatonin has been shown to protect the heart against myocardial injury through mitigating oxidative stress, reducing apoptosis, inhibiting mitochondrial fission, etc. In this study, we investigated whether melatonin regulated cardiomyocyte proliferation and promoted cardiac repair in mice with myocardial infarction (MI), which was induced by ligation of the left anterior descending coronary artery. We showed that melatonin administration significantly improved the cardiac functions accompanied by markedly enhanced cardiomyocyte proliferation in MI mice. In neonatal mouse cardiomyocytes, treatment with melatonin (1 μM) greatly suppressed miR-143-3p levels. Silencing of miR-143-3p stimulated cardiomyocytes to re-enter the cell cycle. On the contrary, overexpression of miR-143-3p inhibited the mitosis of cardiomyocytes and abrogated cardiomyocyte mitosis induced by exposure to melatonin. Moreover, Yap and Ctnnd1 were identified as the target genes of miR-143-3p. In cardiomyocytes, inhibition of miR-143-3p increased the protein expression of Yap and Ctnnd1. Melatonin treatment also enhanced Yap and Ctnnd1 protein levels. Furthermore, Yap siRNA and Ctnnd1 siRNA attenuated melatonin-induced cell cycle re-entry of cardiomyocytes. We showed that the effect of melatonin on cardiomyocyte proliferation and cardiac regeneration was impeded by the melatonin receptor inhibitor luzindole. Silencing miR-143-3p abrogated the inhibition of luzindole on cardiomyocyte proliferation. In addition, both MT1 and MT2 siRNA could cancel the beneficial effects of melatonin on cardiomyocyte proliferation. Collectively, the results suggest that melatonin induces cardiomyocyte proliferation and heart regeneration after MI by regulating the miR-143-3p/Yap/Ctnnd1 signaling pathway, providing a new therapeutic strategy for cardiac regeneration.
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Affiliation(s)
- Wen-Ya Ma
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Rui-Jie Song
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Bin-Bin Xu
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Yan Xu
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Xiu-Xiu Wang
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Hong-Yue Sun
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Shuai-Nan Li
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Shen-Zhen Liu
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Mei-Xi Yu
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Fan Yang
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Dan-Yu Ye
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Rui Gong
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Zhen-Bo Han
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Ying Yu
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Djibril Bamba
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Ning Wang
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Zhen-Wei Pan
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China
| | - Ben-Zhi Cai
- Department of Pharmacy at The Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), Harbin Medical University, Harbin, 150086, China.
- Institute of Clinical Pharmacy, the Heilongjiang Key Laboratory of Drug Research, Harbin Medical University, Harbin, 150086, China.
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, Harbin, 150086, China.
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12
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Zhang GQ, Wang SQ, Chen Y, Fu LY, Xu YN, Li L, Tao L, Shen XC. MicroRNAs Regulating Mitochondrial Function in Cardiac Diseases. Front Pharmacol 2021; 12:663322. [PMID: 34122082 PMCID: PMC8194257 DOI: 10.3389/fphar.2021.663322] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/23/2021] [Indexed: 12/21/2022] Open
Abstract
Mitochondria are the key organelles that supply cellular energy. As the most active organ in the body, the energy required to maintain the mechanical function of the heart requires a high quantity of high-quality mitochondria in cardiomyocytes. MicroRNAs (miRNAs) are single-stranded noncoding RNAs, approximately 22 nt in length, which play key roles in mediating post-transcriptional gene silencing. Numerous studies have confirmed that miRNAs can participate in the occurrence and development of cardiac diseases by regulating mitochondrial function-related genes and signaling pathways. Therefore, elucidating the crosstalk that occurs between miRNAs and mitochondria is important for the prevention and treatment of cardiac diseases. In this review, we discuss the biogenesis of miRNAs, the miRNA-mediated regulation of major genes involved in the maintenance of mitochondrial function, and the effects of miRNAs on mitochondrial function in cardiac diseases in order to provide a theoretical basis for the clinical prevention and treatment of cardiac disease and the development of new drugs.
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Affiliation(s)
- Guang-Qiong Zhang
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Sheng-Quan Wang
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Yan Chen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Ling-Yun Fu
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Yi-Ni Xu
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Ling Li
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Ling Tao
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Xiang-Chun Shen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China.,The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
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13
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Diao L, Zhang Q. Transfer of lncRNA UCA1 by hUCMSCs-derived exosomes protects against hypoxia/reoxygenation injury through impairing miR-143-targeted degradation of Bcl-2. Aging (Albany NY) 2021; 13:5967-5985. [PMID: 33591946 PMCID: PMC7950245 DOI: 10.18632/aging.202520] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 10/26/2020] [Indexed: 12/19/2022]
Abstract
Ischemia results in neuronal damage via alterations in gene transcription and protein expression. Long noncoding RNAs (LncRNAs) are pivotal in the regulation of target protein expression in hypoxia/reoxygenation (H/R). In this study, we observed the function of exosomes-carried lncRNA UCA1 in H/R-induced injury of cardiac microvascular endothelial cells (CMECs). In H/R cell model, CMECs were co-cultured with human umbilical cord mesenchymal stem cell-derived exosomes (hUCMSC-ex). The loss-of-function experiments were conducted to assess the effect of lncRNA UCA1 on H/R injury by assessing the biological behaviors of CMECs. The relationship among lncRNA UCA1, miR-143 and Bcl-2 were verified. An ischemia-reperfusion (I/R) rat model was established. Then hUCMSC-ex was injected into I/R rats to identify its effects on apoptosis and autophagy. Functional rescue experiments were performed to verify the sponge system. In vitro and in vivo experiments showed that hUCMSC-ex protected I/R rats and H/R CMECs against injury. Silencing UCA1 in hUCMSC-ex or miR-143 overexpression aggravated H/R injury in CMECs. LncRNA UCA1 competitively bound to miR-143 to upregulate Bcl-2. And hUCMSCs-ex/si-UCA1+inhi-miR-143 treatment protected CMECs against H/R injury and inhibited hyperautophagy. Together, hUCMSC-ex-derived lncRNA UCA1 alleviates H/R injury through the miR-143/Bcl-2/Beclin-1 axis. Hence, this study highlights a stem cell-based approach against I/R injury.
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Affiliation(s)
- Liwei Diao
- Department of Thoracic and Cardiovascular Surgery, University of Chinese Academy of Sciences Shenzhen Hospital, Shenzhen 518000, Guangdong, P.R. China.,Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, P.R. China
| | - Qinghua Zhang
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, P.R. China
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14
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Colella M, Cuomo D, Peluso T, Falanga I, Mallardo M, De Felice M, Ambrosino C. Ovarian Aging: Role of Pituitary-Ovarian Axis Hormones and ncRNAs in Regulating Ovarian Mitochondrial Activity. Front Endocrinol (Lausanne) 2021; 12:791071. [PMID: 34975760 PMCID: PMC8716494 DOI: 10.3389/fendo.2021.791071] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/29/2021] [Indexed: 12/17/2022] Open
Abstract
The number of mitochondria in the oocyte along with their functions (e.g., energy production, scavenger activity) decline with age progression. Such multifaceted functions support several processes during oocyte maturation, ranging from energy supply to synthesis of the steroid hormones. Hence, it is hardly surprising that their impairment has been reported in both physiological and premature ovarian aging, wherein they are crucial players in the apoptotic processes that arise in aged ovaries. In any form, ovarian aging implies the progressive damage of the mitochondrial structure and activities as regards to ovarian germ and somatic cells. The imbalance in the circulating hormones and peptides (e.g., gonadotropins, estrogens, AMH, activins, and inhibins), active along the pituitary-ovarian axis, represents the biochemical sign of ovarian aging. Despite the progress accomplished in determining the key role of the mitochondria in preserving ovarian follicular number and health, their modulation by the hormonal signalling pathways involved in ovarian aging has been poorly and randomly explored. Yet characterizing this mechanism is pivotal to molecularly define the implication of mitochondrial dysfunction in physiological and premature ovarian aging, respectively. However, it is fairly difficult considering that the pathways associated with ovarian aging might affect mitochondria directly or by altering the activity, stability and localization of proteins controlling mitochondrial dynamics and functions, either unbalancing other cellular mediators, released by the mitochondria, such as non-coding RNAs (ncRNAs). We will focus on the mitochondrial ncRNAs (i.e., mitomiRs and mtlncRNAs), that retranslocate from the mitochondria to the nucleus, as active players in aging and describe their role in the nuclear-mitochondrial crosstalk and its modulation by the pituitary-ovarian hormone dependent pathways. In this review, we will illustrate mitochondria as targets of the signaling pathways dependent on hormones and peptides active along the pituitary/ovarian axis and as transducers, with a particular focus on the molecules retrieved in the mitochondria, mainly ncRNAs. Given their regulatory function in cellular activities we propose them as potential diagnostic markers and/or therapeutic targets.
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Affiliation(s)
- Marco Colella
- Biogem, Istituto di Biologia e Genetica Molecolare, Ariano Irpino, Italy
- Department of Science and Technology, University of Sannio, Benevento, Italy
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Danila Cuomo
- Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University, College Station, TX, United States
| | - Teresa Peluso
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Ilaria Falanga
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Massimo Mallardo
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples “Federico II”, Naples, Italy
| | - Mario De Felice
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples “Federico II”, Naples, Italy
- Istituto per l’ endocrinologia e l’oncologia “Gaetano Salvatore” (IEOS)-Centro Nazionale delle Ricerche (CNR), Naples, Italy
| | - Concetta Ambrosino
- Biogem, Istituto di Biologia e Genetica Molecolare, Ariano Irpino, Italy
- Department of Science and Technology, University of Sannio, Benevento, Italy
- Istituto per l’ endocrinologia e l’oncologia “Gaetano Salvatore” (IEOS)-Centro Nazionale delle Ricerche (CNR), Naples, Italy
- *Correspondence: Concetta Ambrosino,
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15
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Vinciguerra A, Cepparulo P, Anzilotti S, Cuomo O, Valsecchi V, Amoroso S, Annunziato L, Pignataro G. Remote postconditioning ameliorates stroke damage by preventing let-7a and miR-143 up-regulation. Theranostics 2020; 10:12174-12188. [PMID: 33204336 PMCID: PMC7667695 DOI: 10.7150/thno.48135] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 09/29/2020] [Indexed: 01/03/2023] Open
Abstract
Remote limb ischemic postconditioning (RLIP) is a well-established neuroprotective strategy able to protect the brain from a previous harmful ischemic insult through a sub-lethal occlusion of the femoral artery. Neural and humoral mechanisms have been proposed as mediators required to transmit the peripheral signal from limb to brain. Moreover, different studies suggest that protection observed at brain level is associated to a general genetic reprogramming involving also microRNAs (miRNAs) intervention. Methods: Brain ischemia was induced in male rats by transient occlusion of the middle cerebral artery (tMCAO), whereas RLIP was achieved by one cycle of temporary occlusion of the ipsilateral femoral artery after tMCAO. The expression profile of 810 miRNAs was evaluated in ischemic brain samples from rats subjected either to tMCAO or to RLIP. Among all analyzed miRNAs, there were four whose expression were upregulated after stroke and returned to basal level after RLIP, thus suggesting a possible involvement in RLIP-induced neuroprotection. These selected miRNAs were intracerebroventricularly infused in rats subjected to remote ischemic postconditioning, and their effect was evaluated in terms of brain damage, neurological deficit scores and expression of putative targets. Results: Twenty-one miRNAs, whose expression was significantly affected by tMCAO and by tMCAO plus RLIP, were selected based on microarray microfluidic profiling. Our data showed that: (1) stroke induced an up-regulation of let-7a and miR-143 (2) these two miRNAs were involved in the protective effects induced by RLIP and (3) HIF1-α contributes to their protective effect. Indeed, their expression was reduced after RLIP and the exogenous intracerebroventricularly infusion of let-7a and miR-143 mimics prevented neuroprotection and HIF1-α overexpression induced by RLIP. Conclusions: Prevention of cerebral let-7a and miR-143 overexpression induced by brain ischemia emerges as new potential strategy in stroke intervention.
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16
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Non-coding RNAs and Ischemic Cardiovascular Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020. [PMID: 32285417 DOI: 10.1007/978-981-15-1671-9_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
The Ischemic Heart Disease (IHD) is considered a clinical condition characterized by myocardial ischemia causing an imbalance between myocardial blood supply and demand, leading to morbidity and mortality across the worldwide. Prompt diagnostic and prognostic represents key factors for the treatment and reduction of the mortality rate. Therefore, one of the newest frontiers in cardiovascular research is related to non-coding RNAs (ncRNAs), which prompted a huge interest in exploring ncRNAs candidates for utilization as potential therapeutic targets for diagnostic and prognostic and/or biomarkers in IHD. However, there are undoubtedly many more functional ncRNAs yet to be discovered and characterized. Here we will discuss our current knowledge and we will provide insight on the roles and effects elicited by some ncRNAs related to IHD.
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17
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Melatonin-Mediated Pak2 Activation Reduces Cardiomyocyte Death Through Suppressing Hypoxia Reoxygenation Injury-Induced Endoplasmic Reticulum Stress. J Cardiovasc Pharmacol 2020; 74:20-29. [PMID: 31274839 DOI: 10.1097/fjc.0000000000000678] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cardiac reperfusion injury has been found to be associated with endoplasmic reticulum (ER) stress. Recently, p21-activated kinase 2 (Pak2) has been identified as a primary mediator of ER stress in chronic myocardial injury. Melatonin, a biological clock-related hormone, has been demonstrated to attenuate heart reperfusion burden by modulating ER stress and mitochondrial function. The aim of our study was to explore whether reperfusion-induced ER stress is modulated by melatonin through Pak2. Hypoxia reoxygenation (HR) was used in vitro to mimic reperfusion injury in cardiomyocytes. ER stress, oxidative stress, calcium overload, and cell death were measured through Western blotting, enzyme-linked immunosorbent assay, quantitative polymerase chain reaction, and immunofluorescence with the assistance of siRNA transfection and pathway blocker treatment. The results of our study demonstrated that HR decreased the levels of Pak2 in cardiomyocytes in vitro, and inactivation of Pak2 was associated with ER stress, oxidative stress, calcium overload, caspase-12 activation, and cardiomyocytes apoptosis in vitro. Interestingly, melatonin treatment attenuated HR-mediated ER stress, redox imbalance, calcium overload, and caspase-12-related cardiomyocytes apoptosis, and these protective effects were dependent on Pak2 upregulation. Knockdown of Pak2 abolished the beneficial actions exerted by melatonin on HR-treated cardiomyocytes in vitro. Finally, we found that melatonin reversed Pak2 expression by activating the AMPK pathway and blockade of the AMPK pathway suppressed Pak2 upregulation and cardiomyocytes survival induced by melatonin in the presence of HR stress. Overall, our study reports that the AMPK-Pak2 axis, a novel signaling pathway modulated by melatonin, sends prosurvival signals for cardiomyocytes reperfusion injury through attenuation of ER stress in vitro.
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Li XQ, Liu YK, Yi J, Dong JS, Zhang PP, Wan L, Li K. MicroRNA-143 Increases Oxidative Stress and Myocardial Cell Apoptosis in a Mouse Model of Doxorubicin-Induced Cardiac Toxicity. Med Sci Monit 2020; 26:e920394. [PMID: 32170053 PMCID: PMC7085239 DOI: 10.12659/msm.920394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 11/20/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Oxidative stress and myocardial apoptosis are features of doxorubicin-induced cardiac toxicity that can result in cardiac dysfunction. Previous studies showed that microRNA-143 (miR-143) was expressed in the myocardium and had a role in cardiac function. This study aimed to investigate the effects and possible molecular mechanisms of miR-143 on oxidative stress and myocardial cell apoptosis in a mouse model of doxorubicin-induced cardiac toxicity. MATERIAL AND METHODS Mice underwent intraperitoneal injection of doxorubicin (15 mg/kg) daily for eight days to develop the mouse model of doxorubicin-induced cardiac toxicity. Four days before doxorubicin administration, a group of mice was pretreated daily with a miR-143 antagonist (25 mg/kg/day) for four consecutive days by tail vein injection. The study included the use of a miR-143 antagomir, or anti-microRNA, an oligonucleotide that silenced endogenous microRNA (miR), and an agomir to miR-143, and also the AKT inhibitor, MK2206. Quantitative real-time polymerase chain reaction (qRT-PCR) and immunoblot analysis were used to measure mRNA and protein expression, respectively. RESULTS Doxorubicin treatment increased the expression of miR-143, which was reduced by the miR-143 antagomir. Overexpression of miR-143 increased doxorubicin-induced myocardial apoptosis and oxidative stress. The use of the miR-143 antagomir significantly activated protein kinase B (PKB) and AKT, which were reduced in the presence of the AKT inhibitor, MK2206. However, the use of the miR-143 antagomir further down-regulated AKT phosphorylation following doxorubicin treatment and increased AKT activation. CONCLUSIONS In a mouse model of doxorubicin-induced cardiac toxicity, miR-143 increased oxidative stress and myocardial cell apoptosis following doxorubicin treatment by inhibiting AKT.
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Qiu Y, Cheng R, Liang C, Yao Y, Zhang W, Zhang J, Zhang M, Li B, Xu C, Zhang R. MicroRNA-20b Promotes Cardiac Hypertrophy by the Inhibition of Mitofusin 2-Mediated Inter-organelle Ca 2+ Cross-Talk. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 19:1343-1356. [PMID: 32160705 PMCID: PMC7036712 DOI: 10.1016/j.omtn.2020.01.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/26/2019] [Accepted: 01/13/2020] [Indexed: 12/14/2022]
Abstract
MicroRNA (miRNA) and mitofusin-2 (Mfn2) are important in the development of cardiac hypertrophy, but the target relationship and mechanism associated with Ca2+ handling between SR and mitochondria under hypertrophic condition is not established. Mfn2 expression, Mfn2-mediated interorganelle Ca2+ cross-talk, and target regulation by miRNA-20b (miR-20b) were evaluated using animal/cellular hypertrophic models with state-of-the-art techniques. The results demonstrated that Mfn2 was downregulated and miR-20b was upregulated upon the target binding profile under hypertrophic condition. Our data showed that miR-20b induced cardiac hypertrophy that was reversed by recombinant adeno-associated virus vector 9 (rAAV9)-anti-miR-20b or miR-20b antisense inhibitor (AMO-20b). The deleterious action of miR-20b on Mfn2 expression/function and mitochondrial ATP synthesis was observed and reversed by rAAV9-anti-miR-20b or AMO-20b. The targeted regulation of miR-20b on Mfn2 was confirmed by luciferase reporter and miRNA-masking. Importantly, the facts that mitochondrial calcium uniporter (MCU) activation by Spermine increased the cytosolic Ca2+ into mitochondria, manifested as enhanced histamine-mediated Ca2+ release from mitochondrial, suggesting that Ca2+ reuptake/buffering capability of mitochondria to cytosolic Ca2+ is injured by miR-20b-mediated Mfn2 signaling, by which leads cytosolic Ca2+ overload and cardiac hypertrophy through Ca2+ signaling pathway. In conclusion, pro-hypertonic miR-20b plays crucial roles in cardiac hypertrophy through downregulation of Mfn2 and cytosolic Ca2+ overload by weakening the buffering capability of mitochondria.
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Affiliation(s)
- Yue Qiu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Rongchao Cheng
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Chaoqi Liang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Yuan Yao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Wenhao Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Jie Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Mingyu Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Baiyan Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Chaoqian Xu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China; Department of Pharmacology, Mudanjiang Medical University, Mudanjiang 157011, China.
| | - Rong Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, China.
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Melatonin Attenuates Cardiac Reperfusion Stress by Improving OPA1-Related Mitochondrial Fusion in a Yap-Hippo Pathway-Dependent Manner. J Cardiovasc Pharmacol 2020; 73:27-39. [PMID: 30418242 PMCID: PMC6319588 DOI: 10.1097/fjc.0000000000000626] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The role of OPA1-related mitochondrial fusion in cardiac reperfusion stress has remained elusive. The aim of our study is to explore whether melatonin alleviates cardiac ischemia-reperfusion (IR) injury by modulating OPA1-related mitochondrial fusion. We found that melatonin reduced infarct area, sustained myocardial function, and suppressed cardiomyocyte death during cardiac reperfusion stress. Biological studies have revealed that IR-inhibited mitochondrial fusion was largely reversed by melatonin through upregulated OPA1 expression. Knocking down OPA1 abrogated the protective effects of melatonin on mitochondrial energy metabolism and mitochondrial apoptosis. In addition, we also found that melatonin modified OPA1 expression through the Yap–Hippo pathway; blockade of the Yap–Hippo pathway induced cardiomyocyte death and mitochondrial damage despite treatment with melatonin. Altogether, our data demonstrated that cardiac IR injury is closely associated with defective OPA1-related mitochondrial fusion. Melatonin supplementation enhances OPA1-related mitochondrial fusion by activating the Yap–Hippo pathway, ultimately reducing cardiac reperfusion stress.
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Wang QS, Zhou J, Li X. LncRNA UCA1 protects cardiomyocytes against hypoxia/reoxygenation induced apoptosis through inhibiting miR-143/MDM2/p53 axis. Genomics 2020; 112:574-580. [DOI: 10.1016/j.ygeno.2019.04.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 04/08/2019] [Accepted: 04/13/2019] [Indexed: 12/26/2022]
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Xu C, Liu CH, Zhang DL. MicroRNA-22 inhibition prevents doxorubicin-induced cardiotoxicity via upregulating SIRT1. Biochem Biophys Res Commun 2019; 521:485-491. [PMID: 31677784 DOI: 10.1016/j.bbrc.2019.10.140] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 10/19/2019] [Indexed: 01/09/2023]
Abstract
Oxidative stress and cardiomyocyte apoptosis contributed to the progression of doxorubicin (Dox)-induced cardiotoxicity. Recent studies identified microRNA-22 (miR-22) as a cardiac- and skeletal muscle-enriched microRNA that functioned as a key regulator in stress-induced cardiac injury. The present study aimed to investigate the role and possible mechanism of miR-22 on Dox-induced oxidative stress and cardiomyocyte apoptosis. Mice were exposed to reduplicative injections of Dox (i.p., 4 mg/kg) weekly for consecutive 4 weeks to generate Dox-induced cardiotoxicity. Herein, we found that miR-22 level was significantly increased in murine hearts subjected to chronic Dox treatment. MiR-22 inhibition attenuated oxidative stress and cardiomyocyte apoptosis in vivo and in vitro, thereby preventing Dox-induced cardiac dysfunction. Mechanistically, we observed that miR-22 directly bound to the 3'-UTR of Sirt1 and caused SIRT1 downregulation. Conversely, miR-22 antagomir upregulated SIRT1 expression and SIRT1 inhibitor abolished the beneficial effects of miR-22 antagomir. In conclusion, miR-22 inhibition prevented oxidative stress and cardiomyocyte apoptosis via upregulating SIRT1 and miR-22 might be a new target for treating Dox-induced cardiotoxicity.
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Affiliation(s)
- Can Xu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan, 421001, PR China
| | - Chang-Hui Liu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan, 421001, PR China
| | - Da-Li Zhang
- Department of Emergency, The First Affiliated Hospital of University of South China, Hengyang, Hunan, 421001, PR China.
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Wang C, Sun X, Qiu Z, Chen A. MiR-138-5p exacerbates hypoxia/reperfusion-induced heart injury through the inactivation of SIRT1-PGC-1α. Inflamm Res 2019; 68:867-876. [PMID: 31312857 DOI: 10.1007/s00011-019-01268-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 06/27/2019] [Accepted: 07/08/2019] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES A drastic reduction in myocardial cell apoptosis plays a crucial role in the treatment/management of myocardial infarction, a major cardiovascular health challenge confronting the world, especially the Western world. Accumulating evidence indicates that the cardiotoxicity caused by the apoptotic machinery is partly regulated by miRNAs. The aim of this research is to investigate the role of miR-138-5p on hypoxia/reperfusion-induced heart injury. METHODS The expression of miR-138-5p was determined in heart tissue from myocardial infarction patients and rats. Rats were transfection with a miR-138-5p inhibitor to silence miR-138-5p. The cardiac function of rats was detected via echocardiography. SIRT1 and PGC-1α expression in cardiac infarction was detected via quantitative Real-time PCR (qPCR) and Western blot analysis, while the TUNEL assay was used to determine myocardial apoptosis. RESULTS Our observations showed that miR-138-5p expression was upregulated after the induction of myocardial infarction. The miR-138-5p inhibitor significantly improved cardiac function, increased the expression of SIRT1 and PGC-1α, and decreased the rate of myocardial apoptosis, whereas siRNA-SIRT1 reversed these protective effects. CONCLUSIONS In conclusion, our study demonstrated that miR-138-5p could promote cardiac ischemia injury via inhibition of the silent information regulator 1 and peroxisome proliferator-initiated receptor gamma and coactivator 1 alpha (SIRT1-PGC-1α) axis.
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Affiliation(s)
- Cuiping Wang
- Department of Cardiology, Affiliated Hospital of Jining Medical University, Jining, 272000, Shandong, People's Republic of China
| | - Xia Sun
- Department of Cardiology, Affiliated Hospital of Jining Medical University, Jining, 272000, Shandong, People's Republic of China
| | - Zhi Qiu
- Department of Cardiology, Affiliated Hospital of Jining Medical University, Jining, 272000, Shandong, People's Republic of China
| | - Anyong Chen
- Department of Cardiology, Affiliated Hospital of Jining Medical University, Jining, 272000, Shandong, People's Republic of China. .,Department of Clinical Laboratory, Affiliated Hospital of Jining Medical University, 89 Guhuai Road, Jining, 272000, Shandong, People's Republic of China.
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Zhang Y, Wang M, Xu X, Liu Y, Xiao C. Matrine promotes apoptosis in SW480 colorectal cancer cells via elevating MIEF1-related mitochondrial division in a manner dependent on LATS2-Hippo pathway. J Cell Physiol 2019; 234:22731-22741. [PMID: 31119752 DOI: 10.1002/jcp.28838] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 12/16/2022]
Abstract
Matrine, an alkaloid compound isolated from Sophora flavescens Ait, has been shown to exert cancer-killing actions in a variety of tumors; however, its anticancer mechanism in colorectal cancer (CRC) is not clear. The goal of our study was to characterize the anticancer effects and molecular mechanisms of matrine in SW480 CRC cells in vitro. Matrine treatment reduced mitochondrial metabolic function and ATP levels, repressed mitochondrial membrane potential, evoked mitochondrial reactive oxygen species accumulation, and promoted cyt-c-related mitochondrial apoptosis activation. In addition, we found that matrine treatment activated mitochondrial fission through upregulating mitochondrial elongation factor 1 (MIEF1); silencing of MIEF1 prevented matrine-mediated mitochondrial damage and reversed the decrease in SW480 cell viability. Moreover, matrine treatment affected MIEF1 expression via the large tumor suppressor-2 (LATS2)-Hippo axis, and LATS2 deficiency suppressed the anticancer actions exerted by matrine on SW480 cancer cells. In summary, we show for the first time that matrine inhibits SW480 cell survival by activating MIEF1-related mitochondrial division via the LATS2-Hippo pathway. These findings explain the anticancer mechanisms of matrine in CRC and also identify the LATS2-MIEF1 signaling pathway as an effective target for the treatment of CRC.
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Affiliation(s)
- Yawei Zhang
- Department of General Surgery, Fuzong Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China
| | - Meiping Wang
- Department of General Surgery, Fuzhou General Hospital (Dongfang Hospital), Fuzhou, Fujian, China
| | - Xianfeng Xu
- Department of Critical Care Medicine, Changle People's Hospital, Fuzhou, Fujian, China
| | - Yonghong Liu
- Department of General Surgery, First People's Hospital of Yuhang District, Hangzhou, China
| | - Chunhong Xiao
- Department of General Surgery, Fuzhou General Hospital (Dongfang Hospital), Fuzhou, Fujian, China
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Geng C, Wei J, Wu C. Mammalian STE20-like Kinase 1 Knockdown Attenuates TNFα-Mediated Neurodegenerative Disease by Repressing the JNK Pathway and Mitochondrial Stress. Neurochem Res 2019; 44:1653-1664. [PMID: 30949935 DOI: 10.1007/s11064-019-02791-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 03/28/2019] [Accepted: 04/01/2019] [Indexed: 12/12/2022]
Abstract
Neuroinflammation has been acknowledged as a primary factor contributing to the pathogenesis of neurodegenerative disease. However, the molecular mechanism underlying inflammation stress-mediated neuronal dysfunction is not fully understood. The aim of our study was to explore the influence of mammalian STE20-like kinase 1 (Mst1) in neuroinflammation using TNFα and CATH.a cells in vitro. The results of our study demonstrated that the expression of Mst1 was dose-dependently increased after TNFα treatment. Interestingly, knockdown of Mst1 using siRNA transfection significantly repressed TNFα-induced neuronal death. We also found that TNFα treatment was associated with mitochondrial stress, including mitochondrial ROS overloading, mitochondrial permeability transition pore (mPTP) opening, mitochondrial membrane potential reduction, and mitochondrial pro-apoptotic factor release. Interestingly, loss of Mst1 attenuated TNFα-triggered mitochondrial stress and sustained mitochondrial function in CATH.a cells. We found that Mst1 modulated mitochondrial homeostasis and cell viability via the JNK pathway in a TNFα-induced inflammatory environment. Inhibition of the JNK pathway abolished TNFα-mediated CATH.a cell death and mitochondrial malfunction, similar to the results obtained via silencing of Mst1. Taken together, our results indicate that inflammation-mediated neuronal dysfunction is implicated in Mst1 upregulation, which promotes mitochondrial stress and neuronal death by activating the JNK pathway. Accordingly, our study identifies the Mst1-JNK-mitochondria axis as a novel signaling pathway involved in neuroinflammation.
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Affiliation(s)
- Chizi Geng
- Neurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
| | - Jianchao Wei
- Neurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Chengsi Wu
- Neurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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Hou Y, Lan C, Kong Y, Zhu C, Peng W, Huang Z, Zhang C. Genetic ablation of TAZ induces HepG2 liver cancer cell apoptosis through activating the CaMKII/MIEF1 signaling pathway. Onco Targets Ther 2019; 12:1765-1779. [PMID: 30881030 PMCID: PMC6402445 DOI: 10.2147/ott.s196142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background and objective Transcriptional coactivator with PDZ-binding motif (TAZ) has been found to be associated with tumor progression. Mitochondrial homeostasis regulates cancer cell viability and metastasis. However, the roles of TAZ and mitochondrial homeostasis in liver cancer viability have not been explored. The aim of our study was to investigate the influence of TAZ on HepG2 liver cancer cell apoptosis. Materials and methods HepG2 liver cancer cell was used in the present study, and shRNA against TAZ was transfected into HepG2 cell to knockdown TAZ expression. Mitochondrial function was analyzed using Western blotting, immunofluorescence assay, and flow cytometry. Pathway blocker was used to confirm the role of CaMKII pathway in TAZ-mediated cancer cell death. Results Our results indicated that TAZ deletion induced death in HepG2 cell via apoptosis. Biological analysis demonstrated that mitochondrial stress, including mitochondrial bioenergetics disorder, mitochondrial oxidative stress, and mitochondrial apoptosis, were activated by TAZ deletion. Furthermore, we found that TAZ affected mitochondrial stress by triggering mitochondrial elongation factor 1 (MIEF1)-related mitochondrial dysfunction. The loss of MIEF1 sustained mitochondrial function and promoted cancer cell survival. Molecular investigation illustrated that TAZ regulated MIEF1 expression via the CaMKII signaling pathway. Blockade of the CaMKII pathway prevented TAZ-mediated MIEF1 upregulation and improved cancer cell survival. Conclusion Taken together, our results highlight the key role of TAZ as a master regulator of HepG2 liver cancer cell viability via the modulation of MIEF1-related mitochondrial stress and the CaMKII signaling pathway. These findings define TAZ and MIEF1-related mitochondrial dysfunction as tumor suppressors that act by promoting cancer apoptosis via the CaMKII signaling pathway, with potential implications for new approaches to liver cancer therapy.
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Affiliation(s)
- Yi Hou
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Chunna Lan
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Ying Kong
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Chunjiao Zhu
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Wenna Peng
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Zhichao Huang
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Changjie Zhang
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
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Song J, Zhao W, Lu C, Shao X. LATS2 overexpression attenuates the therapeutic resistance of liver cancer HepG2 cells to sorafenib-mediated death via inhibiting the AMPK-Mfn2 signaling pathway. Cancer Cell Int 2019; 19:60. [PMID: 30923462 PMCID: PMC6423758 DOI: 10.1186/s12935-019-0778-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 03/08/2019] [Indexed: 12/21/2022] Open
Abstract
Background Effective therapy for hepatocellular carcinoma (HCC) is currently an imperative issue, and sorafenib is a first-line drug for the treatment of HCC. However, the clinical benefit of sorafenib is often impaired by drug resistance. Accordingly, the present study was conducted to investigate the molecular mechanisms involving sorafenib resistance, with a focus on large tumor suppressor 2 (LATS2) and mitophagy. Methods HepG2 liver cancer cells were treated with sorafenib and infected with adenovirus-loaded LATS2 (Ad-LATS2). Cell death, proliferation and migration were measured via western blotting analysis, immunofluorescence and qPCR. Mitochondrial function and mitophagy were determined via western blotting and immunofluorescence. Results Our data indicated that LATS2 expression was repressed by sorafenib treatment, and overexpression of LATS2 could further enhance sorafenib-mediated apoptosis in HepG2 liver cancer cells. At the molecular level, mitochondrial stress was triggered by sorafenib treatment, as evidenced by decreased mitochondrial membrane potential, increased mitochondrial ROS production, more cyc-c release into the nucleus, and elevated mitochondrial pro-apoptotic proteins. However, in response to mitochondrial damage, mitophagy was activated by sorafenib treatment, whereas LATS2 overexpression effectively inhibited mitophagy activity and thus augmented sorafenib-mediated mitochondrial stress. Subsequently, we also demonstrated that the AMPK–MFN2 signaling pathway was involved in mitophagy regulation after exposure to sorafenib treatment and/or LATS2 overexpression. Inhibition of the AMPK pathway interrupted mitophagy and thus enhanced the antitumor property of sorafenib, similar to the results obtained via overexpression of LATS2. Conclusions Altogether, our findings revealed the importance of the LATS2/AMPK/MFN2/mitophagy axis in understanding sorafenib resistance mechanisms, with a potential application to increase the sensitivity response of sorafenib in the treatment of liver cancer.
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Affiliation(s)
- Jie Song
- 1Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Wei Zhao
- 2Department of Pharmacy, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Chang Lu
- 3Department of Anesthesiology, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Xue Shao
- 1Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, 130000 China
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Yap-Hippo promotes A549 lung cancer cell death via modulating MIEF1-related mitochondrial stress and activating JNK pathway. Biomed Pharmacother 2019; 113:108754. [PMID: 30875659 DOI: 10.1016/j.biopha.2019.108754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 02/26/2019] [Accepted: 03/02/2019] [Indexed: 12/31/2022] Open
Abstract
Although the role of Yes-associated protein (Yap) has been described in the progression of lung cancer, the downstream effector of the Yap-Hippo pathway has not been identified. Accordingly, the aim of our study is to explore whether Yap modulates the activity of lung cancer by controlling mitochondrial elongation factor 1 (MIEF1)-related mitochondrial stress in a manner dependent on the JNK pathway. Cell viability was determined via MTT, LDH release and immunofluorescence assays. ATP production, the mitochondrial membrane potential, and caspase-9 activity were investigated to assess mitochondrial function. siRNA transfection and pathway blockers were used to observe the roles of MIEF1 and JNK in Yap-modulated cell viability in lung cancer cells in vitro. Yap deletion reduced cell viability in A549 and H358 lung cancer cells. At the molecular level, Yap deletion promoted mitochondrial dysfunction, as evidenced by the decreased mitochondrial potential, increased mitochondrial oxidative stress, augmented mitochondrial pro-apoptotic factor leakage and elevated caspase-9 activity. In addition, we found that Yap modulated mitochondrial stress via MIEF1 and that loss of MIEF1 abolished the regulatory actions of Yap on mitochondrial stress and cell viability. Besides, we provided evidence to support the necessary role of JNK in Yap-mediated MIEF1 upregulation. Inhibition of JNK abolished the promotive effect of Yap deletion on MIEF1 activation. Taken together, our results identified the JNK-MIEF1 pathway and mitochondrial stress as downstream effectors of Yap in lung cancer. This finding suggests a novel approach for the treatment of lung cancer in clinical practice.
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Wei N, Pu Y, Yang Z, Pan Y, Liu L. Therapeutic effects of melatonin on cerebral ischemia reperfusion injury: Role of Yap-OPA1 signaling pathway and mitochondrial fusion. Biomed Pharmacother 2019; 110:203-212. [PMID: 30476721 DOI: 10.1016/j.biopha.2018.11.060] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 01/07/2023] Open
Abstract
The role of OPA1-related mitochondrial fusion in brain reperfusion stress has remained elusive. The aim of our study is to explore whether melatonin alleviates cerebral IR injury by modulating OPA1-related mitochondrial fusion. We found that melatonin reduced infarct area and suppressed neuron death during reperfusion stress. Biological studies have revealed that IR-inhibited mitochondrial fusion was largely reversed by melatonin via upregulated OPA1 expression. Knocking down OPA1 abrogated the protective effects of melatonin on mitochondrial energy metabolism and mitochondrial apoptosis. In addition, we also found that melatonin modified OPA1 expression via the Yap-Hippo pathway; blockade of the Yap-Hippo pathway induced neuron death and mitochondrial damage despite treatment with melatonin. Altogether, our data demonstrated that cerebral IR injury is closely associated with defective OPA1-related mitochondrial fusion. Melatonin supplementation enhances OPA1-related mitochondrial fusion by activating the Yap-Hippo pathway, ultimately reducing brain reperfusion stress.
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Affiliation(s)
- Na Wei
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; China National Clinical Research Center for Neurological Diseases, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; Center of Stroke, Beijing Institute for Brain Disorders, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China
| | - Yuehua Pu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; China National Clinical Research Center for Neurological Diseases, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; Center of Stroke, Beijing Institute for Brain Disorders, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China
| | - Zhonghua Yang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; China National Clinical Research Center for Neurological Diseases, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; Center of Stroke, Beijing Institute for Brain Disorders, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China
| | - Yuesong Pan
- China National Clinical Research Center for Neurological Diseases, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China
| | - Liping Liu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; China National Clinical Research Center for Neurological Diseases, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; Center of Stroke, Beijing Institute for Brain Disorders, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, No. 119, Nansihuan West Road, Fengtai District, Beijing, 100070, China.
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Zhang L, Li S, Wang R, Chen C, Ma W, Cai H. RETRACTED: Cytokine augments the sorafenib-induced apoptosis in Huh7 liver cancer cellby inducing mitochondrial fragmentation and activating MAPK-JNKsignalling pathway. Biomed Pharmacother 2019; 110:213-223. [DOI: 10.1016/j.biopha.2018.11.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/31/2018] [Accepted: 11/10/2018] [Indexed: 12/11/2022] Open
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Zhou T, Chang L, Luo Y, Zhou Y, Zhang J. Mst1 inhibition attenuates non-alcoholic fatty liver disease via reversing Parkin-related mitophagy. Redox Biol 2019; 21:101120. [PMID: 30708325 PMCID: PMC6357900 DOI: 10.1016/j.redox.2019.101120] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 01/16/2019] [Accepted: 01/22/2019] [Indexed: 12/29/2022] Open
Abstract
Obesity-related non-alcoholic fatty liver disease (NAFLD) is connected with mitochondrial stress and hepatocyte apoptosis. Parkin-related mitophagy sustains mitochondrial homeostasis and hepatocyte viability. However, the contribution and regulatory mechanisms of Parkin-related mitophagy in NAFLD are incompletely understood. Macrophage stimulating 1 (Mst1) is a novel mitophagy upstream regulator which excerbates heart and cancer apoptosisn via repressing mitophagy activity. The aim of our study is to explore whether Mst1 contributes to NAFLD via disrupting Parkin-related mitophagy. A NAFLD model was generated in wild-type (WT) mice and Mst1 knockout (Mst1-KO) mice using high-fat diet (HFD). Cell experiments were conducted via palmitic acid (PA) treatment in the primary hepatocytes. The results in our study demonstrated that Mst1 was significantly upregulated in HFD-treated livers. Genetic ablation of Mst1 attenuated HFD-mediated hepatic injury and sustained hepatocyte viability. Functional studies illustrated that Mst1 knockdown reversed Parkin-related mitophagy and the latter protected mitochondria and hepatocytes against HFD challenge. Besides, we further figured out that Mst1 modulated Parkin expression via the AMPK pathway; blockade of AMPK repressed Parkin-related mitophagy and recalled hepatocytes mitochondrial apoptosis. Altogether, our data identified that NAFLD was closely associated with the defective Parkin-related mitophagy due to Mst1 upregulation. This finding may pave the road to new therapeutic modalities for the treatment of fatty liver disease. Mst1 deletion prevents diet-induced NAFLD. Mst1 deficiency increases Parkin expression and thus reverses mitophagy activity. Loss of Parkin-related mitophagy abrogates the protective effect of Mst1 deletion on hepatocyte mitochondrial stress. Mst1 modulates Parkin via activating AMPK pathway.
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Affiliation(s)
- Tao Zhou
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ling Chang
- Department of Gastroenterology, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Luo
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ying Zhou
- Department of Gastroenterology, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Jianjun Zhang
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Lan S, Liu J, Luo X, Bi C. Effects of melatonin on acute brain reperfusion stress: role of Hippo signaling pathway and MFN2-related mitochondrial protection. Cell Stress Chaperones 2019; 24:235-245. [PMID: 30632064 PMCID: PMC6363627 DOI: 10.1007/s12192-018-00960-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 11/28/2018] [Accepted: 12/03/2018] [Indexed: 12/11/2022] Open
Abstract
Acute brain reperfusion stress is associated with mitochondrial dysfunction through unknown mechanisms. Accordingly, there is no effective drug to control the development and progression of brain reperfusion stress currently. The aim of our investigation is to verify whether melatonin attenuates acute brain reperfusion stress via affecting mitochondrial function. Our studies demonstrated that melatonin treatment suppressed reperfusion-induced neuron death. At the molecular levels, melatonin treatment modulated mitochondrial homeostasis via activating mitochondrial fusion. At the stage of reperfusion, MFN2 expression was downregulated, contributing to mitochondrial fusion inhibition. Interestingly, MFN2-related mitochondrial fusion was reversed by melatonin. Loss of MFN2-related mitochondrial fusion abrogated the protective actions of melatonin on mitochondrial function. Mechanistically, melatonin sustained MFN2-related mitochondrial fusion via suppressing Mst1-Hippo pathway. Overexpression of Mst1 attenuated the beneficial effects of melatonin on mitochondrial fusion, evoking mitochondrial damage and neuron death in the setting of brain reperfusion stress. Taken together, our results confirmed the protective effects of melatonin on acute brain reperfusion stress. Melatonin treatment activated MFN2-related mitochondrial fusion via suppressing Mst1-Hippo pathway, finally sustaining mitochondrial function and reducing reperfusion-mediated cerebral injury.
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Affiliation(s)
- Song Lan
- Department of Neurosurgery, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, China.
| | - Jingfang Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, China
| | - Xiangying Luo
- Department of Neurosurgery, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, China
| | - Changlong Bi
- Department of Neurosurgery, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, China
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33
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Liu H, Huang H, Li R, Bi W, Feng L, E L, Hu M, Wen W. Mitophagy protects SH-SY5Y neuroblastoma cells against the TNFα-induced inflammatory injury: Involvement of microRNA-145 and Bnip3. Biomed Pharmacother 2019; 109:957-968. [DOI: 10.1016/j.biopha.2018.10.123] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/16/2018] [Accepted: 10/20/2018] [Indexed: 01/19/2023] Open
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Wei B, Wang M, Hao W, He X. Mst1 facilitates hyperglycemia-induced retinal pigmented epithelial cell apoptosis by evoking mitochondrial stress and activating the Smad2 signaling pathway. Cell Stress Chaperones 2019; 24:259-272. [PMID: 30632063 PMCID: PMC6363619 DOI: 10.1007/s12192-018-00963-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/07/2018] [Accepted: 12/12/2018] [Indexed: 01/12/2023] Open
Abstract
Hyperglycemia induces retinal pigmented epithelial cell apoptosis and mitochondrial stress via poorly understood mechanisms. The goal of our current study is to explore whether mammalian sterile 20-like kinase 1 (Mst1) is involved in the pathogenesis of hyperglycemia-mediated retinal pigmented epithelial cell apoptosis by triggering mitochondrial abnormalities and activating the Smad2 signaling pathway. Retinal pigmented epithelial ARPE-19 cells were presented with a high-glucose challenge in vitro. Cell viability and apoptosis were measured via western blotting, ELISAs, and immunofluorescence assays. Mitochondrial function was detected via JC-1 staining, mitochondrial ROS flow cytometry, western blotting, and ELISAs. Loss- and gain-of-function assays were performed via cell transfection and transduction with Mst1 siRNA and Smad2 adenovirus, respectively. The results indicated that hyperglycemia treatment upregulated the levels of Mst1, an effect that was accompanied by an increase in ARPE-19 cell apoptosis. Loss of Mst1 attenuated hyperglycemia-induced cell apoptosis, and this effect seemed to be associated with mitochondrial protection. In response to hyperglycemia stimulus, mitochondrial stress was noted in ARPE-19 cells, including mitochondrial ROS overproduction, mitochondrial respiratory metabolism dysfunction, mitochondrial fission/fusion imbalance, and mitochondrial apoptosis activation. Further, we provided evidence to support the crucial role played by Smad2 in promoting Mst1-mediated cell apoptosis and mitochondrial stress. Overexpression of Smad2 abrogated the beneficial effects of Mst1 deletion on ARPE-19 cell viability and mitochondrial protection. Altogether, our results identified Mst1 as a novel mediator controlling the fate of retinal pigmented epithelial cells and mitochondrial homeostasis via the Smad2 signaling pathway. Based on this finding, strategies to repress Mst1 upregulation and block Smad2 activation are vital to alleviate hyperglycemia-mediated retinal pigmented epithelial cell damage.
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Affiliation(s)
- Bing Wei
- Department of Medicine, He University, No.66, Sishui Street, Hunnan District, Shenyang City, Liaoning Province, China
| | - Min Wang
- Department of Medicine, He University, No.66, Sishui Street, Hunnan District, Shenyang City, Liaoning Province, China
| | - Wei Hao
- Department of Medicine, He University, No.66, Sishui Street, Hunnan District, Shenyang City, Liaoning Province, China
| | - Xiangdong He
- Department of Medicine, He University, No.66, Sishui Street, Hunnan District, Shenyang City, Liaoning Province, China.
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Yao S, Yan W. Overexpression of Mst1 reduces gastric cancer cell viability by repressing the AMPK-Sirt3 pathway and activating mitochondrial fission. Onco Targets Ther 2018; 11:8465-8479. [PMID: 30555239 PMCID: PMC6278716 DOI: 10.2147/ott.s180851] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Mammalian sterile 20-like kinase 1 (Mst1) plays a critical role in regulating cell survival and apoptosis. However, its influence on gastric cancer cell viability is not understood. Our study aims to explore the specific role of Mst1 in gastric cancer. MATERIALS AND METHODS Cellular viability was measured via TUNEL staining, MTT assays, and Western blotting. Immunofluorescence was performed to observe mitochondrial fission. Mst1 overexpression assays were conducted to observe the regulatory mechanisms of Mst1 in mitochondrial fission and cell apoptosis. RESULTS The results demonstrated that Mst1 was downregulated in AGS cells when compared with GES-1 cells. However, overexpression of Mst1 reduced cell viability and increased apoptosis in AGS cells. Molecular experiments showed that Mst1 overexpression mediated mitochondrial damage, as evidenced by decreased ATP production, increased ROS generation, more cyt-c translocation from the mitochondria into the cytoplasm and nucleus, and activated the caspase-9-related apoptotic pathway. Furthermore, we found that mitochondrial fission was required for Mst1-induced mitochondrial dysfunction; inhibition of mitochondrial fission sustained mitochondrial homeostasis in response to Mst1 overexpression. In addition, our data revealed that Mst1 controlled mitochondrial fission via repressing the AMPK-Sirt3 pathway. Activation of the AMPK-Sirt3 pathway negated the promoting effect of Mst1 overexpression on mitochondrial fission. CONCLUSION Altogether, our data identified Mst1 as a novel tumor-suppressive factor in promoting cell death in gastric cancer cells by triggering mitochondrial fission and blocking the AMPK-Sirt3 axis.
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Affiliation(s)
- Shiwei Yao
- Department of Gastroenterology, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing, China,
| | - Wei Yan
- Department of Gastroenterology, The First Hospital of Tsinghua University, Beijing, China
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Wan J, Cui J, Wang L, Wu K, Hong X, Zou Y, Zhao S, Ke H. Excessive mitochondrial fragmentation triggered by erlotinib promotes pancreatic cancer PANC-1 cell apoptosis via activating the mROS-HtrA2/Omi pathways. Cancer Cell Int 2018; 18:165. [PMID: 30377412 PMCID: PMC6196464 DOI: 10.1186/s12935-018-0665-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 10/16/2018] [Indexed: 12/19/2022] Open
Abstract
Background Mitochondrial fragmentation drastically regulates the viability of pancreatic cancer through a poorly understood mechanism. The present study used erlotinib to activate mitochondrial fragmentation and then investigated the downstream events that occurred in response to mitochondrial fragmentation. Methods Cell viability and apoptosis were determined via MTT assay, TUNEL staining and ELISA. Mitochondrial fragmentation was measured via an immunofluorescence assay and qPCR. siRNA transfection and pathway blockers were used to perform the loss-of-function assays. Results The results of our study demonstrated that erlotinib treatment mediated cell apoptosis in the PANC-1 pancreatic cancer cell line via evoking mitochondrial fragmentation. Mechanistically, erlotinib application increased mitochondrial fission and reduced mitochondrial fusion, triggering mitochondrial fragmentation. Subsequently, mitochondrial fragmentation caused the overproduction of mitochondrial ROS (mROS). Interestingly, excessive mROS induced cardiolipin oxidation and mPTP opening, finally facilitating HtrA2/Omi liberation from the mitochondria into the cytoplasm, where HtrA2/Omi activated caspase-9-dependent cell apoptosis. Notably, neutralization of mROS or knockdown of HtrA2/Omi attenuated erlotinib-mediated mitochondrial fragmentation and favored cancer cell survival. Conclusions Together, our results identified the mROS-HtrA2/Omi axis as a novel signaling pathway that is activated by mitochondrial fragmentation and that promotes PANC-1 pancreatic cancer cell mitochondrial apoptosis in the presence of erlotinib. Electronic supplementary material The online version of this article (10.1186/s12935-018-0665-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jun Wan
- 1Department of Pharmacy, Third Clinical Medical College, Three Gorges University, Gezhouba Group Central Hospital, Yichang, 443002 Hubei China
| | - Jie Cui
- 1Department of Pharmacy, Third Clinical Medical College, Three Gorges University, Gezhouba Group Central Hospital, Yichang, 443002 Hubei China
| | - Lei Wang
- 2Department of Pathogenic Biology, School of Medicine, China Three Gorges University, Yichang, 443002 Hubei China
| | - Kunpeng Wu
- 1Department of Pharmacy, Third Clinical Medical College, Three Gorges University, Gezhouba Group Central Hospital, Yichang, 443002 Hubei China
| | - Xiaoping Hong
- 1Department of Pharmacy, Third Clinical Medical College, Three Gorges University, Gezhouba Group Central Hospital, Yichang, 443002 Hubei China
| | - Yulin Zou
- 1Department of Pharmacy, Third Clinical Medical College, Three Gorges University, Gezhouba Group Central Hospital, Yichang, 443002 Hubei China
| | - Shuang Zhao
- 1Department of Pharmacy, Third Clinical Medical College, Three Gorges University, Gezhouba Group Central Hospital, Yichang, 443002 Hubei China
| | - Hong Ke
- 3Department of Oncology, Third Clinical Medical College, Three Gorges University, Gezhouba Group Central Hospital, No. 60 Qiaohu Lake Road, Xiling District, Yichang, 443002 Hubei China
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Tanshinone IIA promotes IL2-mediated SW480 colorectal cancer cell apoptosis by triggering INF2-related mitochondrial fission and activating the Mst1-Hippo pathway. Biomed Pharmacother 2018; 108:1658-1669. [PMID: 30372868 DOI: 10.1016/j.biopha.2018.09.170] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/27/2018] [Accepted: 09/28/2018] [Indexed: 01/02/2023] Open
Abstract
IL-2-based therapy is a promising tool to treat colorectal cancer, but drug resistance always occurs in clinical practice. Mitochondrial fission is a novel target to modulate cancer development and progression. The aim of our study is to explore the effect of IL-2 combined with Tan IIA on SW480 colorectal cancer cell apoptosis in vitro and to determine whether IL-2/Tan IIA cotreatment could reduce SW480 cell viability via activating mitochondrial fission. The results indicated that Tan IIA increased IL-2-mediated cell death in SW480 colorectal cancer cells, and this effect was also accompanied with a reduction in cell proliferation. Functional investigations demonstrated that Tan IIA/IL-2 cotreatment enhanced INF2-related mitochondrial fission. Excessive mitochondrial division induced mitochondrial oxidative stress, mitochondrial energy metabolism disorder and mitochondrial apoptosis in SW480 cells. Inhibition of mitochondrial fission attenuated the antitumor effect of Tan IIA/IL-2 cotreatment on SW480 cell apoptosis. Further, we demonstrated that Tan IIA/IL-2 combination therapy controlled INF2-related mitochondrial fission via the Mst1-Hippo pathway. Moreover, Mst1 knockdown abrogated Tan IIA/IL-2-activated mitochondrial fission. Altogether, our results demonstrated that Tan IIA enhances the therapeutic efficiency of IL-2-mediated SW480 colorectal cancer cell apoptosis via promoting INF2-related mitochondrial fission and activating the Mst1-Hippo pathway.
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38
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Nur77 promotes cerebral ischemia-reperfusion injury via activating INF2-mediated mitochondrial fragmentation. J Mol Histol 2018; 49:599-613. [PMID: 30298449 DOI: 10.1007/s10735-018-9798-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/03/2018] [Indexed: 02/06/2023]
Abstract
Mitochondrial fragmentation drastically regulates mitochondrial homeostasis in brain illness. However, the role of mitochondrial fragmentation in cerebral ischemia-reperfusion (IR) injury remains unclear. Nur77, a regulator of mitochondrial homeostasis, is associated with heart and liver IR injury, but its effects on mitochondrial function in cerebral IR injury has not been studied intensively. The aim of our study is to explore whether cerebral IR injury is modulated by Nur77 via modification of mitochondrial homeostasis. Our results indicated that Nur77 was upregulated in reperfused brain tissues. Genetic ablation of Nur77 reduced infarction area and promoted neuron survival under IR burden. Biochemical analysis demonstrated that Nur77 deletion protected mitochondrial function, attenuated mitochondrial oxidative stress, preserved mitochondrial potential, and blocked mitochondria-related cell apoptosis. In addition, we illustrated that Nur77 mediated mitochondrial damage via evoking mitochondrial fragmentation that occurred through increased mitochondrial fission and decreased fusion. Besides, our results also demonstrated that Nur77 controlled mitochondrial fragmentation via upregulating INF2 in a manner dependent on the Wnt/β-catenin pathway; inhibition of the Wnt pathway abrogated the protective effect of Nur77 deletion on reperfused-mediated neurons. Altogether, our study highlights that the pathogenesis of cerebral IR injury is associated with Nur77 activation followed by augmented mitochondrial fragmentation via an abnormal Wnt/β-catenin/INF2 pathway. Accordingly, Nur77-dependent mitochondrial fragmentation and the Wnt/β-catenin/INF2 axis may represent novel therapeutic targets to reduce cerebral IR injury.
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Sheng J, Li H, Dai Q, Lu C, Xu M, Zhang J, Feng J. DUSP1 recuses diabetic nephropathy via repressing JNK‐Mff‐mitochondrial fission pathways. J Cell Physiol 2018; 234:3043-3057. [PMID: 30191967 DOI: 10.1002/jcp.27124] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/05/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Junqin Sheng
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Hongyan Li
- Department of NephrologyHuadu District People’s Hospital, Southern Medical UniversityGuangzhou China
| | - Qin Dai
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Chang Lu
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Min Xu
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Jisheng Zhang
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Jianxun Feng
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
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40
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Zhou H, Wang J, Hu S, Zhu H, Toanc S, Ren J. BI1 alleviates cardiac microvascular ischemia-reperfusion injury via modifying mitochondrial fission and inhibiting XO/ROS/F-actin pathways. J Cell Physiol 2018; 234:5056-5069. [PMID: 30256421 DOI: 10.1002/jcp.27308] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 08/01/2018] [Indexed: 12/23/2022]
Abstract
Pathogenesis of cardiac microvascular ischemia-reperfusion (IR) injury is associated with excessive mitochondrial fission. However, the upstream mediator of mitochondrial fission remains obscure. Bax inhibitor 1 (BI1) is linked to multiple mitochondrial functions, and there have been no studies investigating the contribution of BI1 on mitochondrial fission in the setting of cardiac microvascular IR injury. This study was undertaken to establish the action of BI1 on the cardiac microvascular reperfusion injury and figure out whether BI1 sustained endothelial viability via inhibiting mitochondrial fission. Our observation indicated that BI1 was downregulated in reperfused hearts and overexpression of BI1 attenuated microvascular IR injury. Mechanistically, reperfusion injury elevated the levels of xanthine oxidase (XO), an effect that was followed by increased reactive oxygen species (ROS) production. Subsequently, oxidative stress mediated F-actin depolymerization and the latter promoted mitochondrial fission. Aberrant fission caused mitochondrial dysfunction and ultimately activated mitochondrial apoptosis in cardiac microvascular endothelial cells. By comparison, BI1 overexpression repressed XO expression and thus neutralized ROS, interrupting F-actin-mediated mitochondrial fission. The inhibitory effect of BI1 on mitochondrial fission sustained endothelial viability, reversed endothelial barrier integrity, attenuated the microvascular inflammation response, and maintained microcirculation patency. Altogether, we conclude that BI1 is essential in maintaining mitochondrial homeostasis and alleviating cardiac microvascular IR injury. Deregulated BI1 via the XO/ROS/F-actin pathways plays a causative role in the development of cardiac microvascular reperfusion injury.
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Affiliation(s)
- Hao Zhou
- Department of Cardiology, Medical School of Chinese PLA Hospital, Beijing, China.,Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, Wyoming
| | - Jin Wang
- Department of Cardiology, Medical School of Chinese PLA Hospital, Beijing, China
| | - Shunying Hu
- Department of Cardiology, Medical School of Chinese PLA Hospital, Beijing, China
| | - Hong Zhu
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, Wyoming
| | - Sam Toanc
- Department of Chemical and Environmental Engineering, University of California, Riverside, California
| | - Jun Ren
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, Wyoming
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Zhang Z, Yu J. NR4A1 Promotes Cerebral Ischemia Reperfusion Injury by Repressing Mfn2-Mediated Mitophagy and Inactivating the MAPK-ERK-CREB Signaling Pathway. Neurochem Res 2018; 43:1963-1977. [PMID: 30136162 DOI: 10.1007/s11064-018-2618-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/09/2018] [Accepted: 08/17/2018] [Indexed: 12/31/2022]
Abstract
Mitochondrial dysfunction has been acknowledged as the key pathogenic mechanism in cerebral ischemia-reperfusion (IR) injury. Mitophagy is the protective system used to sustain mitochondrial homeostasis. However, the upstream regulator of mitophagy in response to brain IR injury is not completely understood. Nuclear receptor subfamily 4 group A member 1 (NR4A1) has been found to be associated with mitochondrial protection in a number of diseases. The aim of our study is to explore the functional role of NR4A1 in cerebral IR injury, with a particular focus on its influence on mitophagy. Wild-type mice and NR4A1-knockout mice were used to generate cerebral IR injury in vivo. Mitochondrial function and mitophagy were detected via immunofluorescence assays and western blotting. Cellular apoptosis was determined via MTT assays, caspase-3 activity and western blotting. Our data revealed that NR4A1 was significantly increased in the reperfused brain tissues. Genetic ablation of NR4A1 reduced the cerebral infarction area and repressed neuronal apoptosis. The functional study demonstrated that NR4A1 modulated cerebral IR injury by inducing mitochondrial damage. Higher NR4A1 promoted mitochondrial potential reduction, evoked cellular oxidative stress, interrupted ATP generation, and initiated caspase-9-dependent apoptosis. Mechanistically, NR4A1 induced mitochondrial damage by disrupting Mfn2-mediated mitophagy. Knockdown of NR4A1 elevated Mfn2 expression and therefore reversed mitophagic activity, sending a prosurvival signal for mitochondria in the setting of cerebral IR injury. Further, we demonstrated that NR4A1 modulated Mfn2 expression via the MAPK-ERK-CREB signaling pathway. Blockade of the ERK pathway could abrogate the permissive effect of NR4A1 deletion on mitophagic activation, contributing to neuronal mitochondrial apoptosis. Overall, our results demonstrate that the pathogenesis of cerebral IR injury is closely associated with a drop in protective mitophagy due to increased NR4A1 through the MAPK-ERK-CREB signaling pathway.
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Affiliation(s)
- Zhanwei Zhang
- Department of Neurosurgery, First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China
| | - Jianbai Yu
- Department of Neurosurgery, First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, 410007, Hunan, China.
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42
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Li R, Xin T, Li D, Wang C, Zhu H, Zhou H. Therapeutic effect of Sirtuin 3 on ameliorating nonalcoholic fatty liver disease: The role of the ERK-CREB pathway and Bnip3-mediated mitophagy. Redox Biol 2018; 18:229-243. [PMID: 30056271 PMCID: PMC6079484 DOI: 10.1016/j.redox.2018.07.011] [Citation(s) in RCA: 245] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 07/18/2018] [Accepted: 07/19/2018] [Indexed: 12/11/2022] Open
Abstract
Increased mitochondrial damage is related to the progression of a diet-induced nonalcoholic fatty liver disease. The aim of our study is to investigate the role of Sirtuin 3 (Sirt3) in treating nonalcoholic fatty liver disease with a focus on mitophagy and the ERK-CREB pathway. Our data indicated that Sirt3 was downregulated in liver tissue in response to chronic HFD treatment. Interestingly, re-introduction of Sirt3 protected hepatic function, attenuated liver fibrosis, alleviated the inflammatory response, and prevented hepatocyte apoptosis. Molecular investigations demonstrated that lipotoxicity was associated with an increase in mitochondrial apoptosis as evidenced by reduced mitochondrial potential, augmented ROS production, increased cyt-c leakage into the nucleus, and activated caspase-9 apoptotic signalling. Additionally, Sirt3 overexpression protected hepatocytes against mitochondrial apoptosis via promoting Bnip3-required mitophagy. Functional studies showed that Sirt3 reversed Bnip3 expression and mitophagy activity via the ERK-CREB signalling pathway. Blockade of the ERK-CREB axis repressed the promotive effects of Sirt3 on Bnip3 activation and mitophagy augmentation, finally negating the anti-apoptotic influences of Sirt3 on hepatocytes in the setting of high-fat-stress. Collectively, our data show that high-fat-mediated liver damage is associated with Sirt3 downregulation, which is followed by ERK-CREB pathway inactivation and Bnip3-mediated inhibition of mitophagy, causing hepatocytes to undergo mitochondria-dependent cell death. Based on this, strategies for enhancing Sirt3 activity and activating the ERK-CREB-Bnip3-mitophagy pathways could be used to treat nonalcoholic fatty liver disease. Sirt3 overexpression prevents diet-mediated fatty liver disease. Sirt3 blocks hepatocyte mitochondrial apoptosis in the setting of high-fat injury. Bnip3-mediated mitophagy protects mitochondria against high-fat-mediated damage. Sirt3 controls Bnip3-mediated mitophagy via the ERK-CREB signalling pathway.
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Affiliation(s)
- Ruibing Li
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China
| | - Ting Xin
- Department of Cardiology, Tianjin First Central Hospital, Tianjin 300192, PR China
| | - Dandan Li
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China
| | - Chengbin Wang
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China.
| | - Hang Zhu
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China.
| | - Hao Zhou
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China; Center for Cardiovascular Research and Alternative Medicine, Wyoming University, Laramie, WY 82071, USA.
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43
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Li M, Yang X, Wang S. PTEN enhances nasal epithelial cell resistance to TNFα‑induced inflammatory injury by limiting mitophagy via repression of the TLR4‑JNK‑Bnip3 pathway. Mol Med Rep 2018; 18:2973-2986. [PMID: 30015897 DOI: 10.3892/mmr.2018.9264] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 05/23/2018] [Indexed: 11/05/2022] Open
Abstract
Nasal epithelial cell inflammatory injury is associated with chronic obstructive pulmonary disease development. However, the mechanism by which inflammation triggers nasal epithelial cell damage remains unclear. In the present study, tumor necrosis factor (TNF)α was used to induce an inflammatory injury and explore the underlying pathogenesis for nasal epithelial cell apoptosis in vitro, with a focus on mitochondrial homeostasis. Then, cellular apoptosis was detected via a terminal deoxynucleotidyl‑transferase‑mediated dUTP nick end labeling assay and western blotting. Mitochondrial function was evaluated via JC‑1 staining, mPTP opening measurement and western blotting. The results demonstrated that TNFα treatment induced nasal epithelial cell apoptosis, proliferation arrest and migration inhibition via downregulating phosphatase and tensin homolog (PTEN) levels. Increased PTEN expression was associated with reduce Toll‑like receptor (TLR)4‑c‑Jun kinase (JNK)‑Bcl2‑interacting protein 3 (Bnip3) pathway signaling, leading to reductions in mitophagy activity. Excessive mitophagy resulted in ATP deficiencies, mitochondrial dysfunction, caspase‑9 activation and cellular apoptosis. By contrast, PTEN overexpression in nasal epithelial cells alleviated the mitochondrial damage and cellular apoptosis via inhibiting the TLR4‑JNK‑Bnip3 pathway, favoring the survival of nasal epithelial cells under inflammatory injury. Therefore, this data uncovered a potential molecular basis for nasal epithelial cell apoptosis in response to inflammatory injury, and PTEN was identified as the endogenous defender of nasal epithelial cell survival via controlling lethal mitophagy by inhibiting the TLR4‑JNK‑Bnip3 pathway, suggesting that this pathway may be a potential target for clinically treating chronic nasal and sinus inflammatory injury.
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Affiliation(s)
- Meng Li
- Department of Chinese Medicine, Children's Hospital Affiliated to Capital Institute of Pediatrics, Beijing 100020, P.R. China
| | - Xiang Yang
- Department of Cardiac Surgery, Children's Hospital Affiliated to Capital Institute of Pediatrics, Beijing 100020, P.R. China
| | - Shouchuan Wang
- Department of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
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Zhou H, Wang S, Hu S, Chen Y, Ren J. ER-Mitochondria Microdomains in Cardiac Ischemia-Reperfusion Injury: A Fresh Perspective. Front Physiol 2018; 9:755. [PMID: 29962971 PMCID: PMC6013587 DOI: 10.3389/fphys.2018.00755] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/29/2018] [Indexed: 12/22/2022] Open
Abstract
The mitochondrial and endoplasmic reticulum (ER) homeostasis is pivotal to the maintenance of an array of physiological processes. The physical contact and association between ER and mitochondria, known as the ER–mitochondria microdomains or mitochondria-associated ER membrane (MAM), temporally and spatially regulates the mitochondria/ER structure and function. More evidence suggests a role for MAMs in energy production, cellular contraction and mobility, and normal extracellular signal transmission. In pathological states, such as cardiac ischemia–reperfusion (I/R injury), this ER–mitochondria microdomains may act to participate in the cellular redox imbalance, ER stress, mitochondrial injury, energy deletion, and programmed cell death. From a therapeutic perspective, a better understanding of the cellular and molecular mechanisms of the pathogenic ER–mitochondria contact should help to identify potential therapeutic target for cardiac I/R injury and other cardiovascular diseases and also pave the road to new treatment modalities pertinent for the treatment of reperfusion damage in clinical practice. This review will mainly focus on the possible signaling pathways involved in the regulation of the ER–mitochondria contact. In particular, we will summarize the downstream signaling modalities influenced by ER–mitochondria microdomains, for example, mitochondrial fission, mitophagy, calcium balance, oxidative stress, and programmed cell death in details.
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Affiliation(s)
- Hao Zhou
- Chinese People's Liberation Army General Hospital, People's Liberation Army Medical School, Beijing, China.,Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY, United States
| | - Shuyi Wang
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY, United States
| | - Shunying Hu
- Chinese People's Liberation Army General Hospital, People's Liberation Army Medical School, Beijing, China
| | - Yundai Chen
- Chinese People's Liberation Army General Hospital, People's Liberation Army Medical School, Beijing, China
| | - Jun Ren
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY, United States.,Department of Cardiology, Zhong Shan Hospital, Fudan University, Shanghai, China
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Zhou H, Wang J, Zhu P, Zhu H, Toan S, Hu S, Ren J, Chen Y. NR4A1 aggravates the cardiac microvascular ischemia reperfusion injury through suppressing FUNDC1-mediated mitophagy and promoting Mff-required mitochondrial fission by CK2α. Basic Res Cardiol 2018; 113:23. [DOI: 10.1007/s00395-018-0682-1] [Citation(s) in RCA: 247] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 04/09/2018] [Accepted: 04/30/2018] [Indexed: 12/22/2022]
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