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Parletta AC, Cerri GC, Gasparini CRB, Panico K, Vieira-Junior DN, Zacarias-Rodrigues LM, Senger N, de Almeida Silva A, Fevereiro M, Diniz GP, Irigoyen MCC, Barreto-Chaves MLM. Cardiac hypertrophy that affects hyperthyroidism occurs independently of the NLRP3 inflammasome. Pflugers Arch 2024; 476:1065-1075. [PMID: 38679646 DOI: 10.1007/s00424-024-02965-6] [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: 01/04/2024] [Revised: 03/26/2024] [Accepted: 04/16/2024] [Indexed: 05/01/2024]
Abstract
Cardiac hypertrophy (CH) is an adaptive response to maintain cardiac function; however, persistent stress responses lead to contractile dysfunction and heart failure. Although inflammation is involved in these processes, the mechanisms that control cardiac inflammation and hypertrophy still need to be clarified. The NLRP3 inflammasome is a cytosolic multiprotein complex that mediates IL-1β production. The priming step of NLRP3 is essential for increasing the expression of its components and occurs following NF-κB activation. Hyperthyroidism triggers CH, which can progress to maladaptive CH and even heart failure. We have shown in a previous study that thyroid hormone (TH)-induced CH is linked to the upregulation of S100A8, leading to NF-κB activation. Therefore, we aimed to investigate whether the NLRP3 inflammasome is involved in TH-induced CH and its potential role in CH pathophysiology. Hyperthyroidism was induced in NLRP3 knockout (NLRP3-KO), Caspase-1-KO and Wild Type (WT) male mice of the C57Bl/6J strain, aged 8-12 weeks, by triiodothyronine (7 μg/100 g BW, i.p.) administered daily for 14 days. Morphological and cardiac functional analysis besides molecular assays showed, for the first time, that TH-induced CH is accompanied by reduced NLRP3 expression in the heart and that it occurs independently of the NLRP3 inflammasome and caspase 1-related pathways. However, NLRP3 is important for the maintenance of basal cardiac function since NLRP3-KO mice had impaired diastolic function and reduced heart rate, ejection fraction, and fractional shortening compared with WT mice.
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Affiliation(s)
- Aline Cristina Parletta
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
| | - Gabriela Cavazza Cerri
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
| | - Claudia Ribeiro Borba Gasparini
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
| | - Karine Panico
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
| | - Denival Nascimento Vieira-Junior
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
| | - Larissa Maria Zacarias-Rodrigues
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
| | - Nathalia Senger
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
| | - Amanda de Almeida Silva
- Department of Cardiopneumology, Heart Institute, Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Marina Fevereiro
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
| | - Gabriela Placoná Diniz
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil
- Center for Regenerative Medicine, University of South Florida Health Heart Institute, Morsani School of Medicine, University of South Florida, Tampa, FL, USA
| | - Maria Cláudia Costa Irigoyen
- Department of Cardiopneumology, Heart Institute, Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Maria Luiza Morais Barreto-Chaves
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415, Butanta, Sao Paulo, 05508-000, Brazil.
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Abudureyimu M, Luo X, Jiang L, Jin X, Pan C, Yu W, Ge J, Zhang Y, Ren J. FBXL4 protects against HFpEF through Drp1-Mediated regulation of mitochondrial dynamics and the downstream SERCA2a. Redox Biol 2024; 70:103081. [PMID: 38359748 PMCID: PMC10878117 DOI: 10.1016/j.redox.2024.103081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/17/2024] Open
Abstract
AIMS Heart failure with preserved ejection fraction (HFpEF) is a devastating health issue although limited knowledge is available for its pathogenesis and therapeutics. Given the perceived involvement of mitochondrial dysfunction in HFpEF, this study was designed to examine the role of mitochondrial dynamics in the etiology of HFpEF. METHOD AND RESULTS Adult mice were placed on a high fat diet plus l-NAME in drinking water ('two-hit' challenge to mimic obesity and hypertension) for 15 consecutive weeks. Mass spectrometry revealed pronounced changes in mitochondrial fission protein Drp1 and E3 ligase FBXL4 in 'two-hit' mouse hearts. Transfection of FBXL4 rescued against HFpEF-compromised diastolic function, cardiac geometry, and mitochondrial integrity without affecting systolic performance, in conjunction with altered mitochondrial dynamics and integrity (hyperactivation of Drp1 and unchecked fission). Mass spectrometry and co-IP analyses unveiled an interaction between FBXL4 and Drp1 to foster ubiquitination and degradation of Drp1. Truncated mutants of FBXL4 (Delta-Fbox) disengaged interaction between FBXL4 and Drp1. Metabolomic and proteomics findings identified deranged fatty acid and glucose metabolism in HFpEF patients and mice. A cellular model was established with concurrent exposure of high glucose and palmitic acid as a 'double-damage' insult to mimic diastolic anomalies in HFpEF. Transfection of FBXL4 mitigated 'double-damage'-induced cardiomyocyte diastolic dysfunction and mitochondrial injury, the effects were abolished and mimicked by Drp1 knock-in and knock-out, respectively. HFpEF downregulated sarco(endo)plasmic reticulum (SR) Ca2+ uptake protein SERCA2a while upregulating phospholamban, RYR1, IP3R1, IP3R3 and Na+-Ca2+ exchanger with unaltered SR Ca2+ load. FBXL4 ablated 'two-hit' or 'double-damage'-induced changes in SERCA2a, phospholamban and mitochondrial injury. CONCLUSION FBXL4 rescued against HFpEF-induced cardiac remodeling, diastolic dysfunction, and mitochondrial injury through reverting hyperactivation of Drp1-mediated mitochondrial fission, underscoring the therapeutic promises of FBXL4 in HFpEF.
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Affiliation(s)
- Miyesaier Abudureyimu
- Cardiovascular Department, Shanghai Xuhui Central Hospital, Fudan University, Shanghai, 200031, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Xuanming Luo
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China; Department of General Surgery, Shanghai Xuhui Central Hospital, Fudan University, Shanghai, 200031, China
| | - Lingling Jiang
- Cardiovascular Department, Shanghai Xuhui Central Hospital, Fudan University, Shanghai, 200031, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Xuejuan Jin
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China
| | - Cuizhen Pan
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China
| | - Wei Yu
- Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
| | - Junbo Ge
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China
| | - Yingmei Zhang
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China
| | - Jun Ren
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China.
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Pei Z, Xiong Y, Jiang S, Guo R, Jin W, Tao J, Zhang Z, Zhang Y, Zou Y, Gong Y, Ren J. Heavy Metal Scavenger Metallothionein Rescues Against Cold Stress-Evoked Myocardial Contractile Anomalies Through Regulation of Mitophagy. Cardiovasc Toxicol 2024; 24:85-101. [PMID: 38356081 DOI: 10.1007/s12012-023-09823-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/24/2023] [Indexed: 02/16/2024]
Abstract
Cold stress prompts an increased prevalence of cardiovascular morbidity yet the underneath machinery remains unclear. Oxidative stress and autophagy appear to contribute to cold stress-induced cardiac anomalies. Our present study evaluated the effect of heavy metal antioxidant metallothionein on cold stress (4 °C)-induced in cardiac remodeling and contractile anomalies and cell signaling involved including regulation of autophagy and mitophagy. Cold stress (3 weeks) prompted interstitial fibrosis, mitochondrial damage (mitochondrial membrane potential and TEM ultrastructure), oxidative stress (glutathione, reactive oxygen species and superoxide), lipid peroxidation, protein injury, elevated left ventricular (LV) end systolic and diastolic diameters, decreased fractional shortening, ejection fraction, Langendorff heart function, cardiomyocyte shortening, maximal velocities of shortening/relengthening, and electrically stimulated intracellular Ca2+ rise along with elongated relaxation duration and intracellular Ca2+ clearance, the responses of which were overtly attenuated or mitigated by metallothionein. Levels of apoptosis, cell death (Bax and loss of Bcl2, IL-18), and autophagy (LC3BII-to-LC3BI ratio, Atg7 and Beclin-1) were overtly upregulated with comparable p62 under cold stress. Cold stress also evoked elevated mitophagy (decreased TOM20, increased Parkin and FUNDC1 with unaltered BNIP3). Cold stress overtly dampened phosphorylation of autophagy/mitophagy inhibitory molecules Akt and mTOR, stimulated and suppressed phosphorylation of ULK1 and eNOS, respectively, in the absence of altered pan protein levels. Cold stress-evoked responses in cell death, autophagy, mitophagy and their regulatory domains were overtly attenuated or ablated by metallothionein. Suppression of autophagy and mitophagy with 3-methyladenine, bafilomycin A1, cyclosporine A, and liensinine rescued hypothermia-instigated cardiomyocyte LC3B puncta formation and mechanical anomalies. Our findings support a protective nature for metallothionein in deep hypothermia-evoked cardiac abnormalities associated with regulation of autophagy and mitophagy.
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Affiliation(s)
- Zhaohui Pei
- The Second Department of Cardiology, Nanchang City Renmin Hospital, Nanchang, 3330009, China.
| | - Yayuan Xiong
- The First Department of Cardiology, Nanchang City Renmin Hospital, Nanchang, 3330009, China
| | - Shasha Jiang
- Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Rui Guo
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
- The Key Laboratory of Zoological Systematics and Application, College of Life Sciences, Hebei University, Baoding, China
| | - Wei Jin
- The Second Department of Cardiology, Nanchang City Renmin Hospital, Nanchang, 3330009, China
| | - Jun Tao
- Department of Cardiovascular Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510000, China
| | - Zhenzhong Zhang
- Shanghai Institute for Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Yingmei Zhang
- Shanghai Institute for Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
- Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai, 200032, China
| | - Yunzeng Zou
- Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
- Shanghai Institute for Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
- Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai, 200032, China
| | - Yan Gong
- The Second Department of Cardiology, Nanchang City Renmin Hospital, Nanchang, 3330009, China
| | - Jun Ren
- Shanghai Institute for Cardiovascular Diseases, Shanghai, 200032, China.
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
- Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai, 200032, China.
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Lv M, Zhu X, You Y, Fan S, Chai R, Cheng T, Xue W, Shi S, Hu Y. Knowledge domain and emerging trends of autophagy in cardiovascular research: A bibliometric analysis. Medicine (Baltimore) 2024; 103:e36811. [PMID: 38215119 PMCID: PMC10783360 DOI: 10.1097/md.0000000000036811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 12/07/2023] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND Autophagy is essential for the homeostasis and function of the cardiovascular system. Citespace is a visual analysis software developed in the context of scientometrics and data visualization. The purpose of this study is to use Citespace software to conduct bibliometric and visual analysis of the research on autophagy in cardiovascular diseases, identify the current status, hot spots and trends in this field, help researchers clarify the future research focus and direction of autophagy in cardiovascular diseases, and provide more positive and broader ideas for the treatment and drug development of cardiovascular diseases. METHODS In the Web of Science Core Collection database to download the data from 2004 to 2022 regarding autophagy in cardiovascular research. CitespaceV was used to collect the research status, hotspots and development trends for visual analysis. RESULTS The 3568 articles were published by 547 authors from 397 institutions in 75 countries. From 2004 to 2021, the annual publications increased over time. The top 3 productive nations were China, the United States, and Germany. The leading institution was China's Fudan University. The most cited paper is Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition). The research hotpots include monitoring methods for autophagy activity, changes in autophagy levels in different types of cardiovascular diseases, autophagy signal transduction mechanism in cardiovascular diseases, etc. CONCLUSION Bibliometric analysis provided valuable information for autophagy research in cardiovascular disease, which is full of opportunities and challenges. The research of autophagy in the field of cardiovascular diseases is still worthy of in-depth exploration. A challenge with autophagy-targeted therapies is their dichotomy in which the goal is to target maladaptive autophagy while maintaining a baseline level of cell survival to optimize a beneficial outcome. It is necessary for scientists to develop new methods to evaluate the level of autophagy from basic application to human body and reveal the signaling mechanism of autophagy in different types of cardiovascular diseases.
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Affiliation(s)
- Meng Lv
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xueping Zhu
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yaping You
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shaowei Fan
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ruoning Chai
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tao Cheng
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wenjing Xue
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shuai Shi
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuanhui Hu
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Abudureyimu M, Yang M, Wang X, Luo X, Ge J, Peng H, Zhang Y, Ren J. Berberine alleviates myocardial diastolic dysfunction by modulating Drp1-mediated mitochondrial fission and Ca 2+ homeostasis in a murine model of HFpEF. Front Med 2023; 17:1219-1235. [PMID: 37656418 DOI: 10.1007/s11684-023-0983-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 01/05/2023] [Indexed: 09/02/2023]
Abstract
Heart failure with preserved ejection fraction (HFpEF) displays normal or near-normal left ventricular ejection fraction, diastolic dysfunction, cardiac hypertrophy, and poor exercise capacity. Berberine, an isoquinoline alkaloid, possesses cardiovascular benefits. Adult male mice were assigned to chow or high-fat diet with L-NAME ("two-hit" model) for 15 weeks. Diastolic function was assessed using echocardiography and noninvasive Doppler technique. Myocardial morphology, mitochondrial ultrastructure, and cardiomyocyte mechanical properties were evaluated. Proteomics analysis, autophagic flux, and intracellular Ca2+ were also assessed in chow and HFpEF mice. The results show exercise intolerance and cardiac diastolic dysfunction in "two-hit"-induced HFpEF model, in which unfavorable geometric changes such as increased cell size, interstitial fibrosis, and mitochondrial swelling occurred in the myocardium. Diastolic dysfunction was indicated by the elevated E value, mitral E/A ratio, and E/e' ratio, decreased e' value and maximal velocity of re-lengthening (-dL/dt), and prolonged re-lengthening in HFpEF mice. The effects of these processes were alleviated by berberine. Moreover, berberine ameliorated autophagic flux, alleviated Drp1 mitochondrial localization, mitochondrial Ca2+ overload and fragmentation, and promoted intracellular Ca2+ reuptake into sarcoplasmic reticulum by regulating phospholamban and SERCA2a. Finally, berberine alleviated diastolic dysfunction in "two-hit" diet-induced HFpEF model possibly because of the promotion of autophagic flux, inhibition of mitochondrial fragmentation, and cytosolic Ca2+ overload.
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Affiliation(s)
- Miyesaier Abudureyimu
- Cardiovascular Department, Shanghai Xuhui Central Hospital, Fudan University, Shanghai, 200031, China
| | - Mingjie Yang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Xiang Wang
- Cardiovascular Department, Shanghai Xuhui Central Hospital, Fudan University, Shanghai, 200031, China
| | - Xuanming Luo
- Department of General Surgery, Shanghai Xuhui Central Hospital, Fudan University, Shanghai, 200031, China
| | - Junbo Ge
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China.
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
| | - Hu Peng
- Department of Geriatrics, Shanghai Tenth Hospital, Tongji University, Shanghai, 200072, China.
| | - Yingmei Zhang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China.
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
| | - Jun Ren
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China.
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
- Department of Medical Laboratory and Pathology, University of Washington, Seattle, WA, 98195, USA.
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Yu W, Xu H, Sun Z, Du Y, Sun S, Abudureyimu M, Zhang M, Tao J, Ge J, Ren J, Zhang Y. TBC1D15 deficiency protects against doxorubicin cardiotoxicity via inhibiting DNA-PKcs cytosolic retention and DNA damage. Acta Pharm Sin B 2023; 13:4823-4839. [PMID: 38045047 PMCID: PMC10692480 DOI: 10.1016/j.apsb.2023.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/28/2023] [Accepted: 08/09/2023] [Indexed: 12/05/2023] Open
Abstract
Clinical application of doxorubicin (DOX) is heavily hindered by DOX cardiotoxicity. Several theories were postulated for DOX cardiotoxicity including DNA damage and DNA damage response (DDR), although the mechanism(s) involved remains to be elucidated. This study evaluated the potential role of TBC domain family member 15 (TBC1D15) in DOX cardiotoxicity. Tamoxifen-induced cardiac-specific Tbc1d15 knockout (Tbc1d15CKO) or Tbc1d15 knockin (Tbc1d15CKI) male mice were challenged with a single dose of DOX prior to cardiac assessment 1 week or 4 weeks following DOX challenge. Adenoviruses encoding TBC1D15 or containing shRNA targeting Tbc1d15 were used for Tbc1d15 overexpression or knockdown in isolated primary mouse cardiomyocytes. Our results revealed that DOX evoked upregulation of TBC1D15 with compromised myocardial function and overt mortality, the effects of which were ameliorated and accentuated by Tbc1d15 deletion and Tbc1d15 overexpression, respectively. DOX overtly evoked apoptotic cell death, the effect of which was alleviated and exacerbated by Tbc1d15 knockout and overexpression, respectively. Meanwhile, DOX provoked mitochondrial membrane potential collapse, oxidative stress and DNA damage, the effects of which were mitigated and exacerbated by Tbc1d15 knockdown and overexpression, respectively. Further scrutiny revealed that TBC1D15 fostered cytosolic accumulation of the cardinal DDR element DNA-dependent protein kinase catalytic subunit (DNA-PKcs). Liquid chromatography-tandem mass spectrometry and co-immunoprecipitation denoted an interaction between TBC1D15 and DNA-PKcs at the segment 594-624 of TBC1D15. Moreover, overexpression of TBC1D15 mutant (∆594-624, deletion of segment 594-624) failed to elicit accentuation of DOX-induced cytosolic retention of DNA-PKcs, DNA damage and cardiomyocyte apoptosis by TBC1D15 wild type. However, Tbc1d15 deletion ameliorated DOX-induced cardiomyocyte contractile anomalies, apoptosis, mitochondrial anomalies, DNA damage and cytosolic DNA-PKcs accumulation, which were canceled off by DNA-PKcs inhibition or ATM activation. Taken together, our findings denoted a pivotal role for TBC1D15 in DOX-induced DNA damage, mitochondrial injury, and apoptosis possibly through binding with DNA-PKcs and thus gate-keeping its cytosolic retention, a route to accentuation of cardiac contractile dysfunction in DOX-induced cardiotoxicity.
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Affiliation(s)
- Wenjun Yu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China
| | - Haixia Xu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
- Department of Cardiology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Zhe Sun
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Yuxin Du
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Shiqun Sun
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Miyesaier Abudureyimu
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
- Cardiovascular Department, Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Fudan University, Shanghai 200030, China
| | - Mengjiao Zhang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Jun Tao
- Department of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510000, China
| | - Junbo Ge
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Jun Ren
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Yingmei Zhang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
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Xu H, Wang X, Yu W, Sun S, Wu NN, Ge J, Ren J, Zhang Y. Syntaxin 17 Protects Against Heart Failure Through Recruitment of CDK1 to Promote DRP1-Dependent Mitophagy. JACC Basic Transl Sci 2023; 8:1215-1239. [PMID: 37791317 PMCID: PMC10544097 DOI: 10.1016/j.jacbts.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 10/05/2023]
Abstract
Mitochondrial dysfunction is suggested to be a major contributor for the progression of heart failure (HF). Here we examined the role of syntaxin 17 (STX17) in the progression of HF. Cardiac-specific Stx17 knockout manifested cardiac dysfunction and mitochondrial damage, associated with reduced levels of p(S616)-dynamin-related protein 1 (DRP1) in mitochondria-associated endoplasmic reticulum membranes and dampened mitophagy. Cardiac STX17 overexpression promoted DRP1-dependent mitophagy and attenuated transverse aortic constriction-induced contractile and mitochondrial damage. Furthermore, STX17 recruited cyclin-dependent kinase-1 through its SNARE domain onto mitochondria-associated endoplasmic reticulum membranes, to phosphorylate DRP1 at Ser616 and promote DRP1-mediated mitophagy upon transverse aortic constriction stress. These findings indicate the potential therapeutic benefit of targeting STX17 in the mitigation of HF.
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Affiliation(s)
- Haixia Xu
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Cardiology, Affiliated Hospital of Nantong University, Jiangsu, China
| | - Xiang Wang
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wenjun Yu
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Shiqun Sun
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ne N. Wu
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jun Ren
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
| | - Yingmei Zhang
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China
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8
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Chen Z, Gu Q, Chen R. miR-146a-5p regulates autophagy and NLRP3 inflammasome activation in epithelial barrier damage in the in vitro cell model of ulcerative colitis through the RNF8/Notch1/mTORC1 pathway. Immunobiology 2023; 228:152386. [PMID: 37329823 DOI: 10.1016/j.imbio.2023.152386] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory disease affecting the colon that can be influenced by microRNAs (miRNAs). This study aims to investigate the impact of miR-146a-5p on lipopolysaccharide (LPS)-induced Caco-2/HT-29 cell autophagy and NLRP3 inflammasome activation and the underlying mechanism, with the aim of identifying potential therapeutic targets. We used LPS to establish Caco-2/HT-29 cell models and measured cell viability by CCK-8. The levels of miR-146a-5p, RNF8, markers of NLRP3 inflammasome activation and autophagy, proteins involved in the Notch1/mTORC1 pathway, and inflammatory factors were assessed by RT-qPCR, Western blot, and ELISA. Intestinal epithelial barrier function was evaluated by measuring transepithelial electrical resistance. Autophagic flux was measured using tandem fluorescent-labeled LC3. miR-146a-5p was highly-expressed in LPS-induced Caco-2/HT-29 cells, and autophagy flux was blocked at the autolysosomal stage after LPS induction. Inhibition of miR-146a-5p suppressed NLRP3 inflammasome activation, reduced intestinal epithelial barrier damage, and facilitated autophagy inhibition in LPS-induced Caco-2/HT-29 cells. The autophagy inhibitor NH4Cl partially nullified the inhibitory effects of miR-146a-5p inhibition on NLRP3 inflammation activation. miR-146a-5p targeted RNF8, and silencing RNF8 partly abrogated the action of miR-146a-5p inhibition on promoting autophagy and inhibiting NLRP3 inflammasome activation. miR-146a-5p inhibition suppressed the Notch1/mTORC1 pathway activation by upregulating RNF8. Inhibition of the Notch1/mTORC1 pathway partially nullified the function of silencing RNF8 on inhibiting autophagy and bolstering NLRP3 inflammasome activation. In conclusion, miR-146a-5p inhibition may be a potential therapeutic approach for UC, as it facilitates autophagy of LPS-stimulated Caco-2/HT-29 cells, inhibits NLRP3 inflammasome activation, and reduces intestinal epithelial barrier damage by upregulating RNF8 and suppressing the Notch1/mTORC1 pathway.
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Affiliation(s)
- Zepeng Chen
- Department of Anorectal Surgery, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, China; First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Qinglong Gu
- Department of Anorectal Surgery, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, China; First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Ruichao Chen
- Department of Anorectal Surgery, Xuzhou City Hospital of TCM, Xuzhou, Jiangsu 221000, China.
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9
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Zhang Y, Tu J, Li Y, Wang Y, Lu L, Wu C, Yu XY, Li Y. Inflammation macrophages contribute to cardiac homeostasis. CARDIOLOGY PLUS 2023. [DOI: 10.1097/cp9.0000000000000035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
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10
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Xu H, Yu W, Sun M, Bi Y, Wu NN, Zhou Y, Yang Q, Zhang M, Ge J, Zhang Y, Ren J. Syntaxin17 contributes to obesity cardiomyopathy through promoting mitochondrial Ca 2+ overload in a Parkin-MCUb-dependent manner. Metabolism 2023; 143:155551. [PMID: 36948287 DOI: 10.1016/j.metabol.2023.155551] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/03/2023] [Accepted: 03/17/2023] [Indexed: 03/24/2023]
Abstract
OBJECTIVE Uncorrected obesity is accompanied by unfavorable structural and functional changes in the heart, known as obesity cardiomyopathy. Recent evidence has revealed a crucial role for mitochondria-associated endoplasmic reticulum membranes (MAMs) in obesity-induced cardiac complication. Syntaxin 17 (STX17) serves as a scaffolding molecule localized on MAMs although its role in obesity heart complication remains elusive. METHODS AND MATERIALS This study examined the role of STX17 in MAMs and mitochondrial Ca2+ homeostasis in HFD-induced obesity cardiomyopathy using tamoxifen-induced cardiac-specific STX17 knockout (STX17cko) and STX17 overexpression mice using intravenously delivered recombinant adeno-associated virus serotype-9 (AAV9-cTNT-STX17). RESULTS STX17 levels were significantly elevated in plasma from obese patients and heart tissues of HFD-fed mice. Our data revealed that cardiac STX17 knockout alleviated cardiac remodeling and dysfunction in obese hearts without eliciting any notable effect itself, while STX17 overexpression aggravated cardiac dysfunction in obese mice. STX17 deletion and STX17 overexpression annihilated and aggravated, respectively, HFD-induced oxidative stress (O2- production) and mitochondrial injury in the heart. Furthermore, STX17 transfection facilitated obesity-induced MAMs formation in cardiomyocytes and evoked excess mitochondrial Ca2+ influx, dependent upon interaction with mitochondrial Ca2+ uniporter dominant negative β (MCUb) through Habc domain. Our data also suggested that STX17 promoted ubiquitination and degradation of MCUb through the E3 ligase parkin in the face of palmitate challenging. CONCLUSION Taken together, our results identified a novel role for STX17 in facilitating obesity-induced MAMs formation, and subsequently mitochondrial Ca2+ overload, mitochondrial O2- accumulation, lipid peroxidation, resulting in cardiac impairment. Our findings denoted therapeutic promises of targeting STX17 in obesity.
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Affiliation(s)
- Haixia Xu
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China; Department of Cardiology, Affiliated Hospital of Nantong University, Jiangsu, 226001, China
| | - Wenjun Yu
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China; Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China
| | - Mingming Sun
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Yaguang Bi
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Ne N Wu
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Yuan Zhou
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Qi Yang
- Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Mengjiao Zhang
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Junbo Ge
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China.
| | - Yingmei Zhang
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China.
| | - Jun Ren
- Department of Cardiology, Zhongshan Hospital, Fudan University, China; Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA.
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11
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Wu NN, Wang L, Wang L, Xu X, Lopaschuk GD, Zhang Y, Ren J. Site-specific ubiquitination of VDAC1 restricts its oligomerization and mitochondrial DNA release in liver fibrosis. Exp Mol Med 2023; 55:269-280. [PMID: 36658227 PMCID: PMC9898252 DOI: 10.1038/s12276-022-00923-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 01/20/2023] Open
Abstract
Mitochondrial DNA (mtDNA) released through protein oligomers, such as voltage-dependent anion channel 1 (VDAC1), triggers innate immune activation and thus contributes to liver fibrosis. Here, we investigated the role of Parkin, an important regulator of mitochondria, and its regulation of VDAC1-mediated mtDNA release in liver fibrosis. The circulating mitochondrial DNA (mtDNA) and protein levels of liver Parkin and VDAC1 were upregulated in patients with liver fibrosis. A 4-week CCl4 challenge induced release of mtDNA, activation of STING signaling, a decline in autophagy, and apoptosis in mouse livers, and the knockout of Parkin aggravated these effects. In addition, Parkin reduced mtDNA release and prevented VDAC1 oligomerization in a manner dependent on its E3 activity in hepatocytes. We found that site-specific ubiquitination of VDAC1 at lysine 53 by Parkin interrupted VDAC1 oligomerization and prevented mtDNA release into the cytoplasm under stress. The ubiquitination-defective VDAC1 K53R mutant predominantly formed oligomers that resisted suppression by Parkin. Hepatocytes expressing VDAC1 K53R exhibited mtDNA release and thus activated the STING signaling pathway in hepatic stellate cells, and this effect could not be abolished by Parkin. We propose that the ubiquitination of VDAC1 at a specific site by Parkin confers protection against liver fibrosis by interrupting VDAC1 oligomerization and mtDNA release.
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Affiliation(s)
- Ne N. Wu
- grid.413087.90000 0004 1755 3939Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, 200032 China ,National Clinical Research Center for Interventional Medicine, Shanghai, 200032 China
| | - Lifeng Wang
- grid.13394.3c0000 0004 1799 3993Department of Physiology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang 830000 China
| | - Lu Wang
- grid.233520.50000 0004 1761 4404Institute of Digestive Diseases, Xijing Hospital, Air Force Medical University, Xi’an, 710032 China ,grid.233520.50000 0004 1761 4404State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Air Force Medical University, Xi’an, 710032 China
| | - Xihui Xu
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032 China
| | - Gary D. Lopaschuk
- grid.17089.370000 0001 2190 316XCardiovascular Research Centre, University of Alberta, Edmonton, Alberta T6G 2S2 Canada
| | - Yingmei Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, 200032, China. .,National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, 200032, China. .,National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China. .,Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA.
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12
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Qin X, Fei J, Duan Y, Ceylan AF, Zhang F, Ren J. Beclin1 haploinsufficiency compromises mesenchymal stem cell-offered cardioprotection against myocardial infarction. CELL REGENERATION 2022; 11:21. [PMID: 35650374 PMCID: PMC9160171 DOI: 10.1186/s13619-022-00121-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/24/2022] [Indexed: 11/10/2022]
Abstract
Mesenchymal stem cells (MSCs)-based therapy has displayed some promises in ischemia heart diseases although its efficacy may be affected by changes in surrounding environments. This study evaluated the role of autophagy insufficiency using Beclin1 haploinsufficiency (BECN+/−) on intra-myocardial MSC transplantation-evoked effect against myocardial infarction. Donor MSCs from C57BL/6 mice were labelled with cell-tracker CM Dil and were delivered into LV free wall adjacent to infarct region in wild-type (WT) and BECN+/− recipient mice following ligation of left main coronary artery (MI-MSCs). Ten days following MI, myocardial function was assessed using echocardiography. Cardiomyocyte contractility and intracellular Ca2+ were monitored using cardiomyocytes from the area-at-risk adjacent to infarct. CM-Dil labeled cells were tracked in MSCs recipient mice using fluorescence microscopy. Lectin, Masson trichrome staining and Western blot analysis were employed to determine cardiomyocyte area, scar fibrosis, apoptosis and inflammation. MI insult triggered scar fibrosis, LV chamber dilation, decreased fractional shortening, ejection fraction, cardiomyocyte shortening, maximal velocity of shortening and relengthening as well as prolonged relengthening, which were abrogated or attenuated by MSCs therapy in WT but not BECN+/− mice. MI decreased intracellular Ca2+ rise and decay in response to electrical stimuli without affecting resting intracellular Ca2+, which were reconciled by MSCs in WT but not BECN+/− mice. MSCs further attenuated MI-induced mitochondrial ultrastructural injury, apoptosis, inflammation and autophagy defects in peri-infarct area in WT but not BECN+/− mice. Collectively, our results suggested that autophagy insufficiency dampened in MSCs-elicited cardioprotection associated with dampened apoptosis and inflammation.
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13
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Zhu Y, Gu Z, Shi J, Chen C, Xu H, Lu Q. Vaspin Attenuates Atrial Abnormalities by Promoting ULK1/FUNDC1-Mediated Mitophagy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3187463. [PMID: 36425056 PMCID: PMC9681551 DOI: 10.1155/2022/3187463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 09/19/2022] [Indexed: 08/24/2023]
Abstract
The worldwide incidence and prevalence of atrial fibrillation (AF) are increasing, making it a life-threatening condition due to the higher numbers of people suffering from obesity. Vaspin, an adipokine derived from epicardial adipose tissue, has been reported to reduce inflammation, inhibit apoptosis, and induce autophagy; however, its role in the pathogenesis of AF is not known. In this study, we investigated the role of vaspin in patients with AF and explored the molecular mechanisms using atrial myocytes in vitro. Our data showed that vaspin levels were significantly reduced in the plasma of patients with AF. Lower plasma levels of vaspin were also associated with a higher risk of AF in patients with obesity. Vaspin treatment in vitro alleviated cardiomyocyte injury, atrial fibrosis, atrial myocyte apoptosis, and mitochondrial injury in atrial myocytes following Ang-II stress. Moreover, our results demonstrated that vaspin protected against Ang-II-induced atrial myocyte dysfunction by inducing mitophagy. We also observed that vaspin treatment enhanced the phosphorylation of Fun14 domain-containing protein 1 (FUNDC1) at Ser17 by unc-51 like autophagy activating kinase 1 (ULK1), resulting in the induction of mitophagy. These positive effects of vaspin were reversed by ULK1 silencing in Ang-II-stimulated HL-1 cells. Our study is the first to propose that vaspin plays a vital role in AF pathogenesis via ULK1/FUNDC1-regulated mitophagy and could be a novel therapeutic target for AF.
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Affiliation(s)
- Yanmin Zhu
- Department of Cardiology, Affiliated Hospital of Nantong University, Jiangsu 226001, China
- Department of Cardiology, The First Peoples' Hospital of Taicang, The Affiliated Taicang Hospital of Soochow University, Taicang, Jiangshu 215300, China
| | - Zhoushan Gu
- Department of Cardiology, Affiliated Hospital of Nantong University, Jiangsu 226001, China
| | - Jiayu Shi
- Department of Cardiology, Affiliated Hospital of Nantong University, Jiangsu 226001, China
| | - Chu Chen
- Department of Cardiology, Affiliated Hospital of Nantong University, Jiangsu 226001, China
| | - Haixia Xu
- Department of Cardiology, Affiliated Hospital of Nantong University, Jiangsu 226001, China
| | - Qi Lu
- Department of Cardiology, Affiliated Hospital of Nantong University, Jiangsu 226001, China
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14
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Liu Y, You F, Song G, Ceylan AF, Deng Q, Jin W, Min J, Burd L, Ren J, Pei Z. Deficiency in Beclin1 attenuates alcohol-induced cardiac dysfunction via inhibition of ferroptosis. Biochim Biophys Acta Gen Subj 2022; 1866:130245. [PMID: 36126834 DOI: 10.1016/j.bbagen.2022.130245] [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: 08/16/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Binge drinking leads to compromised mitochondrial integrity and contractile function in the heart although little effective remedy is readily available. Given the possible derangement of autophagy in ethanol-induced cardiac anomalies, this study was designed to examine involvement of Beclin1 in acute ethanol-induced cardiac contractile dysfunction, in any, and the impact of Beclin1 haploinsufficiency on ethanol cardiotoxicity with a focus on autophagy-related ferroptosis. METHODS WT and Beclin1 haploinsufficiency (BECN+/-) mice were challenged with ethanol for one week (2 g/kg, i.p. on day 1, 3 and 7) prior to assessment of cardiac injury markers (LDH, CK-MB), cardiac geometry, contractile and mitochondrial integrity, oxidative stress, lipid peroxidation, apoptosis and ferroptosis. RESULTS Ethanol exposure compromised cardiac geometry and contractile function accompanied with upregulated Beclin1 and autophagy, mitochondrial injury, oxidative stress, lipid peroxidation and apoptosis, and ferroptosis (GPx4, SLC7A11, NCOA4). Although Beclin1 deficiency did not affect cardiac function in the absence of ethanol challenge, it alleviated ethanol-induced changes in cardiac injury biomarkers, cardiomyocyte area, interstitial fibrosis, echocardiographic and cardiomyocyte mechanical properties along with mitochondrial integrity, oxidative stress, lipid peroxidation, apoptosis and ferroptosis. Ethanol challenge evoked pronounced ferroptosis (downregulated GPx4, SLC7A11 and elevated NCOA4, lipid peroxidation), the effect was alleviated by Beclin1 haploinsufficiency. Inhibition of ferroptosis using LIP-1 rescued ethanol-induced cardiac mechanical anomalies. In vitro study noted that ferroptosis induction using erastin abrogated Beclin1 haploinsufficiency-induced response against ethanol. CONCLUSIONS In sum, our data suggest that Beclin1 haploinsufficiency benefits acute ethanol challenge-induced myocardial remodeling and contractile dysfunction through ferroptosis-mediated manner.
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Affiliation(s)
- Yandong Liu
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 330009, China
| | - Fei You
- Department of Cardiology, Xi'an Central Hospital, Xi'an 710003, China
| | - Guoliang Song
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 330009, China
| | - Asli F Ceylan
- Ankara Yildirim Beyazit University, Faculty of Medicine, Department of Medical Pharmacology, Bilkent, Ankara, Turkey
| | - Qinqin Deng
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 330009, China
| | - Wei Jin
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 330009, China
| | - Jie Min
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 330009, China
| | - Larry Burd
- Department of Pediatrics, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, USA
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
| | - Zhaohui Pei
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 330009, China.
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15
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Sun S, Yu W, Xu H, Li C, Zou R, Wu NN, Wang L, Ge J, Ren J, Zhang Y. TBC1D15-Drp1 interaction-mediated mitochondrial homeostasis confers cardioprotection against myocardial ischemia/reperfusion injury. Metabolism 2022; 134:155239. [PMID: 35680100 DOI: 10.1016/j.metabol.2022.155239] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 05/17/2022] [Accepted: 06/03/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Mitochondria are essential for myocardial ischemia/reperfusion (I/R) injury. TBC domain family member 15 (TBC1D15) participates in the regulation of mitochondrial homeostasis although its role remains elusive in I/R injury. METHODS AND MATERIALS This study examined the role of TBC1D15 in mitochondrial homeostasis under myocardial I/R injury using inducible cardiac-specific TBC1D15 knockin (TBC1D15CKI) and knockout (TBC1D15CKO) mice. RESULTS TBC1D15 mRNA/protein levels were downregulated in human ischemic cardiomyopathy samples, mouse I/R hearts and neonatal mouse cardiomyocytes with H/R injury, consistent with scRNA sequencing finding from patients with coronary heart disease. Cardiac-specific knockin of TBC1D15 attenuated whereas cardiac-specific knockout of TBC1D15 overtly aggravated I/R-induced cardiomyocyte apoptosis and cardiac dysfunction. TBC1D15CKI mice exhibited reduced mitochondrial damage and mitochondrial fragmentation following myocardial I/R injury, while TBC1D15CKO mice displayed opposite results. TBC1D15 preserved mitochondrial function evidenced by safeguarding MMP and oxygen consumption capacity, antagonizing ROS accumulation and cytochrome C release, which were nullified by TBC1D15 knockdown. Time-lapse confocal microscopy revealed that TBC1D15 activated asymmetrical mitochondrial fission through promoting mitochondria-lysosome contacts untethering in NMCMs under H/R injury, whereas overexpression of TBC1D15 mutants (R400K and ∆231-240) failed to regulate asymmetrical fission and knockdown of TBC1D15 slowed down asymmetrical fission. Moreover, TBC1D15-offered benefits were mitigated by knockdown of Fis1 and Drp1. Mechanistically, TBC1D15 recruited Drp1 to mitochondria-lysosome contact sites via direct interaction with Drp1 through its C terminus (574-624) domain. Interfering with interaction between TBC1D15 and Drp1 abrogated asymmetrical mitochondrial fission and mitochondrial function. Cardiac phenotypes of TBC1D15CKO mice upon I/R injury were rescued by adenovirus-mediated overexpression of wild-type but not mutants (R400K, ∆231-240 and ∆574-624) TBC1D15. CONCLUSIONS TBC1D15 ameliorated I/R injury through a novel modality to preserve mitochondrial homeostasis where mitochondria-lysosome contacts (through the TBC1D15/Fis1/RAB7 cascade) regulate asymmetrical mitochondrial fission (TBC1D15/Drp1 interaction), suggesting promises of targeting TBC1D15 in the management of myocardial I/R injury.
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Affiliation(s)
- Shiqun Sun
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wenjun Yu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Haixia Xu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Cardiology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Congye Li
- Department of Cardiology, Xijing Hospital, the Air Force Military Medical University, Xi'an 710038, China
| | - Rongjun Zou
- Heart Center, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Ne N Wu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Li Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Junbo Ge
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jun Ren
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA.
| | - Yingmei Zhang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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16
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Wu NN, Bi Y, Ajoolabady A, You F, Sowers J, Wang Q, Ceylan AF, Zhang Y, Ren J. Parkin Insufficiency Accentuates High-Fat Diet-Induced Cardiac Remodeling and Contractile Dysfunction Through VDAC1-Mediated Mitochondrial Ca 2+ Overload. JACC Basic Transl Sci 2022; 7:779-796. [PMID: 36061337 PMCID: PMC9436824 DOI: 10.1016/j.jacbts.2022.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/16/2022] [Accepted: 03/16/2022] [Indexed: 11/02/2022]
Abstract
Mitochondrial Ca2+ overload contributes to obesity cardiomyopathy, yet mechanisms that directly regulate it remain elusive. The authors investigated the role of Parkin on obesity-induced cardiac remodeling and dysfunction in human hearts and a mouse model of 24-week high-fat diet (HFD) feeding. Parkin knockout aggravated HFD-induced cardiac remodeling and dysfunction, mitochondrial Ca2+ overload, and apoptosis without affecting global metabolism, blood pressure, and aortic stiffness. Parkin deficiency unmasked HFD-induced decline in voltage-dependent anion channel (VDAC) type 1 degradation through the ubiquitin-proteasome system but not other VDAC isoforms or mitochondrial Ca2+ uniporter complex. These data suggest that Parkin-mediated proteolysis of VDAC type 1 is a promising therapeutic target for obesity cardiomyopathy.
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Key Words
- AMCM, adult murine cardiomyocyte
- BP, blood pressure
- Ca2+ overload
- HFD, high-fat diet
- LFD, low-fat diet
- LV, left ventricular
- MCU, mitochondrial Ca2+ uniporter
- PA, palmitic acid
- Parkin
- ROS, reactive oxygen species
- TR90, time to 90% relengthening
- VDAC, voltage-dependent anion channel
- VDAC1
- WT, wild-type
- heart
- high-fat diet
- mPTP, mitochondrial permeability transition pore
- mitochondria
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Affiliation(s)
- Ne N Wu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yaguang Bi
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Amir Ajoolabady
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fei You
- Department of Cardiology, Xi'an Central Hospital, Xi'an, China
| | - James Sowers
- Diabetes and Cardiovascular Research Center, University of Missouri Columbia, Columbia, Missouri, USA
| | - Qiurong Wang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Asli F Ceylan
- Faculty of Medicine, Department of Medical Pharmacology, Ankara Yildirim Beyazit University, Bilkent, Ankara, Turkey
| | - Yingmei Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
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17
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Cell death regulation by MAMs: from molecular mechanisms to therapeutic implications in cardiovascular diseases. Cell Death Dis 2022; 13:504. [PMID: 35624099 PMCID: PMC9142581 DOI: 10.1038/s41419-022-04942-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/04/2022] [Accepted: 05/12/2022] [Indexed: 12/13/2022]
Abstract
The endoplasmic reticulum (ER) and mitochondria are interconnected intracellular organelles with vital roles in the regulation of cell signaling and function. While the ER participates in a number of biological processes including lipid biosynthesis, Ca2+ storage and protein folding and processing, mitochondria are highly dynamic organelles governing ATP synthesis, free radical production, innate immunity and apoptosis. Interplay between the ER and mitochondria plays a crucial role in regulating energy metabolism and cell fate control under stress. The mitochondria-associated membranes (MAMs) denote physical contact sites between ER and mitochondria that mediate bidirectional communications between the two organelles. Although Ca2+ transport from ER to mitochondria is vital for mitochondrial homeostasis and energy metabolism, unrestrained Ca2+ transfer may result in mitochondrial Ca2+ overload, mitochondrial damage and cell death. Here we summarize the roles of MAMs in cell physiology and its impact in pathological conditions with a focus on cardiovascular disease. The possibility of manipulating ER-mitochondria contacts as potential therapeutic approaches is also discussed.
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Peng H, Fu S, Wang S, Xu H, Dhanasekaran M, Chen H, Shao C, Yuanzhuo, Ren J. Ablation of FUNDC1-dependent mitophagy renders myocardium resistant to paraquat-induced ferroptosis and contractile dysfunction. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166448. [DOI: 10.1016/j.bbadis.2022.166448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 02/08/2023]
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19
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Hua Y, Zhang J, Liu Q, Su J, Zhao Y, Zheng G, Yang Z, Zhuo D, Ma C, Fan G. The Induction of Endothelial Autophagy and Its Role in the Development of Atherosclerosis. Front Cardiovasc Med 2022; 9:831847. [PMID: 35402552 PMCID: PMC8983858 DOI: 10.3389/fcvm.2022.831847] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/08/2022] [Indexed: 12/29/2022] Open
Abstract
Increasing attention is now being paid to the important role played by autophagic flux in maintaining normal blood vessel walls. Endothelial cell dysfunction initiates the development of atherosclerosis. In the endothelium, a variety of critical triggers ranging from shear stress to circulating blood lipids promote autophagy. Furthermore, emerging evidence links autophagy to a range of important physiological functions such as redox homeostasis, lipid metabolism, and the secretion of vasomodulatory substances that determine the life and death of endothelial cells. Thus, the promotion of autophagy in endothelial cells may have the potential for treating atherosclerosis. This paper reviews the role of endothelial cells in the pathogenesis of atherosclerosis and explores the molecular mechanisms involved in atherosclerosis development.
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Affiliation(s)
- Yunqing Hua
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jing Zhang
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Qianqian Liu
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jing Su
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yun Zhao
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Guobin Zheng
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Zhihui Yang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Danping Zhuo
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Chuanrui Ma
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Guanwei Fan
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- Tianjin State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Li Y, Hao H, Yu H, Yu L, Ma H, Zhang H. Ginsenoside Rg2 Ameliorates Myocardial Ischemia/Reperfusion Injury by Regulating TAK1 to Inhibit Necroptosis. Front Cardiovasc Med 2022; 9:824657. [PMID: 35391841 PMCID: PMC8981204 DOI: 10.3389/fcvm.2022.824657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/11/2022] [Indexed: 11/13/2022] Open
Abstract
Necroptosis contribute to the pathogenesis of myocardial ischemia/reperfusion (MI/R) injury. Ginsenoside Rg2 has been reported to have cardioprotective effects against MI/R injury; however, the underlying mechanism remains unclear. This work aimed to investigate the effect of ginsenoside Rg2 on necroptosis induced by MI/R and to explore the mechanism. In this study, hypoxia/reoxygenation (H/R) injury model was established in H9c2 cells. In vivo, male C57/BL6 mice were subjected to myocardial ischemia 30 min/reperfusion 4 h. Rg2 (50 mg/kg) or vehicle was intravenously infused 5 min before reperfusion. Cardiac function and the signaling pathway involved in necroptosis were investigated. Compared with H/R group, Rg2 significantly inhibited H/R-induced cardiomyocyte death. Rg2 treatment effectively inhibited the phosphorylation of RIP1, RIP3, and MLKL in H/R cardiomyocytes, and inhibited RIP1/RIP3 complex (necrosome) formation. In mice, Rg2 treatment manifested significantly lower ischemia/reperfusion (I/R)-induced myocardial necroptosis, as evidenced by decrease in phosphorylation of RIP1, RIP3, and MLKL, inhibited lactate dehydrogenase (LDH) release and Evans blue dye (EBD) penetration. Mechanically, an increased level of tumor necrosis factor α (TNFα), interleukin (IL)-1β, IL-6, and MCP-1 were found in MI/R hearts, and Rg2 treatment significantly inhibit the expression of these factors. We found that TNFα-induced phosphorylation of RIP1, RIP3, and MLKL was negatively correlated with transforming growth factor-activated kinase 1 (TAK1) phosphorylation, and inhibition of TAK1 phosphorylation led to necroptosis enhancement. More importantly, Rg2 treatment significantly increased TAK1 phosphorylation, enhanced TAK1 binding to RIP1 while inhibiting RIP1/RIP3 complex, ultimately reducing MI/R-induced necroptosis. These findings highlight a new mechanism of Rg2-induced cardioprotection: reducing the formation of RIP1/RIP3 necrosome by regulating TAK1 phosphorylation to block necroptosis induced by MI/R.
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Affiliation(s)
- Yao Li
- Clinical Medical College of Air Force, Anhui Medical University, Hefei, China
| | - Hao Hao
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Fourth Military Medical University, Xi’an, China
| | - Haozhen Yu
- School of Basic Medical Sciences, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Lu Yu
- Department of Pathology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
- Lu Yu,
| | - Heng Ma
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Fourth Military Medical University, Xi’an, China
- Heng Ma,
| | - Haitao Zhang
- Clinical Medical College of Air Force, Anhui Medical University, Hefei, China
- Department of Cardiology, PLA Air Force Medical Center, Beijing, China
- *Correspondence: Haitao Zhang,
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21
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Li X, Liu L, Jiang W, Liu M, Wang Y, Ma H, Mu N, Wang H. SIRT6 Protects Against Myocardial Ischemia-Reperfusion Injury by Attenuating Aging-Related CHMP2B Accumulation. J Cardiovasc Transl Res 2022; 15:740-753. [PMID: 35235147 DOI: 10.1007/s12265-021-10184-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/03/2021] [Indexed: 12/15/2022]
Abstract
Impaired autophagic flux induces aging-related ischemia vulnerability, which is the hallmark pathology in cardiac aging. Our previous work has confirmed that the accumulation of charged multivesicular body protein 2B (CHMP2B), a subunit of the ESCRT-III complex, in the heart can impair autophagy flux. However, whether CHMP2B accumulation contributes to aging-related intolerance to ischemia/reperfusion (I/R) injury and the regulatory mechanism for CHMP2B in aged heart remain elusive. The cardiac CHMP2B level was significantly higher in aged human myocardium than that in young myocardium. Increased CHMP2B were shown to inhibit autophagic flux leading to the deterioration of MI/R injury in aged mice hearts. Interestingly, a negative correlation was observed between SIRT6 and CHMP2B expression in human heart samples. Specific activation of SIRT6 suppressed CHMP2B accumulation and ameliorated autophagy flux in aged hearts. Using myocardial-specific SIRT6 heterozygous knockout mice and recovery experiments confirmed that SIRT6 regulated myocardial CHMP2B levels. Finally, activation of SIRT6 decreased acetylation of FoxO1 to promote its transcriptional function on Atrogin-1, a muscle-specific ubiquitin ligase, which subsequently enhanced the degradation of CHMP2B by Atrogin-1. This is a novel mechanism for SIRT6 against aging-related myocardial ischemia vulnerability, particularly by preventing excessive accumulation of autophagy key factors.
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Affiliation(s)
- Xiaokang Li
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, No. 1 Xinsi Rd, Xi'an, China
| | - Lin Liu
- Department of Dermatology, Tangdu Hospital, Fourth Military Medical University, No. 1 Xinsi Rd, Xi'an, 710032, China
| | - Wenhua Jiang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Manling Liu
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an, China
| | - Yishi Wang
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an, China
| | - Heng Ma
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an, China.
| | - Nan Mu
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an, China.
| | - Haiyan Wang
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, No. 1 Xinsi Rd, Xi'an, China.
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22
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Chen L, Yin Z, Qin X, Zhu X, Chen X, Ding G, Sun D, Wu NN, Fei J, Bi Y, Zhang J, Bucala R, Ren J, Zheng Q. CD74 ablation rescues type 2 diabetes mellitus-induced cardiac remodeling and contractile dysfunction through pyroptosis-evoked regulation of ferroptosis. Pharmacol Res 2022; 176:106086. [PMID: 35033649 DOI: 10.1016/j.phrs.2022.106086] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/16/2021] [Accepted: 01/11/2022] [Indexed: 12/17/2022]
Abstract
Type 2 diabetes mellitus (T2D) contributes to sustained inflammation and myopathic changes in the heart although the precise interplay between the two remains largely unknown. This study evaluated the impact of deficiency in CD74, the cognate receptor for the regulatory cytokine macrophage migration inhibitory factor (MIF), in T2D-induced cardiac remodeling and functional responses, and cell death domains involved. WT and CD74-/- mice were fed a high fat diet (60% calorie from fat) for 8 weeks prior to injection of streptozotocin (STZ, 35 mg/kg, i.p., 3 consecutive days) and were maintained for another 8 weeks. KEGG analysis for differentially expressed genes (DEGs) reported gene ontology term related to ferroptosis in T2D mouse hearts. T2D patients displayed elevated plasma MIF levels. Murine T2D exerted overt global metabolic derangements, cardiac remodeling, contractile dysfunction, apoptosis, pyroptosis, ferroptosis and mitochondrial dysfunction, ablation of CD74 attenuated T2D-induced cardiac remodeling, contractile dysfunction, various forms of cell death and mitochondrial defects without affecting global metabolic defects. CD74 ablation rescued T2D-evoked NLRP3-Caspase1 activation and oxidative stress but not dampened autophagy. In vitro evidence depicted that high glucose/high fat (HGHF) compromised cardiomyocyte function and promoted lipid peroxidation, the effects were ablated by inhibitors of NLRP3, pyroptosis, and ferroptosis but not by the mitochondrial targeted antioxidant mitoQ. Recombinant MIF mimicked HGHF-induced lipid peroxidation, GSH depletion and ferroptosis, the effects of which were reversed by inhibitors of MIF, NLRP3 and pyroptosis. Taken together, these data suggest that CD74 ablation protects against T2D-induced cardiac remodeling and contractile dysfunction through NLRP3/pyroptosis-mediated regulation of ferroptosis.
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MESH Headings
- Adult
- Animals
- Antigens, Differentiation, B-Lymphocyte/genetics
- Cell Line
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Experimental/physiopathology
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Diabetes Mellitus, Type 2/physiopathology
- Female
- Ferroptosis
- Gene Expression
- Histocompatibility Antigens Class II/genetics
- Humans
- Macrophage Migration-Inhibitory Factors/blood
- Male
- Mice, Knockout
- Middle Aged
- Myocardial Contraction
- Myocardium/metabolism
- NLR Family, Pyrin Domain-Containing 3 Protein/antagonists & inhibitors
- Oxidative Stress
- Oxygen Consumption
- Pyroptosis
- Rats
- Ventricular Remodeling
- Mice
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Affiliation(s)
- Lin Chen
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Zhiqiang Yin
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Xing Qin
- Department of Cardiology, Xijing Hospital, The Air Force Military Medical University, Xi'an 710032 China
| | - Xiaoying Zhu
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Xu Chen
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Gangbing Ding
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Dong Sun
- Department of Cardiology, Xijing Hospital, The Air Force Military Medical University, Xi'an 710032 China
| | - Ne N Wu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Juanjuan Fei
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yaguang Bi
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jingjing Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Richard Bucala
- Department of Medicine, Yale School of Medicine, New Haven, CT 06520 USA
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle 98195, WA, USA.
| | - Qijun Zheng
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China.
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23
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Ajoolabady A, Bi Y, McClements DJ, Lip GYH, Richardson DR, Reiter RJ, Klionsky DJ, Ren J. Melatonin-based therapeutics for atherosclerotic lesions and beyond: Focusing on macrophage mitophagy. Pharmacol Res 2022; 176:106072. [PMID: 35007709 DOI: 10.1016/j.phrs.2022.106072] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 12/11/2022]
Abstract
Atherosclerosis refers to a unique form of chronic proinflammatory anomaly of the vasculature, presented as rupture-prone or occlusive lesions in arteries. In advanced stages, atherosclerosis leads to the onset and development of multiple cardiovascular diseases with lethal consequences. Inflammatory cytokines in atherosclerotic lesions contribute to the exacerbation of atherosclerosis. Pharmacotherapies targeting dyslipidemia, hypercholesterolemia, and neutralizing inflammatory cytokines (TNF-α, IL-1β, IL-6, IL-17, and IL-12/23) have displayed proven promises although contradictory results. Moreover, adjuvants such as melatonin, a pluripotent agent with proven anti-inflammatory, anti-oxidative and neuroprotective properties, also display potentials in alleviating cytokine secretion in macrophages through mitophagy activation. Here, we share our perspectives on this concept and present melatonin-based therapeutics as a means to modulate mitophagy in macrophages and, thereby, ameliorate atherosclerosis.
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Affiliation(s)
- Amir Ajoolabady
- University of Wyoming College of Health Sciences, Laramie, WY 82071, USA; Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Yaguang Bi
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - David J McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Gregory Y H Lip
- University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Des R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales 2006, Australia; Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland 4111, Australia
| | - Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA.
| | - Daniel J Klionsky
- Life Sciences Institute and Departments of Molecular, Cellular and Developmental Biology and Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Jun Ren
- University of Wyoming College of Health Sciences, Laramie, WY 82071, USA; Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195 USA.
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24
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Abudureyimu M, Luo X, Wang X, Sowers JR, Wang W, Ge J, Ren J, Zhang Y. OUP accepted manuscript. J Mol Cell Biol 2022; 14:6577125. [PMID: 35511596 PMCID: PMC9465638 DOI: 10.1093/jmcb/mjac028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/15/2022] [Accepted: 04/29/2022] [Indexed: 11/30/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM or T2D) is a devastating metabolic abnormality featured by insulin resistance, hyperglycemia, and hyperlipidemia. T2D provokes unique metabolic changes and compromises cardiovascular geometry and function. Meanwhile, T2D increases the overall risk for heart failure (HF) and acts independent of classical risk factors including coronary artery disease, hypertension, and valvular heart diseases. The incidence of HF is extremely high in patients with T2D and is manifested as HF with preserved, reduced, and midrange ejection fraction (HFpEF, HFrEF, and HFmrEF, respectively), all of which significantly worsen the prognosis for T2D. HFpEF is seen in approximately half of the HF cases and is defined as a heterogenous syndrome with discrete phenotypes, particularly in close association with metabolic syndrome. Nonetheless, management of HFpEF in T2D remains unclear, largely due to the poorly defined pathophysiology behind HFpEF. Here, in this review, we will summarize findings from multiple preclinical and clinical studies as well as recent clinical trials, mainly focusing on the pathophysiology, potential mechanisms, and therapies of HFpEF in T2D.
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Affiliation(s)
| | | | - Xiang Wang
- Cardiovascular Department, Shanghai Xuhui Central Hospital, Fudan University, Shanghai 200031, China
| | - James R Sowers
- Diabetes and Cardiovascular Research Center, University of Missouri Columbia, Columbia, MO 65212, USA
| | - Wenshuo Wang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Junbo Ge
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jun Ren
- Correspondence to: Jun Ren, E-mail:
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25
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Zhang X, Feng J, Li X, Wu D, Wang Q, Li S, Shi C. Mitophagy in Diabetic Kidney Disease. Front Cell Dev Biol 2021; 9:778011. [PMID: 34957109 PMCID: PMC8703169 DOI: 10.3389/fcell.2021.778011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/10/2021] [Indexed: 12/17/2022] Open
Abstract
Diabetic kidney disease (DKD) is the most common cause of end-stage kidney disease worldwide and is the main microvascular complication of diabetes. The increasing prevalence of diabetes has increased the need for effective treatment of DKD and identification of new therapeutic targets for better clinical management. Mitophagy is a highly conserved process that selectively removes damaged or unnecessary mitochondria via the autophagic machinery. Given the important role of mitophagy in the increased risk of DKD, especially with the recent surge in COVID-19-associated diabetic complications, in this review, we provide compelling evidence for maintaining homeostasis in the glomeruli and tubules and its underlying mechanisms, and offer new insights into potential therapeutic approaches for treatment of DKD.
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Affiliation(s)
| | | | | | | | | | - Shuyu Li
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Changhua Shi
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, Beijing, China
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26
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Wu L, Zhang Y, Ren J. Epigenetic modification in alcohol use disorder and alcoholic cardiomyopathy: From pathophysiology to therapeutic opportunities. Metabolism 2021; 125:154909. [PMID: 34627873 DOI: 10.1016/j.metabol.2021.154909] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 02/07/2023]
Abstract
Alcohol consumption prompts detrimental psychological, pathophysiological and health issues, representing one of the major causes of death worldwide. Alcohol use disorder (AUD), which is characterized by compulsive alcohol intake and loss of control over alcohol usage, arises from a complex interplay between genetic and environmental factors. More importantly, long-term abuse of alcohol is often tied with unfavorable cardiac remodeling and contractile alterations, a cadre of cardiac responses collectively known as alcoholic cardiomyopathy (ACM). Recent evidence has denoted a pivotal role for ethanol-triggered epigenetic modifications, the interface between genome and environmental cues, in the organismal and cellular responses to ethanol exposure. To-date, three major epigenetic mechanisms (DNA methylation, histone modifications, and RNA-based mechanisms) have been identified for the onset and development of AUD and ACM. Importantly, these epigenetic changes induced by alcohol may be detectable in the blood, thus offering diagnostic, therapeutic, and prognostic promises of epigenetic markers for AUD and alcoholic complications. In addition, several epigenetic drugs have shown efficacies in the management of alcohol abuse, loss of control for alcohol usage, relapse, drinking-related anxiety and behavior in withdrawal. In this context, medications targeting epigenetic modifications may hold promises for pharmaceutical management of AUD and ACM.
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Affiliation(s)
- Lin Wu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Fudan University Zhongshan Hospital, Shanghai 200032, China
| | - Yingmei Zhang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Fudan University Zhongshan Hospital, Shanghai 200032, China
| | - Jun Ren
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Fudan University Zhongshan Hospital, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA.
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27
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Du Y, Demillard LJ, Ren J. Catecholamine-induced cardiotoxicity: A critical element in the pathophysiology of stroke-induced heart injury. Life Sci 2021; 287:120106. [PMID: 34756930 DOI: 10.1016/j.lfs.2021.120106] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/24/2021] [Accepted: 10/26/2021] [Indexed: 01/20/2023]
Abstract
Cerebrovascular diseases such as ischemic stroke, brain hemorrhage, and subarachnoid hemorrhage provoke cardiac complications such as heart failure, neurogenic stress-related cardiomyopathy and Takotsubo cardiomyopathy. With regards to the pathophysiology of stroke-induced heart injury, several mechanisms have been postulated to contribute to this complex interaction between brain and heart, including damage from gut dysbiosis, immune and systematic inflammatory responses, microvesicle- and microRNA-mediated vascular injury and damage from a surge of catecholamines. All these cerebrovascular diseases may trigger pronounced catecholamine surges through diverse ways, including stimulation of hypothalamic-pituitary adrenal axis, dysregulation of autonomic system, and secretion of adrenocorticotropic hormone. Primary catecholamines involved in this pathophysiological response include norepinephrine (NE) and epinephrine. Both are important neurotransmitters that connect the nervous system with the heart, leading to cardiac damage via myocardial ischemia, calcium (Ca2+) overload, oxidative stress, and mitochondrial dysfunction. In this review, we will aim to summarize the molecular mechanisms behind catecholamine-induced cardiotoxicity including Ca2+ overload, oxidative stress, apoptosis, cardiac hypertrophy, interstitial fibrosis, and inflammation. In addition, we will focus on how synchronization among these pathways evokes cardiotoxicity.
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Affiliation(s)
- Yuxin Du
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Laurie J Demillard
- School of Pharmacy, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA.
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