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Ott C. Mapping the interplay of immunoproteasome and autophagy in different heart failure phenotypes. Free Radic Biol Med 2024; 218:149-165. [PMID: 38570171 DOI: 10.1016/j.freeradbiomed.2024.03.026] [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: 02/06/2024] [Revised: 03/25/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Proper protein degradation is required for cellular protein homeostasis and organ function. Particularly, in post-mitotic cells, such as cardiomyocytes, unbalanced proteolysis due to inflammatory stimuli and oxidative stress contributes to organ dysfunction. To ensure appropriate protein turnover, eukaryotic cells exert two main degradation systems, the ubiquitin-proteasome-system and the autophagy-lysosome-pathway. It has been shown that proteasome activity affects the development of cardiac dysfunction differently, depending on the type of heart failure. Studies analyzing the inducible subtype of the proteasome, the immunoproteasome (i20S), demonstrated that the i20S plays a double role in diseased hearts. While i20S subunits are increased in cardiac hypertrophy, atrial fibrillation and partly in myocarditis, the opposite applies to diabetic cardiomyopathy and ischemia/reperfusion injury. In addition, the i20S appears to play a role in autophagy modulation depending on heart failure phenotype. This review summarizes the current literature on the i20S in different heart failure phenotypes, emphasizing the two faces of i20S in injured hearts. A selection of established i20S inhibitors is introduced and signaling pathways linking the i20S to autophagy are highlighted. Mapping the interplay of the i20S and autophagy in different types of heart failure offers potential approaches for developing treatment strategies against heart failure.
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Affiliation(s)
- Christiane Ott
- German Institute of Human Nutrition Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany.
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Liu S, Bi Y, Han T, Li YE, Wang Q, Wu NN, Xu C, Ge J, Hu R, Zhang Y. The E3 ubiquitin ligase MARCH2 protects against myocardial ischemia-reperfusion injury through inhibiting pyroptosis via negative regulation of PGAM5/MAVS/NLRP3 axis. Cell Discov 2024; 10:24. [PMID: 38409220 PMCID: PMC10897310 DOI: 10.1038/s41421-023-00622-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 09/12/2023] [Indexed: 02/28/2024] Open
Abstract
Inflammasome activation and pyroptotic cell death are known to contribute to the pathogenesis of cardiovascular diseases, such as myocardial ischemia-reperfusion (I/R) injury, although the underlying regulatory mechanisms remain poorly understood. Here we report that expression levels of the E3 ubiquitin ligase membrane-associated RING finger protein 2 (MARCH2) were elevated in ischemic human hearts or mouse hearts upon I/R injury. Genetic ablation of MARCH2 aggravated myocardial infarction and cardiac dysfunction upon myocardial I/R injury. Single-cell RNA-seq analysis suggested that loss of MARCH2 prompted activation of NLRP3 inflammasome in cardiomyocytes. Mechanistically, phosphoglycerate mutase 5 (PGAM5) was found to act as a novel regulator of MAVS-NLRP3 signaling by forming liquid-liquid phase separation condensates with MAVS and fostering the recruitment of NLRP3. MARCH2 directly interacts with PGAM5 to promote its K48-linked polyubiquitination and proteasomal degradation, resulting in reduced PGAM5-MAVS co-condensation, and consequently inhibition of NLRP3 inflammasome activation and cardiomyocyte pyroptosis. AAV-based re-introduction of MARCH2 significantly ameliorated I/R-induced mouse heart dysfunction. Altogether, our findings reveal a novel mechanism where MARCH2-mediated ubiquitination negatively regulates the PGAM5/MAVS/NLRP3 axis to protect against cardiomyocyte pyroptosis and myocardial I/R injury.
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Affiliation(s)
- Shuolin Liu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Key Laboratory of Viral Heart Diseases, National Health Commission. Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Yaguang Bi
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Key Laboratory of Viral Heart Diseases, National Health Commission. Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Tianting Han
- College of Basic Medicine, Shanghai Medical College, Fudan University, Shanghai, China
- State Key Laboratory of Molecular Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - Yiran E Li
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Key Laboratory of Viral Heart Diseases, National Health Commission. Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Qihang Wang
- College of Basic Medicine, Shanghai Medical College, Fudan University, Shanghai, China
- State Key Laboratory of Molecular Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - Ne Natalie Wu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Key Laboratory of Viral Heart Diseases, National Health Commission. Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Chenguo Xu
- College of Basic Medicine, Shanghai Medical College, Fudan University, Shanghai, China
| | - Junbo Ge
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Key Laboratory of Viral Heart Diseases, National Health Commission. Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China.
| | - Ronggui Hu
- College of Basic Medicine, Shanghai Medical College, Fudan University, Shanghai, China.
- State Key Laboratory of Molecular Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China.
- University of Chinese Academy of Sciences, Beijing, China.
- School of Life Science, Hangzhou Institute for Advance Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China.
| | - Yingmei Zhang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Key Laboratory of Viral Heart Diseases, National Health Commission. Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China.
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3
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Badawi S, Mohamed FE, Varghese DS, Ali BR. Genetic disruption of mammalian endoplasmic reticulum-associated protein degradation: Human phenotypes and animal and cellular disease models. Traffic 2023. [PMID: 37188482 DOI: 10.1111/tra.12902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/28/2023] [Accepted: 05/02/2023] [Indexed: 05/17/2023]
Abstract
Endoplasmic reticulum-associated protein degradation (ERAD) is a stringent quality control mechanism through which misfolded, unassembled and some native proteins are targeted for degradation to maintain appropriate cellular and organelle homeostasis. Several in vitro and in vivo ERAD-related studies have provided mechanistic insights into ERAD pathway activation and its consequent events; however, a majority of these have investigated the effect of ERAD substrates and their consequent diseases affecting the degradation process. In this review, we present all reported human single-gene disorders caused by genetic variation in genes that encode ERAD components rather than their substrates. Additionally, after extensive literature survey, we present various genetically manipulated higher cellular and mammalian animal models that lack specific components involved in various stages of the ERAD pathway.
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Affiliation(s)
- Sally Badawi
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Feda E Mohamed
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Divya Saro Varghese
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Bassam R Ali
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain, United Arab Emirates
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Yang Y, Shao M, Yao J, Yang S, Cheng W, Ma L, Li W, Cao J, Zhang Y, Hu Y, Li C, Wang Y, Wang W. Neocryptotanshinone protects against myocardial ischemia-reperfusion injury by promoting autolysosome degradation of protein aggregates via the ERK1/2-Nrf2-LAMP2 pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 110:154625. [PMID: 36586206 DOI: 10.1016/j.phymed.2022.154625] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 12/04/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Aggrephagy is a critical compensatory mechanism for the elimination of misfolded proteins resulting from stress and depends on the autolysosome degradation of protein aggregates. However, there have been few mechanism research related to aggrephagy in myocardial ischemia/reperfusion (I/R) injury. Neocryptotanshinone (NCTS) is a fat-soluble active compound extracted from Salvia miltiorrhiza, and may be cardioprotective against I/R. However, the efficacy and specific mechanism of NCTS on I/R have not been studied. PURPOSE The current study aimed to investigate the molecular mechanism of NCTS involved in the therapeutic effect on I/R, with a special emphasis on the up-regulation of the ERK1/2-Nrf2-LAMP2 pathway to increase autolysosomal degradation during aggrephagy. METHODS A rat model of myocardial I/R injury was constructed by left anterior descending (LAD) ligation-reperfusion. To verify cardiac protection, autolysosome clearance of protein aggregates, and their intracellular biological mechanism, an oxygen-glucose deprivation/recovery (OGD/R)-induced H9c2 cardiomyocyte model was created. RESULTS NCTS was found to have a significant cardioprotective effect in I/R rats as evidenced by remarkably improved pathological anatomy, decreased myocardial damage indicators, and substantially enhanced cardiac performance. Mechanistically, NCTS might boost the levels of LAMP2 mRNA and protein, total and Ser40 phosphorylated Nrf2, and Thr202/Tyr204p-ERK1/2 protein. Simultaneously, the cytoplasmic Nrf2 level was reduced after NCTS administration, which was contrary to the total Nrf2 content. However, these beneficial changes were reversed by the co-administration with ERK1/2 inhibitor, PD98059. NCTS therapy up-regulated Rab7 protein content, Cathepsin B activity, and lysosomal acidity, while down-regulating autophagosome numbers, Ubiquitin (Ub), and autophagosome marker protein accumulations through the above signaling pathway. This might indicate that NCTS enhanced lysosomal fusion and hydrolytic capacity. It was also found that NCTS intervention limited oxidative stress and cellular apoptosis both in vivo and in vitro. CONCLUSIONS We reported for the first time that NCTS promoted the autolysosome removal of protein aggregation both in vivo and in vitro, to exert the therapeutic advantages of myocardial I/R injury. This was reliant on the up-regulation of the ERK1/2-Nrf2-LAMP2 signaling pathway.
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Affiliation(s)
- Ye Yang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China; Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China
| | - Mingyan Shao
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Junkai Yao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China; Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China
| | - Shuangjie Yang
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Wenkun Cheng
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Lin Ma
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Weili Li
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jing Cao
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yawen Zhang
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yueyao Hu
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Chun Li
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Yong Wang
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Wei Wang
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100700, China; Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
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Huber CC, Wang X, Wang H. Impact of Cardiovascular Diseases on Ischemic Stroke Outcomes. J Integr Neurosci 2022; 21:138. [PMID: 36137958 PMCID: PMC9721101 DOI: 10.31083/j.jin2105138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/21/2022] [Accepted: 05/27/2022] [Indexed: 11/06/2022] Open
Abstract
Stroke induces complex pathological cascades in the affected brain area, leading to brain injury and functional disability. To fight against cerebral ischemia/reperfusion-induced neuronal death, numerous neuroprotective strategies and reagents have been studied. However, translation of these neuroprotective drugs to clinical trials has been unsuccessful. To date, the tissue plasminogen activator is still the only FDA-approved drug for treating ischemic stroke. Thus, it is obligatory to identify and validate additional therapeutic strategies for stroke. A stroke rarely occurs without any other pathophysiological condition; but instead, it often has multi-morbidity conditions, one of which is cardiac disease. Indeed, up to half of the stroke cases are associated with cardiac and large artery diseases. As an adequate blood supply is essential for the brain to maintain its normal function, any pathophysiological alterations in the heart are frequently implicated in stroke outcomes. In this review, we summarize some of the cardiovascular factors that influence stroke outcomes and propose that considering these factors in designing stroke therapies should enhance success in clinical trials. We also highlight the recent advances regarding the potential effect of protein aggregates in a peripheral organ, such as in the heart, on ischemic stroke-caused brain injury and functional recovery. Including these and other comorbidity factors in the future therapeutic strategy designs should facilitate translational success toward developing effective combinational therapies for the disorder.
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Affiliation(s)
- Christa C. Huber
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD 57069, USA
| | - Xuejun Wang
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD 57069, USA
| | - Hongmin Wang
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD 57069, USA
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Song S, Wang Y, Wang HY, Guo LL. Role of sevoflurane in myocardial ischemia-reperfusion injury via the ubiquitin-specific protease 22/lysine-specific demethylase 3A axis. Bioengineered 2022; 13:13366-13383. [PMID: 36700466 PMCID: PMC9275884 DOI: 10.1080/21655979.2022.2062535] [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] [Indexed: 01/29/2023] Open
Abstract
Myocardial ischemia-reperfusion injury (MIRI) represents a coronary artery disease, accompanied by high morbidity and mortality. Sevoflurane post-conditioning (SPC) is importantly reported in myocardial disease. Accordingly, the current study sought to evaluate the role of Sevo in MI/RI. Firstly, MI/RI models were established and subjected to SPC. Subsequently, pathological injury in the myocardium, myocardial infarction areas, H9c2 cell viability, apoptosis, and levels of creatine kinase-MB (CK-MB), cardiac troponin I (cTnI), and lactate dehydrogenase (LDH) were all measured. Ubiquitin-specific peptidase (22USP22), lysine-specific demethylase 3A (KDM3A), and Yes1 associated transcriptional regulator (YAP1) were down-regulated in H9c2 cells using cell transfection to verify their roles. The interaction between USP22 and KDM3A and between KDM3A and YAP1 was further validated. USP 22, KDM3A, and YAP1 were found to be down-regulated in MI/RI and SPC protected MI/RI rats, as evidenced by up-regulated expressions of USP22, KDM3A, and YAP1, reduced pathological injury in the myocardium, myocardial infarction areas, apoptosis, and levels of CK-MB, cTnI, and LDH, and enhanced H9c2 cell viability; while the protective effects of Sevo were counteracted by silencing of USP22, KDM3A, and SPC upregulated USP22, which stabilized KDM3A protein levels via deubiquitination, and KDM3A inhibited histone 3 lysine 9 di-methylation (H3K9me2) levels in the YAP1 promoter to encourage YAP1 transcription, to reduce MI/RI.
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Affiliation(s)
- Shan Song
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Yang Wang
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Hai-Yan Wang
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China,Hai-Yan Wang Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, No. 20 Yuhuangding East Road, Zhifu District, Yantai City264000, Shandong Province, China
| | - Long-Long Guo
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China,CONTACT Long-Long Guo
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7
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Awad K, Sayed A, Banach M. Coenzyme Q10 Reduces Infarct Size in Animal Models of Myocardial Ischemia-Reperfusion Injury: A Meta-Analysis and Summary of Underlying Mechanisms. Front Cardiovasc Med 2022; 9:857364. [PMID: 35498032 PMCID: PMC9053645 DOI: 10.3389/fcvm.2022.857364] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/15/2022] [Indexed: 01/14/2023] Open
Abstract
Objective Effective interventions that might limit myocardial ischemia-reperfusion (I/R) injury are still lacking. Coenzyme Q10 (CoQ10) may exert cardioprotective actions that reduce myocardial I/R injury. We conducted this meta-analysis to assess the potential cardioprotective effect of CoQ10 in animal models of myocardial I/R injury. Methods We searched PubMed and Embase databases from inception to February 2022 to identify animal studies that compared the effect of CoQ10 with vehicle treatment or no treatment on myocardial infarct size in models of myocardial I/R injury. Means and standard deviations of the infarct size measurements were pooled as the weighted mean difference with 95% confidence interval (CI) using the random-effects model. Subgroup analyses were also conducted according to animals' species, models' type, and reperfusion time. Results Six animal studies (4 in vivo and 2 ex vivo) with 116 animals were included. Pooled analysis suggested that CoQ10 significantly reduced myocardial infarct size by −11.36% (95% CI: −16.82, −5.90, p < 0.0001, I2 = 94%) compared with the control group. The significance of the pooled effect estimate was maintained in rats, Hartley guinea pigs, and Yorkshire pigs. However, it became insignificant in the subgroup of rabbits −5.29% (95% CI: −27.83, 17.26; I2 = 87%). Furthermore, CoQ10 significantly reduced the myocardial infarct size regardless of model type (either in vivo or ex vivo) and reperfusion time (either ≤ 4 h or >4 h). Conclusion Coenzyme Q10 significantly decreased myocardial infarct size by 11.36% compared with the control group in animal models of myocardial I/R injury. This beneficial action was retained regardless of model type and reperfusion time.
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Affiliation(s)
- Kamal Awad
- Faculty of Medicine, Zagazig University, Zagazig, Egypt
- Zagazig University Hospitals, Zagazig, Egypt
- *Correspondence: Kamal Awad
| | - Ahmed Sayed
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Maciej Banach
- Department of Preventive Cardiology and Lipidology, Chair of Nephrology and Hypertension, Medical University of Lodz (MUL), Lodz, Poland
- Department of Cardiology and Adult Congenital Heart Diseases, Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland
- Cardiovascular Research Centre, University of Zielona Gora, Zielona Gora, Poland
- Maciej Banach
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Hu C, Zhang X, Hu M, Teng T, Yuan Y, Song P, Kong C, Xu S, Ma Z, Tang Q. Fibronectin type III domain-containing 5 improves aging-related cardiac dysfunction in mice. Aging Cell 2022; 21:e13556. [PMID: 35166002 PMCID: PMC8920441 DOI: 10.1111/acel.13556] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 12/17/2021] [Accepted: 01/05/2022] [Indexed: 12/14/2022] Open
Abstract
Aging is an important risk factor for cardiovascular diseases, and aging‐related cardiac dysfunction serves as a major determinant of morbidity and mortality in elderly populations. Our previous study has identified fibronectin type III domain‐containing 5 (FNDC5) and its cleaved form, irisin, as the cardioprotectant against doxorubicin‐induced cardiomyopathy. Herein, aging or matched young mice were overexpressed with FNDC5 by adeno‐associated virus serotype 9 (AAV9) vectors, or subcutaneously infused with irisin to uncover the role of FNDC5 in aging‐related cardiac dysfunction. To verify the involvement of nucleotide‐binding oligomerization domain‐like receptor with a pyrin domain 3 (NLRP3) and AMP‐activated protein kinase α (AMPKα), Nlrp3 or Ampkα2 global knockout mice were used. Besides, young mice were injected with AAV9‐FNDC5 and maintained for 12 months to determine the preventive effect of FNDC5. Moreover, neonatal rat cardiomyocytes were stimulated with tumor necrosis factor‐α (TNF‐α) to examine the role of FNDC5 in vitro. We found that FNDC5 was downregulated in aging hearts. Cardiac‐specific overexpression of FNDC5 or irisin infusion significantly suppressed NLRP3 inflammasome and cardiac inflammation, thereby attenuating aging‐related cardiac remodeling and dysfunction. In addition, irisin treatment also inhibited cellular senescence in TNF‐α‐stimulated cardiomyocytes in vitro. Mechanistically, FNDC5 activated AMPKα through blocking the lysosomal degradation of glucagon‐like peptide‐1 receptor. More importantly, FNDC5 gene transfer in early life could delay the onset of cardiac dysfunction during aging process. We prove that FNDC5 improves aging‐related cardiac dysfunction by activating AMPKα, and it might be a promising therapeutic target to support cardiovascular health in elderly populations.
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Affiliation(s)
- Can Hu
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Xin Zhang
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Min Hu
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Teng Teng
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Yu‐Pei Yuan
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Peng Song
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Chun‐Yan Kong
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Si‐Chi Xu
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Zhen‐Guo Ma
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
| | - Qi‐Zhu Tang
- Department of Cardiology Renmin Hospital of Wuhan University Wuhan China
- Hubei Key Laboratory of Metabolic and Chronic Diseases Wuhan China
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9
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Geng B, Wang X, Park KH, Lee KE, Kim J, Chen P, Zhou X, Tan T, Yang C, Zou X, Janssen PM, Cao L, Ye L, Wang X, Cai C, Zhu H. UCHL1 protects against ischemic heart injury via activating HIF-1α signal pathway. Redox Biol 2022; 52:102295. [PMID: 35339825 PMCID: PMC8961225 DOI: 10.1016/j.redox.2022.102295] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/07/2022] [Accepted: 03/16/2022] [Indexed: 01/01/2023] Open
Abstract
Ubiquitin carboxyl-terminal esterase L1 (UCHL1) has been thought to be a neuron specific protein and shown to play critical roles in Parkinson's Disease and stroke via de-ubiquiting and stabilizing key pathological proteins, such as α-synuclein. In the present study, we found that UCHL1 was significantly increased in both mouse and human cardiomyocytes following myocardial infarction (MI). When LDN-57444, a pharmacological inhibitor of UCHL1, was used to treat mice subjected to MI surgery, we found that administration of LDN-57444 compromised cardiac function when compared with vehicle treated hearts, suggesting a potential protective role of UCHL1 in response to MI. When UCHL1 was knockout by CRISPR/Cas 9 gene editing technique in human induced pluripotent stem cells (hiPSCs), we found that cardiomyocytes derived from UCHL1−/− hiPSCs were more susceptible to hypoxia/re-oxygenation induced injury as compared to wild type cardiomyocytes. To study the potential targets of UCHL1, a BioID based proximity labeling approach followed by mass spectrum analysis was performed. The result suggested that UCHL1 could bind to and stabilize HIF-1α following MI. Indeed, expression of HIF-1α was lower in UCHL1−/− cells as determined by Western blotting and HIF-1α target genes were also suppressed in UCHL1−/− cells as quantified by real time RT-PCR. Recombinant UCHL1 (rUCHL1) protein was purified by E. Coli fermentation and intraperitoneally (I.P.) delivered to mice. We found that administration of rUCHL1 could significantly preserve cardiac function following MI as compared to control group. Finally, adeno associated virus mediated cardiac specific UCHL1 delivery (AAV9-cTNT-m-UCHL1) was performed in neonatal mice. UCHL1 overexpressing hearts were more resistant to MI injury as compare to the hearts infected with control virus. In summary, our data revealed a novel protective role of UCHL1 on MI via stabilizing HIF-1α and promoting HIF-1α signaling.
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Affiliation(s)
- Bingchuan Geng
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Xiaoliang Wang
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Ki Ho Park
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Kyung Eun Lee
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Jongsoo Kim
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Peng Chen
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Xinyu Zhou
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Tao Tan
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Chunlin Yang
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Xunchang Zou
- Department of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Paul M Janssen
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Lei Cao
- Department of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Lei Ye
- Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL, 35233, USA
| | - Xuejun Wang
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD, 57069, USA
| | - Chuanxi Cai
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Hua Zhu
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA.
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10
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Acetylcholine exerts cytoprotection against hypoxia/reoxygenation-induced apoptosis, autophagy and mitochondrial impairment through both muscarinic and nicotinic receptors. Apoptosis 2022; 27:233-245. [DOI: 10.1007/s10495-022-01715-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2022] [Indexed: 11/25/2022]
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11
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Zhang X, Hu C, Yuan XP, Yuan YP, Song P, Kong CY, Teng T, Hu M, Xu SC, Ma ZG, Tang QZ. Osteocrin, a novel myokine, prevents diabetic cardiomyopathy via restoring proteasomal activity. Cell Death Dis 2021; 12:624. [PMID: 34135313 PMCID: PMC8209005 DOI: 10.1038/s41419-021-03922-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023]
Abstract
Proteasomal activity is compromised in diabetic hearts that contributes to proteotoxic stresses and cardiac dysfunction. Osteocrin (OSTN) acts as a novel exercise-responsive myokine and is implicated in various cardiac diseases. Herein, we aim to investigate the role and underlying molecular basis of OSTN in diabetic cardiomyopathy (DCM). Mice received a single intravenous injection of the cardiotrophic adeno-associated virus serotype 9 to overexpress OSTN in the heart and then were exposed to intraperitoneal injections of streptozotocin (STZ, 50 mg/kg) for consecutive 5 days to generate diabetic models. Neonatal rat cardiomyocytes were isolated and stimulated with high glucose to verify the role of OSTN in vitro. OSTN expression was reduced by protein kinase B/forkhead box O1 dephosphorylation in diabetic hearts, while its overexpression significantly attenuated cardiac injury and dysfunction in mice with STZ treatment. Besides, OSTN incubation prevented, whereas OSTN silence aggravated cardiomyocyte apoptosis and injury upon hyperglycemic stimulation in vitro. Mechanistically, OSTN treatment restored protein kinase G (PKG)-dependent proteasomal function, and PKG or proteasome inhibition abrogated the protective effects of OSTN in vivo and in vitro. Furthermore, OSTN replenishment was sufficient to prevent the progression of pre-established DCM and had synergistic cardioprotection with sildenafil. OSTN protects against DCM via restoring PKG-dependent proteasomal activity and it is a promising therapeutic target to treat DCM.
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Affiliation(s)
- Xin Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Can Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Xiao-Pin Yuan
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Yu-Pei Yuan
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Peng Song
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Chun-Yan Kong
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Teng Teng
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Min Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Si-Chi Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China
| | - Zhen-Guo Ma
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China.
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China.
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, 430060, Wuhan, China.
- Hubei Key Laboratory of Metabolic and Chronic Diseases, 430060, Wuhan, China.
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12
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Muley C, Kotschi S, Bartelt A. Role of Ubiquilins for Brown Adipocyte Proteostasis and Thermogenesis. Front Endocrinol (Lausanne) 2021; 12:739021. [PMID: 34650520 PMCID: PMC8505974 DOI: 10.3389/fendo.2021.739021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/14/2021] [Indexed: 11/13/2022] Open
Abstract
The acclimatization of brown adipose tissue (BAT) to sustained cold exposure requires an adaptive increase in proteasomal protein quality control. Ubiquilins represent a recently identified family of shuttle proteins with versatile functions in protein degradation, such as facilitating substrate targeting and proteasomal degradation. However, whether ubiquilins participate in brown adipocyte function has not been investigated so far. Here, we determine the role of ubiquilins for proteostasis and non-shivering thermogenesis in brown adipocytes. We found that Ubqln1, 2 and 4 are highly expressed in BAT and their expression was induced by cold and proteasomal inhibition. Surprisingly, silencing of ubiquilin gene expression (one or multiple in combinations) did not lead to aggravated ER stress or inflammation. Moreover, ubiquitin level and proteasomal activity under basal conditions were not impacted by loss of ubiquilins. Also, non-shivering thermogenesis measured by norepinephrine-induced respiration remained intact after loss of ubiquilins. In conclusion, ubiquilin proteins are highly abundant in BAT and regulated by cold, but they are dispensable for brown adipocyte proteostasis and thermogenesis.
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Affiliation(s)
- Carolin Muley
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University, Munich, Germany
| | - Stefan Kotschi
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University, Munich, Germany
| | - Alexander Bartelt
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University, Munich, Germany
- German Center for Cardiovascular Research, Partner Site Munich Heart Alliance, Technische Universität München, Munich, Germany
- Institute for Diabetes and Cancer (IDC), Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
- Department of Molecular Metabolism & Sabri Ülker Center, Harvard T.H. Chan School of Public Health, Boston, MA, United States
- *Correspondence: Alexander Bartelt,
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13
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Li J, Zou J, Littlejohn R, Liu J, Su H. Neddylation, an Emerging Mechanism Regulating Cardiac Development and Function. Front Physiol 2020; 11:612927. [PMID: 33391028 PMCID: PMC7773599 DOI: 10.3389/fphys.2020.612927] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/20/2020] [Indexed: 12/13/2022] Open
Abstract
Defects in protein quality control have been increasingly recognized as pathogenic factors in the development of heart failure, a persistent devastating disease lacking efficacious therapies. Ubiquitin and ubiquitin-like proteins, a family of post-translational modifying polypeptides, play important roles in controlling protein quality by maintaining the stability and functional diversity of the proteome. NEDD8 (neural precursor cell expressed, developmentally downregulated 8), a small ubiquitin-like protein, was discovered two decades ago but until recently the biological significance of NEDD8 modifications (neddylation) in the heart has not been appreciated. In this review, we summarize the current knowledge of the biology of neddylation, highlighting several mechanisms by which neddylation regulates the function of its downstream targets, and discuss the expanding roles for neddylation in cardiac physiology and disease, with an emphasis on cardiac protein quality control. Finally, we outline challenges linked to the study of neddylation in health and disease.
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Affiliation(s)
- Jie Li
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Jianqiu Zou
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Rodney Littlejohn
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Jinbao Liu
- Protein Modification and Degradation Lab, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Huabo Su
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
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14
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Zhang X, Su Y, Lin H, Yao X. The impacts of ubiquilin 1 (UBQLN1) knockdown on cells viability, proliferation, and apoptosis are mediated by p53 in A549 lung cancer cells. J Thorac Dis 2020; 12:5887-5895. [PMID: 33209421 PMCID: PMC7656338 DOI: 10.21037/jtd-20-1362] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Little is known about the relationship between ubiquilin 1 (UBQLN1) and p53, both of them have been implicated in the development and progression of non-small cell lung cancer (NSCLC). In this study, we aimed to explore the role of loss of UBQLN1 in cell viability and proliferation, and cell apoptosis in human lung adenocarcinoma A549 cells. Methods Cell viability, proliferation, and apoptosis were determined by MTT, BrdU, and TUNEL assays, respectively. Adenoviruses carrying cDNA or siRNA were used to overexpress or silence target protein. Dihydroethidium (DHE) staining was performed to measure the real-time formation of intracellular reactive oxygen species (ROS). The chymotrypsin-like activity of 20S proteasome core was determined by using synthetic fluorogenic peptide substrate. Results UBQLN1 silencing led to a reduction of p53 protein levels and overexpression of p53 reversed the effects of UBQLN1 knockdown (KD) on cell viability, proliferation, and apoptosis. Furthermore, deficiency of UBQLN1 activated autophagy activity but did not affect proteasome activity. Inhibition of autophagy restored p53 protein levels in UBQLN1-KD A549 cells. In addition, UBQLN1 KD markedly inhibited phosphorylation of mammalian target of rapamycin (mTOR) and its downstream ribosomal S6 kinase (S6K). Conclusions Our experiments suggested that the regulation of UBQLN1 on cell viability, proliferation, and apoptosis was mediated by mTOR/autophagy/p53 signaling pathway.
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Affiliation(s)
- Xinghua Zhang
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yunshu Su
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Huiqing Lin
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoli Yao
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, China
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15
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Ranek MJ, Oeing C, Sanchez-Hodge R, Kokkonen-Simon KM, Dillard D, Aslam MI, Rainer PP, Mishra S, Dunkerly-Eyring B, Holewinski RJ, Virus C, Zhang H, Mannion MM, Agrawal V, Hahn V, Lee DI, Sasaki M, Van Eyk JE, Willis MS, Page RC, Schisler JC, Kass DA. CHIP phosphorylation by protein kinase G enhances protein quality control and attenuates cardiac ischemic injury. Nat Commun 2020; 11:5237. [PMID: 33082318 PMCID: PMC7575552 DOI: 10.1038/s41467-020-18980-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 09/23/2020] [Indexed: 12/11/2022] Open
Abstract
Proteotoxicity from insufficient clearance of misfolded/damaged proteins underlies many diseases. Carboxyl terminus of Hsc70-interacting protein (CHIP) is an important regulator of proteostasis in many cells, having E3-ligase and chaperone functions and often directing damaged proteins towards proteasome recycling. While enhancing CHIP functionality has broad therapeutic potential, prior efforts have all relied on genetic upregulation. Here we report that CHIP-mediated protein turnover is markedly post-translationally enhanced by direct protein kinase G (PKG) phosphorylation at S20 (mouse, S19 human). This increases CHIP binding affinity to Hsc70, CHIP protein half-life, and consequent clearance of stress-induced ubiquitinated-insoluble proteins. PKG-mediated CHIP-pS20 or expressing CHIP-S20E (phosphomimetic) reduces ischemic proteo- and cytotoxicity, whereas a phospho-silenced CHIP-S20A amplifies both. In vivo, depressing PKG activity lowers CHIP-S20 phosphorylation and protein, exacerbating proteotoxicity and heart dysfunction after ischemic injury. CHIP-S20E knock-in mice better clear ubiquitinated proteins and are cardio-protected. PKG activation provides post-translational enhancement of protein quality control via CHIP.
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Affiliation(s)
- Mark J Ranek
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Christian Oeing
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Rebekah Sanchez-Hodge
- Division of Cardiology, McAllister Heart Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kristen M Kokkonen-Simon
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Danielle Dillard
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - M Imran Aslam
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Peter P Rainer
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
- Division of Cardiology, Department of Medicine, Medical University of Graz, 8036, Graz, Austria
| | - Sumita Mishra
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Brittany Dunkerly-Eyring
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Ronald J Holewinski
- Cedar Sinai Medical Center, Advanced Clinical Biosystems Research Institute, The Smidt Heart Institute, 8700 Beverly Blvd, AHSP A9229, Los Angeles, CA, 90048, USA
| | - Cornelia Virus
- Division of Cardiology, McAllister Heart Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Huaqun Zhang
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Matthew M Mannion
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Vineet Agrawal
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Virginia Hahn
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Dong I Lee
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Masayuki Sasaki
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
| | - Jennifer E Van Eyk
- Cedar Sinai Medical Center, Advanced Clinical Biosystems Research Institute, The Smidt Heart Institute, 8700 Beverly Blvd, AHSP A9229, Los Angeles, CA, 90048, USA
| | - Monte S Willis
- Division of Cardiology, McAllister Heart Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Richard C Page
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Jonathan C Schisler
- Division of Cardiology, McAllister Heart Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - David A Kass
- Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA.
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16
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Crosstalk between cardiomyocytes and noncardiomyocytes is essential to prevent cardiomyocyte apoptosis induced by proteasome inhibition. Cell Death Dis 2020; 11:783. [PMID: 32951004 PMCID: PMC7502079 DOI: 10.1038/s41419-020-03005-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 02/08/2023]
Abstract
Heart is a multi-cellular organ made up of various cell types interacting with each other. Cardiomyocytes may benefit or suffer from crosstalk with noncardiomyocytes in response to diverse kinds of cardiac stresses. Proteasome dysfunction is a common cardiac stress which causes cardiac proteotoxicity and contributes to cardiac diseases such as heart failure and myocardial infarction. The role of crosstalk between cardiomyocytes and noncardiomyocytes in defense of cardiac proteotoxicity remains unknown. Here, we report a cardiomyocyte-specific survival upon proteasome inhibition in a heterogeneous culture consisting of cardiomyocytes and other three major cardiac cell types. Conversely, cardiomyocyte apoptosis is remarkably induced by proteasome inhibition in a homogeneous culture consisting of a majority of cardiomyocytes, demonstrating an indispensable role of noncardiomyocytes in the prevention of cardiomyocyte apoptosis resulting from proteasome inhibition. We further show that cardiomyocytes express brain natriuretic peptide (BNP) as an extracellular molecule in response to proteasome inhibition. Blockade of BNP receptor on noncardiomyocytes significantly exacerbated the cardiomyocyte apoptosis, indicating a paracrine function of cardiomyocyte-released extracellular BNP in activation of a protective feedback from noncardiomyocytes. Finally, we demonstrate that proteasome inhibition-activated transcriptional up-regulation of BNP in cardiomyocytes was associated with the dissociation of repressor element 1 silencing transcription factor (REST)/ histone deacetylase 1 (HDAC1) repressor complex from BNP gene promoter. Consistently, the induction of BNP could be further augmented by the treatment of HDAC inhibitors. We conclude that the crosstalk between cardiomyocytes and noncardiomyocytes plays a crucial role in the protection of cardiomyocytes from proteotoxicity stress, and identify cardiomyocyte-released BNP as a novel paracrine signaling molecule mediating this crosstalk. These findings provide new insights into the key regulators and cardioprotective mechanism in proteasome dysfunction-related cardiac diseases.
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17
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Fu HR, Li XS, Zhang YH, Feng BB, Pan LH. Visnagin ameliorates myocardial ischemia/reperfusion injury through the promotion of autophagy and the inhibition of apoptosis. Eur J Histochem 2020; 64. [PMID: 32909422 PMCID: PMC7482183 DOI: 10.4081/ejh.2020.3131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/30/2020] [Indexed: 01/31/2023] Open
Abstract
Visnagin is a furanochromone and one of the main compounds of Ammi visnaga L. that had been used to treat nephrolithiasis in Ancient Egypt. Nowadays, visnagin was widely used to treat angina pectoris, urolithiasis and hypertriglyceridemia. The potential mechanisms of visnagin involved in inflammation and cardiovascular disease were also identified. But the protective effect of visnagin on myocardial ischemia/reperfusion injury has not been confirmed. Our aim was, for the first time, to investigate the potential protective effect of visnagin on cardiac function after myocardial ischemia-reperfusion injury in a rat model, and to identify its underlying mechanism involving the inhibition of apoptosis and induction of autophagy. Thirty SD rats were randomly divided into sham group, ischemia/reperfusion group (IR), ischemia/reperfusion with visnagin (IR + visnagin) group. Myocardial ischemia/Reperfusion injury model was established. Hemodynamic measurements and echocardiography were used to analyze cardiac function, TUNEL staining and caspase activity, LC3 dots were detected with immunofluorescence staining, LC3 expression was evaluated by western blot analysis, transmission electron microscopy (TEM) was used to detect autophagosomes. Compared with the sham group and visnagin group, the cardiac dysfunction, LC3II, autophagy flow in the IR+ visnagin group increased significantly (P<0.01), but the activity of caspase-3 and caspase-9 and the apoptotic in the IR + visnagin group decreased significantly (P<0.01). In conclusion, visnagin may play a protective role in ischemia/reperfusion injury by inducing autophagy and reducing apoptosis.
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Affiliation(s)
- Hai-Rong Fu
- Department of Basic Medicine, Three Gorges Medical College, Chongqing.
| | - Xiao-Shan Li
- Department of Basic Medicine, Three Gorges Medical College, Chongqing.
| | - Yong-Hui Zhang
- Department of Basic Medicine, Three Gorges Medical College, Chongqing.
| | - Bin-Bin Feng
- Department of Pharmacy, Three Gorges Medical College, Chongqing.
| | - Lian-Hong Pan
- Center for Natural Anti-tumor Medicine Engineering, Three Gorges Medical College, Chongqing.
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18
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Qiu F, Han Y, Shao X, Paulo P, Li W, Zhu M, Tang N, Guo S, Chen Y, Wu H, Zhao D, Liu Y, Chu W. Knockdown of endogenous RNF4 exacerbates ischaemia-induced cardiomyocyte apoptosis in mice. J Cell Mol Med 2020; 24:9545-9559. [PMID: 32722882 PMCID: PMC7520334 DOI: 10.1111/jcmm.15363] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 01/13/2020] [Accepted: 03/28/2020] [Indexed: 12/15/2022] Open
Abstract
RNF4, a poly‐SUMO‐specific E3 ubiquitin ligase, is associated with protein degradation, DNA damage repair and tumour progression. However, the effect of RNF4 in cardiomyocytes remains to be explored. Here, we identified the alteration of RNF4 from ischaemic hearts and oxidative stress‐induced apoptotic cardiomyocytes. Upon myocardial infarction (MI) or H2O2/ATO treatment, RNF4 increased rapidly and then decreased gradually. PML SUMOylation and PML nuclear body (PML‐NB) formation first enhanced and then degraded upon oxidative stress. Reactive oxygen species (ROS) inhibitor was able to attenuate the elevation of RNF4 expression and PML SUMOylation. PML overexpression and RNF4 knockdown by small interfering RNA (siRNA) enhanced PML SUMOylation, promoted p53 recruitment and activation and exacerbated H2O2/ATO‐induced cardiomyocyte apoptosis which could be partially reversed by knockdown of p53. In vivo, knockdown of endogenous RNF4 via in vivo adeno‐associated virus infection deteriorated post‐MI structure remodelling including more extensive interstitial fibrosis and severely fractured and disordered structure. Furthermore, knockdown of RNF4 worsened ischaemia‐induced cardiac dysfunction of MI models. Our results reveal a novel myocardial apoptosis regulation model that is composed of RNF4, PML and p53. The modulation of these proteins may provide a new approach to tackling cardiac ischaemia.
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Affiliation(s)
- Fang Qiu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Yanna Han
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Xiaoqi Shao
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China.,Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, P. R. China
| | - Petro Paulo
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Wenyue Li
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Mengying Zhu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Nannan Tang
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Shuaili Guo
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Yibing Chen
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Han Wu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Dan Zhao
- Departments of Clinical Pharmacy and Cardiology, the 2nd Affiliated Hospital, Harbin Medical University, Key Laboratories of Education Ministry for Myocardial Ischemia Mechanism and Treatment, Harbin, P.R. China
| | - Yu Liu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
| | - Wenfeng Chu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, P. R. China
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19
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Xiao P, Wang C, Li J, Su H, Yang L, Wu P, Lewno MT, Liu J, Wang X. COP9 Signalosome Suppresses RIPK1-RIPK3-Mediated Cardiomyocyte Necroptosis in Mice. Circ Heart Fail 2020; 13:e006996. [PMID: 32578441 DOI: 10.1161/circheartfailure.120.006996] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Mechanisms governing the induction of heart failure by the impairment of autophagy and the ubiquitin-proteasome system and the molecular pathways to cardiomyocyte necrosis remain incompletely understood. COPS8 is an essential subunit of the COP9 (COnstitutive Photomorphogenesis 9) signalosome, a key regulator of ubiquitination. Mice with cardiomyocyte-restricted knockout of Cops8 (Cops8-cko) show autophagic and ubiquitin-proteasome system malfunction and massive cardiomyocyte necrosis followed by acute heart failure and premature death, providing an excellent animal model to address the mechanistic gaps specified above. This study was conducted to determine the nature and underlying mechanisms of the cardiomyocyte necrosis in Cops8-cko mice. METHODS AND RESULTS Compared with littermate control mice, myocardial protein levels of key factors in the necroptotic pathway (RIPK1 [receptor-interacting protein kinase 1], RIPK3, MLKL [mixed lineage kinase-like], the RIPK1-bound RIPK3), protein carbonyls, full-length Casp8 (caspase 8), and BCL2, as well as histochemical staining of superoxide anions were significantly higher but the cleaved Casp8 and the Casp8 activity were significantly lower in Cops8-cko mice. In vivo cardiomyocyte uptake of Evan's blue dye was used as an indicator of necrosis. Cops8-cko mice treated with a RIPK1 kinase inhibitor (Nec-1 [Necrostatin-1]) showed less Evans blue dye uptake (0.005% versus 0.20%; P<0.0001) and longer median lifespan (32.5 versus 27 days; P<0.01) than those treated with vehicle control. RIPK3 haploinsufficiency showed similar rescuing effects on Cops8-cko but Cyclophilin D deficiency did the opposite. CONCLUSIONS Cardiac Cops8/COP9 signalosome malfunction causes RIPK1-RIPK3 dependent, but mitochondrial permeability transition pore independent, cardiomyocyte necroptosis in mice and the COP9 signalosome plays an indispensable role in suppressing cardiomyocyte necroptosis.
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Affiliation(s)
- Peng Xiao
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD (P.X., C.W., J. Li, H.S., L.Y., P.W., M.T.L., X.W.)
| | - Changhua Wang
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD (P.X., C.W., J. Li, H.S., L.Y., P.W., M.T.L., X.W.)
| | - Jie Li
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD (P.X., C.W., J. Li, H.S., L.Y., P.W., M.T.L., X.W.).,Vascular Biology Center and Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA (J. Li, H.S.)
| | - Huabo Su
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD (P.X., C.W., J. Li, H.S., L.Y., P.W., M.T.L., X.W.).,Vascular Biology Center and Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA (J. Li, H.S.)
| | - Liuqing Yang
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD (P.X., C.W., J. Li, H.S., L.Y., P.W., M.T.L., X.W.)
| | - Penglong Wu
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD (P.X., C.W., J. Li, H.S., L.Y., P.W., M.T.L., X.W.).,Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Affiliated Cancer Hospital of Guangzhou Medical University, Guangdong, China (P.W., J. Liu)
| | - Megan T Lewno
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD (P.X., C.W., J. Li, H.S., L.Y., P.W., M.T.L., X.W.)
| | - Jinbao Liu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Affiliated Cancer Hospital of Guangzhou Medical University, Guangdong, China (P.W., J. Liu)
| | - Xuejun Wang
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD (P.X., C.W., J. Li, H.S., L.Y., P.W., M.T.L., X.W.)
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20
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Islam M, Diwan A, Mani K. Come Together: Protein Assemblies, Aggregates and the Sarcostat at the Heart of Cardiac Myocyte Homeostasis. Front Physiol 2020; 11:586. [PMID: 32581848 PMCID: PMC7287178 DOI: 10.3389/fphys.2020.00586] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/11/2020] [Indexed: 12/13/2022] Open
Abstract
Homeostasis in vertebrate systems is contingent on normal cardiac function. This, in turn, depends on intricate protein-based cellular machinery, both for contractile function, as well as, durability of cardiac myocytes. The cardiac small heat shock protein (csHsp) chaperone system, highlighted by αB-crystallin (CRYAB), a small heat shock protein (sHsp) that forms ∼3–5% of total cardiac mass, plays critical roles in maintaining proteostatic function via formation of self-assembled multimeric chaperones. In this work, we review these ancient proteins, from the evolutionarily preserved role of homologs in protists, fungi and invertebrate systems, as well as, the role of sHsps and chaperones in maintaining cardiac myocyte structure and function. We propose the concept of the “sarcostat” as a protein quality control mechanism in the sarcomere. The roles of the proteasomal and lysosomal proteostatic network, as well as, the roles of the aggresome, self-assembling protein complexes and protein aggregation are discussed in the context of cardiac myocyte homeostasis. Finally, we will review the potential for targeting the csHsp system as a novel therapeutic approach to prevent and treat cardiomyopathy and heart failure.
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Affiliation(s)
- Moydul Islam
- Division of Cardiology, Washington University School of Medicine, St. Louis, MO, United States.,Center for Cardiovascular Research, Washington University School of Medicine, St. Louis, MO, United States.,Department of Chemistry, Washington University in St. Louis, St. Louis, MO, United States
| | - Abhinav Diwan
- Division of Cardiology, Washington University School of Medicine, St. Louis, MO, United States.,Center for Cardiovascular Research, Washington University School of Medicine, St. Louis, MO, United States.,John Cochran Veterans Affairs Medical Center, St. Louis, MO, United States
| | - Kartik Mani
- Division of Cardiology, Washington University School of Medicine, St. Louis, MO, United States.,Center for Cardiovascular Research, Washington University School of Medicine, St. Louis, MO, United States.,John Cochran Veterans Affairs Medical Center, St. Louis, MO, United States
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21
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Quiles JM, Gustafsson ÅB. Mitochondrial Quality Control and Cellular Proteostasis: Two Sides of the Same Coin. Front Physiol 2020; 11:515. [PMID: 32528313 PMCID: PMC7263099 DOI: 10.3389/fphys.2020.00515] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial dysfunction is a hallmark of cardiac pathophysiology. Defects in mitochondrial performance disrupt contractile function, overwhelm myocytes with reactive oxygen species (ROS), and transform these cellular powerhouses into pro-death organelles. Thus, quality control (QC) pathways aimed at identifying and removing damaged mitochondrial proteins, components, or entire mitochondria are crucial processes in post-mitotic cells such as cardiac myocytes. Almost all of the mitochondrial proteins are encoded by the nuclear genome and the trafficking of these nuclear-encoded proteins necessitates significant cross-talk with the cytosolic protein QC machinery to ensure that only functional proteins are delivered to the mitochondria. Within the organelle, mitochondria contain their own protein QC system consisting of chaperones and proteases. This system represents another level of QC to promote mitochondrial protein folding and prevent aggregation. If this system is overwhelmed, a conserved transcriptional response known as the mitochondrial unfolded protein response is activated to increase the expression of proteins involved in restoring mitochondrial proteostasis. If the mitochondrion is beyond repair, the entire organelle must be removed before it becomes cytotoxic and causes cellular damage. Recent evidence has also uncovered mitochondria as participants in cytosolic protein QC where misfolded cytosolic proteins can be imported and degraded inside mitochondria. However, this process also places increased pressure on mitochondrial QC pathways to ensure that the imported proteins do not cause mitochondrial dysfunction. This review is focused on discussing the pathways involved in regulating mitochondrial QC and their relationship to cellular proteostasis and mitochondrial health in the heart.
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Affiliation(s)
- Justin M Quiles
- Department of Pharmacology, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Åsa B Gustafsson
- Department of Pharmacology, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
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22
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Billah M, Ridiandries A, Allahwala UK, Mudaliar H, Dona A, Hunyor S, Khachigian LM, Bhindi R. Remote Ischemic Preconditioning induces Cardioprotective Autophagy and Signals through the IL-6-Dependent JAK-STAT Pathway. Int J Mol Sci 2020; 21:ijms21051692. [PMID: 32121587 PMCID: PMC7084188 DOI: 10.3390/ijms21051692] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 02/19/2020] [Accepted: 02/27/2020] [Indexed: 02/08/2023] Open
Abstract
Autophagy is a cellular process by which mammalian cells degrade and assist in recycling damaged organelles and proteins. This study aimed to ascertain the role of autophagy in remote ischemic preconditioning (RIPC)-induced cardioprotection. Sprague Dawley rats were subjected to RIPC at the hindlimb followed by a 30-min transient blockade of the left coronary artery to simulate ischemia reperfusion (I/R) injury. Hindlimb muscle and the heart were excised 24 h post reperfusion. RIPC prior to I/R upregulated autophagy in the rat heart at 24 h post reperfusion. In vitro, autophagy inhibition or stimulation prior to RIPC, respectively, either ameliorated or stimulated the cardioprotective effect, measured as improved cell viability to mimic the preconditioning effect. Recombinant interleukin-6 (IL-6) treatment prior to I/R increased in vitro autophagy in a dose-dependent manner, activating the Janus kinase/signal transducers and activators of transcription (JAK-STAT) pathway without affecting the other kinase pathways, such as p38 mitogen-activated protein kinases (MAPK), and glycogen synthase kinase 3 Beta (GSK-3β) pathways. Prior to I/R, in vitro inhibition of the JAK-STAT pathway reduced autophagy upregulation despite recombinant IL-6 pre-treatment. Autophagy is an essential component of RIPC-induced cardioprotection that may upregulate autophagy through an IL-6/JAK-STAT-dependent mechanism, thus identifying a potentially new therapeutic option for the treatment of ischemic heart disease.
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Affiliation(s)
- Muntasir Billah
- Department of Cardiology, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia; (A.R.); (U.K.A.); (H.M.); (A.D.); (S.H.); (R.B.)
- Sydney Medical School Northern, University of Sydney, Sydney, NSW 2006, Australia
- School of Life Sciences, Independent University Bangladesh, Dhaka 1229, Bangladesh
- Correspondence:
| | - Anisyah Ridiandries
- Department of Cardiology, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia; (A.R.); (U.K.A.); (H.M.); (A.D.); (S.H.); (R.B.)
- Sydney Medical School Northern, University of Sydney, Sydney, NSW 2006, Australia
| | - Usaid K Allahwala
- Department of Cardiology, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia; (A.R.); (U.K.A.); (H.M.); (A.D.); (S.H.); (R.B.)
- Sydney Medical School Northern, University of Sydney, Sydney, NSW 2006, Australia
| | - Harshini Mudaliar
- Department of Cardiology, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia; (A.R.); (U.K.A.); (H.M.); (A.D.); (S.H.); (R.B.)
| | - Anthony Dona
- Department of Cardiology, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia; (A.R.); (U.K.A.); (H.M.); (A.D.); (S.H.); (R.B.)
| | - Stephen Hunyor
- Department of Cardiology, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia; (A.R.); (U.K.A.); (H.M.); (A.D.); (S.H.); (R.B.)
| | - Levon M. Khachigian
- Vascular Biology and Translational Research, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia;
| | - Ravinay Bhindi
- Department of Cardiology, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia; (A.R.); (U.K.A.); (H.M.); (A.D.); (S.H.); (R.B.)
- Sydney Medical School Northern, University of Sydney, Sydney, NSW 2006, Australia
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23
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Kulek AR, Anzell A, Wider JM, Sanderson TH, Przyklenk K. Mitochondrial Quality Control: Role in Cardiac Models of Lethal Ischemia-Reperfusion Injury. Cells 2020; 9:cells9010214. [PMID: 31952189 PMCID: PMC7016592 DOI: 10.3390/cells9010214] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/10/2020] [Accepted: 01/12/2020] [Indexed: 02/07/2023] Open
Abstract
The current standard of care for acute myocardial infarction or 'heart attack' is timely restoration of blood flow to the ischemic region of the heart. While reperfusion is essential for the salvage of ischemic myocardium, re-introduction of blood flow paradoxically kills (rather than rescues) a population of previously ischemic cardiomyocytes-a phenomenon referred to as 'lethal myocardial ischemia-reperfusion (IR) injury'. There is long-standing and exhaustive evidence that mitochondria are at the nexus of lethal IR injury. However, during the past decade, the paradigm of mitochondria as mediators of IR-induced cardiomyocyte death has been expanded to include the highly orchestrated process of mitochondrial quality control. Our aims in this review are to: (1) briefly summarize the current understanding of the pathogenesis of IR injury, and (2) incorporating landmark data from a broad spectrum of models (including immortalized cells, primary cardiomyocytes and intact hearts), provide a critical discussion of the emerging concept that mitochondrial dynamics and mitophagy (the components of mitochondrial quality control) may contribute to the pathogenesis of cardiomyocyte death in the setting of ischemia-reperfusion.
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Affiliation(s)
- Andrew R. Kulek
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Anthony Anzell
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Joseph M. Wider
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Thomas H. Sanderson
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Karin Przyklenk
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Emergency Medicine, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Correspondence: ; Tel.: +1-313-577-9047
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24
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Liu Y, Feng S, Subedi K, Wang H. Attenuation of Ischemic Stroke-Caused Brain Injury by a Monoamine Oxidase Inhibitor Involves Improved Proteostasis and Reduced Neuroinflammation. Mol Neurobiol 2019; 57:937-948. [PMID: 31620993 PMCID: PMC7035161 DOI: 10.1007/s12035-019-01788-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 09/12/2019] [Indexed: 01/01/2023]
Abstract
Mitochondrial dysfunction and oxidative stress play a key role in ischemia/reperfusion (I/R) induced brain injury. We previously showed that ubiquilin-1 (Ubqln1), a ubiquitin-like protein, improves proteostasis and protects brains against oxidative stress and I/R induced brain injury. We demonstrate here that nialamide (NM), a non-selective monoamine oxidase (MAO) inhibitor, upregulated Ublqn1 and protected neurons from oxygen-glucose deprivation- and I/R-caused cell death in in vitro and in vivo, respectively. Post-ischemic administration of the NM in a stroke mouse model even at 3 h following I/R still reduced neuronal injury and improved functional recovery and survival. Treating stroke animals with NM also increased the association of Ubqln1 with mitochondria and decreased the total oxidized and polyubiquitinated protein levels. Intriguingly, NM-enhanced proteostasis was also associated with reduced I/R-caused neuroinflammation, as reflected by attenuated activation of microglia and astrocytes as well as reduced TNF-α level. Thus, our results suggest that MAO inhibition-induced neuroprotection following I/R involves improved proteostasis and reduced neuroinflammation.
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Affiliation(s)
- Yanying Liu
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA
| | - Shelley Feng
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA
| | - Kalpana Subedi
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA
| | - Hongmin Wang
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA.
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25
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Wei L, Zhang Y, Qi X, Sun X, Li Y, Xu Y. Ubiquitin‑proteasomes are the dominant mediators of the regulatory effect of microRNA‑1 on cardiac remodeling after myocardial infarction. Int J Mol Med 2019; 44:1899-1907. [PMID: 31485642 PMCID: PMC6777676 DOI: 10.3892/ijmm.2019.4330] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 08/20/2019] [Indexed: 12/25/2022] Open
Abstract
Patients with ischemic hearts who have refused coronary vascular reconstruction may exhibit dynamic myocardial remodeling and cardiac dysfunction. In the present study, the role of miRNA-1 and its association with the ubiquitin-proteasome system (UPS) in regulating myocardial remodeling was investigated. A myocardial infarction (MI) model was constructed and the hearts were treated with miRNA-1 antagomir, miRNA-1 lentiviral vectors and the UPS proteasome blocker bortezomib. The expression levels of miRNA-1 were evaluated using reverse transcription PCR and the abundance of the ubiquitin-proteasome protein and caspase-3 were evaluated via western blot analysis. Furthermore, the collagen volume fraction was calculated using Masson's trichrome staining, and the apoptosis index was detected via terminal deoxynucleotidyl transferase dUTP-biotin nick end labeling staining. Transforming growth factor (TGF)-β expression was assessed via immunohistochemical staining. Echocardiographic characteristics and myocardial infarct size were analyzed. miRNA-1 expression levels were found to be increased following MI. miRNA-1 antagomir administration clearly inhibited miRNA-1 expression, whereas the miRNA-1 lentiviral vector exerted the opposite effect. The levels of 19s proteasome, 20S proteasome and ubiquitin ligase E3 were decreased in the miRNA-1 antagomir group, but were significantly increased in the miRNA-1 lentiviral group; however, only 20S proteasome expression was decreased in the bortezomib group. Collagen hyperplasia and TGF-β expression were decreased in both the miRNA-1 antagomir and bortezomib groups, although the effects of the miRNA-1 antagomir were more noticeable. The miRNA-1 antagomir and the UPS proteasome blocker both alleviated the ultrastructural impairments, demonstrated by a decreased left ventricular (LV) end-diastolic diameter and LV mass, but the miRNA-1 antagomir was also able to increase LV ejection fraction and LV fractional shortening. miRNA-1 regulated UPS-associated mRNA expression and affected the majority of the UPS components in the myocardium, thereby leading to increased myocardial cell apoptosis, myocardial fibrosis and remodeling. The miRNA-1 antagomir exerted a more prominent cardioprotective effect compared with the UPS proteasome blocker bortezomib.
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Affiliation(s)
- Liping Wei
- Department of Cardiology, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin 300121, P.R. China
| | - Yufan Zhang
- School of Graduate Studies, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Xin Qi
- Department of Cardiology, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin 300121, P.R. China
| | - Xuseng Sun
- School of Graduate Studies, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Yuanyang Li
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
| | - Yue Xu
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
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26
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Caporizzo MA, Chen CY, Prosser BL. Cardiac microtubules in health and heart disease. Exp Biol Med (Maywood) 2019; 244:1255-1272. [PMID: 31398994 DOI: 10.1177/1535370219868960] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cardiomyocytes are large (∼40,000 µm3), rod-shaped muscle cells that provide the working force behind each heartbeat. These highly structured cells are packed with dense cytoskeletal networks that can be divided into two groups—the contractile (i.e. sarcomeric) cytoskeleton that consists of filamentous actin-myosin arrays organized into myofibrils, and the non-sarcomeric cytoskeleton, which is composed of β- and γ-actin, microtubules, and intermediate filaments. Together, microtubules and intermediate filaments form a cross-linked scaffold, and these networks are responsible for the delivery of intracellular cargo, the transmission of mechanical signals, the shaping of membrane systems, and the organization of myofibrils and organelles. Microtubules are extensively altered as part of both adaptive and pathological cardiac remodeling, which has diverse ramifications for the structure and function of the cardiomyocyte. In heart failure, the proliferation and post-translational modification of the microtubule network is linked to a number of maladaptive processes, including the mechanical impediment of cardiomyocyte contraction and relaxation. This raises the possibility that reversing microtubule alterations could improve cardiac performance, yet therapeutic efforts will strongly benefit from a deeper understanding of basic microtubule biology in the heart. The aim of this review is to summarize the known physiological roles of the cardiomyocyte microtubule network, the consequences of its pathological remodeling, and to highlight the open and intriguing questions regarding cardiac microtubules. Impact statement Advancements in cell biological and biophysical approaches and super-resolution imaging have greatly broadened our view of tubulin biology over the last decade. In the heart, microtubules and microtubule-based transport help to organize and maintain key structures within the cardiomyocyte, including the sarcomere, intercalated disc, protein clearance machinery and transverse-tubule and sarcoplasmic reticulum membranes. It has become increasingly clear that post translational regulation of microtubules is a key determinant of their sub-cellular functionality. Alterations in microtubule network density, stability, and post-translational modifications are hallmarks of pathological cardiac remodeling, and modified microtubules can directly impede cardiomyocyte contractile function in various forms of heart disease. This review summarizes the functional roles and multi-leveled regulation of the cardiac microtubule cytoskeleton and highlights how refined experimental techniques are shedding mechanistic clarity on the regionally specified roles of microtubules in cardiac physiology and pathophysiology.
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Affiliation(s)
- Matthew A Caporizzo
- Department of Physiology, Pennsylvania Muscle Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Christina Yingxian Chen
- Department of Physiology, Pennsylvania Muscle Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Benjamin L Prosser
- Department of Physiology, Pennsylvania Muscle Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.,Penn Cardiovascular Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
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27
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Shaping Striated Muscles with Ubiquitin Proteasome System in Health and Disease. Trends Mol Med 2019; 25:760-774. [PMID: 31235369 DOI: 10.1016/j.molmed.2019.05.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/03/2019] [Accepted: 05/23/2019] [Indexed: 02/06/2023]
Abstract
For long-lived contractile cells, such as striated muscle cells, maintaining proteome integrity is a challenging task. These cells require hundreds of components that must be properly synthesized, folded, and incorporated into the basic contractile unit, the sarcomere. Muscle protein quality control in cells is mainly guaranteed by the ubiquitin-proteasome system (UPS), the lysosome-autophagy system, and various molecular chaperones. Recent studies establish the concept of dedicated UPS in the regulation of sarcomere assembly during development and in adult life to maintain the intricate and interwoven organization of protein complexes in muscle. Failure of sarcomere protein quality control often represents the basis of severe myopathies and cardiomyopathies in human, further highlighting its importance in producing and maintaining the contractile machinery of muscle cells in shape.
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28
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Zhang H, Pan B, Wu P, Parajuli N, Rekhter MD, Goldberg AL, Wang X. PDE1 inhibition facilitates proteasomal degradation of misfolded proteins and protects against cardiac proteinopathy. SCIENCE ADVANCES 2019; 5:eaaw5870. [PMID: 31131329 PMCID: PMC6531002 DOI: 10.1126/sciadv.aaw5870] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 04/11/2019] [Indexed: 06/09/2023]
Abstract
No current treatment targets cardiac proteotoxicity or can reduce mortality of heart failure (HF) with preserved ejection fraction (HFpEF). Selective degradation of misfolded proteins by the ubiquitin-proteasome system (UPS) is vital to the cell. Proteasome impairment contributes to HF. Activation of cAMP-dependent protein kinase (PKA) or cGMP-dependent protein kinase (PKG) facilitates proteasome functioning. Phosphodiesterase 1 (PDE1) hydrolyzes both cyclic nucleotides and accounts for most PDE activities in human myocardium. We report that PDE1 inhibition (IC86430) increases myocardial 26S proteasome activities and UPS proteolytic function in mice. Mice with CryABR120G-based proteinopathy develop HFpEF and show increased myocardial PDE1A expression. PDE1 inhibition markedly attenuates HFpEF, improves mouse survival, increases PKA-mediated proteasome phosphorylation, and reduces myocardial misfolded CryAB. Therefore, PDE1 inhibition induces PKA- and PKG-mediated promotion of proteasomal degradation of misfolded proteins and treats HFpEF caused by CryABR120G, representing a potentially new therapeutic strategy for HFpEF and heart disease with increased proteotoxic stress.
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Affiliation(s)
- Hanming Zhang
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD 57069, USA
| | - Bo Pan
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD 57069, USA
| | - Penglong Wu
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD 57069, USA
- Department of Pathophysiology, Guangzhou Medical University College of Basic Medical Sciences, Guangzhou, Guangdong 511436, China
| | - Nirmal Parajuli
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD 57069, USA
| | - Mark D. Rekhter
- Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN 46285, USA
| | - Alfred L. Goldberg
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Xuejun Wang
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD 57069, USA
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29
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Kobayashi M, Higa JK, Matsui T. The role of ubiquitin in cardiac ischemia-reperfusion injury. Am J Physiol Heart Circ Physiol 2019; 316:H583-H585. [PMID: 30657725 DOI: 10.1152/ajpheart.00018.2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Motoi Kobayashi
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, Hawai'i
| | - Jason K Higa
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, Hawai'i
| | - Takashi Matsui
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, Hawai'i
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30
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Abstract
Protein quality control (PQC) mechanisms are essential for maintaining cardiac function, and alterations in this pathway influence multiple forms of heart disease. Since heart disease is the leading cause of death worldwide, understanding how the delicate balance between protein synthesis and degradation is regulated in the heart demands attention. The study by Hu et al. reveals that the extraproteasomal ubiquitin receptor Ubiquilin1 (Ubqln1) plays an important role in cardiac ubiquitination-proteasome coupling, particularly in response to myocardial ischemia/reperfusion injury, thereby suggesting that this may be a new avenue for therapeutics.
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