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Mensah IK, Gowher H. Epigenetic Regulation of Mammalian Cardiomyocyte Development. EPIGENOMES 2024; 8:25. [PMID: 39051183 PMCID: PMC11270418 DOI: 10.3390/epigenomes8030025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/07/2024] [Accepted: 06/25/2024] [Indexed: 07/27/2024] Open
Abstract
The heart is the first organ formed during mammalian development and functions to distribute nutrients and oxygen to other parts of the developing embryo. Cardiomyocytes are the major cell types of the heart and provide both structural support and contractile function to the heart. The successful differentiation of cardiomyocytes during early development is under tight regulation by physical and molecular factors. We have reviewed current studies on epigenetic factors critical for cardiomyocyte differentiation, including DNA methylation, histone modifications, chromatin remodelers, and noncoding RNAs. This review also provides comprehensive details on structural and morphological changes associated with the differentiation of fetal and postnatal cardiomyocytes and highlights their differences. A holistic understanding of all aspects of cardiomyocyte development is critical for the successful in vitro differentiation of cardiomyocytes for therapeutic purposes.
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Affiliation(s)
| | - Humaira Gowher
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA
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2
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Fan YP, Lou JS, Jin MR, Zhou CH, Shen HH, Fu CY, Mao XJ, Chen YY, Zhong JJ, Wang LL, Wu JS. UBC9-mediated SUMOylation of Lamin B1 enhances DNA-damage-induced nuclear DNA leakage and autophagy after spinal cord injury. J Cell Physiol 2024; 239:e31213. [PMID: 38308641 DOI: 10.1002/jcp.31213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/17/2024] [Accepted: 01/22/2024] [Indexed: 02/05/2024]
Abstract
Recent studies have shown that nucleophagy can mitigate DNA damage by selectively degrading nuclear components protruding from the nucleus. However, little is known about the role of nucleophagy in neurons after spinal cord injury (SCI). Western blot analysis and immunofluorescence were performed to evaluate the nucleophagy after nuclear DNA damage and leakage in SCI neurons in vivo and NSC34 expression in primary neurons cultured with oxygen-glucose deprivation (OGD) in vitro, as well as the interaction and colocalization of autophagy protein LC3 with nuclear lamina protein Lamin B1. The effect of UBC9, a Small ubiquitin-related modifier (SUMO) E2 ligase, on Lamin B1 SUMOylation and nucleophagy was examined by siRNA transfection or 2-D08 (a small-molecule inhibitor of UBC9), immunoprecipitation, and immunofluorescence. In SCI and OGD injured NSC34 or primary cultured neurons, neuronal nuclear DNA damage induced the SUMOylation of Lamin B1, which was required by the nuclear Lamina accumulation of UBC9. Furthermore, LC3/Atg8, an autophagy-related protein, directly bound to SUMOylated Lamin B1, and delivered Lamin B1 to the lysosome. Knockdown or suppression of UBC9 with siRNA or 2-D08 inhibited SUMOylation of Lamin B1 and subsequent nucleophagy and protected against neuronal death. Upon neuronal DNA damage and leakage after SCI, SUMOylation of Lamin B1 is induced by nuclear Lamina accumulation of UBC9. Furthermore, it promotes LC3-Lamin B1 interaction to trigger nucleophagy that protects against neuronal DNA damage.
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Affiliation(s)
- Yun-Peng Fan
- Department of Orthopaedics, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jun-Sheng Lou
- Department of Orthopaedics, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Meng-Ran Jin
- Department of Orthopaedics, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Cong-Hui Zhou
- Department of Orthopaedics, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hong-Hao Shen
- Department of Orthopaedics, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chun-Yan Fu
- Department of Basic Medicine Sciences, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xing-Jia Mao
- Department of Basic Medicine Sciences, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ying-Ying Chen
- Department of Basic Medicine Sciences, Zhejiang University School of Medicine, Hangzhou, China
| | - Jin-Jie Zhong
- Department of Basic Medicine Sciences, Zhejiang University School of Medicine, Hangzhou, China
| | - Lin-Lin Wang
- Department of Basic Medicine Sciences, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- School of Medicine, Tarim University, Ale, China
| | - Jun-Song Wu
- Department of Orthopaedics, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Yu Q, Barndt RJ, Shen Y, Sallam K, Tang Y, Chan SY, Wu JC, Liu Q, Wu H. Mitigation of Stress-induced Structural Remodeling and Functional Deficiency in iPSC-CMs with PLN R9C Mutation by Promoting Autophagy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.17.589921. [PMID: 38659742 PMCID: PMC11042320 DOI: 10.1101/2024.04.17.589921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Background Phospholamban (PLN) is a key regulator of cardiac function connecting adrenergic signaling and calcium homeostasis. The R9C mutation of PLN is known to cause early onset dilated cardiomyopathy (DCM) and premature death, yet the detailed mechanisms underlie the pathologic remodeling process are not well defined in human cardiomyocytes. The aim of this study is to unravel the role of PLN R9C in DCM and identify potential therapeutic targets. Methods PLN R9C knock-in (KI) and patient-specific induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) were generated and comprehensively examined for their expression profile, contractile function, and cellular signaling under both baseline conditions and following functional challenges. Results PLN R9C KI iPSC-CMs exhibited near-normal morphology and calcium handling, slightly increased contractility, and an attenuated response to β-adrenergic activation compared to wild-type (WT) cells. However, treatment with a maturation medium (MM) has induced fundamentally different remodeling in the two groups: while it improved the structural integrity and functional performance of WT cells, the same treatment result in sarcomere disarrangement, calcium handling deficiency, and further disrupted adrenergic signaling in PLN R9C KI cells. To understand the mechanism, transcriptomic analysis showed the enrichment of protein homeostasis signaling pathways specifically in PLN R9C KI cells in response to the MM treatment and increased contractile demands. Further studies also indicated elevated ROS levels, interrupted autophagic flux, and increased pentamer PLN aggregation in functionally challenged KI cells. These results were further confirmed in patient-specific iPSC-CM models, suggesting that functional stresses exacerbate the deficiencies in PLN R9C cells through disrupting protein homeostasis. Indeed, treating stressed patient cells with autophagy-accelerating reagents, such as metformin and rapamycin, has restored autophagic flux, mitigated sarcomere disarrangement, and partially rescued β-adrenergic signaling and cardiac function. Conclusions PLN R9C leads to a mild increase of calcium recycling and contractility. Functional challenges further enhanced contractile and proteostasis stress, leading to autophagic overload, structural remodeling, and functional deficiencies in PLN R9C cardiomyocytes. Activation of autophagy signaling partially rescues these effects, revealing a potential therapeutic target for DCM patients with the PLN R9C mutation. Graphic abstracts A graphic abstract is available for this article.
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4
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Zhu G, Tong N, Zhu Y, Wang L, Wang Q. The crosstalk between SUMOylation and immune system in host-pathogen interactions. Crit Rev Microbiol 2024:1-23. [PMID: 38619159 DOI: 10.1080/1040841x.2024.2339259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 04/01/2024] [Indexed: 04/16/2024]
Abstract
Pathogens can not only cause infectious diseases, immune system diseases, and chronic diseases, but also serve as potential triggers or initiators for certain tumors. They directly or indirectly damage human health and are one of the leading causes of global deaths. Small ubiquitin-like modifier (SUMO) modification, a type of protein post-translational modification (PTM) that occurs when SUMO groups bond covalently to particular lysine residues on substrate proteins, plays a crucial role in both innate and adaptive immunologic responses, as well as pathogen-host immune system crosstalk. SUMOylation participates in the host's defense against pathogens by regulating immune responses, while numerically vast and taxonomically diverse pathogens have evolved to exploit the cellular SUMO modification system to break through innate defenses. Here, we describe the characteristics and multiple functions of SUMOylation as a pivotal PTM mechanism, the tactics employed by various pathogens to counteract the immune system through targeting host SUMOylation, and the character of the SUMOylation system in the fight between pathogens and the host immune system. We have also included a summary of the potential anti-pathogen SUMO enzyme inhibitors. This review serves as a reference for basic research and clinical practice in the diagnosis, prognosis, and treatment of pathogenic microorganism-caused disorders.
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Affiliation(s)
- Gangli Zhu
- Guangdong Province Solid Waste Recycling and Heavy Metal Pollution Control Engineering Technology Research Center, Guangdong Polytechnic of Environment Protection Engineering, Foshan, Guangdong, China
| | - Ni Tong
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
- Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong, China
| | - Yipeng Zhu
- Guagnzhou NO.6 Middle school, Guangzhou, Guangdong, China
| | - Lize Wang
- General Department, Institute of Software Chinese Academy of Sciences, Beijing, China
| | - Qirui Wang
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
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5
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Zhou Y, Zheng Z, Wu S, Zhu J. Ubiquitin-conjugating enzyme E2 for regulating autophagy in diabetic cardiomyopathy: A mini-review. J Diabetes 2024; 16:e13511. [PMID: 38052719 PMCID: PMC10925883 DOI: 10.1111/1753-0407.13511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 11/18/2023] [Indexed: 12/07/2023] Open
Abstract
The prevalence of diabetic cardiomyopathy (DCM) increases year by year with the increase in the prevalence of diabetes mellitus (DM), which is one of the most serious cardiovascular complications of DM and a major cause of death in diabetic patients. Although the pathological molecular features of DCM have not been fully elucidated, increasing evidence suggests that impaired autophagy in cardiomyocytes plays a nonnegligible role in the development of DCM. It has been shown that SUMOylation [SUMO = small ubiquitin-like modifier], a post-translational modification of proteins, and its associated ubiquitin-proteasome system mediates protein quality control in the heart and plays an important role in the proteotoxic environment of the heart. Specifically, the expression of ubiquitin-conjugating enzyme E2 (Ubc9), the only SUMO-E2 enzyme, exerts a positive regulatory effect on autophagy in cardiomyocytes with potential cardioprotective effects. This review focuses on the role that autophagy plays in DCM and the potential for Ubc9-regulated autophagy pathways to ameliorate DCM, highlighting the potential of Ubc9 as an interventional target in DCM and providing new insights into the pathogenesis of the disease.
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Affiliation(s)
- Yueran Zhou
- Institute of Clinical Electrocardiology, First Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Zequn Zheng
- Institute of Clinical Electrocardiology, First Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Shenglin Wu
- Institute of Clinical Electrocardiology, First Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Jinxiu Zhu
- Institute of Clinical Electrocardiology, First Affiliated Hospital of Shantou University Medical CollegeShantouChina
- Longgang Maternity and Child Institute of Shantou University Medical College (Longgang District Maternity & Child Healthcare Hospital of Shenzhen City)ShenzhenChina
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6
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Tsare EPG, Klapa MI, Moschonas NK. Protein-protein interaction network-based integration of GWAS and functional data for blood pressure regulation analysis. Hum Genomics 2024; 18:15. [PMID: 38326862 DOI: 10.1186/s40246-023-00565-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/12/2023] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND It is valuable to analyze the genome-wide association studies (GWAS) data for a complex disease phenotype in the context of the protein-protein interaction (PPI) network, as the related pathophysiology results from the function of interacting polyprotein pathways. The analysis may include the design and curation of a phenotype-specific GWAS meta-database incorporating genotypic and eQTL data linking to PPI and other biological datasets, and the development of systematic workflows for PPI network-based data integration toward protein and pathway prioritization. Here, we pursued this analysis for blood pressure (BP) regulation. METHODS The relational scheme of the implemented in Microsoft SQL Server BP-GWAS meta-database enabled the combined storage of: GWAS data and attributes mined from GWAS Catalog and the literature, Ensembl-defined SNP-transcript associations, and GTEx eQTL data. The BP-protein interactome was reconstructed from the PICKLE PPI meta-database, extending the GWAS-deduced network with the shortest paths connecting all GWAS-proteins into one component. The shortest-path intermediates were considered as BP-related. For protein prioritization, we combined a new integrated GWAS-based scoring scheme with two network-based criteria: one considering the protein role in the reconstructed by shortest-path (RbSP) interactome and one novel promoting the common neighbors of GWAS-prioritized proteins. Prioritized proteins were ranked by the number of satisfied criteria. RESULTS The meta-database includes 6687 variants linked with 1167 BP-associated protein-coding genes. The GWAS-deduced PPI network includes 1065 proteins, with 672 forming a connected component. The RbSP interactome contains 1443 additional, network-deduced proteins and indicated that essentially all BP-GWAS proteins are at most second neighbors. The prioritized BP-protein set was derived from the union of the most BP-significant by any of the GWAS-based or the network-based criteria. It included 335 proteins, with ~ 2/3 deduced from the BP PPI network extension and 126 prioritized by at least two criteria. ESR1 was the only protein satisfying all three criteria, followed in the top-10 by INSR, PTN11, CDK6, CSK, NOS3, SH2B3, ATP2B1, FES and FINC, satisfying two. Pathway analysis of the RbSP interactome revealed numerous bioprocesses, which are indeed functionally supported as BP-associated, extending our understanding about BP regulation. CONCLUSIONS The implemented workflow could be used for other multifactorial diseases.
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Affiliation(s)
- Evridiki-Pandora G Tsare
- Department of General Biology, School of Medicine, University of Patras, Patras, Greece
- Metabolic Engineering and Systems Biology Laboratory, Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patras, Greece
| | - Maria I Klapa
- Metabolic Engineering and Systems Biology Laboratory, Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patras, Greece.
| | - Nicholas K Moschonas
- Department of General Biology, School of Medicine, University of Patras, Patras, Greece.
- Metabolic Engineering and Systems Biology Laboratory, Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patras, Greece.
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Wu KJ, Chen Q, Leung CH, Sun N, Gao F, Chen Z. Recent discoveries of the role of histone modifications and related inhibitors in pathological cardiac hypertrophy. Drug Discov Today 2024; 29:103878. [PMID: 38211819 DOI: 10.1016/j.drudis.2024.103878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/19/2023] [Accepted: 01/05/2024] [Indexed: 01/13/2024]
Abstract
Pathological cardiac hypertrophy is a common response of the heart to various pathological stimuli. In recent years, various histone modifications, including acetylation, methylation, phosphorylation and ubiquitination, have been identified to have crucial roles in regulating chromatin remodeling and cardiac hypertrophy. Novel drugs targeting these epigenetic changes have emerged as potential treatments for pathological cardiac hypertrophy. In this review, we provide a comprehensive summary of the roles of histone modifications in regulating the development of pathological cardiac hypertrophy, and discuss potential therapeutic targets that could be utilized for its treatment.
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Affiliation(s)
- Ke-Jia Wu
- Wuxi School of Medicine, Jiangnan University, Jiangsu 214082, PR China
| | - Qi Chen
- Wuxi School of Medicine, Jiangnan University, Jiangsu 214082, PR China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa 999078, Macau; Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau; Macao Centre for Research and Development in Chinese Medicine, University of Macau, Taipa 999078, Macau; MoE Frontiers Science Centre for Precision Oncology, University of Macau, Taipa 999078, Macau.
| | - Ning Sun
- Wuxi School of Medicine, Jiangnan University, Jiangsu 214082, PR China.
| | - Fei Gao
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Chaoyang District, Beijing 100029, PR China.
| | - Zhaoyang Chen
- Department of Cardiology, Heart Center of Fujian Province, Fujian Medical University Union Hospital, 29 Xin-Quan Road, Fuzhou, Fujian 350001, PR China.
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8
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Zhang H, Hu H, Zhai C, Jing L, Tian H. Cardioprotective Strategies After Ischemia-Reperfusion Injury. Am J Cardiovasc Drugs 2024; 24:5-18. [PMID: 37815758 PMCID: PMC10806044 DOI: 10.1007/s40256-023-00614-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/28/2023] [Indexed: 10/11/2023]
Abstract
Acute myocardial infarction (AMI) is associated with high morbidity and mortality worldwide. Although early reperfusion is the most effective strategy to salvage ischemic myocardium, reperfusion injury can develop with the restoration of blood flow. Therefore, it is important to identify protection mechanisms and strategies for the heart after myocardial infarction. Recent studies have shown that multiple intracellular molecules and signaling pathways are involved in cardioprotection. Meanwhile, device-based cardioprotective modalities such as cardiac left ventricular unloading, hypothermia, coronary sinus intervention, supersaturated oxygen (SSO2), and remote ischemic conditioning (RIC) have become important areas of research. Herein, we review the molecular mechanisms of cardioprotection and cardioprotective modalities after ischemia-reperfusion injury (IRI) to identify potential approaches to reduce mortality and improve prognosis in patients with AMI.
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Affiliation(s)
- Honghong Zhang
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China
| | - Huilin Hu
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China.
| | - Changlin Zhai
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China
| | - Lele Jing
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China
| | - Hongen Tian
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China
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9
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Wang W, Matunis MJ. Paralogue-Specific Roles of SUMO1 and SUMO2/3 in Protein Quality Control and Associated Diseases. Cells 2023; 13:8. [PMID: 38201212 PMCID: PMC10778024 DOI: 10.3390/cells13010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Small ubiquitin-related modifiers (SUMOs) function as post-translational protein modifications and regulate nearly every aspect of cellular function. While a single ubiquitin protein is expressed across eukaryotic organisms, multiple SUMO paralogues with distinct biomolecular properties have been identified in plants and vertebrates. Five SUMO paralogues have been characterized in humans, with SUMO1, SUMO2 and SUMO3 being the best studied. SUMO2 and SUMO3 share 97% protein sequence homology (and are thus referred to as SUMO2/3) but only 47% homology with SUMO1. To date, thousands of putative sumoylation substrates have been identified thanks to advanced proteomic techniques, but the identification of SUMO1- and SUMO2/3-specific modifications and their unique functions in physiology and pathology are not well understood. The SUMO2/3 paralogues play an important role in proteostasis, converging with ubiquitylation to mediate protein degradation. This function is achieved primarily through SUMO-targeted ubiquitin ligases (STUbLs), which preferentially bind and ubiquitylate poly-SUMO2/3 modified proteins. Effects of the SUMO1 paralogue on protein solubility and aggregation independent of STUbLs and proteasomal degradation have also been reported. Consistent with these functions, sumoylation is implicated in multiple human diseases associated with disturbed proteostasis, and a broad range of pathogenic proteins have been identified as SUMO1 and SUMO2/3 substrates. A better understanding of paralogue-specific functions of SUMO1 and SUMO2/3 in cellular protein quality control may therefore provide novel insights into disease pathogenesis and therapeutic innovation. This review summarizes current understandings of the roles of sumoylation in protein quality control and associated diseases, with a focus on the specific effects of SUMO1 and SUMO2/3 paralogues.
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Affiliation(s)
| | - Michael J. Matunis
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA;
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10
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Meng Z, Bian X, Ma L, Zhang G, Ma Q, Xu Q, Liu J, Wang R, Lun J, Lin Q, Zhao G, Jiang H, Qiu W, Fang J, Lu Z. UBC9 stabilizes PFKFB3 to promote aerobic glycolysis and proliferation of glioblastoma cells. Int J Biochem Cell Biol 2023; 165:106491. [PMID: 38149579 DOI: 10.1016/j.biocel.2023.106491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 12/28/2023]
Abstract
Cancer cells prefer to utilizing aerobic glycolysis to generate energy and anabolic metabolic intermediates for cell growth. However, whether the activities of glycolytic enzymes can be regulated by specific posttranslational modifications, such as SUMOylation, in response to oncogenic signallings, thereby promoting the Warburg effect, remain largely unclear. Here, we demonstrate that phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (PFKFB3), a key glycolytic enzyme, interacts with SUMO-conjugating enzyme UBC9 and is SUMOylated at K302 in glioblastoma cells. Expression of UBC9, which competitively prevents the binding of ubiquitin E3 ligase APC/C to PFKFB3 and subsequent PFKFB3 polyubiquitination, increases PFKFB3 stability and expression. Importantly, EGFR activation increases the interaction between UBC9 and PFKFB3, leading to increased SUMOylation and expression of PFKFB3. This increase is blocked by inhibition of EGFR-induced AKT activation whereas expression of activate AKT by itself was sufficient to recapitulate EGF-induced effect. Knockout of PFKFB3 expression decreases EGF-enhanced lactate production and GBM cell proliferation and this decrease was fully rescued by reconstituted expression of WT PFKFB3 whereas PFKFB3 K302R mutant expression abrogates EGF- and UBC9-regulated lactate production and GBM cell proliferation. These findings reveal a previously unknown mechanism underlying the regulation of the Warburg effect through the EGFR activation-induced and UBC9-mediated SUMOylation and stabilization of PFKFB3.
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Affiliation(s)
- Zhaoyuan Meng
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, School of Basic Medicine of Qingdao University, Qingdao 266000, China
| | - Xueli Bian
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China; School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Leina Ma
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Gang Zhang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Qingxia Ma
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Qianqian Xu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Juanjuan Liu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Runze Wang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Jie Lun
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Qian Lin
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Gaoxiang Zhao
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Hongfei Jiang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Wensheng Qiu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao 266000, China
| | - Jing Fang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, School of Basic Medicine of Qingdao University, Qingdao 266000, China.
| | - Zhimin Lu
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou 310029, China; Cancer Center, Zhejiang University, Hangzhou 310029, China.
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11
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Wang Y, Liu Z, Bian X, Zhao C, Zhang X, Liu X, Wang N. Function and regulation of ubiquitin-like SUMO system in heart. Front Cell Dev Biol 2023; 11:1294717. [PMID: 38033852 PMCID: PMC10687153 DOI: 10.3389/fcell.2023.1294717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
The small ubiquitin-related modifier (SUMOylation) system is a conserved, reversible, post-translational protein modification pathway covalently attached to the lysine residues of proteins in eukaryotic cells, and SUMOylation is catalyzed by SUMO-specific activating enzyme (E1), binding enzyme (E2) and ligase (E3). Sentrin-specific proteases (SENPs) can cleave the isopeptide bond of a SUMO conjugate and catalyze the deSUMOylation reaction. SUMOylation can regulate the activity of proteins in many important cellular processes, including transcriptional regulation, cell cycle progression, signal transduction, DNA damage repair and protein stability. Biological experiments in vivo and in vitro have confirmed the key role of the SUMO conjugation/deconjugation system in energy metabolism, Ca2+ cycle homeostasis and protein quality control in cardiomyocytes. In this review, we summarized the research progress of the SUMO conjugation/deconjugation system and SUMOylation-mediated cardiac actions based on related studies published in recent years, and highlighted the further research areas to clarify the role of the SUMO system in the heart by using emerging technologies.
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Affiliation(s)
- Ying Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin, China
| | - Zhihao Liu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiyun Bian
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin, China
- Tianjin Key Laboratory of Epigenetics for Organ Development in Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin, China
| | - Chenxu Zhao
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Xin Zhang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Xiaozhi Liu
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin, China
- Tianjin Key Laboratory of Epigenetics for Organ Development in Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin, China
| | - Nan Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
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Ma Y, Feng Q, Han B, Yu R, Jin Z. Elevated HMGB1 promotes the malignant progression and contributes to cisplatin resistance of non-small cell lung cancer. Hereditas 2023; 160:33. [PMID: 37518006 PMCID: PMC10388484 DOI: 10.1186/s41065-023-00294-9] [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: 05/17/2023] [Accepted: 07/17/2023] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND HMGB1 (high mobility group box B-1) exhibits crucial role in tumor genesis and development, including lung cancer. Whereas, more HMGB1-related details in non-small cell lung cancer (NSCLC) are still largely unclear. METHODS The HMGB1 and inflammatory factors in malignant (MPE) and non-malignant pleural effusion (BPE) were determined by ELISA. Additionally, qRT-PCR, western blot, or immunohistochemistry were used to determine HMGB1, drug-resistant and apoptotic proteins' expressions in NSCLC A549, A549-DDP cell lines, and xenograft model. Cell viability, migration/ invasion, and apoptosis were analyzed using MTT, Transwell, and flow cytometry assays, respectively. RESULTS Inflammatory factors and HMGB1 expressions in MPE were significantly higher than BPE of NSCLC. Compared with preoperative and adjacent tissues, significantly higher HMGB1, drug-resistant protein, and anti-apoptotic protein expressions were observed in recurrent tissues. Overexpressed HMGB1 induced NSCLC cells to exhibit stronger aggressive, proliferative, and drug-resistant features. The related abilities were reversed when HMGB1 was interfered. Overexpressed HMGB1 showed a similar co-localization with drug resistant protein P-gp in cytoplasm in xenograft model, while low HMGB1 expression localized in cell nucleus. CONCLUSIONS HMGB1 overexpression significantly promoted the malignant progression and cisplatin resistance of NSCLC in vitro and in vivo.
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Affiliation(s)
- Ying Ma
- Department of Thoracic Surgery, Affiliated People's Hospital of Inner Mongolia Medical University, No.1 Tong Dao Bei Road, Hohhot, 010059, China
| | - Qin Feng
- Inner Mongolia Cancer Hospital and Affiliated People's Hospital of Inner Mongolia Medical University, Hohhot, 010020, China
| | - Bateer Han
- Inner Mongolia Cancer Hospital and Affiliated People's Hospital of Inner Mongolia Medical University, Hohhot, 010020, China
| | - Rong Yu
- Inner Mongolia Cancer Hospital and Affiliated People's Hospital of Inner Mongolia Medical University, Hohhot, 010020, China
| | - Zhiyong Jin
- Department of Thoracic Surgery, Affiliated People's Hospital of Inner Mongolia Medical University, No.1 Tong Dao Bei Road, Hohhot, 010059, China.
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13
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Reduced SUMOylation of Nrf2 signaling contributes to its inhibition induced by amyloid-β. Neurosci Lett 2023; 799:137118. [PMID: 36764479 DOI: 10.1016/j.neulet.2023.137118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 01/15/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
Oxidative stress induced by amyloid-β (Aβ) has been considered as one of the important mechanisms in the development of Alzheimer disease (AD). The inhibition of endogenous antioxidant Nrf2 signaling in the brain of AD patients aggravates the oxidative damage, however, the causes of Nrf2 signaling inhibition are unclear. It is reported that smallubiquitin-like modification (SUMOylation) is involved in the process of oxidative injury. To investigate whether and how SUMOylation was involved in the inhibition of Nrf2 signaling pathway induced by Aβ, Aβ intrahippocampal injection rat model and Aβ treated SH-SY5Y cell model were used in the current study. Small interfering RNA and lentivirus transfection were used to intervene SUMOylation, and the level of SUMOylation was assessed by immunoprecipitation. The present in vivo and in vitro studies revealed that SUMOylation levels of Nrf2 and MafF, as well as the overall SUMOylation level were reduced under long-term Aβ insult. Meanwhile, the binding of Nrf2 to MafF was decreased, accompanied by low interaction with antioxidant response element (ARE) area of gene. Down-regulation of SUMO protein exacerbated the Aβ-induced inhibition of Nrf2 signaling pathway, while, enhancement of SUMOylation of Nrf2 and MafF by overexpression of Ubc9 reversed this process. These results imply that reduction in SUMOylation induced by Aβ contributed to the inhibition of Nrf2 signaling, and SUMOylation might be a potential therapeutic target of AD.
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14
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Lei X, Hu X, Lu Q, Fu W, Sun W, Ma Q, Huang D, Xu Q. Ubiquitin‑conjugating enzymes as potential biomarkers and therapeutic targets for digestive system cancers (Review). Oncol Rep 2023; 49:63. [PMID: 36799184 PMCID: PMC9944987 DOI: 10.3892/or.2023.8500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/16/2023] [Indexed: 02/15/2023] Open
Abstract
Digestive system cancers are the leading cause of cancer‑related death worldwide due to their high morbidity and mortality rates. The current treatment methods include surgical treatment, chemotherapy, radiotherapy and endoscopic treatment, and the precisely targeted therapy of digestive system cancers requires to be further studied. The ubiquitin‑proteasome system is the main pathway for protein degradation in cells and the ubiquitin‑conjugating enzymes (E2s) have a decisive role in the specific selection of target proteins for degradation. The E2s have an important physiological role in digestive system cancers, which is related to the clinical tumor stage, differentiation degree and poor prognosis. Furthermore, they are involved in the physiological processes of digestive system tumor cell proliferation, migration, invasion, stemness, drug resistance and autophagy. In the present article, the progress and achievements of the E2s in gastric cancer, hepatocellular carcinoma, pancreatic cancer, colorectal cancer, intrahepatic cholangiocarcinoma, gallbladder cancer and esophageal squamous cell carcinoma were reviewed, which may provide early screening indicators and reliable therapeutic targets for digestive system cancers.
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Affiliation(s)
- Xiangxiang Lei
- Institute of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 310053, P.R. China
| | - Xiaoge Hu
- The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Qiliang Lu
- Qingdao Medical College, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Wen Fu
- Qingdao Medical College, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Wen Sun
- Second Clinical Medical Institute, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Qiancheng Ma
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P.R. China
| | - Dongsheng Huang
- The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China,Correspondence to: Dr Dongsheng Huang or Dr Qiuran Xu, The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, 158 Shangtang Road, Gongshu, Hangzhou, Zhejiang 310014, P.R. China, E-mail:
| | - Qiuran Xu
- The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China,Correspondence to: Dr Dongsheng Huang or Dr Qiuran Xu, The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, 158 Shangtang Road, Gongshu, Hangzhou, Zhejiang 310014, P.R. China, E-mail:
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15
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Hassanzadeh K, Morrone C, Akhtari K, Gerhardt E, Zaccagnini L, Outeiro TF, Feligioni M. Non-SUMOylated alternative spliced isoforms of alpha-synuclein are more aggregation-prone and toxic. Mech Ageing Dev 2023; 209:111759. [PMID: 36464085 DOI: 10.1016/j.mad.2022.111759] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/14/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
The exon skipping of α-Synuclein (α-Syn), the main constituent of the abnormal protein aggregation in Lewy bodies of Parkinson's disease (PD), forms four isoforms. In contrast to the full length α-Syn (α-Syn 140), little is known about the splice isoforms' properties and functions. SUMOylation, a post-translational modification, regulates α-Syn function, aggregation, and degradation, but information about α-Syn isoforms and the effect of SUMOylation on them is unknown. Therefore, this study aims to characterize the SUMOylation of α-Syn isoforms and its impact on cell death and α-Syn aggregation. In a cellular model of PD induced by rotenone, cell toxicity, SUMOylation, and α-Syn aggregation with or without isoforms overexpression were evaluated. First, rotenone induced cell toxicity and α-Syn aggregation, with a significant reduction of SUMOylation and autophagy. Boosting SUMOylation prevented α-Syn aggregation, phosphorylation and recovery of autophagy. Moreover, α-Syn 140 and α-Syn 126 were SUMOylated while the other two isoforms, α-Syn 112 and 98 were not and their overexpression showed that were more toxic and induced more α-Syn aggregation. Rotenone increased their toxicity that was not affected by boosting SUMOylation. These results may indicate a role of SUMOylation in modulating α-Syn aggregation, inducing to understanding more about the behavior of α-Syn isoforms.
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Affiliation(s)
| | | | - Keivan Akhtari
- Department of Physics, University of Kurdistan, Sanandaj, Iran
| | - Ellen Gerhardt
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, 37073 Göttingen, Germany
| | | | - Tiago Fleming Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, 37073 Göttingen, Germany; Max Planck Institute for Natural Sciences, 37075 Göttingen, Germany; Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, NE2 4HH, United Kingdom; Scientific employee with an honorary contract at German Center for Neurodegenerative Diseases (DZNE), 37075 Göttingen, Germany
| | - Marco Feligioni
- EBRI Rita Levi-Montalcini Foundation, Rome 00161, Italy; Department of Neurorehabilitation Sciences, Casa di Cura del Policlinico, Milan 20144, Italy.
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16
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Luo P, Li L, Huang J, Mao D, Lou S, Ruan J, Chen J, Tang R, Shi Y, Zhou S, Yang H. The role of SUMOylation in the neurovascular dysfunction after acquired brain injury. Front Pharmacol 2023; 14:1125662. [PMID: 37033632 PMCID: PMC10073463 DOI: 10.3389/fphar.2023.1125662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/10/2023] [Indexed: 04/11/2023] Open
Abstract
Acquired brain injury (ABI) is the most common disease of the nervous system, involving complex pathological processes, which often leads to a series of nervous system disorders. The structural destruction and dysfunction of the Neurovascular Unit (NVU) are prominent features of ABI. Therefore, understanding the molecular mechanism underlying NVU destruction and its reconstruction is the key to the treatment of ABI. SUMOylation is a protein post-translational modification (PTM), which can degrade and stabilize the substrate dynamically, thus playing an important role in regulating protein expression and biological signal transduction. Understanding the regulatory mechanism of SUMOylation can clarify the molecular mechanism of the occurrence and development of neurovascular dysfunction after ABI and is expected to provide a theoretical basis for the development of potential treatment strategies. This article reviews the role of SUMOylation in vascular events related to ABI, including NVU dysfunction and vascular remodeling, and puts forward therapeutic prospects.
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Affiliation(s)
- Pengren Luo
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Lin Li
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Jiashang Huang
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Deqiang Mao
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Silong Lou
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Jian Ruan
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Jie Chen
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Ronghua Tang
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - You Shi
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Shuai Zhou
- Department of Neurosurgery, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
- *Correspondence: Shuai Zhou, ; Haifeng Yang,
| | - Haifeng Yang
- Department of Neuro-Oncology, Chongqing University Cancer Hospital, Chongqing, China
- *Correspondence: Shuai Zhou, ; Haifeng Yang,
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17
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SENP1 Protects Against Pressure Overload‐Induced Cardiac Remodeling and Dysfunction Via Inhibiting STAT3 Signaling. J Am Heart Assoc 2022; 11:e027004. [DOI: 10.1161/jaha.122.027004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Background
SENP1 (sentrin/small ubiquitin‐like modifier‐specific protease 1) has emerged as a significant modulator involved in the pathogenesis of a variety of human diseases, especially cancer. However, the regulatory roles of SENP1 in cardiovascular biology and diseases remain controversial. Our current study aims to clarify the function and regulation of SENP1 in pressure overload‐induced cardiac remodeling and dysfunction.
Methods and Results
We used a preclinical mouse model of transverse aortic constriction coupled with in vitro studies in neonatal rat cardiomyocytes to study the role of SENP1 in cardiac hypertrophy. Gene delivery system was used to knockdown or overexpress SENP1 in vivo. Here, we observed that SENP1 expression was significantly augmented in murine hearts following transverse aortic constriction as well as neonatal rat cardiomyocytes treated with phenylephrine or angiotensin II. Cardiac‐specific SENP1 knockdown markedly exacerbated transverse aortic constriction‐induced cardiac hypertrophy, systolic dysfunction, fibrotic response, and cellular apoptosis. In contrast, adenovirus‐mediated SENP1 overexpression in murine myocardium significantly attenuated cardiac remodeling and dysfunction following chronic pressure overload. Mechanistically, JAK2 (Janus kinase 2) and STAT3 (signal transducer and activator of transcription 3) acted as new interacting partners of SENP1 in this process. SENP1‐JAK2/STAT3 interaction suppressed STAT3 nuclear translocation and activation, ultimately inhibiting the transcription of prohypertrophic genes and the initiation of hypertrophic response. Furthermore, cardiomyocyte‐specific STAT3 knockout mice were generated to validate the underlying mechanisms, and the results showed that STAT3 ablation blunted the cardiac hypertrophy‐promoting effects of SENP1 deficiency. Additionally, pharmacological inhibition of SENP1 by Momordin Ic amplified cardiac remodeling post‐transverse aortic constriction.
Conclusions
Our study provided evidence that SENP1 protected against pressure overload‐induced cardiac remodeling and dysfunction via inhibiting STAT3 signaling. SENP1 supplementation might constitute a new promising treatment against cardiac hypertrophy. Notably, cardiovascular side effects should be seriously considered while applying systemic SENP1 blockers to suppress tumors.
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18
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SUMOylation targeting mitophagy in cardiovascular diseases. J Mol Med (Berl) 2022; 100:1511-1538. [PMID: 36163375 DOI: 10.1007/s00109-022-02258-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 12/14/2022]
Abstract
Small ubiquitin-like modifier (SUMO) plays a key regulatory role in cardiovascular diseases, such as cardiac hypertrophy, hypertension, atherosclerosis, and cardiac ischemia-reperfusion injury. As a multifunctional posttranslational modification molecule in eukaryotic cells, SUMOylation is essentially associated with the regulation of mitochondrial dynamics, especially mitophagy, which is involved in the progression and development of cardiovascular diseases. SUMOylation targeting mitochondrial-associated proteins is admittedly considered to regulate mitophagy activation and mitochondrial functions and dynamics, including mitochondrial fusion and fission. SUMOylation triggers mitochondrial fusion to promote mitochondrial dysfunction by modifying Fis1, OPA1, MFN1/2, and DRP1. The interaction between SUMO and DRP1 induces SUMOylation and inhibits lysosomal degradation of DRP1, which is further involved in the regulation of mitochondrial fission. Both SUMOylation and deSUMOylation contribute to the initiation and activation of mitophagy by regulating the conjugation of MFN1/2 SERCA2a, HIF1α, and PINK1. SUMOylation mediated by the SUMO molecule has attracted much attention due to its dual roles in the development of cardiovascular diseases. In this review, we systemically summarize the current understanding underlying the expression, regulation, and structure of SUMO molecules; explore the biochemical functions of SUMOylation in the initiation and activation of mitophagy; discuss the biological roles and mechanisms of SUMOylation in cardiovascular diseases; and further provide a wider explanation of SUMOylation and deSUMOylation research to provide a possible therapeutic strategy for cardiovascular diseases. Considering the precise functions and exact mechanisms of SUMOylation in mitochondrial dysfunction and mitophagy will provide evidence for future experimental research and may serve as an effective approach in the development of novel therapeutic strategies for cardiovascular diseases. Regulation and effect of SUMOylation in cardiovascular diseases via mitophagy. SUMOylation is involved in multiple cardiovascular diseases, including cardiac hypertrophy, hypertension, atherosclerosis, and cardiac ischemia-reperfusion injury. Since it is expressed in multiple cells associated with cardiovascular disease, SUMOylation can be regulated by numerous ligases, including the SENP family proteins PIAS1, PIASy/4, UBC9, and MAPL. SUMOylation regulates the activation and degradation of PINK1, SERCA2a, PPARγ, ERK5, and DRP1 to mediate mitochondrial dynamics, especially mitophagy activation. Mitophagy activation regulated by SUMOylation further promotes or inhibits ventricular diastolic dysfunction, perfusion injury, ventricular remodelling and ventricular noncompaction, which contribute to the development of cardiovascular diseases.
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19
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Role of Posttranslational Modifications of Proteins in Cardiovascular Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3137329. [PMID: 35855865 PMCID: PMC9288287 DOI: 10.1155/2022/3137329] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/23/2022] [Indexed: 01/03/2023]
Abstract
Cardiovascular disease (CVD) has become a leading cause of mortality and morbidity globally, making it an urgent concern. Although some studies have been performed on CVD, its molecular mechanism remains largely unknown for all types of CVD. However, recent in vivo and in vitro studies have successfully identified the important roles of posttranslational modifications (PTMs) in various diseases, including CVD. Protein modification, also known as PTMs, refers to the chemical modification of specific amino acid residues after protein biosynthesis, which is a key process that can influence the activity or expression level of proteins. Studies on PTMs have contributed directly to improving the therapeutic strategies for CVD. In this review, we examined recent progress on PTMs and highlighted their importance in both physiological and pathological conditions of the cardiovascular system. Overall, the findings of this review contribute to the understanding of PTMs and their potential roles in the treatment of CVD.
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20
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Vertegaal ACO. Signalling mechanisms and cellular functions of SUMO. Nat Rev Mol Cell Biol 2022; 23:715-731. [PMID: 35750927 DOI: 10.1038/s41580-022-00500-y] [Citation(s) in RCA: 115] [Impact Index Per Article: 57.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2022] [Indexed: 12/22/2022]
Abstract
Sumoylation is an essential post-translational modification that is catalysed by a small number of modifying enzymes but regulates thousands of target proteins in a dynamic manner. Small ubiquitin-like modifiers (SUMOs) can be attached to target proteins as one or more monomers or in the form of polymers of different types. Non-covalent readers recognize SUMO-modified proteins via SUMO interaction motifs. SUMO simultaneously modifies groups of functionally related proteins to regulate predominantly nuclear processes, including gene expression, the DNA damage response, RNA processing, cell cycle progression and proteostasis. Recent progress has increased our understanding of the cellular and pathophysiological roles of SUMO modifications, extending their functions to the regulation of immunity, pluripotency and nuclear body assembly in response to oxidative stress, which partly occurs through the recently characterized mechanism of liquid-liquid phase separation. Such progress in understanding the roles and regulation of sumoylation opens new avenues for the targeting of SUMO to treat disease, and indeed the first drug blocking sumoylation is currently under investigation in clinical trials as a possible anticancer agent.
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Affiliation(s)
- Alfred C O Vertegaal
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands.
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21
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Li A, Gao M, Liu B, Qin Y, Chen L, Liu H, Wu H, Gong G. Mitochondrial autophagy: molecular mechanisms and implications for cardiovascular disease. Cell Death Dis 2022; 13:444. [PMID: 35534453 PMCID: PMC9085840 DOI: 10.1038/s41419-022-04906-6] [Citation(s) in RCA: 104] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/27/2022] [Accepted: 05/03/2022] [Indexed: 12/13/2022]
Abstract
Mitochondria are highly dynamic organelles that participate in ATP generation and involve calcium homeostasis, oxidative stress response, and apoptosis. Dysfunctional or damaged mitochondria could cause serious consequences even lead to cell death. Therefore, maintaining the homeostasis of mitochondria is critical for cellular functions. Mitophagy is a process of selectively degrading damaged mitochondria under mitochondrial toxicity conditions, which plays an essential role in mitochondrial quality control. The abnormal mitophagy that aggravates mitochondrial dysfunction is closely related to the pathogenesis of many diseases. As the myocardium is a highly oxidative metabolic tissue, mitochondria play a central role in maintaining optimal performance of the heart. Dysfunctional mitochondria accumulation is involved in the pathophysiology of cardiovascular diseases, such as myocardial infarction, cardiomyopathy and heart failure. This review discusses the most recent progress on mitophagy and its role in cardiovascular disease.
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Affiliation(s)
- Anqi Li
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Meng Gao
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Bilin Liu
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Yuan Qin
- Department of Pharmacy, Shanghai East Hospital, Tongji University, Shanghai, 200120, China
| | - Lei Chen
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Hanyu Liu
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Huayan Wu
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Guohua Gong
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China.
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22
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Ubiquitin and Ubiquitin-like Proteins in Cancer, Neurodegenerative Disorders, and Heart Diseases. Int J Mol Sci 2022; 23:ijms23095053. [PMID: 35563444 PMCID: PMC9105348 DOI: 10.3390/ijms23095053] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 01/14/2023] Open
Abstract
Post-translational modification (PTM) is an essential mechanism for enhancing the functional diversity of proteins and adjusting their signaling networks. The reversible conjugation of ubiquitin (Ub) and ubiquitin-like proteins (Ubls) to cellular proteins is among the most prevalent PTM, which modulates various cellular and physiological processes by altering the activity, stability, localization, trafficking, or interaction networks of its target molecules. The Ub/Ubl modification is tightly regulated as a multi-step enzymatic process by enzymes specific to this family. There is growing evidence that the dysregulation of Ub/Ubl modifications is associated with various diseases, providing new targets for drug development. In this review, we summarize the recent progress in understanding the roles and therapeutic targets of the Ub and Ubl systems in the onset and progression of human diseases, including cancer, neurodegenerative disorders, and heart diseases.
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23
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Tam E, Reno C, Nguyen K, Cho S, Sweeney G. Importance of Autophagy in Mediating Cellular Responses to Iron Overload in Cardiomyocytes. Rev Cardiovasc Med 2022; 23:167. [PMID: 39077594 PMCID: PMC11273664 DOI: 10.31083/j.rcm2305167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/07/2022] [Accepted: 03/21/2022] [Indexed: 07/31/2024] Open
Abstract
Both iron overload and deficiency can promote development of cardiomyopathy. Advances in our knowledge from recent research have indicated numerous potential cellular mechanisms. Regulation of myocardial autophagy by iron is of particular interest and will be reviewed here. Autophagy is already well established to play a significant role in regulating the development of heart failure. This review will focus on regulation of autophagy by iron, crosstalk between autophagy and other cellular process which have also already been implicated in heart failure (oxidative stress, mitochondrial dysfunction, endoplasmic reticulum stress, ferroptosis) and the therapeutic potential of targeting these interactions.
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Affiliation(s)
- Eddie Tam
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Chloe Reno
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Khang Nguyen
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Sungji Cho
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Gary Sweeney
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
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24
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Ramírez-Jarquín UN, Sharma M, Zhou W, Shahani N, Subramaniam S. Deletion of SUMO1 attenuates behavioral and anatomical deficits by regulating autophagic activities in Huntington disease. Proc Natl Acad Sci U S A 2022; 119:e2107187119. [PMID: 35086928 PMCID: PMC8812691 DOI: 10.1073/pnas.2107187119] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 12/13/2021] [Indexed: 01/18/2023] Open
Abstract
The CAG expansion of huntingtin (mHTT) associated with Huntington disease (HD) is a ubiquitously expressed gene, yet it prominently damages the striatum and cortex, followed by widespread peripheral defects as the disease progresses. However, the underlying mechanisms of neuronal vulnerability are unclear. Previous studies have shown that SUMO1 (small ubiquitin-like modifier-1) modification of mHtt promotes cellular toxicity, but the in vivo role and functions of SUMO1 in HD pathogenesis are unclear. Here, we report that SUMO1 deletion in Q175DN HD-het knockin mice (HD mice) prevented age-dependent HD-like motor and neurological impairments and suppressed the striatal atrophy and inflammatory response. SUMO1 deletion caused a drastic reduction in soluble mHtt levels and nuclear and extracellular mHtt inclusions while increasing cytoplasmic mHtt inclusions in the striatum of HD mice. SUMO1 deletion promoted autophagic activity, characterized by augmented interactions between mHtt inclusions and a lysosomal marker (LAMP1), increased LC3B- and LAMP1 interaction, and decreased interaction of sequestosome-1 (p62) and LAMP1 in DARPP-32-positive medium spiny neurons in HD mice. Depletion of SUMO1 in an HD cell model also diminished the mHtt levels and enhanced autophagy flux. In addition, the SUMOylation inhibitor ginkgolic acid strongly enhanced autophagy and diminished mHTT levels in human HD fibroblasts. These results indicate that SUMO is a critical therapeutic target in HD and that blocking SUMO may ameliorate HD pathogenesis by regulating autophagy activities.
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Affiliation(s)
| | - Manish Sharma
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL 33458
| | - Wuyue Zhou
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL 33458
| | - Neelam Shahani
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL 33458
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Du C, Chen X, Su Q, Lu W, Wang Q, Yuan H, Zhang Z, Wang X, Wu H, Qi Y. The Function of SUMOylation and Its Critical Roles in Cardiovascular Diseases and Potential Clinical Implications. Int J Mol Sci 2021; 22:10618. [PMID: 34638970 PMCID: PMC8509021 DOI: 10.3390/ijms221910618] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 01/10/2023] Open
Abstract
Cardiovascular disease (CVD) is a common disease caused by many factors, including atherosclerosis, congenital heart disease, heart failure, and ischemic cardiomyopathy. CVD has been regarded as one of the most common diseases and has a severe impact on the life quality of patients. The main features of CVD include high morbidity and mortality, which seriously threaten human health. SUMO proteins covalently conjugate lysine residues with a large number of substrate proteins, and SUMOylation regulates the function of target proteins and participates in cellular activities. Under certain pathological conditions, SUMOylation of proteins related to cardiovascular development and function are greatly changed. Numerous studies have suggested that SUMOylation of substrates plays critical roles in normal cardiovascular development and function. We reviewed the research progress of SUMOylation in cardiovascular development and function, and the regulation of protein SUMOylation may be applied as a potential therapeutic strategy for CVD treatment.
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Affiliation(s)
- Congcong Du
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
| | - Xu Chen
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
| | - Qi Su
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
| | - Wenbin Lu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
| | - Qiqi Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
| | - Hong Yuan
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
| | - Zhenzhen Zhang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
| | - Xiaotong Wang
- School of Agriculture, Ludong University, Yantai 246011, China;
| | - Hongmei Wu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
| | - Yitao Qi
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (C.D.); (X.C.); (Q.S.); (W.L.); (Q.W.); (H.Y.); (Z.Z.)
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Abstract
SUMOylation dynamically conjugates SUMO molecules to the lysine residue of a substrate protein, which depends on the physiological state of the cell and the attached SUMO isoforms. A prominent role of SUMOylation in molecular pathways is to govern the cellular death process. Herein, we summarize the association between SUMOylation modification events and four types of cellular death processes: apoptosis, autophagy, senescence and pyroptosis. SUMOylation positively or negatively regulates a certain cellular death pattern depending on specific conditions including the attached SUMO isoforms, disease types, substrate proteins and cell context. Moreover, we also discuss the possible role of SUMOylation in ferroptosis and propose a potential role of the SUMOylated GPX4 in the regulation of ferroptosis. Mapping the exact SUMOylation network with cellular death contributes to develop novel SUMOylation-targeting disease therapeutic strategies.
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Affiliation(s)
- Zenghua Sheng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Jing Zhu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Ya-Nan Deng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Shan Gao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Shufang Liang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
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Wieczorek E, Ożyhar A. Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases. Cells 2021; 10:1768. [PMID: 34359938 PMCID: PMC8307983 DOI: 10.3390/cells10071768] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/29/2021] [Accepted: 07/09/2021] [Indexed: 01/10/2023] Open
Abstract
Transthyretin (TTR) is a tetrameric protein transporting hormones in the plasma and brain, which has many other activities that have not been fully acknowledged. TTR is a positive indicator of nutrition status and is negatively correlated with inflammation. TTR is a neuroprotective and oxidative-stress-suppressing factor. The TTR structure is destabilized by mutations, oxidative modifications, aging, proteolysis, and metal cations, including Ca2+. Destabilized TTR molecules form amyloid deposits, resulting in senile and familial amyloidopathies. This review links structural stability of TTR with the environmental factors, particularly oxidative stress and Ca2+, and the processes involved in the pathogenesis of TTR-related diseases. The roles of TTR in biomineralization, calcification, and osteoarticular and cardiovascular diseases are broadly discussed. The association of TTR-related diseases and vascular and ligament tissue calcification with TTR levels and TTR structure is presented. It is indicated that unaggregated TTR and TTR amyloid are bound by vicious cycles, and that TTR may have an as yet undetermined role(s) at the crossroads of calcification, blood coagulation, and immune response.
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Affiliation(s)
- Elżbieta Wieczorek
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland;
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28
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Ubiquitination-activating enzymes UBE1 and UBA6 regulate ubiquitination and expression of cardiac sodium channel Nav1.5. Biochem J 2020; 477:1683-1700. [PMID: 32315024 DOI: 10.1042/bcj20200138] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/18/2020] [Accepted: 04/21/2020] [Indexed: 12/26/2022]
Abstract
Cardiac sodium channel Nav1.5 is associated with cardiac arrhythmias and heart failure. Protein ubiquitination is catalyzed by an E1-E2-E3 cascade of enzymes. However, the E1 enzyme catalyzing Nav1.5 ubiquitination is unknown. Here, we show that UBE1 and UBA6 are two E1 enzymes regulating Nav1.5 ubiquitination and expression. Western blot analysis and patch-clamping recordings showed that overexpression of UBE1 or UBA6 increased the ubiquitination of Nav1.5 and significantly reduced Nav1.5 expression and sodium current density, and knockdown of UBE1 or UBA6 expression significantly increased Nav1.5 expression and sodium current density in HEK293/Nav1.5 cells. Similar results were obtained in neonatal cardiomyocytes. Bioinformatic analysis predicted two ubiquitination sites at K590 and K591. Mutations of K590 and K591 to K590A and K591A abolished the effects of overexpression or knockdown of UBE1 or UBA6 on Nav1.5 expression and sodium current density. Western blot analysis showed that the effects of UBE1 or UBA6 overexpression on the ubiquitination and expression of Nav1.5 were abolished by knockdown of UBC9, a putative E2 enzyme reported for Nav1.5 ubiquitination by us. Interestingly, real-time RT-PCR analysis showed that the expression level of UBE1, but not UBA6, was significantly up-regulated in ventricular tissues from heart failure patients. These data establish UBE1 and UBA6 as the E1 enzymes involved in Nav1.5 ubiquitination, and suggest that UBE1 and UBA6 regulate ubiquitination of Nav1.5 through UBC9. Our study is the first to reveal the regulatory role of the UBE1 or UBA6 E1 enzyme in the ubiquitination of an ion channel and links UBE1 up-regulation to heart failure.
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Alam S, Abdullah CS, Aishwarya R, Morshed M, Nitu SS, Miriyala S, Panchatcharam M, Kevil CG, Orr AW, Bhuiyan MS. Dysfunctional Mitochondrial Dynamic and Oxidative Phosphorylation Precedes Cardiac Dysfunction in R120G-αB-Crystallin-Induced Desmin-Related Cardiomyopathy. J Am Heart Assoc 2020; 9:e017195. [PMID: 33208022 PMCID: PMC7763772 DOI: 10.1161/jaha.120.017195] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 10/05/2020] [Indexed: 02/06/2023]
Abstract
Background The mutated α-B-Crystallin (CryABR120G) mouse model of desmin-related myopathy (DRM) shows an age-dependent onset of pathologic cardiac remodeling and progression of heart failure. CryABR120G expression in cardiomyocytes affects the mitochondrial spatial organization within the myofibrils, but the molecular perturbation within the mitochondria in the relation of the overall course of the proteotoxic disease remains unclear. Methods and Results CryABR120G mice show an accumulation of electron-dense aggregates and myofibrillar degeneration associated with the development of cardiac dysfunction. Though extensive studies demonstrated that these altered ultrastructural changes cause cardiac contractility impairment, the molecular mechanism of cardiomyocyte death remains elusive. Here, we explore early pathological processes within the mitochondria contributing to the contractile dysfunction and determine the pathogenic basis for the heart failure observed in the CryABR120G mice. In the present study, we report that the CryABR120G mice transgenic hearts undergo altered mitochondrial dynamics associated with increased level of dynamin-related protein 1 and decreased level of optic atrophy type 1 as well as mitofusin 1 over the disease process. In association with these changes, an altered level of the components of mitochondrial oxidative phosphorylation and pyruvate dehydrogenase complex regulatory proteins occurs before the manifestation of pathologic adverse remodeling in the CryABR120G hearts. Mitochondria isolated from CryABR120G transgenic hearts without visible pathology show decreased electron transport chain complex activities and mitochondrial respiration. Taken together, we demonstrated the involvement of mitochondria in the pathologic remodeling and progression of DRM-associated cellular dysfunction. Conclusions Mitochondrial dysfunction in the form of altered mitochondrial dynamics, oxidative phosphorylation and pyruvate dehydrogenase complex proteins level, abnormal electron transport chain complex activities, and mitochondrial respiration are evident on the CryABR120G hearts before the onset of detectable pathologies and development of cardiac contractile dysfunction.
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Affiliation(s)
- Shafiul Alam
- Department of Pathology and Translational PathobiologyLouisiana State University Health Sciences CenterShreveportLA
| | - Chowdhury S. Abdullah
- Department of Pathology and Translational PathobiologyLouisiana State University Health Sciences CenterShreveportLA
| | - Richa Aishwarya
- Department of Molecular and Cellular PhysiologyLouisiana State University Health Sciences CenterShreveportLA
| | - Mahboob Morshed
- Department of Pathology and Translational PathobiologyLouisiana State University Health Sciences CenterShreveportLA
| | - Sadia S. Nitu
- Department of Pathology and Translational PathobiologyLouisiana State University Health Sciences CenterShreveportLA
| | - Sumitra Miriyala
- Department of Cellular Biology and AnatomyLouisiana State University Health Sciences CenterShreveportLA
| | - Manikandan Panchatcharam
- Department of Cellular Biology and AnatomyLouisiana State University Health Sciences CenterShreveportLA
| | - Christopher G. Kevil
- Department of Pathology and Translational PathobiologyLouisiana State University Health Sciences CenterShreveportLA
- Department of Molecular and Cellular PhysiologyLouisiana State University Health Sciences CenterShreveportLA
- Department of Cellular Biology and AnatomyLouisiana State University Health Sciences CenterShreveportLA
| | - A. Wayne Orr
- Department of Pathology and Translational PathobiologyLouisiana State University Health Sciences CenterShreveportLA
- Department of Molecular and Cellular PhysiologyLouisiana State University Health Sciences CenterShreveportLA
- Department of Cellular Biology and AnatomyLouisiana State University Health Sciences CenterShreveportLA
| | - Md. Shenuarin Bhuiyan
- Department of Pathology and Translational PathobiologyLouisiana State University Health Sciences CenterShreveportLA
- Department of Molecular and Cellular PhysiologyLouisiana State University Health Sciences CenterShreveportLA
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30
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Xiao Q, Chen XH, Jiang RC, Chen SY, Chen KF, Zhu X, Zhang XL, Huang JJ, Qin Y, Zhang GP, Yi Q, Luo JD. Ubc9 Attenuates Myocardial Ischemic Injury Through Accelerating Autophagic Flux. Front Pharmacol 2020; 11:561306. [PMID: 33041800 PMCID: PMC7522513 DOI: 10.3389/fphar.2020.561306] [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: 05/12/2020] [Accepted: 08/14/2020] [Indexed: 01/09/2023] Open
Abstract
Aims SUMOylation is a post-translational modification that plays a crucial role in the cellular stress response. We aimed to demonstrate whether and how the SUMO E2 conjugation enzyme Ubc9 affects acute myocardial ischemic (MI) injury. Methods and Results Adenovirus expressing Ubc9 was administrated by multipoint injection in the border zone of heart immediately after MI in C57BL/6 mice. Neonatal rat cardiomyocytes (NRCMs) were also infected, followed by oxygen and glucose deprivation (OGD). In vivo, Ubc9 adenovirus-injected mice showed decreased cardiomyocyte apoptosis, reduced myocardial fibrosis, and improved cardiac function post-MI. In vitro, overexpression of Ubc9 decreased cardiomyocyte apoptosis, whereas silence of Ubc9 showed the opposite results during OGD. We next found that Ubc9 significantly decreased the accumulation of autophagy marker p62/SQSTM, while the LC3 II level hardly changed. When in the presence of bafilomycin A1 (BAF), the Ubc9 adenovirus plus OGD group presented a higher level of LC3 II and GFP-LC3 puncta than the OGD group. Moreover, the Ubc9 adenovirus group displayed increased numbers of yellow plus red puncta and a rising ratio of red to yellow puncta on the mRFP-GFP-LC3 fluorescence assay, indicating that Ubc9 induces an acceleration of autophagic flux from activation to degradation. Mechanistically, Ubc9 upregulated SUMOylation of the core proteins Vps34 and Beclin1 in the class III phosphatidylinositol 3-kinase (PI3K-III) complexes and boosted the protein assembly of PI3K-III complex I and II under OGD. Moreover, the colocalization of Vps34 with autophagosome marker LC3 or lysosome marker Lamp1 was augmented after Ubc9 overexpression, indicating a positive effect of Ubc9-boosted protein assembly of the PI3K-III complexes on autophagic flux enhancement. Conclusions We uncovered a novel role of Ubc9 in protecting cardiomyocytes from ischemic stress via Ubc9-induced SUMOylation, leading to increased PI3K-III complex assembly and autophagy-positioning. These findings may indicate a potential therapeutic target, Ubc9, for treatment of myocardial ischemia.
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Affiliation(s)
- Qing Xiao
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Pharmacology, Guangzhou Medical University, Guangzhou, China.,Guangzhou Institute of Cardiovascular Disease, Guangzhou Key Laboratory of Cardiovascular Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiu-Hui Chen
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, China
| | - Ru-Chao Jiang
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, China
| | - Sheng-Ying Chen
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, China
| | - Kai-Feng Chen
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, China
| | - Xiang Zhu
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, China
| | - Xiao-Ling Zhang
- Department of Neonatology, Maternal and Children Hospital of Guangdong Province, Guangzhou, China
| | - Jun-Jun Huang
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yuan Qin
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Pharmacology, Guangzhou Medical University, Guangzhou, China
| | - Gui-Ping Zhang
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Pharmacology, Guangzhou Medical University, Guangzhou, China
| | - Quan Yi
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Pharmacology, Guangzhou Medical University, Guangzhou, China
| | - Jian-Dong Luo
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Pharmacology, Guangzhou Medical University, Guangzhou, China.,Guangzhou Institute of Cardiovascular Disease, Guangzhou Key Laboratory of Cardiovascular Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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Li Y, Liu R, Wu J, Li X. Self-eating: friend or foe? The emerging role of autophagy in fibrotic diseases. Am J Cancer Res 2020; 10:7993-8017. [PMID: 32724454 PMCID: PMC7381749 DOI: 10.7150/thno.47826] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 06/16/2020] [Indexed: 01/18/2023] Open
Abstract
Fibrosis occurs in most human organs including the liver, lung, heart and kidney, and is crucial for the progression of most chronic diseases. As an indispensable catabolic process for intracellular quality control and homeostasis, autophagy occurs in most mammalian cells and is implicated in many biological processes including fibrogenesis. Although advances have been made in understanding autophagy process, the potential role of autophagy in fibrotic diseases remains controversial and has recently attracted a great deal of attention. In the current review, we summarize the commonalities of autophagy affecting different types of fibrosis in different organs, including the liver, lung, heart, and kidney as well as in cystic fibrosis, systematically outline the contradictory results and highlight the distinct role of autophagy during the various stages of fibrosis. In summary, the exact role autophagy plays in fibrogenesis depends on specific cell types and different stimuli, and identifying and evaluating the pathogenic contribution of autophagy in fibrogenesis will promote the discovery of novel therapeutic strategies for the clinical management of these fibrotic diseases.
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32
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Yang H, Gao S, Chen J, Lou W. UBE2I promotes metastasis and correlates with poor prognosis in hepatocellular carcinoma. Cancer Cell Int 2020; 20:234. [PMID: 32536822 PMCID: PMC7291483 DOI: 10.1186/s12935-020-01311-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 05/30/2020] [Indexed: 12/13/2022] Open
Abstract
Background A comprehensive investigation of ubiquitin-conjugating enzyme E2I (UBE2I) in cancer is still insufficiency. In this study, we aimed to analyze its role and mechanism in cancer by combination of bioinformatic analysis and experimental validation. Methods The expression profile of UBE2I in human cancers were obtained using GEPIA. Kaplan–Meier plotter was used to assess the prognostic values of UBE2I in diverse types of cancer. ROC curve analysis was employed to determine the diagnostic role of UBE2I in hepatocellular carcinoma (HCC). The expression differences based on various clinicopathological features was evaluated by UALCAN. Wound healing assay and transwell invasion assay were used to detected the effects of UBE2I on migration and invasion of HCC cells, respectively. The miRNA regulatory mechanism of UBE2I was successively investigated by binding prediction, expression analysis, survival analysis and dual-luciferase reporter assay. The correlation of UBE2I mRNA expression and UBE2I promoter methylation level was assessed using cBioPortal. STRING was finally introduced to perform co-expression analysis and enrichment analysis for UBE2I. Results UBE2I was upregulated in HCC, correlated with cancer progression and poor prognosis of HCC. We also found a significant diagnostic value of UBE2I in HCC. Functional experiments revealed that knockdown of UBE2I significantly inhibited HCC migration and invasion. Further research on mechanism suggested that loss of inhibition of hsa-miR-195-3p and dysregulation of UBE2I promoter methylation might account for UBE2I overexpression in HCC. Analysis of UBE2I-invovled regulatory network identified six key genes (NSMCE2, SAE1, UBA2, RANGAP1, SUMO1 and SUMO2) whose expression linked to poor prognosis in HCC. Conclusions In conclusion, UBE2I may be a promising therapeutic target and biomarker in cancer, especially HCC.
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Affiliation(s)
- Hao Yang
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical Hospital, Hangzhou, 310014 Zhejiang China
| | - Shan Gao
- Department of Anus & Intestine Surgery, Zhejiang Provincial People's Hospital, Hangzhou, 310014 Zhejiang China
| | - Jing Chen
- Department of Oncology, First Affiliated Hospital of Jiaxing University, Jiaxing, 314000 Zhejiang China
| | - Weiyang Lou
- Department of Breast Surgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang China
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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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34
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Xu N, Gulick J, Osinska H, Yu Y, McLendon PM, Shay-Winkler K, Robbins J, Yutzey KE. Ube2v1 Positively Regulates Protein Aggregation by Modulating Ubiquitin Proteasome System Performance Partially Through K63 Ubiquitination. Circ Res 2020; 126:907-922. [PMID: 32081062 DOI: 10.1161/circresaha.119.316444] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
RATIONALE Compromised protein quality control can result in proteotoxic intracellular protein aggregates in the heart, leading to cardiac disease and heart failure. Defining the participants and understanding the underlying mechanisms of cardiac protein aggregation is critical for seeking therapeutic targets. We identified Ube2v1 (ubiquitin-conjugating enzyme E2 variant 1) in a genome-wide screen designed to identify novel effectors of the aggregation process. However, its role in the cardiomyocyte is undefined. OBJECTIVE To assess whether Ube2v1 regulates the protein aggregation caused by cardiomyocyte expression of a mutant αB crystallin (CryABR120G) and identify how Ube2v1 exerts its effect. METHODS AND RESULTS Neonatal rat ventricular cardiomyocytes were infected with adenoviruses expressing either wild-type CryAB (CryABWT) or CryABR120G. Subsequently, loss- and gain-of-function experiments were performed. Ube2v1 knockdown decreased aggregate accumulation caused by CryABR120G expression. Overexpressing Ube2v1 promoted aggregate formation in CryABWT and CryABR120G-expressing neonatal rat ventricular cardiomyocytes. Ubiquitin proteasome system performance was analyzed using a ubiquitin proteasome system reporter protein. Ube2v1 knockdown improved ubiquitin proteasome system performance and promoted the degradation of insoluble ubiquitinated proteins in CryABR120G cardiomyocytes but did not alter autophagic flux. Lys (K) 63-linked ubiquitination modulated by Ube2v1 expression enhanced protein aggregation and contributed to Ube2v1's function in regulating protein aggregate formation. Knocking out Ube2v1 exclusively in cardiomyocytes by using AAV9 (adeno-associated virus 9) to deliver multiplexed single guide RNAs against Ube2v1 in cardiac-specific Cas9 mice alleviated CryABR120G-induced protein aggregation, improved cardiac function, and prolonged lifespan in vivo. CONCLUSIONS Ube2v1 plays an important role in protein aggregate formation, partially by enhancing K63 ubiquitination during a proteotoxic stimulus. Inhibition of Ube2v1 decreases CryABR120G-induced aggregate formation through enhanced ubiquitin proteasome system performance rather than autophagy and may provide a novel therapeutic target to treat cardiac proteinopathies.
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Affiliation(s)
- Na Xu
- From the Division of Molecular Cardiovascular Biology (N.X., J.G., H.O., P.M.M., K.S.-W., J.R., K.E.Y.), Department of Pediatrics, Cincinnati Children's Medical Center, OH
| | - James Gulick
- From the Division of Molecular Cardiovascular Biology (N.X., J.G., H.O., P.M.M., K.S.-W., J.R., K.E.Y.), Department of Pediatrics, Cincinnati Children's Medical Center, OH
| | - Hanna Osinska
- From the Division of Molecular Cardiovascular Biology (N.X., J.G., H.O., P.M.M., K.S.-W., J.R., K.E.Y.), Department of Pediatrics, Cincinnati Children's Medical Center, OH
| | - Yang Yu
- Division of Developmental Biology (Y.Y.), Department of Pediatrics, Cincinnati Children's Medical Center, OH
| | - Patrick M McLendon
- From the Division of Molecular Cardiovascular Biology (N.X., J.G., H.O., P.M.M., K.S.-W., J.R., K.E.Y.), Department of Pediatrics, Cincinnati Children's Medical Center, OH
| | - Kritton Shay-Winkler
- From the Division of Molecular Cardiovascular Biology (N.X., J.G., H.O., P.M.M., K.S.-W., J.R., K.E.Y.), Department of Pediatrics, Cincinnati Children's Medical Center, OH
| | - Jeffrey Robbins
- From the Division of Molecular Cardiovascular Biology (N.X., J.G., H.O., P.M.M., K.S.-W., J.R., K.E.Y.), Department of Pediatrics, Cincinnati Children's Medical Center, OH
| | - Katherine E Yutzey
- From the Division of Molecular Cardiovascular Biology (N.X., J.G., H.O., P.M.M., K.S.-W., J.R., K.E.Y.), Department of Pediatrics, Cincinnati Children's Medical Center, OH
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35
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Gao J, Shao K, Chen X, Li Z, Liu Z, Yu Z, Aung LHH, Wang Y, Li P. The involvement of post-translational modifications in cardiovascular pathologies: Focus on SUMOylation, neddylation, succinylation, and prenylation. J Mol Cell Cardiol 2020; 138:49-58. [DOI: 10.1016/j.yjmcc.2019.11.146] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/01/2019] [Accepted: 11/13/2019] [Indexed: 12/12/2022]
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36
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Schaeuble D, Packard AEB, McKlveen JM, Morano R, Fourman S, Smith BL, Scheimann JR, Packard BA, Wilson SP, James J, Hui DY, Ulrich‐Lai YM, Herman JP, Myers B. Prefrontal Cortex Regulates Chronic Stress-Induced Cardiovascular Susceptibility. J Am Heart Assoc 2019; 8:e014451. [PMID: 31838941 PMCID: PMC6951062 DOI: 10.1161/jaha.119.014451] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 11/05/2019] [Indexed: 02/07/2023]
Abstract
Background The medial prefrontal cortex is necessary for appropriate appraisal of stressful information, as well as coordinating visceral and behavioral processes. However, prolonged stress impairs medial prefrontal cortex function and prefrontal-dependent behaviors. Additionally, chronic stress induces sympathetic predominance, contributing to health detriments associated with autonomic imbalance. Previous studies identified a subregion of rodent prefrontal cortex, infralimbic cortex (IL), as a key regulator of neuroendocrine-autonomic integration after chronic stress, suggesting that IL output may prevent chronic stress-induced autonomic imbalance. In the current study, we tested the hypothesis that the IL regulates hemodynamic, vascular, and cardiac responses to chronic stress. Methods and Results A viral-packaged small interfering RNA construct was used to knockdown vesicular glutamate transporter 1 (vGluT1) and reduce glutamate packaging and release from IL projection neurons. Male rats were injected with a vGluT1 small interfering RNA-expressing construct or GFP (green fluorescent protein) control into the IL and then remained as unstressed controls or were exposed to chronic variable stress. IL vGluT1 knockdown increased heart rate and mean arterial pressure reactivity, while chronic variable stress increased chronic mean arterial pressure only in small interfering RNA-treated rats. In another cohort, chronic variable stress and vGluT1 knockdown interacted to impair both endothelial-dependent and endothelial-independent vasoreactivity ex vivo. Furthermore, vGluT1 knockdown and chronic variable stress increased histological markers of fibrosis and hypertrophy. Conclusions Knockdown of glutamate release from IL projection neurons indicates that these cells are necessary to prevent the enhanced physiological responses to stress that promote susceptibility to cardiovascular pathophysiology. Ultimately, these findings provide evidence for a neurobiological mechanism mediating the relationship between stress and poor cardiovascular health outcomes.
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Affiliation(s)
| | | | - Jessica M. McKlveen
- National Institutes of HealthNational Center for Complimentary and Integrative HealthBethesdaMD
| | - Rachel Morano
- Pharmacology and Systems PhysiologyUniversity of CincinnatiOH
| | - Sarah Fourman
- Pathology and Laboratory MedicineUniversity of CincinnatiOH
| | | | | | | | - Steven P. Wilson
- Pharmacology, Physiology, and NeuroscienceUniversity of South CarolinaColumbiaSC
| | - Jeanne James
- Division of CardiologyDepartment of PediatricsMedical College of WisconsinMilwaukeeWI
| | - David Y. Hui
- Pathology and Laboratory MedicineUniversity of CincinnatiOH
| | | | - James P. Herman
- Pharmacology and Systems PhysiologyUniversity of CincinnatiOH
| | - Brent Myers
- Biomedical SciencesColorado State UniversityFort CollinsCO
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Bhandary B, Meng Q, James J, Osinska H, Gulick J, Valiente-Alandi I, Sargent MA, Bhuiyan MS, Blaxall BC, Molkentin JD, Robbins J. Cardiac Fibrosis in Proteotoxic Cardiac Disease is Dependent Upon Myofibroblast TGF -β Signaling. J Am Heart Assoc 2019; 7:e010013. [PMID: 30371263 PMCID: PMC6474972 DOI: 10.1161/jaha.118.010013] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Background Transforming growth factor beta (TGF‐β) is an important cytokine in mediating the cardiac fibrosis that often accompanies pathogenic cardiac remodeling. Cardiomyocyte‐specific expression of a mutant αB‐crystallin (CryABR120G), which causes human desmin‐related cardiomyopathy, results in significant cardiac fibrosis. During onset of fibrosis, fibroblasts are activated to the so‐called myofibroblast state and TGF‐β binding mediates an essential signaling pathway underlying this process. Here, we test the hypothesis that fibroblast‐based TGF‐β signaling can result in significant cardiac fibrosis in a disease model of cardiac proteotoxicity that has an exclusive cardiomyocyte‐based etiology. Methods and Results Against the background of cardiomyocyte‐restricted expression of CryABR120G, we have partially ablated TGF‐β signaling in cardiac myofibroblasts to observe whether cardiac fibrosis is reduced despite the ongoing pathogenic stimulus of CryABR120G production. Transgenic CryABR120G mice were crossed with mice containing a floxed allele of TGF‐β receptor 2 (Tgfbr2f/f). The double transgenic animals were subsequently crossed to another transgenic line in which Cre expression was driven from the periostin locus (Postn) so that Tgfbr2 would be ablated with myofibroblast conversion. Structural and functional assays were then used to determine whether general fibrosis was affected and cardiac function rescued in CryABR120G mice lacking Tgfbr2 in the myofibroblasts. Ablation of myofibroblast specific TGF‐β signaling led to decreased morbidity in a proteotoxic disease resulting from cardiomyocyte autonomous expression of CryABR120G. Cardiac fibrosis was decreased and hypertrophy was also significantly attenuated, with a significant improvement in survival probability over time, even though the primary proteotoxic insult continued. Conclusions Myofibroblast‐targeted knockdown of Tgfbr2 signaling resulted in reduced fibrosis and improved cardiac function, leading to improved probability of survival.
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Affiliation(s)
- Bidur Bhandary
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
| | - Qinghang Meng
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
| | - Jeanne James
- 2 Division of Pediatric Cardiology Medical College of Wisconsin Milwaukee WI
| | - Hanna Osinska
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
| | - James Gulick
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
| | - Iñigo Valiente-Alandi
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
| | - Michelle A Sargent
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
| | - Md Shenuarin Bhuiyan
- 3 Department of Pathology and Translational Pathobiology Louisiana State University Health Sciences Center Shreveport LA
| | - Burns C Blaxall
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
| | - Jeffery D Molkentin
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
| | - Jeffrey Robbins
- 1 Division of Molecular Cardiovascular Biology Cincinnati Children's Hospital Cincinnati OH
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38
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Kumar R, Sabapathy K. RNF4—A Paradigm for SUMOylation‐Mediated Ubiquitination. Proteomics 2019; 19:e1900185. [DOI: 10.1002/pmic.201900185] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/13/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Ramesh Kumar
- Cancer & Stem Cell Biology Program Duke–NUS Medical School 8 College Road Singapore 169857 Singapore
| | - Kanaga Sabapathy
- Cancer & Stem Cell Biology Program Duke–NUS Medical School 8 College Road Singapore 169857 Singapore
- Laboratory of Molecular Carcinogenesis Division of Cellular & Molecular Research Humphrey Oei Institute of Cancer Research National Cancer Centre Singapore 11 Hospital Drive Singapore 169610 Singapore
- Department of Biochemistry National University of Singapore 8 Medical Drive Singapore 117597 Singapore
- Institute of Molecular and Cellular Biology 61 Biopolis Drive Singapore 138673 Singapore
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Liu K, Guo C, Lao Y, Yang J, Chen F, Zhao Y, Yang Y, Yang J, Yi J. A fine-tuning mechanism underlying self-control for autophagy: deSUMOylation of BECN1 by SENP3. Autophagy 2019; 16:975-990. [PMID: 31373534 DOI: 10.1080/15548627.2019.1647944] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The roles of SUMOylation and the related enzymes in autophagic regulation are unclear. Based on our previous studies that identified the SUMO2/3-specific peptidase SENP3 as an oxidative stress-responsive molecule, we investigated the correlation between SUMOylation and macroautophagy/autophagy. We found that Senp3± mice showed increased autophagy in the liver under basal and fasting conditions, compared to Senp3+/+ mice. We constructed a liver-specific senp3 knockout mouse; these Senp3-deficient liver tissues showed increased autophagy as well. Autophagic flux was accelerated in hepatic and other cell lines following knockdown of SENP3, both before and after the cells underwent starvation in the form of the serum and amino acid deprivation. We demonstrated that BECN1/beclin 1, the core molecule of the BECN1-PIK3C3 complex, could be SUMO3-conjugated by PIAS3 predominantly at K380 and deSUMOylated by SENP3. The basal SUMOylation of BECN1 was increased upon cellular starvation, which enhanced autophagosome formation by facilitating BECN1 interaction with other complex components UVRAG, PIK3C3 and ATG14, thus promoting PIK3C3 activity. In contrast, SENP3 deSUMOylated BECN1, which impaired BECN1-PIK3C3 complex formation or stability to suppress the PIK3C3 activity. DeSUMOylation of BECN1 restrained autophagy induction under basal conditions and especially upon starvation when SENP3 had accumulated in response to the increased generation of reactive oxygen species. Thus, while reversible SUMOylation regulated the degree of autophagy, SENP3 provided an intrinsic overflow valve for fine-tuning autophagy induction. ABBREVIATIONS AL: autolysosome; AP: autophagosome; ATG: autophagy related; ATG14: autophagy related 14; BECN1: beclin 1, autophagy related; cKO: conditional knockout; co-IP: co-immunoprecipitation; CQ: chloroquine; EBSS: Earle's balanced salt solution; GFP: green fluorescent protein; MAP1LC3/LC3: microtubule-associated protein 1 light chain 3; MTOR: mechanistic target of rapamycin kinase; NAC: N-acetyl-L-cysteine; PIK3C3: phosphatidylinositol 3-kinase catalytic subunit type 3; PTM: post-translational modification; RFP: red fluorescent protein; ROS: reactive oxygen species; RUBCN/rubicon: RUN domain and cysteine-rich domain containing, BECN1-interacting protein; SENP3: SUMO specific peptidase 3; shRNA: small hairpin RNA; siRNA: small interfering RNA; SQSTM1: sequestosome 1; SUMO: small ubiquitin-like modifier; UVRAG: UV radiation resistance associated gene.
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Affiliation(s)
- Kejia Liu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Chu Guo
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Yimin Lao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Jie Yang
- Electron Microscopy Core Facilities, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Fei Chen
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Yuzheng Zhao
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing Technology, East China University of Science and Technology , Shanghai, China.,Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology , Shanghai, China
| | - Yi Yang
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing Technology, East China University of Science and Technology , Shanghai, China.,CAS Center for Excellence in Brain Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences , Shanghai, China
| | - Jie Yang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Jing Yi
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine , Shanghai, China
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Wang B, Shen D, Tang J, Li J, Xiao Y, Chen X, Cao C, Han D, Gao E, Zhao W, Zhang J, Chang J. Sodium (±)-5-bromo-2-(α-hydroxypentyl) benzoate ameliorates pressure overload-induced cardiac hypertrophy and dysfunction through inhibiting autophagy. J Cell Mol Med 2019; 23:6048-6059. [PMID: 31222939 PMCID: PMC6714213 DOI: 10.1111/jcmm.14468] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/17/2019] [Accepted: 04/30/2019] [Indexed: 12/14/2022] Open
Abstract
Sodium (±)-5-bromo-2-(a-hydroxypentyl) benzoate (generic name: brozopine, BZP) has been reported to protect against stroke-induced brain injury and was approved for Phase II clinical trials for treatment of stroke-related brain damage by the China Food and Drug Administration (CFDA). However, the role of BZP in cardiac diseases, especially in pressure overload-induced cardiac hypertrophy and heart failure, remains to be investigated. In the present study, angiotensin II stimulation and transverse aortic constriction were employed to induce cardiomyocyte hypertrophy in vitro and in vivo, respectively, prior to the assessment of myocardial cell autophagy. We observed that BZP administration ameliorated cardiomyocyte hypertrophy and excessive autophagic activity. Further results indicated that AMP-activated protein kinase (AMPK)-mediated activation of the mammalian target of rapamycin (mTOR) pathway likely played a role in regulation of autophagy by BZP after Ang II stimulation. The activation of AMPK with metformin reversed the BZP-induced suppression of autophagy. Finally, for the first time, we demonstrated that BZP could protect the heart from pressure overload-induced hypertrophy and dysfunction, and this effect is associated with its inhibition of maladaptive cardiomyocyte autophagy through the AMPK-mTOR signalling pathway. These findings indicated that BZP may serve as a promising compound for treatment of pressure overload-induced cardiac remodelling and heart failure.
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Affiliation(s)
- Bo Wang
- Department of Cardiology, Henan Province Key Laboratory of Cardiac Injury and Repair, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China
| | - Deliang Shen
- Department of Cardiology, Henan Province Key Laboratory of Cardiac Injury and Repair, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China
| | - Junnan Tang
- Department of Cardiology, Henan Province Key Laboratory of Cardiac Injury and Repair, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China
| | - Jing Li
- Department of Cardiology, Henan Province Key Laboratory of Cardiac Injury and Repair, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China
| | - Yue Xiao
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, P. R. China
| | - Xiuying Chen
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, P. R. China
| | - Chang Cao
- Department of Cardiology, Henan Province Key Laboratory of Cardiac Injury and Repair, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China
| | - Dongjian Han
- Department of Cardiology, Henan Province Key Laboratory of Cardiac Injury and Repair, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China
| | - Erhe Gao
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Wen Zhao
- Department of Cardiology, Henan Province Key Laboratory of Cardiac Injury and Repair, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China.,Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, P. R. China
| | - Jinying Zhang
- Department of Cardiology, Henan Province Key Laboratory of Cardiac Injury and Repair, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China
| | - Junbiao Chang
- School of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, P. R. China
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41
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Williams R. Circulation Research "In This Issue" Anthology. Circ Res 2019; 120:e58-e84. [PMID: 28596178 DOI: 10.1161/res.0000000000000152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Yan K, Wang K, Li P. The role of post-translational modifications in cardiac hypertrophy. J Cell Mol Med 2019; 23:3795-3807. [PMID: 30950211 PMCID: PMC6533522 DOI: 10.1111/jcmm.14330] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/06/2019] [Accepted: 03/19/2019] [Indexed: 12/19/2022] Open
Abstract
Pathological cardiac hypertrophy involves excessive protein synthesis, increased cardiac myocyte size and ultimately the development of heart failure. Thus, pathological cardiac hypertrophy is a major risk factor for many cardiovascular diseases and death in humans. Extensive research in the last decade has revealed that post‐translational modifications (PTMs), including phosphorylation, ubiquitination, SUMOylation, O‐GlcNAcylation, methylation and acetylation, play important roles in pathological cardiac hypertrophy pathways. These PTMs potently mediate myocardial hypertrophy responses via the interaction, stability, degradation, cellular translocation and activation of receptors, adaptors and signal transduction events. These changes occur in response to pathological hypertrophy stimuli. In this review, we summarize the roles of PTMs in regulating the development of pathological cardiac hypertrophy. Furthermore, PTMs are discussed as potential targets for treating or preventing cardiac hypertrophy.
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Affiliation(s)
- Kaowen Yan
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, China
| | - Kun Wang
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, China
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43
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Zech ATL, Singh SR, Schlossarek S, Carrier L. Autophagy in cardiomyopathies. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1867:118432. [PMID: 30831130 DOI: 10.1016/j.bbamcr.2019.01.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 12/19/2022]
Abstract
Autophagy (greek auto: self; phagein: eating) is a highly conserved process within eukaryotes that degrades long-lived proteins and organelles within lysosomes. Its accurate and constant operation in basal conditions ensures cellular homeostasis by degrading damaged cellular components and thereby acting not only as a quality control but as well as an energy supplier. An increasing body of evidence indicates a major role of autophagy in the regulation of cardiac homeostasis and function. In this review, we describe the different forms of mammalian autophagy, their regulations and monitoring with a specific emphasis on the heart. Furthermore, we address the role of autophagy in several forms of cardiomyopathy and the options for therapy.
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Affiliation(s)
- Antonia T L Zech
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg, Hamburg, Germany; German Centre for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Sonia R Singh
- Division of Molecular Cardiovascular Biology, The Heart Institute, Cincinnati Children's Hospital, Cincinnati, OH, United States of America
| | - Saskia Schlossarek
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg, Hamburg, Germany; German Centre for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Lucie Carrier
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg, Hamburg, Germany; German Centre for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany.
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44
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Cox OF, Huber PW. Developing Practical Therapeutic Strategies that Target Protein SUMOylation. Curr Drug Targets 2019; 20:960-969. [PMID: 30362419 PMCID: PMC6700758 DOI: 10.2174/1389450119666181026151802] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/19/2018] [Accepted: 10/19/2018] [Indexed: 01/02/2023]
Abstract
Post-translational modification by small ubiquitin-like modifier (SUMO) has emerged as a global mechanism for the control and integration of a wide variety of biological processes through the regulation of protein activity, stability and intracellular localization. As SUMOylation is examined in greater detail, it has become clear that the process is at the root of several pathologies including heart, endocrine, and inflammatory disease, and various types of cancer. Moreover, it is certain that perturbation of this process, either globally or of a specific protein, accounts for many instances of congenital birth defects. In order to be successful, practical strategies to ameliorate conditions due to disruptions in this post-translational modification will need to consider the multiple components of the SUMOylation machinery and the extraordinary number of proteins that undergo this modification.
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Affiliation(s)
- Olivia F. Cox
- Department of Chemistry and Biochemistry, Harper Cancer Research Institute, Center for Stem Cells and Regenerative Medicine, University of Notre Dame Notre Dame, Indiana 46556, U.S.A
| | - Paul W. Huber
- Department of Chemistry and Biochemistry, Harper Cancer Research Institute, Center for Stem Cells and Regenerative Medicine, University of Notre Dame Notre Dame, Indiana 46556, U.S.A
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45
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Yang Y, He Y, Wang X, Liang Z, He G, Zhang P, Zhu H, Xu N, Liang S. Protein SUMOylation modification and its associations with disease. Open Biol 2018; 7:rsob.170167. [PMID: 29021212 PMCID: PMC5666083 DOI: 10.1098/rsob.170167] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 08/31/2017] [Indexed: 02/05/2023] Open
Abstract
SUMOylation, as a post-translational modification, plays essential roles in various biological functions including cell growth, migration, cellular responses to stress and tumorigenesis. The imbalance of SUMOylation and deSUMOylation has been associated with the occurrence and progression of various diseases. Herein, we summarize and discuss the signal crosstalk between SUMOylation and ubiquitination of proteins, protein SUMOylation relations with several diseases, and the identification approaches for SUMOylation site. With the continuous development of bioinformatics and mass spectrometry, several accurate and high-throughput methods have been implemented to explore small ubiquitin-like modifier-modified substrates and sites, which is helpful for deciphering protein SUMOylation-mediated molecular mechanisms of disease.
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Affiliation(s)
- Yanfang Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Yu He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Xixi Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Ziwei Liang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Gu He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Peng Zhang
- Department of Urinary Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Hongxia Zhu
- Laboratory of Cell and Molecular Biology & State Key Laboratory of Molecular Oncology, Cancer Institute & Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, 100034, People's Republic of China
| | - Ningzhi Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China.,Laboratory of Cell and Molecular Biology & State Key Laboratory of Molecular Oncology, Cancer Institute & Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, 100034, People's Republic of China
| | - Shufang Liang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
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Maity J, Das B, Bohr VA, Karmakar P. Acidic domain of WRNp is critical for autophagy and up-regulates age associated proteins. DNA Repair (Amst) 2018; 68:1-11. [PMID: 29800817 DOI: 10.1016/j.dnarep.2018.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 04/06/2018] [Accepted: 05/17/2018] [Indexed: 01/07/2023]
Abstract
Impaired autophagy may be associated with normal and pathological aging. Here we explore a link between autophagy and domain function of Werner protein (WRNp). Werner (WRN) mutant cell lines AG11395, AG05229 and normal aged fibroblast AG13129 display a deficient response to tunicamycin mediated endoplasmic reticulum (ER) stress induced autophagy compared to clinically unaffected GM00637 and normal young fibroblast GM03440. Cellular endoplasmic reticulum (ER) stress mediated autophagy in WS and normal aged cells is restored after transfection with wild type full length WRN, but deletion of the acidic domain from wild type WRN fails to restore autophagy. The acidic domain of WRNp was shown to regulate its transcriptional activity, and here, we show that it affects the transcription of certain proteins involved in autophagy and aging. Furthermore, siRNA mediated silencing of WRN in normal fibroblast WI-38 resulted in decrease of age related proteins Lamin A/C and Mre11.
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Affiliation(s)
- Jyotirindra Maity
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, 700032, India
| | - Biswadip Das
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, 700032, India
| | - Vilhelm A Bohr
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Parimal Karmakar
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, 700032, India.
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Liu CY, Zhang YH, Li RB, Zhou LY, An T, Zhang RC, Zhai M, Huang Y, Yan KW, Dong YH, Ponnusamy M, Shan C, Xu S, Wang Q, Zhang YH, Zhang J, Wang K. LncRNA CAIF inhibits autophagy and attenuates myocardial infarction by blocking p53-mediated myocardin transcription. Nat Commun 2018; 9:29. [PMID: 29295976 PMCID: PMC5750208 DOI: 10.1038/s41467-017-02280-y] [Citation(s) in RCA: 244] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Accepted: 11/14/2017] [Indexed: 12/31/2022] Open
Abstract
Increasing evidence suggests that long noncoding RNAs (lncRNAs) play crucial roles in various biological processes. However, little is known about the effects of lncRNAs on autophagy. Here we report that a lncRNA, termed cardiac autophagy inhibitory factor (CAIF), suppresses cardiac autophagy and attenuates myocardial infarction by targeting p53-mediated myocardin transcription. Myocardin expression is upregulated upon H2O2 and ischemia/reperfusion, and knockdown of myocardin inhibits autophagy and attenuates myocardial infarction. p53 regulates cardiomyocytes autophagy and myocardial ischemia/reperfusion injury by regulating myocardin expression. CAIF directly binds to p53 protein and blocks p53-mediated myocardin transcription, which results in the decrease of myocardin expression. Collectively, our data reveal a novel CAIF-p53-myocardin axis as a critical regulator in cardiomyocyte autophagy, which will be potential therapeutic targets in treatment of defective autophagy-associated cardiovascular diseases.
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Affiliation(s)
- Cui-Yun Liu
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yu-Hui Zhang
- State Key Laboratory of Cardiovascular Disease, Heart Failure center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100037, China
| | - Rui-Bei Li
- School of Professional Studies, Northwestern University, Chicago, IL, 60611, USA
| | - Lu-Yu Zhou
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Tao An
- State Key Laboratory of Cardiovascular Disease, Heart Failure center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100037, China
| | - Rong-Cheng Zhang
- State Key Laboratory of Cardiovascular Disease, Heart Failure center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100037, China
| | - Mei Zhai
- State Key Laboratory of Cardiovascular Disease, Heart Failure center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100037, China
| | - Yan Huang
- State Key Laboratory of Cardiovascular Disease, Heart Failure center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100037, China
| | - Kao-Wen Yan
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yan-Han Dong
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Murugavel Ponnusamy
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Chan Shan
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Sheng Xu
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Qi Wang
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yan-Hui Zhang
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Jian Zhang
- State Key Laboratory of Cardiovascular Disease, Heart Failure center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100037, China
| | - Kun Wang
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China.
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Abstract
Autophagy is an evolutionarily conserved mechanism by which cytoplasmic elements are degraded intracellularly. Autophagy has also emerged as a major regulator of cardiac homeostasis and function. Autophagy preserves cardiac structure and function under baseline conditions and is activated during stress, limiting damage under most conditions. It reduces injury and preserves cardiac function during ischemia. It also reduces chronic ischemic remodeling and mediates the cardiac adaptation to pressure overload by restricting misfolded protein accumulation, mitochondrial dysfunction, and oxidative stress. Impairment of autophagy is involved in the development of diabetes and aging-induced cardiac abnormalities. Autophagy defects contribute to the development of cardiac proteinopathy and doxorubicin-induced cardiomyopathy. However, massive activation of autophagy may be detrimental for the heart in certain stress conditions, such as reperfusion injury. In this review, we discuss recent evidence supporting the important role of autophagy and mitophagy in the regulation of cardiac homeostasis and adaptation to stress.
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Affiliation(s)
- Sebastiano Sciarretta
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, 04100 Latina, Italy.,Department of AngioCardioNeurology, IRCCS Neuromed, 86077 Pozzilli, Italy
| | - Yasuhiro Maejima
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Graduate School of Medical and Dental Sciences, Tokyo 113-8510, Japan
| | - Daniela Zablocki
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey 07103, USA;
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey 07103, USA;
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49
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Gupta MK, Kaminski R, Mullen B, Gordon J, Burdo TH, Cheung JY, Feldman AM, Madesh M, Khalili K. HIV-1 Nef-induced cardiotoxicity through dysregulation of autophagy. Sci Rep 2017; 7:8572. [PMID: 28819214 PMCID: PMC5561171 DOI: 10.1038/s41598-017-08736-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/13/2017] [Indexed: 12/26/2022] Open
Abstract
Cardiovascular disease is a leading cause of co-morbidity in HIV-1 positive patients, even those in whom plasma virus levels are well-controlled. The pathogenic mechanism of HIV-1-associated cardiomyopathy is unknown, but has been presumed to be mediated indirectly, owing to the absence of productive HIV-1 replication in cardiomyocytes. We sought to investigate the effect of the HIV-1 auxiliary protein, Nef, which is suspected of extracellular release by infected CD4+ T cells on protein quality control and autophagy in cardiomyocytes. After detection of Nef in the serum of HIV-1 positive patients and the accumulation of this protein in human and primate heart tissue from HIV-1/SIV-infected cells we employed cell and molecular biology approaches to investigate the effect of Nef on cardiomyocyte-homeostasis by concentrating on protein quality control (PQC) pathway and autophagy. We found that HIV-1 Nef-mediated inhibition of autophagy flux leads to cytotoxicity and death of cardiomyocytes. Nef compromises autophagy at the maturation stage of autophagosomes by interacting with Beclin 1/Rab7 and dysregulating TFEB localization and cellular lysosome content. These effects were reversed by rapamycin treatment. Our results indicate that HIV-1 Nef-mediated inhibition of cellular PQC is one possible mechanism involved in the development of HIV-associated cardiomyopathy.
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Affiliation(s)
- Manish K Gupta
- Department of Neuroscience, Center for Neurovirology and Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Rafal Kaminski
- Department of Neuroscience, Center for Neurovirology and Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Brian Mullen
- Department of Neuroscience, Center for Neurovirology and Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Jennifer Gordon
- Department of Neuroscience, Center for Neurovirology and Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Tricia H Burdo
- Department of Neuroscience, Center for Neurovirology and Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Joseph Y Cheung
- Department of Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.,Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Arthur M Feldman
- Department of Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.,Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Muniswamy Madesh
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.,Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Kamel Khalili
- Department of Neuroscience, Center for Neurovirology and Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.
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50
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Hwang SP, Lee DH. Autophagy mediates SUMO-induced degradation of a polyglutamine protein ataxin-3. Anim Cells Syst (Seoul) 2017; 21:169-176. [PMID: 30460066 PMCID: PMC6138331 DOI: 10.1080/19768354.2017.1330765] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/25/2017] [Accepted: 04/30/2017] [Indexed: 01/27/2023] Open
Abstract
Previously, we reported that small ubiquitin-like modifier-1 (SUMO-1) promotes the degradation of a polyglutamine (polyQ) protein ataxin-3 and proposed that proteasomes mediate the proteolysis. Here, we present evidence that autophagy is also responsible for SUMO-induced degradation of this polyQ protein. The autophagy inhibitor 3-MA increased the steady-state level of ataxin-3 and stabilized SUMO-modified ataxin-3 more prominently than the proteasome inhibitor MG132. Interestingly, SUMO-1 overexpression enhanced the co-localization of ataxin-3 and autophagy marker LC3 without increasing LC3 puncta formation suggesting that SUMO-1 is involved in the substrate recruitment rather than the induction of autophagy. To assess the importance of a putative SUMO-interacting motif (SIM) in ataxin-3 for SUMO-induced degradation, we constructed a SIM mutant of ataxin-3. Substitution of putative SIM (V165G) facilitated the degradation of polyQ-expanded ataxin-3, which is more resistant to SUMO-induced degradation than the normal ataxin-3. These results together indicate that SUMO-1 promotes the degradation of ataxin-3 via autophagy and the putative SIM of ataxin-3 plays a role in this process.
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Affiliation(s)
- Soo Pyung Hwang
- Department of Bio and Environmental Technology, College of Natural Sciences, Seoul Women's University, Seoul, South Korea
| | - Do Hee Lee
- Department of Bio and Environmental Technology, College of Natural Sciences, Seoul Women's University, Seoul, South Korea
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