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Castiglioni L, Gelosa P, Muluhie M, Mercuriali B, Rzemieniec J, Gotti M, Fiordaliso F, Busca G, Sironi L. Fenofibrate reduces cardiac remodeling by mitochondrial dynamics preservation in a renovascular model of cardiac hypertrophy. Eur J Pharmacol 2024; 978:176767. [PMID: 38909934 DOI: 10.1016/j.ejphar.2024.176767] [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: 03/06/2024] [Revised: 06/20/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024]
Abstract
Fenofibrate, a PPAR-α agonist clinically used to lower serum lipid levels, reduces cardiac remodeling and improves cardiac function. However, its mechanism of action is not completely elucidated. In this study we examined the effect of fenofibrate on mitochondria in a rat model of renovascular hypertension, focusing on mediators controlling mitochondrial dynamics and autophagy. Rats with two-kidney one-clip (2K1C) hypertension were treated with fenofibrate 150 mg/kg/day (2K1C-FFB) or vehicle (2K1C-VEH) for 8 weeks. Systolic blood pressure and cardiac functional were in-vivo assessed, while cardiomyocyte size and protein expression of mediators of cardiac hypertrophy and mitochondrial dynamics were ex-vivo examined by histological and Western blot analyses. Fenofibrate treatment counteracted the development of hypertension and the increase of left ventricular mass, relative wall thickness and cross-sectional area of cardiomyocytes. Furthermore, fenofibrate re-balanced the expression Mfn2, Drp1 and Parkin, regulators of fusion, fission, mitophagy respectively. Regarding autophagy, the LC3-II/LC3-I ratio was increased in 2K1C-VEH and 2K1C-FFB, whereas the autophagy was increased only in 2K1C-FFB. In cultured H9C2 cardiomyoblasts, fenofibrate reversed the Ang II-induced mRNA up-regulation of hypertrophy markers Nppa and Myh7, accumulation of reactive oxygen species and depolarization of the mitochondrial membrane exerting protection mediated by up-regulation of the Uncoupling protein 2. Our results indicate that fenofibrate acts directly on cardiomyocytes and counteracts the pressure overload-induced cardiac maladaptive remodeling. This study reveals a so far hidden mechanism involving mitochondrial dynamics in the beneficial effects of fenofibrate, support its repurposing for the treatment of cardiac hypertrophy and provide new potential targets for its pharmacological function.
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Affiliation(s)
- Laura Castiglioni
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Paolo Gelosa
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Majeda Muluhie
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | | | - Joanna Rzemieniec
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Marco Gotti
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Fabio Fiordaliso
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Giuseppe Busca
- Azienda "Polo Veterinario di Lodi", University of Milan, Milan, Italy
| | - Luigi Sironi
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy.
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Albornoz N, Álvarez-Indo J, de la Peña A, Arias-Muñoz E, Coca A, Segovia-Miranda F, Kerr B, Budini M, Criollo A, García-Robles MA, Morselli E, Soza A, Burgos PV. Targeting the immunoproteasome in hypothalamic neurons as a novel therapeutic strategy for high-fat diet-induced obesity and metabolic dysregulation. J Neuroinflammation 2024; 21:191. [PMID: 39095788 PMCID: PMC11297766 DOI: 10.1186/s12974-024-03154-z] [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: 04/22/2024] [Accepted: 06/14/2024] [Indexed: 08/04/2024] Open
Abstract
OBJECTIVE Obesity represents a significant global health challenge characterized by chronic low-grade inflammation and metabolic dysregulation. The hypothalamus, a key regulator of energy homeostasis, is particularly susceptible to obesity's deleterious effects. This study investigated the role of the immunoproteasome, a specialized proteasomal complex implicated in inflammation and cellular homeostasis, during metabolic diseases. METHODS The levels of the immunoproteasome β5i subunit were analyzed by immunostaining, western blotting, and proteasome activity assay in mice fed with either a high-fat diet (HFD) or a regular diet (CHOW). We also characterized the impact of autophagy inhibition on the levels of the immunoproteasome β5i subunit and the activation of the AKT pathway. Finally, through confocal microscopy, we analyzed the contribution of β5i subunit inhibition on mitochondrial function by flow cytometry and mitophagy assay. RESULTS Using an HFD-fed obese mouse model, we found increased immunoproteasome levels in hypothalamic POMC neurons. Furthermore, we observed that palmitic acid (PA), a major component of saturated fats found in HFD, increased the levels of the β5i subunit of the immunoproteasome in hypothalamic neuronal cells. Notably, the increase in immunoproteasome expression was associated with decreased autophagy, a critical cellular process in maintaining homeostasis and suppressing inflammation. Functionally, PA disrupted the insulin-glucose axis, leading to reduced AKT phosphorylation and increased intracellular glucose levels in response to insulin due to the upregulation of the immunoproteasome. Mechanistically, we identified that the protein PTEN, a key regulator of insulin signaling, was reduced in an immunoproteasome-dependent manner. To further investigate the potential therapeutic implications of these findings, we used ONX-0914, a specific immunoproteasome inhibitor. We demonstrated that this inhibitor prevents PA-induced insulin-glucose axis imbalance. Given the interplay between mitochondrial dysfunction and metabolic disturbances, we explored the impact of ONX-0914 on mitochondrial function. Notably, ONX-0914 preserved mitochondrial membrane potential and attenuated mitochondrial ROS production in the presence of PA. Moreover, we found that ONX-0914 reduced mitophagy in the presence of PA. CONCLUSIONS Our findings strongly support the pathogenic involvement of the immunoproteasome in hypothalamic neurons in the context of HFD-induced obesity and metabolic disturbances. Targeting the immunoproteasome highlights a promising therapeutic strategy to mitigate the detrimental effects of obesity on the insulin-glucose axis and cellular homeostasis. This study provides valuable insights into the mechanisms driving obesity-related metabolic diseases and offers potential avenues for developing novel therapeutic interventions.
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Affiliation(s)
- Nicolás Albornoz
- Centro de Biología Celular y Biomedicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - Javiera Álvarez-Indo
- Centro de Biología Celular y Biomedicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - Adely de la Peña
- Centro de Biología Celular y Biomedicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - Eloisa Arias-Muñoz
- Centro de Biología Celular y Biomedicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - Alanis Coca
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Fabián Segovia-Miranda
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Bredford Kerr
- Centro de Biología Celular y Biomedicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - Mauricio Budini
- Laboratory of Molecular and Cellular Pathology, Institute in Dentistry Sciences, Dentistry Faculty, University of Chile, Santiago, Chile
| | - Alfredo Criollo
- Cell and Molecular Biology Laboratory, Institute in Dentistry Sciences, Dentistry Faculty, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - María A García-Robles
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Eugenia Morselli
- Department of Basic Sciences, Faculty of Medicine and Sciences, Universidad San Sebastián, Santiago, Chile
| | - Andrea Soza
- Centro de Biología Celular y Biomedicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile.
- Centro Basal Ciencia & Vida, Universidad San Sebastián, Santiago, Chile.
| | - Patricia V Burgos
- Centro de Biología Celular y Biomedicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile.
- Centro Basal Ciencia & Vida, Universidad San Sebastián, Santiago, Chile.
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3
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Nie Y, Ma Z, Zhang B, Sun M, Zhang D, Li HH, Song X. The role of the immunoproteasome in cardiovascular disease. Pharmacol Res 2024; 204:107215. [PMID: 38744399 DOI: 10.1016/j.phrs.2024.107215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 05/10/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
The ubiquitinproteasome system (UPS) is the main mechanism responsible for the intracellular degradation of misfolded or damaged proteins. Under inflammatory conditions, the immunoproteasome, an isoform of the proteasome, can be induced, enhancing the antigen-presenting function of the UPS. Furthermore, the immunoproteasome also serves nonimmune functions, such as maintaining protein homeostasis and regulating signalling pathways, and is involved in the pathophysiological processes of various cardiovascular diseases (CVDs). This review aims to provide a comprehensive summary of the current research on the involvement of the immunoproteasome in cardiovascular diseases, with the ultimate goal of identifying novel strategies for the treatment of these conditions.
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Affiliation(s)
- Yifei Nie
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Zhao Ma
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Baoen Zhang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Meichen Sun
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Dongfeng Zhang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
| | - Xiantao Song
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
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Ott C. Mapping the interplay of immunoproteasome and autophagy in different heart failure phenotypes. Free Radic Biol Med 2024; 218:149-165. [PMID: 38570171 DOI: 10.1016/j.freeradbiomed.2024.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/25/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Proper protein degradation is required for cellular protein homeostasis and organ function. Particularly, in post-mitotic cells, such as cardiomyocytes, unbalanced proteolysis due to inflammatory stimuli and oxidative stress contributes to organ dysfunction. To ensure appropriate protein turnover, eukaryotic cells exert two main degradation systems, the ubiquitin-proteasome-system and the autophagy-lysosome-pathway. It has been shown that proteasome activity affects the development of cardiac dysfunction differently, depending on the type of heart failure. Studies analyzing the inducible subtype of the proteasome, the immunoproteasome (i20S), demonstrated that the i20S plays a double role in diseased hearts. While i20S subunits are increased in cardiac hypertrophy, atrial fibrillation and partly in myocarditis, the opposite applies to diabetic cardiomyopathy and ischemia/reperfusion injury. In addition, the i20S appears to play a role in autophagy modulation depending on heart failure phenotype. This review summarizes the current literature on the i20S in different heart failure phenotypes, emphasizing the two faces of i20S in injured hearts. A selection of established i20S inhibitors is introduced and signaling pathways linking the i20S to autophagy are highlighted. Mapping the interplay of the i20S and autophagy in different types of heart failure offers potential approaches for developing treatment strategies against heart failure.
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Affiliation(s)
- Christiane Ott
- German Institute of Human Nutrition Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany.
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de la Visitación N, Chen W, Krishnan J, Van Beusecum JP, Amarnath V, Hennen EM, Zhao S, Saleem M, Ao M, Dikalov SI, Dikalova AE, Harrison DG, Patrick DM. Immunoproteasomal Processing of IsoLG-Adducted Proteins Is Essential for Hypertension. Circ Res 2024; 134:1276-1291. [PMID: 38623763 PMCID: PMC11081850 DOI: 10.1161/circresaha.124.324068] [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: 01/17/2024] [Accepted: 03/30/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Hypertension is characterized by CD8+ (cluster differentiation 8) T cell activation and infiltration into peripheral tissues. CD8+ T cell activation requires proteasomal processing of antigenic proteins. It has become clear that isoLG (isolevuglandin)-adduced peptides are antigenic in hypertension; however, IsoLGs inhibit the constitutive proteasome. We hypothesized that immunoproteasomal processing of isoLG-adducts is essential for CD8+ T cell activation and inflammation in hypertension. METHODS IsoLG adduct processing was studied in murine dendritic cells (DCs), endothelial cells (ECs), and B8 fibroblasts. The role of the proteasome and the immunoproteasome in Ang II (angiotensin II)-induced hypertension was studied in C57BL/6 mice treated with bortezomib or the immunoproteasome inhibitor PR-957 and by studying mice lacking 3 critical immunoproteasome subunits (triple knockout mouse). We also examined hypertension in mice lacking the critical immunoproteasome subunit LMP7 (large multifunctional peptidase 7) specifically in either DCs or ECs. RESULTS We found that oxidant stress increases the presence of isoLG adducts within MHC-I (class I major histocompatibility complex), and immunoproteasome overexpression augments this. Pharmacological or genetic inhibition of the immunoproteasome attenuated hypertension and tissue inflammation. Conditional deletion of LMP7 in either DCs or ECs attenuated hypertension and vascular inflammation. Finally, we defined the role of the innate immune receptors STING (stimulator of interferon genes) and TLR7/8 (toll-like receptor 7/8) as drivers of LMP7 expression in ECs. CONCLUSIONS These studies define a previously unknown role of the immunoproteasome in DCs and ECs in CD8+ T cell activation. The immunoproteasome in DCs and ECs is critical for isoLG-adduct presentation to CD8+ T cells, and in the endothelium, this guides homing and infiltration of T cells to specific tissues.
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Affiliation(s)
- Néstor de la Visitación
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Wei Chen
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jaya Krishnan
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Justin P. Van Beusecum
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Veterans Affairs, Charleston South Carolina
- Division of Nephrology, Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Venkataraman Amarnath
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | | - Shilin Zhao
- Vanderbilt Center for Quantitative Science, Vanderbilt University Medical Center
| | - Mohammad Saleem
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Mingfang Ao
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sergey I. Dikalov
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Anna E. Dikalova
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - David G. Harrison
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center
| | - David M. Patrick
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center
- Department of Veterans Affairs, Nashville, Tennessee
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Zhao QX, Yan SB, Wang F, Li XX, Shang GK, Zheng ZJ, Xiao J, Lin ZW, Li CB, Ji XP. STING deficiency alleviates ferroptosis through FPN1 stabilization in diabetic kidney disease. Biochem Pharmacol 2024; 222:116102. [PMID: 38428828 DOI: 10.1016/j.bcp.2024.116102] [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: 11/10/2023] [Revised: 02/07/2024] [Accepted: 02/27/2024] [Indexed: 03/03/2024]
Abstract
Ferroptosis, a form of cell death driven by iron-dependent lipid peroxidation, has known as one of the most significant pathological processes involved in diabetic kidney disease (DKD). Stimulator of interferon genes (STING) has been demonstrated its potential in regulating ferroptosis, but the regulatory role in DKD mice and underlying mechanisms haven't been illustrated. To elucidate whether and how STING regulates ferroptosis in DKD, we detected the influence of STING on diabetic-related ferroptosis in a diabetic model and in erastin-induced renal tubular epithelial cells (RTECs). Our study demonstrated that STING was abnormally activated and promoted ferroptosis in DKD. STING deficiency alleviated renal pathologic damages and disfunction in diabetic mice via alleviating ferroptosis and reducing oxidative stress. Mechanismly, STING inhibition was shown to improve ferroptosis and reduce oxidative stress in erastin-induced RTECs. The disruption of ferroportin1 (FPN1) on the basis of STING inhibition abolished the improvements in ferroptosis and promoted reactive oxygen species (ROS) generation. Further, STING inhibition alleviated ferroptosis via stabilizing FPN1 protein level by decreasing ubiquitinated FPN1 for proteasomal degradation. In conclusion, STING deficiency protected against diabetic renal injury via alleviating ferroptosis through stabilizing FPN1 and reducing oxidative stress, providing a possible potential approach for the treatment of DKD.
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Affiliation(s)
- Qin-Xiao Zhao
- National Key Laboratory for Innovation and Transformation of Luobing Theory, China; The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, China; Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Sen-Bo Yan
- National Key Laboratory for Innovation and Transformation of Luobing Theory, China; The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, China; Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Fen Wang
- Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Xiao-Xing Li
- Department of Geriatrics, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Guo-Kai Shang
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Zi-Jie Zheng
- National Key Laboratory for Innovation and Transformation of Luobing Theory, China; The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, China; Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Jie Xiao
- Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Zong-Wei Lin
- National Key Laboratory for Innovation and Transformation of Luobing Theory, China; The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, China; Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China.
| | - Chuan-Bao Li
- Department of Emergency Medicine and Chest Pain Center, Qilu Hospital of Shandong University, Jinan 250012, China; Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital of Shandong University, Jinan 250012, China.
| | - Xiao-Ping Ji
- National Key Laboratory for Innovation and Transformation of Luobing Theory, China; The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, China; Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China.
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Zhou J, Li C, Lu M, Jiang G, Chen S, Li H, Lu K. Pharmacological induction of autophagy reduces inflammation in macrophages by degrading immunoproteasome subunits. PLoS Biol 2024; 22:e3002537. [PMID: 38447109 PMCID: PMC10917451 DOI: 10.1371/journal.pbio.3002537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 02/05/2024] [Indexed: 03/08/2024] Open
Abstract
Defective autophagy is linked to proinflammatory diseases. However, the mechanisms by which autophagy limits inflammation remain elusive. Here, we found that the pan-FGFR inhibitor LY2874455 efficiently activated autophagy and suppressed expression of proinflammatory factors in macrophages stimulated by lipopolysaccharide (LPS). Multiplex proteomic profiling identified the immunoproteasome, which is a specific isoform of the 20s constitutive proteasome, as a substrate that is degraded by selective autophagy. SQSTM1/p62 was found to be a selective autophagy-related receptor that mediated this degradation. Autophagy deficiency or p62 knockdown blocked the effects of LY2874455, leading to the accumulation of immunoproteasomes and increases in inflammatory reactions. Expression of proinflammatory factors in autophagy-deficient macrophages could be reversed by immunoproteasome inhibitors, confirming the pivotal role of immunoproteasome turnover in the autophagy-mediated suppression on the expression of proinflammatory factors. In mice, LY2874455 protected against LPS-induced acute lung injury and dextran sulfate sodium (DSS)-induced colitis and caused low levels of proinflammatory cytokines and immunoproteasomes. These findings suggested that selective autophagy of the immunoproteasome was a key regulator of signaling via the innate immune system.
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Affiliation(s)
- Jiao Zhou
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Chunxia Li
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Meng Lu
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Gaoyue Jiang
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Shanze Chen
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital, Shenzhen Institute of Respiratory Diseases, Shenzhen, China
| | - Huihui Li
- West China Second University Hospital, Sichuan University, Chengdu, China
| | - Kefeng Lu
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
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Zhang J, Tu Y, Wei J, Zheng R, Shao J, Chen Q, Liang G, Ying H, Han X, Shi Q. Dectin1 contributes to hypertensive vascular injury by promoting macrophage infiltration through activating the Syk/NF-κB pathway. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166911. [PMID: 37813169 DOI: 10.1016/j.bbadis.2023.166911] [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: 06/13/2023] [Revised: 09/13/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023]
Abstract
Vascular injury is an early manifestation leading to end-organ damage in hypertension pathogenesis, which involves a macrophage-associated immune response. Dendritic cell-associated C-type lectin-1 (Dectin1) is a pivotal player in regulating inflammation-mediated cardiovascular disease. However, its role in hypertension-induced vascular damage and the underlying mechanisms remain unclear. We hypothesized that Dectin1 might accelerate angiotensin II (Ang II)- or deoxycorticosterone acetate-salt (DOCA-salt)-induced vascular injury through proinflammatory actions in macrophages. Macrophage Dectin1 was upregulated in mouse aortic tissues stimulated with Ang II. In the peripheral blood, Ang II also increased CD11b+F4/80+ macrophages in mice. In our constructed Dectin1 knockout mice, Dectin1 deletion protected against Ang II-induced EB extravasation and aortic wall thickness. Deficiency of Dectin1 or its pharmacological inhibition considerably improved fibrosis and inflammation responses, accompanied by a reduction in M1 macrophage polarization as well as proinflammatory cytokines and chemokines induced by Ang II or DOCA-salt. Through the bone marrow (BM) transplantation assay, these effects were verified in the wild type mice reconstituted with Dectin1-deficient BM cells. Mechanistically, Ang II promoted Dectin1 homodimerization, thereby triggering the spleen tyrosine kinase/nuclear factor kappa B pro-inflammatory cascade to induce the expression of inflammatory factors and chemokines in vivo and in vitro. In conclusion, Dectin1 has an essential role in the pathogenic procedure of Ang II-stimulated or DOCA-salt-induced vascular damage in mice and represents a promising therapeutic target for cardiovascular diseases.
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Affiliation(s)
- Jiajia Zhang
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China; Zhejiang TCM Key Laboratory of Pharmacology and Translational Research of Natural Products, Hangzhou Medical College, Hangzhou 310013, China; Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou 310013, China
| | - Yu Tu
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China; Zhejiang TCM Key Laboratory of Pharmacology and Translational Research of Natural Products, Hangzhou Medical College, Hangzhou 310013, China; Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou 310013, China
| | - Jiajia Wei
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China
| | - Ruyi Zheng
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China
| | - Ji Shao
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China
| | - Qinhua Chen
- Key Laboratory of TCM Clinical Pharmacy, Shenzhen Baoan Authentic TCM Therapy Hospital, Guangzhou University of Chinese Medicine, Shenzhen 518101, China
| | - Guang Liang
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China; Zhejiang TCM Key Laboratory of Pharmacology and Translational Research of Natural Products, Hangzhou Medical College, Hangzhou 310013, China
| | - Huazhong Ying
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China; Zhejiang TCM Key Laboratory of Pharmacology and Translational Research of Natural Products, Hangzhou Medical College, Hangzhou 310013, China; Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou 310013, China.
| | - Xue Han
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China; Zhejiang TCM Key Laboratory of Pharmacology and Translational Research of Natural Products, Hangzhou Medical College, Hangzhou 310013, China.
| | - Qiaojuan Shi
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou 310013, China; Zhejiang TCM Key Laboratory of Pharmacology and Translational Research of Natural Products, Hangzhou Medical College, Hangzhou 310013, China; Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou 310013, China.
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Bin S, Xinyi F, Huan P, Xiaoqin Z, Jiming W, Yi H, Ziyue L, Xiaochun Z, Zhouqi L, Bangwei Z, Jing J, Shihui L, Jinlai G. SOX4 as a potential therapeutic target for pathological cardiac hypertrophy. Eur J Pharmacol 2023; 958:176071. [PMID: 37741429 DOI: 10.1016/j.ejphar.2023.176071] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023]
Abstract
Pathological cardiac hypertrophy can lead to heart failure, making its prevention crucial. SOX4, a SOX transcription factor, regulates tissue growth and development, although its role in pathological cardiac hypertrophy is unclear. We found that the SOX4 expression was elevated in hypertrophic hearts and angiotensin II (Ang II)-treated neonatal rat cardiomyocytes (NRCMs), and knocking down the SOX4 expression in NRCMs and mouse hearts significantly reduced the hypertrophic response. Mechanistically, SOX4 can bind to the SIRT3 promoter, inhibit SIRT3 transcription and expression, and thus affect downstream MnSOD acetylation levels, leading to abnormal increases in ROS and oxidative stress levels and promoting the occurrence of cardiac hypertrophy. In conclusion, this study identified a new role for SOX4 in regulating cardiac hypertrophy, and decreasing SOX4 expression may be a potential treatment for pathological cardiac hypertrophy.
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Affiliation(s)
- Shen Bin
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China
| | - Feng Xinyi
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China
| | - Pan Huan
- Department of Central Laboratory, The Affiliated Hospital of Jiaxing University, Jiaxing, 314000, China
| | - Zhang Xiaoqin
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China
| | - Wu Jiming
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China
| | - He Yi
- Department of Central Laboratory, The Affiliated Hospital of Jiaxing University, Jiaxing, 314000, China; Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing, 314000, China
| | - Li Ziyue
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China
| | - Zou Xiaochun
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China
| | - Lu Zhouqi
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China
| | - Zhou Bangwei
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China
| | - Jin Jing
- Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing, 314000, China.
| | - Liu Shihui
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China.
| | - Gao Jinlai
- Department of Pharmacology, College of Medical, Jiaxing University, Jiaxing, 314000, China.
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Zhang X, Wang N, Fu P, An Y, Sun F, Wang C, Han X, Zhang Y, Yu X, Liu Y. Dapagliflozin Attenuates Heart Failure With Preserved Ejection Fraction Remodeling and Dysfunction by Elevating β-Hydroxybutyrate-activated Citrate Synthase. J Cardiovasc Pharmacol 2023; 82:375-388. [PMID: 37643027 PMCID: PMC10635406 DOI: 10.1097/fjc.0000000000001474] [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: 03/17/2023] [Accepted: 08/07/2023] [Indexed: 08/31/2023]
Abstract
ABSTRACT Heart failure with preserved ejection fraction (HFpEF) is highly prevalent, accounting for 50% of all heart failure patients, and is associated with significant mortality. Sodium-glucose cotransporter subtype inhibitor (SGLT2i) is recommended in the AHA and ESC guidelines for the treatment of HFpEF, but the mechanism of SGLT2i to prevent and treat cardiac remodeling and dysfunction is currently unknown, hindering the understanding of the pathophysiology of HFpEF and the development of novel therapeutics. HFpEF model was induced by a high-fat diet (60% calories from lard) + N [w] -nitro- l -arginine methyl ester ( l -NAME-0.5 g/L) (2 Hit) in male Sprague Dawley rats to effectively recapture the myriad phenotype of HFpEF. This study's results showed that administration of dapagliflozin (DAPA, SGLT2 inhibitor) significantly limited the 2-Hit-induced cardiomyocyte hypertrophy, apoptosis, inflammation, oxidative stress, and fibrosis. It also improved cardiac diastolic and systolic dysfunction in a late-stage progression of HFpEF. Mechanistically, DAPA influences energy metabolism associated with fatty acid intake and mitochondrial dysfunction in HFpEF by increasing β-hydroxybutyric acid (β-OHB) levels, directing the activation of citrate synthase, reducing acetyl coenzyme A (acetyl-CoA) pools, modulating adenosine 5'-triphosphate production, and increasing the expression of mitochondrial oxidative phosphorylation system complexes I-V. In addition, following clinical DAPA therapy, the blood levels of β-OHB and citrate synthase increased and the levels of acetyl-CoA in the blood of HFpEF patients decreased. SGLT2i plays a beneficial role in the prevention and treatment of cardiac remodeling and dysfunction in HFpEF model by attenuating cardiometabolic dysregulation.
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Affiliation(s)
- Xinxin Zhang
- Department of Cardiology, Institute of Cardiovascular Diseases
| | - Ning Wang
- Department of Cardiology, Institute of Cardiovascular Diseases
| | - Peng Fu
- Department of Cardiology, Institute of Cardiovascular Diseases
| | - Yanliang An
- Department of Cardiology, Institute of Cardiovascular Diseases
| | - Fangfang Sun
- Department of Nuclear Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China; and
| | - Chengdong Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China; and
| | - Xiao Han
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yunlong Zhang
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xiaohong Yu
- Department of Cardiology, Institute of Cardiovascular Diseases
| | - Ying Liu
- Department of Cardiology, Institute of Cardiovascular Diseases
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11
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Gao J, Su HX, Li PB, Shi KN, Li HH. TCH-165 attenuates cardiac ischaemia/reperfusion injury by balancing mitochondrial dynamics via increasing proteasome activity. Eur J Pharmacol 2023; 957:176011. [PMID: 37633323 DOI: 10.1016/j.ejphar.2023.176011] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/13/2023] [Accepted: 08/21/2023] [Indexed: 08/28/2023]
Abstract
The proteasome is the main complex responsible for maintaining intracellular protein homeostasis, impairment of which is associated with cardiac ischaemia/reperfusion (I/R) injury. The small molecule TCH-165 has been found to activate the 20S proteasome to remove disordered proteins in multiple myeloma and glioblastoma. However, the preventive effect of TCH-165 against I/R-mediated cardiac impairment in mice remains largely unknown. Here, a cardiac I/R model was established in mice. Heart function was assessed with echocardiography. Cardiac infarction, myocyte death, and superoxide level were evaluated by 2,3,5-triphenyltetrazolium chloride (TTC)-Evans blue staining, terminal deoxynucleotidyl transferase-mediated dUTP nick and labelling (TUNEL) assay and immunostaining, respectively. Our results showed that TCH-165 treatment markedly ameliorated I/R-mediated cardiac dysfunction and decreased the infarct size, apoptosis, and superoxide levels. Mechanistically, TCH-165 increased immunoproteasome subunit expression/activity, increasing pro-fission protein dynamin-1-like protein (DNM1L, also known as DRP1) degradation and the expression of the pro-fusion proteins mitofusin 1/2 (Mfn1/2) and thereby leading to mitochondrial fission/fusion balance. In vitro experiments confirmed that inhibition of proteasome activity by epoxomicin abolished the protective effect of TCH-165 against hypoxia/reoxygenation (H/R)-induced increases in cardiomyocyte apoptosis, superoxide production and mitochondrial fission. In summary, TCH-165 is a newly discovered inducer of immunoproteasome activity that exerts a preventive effect against cardiac I/R damage by targeting Drp1 degradation, indicating that it may be as a potential therapeutic candidate for ischaemic heart disease.
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Affiliation(s)
- Jing Gao
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Hui-Xiang Su
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Pang-Bo Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Kai-Na Shi
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China.
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12
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Han X, Zhang YL, Lin QY, Li HH, Guo SB. ATGL deficiency aggravates pressure overload-triggered myocardial hypertrophic remodeling associated with the proteasome-PTEN-mTOR-autophagy pathway. Cell Biol Toxicol 2023; 39:2113-2131. [PMID: 35218467 PMCID: PMC10547847 DOI: 10.1007/s10565-022-09699-0] [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: 06/24/2021] [Accepted: 01/26/2022] [Indexed: 11/26/2022]
Abstract
Persistent myocardial hypertrophy frequently leads to heart failure (HF). Intramyocardial triacylglycerol (TAG) accumulation is closely related with cardiac remodeling and abnormal contractile function. Adipose triglyceride lipase (ATGL), a key enzyme in TAG metabolism, regulates cardiac function. However, its associated molecular pathways have not been fully defined. Here, cardiac hypertrophy and HF were induced in wild-type (WT) or ATGL knockout (KO) mice through transverse aortic constriction (TAC) for up to 4 weeks. TAC in WT mice significantly reduced cardiac function and autophagy while enhancing left ventricular hypertrophy, interstitial fibrosis, inflammatory response, superoxide generation, and cardiomyocyte apoptosis, accompanied with upregulation of the proteasome activity, reduction of PTEN level and activation of AKT-mTOR signaling, and these effects were further aggravated in ATGL KO mice. Interestingly, ATGL KO-mediated cardiac dysfunction and remodeling were markedly reversed by proteasome inhibitor (epoxomicin) or autophagic activator (rapamycin), but accelerated by PTEN inhibitor (VO-OHpic) or autophagy inhibitor 3-MA. Mechanistically, ATGL KO upregulated proteasome expression and activity, which in turn mediates PTEN degradation leading to activation of AKT-mTOR signaling and inhibition of autophagy, thereby enhancing hypertrophic remodeling and HF. In conclusion, ATGL KO contributes to TAC-induced cardiac dysfunction and adverse remodeling probably associated with the proteasome-PTEN-mTOR-autophagy pathway. Therefore, modulation of this pathway may have a therapeutic effect potential for hypertrophic heart disease. TAC-induced downregulation of ATGL results in increased proteasome (β1i/β2i/β5i) activity, which in turn promotes degradation of PTEN and activation of AKT-mTOR signaling and then inhibits autophagy and ATP production, thereby leading to cardiac hypertrophic remodeling and dysfunction. Conversely, blocking proteasome activity or activating autophagy attenuates these effects.
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Affiliation(s)
- Xiao Han
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Yun-Long Zhang
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Qiu-Yue Lin
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
| | - Shu-Bin Guo
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
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13
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Wang M, Liu Y, Dai L, Zhong X, Zhang W, Xie Y, Zeng H, Wang H. ONX0914 inhibition of immunoproteasome subunit LMP7 ameliorates diabetic cardiomyopathy via restraining endothelial-mesenchymal transition. Clin Sci (Lond) 2023; 137:1297-1309. [PMID: 37551616 DOI: 10.1042/cs20230732] [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: 07/04/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/09/2023]
Abstract
Diabetic cardiomyopathy (DCM) is a chronic metabolic disease with few effective therapeutic options. Immunoproteasome is an inducible proteasome that plays an important role in the regulation of many cardiovascular diseases, while its role in DCM remains under discussion. The present study aims to demonstrate whether inhibiting immunoproteasome subunit low molecular weight polypeptide 7 (LMP7) could alleviate DCM. Here, we established a type I diabetes mellitus mouse model by streptozotocin (STZ) in 8-week-old male wild-type C57BL/6J mice. We found that immunoproteasome subunit LMP7 was overexpressed in the heart of diabetic mice, while inhibiting LMP7 with pharmacological inhibitor ONX0914 significantly alleviated myocardial fibrosis and improved cardiac function. Besides, compared with diabetic mice, ONX0914 treatment reduced protein levels of mesenchymal markers (Vimentin, α-smooth muscle actin, and SM22α) and increased endothelial markers (VE-cadherin and CD31). In TGFβ1 stimulated HUVECs, we also observed that ONX0914 could inhibit endothelial-mesenchymal transition (EndMT). Mechanistically, we prove that ONX0914 could regulate autophagy activity both in vivo and vitro. Meanwhile, the protective effect of ONX0914 on TGFβ1 stimulated HUVECs could be abolished by 3-methyladenine (3MA) or hydroxychloroquine (CQ). All in all, our data highlight that inhibition of LMP7 with ONX0914 could ameliorate EndMT in diabetic mouse hearts at least in part via autophagy activation. Thus, LMP7 may be a potential therapeutic target for the DCM.
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Affiliation(s)
- Mengwen Wang
- Department of Internal Medicine, Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
- Hubei Provincial Engineering Research Center of Vascular Interventional Therapy, Wuhan 430030, Hubei, China
| | - Yujian Liu
- Department of Internal Medicine, Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
- Hubei Provincial Engineering Research Center of Vascular Interventional Therapy, Wuhan 430030, Hubei, China
| | - Lei Dai
- Department of Internal Medicine, Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
- Hubei Provincial Engineering Research Center of Vascular Interventional Therapy, Wuhan 430030, Hubei, China
| | - Xiaodan Zhong
- Department of Internal Medicine, Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
- Hubei Provincial Engineering Research Center of Vascular Interventional Therapy, Wuhan 430030, Hubei, China
| | - Wenjun Zhang
- Department of Internal Medicine, Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
- Hubei Provincial Engineering Research Center of Vascular Interventional Therapy, Wuhan 430030, Hubei, China
| | - Yang Xie
- Department of Internal Medicine, Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
- Hubei Provincial Engineering Research Center of Vascular Interventional Therapy, Wuhan 430030, Hubei, China
| | - Hesong Zeng
- Department of Internal Medicine, Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
- Hubei Provincial Engineering Research Center of Vascular Interventional Therapy, Wuhan 430030, Hubei, China
| | - Hongjie Wang
- Department of Internal Medicine, Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
- Hubei Provincial Engineering Research Center of Vascular Interventional Therapy, Wuhan 430030, Hubei, China
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14
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Su HX, Li PB, Shi KN, Gao J, Zhang HJ, Li HH. The immunoproteasome subunit β2i ameliorates myocardial ischemia/reperfusion injury by regulating Parkin-Mfn1/2-mediated mitochondrial fusion. Cell Mol Life Sci 2023; 80:231. [PMID: 37501008 PMCID: PMC11071955 DOI: 10.1007/s00018-023-04867-9] [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: 04/12/2023] [Revised: 07/02/2023] [Accepted: 07/09/2023] [Indexed: 07/29/2023]
Abstract
Mitochondrial dynamics are critical for maintaining mitochondrial morphology and function during cardiac ischemia and reperfusion (I/R). The immunoproteasome complex is an inducible isoform of the proteasome that plays a key role in modulating inflammation and some cardiovascular diseases, but the importance of immunoproteasome catalytic subunit β2i (also known as LMP10 or MECL1) in regulating mitochondrial dynamics and cardiac I/R injury is largely unknown. Here, using β2i-knockout (KO) mice and rAAV9-β2i-injected mice, we discovered that β2i expression and its trypsin-like activity were significantly attenuated in the mouse I/R myocardium and in patients with myocardial infarction (MI). Moreover, β2i-KO mice exhibited greatly enhanced I/R-mediated cardiac dysfunction, infarct size, myocyte apoptosis and oxidative stress accompanied by excessive mitochondrial fission due to Mfn1/2 and Drp1 imbalance. Conversely, cardiac overexpression of β2i in mice injected with recombinant adeno-associated virus 9 (rAAV9)-β2i ameliorated cardiac I/R injury. Mechanistically, I/R injury reduced β2i expression and activity, which increased the expression of the E3 ligase Parkin protein and promoted the degradation of mitofusin 1/2 (Mfn1/2), leading to excessive mitochondrial fission. In conclusion, our data suggest for the first time that β2i exerts a protective role against cardiac I/R injury and that increasing β2i expression may be a new therapeutic option for cardiac ischemic disease in clinical practice. Graphical abstract showing how the immunoproteasome subunit β2i ameliorates myocardial I/R injury by regulating Parkin-Mfn1/2-mediated mitochondrial fusion.
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Affiliation(s)
- Hui-Xiang Su
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Pang-Bo Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Kai-Na Shi
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Jing Gao
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Hong-Jia Zhang
- Department of Cardiac Surgery, Beijing An-Zhen Hospital, Capital Medical University, No. 2 An-Zhen Road, Chaoyang District, Beijing, 100029, China.
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China.
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15
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Hedayati N, Yaghoobi A, Salami M, Gholinezhad Y, Aghadavood F, Eshraghi R, Aarabi MH, Homayoonfal M, Asemi Z, Mirzaei H, Hajijafari M, Mafi A, Rezaee M. Impact of polyphenols on heart failure and cardiac hypertrophy: clinical effects and molecular mechanisms. Front Cardiovasc Med 2023; 10:1174816. [PMID: 37293283 PMCID: PMC10244790 DOI: 10.3389/fcvm.2023.1174816] [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: 02/27/2023] [Accepted: 05/02/2023] [Indexed: 06/10/2023] Open
Abstract
Polyphenols are abundant in regular diets and possess antioxidant, anti-inflammatory, anti-cancer, neuroprotective, and cardioprotective effects. Regarding the inadequacy of the current treatments in preventing cardiac remodeling following cardiovascular diseases, attention has been focused on improving cardiac function with potential alternatives such as polyphenols. The following online databases were searched for relevant orginial published from 2000 to 2023: EMBASE, MEDLINE, and Web of Science databases. The search strategy aimed to assess the effects of polyphenols on heart failure and keywords were "heart failure" and "polyphenols" and "cardiac hypertrophy" and "molecular mechanisms". Our results indicated polyphenols are repeatedly indicated to regulate various heart failure-related vital molecules and signaling pathways, such as inactivating fibrotic and hypertrophic factors, preventing mitochondrial dysfunction and free radical production, the underlying causes of apoptosis, and also improving lipid profile and cellular metabolism. In the current study, we aimed to review the most recent literature and investigations on the underlying mechanism of actions of different polyphenols subclasses in cardiac hypertrophy and heart failure to provide deep insight into novel mechanistic treatments and direct future studies in this context. Moreover, due to polyphenols' low bioavailability from conventional oral and intravenous administration routes, in this study, we have also investigated the currently accessible nano-drug delivery methods to optimize the treatment outcomes by providing sufficient drug delivery, targeted therapy, and less off-target effects, as desired by precision medicine standards.
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Affiliation(s)
- Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Alireza Yaghoobi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marziyeh Salami
- Department of Clinical Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Yasaman Gholinezhad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farnaz Aghadavood
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Eshraghi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad-Hossein Aarabi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mina Homayoonfal
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Hajijafari
- Department of Anesthesiology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Malihe Rezaee
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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16
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Shi KN, Li PB, Su HX, Gao J, Li HH. MK-886 protects against cardiac ischaemia/reperfusion injury by activating proteasome-Keap1-NRF2 signalling. Redox Biol 2023; 62:102706. [PMID: 37098317 PMCID: PMC10149391 DOI: 10.1016/j.redox.2023.102706] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/09/2023] [Accepted: 04/18/2023] [Indexed: 04/27/2023] Open
Abstract
Oxidative stress is considered a key factor contributing to the initiation and development of cardiac injury following ischaemia‒reperfusion (I/R). Arachidonate 5-lipoxygenase (ALOX5) is a rate-limiting enzyme for leukotriene biosynthesis. MK-886 is an inhibitor of ALOX5 that exhibits anti-inflammatory and antioxidant activities. However, the significance of MK-886 in preventing I/R-mediated cardiac injury and the underlying mechanism remain unclear. Cardiac I/R model was produced by ligation/release of the left anterior descending artery. MK-886 (20 mg/kg) was administered intraperitoneally into mice at 1 and 24 h before I/R. Our results indicated that MK-886 treatment significantly attenuated I/R-mediated cardiac contractile dysfunction and decreased the infarct area, myocyte apoptosis, and oxidative stress accompanied with reduction of Kelch-like ECH-associated protein 1 (keap1) and upregulation of nuclear factor erythroid 2-related factor 2 (NRF2). Conversely, administration of the proteasome inhibitor epoxomicin and NRF2 inhibitor ML385 greatly abrogated MK-886-mediated cardioprotection after I/R injury. Mechanistically, MK-886 enhanced the expression of the immunoproteasome subunit β5i, which interacted with keap1 and enhanced its degradation, leading to activation of the NRF2-dependent antioxidant response and improvement of mitochondrial fusion-fission balance in the I/R-treated heart. In summary, our present findings indicated that MK-886 could protect the heart against I/R injury and highlight that MK-886 may represent a promising therapeutic candidate for preventing ischaemic disease.
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Affiliation(s)
- Kai-Na Shi
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Pang-Bo Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Hui-Xiang Su
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Jing Gao
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China.
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de la Visitación N, Chen W, Krishnan J, Van Beusecum JP, Amarnath V, Hennen EM, Zhao S, Saleem M, Ao M, Harrison DG, Patrick DM. Immunoproteasomal Processing of Isolevuglandin Adducts in Hypertension. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.10.536054. [PMID: 37383945 PMCID: PMC10299468 DOI: 10.1101/2023.04.10.536054] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Isolevuglandins (isoLGs) are lipid aldehydes that form in the presence of reactive oxygen species (ROS) and drive immune activation. We found that isoLG-adducts are presented within the context of major histocompatibility complexes (MHC-I) by an immunoproteasome dependent mechanism. Pharmacologic inhibition of LMP7, the chymotrypsin subunit of the immunoproteasome, attenuates hypertension and tissue inflammation in the angiotensin II (Ang II) model of hypertension. Genetic loss of function of all immunoproteasome subunits or conditional deletion of LMP7 in dendritic cell (DCs) or endothelial cells (ECs) attenuated hypertension, reduced aortic T cell infiltration, and reduced isoLG-adduct MHC-I interaction. Furthermore, isoLG adducts structurally resemble double-stranded DNA and contribute to the activation of STING in ECs. These studies define a critical role of the immunoproteasome in the processing and presentation of isoLG-adducts. Moreover they define a role of LMP7 as a regulator of T cell activation and tissue infiltration in hypertension.
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Ursolic Acid Ameliorates Myocardial Ischaemia/Reperfusion Injury by Improving Mitochondrial Function via Immunoproteasome-PP2A-AMPK Signalling. Nutrients 2023; 15:nu15041049. [PMID: 36839407 PMCID: PMC9967761 DOI: 10.3390/nu15041049] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/16/2023] [Accepted: 02/18/2023] [Indexed: 02/22/2023] Open
Abstract
Cardiac ischaemia/reperfusion (I/R) injury causes cardiomyocyte apoptosis and mitochondrial dysfunction. Ursolic acid (UA), as a pentacyclic triterpenoid carboxylic acid, exerts several bioactivities in animal models of different diseases, but the preventive role of UA in I/R-induced myocardial dysfunction remains largely unknown. Male wild-type mice were pre-administered with UA at a dosage of 80 mg/kg i.p. and then subjected to cardiac I/R injury for 24 h. Cardiac function and pathological changes were examined by echocardiography and histological staining. The protein and mRNA levels of the genes were determined using qPCR and immunoblotting analysis. Our results revealed that UA administration in mice significantly attenuated the I/R-induced decline in cardiac function, infarct size, myocyte apoptosis, and oxidative stress. Mechanistically, UA increased three immunoproteasome catalytic subunit expressions and activities, which promoted ubiquitinated PP2A degradation and activated AMPK-PGC1α signalling, leading to improved mitochondrial biosynthesis and dynamic balance. In vitro experiments confirmed that UA treatment prevented hypoxia/reperfusion (H/R)-induced cardiomyocyte apoptosis and mitochondrial dysfunction through activation of AMPK signalling. In summary, our findings identify UA as a new activator of the immunoproteasome that exerts a protective role in I/R-induced myocardial dysfunction and suggest that UA supplementation could be beneficial for the prevention of cardiac ischaemic disease.
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Gao Z, Li C, Sun H, Bian Y, Cui Z, Wang N, Wang Z, Yang Y, Liu Z, He Z, Li B, Li F, Li Z, Wang L, Zhang D, Yang L, Xu Z, Li X, Xu H. N 6-methyladenosine-modified USP13 induces pro-survival autophagy and imatinib resistance via regulating the stabilization of autophagy-related protein 5 in gastrointestinal stromal tumors. Cell Death Differ 2023; 30:544-559. [PMID: 36528756 PMCID: PMC9950061 DOI: 10.1038/s41418-022-01107-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/04/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Secondary resistance to imatinib (IM) represents a major challenge for therapy of gastrointestinal stromal tumors (GISTs). Aberrations in oncogenic pathways, including autophagy, correlate with IM resistance. Regulation of autophagy-related protein 5 (ATG5) by the ubiquitin-proteasome system is critical for autophagic activity, although the molecular mechanisms that underpin reversible deubiquitination of ATG5 have not been deciphered fully. Here, we identified USP13 as an essential deubiquitinase that stabilizes ATG5 in a process that depends on the PAK1 serine/threonine-protein kinase and which enhances autophagy and promotes IM resistance in GIST cells. USP13 preferentially is induced in GIST cells by IM and interacts with ATG5, which leads to stabilization of ATG5 through deubiquitination. Activation of PAK1 promoted phosphorylation of ATG5 thereby enhancing the interaction of ATG5 with USP13. Furthermore, N6-methyladenosine methyltransferase-like 3 (METTL3) mediated stabilization of USP13 mRNA that required the m6A reader IGF2BP2. Moreover, an inhibitor of USP13 caused ATG5 decay and co-administration of this inhibitor with 3-methyladenine boosted treatment efficacy of IM in murine xenograft models derived from GIST cells. Our findings highlight USP13 as an essential regulator of autophagy and IM resistance in GIST cells and reveal USP13 as a novel potential therapeutic target for GIST treatment.
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Affiliation(s)
- Zhishuang Gao
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Chao Li
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Haoyu Sun
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Yibo Bian
- Department of Oncology, the Second Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
| | - Zhiwei Cui
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Nuofan Wang
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Zhangjie Wang
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yang Yang
- Institute of Digestive Endoscopy and Medical Center for Digestive Diseases, Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210000, Jiangsu, China
| | - Zonghang Liu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Zhongyuan He
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Bowen Li
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Fengyuan Li
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Zheng Li
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Linjun Wang
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Diancai Zhang
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Li Yang
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Zekuan Xu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China
| | - Xueming Li
- School of Pharmaceutical Science, Nanjing Tech University, 211816, Nanjing, China.
| | - Hao Xu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China.
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, 211166, Nanjing, China.
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20
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Extracellular vesicles DJ-1 derived from hypoxia-conditioned hMSCs alleviate cardiac hypertrophy by suppressing mitochondria dysfunction and preventing ATRAP degradation. Pharmacol Res 2023; 187:106607. [PMID: 36509316 DOI: 10.1016/j.phrs.2022.106607] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND As a pathological myocardial remodeling process in a variety of cardiovascular diseases, cardiac hypertrophy still has no effective treatment. Human mesenchymal stem cells (hMSCs) derived extracellular vesicles (EVs) has been recognized as a promising treatment strategy for cardiac disease. METHODS In this study, the inhibitory effects on cardiac hypertrophy are compared between normoxia-conditioned hMSC-derived EVs (Nor-EVs) and hypoxia-conditioned hMSC-derived EVs (Hypo-EVs) in neonatal rat cardiomyocytes (NRCMs) after angiotensin II (Ang II) stimulation and in a mouse model of transverse aortic constriction (TAC). RESULTS We demonstrate that Hypo-EVs exert an increased inhibitory effect on cardiac hypertrophy compared with Nor-EVs. Parkinson disease protein 7 (PARK7/DJ-1) is identify as a differential protein between Nor-EVs and Hypo-EVs by quantitative proteomics analysis. Results show that DJ-1, which is rich in Hypo-EVs, alleviates mitochondrial dysfunction and excessive mitochondrial reactive oxygen species (mtROS) production as an antioxidant. Mechanistic studies demonstrate for the first time that DJ-1 may suppress cardiac hypertrophy by inhibiting the activity of proteasome subunit beta type 10 (PSMB10) through a direct physical interaction. This interaction can inhibit angiotensin II type 1 receptor (AT1R)-mediated signaling pathways resulting in cardiac hypertrophy through alleviating ubiquitination degradation of AT1R-associated protein (ATRAP). CONCLUSIONS When taken together, our study suggests that Hypo-EVs have significant potential as a novel therapeutic agent for the treatment of cardiac hypertrophy.
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21
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Shi S, Jiang P. Therapeutic potentials of modulating autophagy in pathological cardiac hypertrophy. Biomed Pharmacother 2022; 156:113967. [DOI: 10.1016/j.biopha.2022.113967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
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22
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Gu YH, Ren KW, Wang Y, Wang SH, Yu XH, Xu LW, Li HH, Bi HL. Administration of USP7 inhibitor P22077 inhibited cardiac hypertrophy and remodeling in Ang II-induced hypertensive mice. Front Pharmacol 2022; 13:1021361. [PMID: 36386139 PMCID: PMC9640964 DOI: 10.3389/fphar.2022.1021361] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/10/2022] [Indexed: 09/12/2023] Open
Abstract
Hypertension is one of the common causes of pathological cardiac hypertrophy and a major risk for morbidity and mortality of cardiovascular diseases worldwide. Ubiquitin-Specific Protease 7 (USP7), the first identified deubiquitinating enzymes, participated in a variety of biological processes, such as cell proliferation, DNA damage response, tumourigenesis, and apoptosis. However, its role and mechanism in cardiac remodeling remain unclear. Here, our data indicated that USP7 expression was increased during Ang II-induced cardiac hypertrophy and remodeling in mice and humans with heart failure, while the administration of its inhibitor p22077 attenuated cardiac hypertrophy, cardiac fibrosis, inflammation, and oxidase stress. Mechanistically, the administration of p22077 inhibited the multiple signaling pathways, including AKT/ERK, TGF-β/SMAD2/Collagen I/Collagen III, NF-κB/NLRP3, and NAPDH oxidases (NOX2 and NOX4). Taken together, these findings demonstrate that USP7 may be a new therapeutic target for hypertrophic remodeling and HF.
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Affiliation(s)
- Yu-Hui Gu
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Kai-Wen Ren
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yu Wang
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Shi-Hao Wang
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiao-Hong Yu
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Li-Wen Xu
- Department of Obstetrics, Dalian Maternal and Child Health Institute, Dalian, China
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Hai-Lian Bi
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
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23
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Li H, Zhang L, Zhang L, Han R. Autophagy in striated muscle diseases. Front Cardiovasc Med 2022; 9:1000067. [PMID: 36312227 PMCID: PMC9606591 DOI: 10.3389/fcvm.2022.1000067] [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: 07/21/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Impaired biomolecules and cellular organelles are gradually built up during the development and aging of organisms, and this deteriorating process is expedited under stress conditions. As a major lysosome-mediated catabolic process, autophagy has evolved to eradicate these damaged cellular components and recycle nutrients to restore cellular homeostasis and fitness. The autophagic activities are altered under various disease conditions such as ischemia-reperfusion cardiac injury, sarcopenia, and genetic myopathies, which impact multiple cellular processes related to cellular growth and survival in cardiac and skeletal muscles. Thus, autophagy has been the focus for therapeutic development to treat these muscle diseases. To develop the specific and effective interventions targeting autophagy, it is essential to understand the molecular mechanisms by which autophagy is altered in heart and skeletal muscle disorders. Herein, we summarize how autophagy alterations are linked to cardiac and skeletal muscle defects and how these alterations occur. We further discuss potential pharmacological and genetic interventions to regulate autophagy activities and their applications in cardiac and skeletal muscle diseases.
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Affiliation(s)
- Haiwen Li
- Department of Surgery, Davis Heart and Lung Research Institute, Biomedical Sciences Graduate Program, Biophysics Graduate Program, The Ohio State University Wexner Medical Center, Columbus, OH, United States,*Correspondence: Haiwen Li,
| | - Lingqiang Zhang
- State Key Laboratory of Proteomics, National Center of Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Lei Zhang
- Department of Anatomy and Neurobiology, Shanghai Yangzhi Rehabilitation Hospital, Shanghai Sunshine Rehabilitation Center, School of Medicine, Tongji University, Shanghai, China
| | - Renzhi Han
- Department of Surgery, Davis Heart and Lung Research Institute, Biomedical Sciences Graduate Program, Biophysics Graduate Program, The Ohio State University Wexner Medical Center, Columbus, OH, United States,Renzhi Han,
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24
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Liang W, Gustafsson ÅB. Recent Insights into the Role of Autophagy in the Heart. CURRENT OPINION IN PHYSIOLOGY 2022. [DOI: 10.1016/j.cophys.2022.100593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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25
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Dai C, Luo W, Chen Y, Shen S, Wang Z, Chen R, Wang J, Chattipakorn N, Huang W, Liang G. Tabersonine attenuates Angiotensin II-induced cardiac remodeling and dysfunction through targeting TAK1 and inhibiting TAK1-mediated cardiac inflammation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 103:154238. [PMID: 35696800 DOI: 10.1016/j.phymed.2022.154238] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/19/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Angiotensin II (Ang II)-induced cardiac inflammation contribute to pathological cardiac remodeling and hypertensive heart failure (HF). Tabersonine (Tab) is an indole alkaloid mainly isolated from Catharanthus roseus and exhibits anti-inflammatory activity in various systems. However, the role of Tab in hypertensive HF and its molecular targets remains unknown. HYPOTHESIS/PURPOSE We aimed to investigate potential cardioprotective effects and mechanism of Tab against Ang II-induced cardiac injuries. METHODS C57BL/6 mice were administered Ang II (at 1000 ng/kg/min) by micro-osmotic pump infusion for 30 days to develop hypertensive HF. Tab at 20 and 40 mg/kg/day was administered during the last 2 weeks to elucidate the cardioprotective properties. Cultured cardiomyocyte-like H9c2 cells and rat primary cardiomyocytes were used for mechanistic studies of Tab. RESULTS We demonstrate for the first time that Tab provides protection against Ang II-induced cardiac dysfunction in mice, associated with reduced cardiac inflammation and fibrosis. Mechanistically, we show that Tab may interacts with TAK1 to inhibit Ang II-induced TAK1 ubiquitination and phosphorylation. Disruption of TAK1 activation by Tab blocked downstream NF-κB and JNK/P38 MAPK signaling activation and decreased cardiac inflammation and fibrosis both in vitro and in vivo. TAK1 knockdown also blocked Ang II-induced cardiomyocytes injuries and prevented the innately pharmacological effects of Tab. CONCLUSION Our results indicate that Tab protects hearts against Ang II-mediated injuries through targeting TAK1 and inhibiting TAK1-mediated inflammatory cascade and response. Thus, Tab may be a potential therapeutic candidate for hypertensive HF.
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Affiliation(s)
- Chengyi Dai
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Wu Luo
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yanghao Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Siyuan Shen
- Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Zhe Wang
- Department of Pharmacy, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Ruijie Chen
- Department of Pharmacy, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Jun Wang
- Department of Cardiology, Wenzhou Central Hospital and Affiliated Dingli Clinical Institute, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Weijian Huang
- Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China.
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26
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Zhou Y, Wu P, Feng L, Jiang WD, Liu Y, Peng Y, Kuang SY, Tang L, Li SW, Zhou XQ. Improvement of nutritional value and sensory quality by promoting protein deposition and muscle fiber growth in grass carp muscle (Ctenopharyngodon idella): the effect of cinnamaldehyde. Food Chem 2022; 399:133799. [DOI: 10.1016/j.foodchem.2022.133799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/25/2022] [Accepted: 07/25/2022] [Indexed: 11/25/2022]
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Degradation Mechanism of Autophagy-Related Proteins and Research Progress. Int J Mol Sci 2022; 23:ijms23137301. [PMID: 35806307 PMCID: PMC9266641 DOI: 10.3390/ijms23137301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 12/21/2022] Open
Abstract
In all eukaryotes, autophagy is the main pathway for nutrient recycling, which encapsulates parts of the cytoplasm and organelles in double-membrane vesicles, and then fuses with lysosomes/vacuoles to degrade them. Autophagy is a highly dynamic and relatively complex process influenced by multiple factors. Under normal growth conditions, it is maintained at basal levels. However, when plants are subjected to biotic and abiotic stresses, such as pathogens, drought, waterlogging, nutrient deficiencies, etc., autophagy is activated to help cells to survive under stress conditions. At present, the regulation of autophagy is mainly reflected in hormones, second messengers, post-transcriptional regulation, and protein post-translational modification. In recent years, the degradation mechanism of autophagy-related proteins has attracted much attention. In this review, we have summarized how autophagy-related proteins are degraded in yeast, animals, and plants, which will help us to have a more comprehensive and systematic understanding of the regulation mechanisms of autophagy. Moreover, research progress on the degradation of autophagy-related proteins in plants has been discussed.
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28
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Xie X, Shen TT, Bi HL, Su ZL, Liao ZQ, Zhang Y, Shi L, Xia YL. Melatonin inhibits angiotensin II-induced atrial fibrillation through preventing degradation of Ang II Type I Receptor-Associated Protein (ATRAP). Biochem Pharmacol 2022; 202:115146. [PMID: 35710020 DOI: 10.1016/j.bcp.2022.115146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 05/18/2022] [Accepted: 06/08/2022] [Indexed: 11/29/2022]
Abstract
Angiotensin II (Ang II) induced Atrial fibrillation (AF) often accompanied with reduced ATRAP which is a negative modulator of Ang II type 1 receptor (AT1R). Melatonin can protect against AF, but the underlying molecular mechanism remains poorly understood. In this study, Ang II was used to induce AF, and AF inducibility and duration were documented telemetrically. Ang II-infused mice had a higher AF incidence, which was associated with atrial fibrosis, inflammation, and oxidative stress. Melatonin partially inhibited these effects, and enforced expression of siRNA-ATRAP in atria counteracted the beneficial role of melatonin. Specifically, melatonin inhibited expression of Ang II-induced proteasome and immunoproteasome subunits β2, β2i, β5, and β5i as well as their corresponding trypsin-like and chymotrypsin-like activities and blocked ATRAP degradation. In turn, this inhibited AT1R-mediated NF-κB signaling, transforming growth factor (TGF)-β1/Smad signaling in the atria, and thereby affected atrial remodeling and AF. Melatonin receptor inhibition by the chemical inhibitor luzindole partially inhibited the inhibitory effects of melatonin on proteasome activity and also Ang II-induced pathological changes in the atria. Overall, our study demonstrates that melatonin protects against Ang II-induced AF by inhibiting proteasome activity and stabilizing ATRAP expression, and these effects are partially dependent on melatonin receptor activation.
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Affiliation(s)
- Xin Xie
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116021, China
| | - Ting-Ting Shen
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Hai-Lian Bi
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116021, China
| | - Zhuo-Lin Su
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116021, China
| | - Zi-Qi Liao
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116021, China
| | - Ying Zhang
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116021, China
| | - Lei Shi
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China.
| | - Yun-Long Xia
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116021, China.
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29
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Li X, Zhang Y, Zhao Y, Zhou Y, Han Q, Yang Y, Zhang L, Shi L, Jin X, Zhang R, Gao H, Xue G, Li D, Zhang ZR, Lu Y, Yang B, Pan Z. Cullin-associated and neddylation-dissociated 1 protein (CAND1) governs cardiac hypertrophy and heart failure partially through regulating calcineurin degradation. Pharmacol Res 2022; 182:106284. [PMID: 35661710 DOI: 10.1016/j.phrs.2022.106284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/16/2022] [Accepted: 05/29/2022] [Indexed: 11/19/2022]
Abstract
Pathological cardiac hypertrophy is a process characterized by significant disturbance of protein turnover. Cullin-associated and Neddylation-dissociated 1 (CAND1) acts as a coordinator to modulate substrate protein degradation by promoting the formation of specific cullin-based ubiquitin ligase 3 complex in response to substrate accumulation, which thereby facilitate the maintaining of normal protein homeostasis. Accumulation of calcineurin is critical in the pathogenesis of cardiac hypertrophy and heart failure. However, whether CAND1 titrates the degradation of hypertrophy related protein eg. calcineurin and regulates cardiac hypertrophy remains unknown. Therefore, we aim to explore the role of CAND1 in cardiac hypertrophy and heart failure and the underlying molecular mechanism. Here, we found that the protein level of CAND1 was increased in cardiac tissues from heart failure (HF) patients and TAC mice, whereas the mRNA level did not change. CAND1-KO+/- aggravated TAC-induced cardiac hypertrophic phenotypes; in contrast, CAND1-Tg attenuated the maladaptive cardiac remodeling. At the molecular level, CAND1 overexpression downregulated, whereas CAND1-KO+/- or knockdown upregulated calcineurin expression at both in vivo and in vitro conditions. Mechanistically, CAND1 overexpression favored the assembly of Cul1/atrogin1/calcineurin complex and rendered the ubiquitination and degradation of calcineurin. Notably, CAND1 deficiency-induced hypertrophic phenotypes were partially rescued by knockdown of calcineurin, and application of exogenous CAND1 prevented TAC-induced cardiac hypertrophy. Taken together, our findings demonstrate that CAND1 exerts a protective effect against cardiac hypertrophy and heart failure partially by inducing the degradation of calcineurin.
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Affiliation(s)
- Xingda Li
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Yang Zhang
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Yue Zhao
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Yang Zhou
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Qilong Han
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Ying Yang
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Lingmin Zhang
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Ling Shi
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Xuexin Jin
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Ruixin Zhang
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Haiyu Gao
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Genlong Xue
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Desheng Li
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China
| | - Zhi-Ren Zhang
- Institute of Metabolic Disease, Heilongjiang Academy of Medical Science, Harbin, China; Departments of Cardiology and Clinical Pharmacy, Harbin Medical University Cancer Hospital, Heilongjiang Academy of Medical Science, Harbin, China; NHC Key Laboratory of Cell Transplantation, Harbin Medical University, Harbin, China
| | - Yanjie Lu
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China; Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, 2019RU070, China
| | - Baofeng Yang
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China; Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, 2019RU070, China.
| | - Zhenwei Pan
- Department of Pharmacology, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin 150086, China; Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, 2019RU070, China; NHC Key Laboratory of Cell Transplantation, Harbin Medical University, Harbin, China.
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Fletcher E, Wiggs M, Greathouse KL, Morgan G, Gordon PM. Impaired proteostasis in obese skeletal muscle relates to altered immunoproteasome activity. Appl Physiol Nutr Metab 2022; 47:555-564. [PMID: 35148206 DOI: 10.1139/apnm-2021-0764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Obesity-associated inflammation and/or oxidative stress can damage intramuscular proteins and jeopardize muscle integrity. The immunoproteasome (iProt) is vital to remove oxidatively modified proteins, but this function may be compromised with obesity. We sought to elucidate whether diet-induced obesity alters intramuscular iProt content and activity in mice to identify a possible mechanism for impaired muscle proteostasis in the obese state. Total proteasome content and activity and estimates of muscle oxidative damage, inflammation, muscle mass and strength were also assessed. Twenty-three male, 5-week-old C57BL/6J mice were fed a high-fat, high-sucrose (HFS; 45% kcal fat, 17% sucrose, n = 12) or low-fat, low-sucrose (LFS; 10% kcal fat, 0% sucrose, n = 11) diet for 12 weeks. Strength was assessed via a weightlifting test. Despite no change in pro-inflammatory cytokines (P > 0.05), oxidative protein damage was elevated within the gastrocnemius (P = 0.036) and tibialis anterior (P = 0.033) muscles of HFS-fed mice. Intramuscular protein damage coincided with reduced iProt and total proteasome activity (P < 0.05), and reductions in relative muscle mass (P < 0.001). Therefore, proteasome dysregulation occurs in obese muscle and may be a critical link in muscle oxidative stress. Novelty: Our results show for the first time that immunoproteasome and total proteasome function is significantly reduced within obese muscle. Visceral fat mass is a significant predictor of diminished proteasome activity in skeletal muscle. Proteasome function is inversely correlated with an intramuscular accumulation of oxidatively damaged proteins.
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Affiliation(s)
- Emma Fletcher
- Department of Health, Human Performance and Recreation, Baylor University, Waco, TX 76798, USA
| | - Michael Wiggs
- Department of Health, Human Performance and Recreation, Baylor University, Waco, TX 76798, USA
| | - K Leigh Greathouse
- Department of Biology, Baylor University, Waco, TX 76798, USA.,Department of Human Sciences and Design, Baylor University, Waco, TX 76798, USA
| | - Grant Morgan
- Department of Educational Psychology, Baylor University, Waco, TX 76798, USA
| | - Paul M Gordon
- Department of Health, Human Performance and Recreation, Baylor University, Waco, TX 76798, USA
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Guo T, Liu C, Yang C, Wu J, Su P, Chen J. Immunoproteasome subunit PSMB8 regulates microglia-mediated neuroinflammation upon manganese exposure by PERK signaling. Food Chem Toxicol 2022; 163:112951. [DOI: 10.1016/j.fct.2022.112951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/09/2022] [Accepted: 03/19/2022] [Indexed: 01/04/2023]
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Chen H, Zhou J, Chen H, Liang J, Xie C, Gu X, Wang R, Mao Z, Zhang Y, Li Q, Zuo G, Miao D, Jin J. Bmi-1-RING1B prevents GATA4-dependent senescence-associated pathological cardiac hypertrophy by promoting autophagic degradation of GATA4. Clin Transl Med 2022; 12:e574. [PMID: 35390228 PMCID: PMC8989148 DOI: 10.1002/ctm2.574] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 01/05/2023] Open
Abstract
AIMS Senescence-associated pathological cardiac hypertrophy (SA-PCH) is associated with upregulation of foetal genes, fibrosis, senescence-associated secretory phenotype (SASP), cardiac dysfunction and increased morbidity and mortality. Therefore, we conducted experiments to investigate whether GATA4 accumulation induces SA-PCH, and whether Bmi-1-RING1B promotes GATA4 ubiquitination and its selective autophagic degradation to prevent SA-PCH. METHODS AND RESULTS Bmi-1-deficient (Bmi-1-/- ), transgenic Bmi-1 overexpressing (Bmi-1Tg ) and wild-type (WT) mice were infused with angiotensin II (Ang II) to stimulate the development of SA-PCH. Through bioinformatics analysis with RNA sequencing data from cardiac tissues, we found that Bmi-1-RING1B and autophagy are negatively related to SA-PCH. Bmi-1 deficiency promoted GATA4-dependent SA-PCH by increasing GATA4 protein and hypertrophy-related molecules transcribed by GATA4 such as ANP and BNP. Bmi-1 deficiency stimulated NF-κB-p65-dependent SASP, leading to cardiac dysfunction, cardiomyocyte hypertrophy and senescence. Bmi-1 overexpression repressed GATA4-dependent SA-PCH. GATA4 degraded by Bmi-1 was mainly dependent on autophagy rather than proteasome. In human myocardium, p16 positively correlated with ANP and GATA4 and negatively correlated with LC3B, Bmi-1 and RING1B; GATA4 positively correlated with p62 and negatively correlated with Bmi-1 and LC3B. With increased p16 protein levels, ANP-, BNP- and GATA4-positive cells or areas increased; however, LC3B-positive cells or areas decreased in human myocardium. GATA4 is ubiquitinated after combining with Bmi-1-RING1B, which is then recognised by p62, is translocated to autophagosomes to form autophagolysosomes and degraded. Downregulated GATA4 ameliorated SA-PCH and cardiac dysfunction by reducing GATA4-dependent hypertrophy and SASP-related molecules. Bmi-1 combined with RING1B (residues 1-179) and C-terminus of GATA4 (residues 206-443 including zinc finger domains) through residues 1-95, including a RING-HC-finger. RING1B combined with C-terminus of GATA4 through the C-terminus (residues 180-336). Adeno-associated viral vector serotype 9 (AAV9)-cytomegalovirus (CMV)-Bmi-1-RING1B treatment significantly attenuated GATA4-dependent SA-PCH through promoting GATA4 autophagic degradation. CONCLUSIONS Bmi-1-RING1B maintained cardiac function and prevented SA-PCH by promoting selective autophagy for degrading GATA4. TRANSLATIONAL PERSPECTIVE AAV9-CMV-Bmi-1-RING1B could be used for translational gene therapy to ubiquitinate GATA4 and prevent GATA4-dependent SA-PCH. Also, the combined domains between Bmi-1-RING1B and GATA4 in aging cardiomyocytes could be therapeutic targets for identifying stapled peptides in clinical applications to promote the combination of Bmi-1-RING1B with GATA4 and the ubiquitination of GATA4 to prevent SA-PCH and heart failure. We found that degradation of cardiac GATA4 by Bmi-1 was mainly dependent on autophagy rather than proteasome, and autophagy agonists metformin and rapamycin could ameliorate the SA-PCH, suggesting that activation of autophagy with metformin or rapamycin could also be a promising method to prevent SA-PCH.
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Affiliation(s)
- Haiyun Chen
- The Research Center for AgingAffiliated Friendship Plastic Surgery Hospital of Nanjing Medical UniversityNanjingJiangsu210029China
| | - Jiawen Zhou
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
| | - Hongjie Chen
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
| | - Jialong Liang
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
| | - Chunfeng Xie
- Department of Nutrition and Food SafetySchool of Public HealthNanjing Medical UniversityNanjingJiangsu211166China
| | - Xin Gu
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
| | - Rong Wang
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
| | - Zhiyuan Mao
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
| | - Yongjie Zhang
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
| | - Qing Li
- Department of Science and TechnologyJiangsu Jiankang Vocational CollegeNanjingJiangsu210029China
| | - Guoping Zuo
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
| | - Dengshun Miao
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
- The Research Center for AgingAffiliated Friendship Plastic Surgery Hospital of Nanjing Medical UniversityNanjingJiangsu210029China
| | - Jianliang Jin
- Department of Human AnatomyResearch Centre for Bone and Stem CellsKey Laboratory for Aging & DiseaseThe State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjingJiangsu211166China
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Yang Y, Zhang K, Huang S, Chen W, Mao H, Ouyang X, Chen L, Li L. Apelin‐13/APJ induces cardiomyocyte hypertrophy by activating the Pannexin‐1/P2X7 axis and FAM134B‐dependent reticulophagy. J Cell Physiol 2022; 237:2230-2248. [DOI: 10.1002/jcp.30685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/16/2021] [Accepted: 01/11/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Yiyuan Yang
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Kai Zhang
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Shifang Huang
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Wei Chen
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Hui Mao
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Xueqian Ouyang
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Linxi Chen
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Lanfang Li
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
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Liao ZQ, Jiang YN, Su ZL, Bi HL, Li JT, Li CL, Yang XL, Zhang Y, Xie X. Rutaecarpine Inhibits Doxorubicin-Induced Oxidative Stress and Apoptosis by Activating AKT Signaling Pathway. Front Cardiovasc Med 2022; 8:809689. [PMID: 35071368 PMCID: PMC8766983 DOI: 10.3389/fcvm.2021.809689] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 11/23/2021] [Indexed: 11/13/2022] Open
Abstract
Patients with cancer who receive doxorubicin (DOX) treatment can experience cardiac dysfunction, which can finally develop into heart failure. Oxidative stress is considered the most important mechanism for DOX-mediated cardiotoxicity. Rutaecarpine (Rut), a quinazolinocarboline alkaloid extracted from Evodia rutaecarpa was shown to have a protective effect on cardiac disease. The purpose of this study is to investigate the role of Rut in DOX-induced cardiotoxicity and explore the underlying mechanism. Intravenous injection of DOX (5 mg/kg, once a week) in mice for 4 weeks was used to establish the cardiotoxic model. Echocardiography and pathological staining analysis were used to detect the changes in structure and function in the heart. Western blot and real-time PCR analysis were used to detect the molecular changes. In this study, we found that DOX time-dependently decreased cardiac function with few systemic side effects. Rut inhibited DOX-induced cardiac fibrosis, reduction in heart size, and decrease in heart function. DOX-induced reduction in superoxide dismutase (SOD) and glutathione (GSH), enhancement of malondialdehyde (MDA) was inhibited by Rut administration. Meanwhile, Rut inhibited DOX-induced apoptosis in the heart. Importantly, we further found that Rut activated AKT or nuclear factor erythroid 2-related factor 2 (Nrf-2) which further upregulated the antioxidant enzymes such as heme oxygenase-1 (HO-1) and GSH cysteine ligase modulatory subunit (GCLM) expression. AKT inhibitor (AKTi) partially inhibited Nrf-2, HO-1, and GCLM expression and abolished the protective role of Rut in DOX-induced cardiotoxicity. In conclusion, this study identified Rut as a potential therapeutic agent for treating DOX-induced cardiotoxicity by activating AKT.
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Affiliation(s)
- Zi-Qi Liao
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yi-Nong Jiang
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zhuo-Lin Su
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Hai-Lian Bi
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jia-Tian Li
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Cheng-Lin Li
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiao-Lei Yang
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Ying Zhang
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xin Xie
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
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Sheng Z, Xu J, Li F, Yuan Y, Peng X, Chen S, Zhou R, Huang W. The RING-domain E3 ubiquitin ligase RNF146 promotes cardiac hypertrophy by suppressing the LKB1/AMPK signaling pathway. Exp Cell Res 2022; 410:112954. [PMID: 34856161 DOI: 10.1016/j.yexcr.2021.112954] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/16/2021] [Accepted: 11/28/2021] [Indexed: 02/08/2023]
Abstract
The RING-domain E3 ubiquitin ligase RNF146 is an enzyme that plays an important role in ubiquitin-proteasomal protein degradation and participates in various pathophysiological processes. However, its role in cardiac hypertrophy is unclear. In the present work, thoracic transverse aortic constriction (TAC) was performed in transgenic mice with RNF146 knockout mice (KO) and wild-type mice, and neonatal rat cardiomyocytes (NRCMs) were subjected to angiotensin II (Ang II) stimulation to induce cardiac hypertrophy in vitro and in vivo. RNF146 expression was significantly increased in hypertrophied murine hearts and Ang II-stimulated NRCMs. RNF146-KO mice and knockdown of RNF146 NRCMs attenuated TAC- or Ang II-stimulated cardiac hypertrophy. Conversely, enforced expression of RNF146 aggravated these changes. Mechanistically, we found that RNF146 KO or knockdown increased the activation of the AMP-activated protein kinase (AMPK) pathway. Furthermore, we found that RNF146 KO or knockdown decreased ubiquitination of Liver kinase B1 (LKB1), which promoted the activation of the AMPK pathway in a dependent manner. In conclusion, RNF146 targets LKB1 protein for ubiquitin-proteasome degradation in cardiomyocytes and subsequently promotes cardiac hypertrophy by suppressing the activation of the AMPK signaling pathway.
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Affiliation(s)
- Zhiyong Sheng
- Department of Neurological Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Jianning Xu
- Department of Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Fuxing Li
- Department of Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Ying Yuan
- Department of Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Xiaogang Peng
- Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Shenjian Chen
- Department of Neurological Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Rui Zhou
- Department of Neurological Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Wei Huang
- Department of Neurological Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China.
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Chen H, Zhuo C, Zu A, Yuan S, Zhang H, Zhao J, Zheng L. Thymoquinone ameliorates pressure overload-induced cardiac hypertrophy by activating the AMPK signalling pathway. J Cell Mol Med 2021; 26:855-867. [PMID: 34953026 PMCID: PMC8817125 DOI: 10.1111/jcmm.17138] [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: 06/24/2021] [Revised: 11/25/2021] [Accepted: 12/07/2021] [Indexed: 11/28/2022] Open
Abstract
Prolonged pathological myocardial hypertrophy leads to end‐stage heart failure. Thymoquinone (TQ), a bioactive component extracted from Nigella sativa seeds, is extensively used in ethnomedicine to treat a broad spectrum of disorders. However, it remains unclear whether TQ protects the heart from pathological hypertrophy. This study was conducted to examine the potential utility of TQ for treatment of pathological cardiac hypertrophy and if so, to elucidate the underlying mechanisms. Male C57BL/6J mice underwent either transverse aortic constriction (TAC) or sham operation, followed by TQ treatment for six consecutive weeks. In vitro experiments consisted of neonatal rat cardiomyocytes (NRCMs) that were exposed to phenylephrine (PE) stimulation to induce cardiomyocyte hypertrophy. In this study, we observed that systemic administration of TQ preserved cardiac contractile function, and alleviated cardiac hypertrophy, fibrosis and oxidative stress in TAC‐challenged mice. The in vitro experiments showed that TQ treatment attenuated the PE‐induced hypertrophic response in NRCMs. Mechanistical experiments showed that supplementation of TQ induced reactivation of the AMP‐activated protein kinase (AMPK) with concomitant inhibition of ERK 1/2, p38 and JNK1/2 MAPK cascades. Furthermore, we demonstrated that compound C, an AMPK inhibitor, abolished the protective effects of TQ in in vivo and in vitro experiments. Altogether, our study disclosed that TQ provides protection against myocardial hypertrophy in an AMPK‐dependent manner and identified it as a promising agent for the treatment of myocardial hypertrophy.
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Affiliation(s)
- Heng Chen
- Department of Cardiology and Atrial Fibrillation Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Chengui Zhuo
- Department of Cardiology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Aohan Zu
- Department of Cardiology and Atrial Fibrillation Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Shuai Yuan
- Echocardiography and Vascular Ultrasound Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Han Zhang
- Department of Cardiology and Atrial Fibrillation Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jianqiang Zhao
- Department of Cardiology, The Fourth Affiliated Hospital, College of Medicine, Zhejiang University, Yiwu, China
| | - Liangrong Zheng
- Department of Cardiology and Atrial Fibrillation Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Oxidative distress in aging and age-related diseases: Spatiotemporal dysregulation of protein oxidation and degradation. Biochimie 2021; 195:114-134. [PMID: 34890732 DOI: 10.1016/j.biochi.2021.12.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/03/2021] [Accepted: 12/04/2021] [Indexed: 12/31/2022]
Abstract
The concept of oxidative distress had arisen from the assessment of cellular response to high concentrations of reactive species that result from an imbalance between oxidants and antioxidants and cause biomolecular damage. The intracellular distribution and flux of reactive species dramatically change in time and space contributing to the remodeling of the redox landscape and sensitivity of protein residues to oxidants. Here, we hypothesize that compromised spatiotemporal control of generation, conversions, and removal of reactive species underlies protein damage and dysfunction of protein degradation machineries. This leads to the accumulation of oxidatively damaged proteins resulted in an age-dependent decline in the organismal adaptability to oxidative stress. We highlight recent data obtained with the use of various cell cultures, animal models, and patients on irreversible and non-repairable oxidation of key redox-sensitive residues. Multiple reaction products include peptidyl hydroperoxides, alcohols, carbonyls, and carbamoyl moieties as well as Tyr-Tyr, Trp-Tyr, Trp-Trp, Tyr-Cys, His-Lys, His-Arg, and Tyr-Lys cross-links. These lead to protein fragmentation, misfolding, covalent cross-linking, oligomerization, aggregation, and ultimately, causing impaired protein function and turnover. 20S proteasome and autophagy-lysosome pathways are two major types of machinery for the degradation and elimination of oxidatively damaged proteins. Spatiotemporal dysregulation of these pathways under oxidative distress conditions is implicated in aging and age-related disorders such as neurodegenerative and cardiovascular diseases and diabetes. Future investigations in this field allow the discovery of new drugs to target components of dysregulated cell signaling and protein degradation machinery to combat aging and age-related chronic diseases.
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Blood Immunoproteasome Activity Is Regulated by Sex, Age and in Chronic Inflammatory Diseases: A First Population-Based Study. Cells 2021; 10:cells10123336. [PMID: 34943847 PMCID: PMC8699521 DOI: 10.3390/cells10123336] [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: 11/02/2021] [Revised: 11/21/2021] [Accepted: 11/25/2021] [Indexed: 11/30/2022] Open
Abstract
Dysfunction of the immunoproteasome has been implicated in cardiovascular and pulmonary diseases. Its potential as a biomarker for predicting disease stages, however, has not been investigated so far and population-based analyses on the impact of sex and age are missing. We here analyzed the activity of all six catalytic sites of the proteasome in isolated peripheral blood mononuclear cells obtained from 873 study participants of the KORA FF4 study using activity-based probes. The activity of the immuno- and standard proteasome correlated clearly with elevated leukocyte counts of study participants. Unexpectedly, we observed a strong sex dimorphism for proteasome activity with significantly lower immunoproteasome activity in women. In aging, almost all catalytic activities of the proteasome were activated in aged women while maintained upon aging in men. We also noted distinct sex-related activation patterns of standard and immunoproteasome active sites in chronic inflammatory diseases such as diabetes, cardiovascular diseases, asthma, or chronic obstructive pulmonary disease as determined by multiple linear regression modeling. Our data thus provides a conceptual framework for future analysis of immunoproteasome function as a bio-marker for chronic inflammatory disease development and progression.
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Cardiac-specific CGI-58 deficiency activates the ER stress pathway to promote heart failure in mice. Cell Death Dis 2021; 12:1003. [PMID: 34702801 PMCID: PMC8548506 DOI: 10.1038/s41419-021-04282-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 09/28/2021] [Accepted: 10/04/2021] [Indexed: 11/09/2022]
Abstract
Excess myocardial triacylglycerol accumulation (i.e., cardiac steatosis) impairs heart function, suggesting that enzymes promoting triacylglycerol metabolism exert essential regulatory effects on heart function. Comparative gene identification 58 (CGI-58) is a key enzyme that promotes the hydrolysis of triglycerides by activating adipose triglyceride lipase and plays a protective role in maintaining heart function. In this study, the effects of CGI-58 on heart function and the underlying mechanism were investigated using cardiac-specific CGI58-knockout mice (CGI-58cko mice). Echocardiography and pathological staining were performed to detect changes in the structure and function of the heart. Proteomic profiling, immunofluorescent staining, western blotting, and real-time PCR were used to evaluate molecular changes. In CGI-58cko mice, we detected cardiac hypertrophic remodeling and heart failure associated with excessive cardiac lipid accumulation, ROS production, and decreased expression of regulators of fatty acid metabolism. These changes were markedly attenuated in CGI-58cko mice injected with rAAV9-CGI58. A quantitative proteomics analysis revealed significant increases in the expression of ER stress-related proteins and decreases in proteins related to fatty acid and amino acid metabolism in the hearts of CGI-58cko mice. Furthermore, the inhibition of ER stress by the inhibitor 4-PBA improved mitochondrial dysfunction, reduced oxidative stress, and reversed cardiac remodeling and dysfunction in cultured cardiomyocytes or in CGI-58cko mice. Our results suggested that CGI-58 is essential for the maintenance of heart function by reducing lipid accumulation and ER stress in cardiomyocytes, providing a new therapeutic target for cardiac steatosis and dysfunction.
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Wang F, He Q, Gao Z, Redington AN. Atg5 knockdown induces age-dependent cardiomyopathy which can be rescued by repeated remote ischemic conditioning. Basic Res Cardiol 2021; 116:47. [PMID: 34319513 PMCID: PMC8316897 DOI: 10.1007/s00395-021-00888-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 07/15/2021] [Indexed: 01/02/2023]
Abstract
Altered autophagy is implicated in several human cardiovascular diseases. Remote ischemic conditioning (RIC) is cardioprotective in multiple cardiovascular injury models and modifies autophagy signaling, but its effect in cardiomyopathy induced by gene manipulation has not been reported. To investigate the cardiac effects of chronically reduced autophagy as a result of Atg5 knockdown and assess whether RIC can rescue the phenotype. Atg5 knockdown was induced with tamoxifen for 14 days in cardiac-specific conditional Atg5 flox mice. Autophagy proteins and cardiac function were evaluated by Western blot and echocardiography, respectively. RIC was induced by cyclical hindlimb ischemia and reperfusion using a tourniquet. RIC or sham procedure was performed daily during tamoxifen induction and, in separate experiments, chronically 3 times per week for 8 weeks. Cardiac responses were assessed by end of the study. Cardiac-specific knockdown of Atg5 reduced protein levels by 70% and was associated with a significant increase in mTOR, a reduction of LC3-II and increased upstream autophagy proteins including LC3-I, P62, and Beclin. The changes in biochemical markers were associated with development of an age-related cardiomyopathy during the 17-month follow-up indicated by increased heart weight body weight ratio, progressive decline in cardiac function, and premature death. RIC increased cardiac ATG5 and rescued some of the Atg5 knockdown-induced cardiomyopathy phenotype and associated morphological remodeling. We conclude that cardiac-specific Atg5 knockdown leads to the development of age-related cardiomyopathy. RIC reverses the molecular and structural phenotype when administered both acutely and chronically.
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Affiliation(s)
- Fangfei Wang
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Quan He
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Zhiqian Gao
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Andrew N Redington
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA.
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Zhang X, Zheng C, Gao Z, Chen H, Li K, Wang L, Zheng Y, Li C, Zhang H, Gong M, Zhang H, Meng Y. SLC7A11/xCT Prevents Cardiac Hypertrophy by Inhibiting Ferroptosis. Cardiovasc Drugs Ther 2021; 36:437-447. [PMID: 34259984 DOI: 10.1007/s10557-021-07220-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/12/2021] [Indexed: 12/22/2022]
Abstract
PURPOSE Systemic hypertension may induce adverse hypertrophy of the left cardiac ventricle. Pathological cardiac hypertrophy is a common cause of heart failure. We investigated the significance of ferroptosis repressor xCT in hypertrophic cardiomyopathy. METHODS xCT expression in angiotensin II (Ang II)-treated mouse hearts and rat cardiomyocytes was determined using qRT-PCR and Western blotting. Cardiac hypertrophy was induced by Ang II infusion in xCT knockout mice and their wildtype counterparts. Blood pressure, cardiac pump function, and pathological changes of cardiac remodeling were analyzed in these mice. Cell death, oxidative stress, and xCT-mediated ferroptosis were examined in Ang II-treated rat cardiomyocytes. RESULTS After Ang II infusion, xCT was downregulated at day 1 but upregulated at day 14 at both mRNA and protein levels. It was also decreased in Ang II-treated cardiomyocytes, but not in cardiofibroblasts. Inhibition of xCT exacerbated cardiomyocyte hypertrophy and boosted the levels of ferroptosis biomarkers Ptgs2, malondialdehyde, and reactive oxygen species induced by Ang II, while overexpression of xCT opposed these detrimental effects. Furthermore, knockout of xCT aggravated Ang II-mediated mouse cardiac fibrosis, hypertrophy, and dysfunction. Ferrostatin-1, a ferroptosis inhibitor, alleviated the exacerbation of cardiomyocyte hypertrophy caused by inhibiting xCT in cultured rat cells or ablating xCT in mice. CONCLUSION xCT acts as a suppressor in Ang II-mediated cardiac hypertrophy by blocking ferroptosis. Positive modulation of xCT may therefore represent a novel therapeutic approach against cardiac hypertrophic diseases.
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Affiliation(s)
- Xiyu Zhang
- Department of Pathology, Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular Diseases, Beijing Lab for Cardiovascular Precision Medicine, Capital Medical University, Beijing, China
| | - Cuiting Zheng
- Department of Pathology, Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular Diseases, Beijing Lab for Cardiovascular Precision Medicine, Capital Medical University, Beijing, China
| | - Zhenqiang Gao
- Department of Pathology, Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular Diseases, Beijing Lab for Cardiovascular Precision Medicine, Capital Medical University, Beijing, China
| | - Hongyu Chen
- State Key Laboratory of Medical Molecular Biology, Department of Physiology, Institute of Basic Medical Sciences and School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Kai Li
- State Key Laboratory of Medical Molecular Biology, Department of Physiology, Institute of Basic Medical Sciences and School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Lingling Wang
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yuanyuan Zheng
- Department of Pharmacology, Capital Medical University, Beijing, China
| | - Chunjia Li
- Department of Rheumatology, China-Japan Friendship Hospital, Beijing, China
| | - Hongjia Zhang
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Beijing Aortic Disease Center, Beijing Laboratory for Cardiovascular Precision Medicine, and Beijing Engineering Research Center of Vascular Prostheses, Capital Medical University, Beijing, China
| | - Ming Gong
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Beijing Aortic Disease Center, Beijing Laboratory for Cardiovascular Precision Medicine, and Beijing Engineering Research Center of Vascular Prostheses, Capital Medical University, Beijing, China
| | - Hongbing Zhang
- State Key Laboratory of Medical Molecular Biology, Department of Physiology, Institute of Basic Medical Sciences and School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
| | - Yan Meng
- Department of Pathology, Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular Diseases, Beijing Lab for Cardiovascular Precision Medicine, Capital Medical University, Beijing, China.
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Reddy SS, Agarwal H, Jaiswal A, Jagavelu K, Dikshit M, Barthwal MK. Macrophage p47 phox regulates pressure overload-induced left ventricular remodeling by modulating IL-4/STAT6/PPARγ signaling. Free Radic Biol Med 2021; 168:168-179. [PMID: 33736980 DOI: 10.1016/j.freeradbiomed.2021.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 11/19/2022]
Abstract
NADPH oxidase (Nox) mediates ROS production and contributes to cardiac remodeling. However, macrophage p47phox, a Nox subunit regulating cardiac remodeling, is unclear. We aimed to investigate the role of macrophage p47phox in hypertensive cardiac remodeling. Pressure-overload induced by Angiotensin II (AngII) for two weeks in young adult male p47phox deficient (KO) mice showed aggravated cardiac dysfunction and hypertrophy as indicated from echocardiographic and histological studies in comparison with wild-type littermates (WT). Additionally, LV of AngII-infused KO mice showed augmented interstitial fibrosis, collagen deposition and, myofibroblasts compared to AngII-infused WT mice. Moreover, these changes in AngII-infused KO mice correlated well with the gene analysis of hypertrophic and fibrotic markers. Similar results were also found in the transverse aortic constriction model. Further, AngII-infused KO mice showed elevated circulating immunokines and increased LV leukocytes infiltration and CD206+ macrophages compared to AngII-infused WT mice. Likewise, LV of AngII-infused KO mice showed upregulated mRNA expression of anti-inflammatory/pro-fibrotic M2 macrophage markers (Ym1, Arg-1) compared to AngII-infused WT mice. AngII and IL-4 treated bone marrow-derived macrophages (BMDMs) from KO mice showed upregulated M2 macrophage markers and STAT6 phosphorylation (Y641) compared to AngII and IL-4 treated WT BMDMs. These alterations were at least partly mediated by macrophage as bone marrow transplantation from KO mice into WT mice aggravated cardiac remodeling. Mechanistically, AngII-infused KO mice showed hyperactivated IL-4/STAT6/PPARγ signaling and downregulated SOCS3 expression compared to AngII-infused WT mice. Our studies show that macrophage p47phox limits anti-inflammatory signaling and extracellular matrix remodeling in response to pressure-overload.
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Affiliation(s)
- Sukka Santosh Reddy
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Heena Agarwal
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Anant Jaiswal
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Kumaravelu Jagavelu
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Madhu Dikshit
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Manoj Kumar Barthwal
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Ji L, Li L, Zhao Y, Liu S, Li J, Zhang J, Zhao Q, Wang S. Immunosubunit β5i Knockout Suppresses Neovascularization and Restores Autophagy in Retinal Neovascularization by Targeting ATG5 for Degradation. Invest Ophthalmol Vis Sci 2021; 61:30. [PMID: 33369639 PMCID: PMC7774061 DOI: 10.1167/iovs.61.14.30] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To investigate the functional role of immunoproteasome subunit β5i in pathologic retinal neovascularization (RNV) and its ability to link the immunoproteasome and autophagy. Methods Oxygen-induced retinopathy (OIR) was induced in wild-type (WT) and β5i knockout (KO) mouse pups on a C57BL/6J background. Proteasome catalytic subunit expression and proteasome activity were evaluated by quantitative real-time PCR (qPCR) and proteasome activity. Retinal vascular anatomy and neovascularization were characterized and quantified by retinal vascular flat-mount staining, fluorescence angiography, platelet endothelial cell adhesion molecule (PECAM) immunostaining, and hematoxylin and eosin staining. Correlation factors, including VEGF and ICAM-1, were detected by qPCR. Autophagy was examined by transmission electron microscopy (TEM). Autophagy biomarkers, including LC3, P62, ATG5, and ATG7, were measured by immunostaining and immunoblotting. The protein interaction between β5i and ATG5 was detected by immunoprecipitation. Results We observed that β5i had the greatest effect in WT OIR mice. Fundus fluorescence angiography, retinal flat-mount staining, and PECAM staining revealed that pathologic RNV decreased in β5i KO OIR mice compared with WT OIR mice. Concurrently, TEM, immunostaining, and immunoblotting showed that autophagy was induced in β5i KO OIR mice compared to WT OIR mice through increases in autophagosome and LC3 expression and a decrease in P62. Mechanistically, β5i interacted with ATG5 and promoted its degradation, leading to autophagy inhibition and pathogenic RNV. Conclusions This study identifies a functional role for β5i in RNV regulation. β5i deletion ameliorates RNV and restores autophagy by stabilizing ATG5. These results demonstrate the potential of β5i to serve as a bridge linking the immunoproteasome and autophagy.
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Affiliation(s)
- Liyang Ji
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Li Li
- Department of Ophthalmology, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, China
| | - Ying Zhao
- Department of Ophthalmology, Jianping County Hospital, Chaoyang, China
| | - Shengqiang Liu
- Department of Ophthalmology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jingmin Li
- Department of Ophthalmology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jinsong Zhang
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China.,Aier Excellence Eye Hospital, Shenyang, China
| | - Qi Zhao
- Department of Ophthalmology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Shuai Wang
- Department of Ophthalmology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
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Ljubojević-Holzer S, Kraler S, Djalinac N, Abdellatif M, Voglhuber J, Schipke J, Schmidt M, Kling KM, Franke GT, Herbst V, Zirlik A, von Lewinski D, Scherr D, Rainer PP, Kohlhaas M, Nickel A, Mühlfeld C, Maack C, Sedej S. Loss of autophagy protein ATG5 impairs cardiac capacity in mice and humans through diminishing mitochondrial abundance and disrupting Ca2+ cycling. Cardiovasc Res 2021; 118:1492-1505. [PMID: 33752242 PMCID: PMC9074988 DOI: 10.1093/cvr/cvab112] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022] Open
Abstract
Aims Autophagy protects against the development of cardiac hypertrophy and failure. While aberrant Ca2+ handling promotes myocardial remodelling and contributes to contractile dysfunction, the role of autophagy in maintaining Ca2+ homeostasis remains elusive. Here, we examined whether Atg5 deficiency-mediated autophagy promotes early changes in subcellular Ca2+ handling in ventricular cardiomyocytes, and whether those alterations associate with compromised cardiac reserve capacity, which commonly precedes the onset of heart failure. Methods and results RT–qPCR and immunoblotting demonstrated reduced Atg5 gene and protein expression and decreased abundancy of autophagy markers in hypertrophied and failing human hearts. The function of ATG5 was examined using cardiomyocyte-specific Atg5-knockout mice (Atg5−/−). Before manifesting cardiac dysfunction, Atg5−/− mice showed compromised cardiac reserve in response to β-adrenergic stimulation. Consequently, effort intolerance and maximal oxygen consumption were reduced during treadmill-based exercise tolerance testing. Mechanistically, cellular imaging revealed that Atg5 deprivation did not alter spatial and functional organization of intracellular Ca2+ stores or affect Ca2+ cycling in response to slow pacing or upon acute isoprenaline administration. However, high-frequency stimulation exposed stunted amplitude of Ca2+ transients, augmented nucleoplasmic Ca2+ load, and increased CaMKII activity, especially in the nuclear region of hypertrophied Atg5−/− cardiomyocytes. These changes in Ca2+ cycling were recapitulated in hypertrophied human cardiomyocytes. Finally, ultrastructural analysis revealed accumulation of mitochondria with reduced volume and size distribution, meanwhile functional measurements showed impaired redox balance in Atg5−/− cardiomyocytes, implying energetic unsustainability due to overcompensation of single mitochondria, particularly under increased workload. Conclusion Loss of cardiac Atg5-dependent autophagy reduces mitochondrial abundance and causes subtle alterations in subcellular Ca2+ cycling upon increased workload in mice. Autophagy-related impairment of Ca2+ handling is progressively worsened by β-adrenergic signalling in ventricular cardiomyocytes, thereby leading to energetic exhaustion and compromised cardiac reserve.
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Affiliation(s)
- Senka Ljubojević-Holzer
- Department of Cardiology, Medical University of Graz, Graz, Austria.,BioTechMed Graz, Graz, Austria
| | - Simon Kraler
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | - Nataša Djalinac
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | | | - Julia Voglhuber
- Department of Cardiology, Medical University of Graz, Graz, Austria.,BioTechMed Graz, Graz, Austria
| | - Julia Schipke
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
| | - Marlene Schmidt
- Department of Translational Research, Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany
| | - Katharina-Maria Kling
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
| | - Greta Therese Franke
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
| | - Viktoria Herbst
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | - Andreas Zirlik
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | | | - Daniel Scherr
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | - Peter P Rainer
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | - Michael Kohlhaas
- Department of Translational Research, Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany
| | - Alexander Nickel
- Department of Translational Research, Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany
| | - Christian Mühlfeld
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
| | - Christoph Maack
- Department of Translational Research, Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany
| | - Simon Sedej
- Department of Cardiology, Medical University of Graz, Graz, Austria.,BioTechMed Graz, Graz, Austria.,Faculty of Medicine, University of Maribor, Maribor, Slovenia
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45
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Liu S, Sun WC, Zhang YL, Lin QY, Liao JW, Song GR, Ma XL, Li HH, Zhang B. SOCS3 Negatively Regulates Cardiac Hypertrophy via Targeting GRP78-Mediated ER Stress During Pressure Overload. Front Cell Dev Biol 2021; 9:629932. [PMID: 33585485 PMCID: PMC7874011 DOI: 10.3389/fcell.2021.629932] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/06/2021] [Indexed: 01/17/2023] Open
Abstract
Pressure overload-induced hypertrophic remodeling is a critical pathological process leading to heart failure (HF). Suppressor of cytokine signaling-3 (SOCS3) has been demonstrated to protect against cardiac hypertrophy and dysfunction, but its mechanisms are largely unknown. Using primary cardiomyocytes and cardiac-specific SOCS3 knockout (SOCS3cko) or overexpression mice, we demonstrated that modulation of SOCS3 level influenced cardiomyocyte hypertrophy, apoptosis and cardiac dysfunction induced by hypertrophic stimuli. We found that glucose regulatory protein 78 (GRP78) was a direct target of SOCS3, and that overexpression of SOCS3 inhibited cardiomyocyte hypertrophy and apoptosis through promoting proteasomal degradation of GRP78, thereby inhibiting activation of endoplasmic reticulum (ER) stress and mitophagy in the heart. Thus, our results uncover SOCS3-GRP78-mediated ER stress as a novel mechanism in the transition from cardiac hypertrophy to HF induced by sustained pressure overload, and suggest that modulating this pathway may provide a new therapeutic approach for hypertrophic heart diseases.
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Affiliation(s)
- Shuang Liu
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Wen-Chang Sun
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Yun-Long Zhang
- Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Department of Emergency Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Qiu-Yue Lin
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jia-Wei Liao
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Gui-Rong Song
- Department of Health Statistics, School of Public Health, Dalian Medical University, Dalian, China
| | - Xiao-Lei Ma
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Hui-Hua Li
- Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Department of Emergency Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.,Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Bo Zhang
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
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Limanaqi F, Busceti CL, Biagioni F, Lazzeri G, Forte M, Schiavon S, Sciarretta S, Frati G, Fornai F. Cell Clearing Systems as Targets of Polyphenols in Viral Infections: Potential Implications for COVID-19 Pathogenesis. Antioxidants (Basel) 2020; 9:E1105. [PMID: 33182802 PMCID: PMC7697279 DOI: 10.3390/antiox9111105] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/29/2020] [Accepted: 11/08/2020] [Indexed: 02/06/2023] Open
Abstract
The novel coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has generated the ongoing coronavirus disease-2019 (COVID-19) pandemic, still with an uncertain outcome. Besides pneumonia and acute lung injury (ALI) or acute respiratory distress syndrome (ARDS), other features became evident in the context of COVID-19. These includes endothelial and coagulation dysfunction with disseminated intravascular coagulation (DIC), and multiple organ dysfunction syndrome (MODS), along with the occurrence of neurological alterations. The multi-system nature of such viral infection is a witness to the exploitation and impairment of ubiquitous subcellular and metabolic pathways for the sake of its life-cycle, ranging from host cell invasion, replication, transmission, up to a cytopathic effect and overt systemic inflammation. In this frame, alterations in cell-clearing systems of the host are emerging as a hallmark in the pathogenesis of various respiratory viruses, including SARS-CoV-2. Indeed, exploitation of the autophagy and proteasome pathways might contribute not only to the replication of the virus at the site of infection but also to the spreading of either mature virions or inflammatory mediators at both cellular and multisystem levels. In this frame, besides a pharmacological therapy, many researchers are wondering if some non-pharmacological substances might counteract or positively modulate the course of the infection. The pharmacological properties of natural compounds have gained increasing attention in the field of alternative and adjunct therapeutic approaches to several diseases. In particular, several naturally-occurring herbal compounds (mostly polyphenols) are reported to produce widespread antiviral, anti-inflammatory, and anti-oxidant effects while acting as autophagy and (immuno)-proteasome modulators. This article attempts to bridge the perturbation of autophagy and proteasome pathways with the potentially beneficial effects of specific phytochemicals and flavonoids in viral infections, with a focus on the multisystem SARS-CoV-2 infection.
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Affiliation(s)
- Fiona Limanaqi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Roma 55, 56126 Pisa, Italy; (F.L.); (G.L.)
| | - Carla Letizia Busceti
- I.R.C.C.S. Neuromed Pozzilli, Via Atinense, 18, 86077 Pozzilli, Italy (F.B.); (M.F.); (S.S.); (G.F.)
| | - Francesca Biagioni
- I.R.C.C.S. Neuromed Pozzilli, Via Atinense, 18, 86077 Pozzilli, Italy (F.B.); (M.F.); (S.S.); (G.F.)
| | - Gloria Lazzeri
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Roma 55, 56126 Pisa, Italy; (F.L.); (G.L.)
| | - Maurizio Forte
- I.R.C.C.S. Neuromed Pozzilli, Via Atinense, 18, 86077 Pozzilli, Italy (F.B.); (M.F.); (S.S.); (G.F.)
| | - Sonia Schiavon
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, 40100 Latina, Italy;
| | - Sebastiano Sciarretta
- I.R.C.C.S. Neuromed Pozzilli, Via Atinense, 18, 86077 Pozzilli, Italy (F.B.); (M.F.); (S.S.); (G.F.)
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, 40100 Latina, Italy;
| | - Giacomo Frati
- I.R.C.C.S. Neuromed Pozzilli, Via Atinense, 18, 86077 Pozzilli, Italy (F.B.); (M.F.); (S.S.); (G.F.)
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, 40100 Latina, Italy;
| | - Francesco Fornai
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Roma 55, 56126 Pisa, Italy; (F.L.); (G.L.)
- I.R.C.C.S. Neuromed Pozzilli, Via Atinense, 18, 86077 Pozzilli, Italy (F.B.); (M.F.); (S.S.); (G.F.)
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Liao J, An X, Yang X, Lin QY, Liu S, Xie Y, Bai J, Xia YL, Li HH. Deficiency of LMP10 Attenuates Diet-Induced Atherosclerosis by Inhibiting Macrophage Polarization and Inflammation in Apolipoprotein E Deficient Mice. Front Cell Dev Biol 2020; 8:592048. [PMID: 33195259 PMCID: PMC7644912 DOI: 10.3389/fcell.2020.592048] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/05/2020] [Indexed: 12/22/2022] Open
Abstract
Macrophage polarization and inflammation are key factors for the onset and progression of atherosclerosis. The immunoproteasome complex consists of three inducible catalytic subunits (LMP2, LMP10, and LMP7) that play a critical role in the regulation of these risk factors. We recently demonstrated that the LMP7 subunit promotes diet-induced atherosclerosis via inhibition of MERTK-mediated efferocytosis. Here, we explored the role of another subunit of LMP10 in the disease process, using ApoE knockout (ko) mice fed on an atherogenic diet (ATD) containing 0.5% cholesterol and 20% fat for 8 weeks as an in vivo atherosclerosis model. We observed that ATD significantly upregulated LMP10 expression in aortic lesions, which were primarily co-localized with plaque macrophages. Conversely, deletion of LMP10 markedly attenuated atherosclerotic lesion area, CD68+ macrophage accumulation, and necrotic core expansion in the plaques, but did not change plasma metabolic parameters, lesional SM22α+ smooth muscle cells, or collagen content. Myeloid-specific deletion of LMP10 by bone marrow transplantation resulted in similar phenotypes. Furthermore, deletion of LMP10 remarkably reduced aortic macrophage infiltration and increased M2/M1 ratio, accompanied by decreased expression of pro-inflammatory M1 cytokines (MCP-1, IL-1, and IL-6) and increased expression of anti-inflammatory M2 cytokines (IL-4 and IL-10). In addition, we confirmed in cultured macrophages that LMP10 deletion blunted macrophage polarization and inflammation during ox-LDL-induced foam cell formation in vitro, which was associated with decreased IκBα degradation and NF-κB activation. Our results show that the immunoproteasome subunit LMP10 promoted diet-induced atherosclerosis in ApoE ko mice possibly through regulation of NF-κB-mediated macrophage polarization and inflammation. Targeting LMP10 may represent a new therapeutic approach for atherosclerosis.
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Affiliation(s)
- Jiawei Liao
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiangbo An
- Department of Interventional Therapy, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiaolei Yang
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qiu-Yue Lin
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Shuang Liu
- Department of Occupational and Environmental Health, School of Public Health, Dalian Medical University, Dalian, China
| | - Yunpeng Xie
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jie Bai
- Department of Occupational and Environmental Health, School of Public Health, Dalian Medical University, Dalian, China
| | - Yun-Long Xia
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Hui-Hua Li
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China.,Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Department of Emergency Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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Limanaqi F, Biagioni F, Mastroiacovo F, Polzella M, Lazzeri G, Fornai F. Merging the Multi-Target Effects of Phytochemicals in Neurodegeneration: From Oxidative Stress to Protein Aggregation and Inflammation. Antioxidants (Basel) 2020; 9:antiox9101022. [PMID: 33092300 PMCID: PMC7589770 DOI: 10.3390/antiox9101022] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 02/08/2023] Open
Abstract
Wide experimental evidence has been provided in the last decade concerning the neuroprotective effects of phytochemicals in a variety of neurodegenerative disorders. Generally, the neuroprotective effects of bioactive compounds belonging to different phytochemical classes are attributed to antioxidant, anti-aggregation, and anti-inflammatory activity along with the restoration of mitochondrial homeostasis and targeting alterations of cell-clearing systems. Far from being independent, these multi-target effects represent interconnected events that are commonly implicated in the pathogenesis of most neurodegenerative diseases, independently of etiology, nosography, and the specific misfolded proteins being involved. Nonetheless, the increasing amount of data applying to a variety of neurodegenerative disorders joined with the multiple effects exerted by the wide variety of plant-derived neuroprotective agents may rather confound the reader. The present review is an attempt to provide a general guideline about the most relevant mechanisms through which naturally occurring agents may counteract neurodegeneration. With such an aim, we focus on some popular phytochemical classes and bioactive compounds as representative examples to design a sort of main highway aimed at deciphering the most relevant protective mechanisms which make phytochemicals potentially useful in counteracting neurodegeneration. In this frame, we emphasize the potential role of the cell-clearing machinery as a kernel in the antioxidant, anti-aggregation, anti-inflammatory, and mitochondrial protecting effects of phytochemicals.
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Affiliation(s)
- Fiona Limanaqi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Roma 55, 56126 Pisa, Italy;
| | - Francesca Biagioni
- Istituto di Ricovero e Cura a Carattere Scientifico Neuromed, Via Atinense 18, 86077 Pozzilli, Italy; (F.B.); (F.M.)
| | - Federica Mastroiacovo
- Istituto di Ricovero e Cura a Carattere Scientifico Neuromed, Via Atinense 18, 86077 Pozzilli, Italy; (F.B.); (F.M.)
| | - Maico Polzella
- Aliveda Laboratories, Viale Karol Wojtyla 19, 56042 Crespina Lorenzana, Italy;
| | - Gloria Lazzeri
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Roma 55, 56126 Pisa, Italy;
- Correspondence: (G.L.); (F.F.)
| | - Francesco Fornai
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Roma 55, 56126 Pisa, Italy;
- Istituto di Ricovero e Cura a Carattere Scientifico Neuromed, Via Atinense 18, 86077 Pozzilli, Italy; (F.B.); (F.M.)
- Correspondence: (G.L.); (F.F.)
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Zheng RH, Zhang WW, Ji YN, Bai XJ, Yan CP, Wang J, Bai F, Zhao ZQ. Exogenous supplement of glucagon like peptide-1 protects the heart against aortic banding induced myocardial fibrosis and dysfunction through inhibiting mTOR/p70S6K signaling and promoting autophagy. Eur J Pharmacol 2020; 883:173318. [PMID: 32621911 DOI: 10.1016/j.ejphar.2020.173318] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 12/16/2022]
Abstract
Mammalian target of rapamycin (mTOR) and a ribosomal protein S6 kinase (p70S6K) mediate tissue fibrosis and negatively regulate autophagy. This study aims to investigate whether glucagon-like peptide-1 (GLP-1) analog liraglutide protects the heart against aortic banding-induced cardiac fibrosis and dysfunction through inhibiting mTOR/p70S6K signaling and promoting autophagy activity. Male SD rats were randomly divided into four groups (n = 6/each group): sham operated control; abdominal aortic constriction (AAC); liraglutide treatment during AAC (0.3 mg/kg, injected subcutaneously twice daily); rapamycin treatment during AAC (0.2 mg/kg/day, administered by gastric gavage). Relative to the animals with AAC on week 16, liraglutide treatment significantly reduced heart/body weight ratio, inhibited cardiomyocyte hypertrophy, and augmented plasma GLP-1 level and tissue GLP-1 receptor expression. Phosphorylation of mTOR/p70S6K, populations of myofibroblasts and synthesis of collagen I/III in the myocardium were simultaneously inhibited. Furthermore, autophagy regulating proteins: LC3-II/LC3-I ratio and Beclin-1 were upregulated, and p62 was downregulated by liraglutide. Compared with liraglutide group, treatment with rapamycin, a specific inhibitor of mTOR, compatibly augmented GLP-1 receptor level, inhibited phosphorylation of mTOR/p70S6K and expression of p62 as well as increased level of LC3-II/LC3-I ratio and Beclin-1, suggesting that there is an interaction between GLP-1 and mTOR/p70S6K signaling in the regulation of autophagy. In line with these modifications, treatment with liraglutide and rapamycin significantly reduced perivascular/interstitial fibrosis, and preserved systolic/diastolic function. These results suggest that the inhibitory effects of liraglutide on cardiac fibrosis and dysfunction are potentially mediated by inhibiting mTOR/p70S6K signaling and enhancing autophagy activity.
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Affiliation(s)
- Rong-Hua Zheng
- Key Laboratory of Cellular Physiology of Ministry of Education and Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China; Department of Medicine, Linfen Vocational and Technical College, Linfen, Shanxi, China
| | - Wei-Wei Zhang
- Key Laboratory of Cellular Physiology of Ministry of Education and Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Ye-Nan Ji
- Key Laboratory of Cellular Physiology of Ministry of Education and Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiao-Jie Bai
- Key Laboratory of Cellular Physiology of Ministry of Education and Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Cai-Ping Yan
- Key Laboratory of Cellular Physiology of Ministry of Education and Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Jin Wang
- Key Laboratory of Cellular Physiology of Ministry of Education and Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Feng Bai
- Key Laboratory of Cellular Physiology of Ministry of Education and Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Zhi-Qing Zhao
- Key Laboratory of Cellular Physiology of Ministry of Education and Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China; Basic Biomedical Sciences, Mercer University School of Medicine, Savannah, GA, USA.
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Lin YB, Huang DJ, Huang HL, Chen DX, Huang JH. Sophocarpine ameliorates cardiac hypertrophy through activation of autophagic responses. Biosci Biotechnol Biochem 2020; 84:2054-2061. [PMID: 32544026 DOI: 10.1080/09168451.2020.1780111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Mounting evidences indicate that autophagy is an essential homeostatic mechanism to maintain the global cardiac structure function. Sophocarpine (SOP), a major bioactive compound derived from the natural plant Sophora flavescens. However, the role of SOP in cardiac hypertrophy remain to be fully elucidated. In the present study, we tested the hypothesis that SOP protects against Ang II-induced cardiac hypertrophy by mediating the regulation of autophagy. The results demonstrated that SOP attenuated the Ang II-induced cardiac hypertrophy, as assessed by measurements of echocardiography parameters, the ratios of heart weight/body weight and left ventricle weight/body weight, histopathological staining, cross-sectional cardiomyocyte area, and the expression levels of cardiac hypertrophic markers. The anti-hypertrophic effect of SOP was mediated by activating autophagy-related pathway, as revealed by reversal of the increased autophagy marker protein expression. These findings reveal a novel mechanism of SOP attenuating cardiac hypertrophy via activating autophagy-related signaling pathways.
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Affiliation(s)
- Yue-Bao Lin
- Department of General Medicine, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
| | - Dong-Jian Huang
- Department of Intensive Care Unit, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
| | - Huan-Liang Huang
- Department of Emergency, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
| | - De-Xiong Chen
- Department of General Medicine, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
| | - Jiong-Hua Huang
- Department of Vasculocardiology, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
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