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Hinton A, Claypool SM, Neikirk K, Senoo N, Wanjalla CN, Kirabo A, Williams CR. Mitochondrial Structure and Function in Human Heart Failure. Circ Res 2024; 135:372-396. [PMID: 38963864 PMCID: PMC11225798 DOI: 10.1161/circresaha.124.323800] [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] [Indexed: 07/06/2024]
Abstract
Despite clinical and scientific advancements, heart failure is the major cause of morbidity and mortality worldwide. Both mitochondrial dysfunction and inflammation contribute to the development and progression of heart failure. Although inflammation is crucial to reparative healing following acute cardiomyocyte injury, chronic inflammation damages the heart, impairs function, and decreases cardiac output. Mitochondria, which comprise one third of cardiomyocyte volume, may prove a potential therapeutic target for heart failure. Known primarily for energy production, mitochondria are also involved in other processes including calcium homeostasis and the regulation of cellular apoptosis. Mitochondrial function is closely related to morphology, which alters through mitochondrial dynamics, thus ensuring that the energy needs of the cell are met. However, in heart failure, changes in substrate use lead to mitochondrial dysfunction and impaired myocyte function. This review discusses mitochondrial and cristae dynamics, including the role of the mitochondria contact site and cristae organizing system complex in mitochondrial ultrastructure changes. Additionally, this review covers the role of mitochondria-endoplasmic reticulum contact sites, mitochondrial communication via nanotunnels, and altered metabolite production during heart failure. We highlight these often-neglected factors and promising clinical mitochondrial targets for heart failure.
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Affiliation(s)
- Antentor Hinton
- Department of Molecular Physiology and Biophysics (A.H., K.N.), Vanderbilt University Medical Center, Nashville
| | - Steven M. Claypool
- Department of Physiology, Mitochondrial Phospholipid Research Center, Johns Hopkins University School of Medicine, Baltimore, Maryland (S.M.C., N.S.)
| | - Kit Neikirk
- Department of Molecular Physiology and Biophysics (A.H., K.N.), Vanderbilt University Medical Center, Nashville
| | - Nanami Senoo
- Department of Physiology, Mitochondrial Phospholipid Research Center, Johns Hopkins University School of Medicine, Baltimore, Maryland (S.M.C., N.S.)
| | - Celestine N. Wanjalla
- Department of Medicine, Division of Clinical Pharmacology (C.N.W., A.K.), Vanderbilt University Medical Center, Nashville
| | - Annet Kirabo
- Department of Medicine, Division of Clinical Pharmacology (C.N.W., A.K.), Vanderbilt University Medical Center, Nashville
- Vanderbilt Center for Immunobiology (A.K.)
- Vanderbilt Institute for Infection, Immunology and Inflammation (A.K.)
- Vanderbilt Institute for Global Health (A.K.)
| | - Clintoria R. Williams
- Department of Neuroscience, Cell Biology and Physiology, Wright State University, Dayton, OH (C.R.W.)
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Zuo H, Han W, Wu K, Yang H, Song H, Zhang Z, Lai Y, Pan Z, Li W, Zhao L. Prohibitin 2 deficiency in photoreceptors leads to progressive retinal degeneration and facilitated Müller glia engulfing microglia debris. Exp Eye Res 2024; 244:109935. [PMID: 38763352 DOI: 10.1016/j.exer.2024.109935] [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: 02/21/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
Müller glia and microglia are capable of phagocytosing fragments of retinal cells in response to retinal injury or degeneration. However, the direct evidence for their mutual interactions between Müller glia and microglia in the progression of retinal degeneration (RD) remains largely unclear. This study aims to construct a progressive RD mouse model and investigate the activated pattern of Müller glia and the interplay between Müller glia and microglia in the early stage or progression of RD. A Prohibitin 2 (Phb2) photoreceptor-specific knockout (RKO) mouse model was generated by crossing Phb2flox/flox mice with Rhodopsin-Cre mice. Optical Coherence Tomography (OCT), histological staining, and Electroretinography (ERG) assessed retinal structure and function, and RKO mice exhibited progressive RD from six weeks of age. In detail, six-week-old RKO mice showed no significant retinal impairment, but severe vision dysfunction and retina thinning were shown in ten-week-old RKO mice. Furthermore, RKO mice were sensitive to Light Damage (LD) and showed severe RD at an early age after light exposure. Bulk retina RNA-seq analysis from six-week-old control (Ctrl) and RKO mice showed reactive retinal glia in RKO mice. The activated pattern of Müller glia and the interplay between Müller glia and microglia was visualized by immunohistology and 3D reconstruction. In six-week-old RKO mice or light-exposed Ctrl mice, Müller glia were initially activated at the edge of the retina. Moreover, in ten-week-old RKO mice or light-exposed six-week-old RKO mice with severe photoreceptor degeneration, abundant Müller glia were activated across the whole retinas. With the progression of RD, phagocytosis of microglia debris by activated Müller glia were remarkably increased. Altogether, our study establishes a Phb2 photoreceptor-specific knockout mouse model, which is a novel mouse model of RD and can well demonstrate the phenotype of progressive RD. We also report that Müller glia in the peripheral retina is more sensitive to the early damage of photoreceptors. Our study provides more direct evidence for Müller glia engulfing microglia debris in the progression of RD due to photoreceptor Phb2 deficiency.
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Affiliation(s)
- Haoyu Zuo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Wenjuan Han
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Keling Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Haohan Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China; Guangdong Provincial Key Laboratory of Brain Function and Disease, Guangzhou, China
| | - Huiying Song
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Zirong Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Yuhua Lai
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Zhongshu Pan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China; State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, China Pharmaceutical University, Nanjing, China
| | - Weihua Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.
| | - Ling Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.
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Qu H, Liu X, Zhu J, He N, He Q, Zhang L, Wang Y, Gong X, Xiong X, Liu J, Wang C, Yang G, Yang Q, Luo G, Zhu Z, Zheng Y, Zheng H. Mitochondrial glycerol 3-phosphate dehydrogenase deficiency exacerbates lipotoxic cardiomyopathy. iScience 2024; 27:109796. [PMID: 38832016 PMCID: PMC11145339 DOI: 10.1016/j.isci.2024.109796] [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: 06/13/2023] [Revised: 03/21/2024] [Accepted: 04/18/2024] [Indexed: 06/05/2024] Open
Abstract
Metabolic diseases such as obesity and diabetes induce lipotoxic cardiomyopathy, which is characterized by myocardial lipid accumulation, dysfunction, hypertrophy, fibrosis and mitochondrial dysfunction. Here, we identify that mitochondrial glycerol 3-phosphate dehydrogenase (mGPDH) is a pivotal regulator of cardiac fatty acid metabolism and function in the setting of lipotoxic cardiomyopathy. Cardiomyocyte-specific deletion of mGPDH promotes high-fat diet induced cardiac dysfunction, pathological hypertrophy, myocardial fibrosis, and lipid accumulation. Mechanically, mGPDH deficiency inhibits the expression of desuccinylase SIRT5, and in turn, the hypersuccinylates majority of enzymes in the fatty acid oxidation (FAO) cycle and promotes the degradation of these enzymes. Moreover, manipulating SIRT5 abolishes the effects of mGPDH ablation or overexpression on cardiac function. Finally, restoration of mGPDH improves lipid accumulation and cardiomyopathy in both diet-induced and genetic obese mouse models. Thus, our study indicates that targeting mGPDH could be a promising strategy for lipotoxic cardiomyopathy in the context of obesity and diabetes.
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Affiliation(s)
- Hua Qu
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Xiufei Liu
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Jiaran Zhu
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Niexia He
- Department of Ultrasound, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Qingshan He
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Linlin Zhang
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Yuren Wang
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Xiaoli Gong
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Xin Xiong
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Jinbo Liu
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
| | - Chuan Wang
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
| | - Gangyi Yang
- Department of Endocrinology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qingwu Yang
- Department of Neurology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - Gang Luo
- Department of Orthopedics, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, the Third Affiliated Hospital of Army Medical University, Chongqing, China
| | - Yi Zheng
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Hongting Zheng
- Department of Endocrinology, Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of China, the Second Affiliated Hospital of Army Medical University, Chongqing, China
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Du Y, Li J, Dai Z, Chen Y, Zhao Y, Liu X, Xia T, Zhu P, Wang Y. Pyruvate kinase M2 sustains cardiac mitochondrial quality surveillance in septic cardiomyopathy by regulating prohibitin 2 abundance via S91 phosphorylation. Cell Mol Life Sci 2024; 81:254. [PMID: 38856931 DOI: 10.1007/s00018-024-05253-9] [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: 07/10/2023] [Revised: 04/11/2024] [Accepted: 04/20/2024] [Indexed: 06/11/2024]
Abstract
The endogenous mitochondrial quality control (MQC) system serves to protect mitochondria against cellular stressors. Although mitochondrial dysfunction contributes to cardiac damage during many pathological conditions, the regulatory signals influencing MQC disruption during septic cardiomyopathy (SC) remain unclear. This study aimed to investigate the involvement of pyruvate kinase M2 (PKM2) and prohibitin 2 (PHB2) interaction followed by MQC impairment in the pathogenesis of SC. We utilized LPS-induced SC models in PKM2 transgenic (PKM2TG) mice, PHB2S91D-knockin mice, and PKM2-overexpressing HL-1 cardiomyocytes. After LPS-induced SC, cardiac PKM2 expression was significantly downregulated in wild-type mice, whereas PKM2 overexpression in vivo sustained heart function, suppressed myocardial inflammation, and attenuated cardiomyocyte death. PKM2 overexpression relieved sepsis-related mitochondrial damage via MQC normalization, evidenced by balanced mitochondrial fission/fusion, activated mitophagy, restored mitochondrial biogenesis, and inhibited mitochondrial unfolded protein response. Docking simulations, co-IP, and domain deletion mutant protein transfection experiments showed that PKM2 phosphorylates PHB2 at Ser91, preventing LPS-mediated PHB2 degradation. Additionally, the A domain of PKM2 and the PHB domain of PHB2 are required for PKM2-PHB2 binding and PHB2 phosphorylation. After LPS exposure, expression of a phosphorylation-defective PHB2S91A mutant negated the protective effects of PKM2 overexpression. Moreover, knockin mice expressing a phosphorylation-mimetic PHB2S91D mutant showed improved heart function, reduced inflammation, and preserved mitochondrial function following sepsis induction. Abundant PKM2 expression is a prerequisite to sustain PKM2-PHB2 interaction which is a key element for preservation of PHB2 phosphorylation and MQC, presenting novel interventive targets for the treatment of septic cardiomyopathy.
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Affiliation(s)
- Yingzhen Du
- The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China
| | - Jialei Li
- School of Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhe Dai
- School of Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuxin Chen
- School of Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yao Zhao
- School of Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaoman Liu
- School of Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Tian Xia
- Department of Clinical Laboratory Medicine, The First Medical Centre, Medical School of Chinese People's Liberation Army, Beijing, China
- Xianning Medical College, Hubei University of Science & Technology, Xianning, China
| | - Pingjun Zhu
- The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China.
| | - Yijin Wang
- The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China.
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Zhang J, Zhou H, Lei F, Jiang K, Liao Y, Huang F, Chen M. Cholesterol 25-hydroxylase prevents type 2 diabetes mellitus induced cardiomyopathy by alleviating cardiac lipotoxicity. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167158. [PMID: 38588780 DOI: 10.1016/j.bbadis.2024.167158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/28/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024]
Abstract
OBJECTIVES Diabetic cardiomyopathy (DCM) is the leading cause of mortality in type 2 diabetes mellitus (T2DM) patients, with its underlying mechanisms still elusive. This study aims to investigate the role of cholesterol-25-monooxygenase (CH25H) in T2DM induced cardiomyopathy. METHODS High fat diet combined with streptozotocin (HFD/STZ) were used to establish a T2DM model. CH25H and its product 25-hydroxycholesterol (25HC) were detected in the hearts of T2DM model. Gain- or loss-of-function of CH25H were performed by receiving AAV9-cTNT-CH25H or CH25H knockout (CH25H-/-) mice with HFD/STZ treatment. Cardiac function was evaluated using echocardiography, and cardiac tissues were collected for immunoblot analysis, histological assessment and quantitative polymerase chain reaction (qPCR). Mitochondrial morphology and function were evaluated using transmission electron microscopy (TEM) and Seahorse XF Cell Mito Stress Test Kit. RNA-sequence analysis was performed to determine the molecular changes associated with CH25H deletion. RESULTS CH25H and 25HC were significantly decreased in the hearts of T2DM mice. CH25H-/- mice treated with HFD/STZ exhibited impaired mitochondrial function and structure, increased lipid accumulation, and aggregated cardiac dysfunction. Conversely, T2DM mice receiving AAV9-CH25H displayed cardioprotective effects. Mechanistically, RNA sequencing and qPCR analysis revealed that CH25H deficiency decreased peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) and its target gene expression. Additionally, administration of ZLN005, a potent PGC-1α activator, partially protected against high glucose and palmitic acid induced mitochondria dysfunction and lipid accumulation in vitro. CONCLUSION Our study provides compelling evidence supporting the protective role of CH25H in T2DM-induced cardiomyopathy. Furthermore, the regulation of PGC-1α may be intricately involved in this cardioprotective process.
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MESH Headings
- Animals
- Diabetic Cardiomyopathies/metabolism
- Diabetic Cardiomyopathies/pathology
- Diabetic Cardiomyopathies/prevention & control
- Diabetic Cardiomyopathies/etiology
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/metabolism
- Mice
- Mice, Knockout
- Male
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Steroid Hydroxylases/metabolism
- Steroid Hydroxylases/genetics
- Diet, High-Fat/adverse effects
- Mice, Inbred C57BL
- Hydroxycholesterols/metabolism
- Myocardium/metabolism
- Myocardium/pathology
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/metabolism
- Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/genetics
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Affiliation(s)
- Jialiang Zhang
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hao Zhou
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Fan Lei
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Kexin Jiang
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yanbiao Liao
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Fangyang Huang
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Mao Chen
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Sun H, Du B, Fu H, Yue Z, Wang X, Yu S, Zhang Z. Canagliflozin combined with aerobic exercise protects against chronic heart failure in rats. iScience 2024; 27:109014. [PMID: 38439968 PMCID: PMC10910240 DOI: 10.1016/j.isci.2024.109014] [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: 07/05/2023] [Revised: 12/01/2023] [Accepted: 01/22/2024] [Indexed: 03/06/2024] Open
Abstract
To determine the efficacy and potential protective mechanism of canagliflozin combined with aerobic exercise in treating chronic heart failure (CHF). Isoproterenol was injected into rats to create CHF models. The rats were then subsequently divided into saline, canagliflozin (3 mg/kg/d), aerobic exercise training, and canagliflozin combined with aerobic exercise training. Compared to the CHF group, the canagliflozin combined with the aerobic exercise group had superior ventricular remodeling and cardiac function. In rats treated with canagliflozin combined with aerobic exercise, the expression of cytochrome P450 (CYP) 4A3, CYP4A8, COL1A1, COL3A1, and FN1 was reduced, while the expression of CYP26B1, ALDH1A2, and CYP1A1 increased significantly. Additionally, canagliflozin combined with aerobic exercise decreased the phosphorylation of AKT and ERK1/2. Canagliflozin combined with aerobic exercise has a positive effect on the development of CHF via the regulation of retinol metabolism and the AKT/ERK signaling pathway.
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Affiliation(s)
- Helin Sun
- Department of Endocrinology and Metabology, Shenzhen Research Institute of Shandong University, Shenzhen, China, Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Endocrinology and Metabology, The Third Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Bingyu Du
- Department of Endocrinology and Metabology, Shenzhen Research Institute of Shandong University, Shenzhen, China, Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Endocrinology and Metabology, The Third Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Hui Fu
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhaodi Yue
- Teaching and Research Section of Internal Medicine, College of Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
- Department of rehabilitation medicine, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xueyin Wang
- Department of Endocrinology and Metabology, The Third Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Shaohong Yu
- Teaching and Research Section of Internal Medicine, College of Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
- Department of rehabilitation medicine, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhongwen Zhang
- Department of Endocrinology and Metabology, Shenzhen Research Institute of Shandong University, Shenzhen, China, Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Endocrinology and Metabology, The Third Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
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Niu X, Zhang Y, Lai Z, Huang X, Guo L, Lu F, Yuan Y, Gao J, Chang Q. Lipolysis inhibition improves the survival of fat grafts through ameliorating lipotoxicity and inflammation. FASEB J 2024; 38:e23520. [PMID: 38430369 DOI: 10.1096/fj.202302090r] [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: 10/15/2023] [Revised: 02/02/2024] [Accepted: 02/15/2024] [Indexed: 03/03/2024]
Abstract
Fat grafting is a promising technique for correcting soft tissue abnormalities, but oil cyst formation and graft fibrosis frequently impede the therapeutic benefit of fat grafting. The lipolysis of released oil droplets after grafting may make the inflammation and fibrosis in the grafts worse; therefore, by regulating adipose triglyceride lipase (ATGL) via Atglistatin (ATG) and Forskolin (FSK), we investigated the impact of lipolysis on fat grafts in this study. After being removed from the mice and chopped into small pieces, the subcutaneous fat from wild-type C57BL/6J mice was placed in three different solutions for two hours: serum-free cell culture medium, culture medium+FSK (50 μM), and culture medium+ATG (100 μM). Following centrifugation to remove water and free oil droplets, 0.3 mL of the fat particles per mouse was subcutaneously injected into the back of mice. Additionally, the subcutaneous fat grafting area was immediately injected with PBS (control group), ATG (30 mg/kg), and FSK (15 mg/kg) following fat transplantation. Detailed cellular events after grafting were investigated by histological staining, real-time polymerase chain reaction, immunohistochemistry/immunofluorescent staining, and quantification. Two weeks after grafting, grafts treated with ATG showed lower expression of ATGL and decreased mRNA levels of TNFα and IL-6. In contrast, grafts treated with ATG showed elevated expression levels of IL-4 and IL-13 compared to the control grafts. In addition, fewer apoptotic cells and oil cysts were observed in ATG grafts. Meanwhile, a higher CD206+/CD68+ ratio of macrophages and more CD31+ vascular endothelial cells existed in the 2-month ATG grafts. In comparison to the control, ATG treatment improved the volume retention of grafts, and decreased graft fibrosis and oil cyst formation. By preventing oil droplet lipolysis, pharmacological suppression of ATGL shielded adipocytes from lipotoxicity following grafting. Additionally, ATG ameliorated the apoptosis and inflammation brought on by adipocyte death and oil droplet lipolysis in grafted fat. These all indicate that lipolysis inhibition improved transplanted fat survival and decreased the development of oil cysts and graft fibrosis, offering a potential postoperative pharmacological intervention for bettering fat grafting.
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Affiliation(s)
- Xingtang Niu
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuchen Zhang
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhuhao Lai
- Department of Plastic and Cosmetic Surgery, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China
| | - Xiaoqi Huang
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Lingling Guo
- Department of Plastic and Cosmetic Surgery, The Central Hospital Affiliated of Shandong First Medical University, Jinan, Shandong, China
| | - Feng Lu
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yi Yuan
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jianhua Gao
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qiang Chang
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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8
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Zhao S, Wang Q, Zhang X, Ma B, Shi Y, Yin Y, Kong W, Zhang W, Li J, Yang H. MARCH5-mediated downregulation of ACC2 promotes fatty acid oxidation and tumor progression in ovarian cancer. Free Radic Biol Med 2024; 212:464-476. [PMID: 38211832 DOI: 10.1016/j.freeradbiomed.2024.01.004] [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: 11/02/2023] [Revised: 01/01/2024] [Accepted: 01/04/2024] [Indexed: 01/13/2024]
Abstract
Lipid metabolic reprogramming has been recognized as a hallmark of human cancer. Acetyl-CoA Carboxylases (ACCs) are key rate-limiting enzymes involved in fatty acid metabolism regulation by catalyzing the carboxylation of acetyl-CoA to malonyl-CoA. Previously, most studies focused on the role of ACC1 in fatty acid metabolism in cancer, while the function of ACC2 remains largely uncharacterized in human cancers, especially in ovarian cancer (OC). Here, we show that ACC2 was significantly downregulated in cancerous tissue of OC, and the downregulation of ACC2 is closely associated with lager tumor size, metastases and worse prognosis in OC patients. Downregulation of ACC2 promoted proliferation and metastasis of OC both in vitro and in vivo by enhancing FAO. Notably, mitochondria-associated ubiquitin ligase (MARCH5) was identified to interact with and downregulate ACC2 by ubiquitination and degradation in OC. Moreover, ACC2 downregulation-enhanced FAO contributed to the progression of OC promoted by MARCH5. In conclusion, our findings demonstrate that MARCH5-mediated downregulation of ACC2 promotes FAO and tumorigenesis in OC, suggesting MARCH5-ACC2 axis as a potent candidate for the treatment and prevention of OC.
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Affiliation(s)
- Shuhua Zhao
- Department of Gynaecology and Obstetrics, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Qingqiang Wang
- General Department, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Xiaohong Zhang
- Department of Gynaecology and Obstetrics, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Boyi Ma
- Department of Gynaecology and Obstetrics, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Yuan Shi
- Department of Gynaecology and Obstetrics, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Yadong Yin
- Department of Gynaecology and Obstetrics, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Weina Kong
- Department of Gynaecology and Obstetrics, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Wei Zhang
- Department of Gynaecology and Obstetrics, Xijing Hospital, Air Force Medical University, Xi'an, China.
| | - Jibin Li
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Physiology and Pathophysiology, Air Force Medical University, Xi'an, China.
| | - Hong Yang
- Department of Gynaecology and Obstetrics, Xijing Hospital, Air Force Medical University, Xi'an, China.
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9
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Zhao Y, Pan Y, Chen M, Tan Y, Chang X, Li H, Zhi Y. PKM2 interacts with and phosphorylates PHB2 to sustain mitochondrial quality control against septic cerebral-cardiac injury. Int J Med Sci 2024; 21:633-643. [PMID: 38464826 PMCID: PMC10920845 DOI: 10.7150/ijms.92367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 01/03/2024] [Indexed: 03/12/2024] Open
Abstract
Sepsis induces profound disruptions in cellular homeostasis, particularly impacting mitochondrial function in cardiovascular and cerebrovascular systems. This study elucidates the regulatory role of the Pyruvate Kinase M2 (PKM2)- Prohibitin 2 (PHB2) axis in mitochondrial quality control during septic challenges and its protective effects against myocardial and cerebral injuries. Employing LPS-induced mouse models, we demonstrate a significant downregulation of PKM2 and PHB2 in both heart and brain tissues post-sepsis, with corresponding impairments in mitochondrial dynamics, including fission, fusion, and mitophagy. Overexpression of PKM2 and PHB2 not only restores mitochondrial function, as evidenced by normalized ATP production and membrane potential but also confers resistance to oxidative stress by mitigating reactive oxygen species generation. These cellular mechanisms translate into substantial in vivo benefits, with transgenic mice overexpressing PKM2 or PHB2 displaying remarkable resistance to sepsis-induced cardiomyocyte and neuronal apoptosis, and organ dysfunction. Our findings highlight the PKM2-PHB2 interaction as a novel therapeutic target for sepsis, providing a foundation for future research into mitochondrial-based interventions to treat this condition. The study's insights into the molecular underpinnings of sepsis-induced organ failure pave the way for potential clinical applications in the management of sepsis and related pathologies.
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Affiliation(s)
- Yuanchen Zhao
- Neurology Department, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine
| | - Yawen Pan
- Wenzhou TCM Hospital of Zhejiang Chinese Medical University, Wenzhou, 325000, China
| | - Mengyuan Chen
- Wenzhou TCM Hospital of Zhejiang Chinese Medical University, Wenzhou, 325000, China
| | - Ying Tan
- Department of Cardiology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xing Chang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Haixia Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Yinghao Zhi
- Department of Rehabilitation Medicine, Wenzhou TCM Hospital of Zhejiang Chinese Medical University, Wenzhou, 325000, China
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10
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Xu W, Billon C, Li H, Wilderman A, Qi L, Graves A, Rideb JRDC, Zhao Y, Hayes M, Yu K, Losby M, Hampton CS, Adeyemi CM, Hong SJ, Nasiotis E, Fu C, Oh TG, Fan W, Downes M, Welch RD, Evans RM, Milosavljevic A, Walker JK, Jensen BC, Pei L, Burris T, Zhang L. Novel Pan-ERR Agonists Ameliorate Heart Failure Through Enhancing Cardiac Fatty Acid Metabolism and Mitochondrial Function. Circulation 2024; 149:227-250. [PMID: 37961903 PMCID: PMC10842599 DOI: 10.1161/circulationaha.123.066542] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023]
Abstract
BACKGROUND Cardiac metabolic dysfunction is a hallmark of heart failure (HF). Estrogen-related receptors ERRα and ERRγ are essential regulators of cardiac metabolism. Therefore, activation of ERR could be a potential therapeutic intervention for HF. However, in vivo studies demonstrating the potential usefulness of ERR agonist for HF treatment are lacking, because compounds with pharmacokinetics appropriate for in vivo use have not been available. METHODS Using a structure-based design approach, we designed and synthesized 2 structurally distinct pan-ERR agonists, SLU-PP-332 and SLU-PP-915. We investigated the effect of ERR agonist on cardiac function in a pressure overload-induced HF model in vivo. We conducted comprehensive functional, multi-omics (RNA sequencing and metabolomics studies), and genetic dependency studies both in vivo and in vitro to dissect the molecular mechanism, ERR isoform dependency, and target specificity. RESULTS Both SLU-PP-332 and SLU-PP-915 significantly improved ejection fraction, ameliorated fibrosis, and increased survival associated with pressure overload-induced HF without affecting cardiac hypertrophy. A broad spectrum of metabolic genes was transcriptionally activated by ERR agonists, particularly genes involved in fatty acid metabolism and mitochondrial function. Metabolomics analysis showed substantial normalization of metabolic profiles in fatty acid/lipid and tricarboxylic acid/oxidative phosphorylation metabolites in the mouse heart with 6-week pressure overload. ERR agonists increase mitochondria oxidative capacity and fatty acid use in vitro and in vivo. Using both in vitro and in vivo genetic dependency experiments, we show that ERRγ is the main mediator of ERR agonism-induced transcriptional regulation and cardioprotection and definitively demonstrated target specificity. ERR agonism also led to downregulation of cell cycle and development pathways, which was partially mediated by E2F1 in cardiomyocytes. CONCLUSIONS ERR agonists maintain oxidative metabolism, which confers cardiac protection against pressure overload-induced HF in vivo. Our results provide direct pharmacologic evidence supporting the further development of ERR agonists as novel HF therapeutics.
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Affiliation(s)
- Weiyi Xu
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Cyrielle Billon
- Department of Pharmaceutical and Administrative Sciences, University of Health Sciences and Pharmacy, St Louis, MO (C.B., M.H., T.B.)
- Center for Clinical Pharmacology, St Louis College of Pharmacy, Washington University School of Medicine, St Louis, MO (C.B., M.H., T.B.)
| | - Hui Li
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Andrea Wilderman
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Lei Qi
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Andrea Graves
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Jernie Rae Dela Cruz Rideb
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Yuanbiao Zhao
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Matthew Hayes
- Department of Pharmaceutical and Administrative Sciences, University of Health Sciences and Pharmacy, St Louis, MO (C.B., M.H., T.B.)
- Center for Clinical Pharmacology, St Louis College of Pharmacy, Washington University School of Medicine, St Louis, MO (C.B., M.H., T.B.)
| | - Keyang Yu
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - McKenna Losby
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Carissa S Hampton
- Department of Pharmacology and Physiology, St Louis University School of Medicine, MO (C.S.H., C.M.A., J.K.W.)
| | - Christiana M Adeyemi
- Department of Pharmacology and Physiology, St Louis University School of Medicine, MO (C.S.H., C.M.A., J.K.W.)
| | - Seok Jae Hong
- McAllister Heart Institute (S.J.H., B.C.J.), University of North Carolina, Chapel Hill
| | - Eleni Nasiotis
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - Chen Fu
- Department of Psychiatry, University of Massachusetts Chan Medical School, Worcester, MA (C.F.)
- University Hospitals Cleveland Medical Center, OH (C.F.)
| | - Tae Gyu Oh
- Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA (T.G.O., W.F., M.D., R.M.E.)
| | - Weiwei Fan
- Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA (T.G.O., W.F., M.D., R.M.E.)
| | - Michael Downes
- Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA (T.G.O., W.F., M.D., R.M.E.)
| | - Ryan D Welch
- Biology and Chemistry Department, Blackburn College, Carlinville, IL (R.D.W.)
| | - Ronald M Evans
- Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA (T.G.O., W.F., M.D., R.M.E.)
| | - Aleksandar Milosavljevic
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
| | - John K Walker
- Department of Pharmacology and Physiology, St Louis University School of Medicine, MO (C.S.H., C.M.A., J.K.W.)
| | - Brian C Jensen
- McAllister Heart Institute (S.J.H., B.C.J.), University of North Carolina, Chapel Hill
- Department of Medicine, Division of Cardiology (B.C.J.), University of North Carolina, Chapel Hill
| | - Liming Pei
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, and University of Pennsylvania, Philadelphia (L.P.)
| | - Thomas Burris
- Department of Pharmaceutical and Administrative Sciences, University of Health Sciences and Pharmacy, St Louis, MO (C.B., M.H., T.B.)
- Center for Clinical Pharmacology, St Louis College of Pharmacy, Washington University School of Medicine, St Louis, MO (C.B., M.H., T.B.)
| | - Lilei Zhang
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX (W.X., H.L., A.W., L.Q., A.G., J.R.D.C.R., Y.Z., K.Y., M.L., E.N., A.M., L.Z.)
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11
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Jiang MY, Man WR, Zhang XB, Zhang XH, Duan Y, Lin J, Zhang Y, Cao Y, Wu DX, Shu XF, Xin L, Wang H, Zhang X, Li CY, Gu XM, Zhang X, Sun DD. Adipsin inhibits Irak2 mitochondrial translocation and improves fatty acid β-oxidation to alleviate diabetic cardiomyopathy. Mil Med Res 2023; 10:63. [PMID: 38072993 PMCID: PMC10712050 DOI: 10.1186/s40779-023-00493-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 11/09/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Diabetic cardiomyopathy (DCM) causes the myocardium to rely on fatty acid β-oxidation for energy. The accumulation of intracellular lipids and fatty acids in the myocardium usually results in lipotoxicity, which impairs myocardial function. Adipsin may play an important protective role in the pathogenesis of DCM. The aim of this study is to investigate the regulatory effect of Adipsin on DCM lipotoxicity and its molecular mechanism. METHODS A high-fat diet (HFD)-induced type 2 diabetes mellitus model was constructed in mice with adipose tissue-specific overexpression of Adipsin (Adipsin-Tg). Liquid chromatography-tandem mass spectrometry (LC-MS/MS), glutathione-S-transferase (GST) pull-down technique, Co-immunoprecipitation (Co-IP) and immunofluorescence colocalization analyses were used to investigate the molecules which can directly interact with Adipsin. The immunocolloidal gold method was also used to detect the interaction between Adipsin and its downstream modulator. RESULTS The expression of Adipsin was significantly downregulated in the HFD-induced DCM model (P < 0.05). Adipose tissue-specific overexpression of Adipsin significantly improved cardiac function and alleviated cardiac remodeling in DCM (P < 0.05). Adipsin overexpression also alleviated mitochondrial oxidative phosphorylation function in diabetic stress (P < 0.05). LC-MS/MS analysis, GST pull-down technique and Co-IP studies revealed that interleukin-1 receptor-associated kinase-like 2 (Irak2) was a downstream regulator of Adipsin. Immunofluorescence analysis also revealed that Adipsin was co-localized with Irak2 in cardiomyocytes. Immunocolloidal gold electron microscopy and Western blotting analysis indicated that Adipsin inhibited the mitochondrial translocation of Irak2 in DCM, thus dampening the interaction between Irak2 and prohibitin (Phb)-optic atrophy protein 1 (Opa1) on mitochondria and improving the structural integrity and function of mitochondria (P < 0.05). Interestingly, in the presence of Irak2 knockdown, Adipsin overexpression did not further alleviate myocardial mitochondrial destruction and cardiac dysfunction, suggesting a downstream role of Irak2 in Adipsin-induced responses (P < 0.05). Consistent with these findings, overexpression of Adipsin after Irak2 knockdown did not further reduce the accumulation of lipids and their metabolites in the cardiac myocardium, nor did it enhance the oxidation capacity of cardiomyocytes expose to palmitate (PA) (P < 0.05). These results indicated that Irak2 may be a downstream regulator of Adipsin. CONCLUSIONS Adipsin improves fatty acid β-oxidation and alleviates mitochondrial injury in DCM. The mechanism is related to Irak2 interaction and inhibition of Irak2 mitochondrial translocation.
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Affiliation(s)
- Meng-Yuan Jiang
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Wan-Rong Man
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Xue-Bin Zhang
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Xiao-Hua Zhang
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Yu Duan
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Jie Lin
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Yan Zhang
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Yang Cao
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - De-Xi Wu
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Xiao-Fei Shu
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Lei Xin
- Department of Basic Medicine, Air Force Medical University, Xi'an, 710032, China
| | - Hao Wang
- Department of Basic Medicine, Air Force Medical University, Xi'an, 710032, China
| | - Xiao Zhang
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Cong-Ye Li
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Xiao-Ming Gu
- Department of Physiology and Pathophysiology, Air Force Medical University, Xi'an, 710032, China
| | - Xuan Zhang
- Institute for Hospital Management Research, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Dong-Dong Sun
- Department of Cardiology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China.
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12
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Yang M, Abudureyimu M, Wang X, Zhou Y, Zhang Y, Ren J. PHB2 ameliorates Doxorubicin-induced cardiomyopathy through interaction with NDUFV2 and restoration of mitochondrial complex I function. Redox Biol 2023; 65:102812. [PMID: 37451140 PMCID: PMC10366351 DOI: 10.1016/j.redox.2023.102812] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/05/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Doxorubicin (DOX) is among the most widely employed antitumor agents, although its clinical applications have been largely hindered by severe cardiotoxicity. Earlier studies described an essential role of mitochondrial injury in the pathogenesis of DOX cardiomyopathy. PHB2 (Prohibitin 2) is perceived as an essential regulator for mitochondrial dynamics and oxidative phosphorylation (OXPHOS) although its involvement in DOX cardiomyopathy remains elusive. METHODS To decipher the possible role of PHB2 in DOX cardiomyopathy, tamoxifen-induced cardiac-specific PHB2 conditional knockout mice were generated and subjected to DOX challenge. Cardiac function and mitochondrial profiles were examined. Screening of downstream mediators of PHB2 was performed using proteomic profiling and bioinformatic analysis, and was further verified using co-immunoprecipitation and pulldown assays. RESULTS Our data revealed significantly downregulated PHB2 expression in DOX-challenged mouse hearts. PHB2CKO mice were more susceptible to DOX cardiotoxicity compared with PHB2flox/flox mice, as evidenced by more pronounced cardiac atrophy, interstitial fibrosis and decrease in left ventricular ejection fraction and fractional shortening. Mechanistically, PHB2 deficiency resulted in the impairment of mitochondrial bioenergetics and oxidative phosphorylation in DOX cardiotoxicity. Proteomic profiling and interactome analyses revealed that PHB2 interacted with NDUFV2 (NADH-ubiquinone oxidoreductase core subunit V2), a key subunit of mitochondrial respiratory Complex I to mediate regulatory property of PHB2 on mitochondrial metabolism. PHB2 governed the expression of NDUFV2 by promoting its stabilization, while PHB2 deficiency significantly downregulated NDUFV2 in DOX-challenged hearts. Cardiac overexpression of PHB2 alleviated mitochondrial defects in DOX cardiomyopathy both in vivo and in vitro. CONCLUSIONS Our study defined a novel role for PHB2 in mitochondrial dynamics and energetic metabolism through interacting with NDUFV2 in DOX-challenged hearts. Forced overexpression of PHB2 may be considered a promising therapeutic approach for patients with DOX cardiomyopathy.
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Affiliation(s)
- Mingjie Yang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Miyesaier Abudureyimu
- Cardiovascular Department, Shanghai Xuhui Central Hospital, Fudan University, Shanghai, 200031, China
| | - Xiang Wang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Yuan Zhou
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Yingmei Zhang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
| | - Jun Ren
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
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13
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Cai C, Li Z, Zheng Z, Guo Z, Li Q, Deng S, Shi N, Ou Q, Zhou H, Guo Z, Chen Z, Zhu H. Pgam5-mediated PHB2 dephosphorylation contributes to endotoxemia-induced myocardial dysfunction by inhibiting mitophagy and the mitochondrial unfolded protein response. Int J Biol Sci 2023; 19:4657-4671. [PMID: 37781037 PMCID: PMC10535708 DOI: 10.7150/ijbs.85767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/11/2023] [Indexed: 10/03/2023] Open
Abstract
Numerous mitochondrial abnormalities are reported to result from excessive inflammation during endotoxemia. Prohibitin 2 (PHB2) and phosphoglycerate mutase 5 (Pgam5) have been associated with altered mitochondrial homeostasis in several cardiovascular diseases; however, their role in endotoxemia-related myocardial dysfunction has not been explored. Our experiments were aimed to evaluate the potential contribution of Pgam5 and PHB2 to endotoxemia-induced mitochondrial dysfunction in cardiomyocytes, with a focus on two endogenous protective programs that sustain mitochondrial integrity, namely mitophagy and the mitochondrial unfolded protein response (UPRmt). We found that PHB2 transgenic mice are resistant to endotoxemia-mediated myocardial depression and mitochondrial damage. Our assays indicated that PHB2 overexpression activates mitophagy and the UPRmt, which maintains mitochondrial metabolism, prevents oxidative stress injury, and enhances cardiomyocyte viability. Molecular analyses further showed that Pgam5 binds to and dephosphorylates PHB2, resulting in cytosolic translocation of mitochondrial PHB2. Silencing of Pgam5 or transfection of a phosphorylated PHB2 mutant in mouse HL-1 cardiomyocytes prevented the loss of mitochondrially-localized PHB2 and activated mitophagy and UPRmt in the presence of LPS. Notably, cardiomyocyte-specific deletion of Pgam5 in vivo attenuated LPS-mediated myocardial dysfunction and preserved cardiomyocyte viability. These findings suggest that Pgam5/PHB2 signaling and mitophagy/UPRmt are potential targets for the treatment of endotoxemia-related cardiac dysfunction.
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Affiliation(s)
- Chen Cai
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Critical Care Medicine, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Ziying Li
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Critical Care Medicine, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zemao Zheng
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhongzhou Guo
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Qian Li
- The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shuxian Deng
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Critical Care Medicine, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Nengxian Shi
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Critical Care Medicine, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Qing Ou
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Critical Care Medicine, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Hao Zhou
- School of Medicine, University of Rochester Medical Center Rochester, Rochester, NY 14642, United States
| | - Zhigang Guo
- Department of Cardiology, Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhongqing Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Critical Care Medicine, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Hang Zhu
- Senior Department of Cardiology, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, China
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14
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Krestinin R, Baburina Y, Odinokova I, Kruglov A, Sotnikova L, Krestinina O. The Effect of Astaxanthin on Mitochondrial Dynamics in Rat Heart Mitochondria under ISO-Induced Injury. Antioxidants (Basel) 2023; 12:1247. [PMID: 37371979 DOI: 10.3390/antiox12061247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Mitochondria are dynamic organelles that produce ATP in the cell and are sensitive to oxidative damage that impairs mitochondrial function in pathological conditions. Mitochondria are involved not only in a healthy heart but also in the development of heart disease. Therefore, attempts should be made to enhance the body's defense response against oxidative stress with the help of various antioxidants in order to decrease mitochondrial damage and reduce mitochondrial dysfunction. Mitochondrial fission and fusion play an important role in the quality control and maintenance of mitochondria. The ketocarotenoid astaxanthin (AX) is an antioxidant able to maintain mitochondrial integrity and prevent oxidative stress. In the present study, we investigated the effect of the protective effect of AX on the functioning of rat heart mitochondria (RHM). Changes in the content of proteins responsible for mitochondrial dynamics, prohibitin 2 (PHB2) as a protein that performs the function of quality control of mitochondrial proteins and participates in the stabilization of mitophagy, and changes in the content of cardiolipin (CL) in rat heart mitochondria after isoproterenol (ISO)-induced damage were examined. AX improved the respiratory control index (RCI), enhanced mitochondrial fusion, and inhibited mitochondrial fission in RHM after ISO injury. Rat heart mitochondria (RHM) were more susceptible to Ca2+-induced mitochondrial permeability pore (mPTP) opening after ISO injection, while AX abolished the effect of ISO. AX is able to perform a protective function in mitochondria, improving their efficiency. Therefore, AX can be considered an important ingredient in the diet for the prevention of cardiovascular disease. Therefore, AX can be examined as an important component of the diet for the prevention of heart disease.
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Affiliation(s)
- Roman Krestinin
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Yulia Baburina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Irina Odinokova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Alexey Kruglov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Linda Sotnikova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Olga Krestinina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
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15
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Qi A, Lamont L, Liu E, Murray SD, Meng X, Yang S. Essential Protein PHB2 and Its Regulatory Mechanisms in Cancer. Cells 2023; 12:cells12081211. [PMID: 37190120 DOI: 10.3390/cells12081211] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/17/2023] Open
Abstract
Prohibitins (PHBs) are a highly conserved class of proteins and have an essential role in transcription, epigenetic regulation, nuclear signaling, mitochondrial structural integrity, cell division, and cellular membrane metabolism. Prohibitins form a heterodimeric complex, consisting of two proteins, prohibitin 1 (PHB1) and prohibitin 2 (PHB2). They have been discovered to have crucial roles in regulating cancer and other metabolic diseases, functioning both together and independently. As there have been many previously published reviews on PHB1, this review focuses on the lesser studied prohibitin, PHB2. The role of PHB2 in cancer is controversial. In most human cancers, overexpressed PHB2 enhances tumor progression, while in some cancers, it suppresses tumor progression. In this review, we focus on (1) the history, family, and structure of prohibitins, (2) the essential location-dependent functions of PHB2, (3) dysfunction in cancer, and (4) the promising modulators to target PHB2. At the end, we discuss future directions and the clinical significance of this common essential gene in cancer.
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Affiliation(s)
- Amanda Qi
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Lillie Lamont
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Evelyn Liu
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Sarina D Murray
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Xiangbing Meng
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Shujie Yang
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
- Holden Comprehensive Cancer Center, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
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Matthews CEP, Fussner LA, Yaeger M, Aloor JJ, Reece SW, Kilburg-Basnyat BJ, Varikuti S, Luo B, Inks M, Sergin S, Schmidt CA, Neufer PD, Pennington ER, Fisher-Wellman KH, Chowdhury SM, Fessler MB, Fenton JI, Anderson EJ, Shaikh SR, Gowdy KM. The prohibitin complex regulates macrophage fatty acid composition, plasma membrane packing, and lipid raft-mediated inflammatory signaling. Prostaglandins Leukot Essent Fatty Acids 2023; 190:102540. [PMID: 36706677 PMCID: PMC9992117 DOI: 10.1016/j.plefa.2023.102540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/28/2022] [Accepted: 01/15/2023] [Indexed: 01/20/2023]
Abstract
Prohibitins (PHB1 and PHB2) are ubiquitously expressed proteins which play critical roles in multiple biological processes, and together form the ring-like PHB complex found in phospholipid-rich cellular compartments including lipid rafts. Recent studies have implicated PHB1 as a mediator of fatty acid transport as well as a membrane scaffold mediating B lymphocyte and mast cell signal transduction. However, the specific role of PHBs in the macrophage have not been characterized, including their role in fatty acid uptake and lipid raft-mediated inflammatory signaling. We hypothesized that the PHB complex regulates macrophage inflammatory signaling through the formation of lipid rafts. To evaluate our hypothesis, RAW 264.7 macrophages were transduced with shRNA against PHB1, PHB2, or scrambled control (Scr), and then stimulated with lipopolysaccharide (LPS) or tumor necrosis factor-alpha (TNF-α), which activate lipid raft-dependent receptor signaling (CD14/TLR4 and TNFR1, respectively). PHB1 knockdown was lethal, whereas PHB2 knockdown (PHB2kd), which also resulted in decreased PHB1 expression, led to attenuated nuclear factor-kappa-B (NF-κB) activation and subsequent cytokine and chemokine production. PHB2kd macrophages also had decreased cell surface TNFR1, CD14, TLR4, and lipid raft marker ganglioside GM1 at baseline and post-stimuli. Post-LPS, PHB2kd macrophages did not increase the concentration of cellular saturated, monounsaturated, and polyunsaturated fatty acids. This was accompanied by decreased lipid raft formation and modified plasma membrane molecular packing, further supporting the PHB complex's importance in lipid raft formation. Taken together, these data suggest a critical role for PHBs in regulating macrophage inflammatory signaling via maintenance of fatty acid composition and lipid raft structure. SUMMARY: Prohibitins are proteins found in phospholipid-rich cellular compartments, including lipid rafts, that play important roles in signaling, transcription, and multiple other cell functions. Macrophages are key cells in the innate immune response and the presence of membrane lipid rafts is integral to signal transduction, but the role of prohibitins in macrophage lipid rafts and associated signaling is unknown. To address this question, prohibitin knockdown macrophages were generated and responses to lipopolysaccharide and tumor necrosis factor-alpha, which act through lipid raft-dependent receptors, were analyzed. Prohibitin knockdown macrophages had significantly decreased cytokine and chemokine production, transcription factor activation, receptor expression, lipid raft assembly and membrane packing, and altered fatty acid remodeling. These data indicate a novel role for prohibitins in macrophage inflammatory signaling through regulation of fatty acid composition and lipid raft formation.
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Affiliation(s)
- Christine E Psaltis Matthews
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - Lynn A Fussner
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States
| | - Michael Yaeger
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States
| | - Jim J Aloor
- Diabetes and Obesity Institute, Department of Physiology, East Carolina University, Greenville, NC, United States
| | - Sky W Reece
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - Brita J Kilburg-Basnyat
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - Sanjay Varikuti
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States
| | - Bin Luo
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - Morgan Inks
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States
| | - Selin Sergin
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Cameron A Schmidt
- Diabetes and Obesity Institute, Department of Physiology, East Carolina University, Greenville, NC, United States
| | - P Darrell Neufer
- Diabetes and Obesity Institute, Department of Physiology, East Carolina University, Greenville, NC, United States
| | - Edward Ross Pennington
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina, Chapel Hill, NC, United States
| | - Kelsey H Fisher-Wellman
- Diabetes and Obesity Institute, Department of Physiology, East Carolina University, Greenville, NC, United States
| | - Saiful M Chowdhury
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, United States
| | - Michael B Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, United States
| | - Jenifer I Fenton
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Ethan J Anderson
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, FOE Diabetes Research Center, University of Iowa, Iowa City, IA, United States
| | - Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina, Chapel Hill, NC, United States
| | - Kymberly M Gowdy
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States.
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Chakrabarti M, Jain N, Bhadra MP. Metformin induces a shift from glycolysis to fatty acid oxidation in cardiac hypertrophy via PHB1. Biochim Biophys Acta Gen Subj 2023; 1867:130268. [PMID: 36347344 DOI: 10.1016/j.bbagen.2022.130268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/28/2022] [Accepted: 11/01/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Moumita Chakrabarti
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad 201002, Uttar Pradesh, India
| | - Nishant Jain
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad 201002, Uttar Pradesh, India.
| | - Manika Pal Bhadra
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad 201002, Uttar Pradesh, India.
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Cui K, Yang W, Liu S, Li D, Li L, Ren X, Sun Y, He G, Ma S, Zhang J, Wei Q, Wang Y. Synergistic Inhibition of MRSA by Chenodeoxycholic Acid and Carbapenem Antibiotics. Antibiotics (Basel) 2022; 12:antibiotics12010071. [PMID: 36671273 PMCID: PMC9854648 DOI: 10.3390/antibiotics12010071] [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: 10/30/2022] [Revised: 12/13/2022] [Accepted: 12/20/2022] [Indexed: 01/03/2023] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) has posed a severe global health threat. In this study, we screened an antibiotic and non-antibiotic combination that provides a viable strategy to solve this issue by broadening the antimicrobial spectrum. We found that chenodeoxycholic acid (CDCA) could synergistically act with carbapenem antibiotics to eradicate MRSA-related infections. This synergy specifically targets MRSA and was also validated using 25 clinical MRSA strains using time-kill analysis. We speculated that the underlying mechanism was associated with the interaction of penicillin-binding proteins (PBPs). As a result, the synergistic efficiency of CDCA with carbapenems targeting PBP1 was better than that of β-lactams targeting PBPs. Moreover, we showed that CDCA did not affect the expression level of PBPs, but sensitized MRSA to carbapenems by disrupting the cell membrane. In our study, we have revealed a novel synergistic combination of antibiotics and non-antibiotics to combat potential bacterial infections.
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Affiliation(s)
- Kaiyu Cui
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Weifeng Yang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Shuang Liu
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Dongying Li
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Lu Li
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xing Ren
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yanan Sun
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Gaiying He
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Shuhua Ma
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jidan Zhang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qing Wei
- Nanchang Institute of Technology, Nanchang 330044, China
- Correspondence: (Q.W.); (Y.W.)
| | - Yi Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Correspondence: (Q.W.); (Y.W.)
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19
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Oyang L, Li J, Jiang X, Lin J, Xia L, Yang L, Tan S, Wu N, Han Y, Yang Y, Luo X, Li J, Liao Q, Shi Y, Zhou Y. The function of prohibitins in mitochondria and the clinical potentials. Cancer Cell Int 2022; 22:343. [DOI: 10.1186/s12935-022-02765-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 10/20/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractProhibitins (PHBs) are a class of highly evolutionarily conserved proteins that widely distribute in prokaryotes and eukaryotes. PHBs function in cell growth and proliferation or differentiation, regulating metabolism and signaling pathways. PHBs have different subcellular localization in eukaryotes, but they are mainly located in mitochondria. In the mitochondria, PHBs stabilize the structure of the mitochondrial membrane and regulate mitochondrial autophagy, mitochondrial dynamics, mitochondrial biogenesis and quality control, and mitochondrial unfolded protein response. PHBs has shown to be associated with many diseases, such as mitochondria diseases, cancers, infectious diseases, and so on. Some molecule targets of PHBs can interfere with the occurrence and development of diseases. Therefore, this review clarifies the functions of PHBs in mitochondria, and provides a summary of the potential values in clinics.
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Jia Y, Mao C, Ma Z, Huang J, Li W, Ma X, Zhang S, Li M, Yu F, Sun Y, Chen J, Feng J, Zhou Y, Xu Q, Zhao L, Fu Y, Kong W. PHB2 Maintains the Contractile Phenotype of VSMCs by Counteracting PKM2 Splicing. Circ Res 2022; 131:807-824. [PMID: 36200440 DOI: 10.1161/circresaha.122.321005] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Phenotypic transition of vascular smooth muscle cells (VSMCs) accounts for the pathogenesis of a variety of vascular diseases during the early stage. Recent studies indicate the metabolic reprogramming may be involved in VSMC phenotypic transition. However, the definite molecules that link energy metabolism to distinct VSMC phenotype remain elusive. METHODS A carotid artery injury model was used to study postinjury neointima formation as well as VSMC phenotypic transition in vivo. RNA-seq analysis, cell migration assay, collagen gel contraction assay, wire myography assay, immunoblotting, protein interactome analysis, co-immunoprecipitation, and mammalian 2-hybrid assay were performed to clarify the phenotype and elucidate the molecular mechanisms. RESULTS We collected cell energy-regulating genes by using Gene Ontology annotation and applied RNA-Seq analysis of transforming growth factor-β or platelet-derived growth factor BB stimulated VSMCs. Six candidate genes were overlapped from energy metabolism-related genes and genes reciprocally upregulated by transforming growth factor-β and downregulated by platelet-derived growth factor BB. Among them, prohibitin 2 has been reported to regulate mitochondrial oxidative phosphorylation. Indeed, prohibitin 2-deficient VSMCs lost the contractile phenotype as evidenced by reduced contractile proteins. Consistently, Phb2SMCKO mice were more susceptible to postinjury VSMC proliferation and neointima formation compared with Phb2flox/flox mice. Further protein interactome analysis, co-immunoprecipitation, and mammalian 2-hybrid assay revealed that prohibitin 2, through its C-terminus, directly interacts with hnRNPA1, a key modulator of pyruvate kinase M1/2 (PKM) mRNA splicing that promotes PKM2 expression and glycolysis. Prohibitin 2 deficiency facilitated PKM1/2 mRNA splicing and reversion from PKM1 to PKM2, and enhanced glycolysis in VSMCs. Blocking prohibitin 2-hnRNPA1 interaction resulted in increased PKM2 expression, enhanced glycolysis, repressed contractile marker genes expression in VSMCs, as well as aggravated postinjury neointima formation in vivo. CONCLUSIONS Prohibitin 2 maintains VSMC contractile phenotype by interacting with hnRNPA1 to counteract hnRNPA1-mediated PKM alternative splicing and glucose metabolic reprogramming.
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Affiliation(s)
- Yiting Jia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Chenfeng Mao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.).,Beijing Institute of Biotechnology, Beijing, P. R. China (C.M.)
| | - Zihan Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Jiaqi Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Wenqiang Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Xiaolong Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Siting Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Meihong Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Fang Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Yingying Sun
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China (Y.S., J.C.)
| | - Jingzhou Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China (Y.S., J.C.)
| | - Juan Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Yuan Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Qingbo Xu
- Cardiovascular Division, Kings College London BHF Centre, London SE5 9NU, UK (Q.X.).,Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, P. R. China (Q.X.)
| | - Ling Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, P. R. China (L.Z.)
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
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Prohibitins: A Key Link between Mitochondria and Nervous System Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7494863. [PMID: 35847581 PMCID: PMC9286927 DOI: 10.1155/2022/7494863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 06/21/2022] [Indexed: 12/02/2022]
Abstract
Prohibitins (PHBs) are conserved proteins in eukaryotic cells, which are mainly located in the inner mitochondrial membrane (IMM), cell nucleus, and cell membrane. PHBs play crucial roles in various cellular functions, including the cell cycle regulation, tumor suppression, immunoglobulin M receptor binding, and aging. In addition, recent in vitro and in vivo studies have revealed that PHBs are important in nervous system diseases. PHBs can prevent apoptosis, inflammation, mitochondrial dysfunction, and autophagy in neurological disorders through different molecules and pathways, such as OPA-1, PINK1/Parkin, IL6/STAT3, Tau, NO, LC3, and TDP43. Therefore, PHBs show great promise in the protection of neurological disorders. This review summarizes the relevant studies on the relationship between PHBs and neurological disorders and provides an update on the molecular mechanisms of PHBs in nervous system diseases.
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Sun X, Han Y, Dong C, Qu H, Yu Y, Ju J, Bai Y, Yang B. Daming capsule protects against myocardial infarction by promoting mitophagy via the SIRT1/AMPK signaling pathway. Biomed Pharmacother 2022; 151:113162. [PMID: 35676781 DOI: 10.1016/j.biopha.2022.113162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 11/02/2022] Open
Abstract
Myocardial infarction (MI) is a myocardial injury caused by coronary thrombosis or persistent ischemia and hypoxia. Due to its high morbidity and mortality, a safer and more effective treatment strategy is urgently needed. Daming capsule (DMC), a hypolipidemic drug, reportedly exerts cardioprotective effects in clinical and basic research, although its protective mechanism remains unknown. To investigate the mechanism underlying DMC-mediated improvement of cardiac function post-MI, C57/BL6 mice subjected to coronary artery ligation were administered DMC for 4 weeks. Our data demonstrated that DMC significantly improved cardiac structure and function compared to the saline group. Moreover, DMC inhibited inflammatory response and oxidative stress and improved mitochondrial structure and function in MI mice and hypoxia-stressed cardiomyocytes. Next, our research proved that DMC increased the expression of mitophagy receptor NLRX1. Interestingly, with the administration of DMC and siNLRX1, NLRX1 expression, mitochondria and lysosome colocalization, and mitochondrial membrane potential decreased, while mitochondrial ROS accumulation increased, suggesting that DMC promoted mitophagy to improve mitochondrial function via NLRX1 regulation. Further analysis showed that DMC activated the SIRT1/AMPK signaling pathway in vivo and in vitro. Our data showed that SIRT1 knockdown downregulated NLRX1 expression, leading to structural damage and functional impairment in mitochondria, as well as increased oxidative stress, inflammatory response, and decreased cardiac function in MI mice. Collectively, our findings reveal that DMC improves cardiac function post-MI by increasing mitophagy and inhibiting oxidative stress and inflammotory response in cardiomyocytes through the SIRT1/AMPK signaling pathway.
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Affiliation(s)
- Xi Sun
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China.
| | - Yanna Han
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China.
| | - Chaorun Dong
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China; Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin 150081, PR China.
| | - Huan Qu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China.
| | - Yahan Yu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China.
| | - Jiaming Ju
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin 150081, PR China.
| | - Yunlong Bai
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China; Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin 150081, PR China.
| | - Baofeng Yang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China; Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin 150081, PR China.
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Wang Q, Sun Z, Cao S, Lin X, Wu M, Li Y, Yin J, Zhou W, Huang S, Zhang A, Zhang Y, Xia W, Jia Z. Reduced Immunity Regulator MAVS Contributes to Non-Hypertrophic Cardiac Dysfunction by Disturbing Energy Metabolism and Mitochondrial Homeostasis. Front Immunol 2022; 13:919038. [PMID: 35844503 PMCID: PMC9283757 DOI: 10.3389/fimmu.2022.919038] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/06/2022] [Indexed: 11/20/2022] Open
Abstract
Cardiac dysfunction is manifested as decline of cardiac systolic function, and multiple cardiovascular diseases (CVDs) can develop cardiac insufficiency. Mitochondrial antiviral signaling (MAVS) is known as an innate immune regulator involved in viral infectious diseases and autoimmune diseases, whereas its role in the heart remains obscure. The alteration of MAVS was analyzed in animal models with non-hypertrophic and hypertrophic cardiac dysfunction. Then, MAVS-deficient mice were generated to examine the heart function, mitochondrial status and energy metabolism. In vitro, CRISPR/Cas9-based gene editing was used to delete MAVS in H9C2 cell lines and the phenotypes of mitochondria and energy metabolism were evaluated. Here we observed reduced MAVS expression in cardiac tissue from several non-hypertrophic cardiac dysfunction models, contrasting to the enhanced MAVS in hypertrophic heart. Furthermore, we examined the heart function in mice with partial or total MAVS deficiency and found spontaneously developed cardiac pump dysfunction and cardiac dilation as assessed by echocardiography parameters. Metabonomic results suggested MAVS deletion probably promoted cardiac dysfunction by disturbing energy metabolism, especially lipid metabolism. Disordered and mitochondrial homeostasis induced by mitochondrial oxidative stress and mitophagy impairment also advanced the progression of cardiac dysfunction of mice without MAVS. Knockout of MAVS using CRISPR/Cas9 in cardiomyocytes damaged mitochondrial structure and function, as well as increased mitochondrial ROS production. Therefore, reduced MAVS contributed to the pathogenesis of non-hypertrophic cardiac dysfunction, which reveals a link between a key regulator of immunity (MAVS) and heart function.
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Affiliation(s)
- Qian Wang
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Zhenzhen Sun
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Shihan Cao
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Xiuli Lin
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Mengying Wu
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Yuanyuan Li
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Jie Yin
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Zhou
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Songming Huang
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Aihua Zhang
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Yue Zhang
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Zhanjun Jia, ; Weiwei Xia, ; Yue Zhang,
| | - Weiwei Xia
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Zhanjun Jia, ; Weiwei Xia, ; Yue Zhang,
| | - Zhanjun Jia
- Nanjing Key Laboratory of Pediatrics, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Zhanjun Jia, ; Weiwei Xia, ; Yue Zhang,
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24
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Genin EC, Bannwarth S, Ropert B, Lespinasse F, Mauri-Crouzet A, Augé G, Fragaki K, Cochaud C, Donnarumma E, Lacas-Gervais S, Wai T, Paquis-Flucklinger V. CHCHD10 and SLP2 control the stability of the PHB complex: a key factor for motor neuron viability. Brain 2022; 145:3415-3430. [DOI: 10.1093/brain/awac197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 05/12/2022] [Accepted: 05/18/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
CHCHD10 is an amyotrophic lateral sclerosis/frontotemporal dementia (ALS/FTD) gene that encodes a mitochondrial protein whose precise function is unclear. Here we show that CHCHD10 interacts with the Stomatin-Like Protein 2 (SLP2) and participates to the stability of the Prohibitin (PHB) complex in the inner mitochondrial membrane. By using patient fibroblasts and mouse models expressing the same CHCHD10 variant (p.Ser59Leu), we show that SLP2 forms aggregates with prohibitins, found in vivo in the hippocampus and as aggresome-like inclusions in spinal motor neurons of Chchd10S59L/+ mice. Affected cells and tissues display instability of the PHB complex which participates at least in part to the activation of the OMA1 cascade with OPA1 processing leading to mitochondrial fragmentation, abnormal mitochondrial cristae morphogenesis and neuronal death found in spinal cord and the hippocampus of Chchd10S59L/+ animals. Destabilization of the PHB complex leads to the instability of the mitochondrial contact site and cristae organizing system (MICOS) complex, likely via the disruption of OPA1/Mitofilin interaction. Thus, SLP2/PHB aggregates and destabilization of the PHB complex are critical in the sequence of events leading to motor neuron death in CHCHD10S59L-related disease.
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Affiliation(s)
- Emmanuelle C. Genin
- Université Côte d’Azur , Inserm U1081, CNRS UMR7284, IRCAN, CHU de Nice, Nice, France
| | - Sylvie Bannwarth
- Université Côte d’Azur , Inserm U1081, CNRS UMR7284, IRCAN, CHU de Nice, Nice, France
| | - Baptiste Ropert
- Université Côte d’Azur , Inserm U1081, CNRS UMR7284, IRCAN, CHU de Nice, Nice, France
| | - Françoise Lespinasse
- Université Côte d’Azur , Inserm U1081, CNRS UMR7284, IRCAN, CHU de Nice, Nice, France
| | | | - Gaelle Augé
- Université Côte d’Azur , Inserm U1081, CNRS UMR7284, IRCAN, CHU de Nice, Nice, France
| | - Konstantina Fragaki
- Université Côte d’Azur , Inserm U1081, CNRS UMR7284, IRCAN, CHU de Nice, Nice, France
| | - Charlotte Cochaud
- Université Côte d’Azur , Inserm U1081, CNRS UMR7284, IRCAN, CHU de Nice, Nice, France
| | - Erminia Donnarumma
- Institut Pasteur Mitochondrial Biology Group, , CNRS UMR 3691, Paris, France
| | | | - Timothy Wai
- Institut Pasteur Mitochondrial Biology Group, , CNRS UMR 3691, Paris, France
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25
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Han Z, Guo L, Yu X, Guo H, Deng X, Yu J, Deng X, Xu F, Zhang Z, Huang Y. Network-driven targeted analysis reveals that Astragali Radix alleviates doxorubicin-induced cardiotoxicity by maintaining fatty acid homeostasis. JOURNAL OF ETHNOPHARMACOLOGY 2022; 287:114967. [PMID: 34995692 DOI: 10.1016/j.jep.2022.114967] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/07/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Astragali Radix (AR) is a popular traditional Chinese medicine that has been used for more than 2000 years. It is a well-known tonic for weak people with chronic diseases, such as heart failure and cerebral ischemia. Previous studies have reported that AR could support the "weak heart" of cancer patients who suffered from doxorubicin (DOX)-induced cardiotoxicity (DIC). However, the underlying mechanism remains unclear. AIM OF THE STUDY This study aimed to uncover the critical pathways and molecular determinants for AR against DIC by fully characterizing the network-based relationship. MATERIALS AND METHODS We integrated ultra-high-performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS) profiling, database and literature searching, and the human protein-protein interactome to discover the specific network module associated with AR against DIC. To validate the network-based findings, a low-dose, long-term DIC mouse model and rat cardiomyoblast H9c2 cells were employed. The levels of potential key metabolites and proteins in hearts and cells were quantified by the LC-MS/MS targeted analysis and western blotting, respectively. RESULTS We constructed one of the most comprehensive AR component-target network described to date, which included 730 interactions connecting 64 unique components and 359 unique targets. Relying on the network-based evaluation, we identified fatty acid metabolism as a putative critical pathway and peroxisome proliferator-activated receptors (PPARα and PPARγ) as potential molecular determinants. We then confirmed that DOX caused the accumulation of fatty acids in the mouse failing heart, while AR promoted fatty acid metabolism and preserved heart function. By inhibiting PPARγ in H9c2 cells, we further found that AR could alleviate DIC by activating PPARγ to maintain fatty acid homeostasis. CONCLUSIONS Our findings imply that AR is a promising drug candidate that treats DIC by maintaining fatty acid homeostasis. More importantly, the network-based method developed here could facilitate the mechanism discovery of AR therapy and help catalyze innovation in its clinical application.
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Affiliation(s)
- Zhaodi Han
- Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Ministry of Education, Nanjing, 210009, China
| | - Linling Guo
- Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Ministry of Education, Nanjing, 210009, China; Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Xinyue Yu
- Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Ministry of Education, Nanjing, 210009, China; Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Huimin Guo
- Center for Biological Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Xiaoying Deng
- Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Ministry of Education, Nanjing, 210009, China
| | - Jiayu Yu
- Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Xueyang Deng
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, 210009, China
| | - Fengguo Xu
- Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Ministry of Education, Nanjing, 210009, China; Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Zunjian Zhang
- Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Ministry of Education, Nanjing, 210009, China.
| | - Yin Huang
- Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Ministry of Education, Nanjing, 210009, China; Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
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26
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Zou R, Tao J, He J, Wang C, Tan S, Xia Y, Chang X, Li R, Wang G, Zhou H, Fan X. PGAM5-Mediated PHB2 Dephosphorylation Contributes to Diabetic Cardiomyopathy by Disrupting Mitochondrial Quality Surveillance. RESEARCH 2022. [DOI: 10.34133/research.0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Disruption of the mitochondrial quality surveillance (MQS) system contributes to mitochondrial dysfunction in diabetic cardiomyopathy (DCM). In this study, we observed that cardiac expression of phosphoglycerate mutase 5 (PGAM5), a mitochondrial Ser/Thr protein phosphatase, is upregulated in mice with streptozotocin-induced DCM. Notably, DCM-related cardiac structural and functional deficits were negated in cardiomyocyte-specific
Pgam5
knockout (
Pgam5
CKO
) mice. Hyperglycemic stress impaired adenosine triphosphate production, reduced respiratory activity, and prolonged mitochondrial permeability transition pore opening in acutely isolated neonatal cardiomyocytes from control
Pgam5
f/f
mice, and these effects were markedly prevented in cardiomyocytes from
Pgam5
CKO
mice. Likewise, three main MQS-governed processes—namely, mitochondrial fission/fusion cycling, mitophagy, and biogenesis—were disrupted by hyperglycemia in
Pgam5
f/f
, but not in
Pgam5
CKO
, cardiomyocytes. On the basis of bioinformatics prediction of interaction between PGAM5 and prohibitin 2 (PHB2), an inner mitochondrial membrane-associated scaffolding protein, co-immunoprecipitation, and immunoblot assays demonstrated that PGAM5 dephosphorylates PHB2 on Ser91. Transfection of cardiomyocytes with phosphodefective or phosphomimetic Ser91 mutants of PHB2 confirmed a critical role for PGAM5-mediated dephosphorylation of PHB2 in mitochondrial dysfunction associated with hyperglycemic stress. Furthermore, knockin mice expressing phosphomimetic PHB2
S91D
were resistant to diabetes-induced cardiac dysfunction. Our findings highlight the PGAM-PHB2 axis as a novel and critical regulator of mitochondrial dysfunction in DCM.
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Affiliation(s)
- Rongjun Zou
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China
| | - Jun Tao
- Department of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, Guangdong, China
| | - Jie He
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China
| | - Chaojie Wang
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China
| | - Songtao Tan
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China
| | - Yu Xia
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China
| | - Xing Chang
- Senior Department of Cardiology, The Sixth Medical Center of People’s Liberation Army General Hospital, Beijing 100048, China
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ruibing Li
- Senior Department of Cardiology, The Sixth Medical Center of People’s Liberation Army General Hospital, Beijing 100048, China
| | - Ge Wang
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China
| | - Hao Zhou
- Senior Department of Cardiology, The Sixth Medical Center of People’s Liberation Army General Hospital, Beijing 100048, China
| | - Xiaoping Fan
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China
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27
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Zhao M, Mei T, Shang B, Zou B, Lian Q, Xu W, Wu K, Lai Y, Liu C, Wei L, Zhu J, Zhang K, Liu Y, Zhao L. Defect of LSS Disrupts Lens Development in Cataractogenesis. Front Cell Dev Biol 2021; 9:788422. [PMID: 34926465 PMCID: PMC8675080 DOI: 10.3389/fcell.2021.788422] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 10/29/2021] [Indexed: 11/24/2022] Open
Abstract
Congenital cataract is one of the leading causes of blindness in children worldwide. About one-third of congenital cataracts are caused by genetic defects. LSS, which encodes lanosterol synthase, is a causal gene for congenital cataracts. LSS is critical in preventing abnormal protein aggregation of various cataract-causing mutant crystallins; however, its roles in lens development remain largely unknown. In our study, we generated a mouse model harboring Lss G589S mutation, which is homologous to cataract-causing G588S mutation in human LSS. LssG589S/G589S mice exhibited neonatal lethality at postal day 0 (P0), whereas these mice showed severe opacity in eye lens. Also, we found that cataract was formed at E17.5 after we examined the opacity of embryonic lens from E13.5 to E18.5. Moreover, disrupted lens differentiation occurred at E14.5 prior to formation of the opacity of eye lens, shown as delayed differentiation of lens secondary fiber and disordered lens fiber organization. In addition, RNA-seq analysis indicated that cholesterol synthesis signaling pathways were significantly downregulated. Overall, our findings provide clear evidence that a mouse model harboring a homozygous Lss G589S mutation can recapitulate human congenital cataract. Our study points out that LSS functions as a critical determinant of lens development, which will contribute to better understanding LSS defects in cataractogenesis and developing therapies for cataracts.
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Affiliation(s)
- Minglei Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Tingfang Mei
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Bizhi Shang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Bin Zou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Qing Lian
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.,Dongguan Guangming Ophthalmic Hospital, Dongguan, China
| | - Wenchang Xu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Keling Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Yuhua Lai
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Chujun Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Lai Wei
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Jie Zhu
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Kang Zhang
- Center for Biomedicine and Innovations, Faculty of Medicine, Macau University of Science and Technology and University Hospital, Macau, China
| | - Yizhi Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China.,Research Unit of Ocular Development and Regeneration, Chinese Academy of Medical Sciences, Guangzhou, China
| | - Ling Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
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28
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Baburina Y, Krestinin R, Odinokova I, Fadeeva I, Sotnikova L, Krestinina O. The Identification of Prohibitin in the Rat Heart Mitochondria in Heart Failure. Biomedicines 2021; 9:biomedicines9121793. [PMID: 34944609 PMCID: PMC8699106 DOI: 10.3390/biomedicines9121793] [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: 11/15/2021] [Revised: 11/26/2021] [Accepted: 11/26/2021] [Indexed: 11/26/2022] Open
Abstract
Mitochondria are considered the main organelles in the cell. They play an important role in both normal and abnormal heart function. There is a supramolecular organization between the complexes of the respiratory chain (supercomplexes (SCs)), which are involved in mitochondrial respiration. Prohibitins (PHBs) participate in the regulation of oxidative phosphorylation (OXPHOS) activity and interact with some subunits of the OXPHOS complexes. In this study, we identified a protein whose level was decreased in the mitochondria of the heart in rats with heart failure. This protein was PHB. Isoproterenol (ISO) has been used as a compound to induce heart failure in rats. We observed that astaxanthin (AX) increased the content of PHB in rat heart mitochondria isolated from ISO-injected rats. Since it is known that PHB forms complexes with some mitochondrial proteins and proteins that are part of the complexes of the respiratory chain, the change in the levels of these proteins was investigated under our experimental conditions. We hypothesized that PHB may be a target for the protective action of AX.
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29
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Lipotoxicity: a driver of heart failure with preserved ejection fraction? Clin Sci (Lond) 2021; 135:2265-2283. [PMID: 34643676 PMCID: PMC8543140 DOI: 10.1042/cs20210127] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 12/17/2022]
Abstract
Heart failure with preserved ejection fraction (HFpEF) is a growing public health concern, with rising incidence alongside high morbidity and mortality. However, the pathophysiology of HFpEF is not yet fully understood. The association between HFpEF and the metabolic syndrome (MetS) suggests that dysregulated lipid metabolism could drive diastolic dysfunction and subsequent HFpEF. Herein we summarise recent advances regarding the pathogenesis of HFpEF in the context of MetS, with a focus on impaired lipid handling, myocardial lipid accumulation and subsequent lipotoxicity.
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30
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Lourenço AB, Artal-Sanz M. The Mitochondrial Prohibitin (PHB) Complex in C. elegans Metabolism and Ageing Regulation. Metabolites 2021; 11:metabo11090636. [PMID: 34564452 PMCID: PMC8472356 DOI: 10.3390/metabo11090636] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 12/20/2022] Open
Abstract
The mitochondrial prohibitin (PHB) complex, composed of PHB-1 and PHB-2, is an evolutionarily conserved context-dependent modulator of longevity. This extremely intriguing phenotype has been linked to alterations in mitochondrial function and lipid metabolism. The true biochemical function of the mitochondrial PHB complex remains elusive, but it has been shown to affect membrane lipid composition. Recent work, using large-scale biochemical approaches, has highlighted a broad effect of PHB on the C. elegans metabolic network. Collectively, the biochemical data support the notion that PHB modulates, at least partially, worm longevity through the moderation of fat utilisation and energy production via the mitochondrial respiratory chain. Herein, we review, in a systematic manner, recent biochemical insights into the impact of PHB on the C. elegans metabolome.
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Affiliation(s)
- Artur B. Lourenço
- Andalusian Centre for Developmental Biology (CABD), CSIC-Universidad Pablo de Olavide-Junta de Andalucía, Carretera de Utrera Km 1, 41013 Seville, Spain
- Correspondence: (A.B.L.); (M.A.-S.)
| | - Marta Artal-Sanz
- Andalusian Centre for Developmental Biology (CABD), CSIC-Universidad Pablo de Olavide-Junta de Andalucía, Carretera de Utrera Km 1, 41013 Seville, Spain
- Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide, Carretera de Utrera Km 1, 41013 Seville, Spain
- Correspondence: (A.B.L.); (M.A.-S.)
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31
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Wang C, Wang Y, Shen L. Mitochondrial proteins in heart failure: The role of deacetylation by SIRT3. Pharmacol Res 2021; 172:105802. [PMID: 34363948 DOI: 10.1016/j.phrs.2021.105802] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 12/28/2022]
Abstract
Heart failure (HF) is still the leading cause of death worldwide, occurring with a variety of complex mechanisms. However, most intervention for HF do not directly target the pathological mechanisms underlying cell damage in failing cardiomyocytes. Mitochondria are involved in many physiological processes, which is an important guarantee for normal heart function. Mitochondrial dysfunction is considered to be the critical node of the development of HF. Strict modulation of the mitochondrial function can ameliorate the myocardial injury and protect cardiac function. Acetylation plays an important role in mitochondrial protein homeostasis, and SIRT3, the most important deacetylation protein in mitochondria, is involved in the maintenance of mitochondrial function. SIRT3 can delay the progression of HF by improving mitochondrial function. Herein we summarize the interaction between SIRT3 and proteins related to mitochondrial function including oxidative phosphorylation (OXPHOS), fatty acid oxidation (FAO), mitochondrial biosynthesis, mitochondrial quality control. In addition, we also sum up the effects of this interaction on HF and the research progress of treatments targeting SIRT3, so as to find potential HF therapeutic for clinical use in the future.
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Affiliation(s)
- Chunfang Wang
- Department of Internal Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, 139 Middle Renming Road, Changsha, Hunan 410011, PR China.
| | - Yating Wang
- Department of Internal Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, 139 Middle Renming Road, Changsha, Hunan 410011, PR China.
| | - Li Shen
- Department of Internal Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, 139 Middle Renming Road, Changsha, Hunan 410011, PR China.
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32
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Hu Y, Xu Y, Chen W, Qiu Z. Stomatin-Like Protein-2: A Potential Target to Treat Mitochondrial Cardiomyopathy. Heart Lung Circ 2021; 30:1449-1455. [PMID: 34088631 DOI: 10.1016/j.hlc.2021.05.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 04/16/2021] [Accepted: 05/02/2021] [Indexed: 12/27/2022]
Abstract
Stomatin-like protein-2 (SLP-2) is a mitochondrial-associated protein that is abundant in cardiomyocytes. Many reports have shown that SLP-2 plays an important role in mitochondria. The treatment of mitochondrial cardiomyopathy (MCM) needs further improvement, so the relationship between SLP-2 and MCM is worth exploring. This study reviewed some protective mechanisms of SLP-2 on mitochondria. Published studies have shown that SLP-2 protects mitochondria by stabilising the function of optic atrophy 1 (OPA1), promoting mitofusin (Mfn) 2 expression, interacting with prohibitins and cardiolipin, forming SLP-2-PARL-YME1L (SPY) complex, and stabilising respiratory chain complexes, suggesting that SLP-2 is a new potential target for the treatment of MCM. However, the specific mechanism of SLP-2 needs to be confirmed by further research.
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Affiliation(s)
- Yuntao Hu
- Department of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Jiangsu, China
| | - Yueyue Xu
- Department of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Jiangsu, China
| | - Wen Chen
- Department of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Jiangsu, China.
| | - Zhibing Qiu
- Department of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Jiangsu, China.
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33
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Li L, Aslam M, Siegler BH, Niemann B, Rohrbach S. Comparative Analysis of CTRP-Mediated Effects on Cardiomyocyte Glucose Metabolism: Cross Talk between AMPK and Akt Signaling Pathway. Cells 2021; 10:cells10040905. [PMID: 33919975 PMCID: PMC8070942 DOI: 10.3390/cells10040905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/07/2021] [Accepted: 04/12/2021] [Indexed: 12/25/2022] Open
Abstract
C1q/tumor necrosis factor -alpha-related proteins (CTRPs) have been shown to mediate protective cardiovascular effects, but no data exists on their effects on glucose and fatty acid (FA) metabolism in cardiomyocytes. In the present study, adult rat cardiomyocytes and H9C2 cardiomyoblasts were stimulated with various recombinant CTRPs. Glucose or FA uptake, expression of genes involved in glucose or FA metabolism and the role of the AMP-activated protein kinase (AMPK) and Akt were investigated. Although most CTRPs induced an increase in phosphorylation of AMPK and Akt in cardiomyocytes, mainly CTRP2, 7, 9 and 13 induced GLUT1 and GLUT4 translocation and glucose uptake in cardiomyocytes, despite high structural similarities among CTRPs. AMPK inhibition reduced the CTRPs-mediated activation of Akt, while Akt inhibition did not impair AMPK activation. In addition, CTRP2, 7, 9 and 13 mediated strong effects on the expression of enzymes involved in glucose or FA metabolism. Loss of adiponectin receptor 1, which has been suggested to be involved in CTRP-induced signal transduction, abolished the effects of some but not all CTRPs on glucose metabolism. Targeting the AMPK signaling pathway via CTRPs may offer a therapeutic principle to restore glucose homeostasis by acting on glucose uptake independent of the Akt pathway.
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Affiliation(s)
- Ling Li
- Institute of Physiology, Justus Liebig University Giessen, 35392 Giessen, Germany; (B.H.S.); (S.R.)
- Correspondence: ; Tel.: +49-641-99-47342
| | - Muhammad Aslam
- Experimental Cardiology, Department of Cardiology and Angiology, Justus Liebig University Giessen, 35392 Giessen, Germany;
| | - Benedikt H. Siegler
- Institute of Physiology, Justus Liebig University Giessen, 35392 Giessen, Germany; (B.H.S.); (S.R.)
| | - Bernd Niemann
- Department of Cardiac and Vascular Surgery, Justus Liebig University Giessen, 35392 Giessen, Germany;
| | - Susanne Rohrbach
- Institute of Physiology, Justus Liebig University Giessen, 35392 Giessen, Germany; (B.H.S.); (S.R.)
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34
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Kay M, Soltani BM. LncRNAs in Cardiomyocyte Maturation: New Window for Cardiac Regenerative Medicine. Noncoding RNA 2021; 7:ncrna7010020. [PMID: 33802186 PMCID: PMC8005985 DOI: 10.3390/ncrna7010020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiomyocyte (CM) maturation, which is characterized by structural, functional, and metabolic specializations, is the last phase of CM development that prepares the cells for efficient and forceful contraction throughout life. Over the past decades, CM maturation has gained increased attention due to the fact that pluripotent stem cell-derived CMs are structurally, transcriptionally, and functionally immature and embryonic-like, which causes a defect in cell replacement therapy. The current challenge is to discover and understand the molecular mechanisms, which control the CM maturation process. Currently, emerging shreds of evidence emphasize the role of long noncoding RNAs (lncRNAs) in regulating different aspects of CM maturation, including myofibril maturation, electrophysiology, and Ca2+ handling maturation, metabolic maturation and proliferation to hypertrophy transition. Here, we describe the structural and functional characteristics of mature CMs. Furthermore, this review highlights the lncRNAs as crucial regulators of different aspects in CM maturation, which have the potential to be used for mature CM production. With the current advances in oligonucleotide delivery; lncRNAs may serve as putative therapeutic targets to produce highly mature CMs for research and regenerative medicine.
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Rohrbach S, Li L, Novoyatleva T, Niemann B, Knapp F, Molenda N, Schulz R. Impact of PCSK9 on CTRP9-Induced Metabolic Effects in Adult Rat Cardiomyocytes. Front Physiol 2021; 12:593862. [PMID: 33643060 PMCID: PMC7904879 DOI: 10.3389/fphys.2021.593862] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 01/18/2021] [Indexed: 12/12/2022] Open
Abstract
The adipocytokine adiponectin and its structural homologs, the C1q/TNF-related proteins (CTRPs), increase insulin sensitivity, fatty acid oxidation and mitochondrial biogenesis. Adiponectin- and CTRP-induced signal transduction has been described to involve the adiponectin receptors and a number of co-receptors including the Low density lipoprotein receptor-related protein 1 (LRP1). LRP1 is another target of the proprotein convertase subtilisin/kexin-9 (PCSK9) in addition to the LDL-receptor (LDL-R). Here, we investigated the influence of PCSK9 on the metabolic effects of CTRP9, the CTRP with the highest homology to adiponectin. Knockdown of LRP1 in H9C2 cardiomyoblasts blunts the effects of CTRP9 on signal transduction and mitochondrial biogenesis, suggesting its involvement in CTRP9-induced cellular effects. Treatment of adult rat cardiomyocytes with recombinant PCSK9 but not knockdown of endogenous PCSK9 by siRNA results in a strong reduction in LRP1 protein expression and subsequently reduces the mitochondrial biogenic effect of CTRP9. PCSK9 treatment (24 h) blunts the effects of CTRP9-induced signaling cascade activation (AMP-dependent protein kinase, protein kinase B). In addition, the stimulating effects of CTRP9 on cardiomyocyte mitochondrial biogenesis and glucose metabolism (GLUT-4 translocation, glucose uptake) are largely blunted. Basal fatty acid (FA) uptake is strongly reduced by exogenous PCSK9, although protein expression of the PCSK9 target CD36, the key regulator of FA transport in cardiomyocytes, is not altered. In addition, only minor effects of PCSK9 were observed on CTRP9-induced FA uptake or the expression of genes involved in FA metabolism or uptake. Finally, this CTRP9-induced increase in CD36 expression occurs independent from LRP1 and LDL-R. In conclusion, PCSK9 treatment influences LRP1-mediated signaling pathways in cardiomyocytes. Thus, therapeutic PCSK9 inhibition may provide an additional benefit through stimulation of glucose metabolism and mitochondrial biogenesis in addition to the known lipid-lowering effects. This could be an important beneficial side effect in situations with impaired mitochondrial function and reduced metabolic flexibility thereby influencing cardiac function.
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Affiliation(s)
- Susanne Rohrbach
- Institute of Physiology, Justus Liebig University Giessen, Giessen, Germany
| | - Ling Li
- Institute of Physiology, Justus Liebig University Giessen, Giessen, Germany
| | - Tatyana Novoyatleva
- Excellence Cluster Cardio Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus Liebig University Giessen, Giessen, Germany
| | - Bernd Niemann
- Department of Cardiac and Vascular Surgery, Justus Liebig University Giessen, Giessen, Germany
| | - Fabienne Knapp
- Institute of Physiology, Justus Liebig University Giessen, Giessen, Germany
| | - Nicole Molenda
- Institute of Physiology, Justus Liebig University Giessen, Giessen, Germany
| | - Rainer Schulz
- Institute of Physiology, Justus Liebig University Giessen, Giessen, Germany
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Boileau E, Doroudgar S, Riechert E, Jürgensen L, Ho TC, Katus HA, Völkers M, Dieterich C. A Multi-Network Comparative Analysis of Transcriptome and Translatome Identifies Novel Hub Genes in Cardiac Remodeling. Front Genet 2020; 11:583124. [PMID: 33304386 PMCID: PMC7701244 DOI: 10.3389/fgene.2020.583124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/09/2020] [Indexed: 12/03/2022] Open
Abstract
Our understanding of the transition from physiological to pathological cardiac hypertrophy remains elusive and largely based on reductionist hypotheses. Here, we profiled the translatomes of 15 mouse hearts to provide a molecular blueprint of altered gene networks in early cardiac remodeling. Using co-expression analysis, we showed how sub-networks are orchestrated into functional modules associated with pathological phenotypes. We discovered unappreciated hub genes, many undocumented for their role in cardiac hypertrophy, and genes in the transcriptional network that were rewired in the translational network, and associated with semantically different subsets of enriched functional terms, such as Fam210a, a novel musculoskeletal modulator, or Psmd12, implicated in protein quality control. Using their correlation structure, we found that transcriptome networks are only partially reproducible at the translatome level, providing further evidence of post-transcriptional control at the level of translation. Our results provide novel insights into the complexity of the organization of in vivo cardiac regulatory networks.
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Affiliation(s)
- Etienne Boileau
- Section of Bioinformatics and Systems Cardiology, Klaus Tschira Institute for Integrative Computational Cardiology, Heidelberg, Germany.,Department of Internal Medicine III (Cardiology, Angiology, and Pneumology), University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Berlin, Germany
| | - Shirin Doroudgar
- Department of Internal Medicine III (Cardiology, Angiology, and Pneumology), University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Berlin, Germany
| | - Eva Riechert
- Department of Internal Medicine III (Cardiology, Angiology, and Pneumology), University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Berlin, Germany
| | - Lonny Jürgensen
- Department of Internal Medicine III (Cardiology, Angiology, and Pneumology), University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Berlin, Germany
| | - Thanh Cao Ho
- Department of Internal Medicine III (Cardiology, Angiology, and Pneumology), University Hospital Heidelberg, Heidelberg, Germany
| | - Hugo A Katus
- Department of Internal Medicine III (Cardiology, Angiology, and Pneumology), University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Berlin, Germany
| | - Mirko Völkers
- Department of Internal Medicine III (Cardiology, Angiology, and Pneumology), University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Berlin, Germany
| | - Christoph Dieterich
- Section of Bioinformatics and Systems Cardiology, Klaus Tschira Institute for Integrative Computational Cardiology, Heidelberg, Germany.,Department of Internal Medicine III (Cardiology, Angiology, and Pneumology), University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Berlin, Germany
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37
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Takashi Y, Tomita K, Kuwahara Y, Roudkenar MH, Roushandeh AM, Igarashi K, Nagasawa T, Nishitani Y, Sato T. Mitochondrial dysfunction promotes aquaporin expression that controls hydrogen peroxide permeability and ferroptosis. Free Radic Biol Med 2020; 161:60-70. [PMID: 33017631 PMCID: PMC7530583 DOI: 10.1016/j.freeradbiomed.2020.09.027] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 12/20/2022]
Abstract
Most anti-cancer agents and radiotherapy exert their therapeutic effects via the production of free radicals. Ferroptosis is a recently described cell death process that is accompanied by iron-dependent lipid peroxidation. Hydrogen peroxide (H2O2) has been reported to induce cell death. However, it remains controversial whether H2O2-induced cell death is ferroptosis. In the present study, we aimed to elucidate the involvement of mitochondria in H2O2-induced ferroptosis and examined the molecules that regulate ferroptosis. We found that one mechanism underlying H2O2-induced cell death is ferroptosis, which occurs soon after H2O2 treatment (within 3 h after H2O2 treatment). We also investigated the involvement of mitochondria in H2O2-induced ferroptosis using mitochondrial DNA-depleted ρ0 cells because ρ0 cells produce more lipid peroxidation, hydroxyl radicals (•OH), and are more sensitive to H2O2 treatment. We found that ρ0 cells contain high Fe2+ levels that lead to •OH production by H2O2. Further, we observed that aquaporin (AQP) 3, 5, and 8 bind nicotinamide-adenine dinucleotide phosphate oxidase 2 and regulate the permeability of extracellular H2O2, thereby contributing to ferroptosis. Additionally, the role of mitochondria in ferroptosis was investigated using mitochondrial transfer in ρ0 cells. When mitochondria were transferred into ρ0 cells, the cells exhibited no sensitivity to H2O2-induced cytotoxicity because of decreased Fe2+ levels. Moreover, mitochondrial transfer upregulated the mitochondrial quality control protein prohibitin 2 (PHB2), which contributes to reduced AQP expression. Our findings also revealed the involvement of AQP and PHB2 in ferroptosis. Our results indicate that H2O2 treatment enhances AQP expression, Fe2+ level, and lipid peroxidation, and decrease mitochondrial function by downregulating PHB2, and thus, is a promising modality for effective cancer treatment.
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Affiliation(s)
- Yuko Takashi
- Department of Applied Pharmacology, Kagoshima, Japan; Restorative Dentistry and Endodontology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kazuo Tomita
- Department of Applied Pharmacology, Kagoshima, Japan
| | - Yoshikazu Kuwahara
- Department of Applied Pharmacology, Kagoshima, Japan; Division of Radiation Biology and Medicine, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Mehryar Habibi Roudkenar
- Department of Applied Pharmacology, Kagoshima, Japan; Cardiovascular Diseases Research Center, Department of Cardiology, Heshmat Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Amaneh Mohammadi Roushandeh
- Department of Applied Pharmacology, Kagoshima, Japan; Medical Biotechnology Department, Paramedicine Faculty, Guilan University of Medical Sciences, Rasht, Iran
| | | | | | - Yoshihiro Nishitani
- Restorative Dentistry and Endodontology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tomoaki Sato
- Department of Applied Pharmacology, Kagoshima, Japan.
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38
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Perrin-Cocon L, Diaz O, Jacquemin C, Barthel V, Ogire E, Ramière C, André P, Lotteau V, Vidalain PO. The current landscape of coronavirus-host protein-protein interactions. J Transl Med 2020; 18:319. [PMID: 32811513 PMCID: PMC7432461 DOI: 10.1186/s12967-020-02480-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 08/07/2020] [Indexed: 12/23/2022] Open
Abstract
In less than 20 years, three deadly coronaviruses, SARS-CoV, MERS-CoV and SARS-CoV-2, have emerged in human population causing hundreds to hundreds of thousands of deaths. Other coronaviruses are causing epizootic representing a significant threat for both domestic and wild animals. Members of this viral family have the longest genome of all RNA viruses, and express up to 29 proteins establishing complex interactions with the host proteome. Deciphering these interactions is essential to identify cellular pathways hijacked by these viruses to replicate and escape innate immunity. Virus-host interactions also provide key information to select targets for antiviral drug development. Here, we have manually curated the literature to assemble a unique dataset of 1311 coronavirus-host protein–protein interactions. Functional enrichment and network-based analyses showed coronavirus connections to RNA processing and translation, DNA damage and pathogen sensing, interferon production, and metabolic pathways. In particular, this global analysis pinpointed overlooked interactions with translation modulators (GIGYF2-EIF4E2), components of the nuclear pore, proteins involved in mitochondria homeostasis (PHB, PHB2, STOML2), and methylation pathways (MAT2A/B). Finally, interactome data provided a rational for the antiviral activity of some drugs inhibiting coronaviruses replication. Altogether, this work describing the current landscape of coronavirus-host interactions provides valuable hints for understanding the pathophysiology of coronavirus infections and developing effective antiviral therapies.
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Affiliation(s)
- Laure Perrin-Cocon
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France
| | - Olivier Diaz
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France
| | - Clémence Jacquemin
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France
| | - Valentine Barthel
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France
| | - Eva Ogire
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France.,UMR Processus Infectieux en Milieu Insulaire Tropical, Université de La Réunion, CNRS, 9192 INSERM U1187, IRD 249, Plateforme de Recherche CYROI, Sainte Clotilde La Réunion, France
| | - Christophe Ramière
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France.,Laboratoire de Virologie, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - Patrice André
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France
| | - Vincent Lotteau
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France.
| | - Pierre-Olivier Vidalain
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, 69007, Lyon, France.
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