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Alibhai FJ, Li RK. Rejuvenation of the Aging Heart: Molecular Determinants and Applications. Can J Cardiol 2024; 40:1394-1411. [PMID: 38460612 DOI: 10.1016/j.cjca.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/20/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024] Open
Abstract
In Canada and worldwide, the elderly population (ie, individuals > 65 years of age) is increasing disproportionately relative to the total population. This is expected to have a substantial impact on the health care system, as increased aged is associated with a greater incidence of chronic noncommunicable diseases. Within the elderly population, cardiovascular disease is a leading cause of death, therefore developing therapies that can prevent or slow disease progression in this group is highly desirable. Historically, aging research has focused on the development of anti-aging therapies that are implemented early in life and slow the age-dependent decline in cell and organ function. However, accumulating evidence supports that late-in-life therapies can also benefit the aged cardiovascular system by limiting age-dependent functional decline. Moreover, recent studies have demonstrated that rejuvenation (ie, reverting cellular function to that of a younger phenotype) of the already aged cardiovascular system is possible, opening new avenues to develop therapies for older individuals. In this review, we first provide an overview of the functional changes that occur in the cardiomyocyte with aging and how this contributes to the age-dependent decline in heart function. We then discuss the various anti-aging and rejuvenation strategies that have been pursued to improve the function of the aged cardiomyocyte, with a focus on therapies implemented late in life. These strategies include 1) established systemic approaches (caloric restriction, exercise), 2) pharmacologic approaches (mTOR, AMPK, SIRT1, and autophagy-targeting molecules), and 3) emerging rejuvenation approaches (partial reprogramming, parabiosis/modulation of circulating factors, targeting endogenous stem cell populations, and senotherapeutics). Collectively, these studies demonstrate the exciting potential and limitations of current rejuvenation strategies and highlight future areas of investigation that will contribute to the development of rejuvenation therapies for the aged heart.
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Affiliation(s)
- Faisal J Alibhai
- Toronto General Research Hospital Institute, University Health Network, Toronto, Ontario, Canada
| | - Ren-Ke Li
- Toronto General Research Hospital Institute, University Health Network, Toronto, Ontario, Canada; Department of Surgery, Division of Cardiovascular Surgery, University of Toronto, Toronto, Ontario, Canada.
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2
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Lv G, Yang M, Gai K, Jia Q, Wang Z, Wang B, Li X. Multiple functions of HMGB1 in cancer. Front Oncol 2024; 14:1384109. [PMID: 38725632 PMCID: PMC11079206 DOI: 10.3389/fonc.2024.1384109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/15/2024] [Indexed: 05/12/2024] Open
Abstract
High mobility group box 1 (HMGB1) is a nuclear DNA-binding protein with a dual role in cancer, acting as an oncogene and a tumor suppressor. This protein regulates nucleosomal structure, DNA damage repair, and genomic stability within the cell, while also playing a role in immune cell functions. This review comprehensively evaluates the biological and clinical significance of HMGB1 in cancer, including its involvement in cell death and survival, its potential as a therapeutic target and cancer biomarker, and as a prosurvival signal for the remaining cells after exposure to cytotoxic anticancer treatments. We highlight the need for a better understanding of the cellular markers and mechanisms involved in the involvement of HMGB1in cancer, and aim to provide a deeper understanding of its role in cancer progression.
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Affiliation(s)
- Guangyao Lv
- Department of Pharmacy, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Menglin Yang
- Quality Management Department, Marine Biomedical Research Institute of Qingdao, Qingdao, China
| | - Keke Gai
- Department of Pharmacy, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Qiong Jia
- Department of Pharmacy, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Zhenzhen Wang
- Department of Pharmacy, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Bin Wang
- Department of Pharmacy, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Xueying Li
- School of Health, Binzhou Polytechnic, Binzhou, China
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3
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Azimzadeh O, Merl-Pham J, Subramanian V, Oleksenko K, Krumm F, Mancuso M, Pasquali E, Tanaka IB, Tanaka S, Atkinson MJ, Tapio S, Moertl S. Late Effects of Chronic Low Dose Rate Total Body Irradiation on the Heart Proteome of ApoE -/- Mice Resemble Premature Cardiac Ageing. Cancers (Basel) 2023; 15:3417. [PMID: 37444528 DOI: 10.3390/cancers15133417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Recent epidemiologic studies support an association between chronic low-dose radiation exposure and the development of cardiovascular disease (CVD). The molecular mechanisms underlying the adverse effect of chronic low dose exposure are not fully understood. To address this issue, we have investigated changes in the heart proteome of ApoE deficient (ApoE-/-) C57Bl/6 female mice chronically irradiated for 300 days at a very low dose rate (1 mGy/day) or at a low dose rate (20 mGy/day), resulting in cumulative whole-body doses of 0.3 Gy or 6.0 Gy, respectively. The heart proteomes were compared to those of age-matched sham-irradiated ApoE-/- mice using label-free quantitative proteomics. Radiation-induced proteome changes were further validated using immunoblotting, enzyme activity assays, immunohistochemistry or targeted transcriptomics. The analyses showed persistent alterations in the cardiac proteome at both dose rates; however, the effect was more pronounced following higher dose rates. The altered proteins were involved in cardiac energy metabolism, ECM remodelling, oxidative stress, and ageing signalling pathways. The changes in PPARα, SIRT, AMPK, and mTOR signalling pathways were found at both dose rates and in a dose-dependent manner, whereas more changes in glycolysis and ECM remodelling were detected at the lower dose rate. These data provide strong evidence for the possible risk of cardiac injury following chronic low dose irradiation and show that several affected pathways following chronic irradiation overlap with those of ageing-associated heart pathology.
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Affiliation(s)
- Omid Azimzadeh
- Section of Radiation Biology, Federal Office of Radiation Protection (BfS), 85764 Nauenberg, Germany
| | - Juliane Merl-Pham
- Metabolomics and Proteomics Core, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764 Munich, Germany
| | - Vikram Subramanian
- Abboud Cardiovascular Research Center, Division of Cardiovascular Medicine, Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Kateryna Oleksenko
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany
| | - Franziska Krumm
- Section of Radiation Biology, Federal Office of Radiation Protection (BfS), 85764 Nauenberg, Germany
| | - Mariateresa Mancuso
- Laboratory of Biomedical Technologies, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), 00196 Rome, Italy
| | - Emanuela Pasquali
- Laboratory of Biomedical Technologies, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), 00196 Rome, Italy
| | - Ignacia B Tanaka
- Institute for Environmental Sciences (IES), Rokkasho, Aomori 039-3212, Japan
| | - Satoshi Tanaka
- Institute for Environmental Sciences (IES), Rokkasho, Aomori 039-3212, Japan
| | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany
- Radiation Oncology, Klinikum rechts der Isar, Technical University, 80333 Munich, Germany
| | - Soile Tapio
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany
| | - Simone Moertl
- Section of Radiation Biology, Federal Office of Radiation Protection (BfS), 85764 Nauenberg, Germany
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Kinger S, Dubey AR, Kumar P, Jagtap YA, Choudhary A, Kumar A, Prajapati VK, Dhiman R, Mishra A. Molecular Chaperones' Potential against Defective Proteostasis of Amyotrophic Lateral Sclerosis. Cells 2023; 12:cells12091302. [PMID: 37174703 PMCID: PMC10177248 DOI: 10.3390/cells12091302] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neuronal degenerative condition identified via a build-up of mutant aberrantly folded proteins. The native folding of polypeptides is mediated by molecular chaperones, preventing their pathogenic aggregation. The mutant protein expression in ALS is linked with the entrapment and depletion of chaperone capacity. The lack of a thorough understanding of chaperones' involvement in ALS pathogenesis presents a significant challenge in its treatment. Here, we review how the accumulation of the ALS-linked mutant FUS, TDP-43, SOD1, and C9orf72 proteins damage cellular homeostasis mechanisms leading to neuronal loss. Further, we discuss how the HSP70 and DNAJ family co-chaperones can act as potential targets for reducing misfolded protein accumulation in ALS. Moreover, small HSPB1 and HSPB8 chaperones can facilitate neuroprotection and prevent stress-associated misfolded protein apoptosis. Designing therapeutic strategies by pharmacologically enhancing cellular chaperone capacity to reduce mutant protein proteotoxic effects on ALS pathomechanisms can be a considerable advancement. Chaperones, apart from directly interacting with misfolded proteins for protein quality control, can also filter their toxicity by initiating strong stress-response pathways, modulating transcriptional expression profiles, and promoting anti-apoptotic functions. Overall, these properties of chaperones make them an attractive target for gaining fundamental insights into misfolded protein disorders and designing more effective therapies against ALS.
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Affiliation(s)
- Sumit Kinger
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Ankur Rakesh Dubey
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Prashant Kumar
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Yuvraj Anandrao Jagtap
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Akash Choudhary
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Amit Kumar
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore 453552, India
| | - Vijay Kumar Prajapati
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer 305817, India
| | - Rohan Dhiman
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, India
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur 342037, India
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5
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Guo S, Yang H, Liu J, Meng Z, Sui L. Heat Shock Proteins in Tooth Development and Injury Repair. Int J Mol Sci 2023; 24:ijms24087455. [PMID: 37108621 PMCID: PMC10138928 DOI: 10.3390/ijms24087455] [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: 03/15/2023] [Revised: 04/13/2023] [Accepted: 04/16/2023] [Indexed: 04/29/2023] Open
Abstract
Heat shock proteins (HSPs) are a class of molecular chaperones with expression increased in response to heat or other stresses. HSPs regulate cell homeostasis by modulating the folding and maturation of intracellular proteins. Tooth development is a complex process that involves many cell activities. During tooth preparation or trauma, teeth can be damaged. The damaged teeth start their repair process by remineralizing and regenerating tissue. During tooth development and injury repair, different HSPs have different expression patterns and play a special role in odontoblast differentiation and ameloblast secretion by mediating signaling pathways or participating in protein transport. This review explores the expression patterns and potential mechanisms of HSPs, particularly HSP25, HSP60 and HSP70, in tooth development and injury repair.
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Affiliation(s)
- Shuling Guo
- School of Stomatology, Tianjin Medical University, Tianjin 300014, China
| | - Haosun Yang
- School of Stomatology, Tianjin Medical University, Tianjin 300014, China
| | - Jiacheng Liu
- School of Stomatology, Tianjin Medical University, Tianjin 300014, China
| | - Zhaosong Meng
- School of Stomatology, Tianjin Medical University, Tianjin 300014, China
| | - Lei Sui
- School of Stomatology, Tianjin Medical University, Tianjin 300014, China
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Dela Justina V, Miguez JSG, Priviero F, Sullivan JC, Giachini FR, Webb RC. Sex Differences in Molecular Mechanisms of Cardiovascular Aging. FRONTIERS IN AGING 2022; 2:725884. [PMID: 35822017 PMCID: PMC9261391 DOI: 10.3389/fragi.2021.725884] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 08/25/2021] [Indexed: 12/12/2022]
Abstract
Cardiovascular disease (CVD) is still the leading cause of illness and death in the Western world. Cardiovascular aging is a progressive modification occurring in cardiac and vascular morphology and physiology where increased endothelial dysfunction and arterial stiffness are observed, generally accompanied by increased systolic blood pressure and augmented pulse pressure. The effects of biological sex on cardiovascular pathophysiology have long been known. The incidence of hypertension is higher in men, and it increases in postmenopausal women. Premenopausal women are protected from CVD compared with age-matched men and this protective effect is lost with menopause, suggesting that sex-hormones influence blood pressure regulation. In parallel, the heart progressively remodels over the course of life and the pattern of cardiac remodeling also differs between the sexes. Lower autonomic tone, reduced baroreceptor response, and greater vascular function are observed in premenopausal women than men of similar age. However, postmenopausal women have stiffer arteries than their male counterparts. The biological mechanisms responsible for sex-related differences observed in cardiovascular aging are being unraveled over the last several decades. This review focuses on molecular mechanisms underlying the sex-differences of CVD in aging.
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Affiliation(s)
- Vanessa Dela Justina
- Graduate Program in Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | - Fernanda Priviero
- Cardiovascular Translational Research Center, University of South Carolina, Columbia, SC, United States
| | - Jennifer C Sullivan
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Fernanda R Giachini
- Graduate Program in Biological Sciences, Federal University of Goiás, Goiânia, Brazil.,Institute of Biological Sciences and Health, Federal University of Mato Grosso, Barra do Garças, Brazil
| | - R Clinton Webb
- Cardiovascular Translational Research Center, University of South Carolina, Columbia, SC, United States
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7
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Zhang XL, Zhang XY, Ge XQ, Liu MX. Mangiferin prevents hepatocyte epithelial-mesenchymal transition in liver fibrosis via targeting HSP27-mediated JAK2/STAT3 and TGF-β1/Smad pathway. Phytother Res 2022; 36:4167-4182. [PMID: 35778992 DOI: 10.1002/ptr.7549] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 06/08/2022] [Accepted: 06/17/2022] [Indexed: 12/11/2022]
Abstract
Hepatocytes has been confirmed to undergo EMT and can be converted into myofibroblasts during hepatic fibrogenesis. However, the mechanism of hepatocyte EMT regulation in hepatic fibrosis, particularly through HSP27 (human homologue of rodent HSP25), remains unclear. Mangiferin (MAN), a compound extracted from Mangifera indica L, has been reported to attenuate liver injury. This study aimed to investigate the mechanisms underlying HSP27 inhibition and the anti-fibrotic effect of MAN in liver fibrosis. Our results revealed that the expression of HSP27 was remarkably increased in the liver tissues of patients with liver cirrhosis and CCl4 -induced fibrotic rats. However, HSP27 shRNA treatment significantly alleviated fibrosis. Furthermore, MAN was found to inhibit CCl4 - and TGF-β1-induced liver fibrosis and reduced hepatocyte EMT. More importantly, MAN decreased HSP27 expression to suppress the JAK2/STAT3 pathway, and subsequently blocked TGF-β1/Smad signaling, which were consistent with its protection against CCl4 -induced EMT and liver fibrosis. Together, these results suggest that HSP27 may play a crucial role in hepatocyte EMT and liver fibrosis by activating JAK2/STAT3 signaling and TGF-β1/Smad pathway. The suppression of HSP27 expression by MAN may be a novel strategy for attenuating the hepatocyte EMT in liver fibrosis.
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Affiliation(s)
- Xiao-Ling Zhang
- College of Pharmacy, Nantong University, Nantong, PR China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - Xiao-Yan Zhang
- Department of Pharmacology, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, PR China
| | - Xiao-Qun Ge
- Department of Pharmacology, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, PR China
| | - Ming-Xuan Liu
- College of Pharmacy, Nantong University, Nantong, PR China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
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8
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HSPA12A Stimulates p38/ERK-AP-1 Signaling to Promote Angiogenesis and Is Required for Functional Recovery Postmyocardial Infarction. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2333848. [PMID: 35783189 PMCID: PMC9247843 DOI: 10.1155/2022/2333848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 05/18/2022] [Accepted: 05/26/2022] [Indexed: 11/17/2022]
Abstract
Angiogenesis plays a critical role in wound healing postmyocardial infarction (MI). However, there is still a lack of ideal angiogenic therapeutics for rescuing ischemic hearts clinically, suggesting that a more understanding regarding angiogenesis regulation is urgently needed. Heat shock protein A12A (HSPA12A) is an atypical member of the HSP70 family. Here, we demonstrated that HSPA12A was upregulated during endothelial tube formation, a characteristic of in vitro angiogenesis. Intriguingly, overexpression of HSPA12A promoted in vitro angiogenic characteristics including proliferation, migration, and tube formation of endothelial cells. By contrast, deficiency of HSPA12A impaired myocardial angiogenesis and worsened cardiac dysfunction post-MI in mice. The expression of genes related to angiogenesis (VEGF, VEGFR2, and Ang-1) was decreased by HSPA12A deficiency in MI hearts of mice, whereas their expression was increased by HSPA12A overexpression in endothelial cells. HSPA12A overexpression in endothelial cells increased phosphorylation levels and nuclear localization of AP-1, a transcription factor dominating angiogenic gene expression. Also, HSPA12A increased p38 and ERK phosphorylation levels, whereas inhibition of p38 or ERKs diminished the HSPA12A-promoted AP-1 phosphorylation and nuclear localization, as well as VEGF and VEGFR2 expression in endothelial cells. Notably, inhibition of either p38 or ERKs diminished the HSPA12A-promoted in vitro angiogenesis characteristics. The findings identified HSPA12A as a novel angiogenesis activator, and HSPA12A might represent a viable strategy for the management of myocardial healing in patients with ischemic heart diseases.
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Wang ZY, Li A, Huang X, Bai GL, Jiang YX, Li RL, Liu C, Wen ZY, Wang P, Chen AJ. HSP27 Protects Skin From Ultraviolet B -Induced Photodamage by Regulating Autophagy and Reactive Oxygen Species Production. Front Cell Dev Biol 2022; 10:852244. [PMID: 35445017 PMCID: PMC9014213 DOI: 10.3389/fcell.2022.852244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/15/2022] [Indexed: 11/25/2022] Open
Abstract
Ultraviolet (UV) irradiation has been well documented to be linked with almost all skin problems we know, and both dermis and epidermis may be affected to varying degrees by UV irradiation. Every time when exposed to sunlight without protection, our skin will step closer to photoaging, leading to irreversible consequences ultimately. Heat shock protein 27 (HSP27) is a vital protein involved in cell growth, autophagy, apoptosis, drug resistance, tumor genesis and metastasis. Evidence suggests that the organism is subjected to various internal and external environmental stresses (heat, oxidative stress, organic toxicants, etc.), and HSP27 with high expression has protective function. However, the expression of HSP27 in coping with UV irradiation have not been examined thoroughly. In this study, photodamage models were developed through different doses of UVB irradiation in human epidermal keratinocytes (HEKs) (30 mJ/cm2), human dermal fibroblasts (HDFs) (150 mJ/cm2) and mouse skin (2,700 mJ/cm2). HSP27 knockdown decreased cell viability and increased the incidence of UVB-induced reactive oxygen species (ROS) production. We got consistent results in vivo and vitro. Compared with that in the UVB group, the expression of LC3B was significantly lower, while the expression of p62 was significantly higher in the UVB + si-HSP27 group. It was also revealed that HSP27 knockdown reduced the expressions of some antioxidants, such as superoxide dismutase (SOD) and catalase (CAT), which accelerated UVB-induced ROS release. Moreover, histological results showed that epidermis was thickened and collagen fibers were disorganized in the UVB + si-HSP27 group. These findings have demonstrated that HSP27 might play a photoprotective role in the UVB-induced skin damage process by maintaining the normal autophagy and antioxidant level. It is implied that HSP27 could be a potential therapeutic target of photodamage. However, determination of the definitive mechanism requires further exploration.
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Affiliation(s)
- Zi-Yue Wang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ang Li
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xin Huang
- Prescriptions Department, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
| | - Gen-Long Bai
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yu-Xin Jiang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ruo-Lin Li
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chuan Liu
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhu-Yuan Wen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ping Wang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ai-Jun Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Packialakshmi B, Stewart IJ, Burmeister DM, Feng Y, McDaniel DP, Chung KK, Zhou X. Tourniquet-induced lower limb ischemia/reperfusion reduces mitochondrial function by decreasing mitochondrial biogenesis in acute kidney injury in mice. Physiol Rep 2022; 10:e15181. [PMID: 35146957 PMCID: PMC8831939 DOI: 10.14814/phy2.15181] [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: 08/08/2021] [Revised: 11/17/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023] Open
Abstract
The mechanisms by which lower limb ischemia/reperfusion induces acute kidney injury (AKI) remain largely uncharacterized. We hypothesized that tourniquet-induced lower limb ischemia/reperfusion (TILLIR) would inhibit mitochondrial function in the renal cortex. We used a murine model to show that TILLIR of the high thigh regions inflicted time-dependent AKI as determined by renal function and histology. This effect was associated with decreased activities of mitochondrial complexes I, II, V and citrate synthase in the kidney cortex. Moreover, TILLIR reduced mRNA levels of a master regulator of mitochondrial biogenesis PGC-1α, and its downstream genes NDUFS1 and ATP5o in the renal cortex. TILLIR also increased serum corticosterone concentrations. TILLIR did not significantly affect protein levels of the critical regulators of mitophagy PINK1 and PARK2, mitochondrial transport proteins Tom20 and Tom70, or heat-shock protein 27. TILLIR had no significant effect on mitochondrial oxidative stress as determined by mitochondrial ability to generate reactive oxygen species, protein carbonylation, or protein levels of MnSOD and peroxiredoxin1. However, TILLIR inhibited classic autophagic flux by increasing p62 protein abundance and preventing the conversion of LC3-I to LC3-II. TILLIR increased phosphorylation of cytosolic and mitochondrial ERK1/2 and mitochondrial AKT1, as well as mitochondrial SGK1 activity. In conclusion, lower limb ischemia/reperfusion induces distal AKI by inhibiting mitochondrial function through reducing mitochondrial biogenesis. This AKI occurs without significantly affecting PINK1-PARK2-mediated mitophagy or mitochondrial oxidative stress in the kidney cortex.
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Affiliation(s)
- Balamurugan Packialakshmi
- Department of MedicineUniformed Services University of the Health SciencesBethesdaMarylandUSA
- The Henry Jackson M. Foundation for the Advancement of Military MedicineBethesdaMarylandUSA
| | - Ian J. Stewart
- Department of MedicineUniformed Services University of the Health SciencesBethesdaMarylandUSA
| | - David M. Burmeister
- Department of MedicineUniformed Services University of the Health SciencesBethesdaMarylandUSA
| | - Yuanyi Feng
- Department of BiochemistryUniformed Services University of the Health SciencesBethesdaMarylandUSA
| | - Dennis P. McDaniel
- Biomedical Instrumentation CenterUniformed Services University of the Health SciencesBethesdaMarylandUSA
| | - Kevin K. Chung
- Department of MedicineUniformed Services University of the Health SciencesBethesdaMarylandUSA
| | - Xiaoming Zhou
- Department of MedicineUniformed Services University of the Health SciencesBethesdaMarylandUSA
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11
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Downregulation of HSPA12A underlies myotoxicity of local anesthetic agent bupivacaine through inhibiting PGC1α-mediated mitochondrial integrity. Toxicol Appl Pharmacol 2021; 434:115798. [PMID: 34793778 DOI: 10.1016/j.taap.2021.115798] [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: 07/07/2021] [Revised: 10/30/2021] [Accepted: 11/10/2021] [Indexed: 11/22/2022]
Abstract
Local anesthetics (LAs) are widely used for intraoperative anesthesia and postoperative analgesia. However, LAs (e.g. Bupivacaine) can evoke myotoxicity that closely associated to mitochondrial damage. PGC1a is a mast co-factor for mitochondrial quality control. We have recently demonstrated that PGC1a can be activated by HSPA12A in hepatocytes, suggesting a possibility that HSPA12A protects from LAs myotoxicity through activating PGC1α-mediated mitochondrial integrity. Here, we reported that HSPA12A was downregulated during Bupivacaine-induced myotoxicity in skeletal muscles of mice in vivo and C2c12 myoblast cultures in vitro. Intriguingly, overexpression of HSPA12A attenuated the Bupivacaine-induced C2c12 cell death. We also noticed that the Bupivacaine-induced decrease of glucose consumption and ATP production was improved by HSPA12A overexpression. Moreover, overexpression of HSPA12A in C2c12 cells attenuated the Bupivacaine-induced decrease of mitochondrial contents and increase of mitochondrial fragmentation. The Bupivacaine-induced reduction of PGC1α expression and nuclear localization was markedly attenuated by HSPA12A overexpression. Importantly, pretreatment with a selective PGC1α inhibitor (SR-18292) abolished the protection of HSPA12A from Bupivacaine-induced death and mitochondrial loss in C2c12 cells. Altogether, the findings indicate that downregulation of HSPA12A underlies myotoxicity of Local anesthetic agent Bupivacaine through inhibiting PGC1α-mediated Mitochondrial Integrity. Thus, HSPA12A might represent a viable strategy for preventing myotoxicity of LAs.
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12
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Cen X, Zhang M, Zhou M, Ye L, Xia H. Mitophagy Regulates Neurodegenerative Diseases. Cells 2021; 10:1876. [PMID: 34440645 PMCID: PMC8392649 DOI: 10.3390/cells10081876] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 12/12/2022] Open
Abstract
Mitochondria play an essential role in supplying energy for the health and survival of neurons. Mitophagy is a metabolic process that removes dysfunctional or redundant mitochondria. This process preserves mitochondrial health. However, defective mitophagy triggers the accumulation of damaged mitochondria, causing major neurodegenerative disorders. This review introduces molecular mechanisms and signaling pathways behind mitophagy regulation. Furthermore, we focus on the recent advances in understanding the potential role of mitophagy in the pathogenesis of major neurodegenerative diseases (Parkinson's, Alzheimer's, Huntington's, etc.) and aging. The findings will help identify the potential interventions of mitophagy regulation and treatment strategies of neurodegenerative diseases.
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Affiliation(s)
- Xufeng Cen
- Department of Biochemistry & Research Center of Clinical Pharmacy of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China; (X.C.); (M.Z.); (M.Z.); (L.Y.)
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou 311121, China
| | - Manke Zhang
- Department of Biochemistry & Research Center of Clinical Pharmacy of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China; (X.C.); (M.Z.); (M.Z.); (L.Y.)
| | - Mengxin Zhou
- Department of Biochemistry & Research Center of Clinical Pharmacy of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China; (X.C.); (M.Z.); (M.Z.); (L.Y.)
| | - Lingzhi Ye
- Department of Biochemistry & Research Center of Clinical Pharmacy of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China; (X.C.); (M.Z.); (M.Z.); (L.Y.)
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou 311121, China
| | - Hongguang Xia
- Department of Biochemistry & Research Center of Clinical Pharmacy of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China; (X.C.); (M.Z.); (M.Z.); (L.Y.)
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou 311121, China
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13
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Role of PI3K/Akt signaling pathway in cardiac fibrosis. Mol Cell Biochem 2021; 476:4045-4059. [PMID: 34244974 DOI: 10.1007/s11010-021-04219-w] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/29/2021] [Indexed: 12/26/2022]
Abstract
Heart failure (HF) is considered as a severe health problem worldwide, while cardiac fibrosis is one of the main driving factors for the progress of HF. Cardiac fibrosis was characterized by changes in cardiomyocytes, cardiac fibroblasts, ratio of collagen (COL) I/III, and the excessive production and deposition of extracellular matrix (ECM), thus forming a scar tissue, which leads to pathological process of cardiac structural changes and systolic as well as diastolic dysfunction. Cardiac fibrosis is a common pathological change of many advanced cardiovascular diseases including ischemic heart disease, hypertension, and HF. Accumulated studies have proven that phosphoinositol-3 kinase (PI3K)/Akt signaling pathway is involved in regulating the occurrence, progression and pathological formation of cardiac fibrosis via regulating cell survival, apoptosis, growth, cardiac contractility and even the transcription of related genes through a series of molecules including mammalian target of rapamycin (mTOR), glycogen synthase kinase 3 (GSK-3), forkhead box proteins O1/3 (FoxO1/3), and nitric oxide synthase (NOS). Thus, the review focuses on the role of PI3K/Akt signaling pathway in the cardiac fibrosis. The information reviewed here should be significant in understanding the role of PI3K/Akt in cardiac fibrosis and contribute to the design of further studies related to PI3K/Akt and the cardiac fibrotic response, as well as sought to shed light on a potential treatment for cardiac fibrosis.
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14
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Yan M, Sun S, Xu K, Huang X, Dou L, Pang J, Tang W, Shen T, Li J. Cardiac Aging: From Basic Research to Therapeutics. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9570325. [PMID: 33777324 PMCID: PMC7969106 DOI: 10.1155/2021/9570325] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 02/07/2021] [Accepted: 02/11/2021] [Indexed: 01/12/2023]
Abstract
With research progress on longevity, we have gradually recognized that cardiac aging causes changes in heart structure and function, including progressive myocardial remodeling, left ventricular hypertrophy, and decreases in systolic and diastolic function. Elucidating the regulatory mechanisms of cardiac aging is a great challenge for biologists and physicians worldwide. In this review, we discuss several key molecular mechanisms of cardiac aging and possible prevention and treatment methods developed in recent years. Insights into the process and mechanism of cardiac aging are necessary to protect against age-related diseases, extend lifespan, and reduce the increasing burden of cardiovascular disease in elderly individuals. We believe that research on cardiac aging is entering a new era of unique significance for the progress of clinical medicine and social welfare.
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Affiliation(s)
- Mingjing Yan
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
- Peking University Fifth School of Clinical Medicine, Beijing 100730, China
| | - Shenghui Sun
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Kun Xu
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xiuqing Huang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Lin Dou
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Jing Pang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Weiqing Tang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Tao Shen
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
- Peking University Fifth School of Clinical Medicine, Beijing 100730, China
| | - Jian Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
- Peking University Fifth School of Clinical Medicine, Beijing 100730, China
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15
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Mao K, Zhang G. The role of PARP1 in neurodegenerative diseases and aging. FEBS J 2021; 289:2013-2024. [DOI: 10.1111/febs.15716] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/09/2021] [Accepted: 01/14/2021] [Indexed: 12/12/2022]
Affiliation(s)
- Kanmin Mao
- Key Laboratory of Environmental Health Ministry of Education Department of Toxicology School of Public Health Tongji Medical College Wuhan China
- Institute for Brain Research Collaborative Innovation Center for Brain Science Huazhong University of Science and Technology Wuhan China
| | - Guo Zhang
- Key Laboratory of Environmental Health Ministry of Education Department of Toxicology School of Public Health Tongji Medical College Wuhan China
- Institute for Brain Research Collaborative Innovation Center for Brain Science Huazhong University of Science and Technology Wuhan China
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16
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Zhang X, Zhang X, Huang W, Ge X. The role of heat shock proteins in the regulation of fibrotic diseases. Biomed Pharmacother 2020; 135:111067. [PMID: 33383375 DOI: 10.1016/j.biopha.2020.111067] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/08/2020] [Accepted: 11/20/2020] [Indexed: 12/29/2022] Open
Abstract
Heat shock proteins (HSPs) are key players to restore cell homeostasis and act as chaperones by assisting the folding and assembly of newly synthesized proteins and preventing protein aggregation. Recently, evidence has been accumulating that HSPs have been proven to have other functions except for the classical molecular chaperoning in that they play an important role in a wider range of fibrotic diseases via modulating cytokine induction and inflammation response, including lung fibrosis, liver fibrosis, and idiopathic pulmonary fibrosis. The recruitment of inflammatory cells, a large number of secretion of pro-fibrotic cytokines such as transforming growth factor-β1 (TGF-β1) and increased apoptosis, oxidative stress, and proteasomal system degradation are all events occurring during fibrogenesis, which might be associated with HSPs. However, their role on fibrotic process is not yet fully understood. In this review, we discuss new discoveries regarding the involvement of HSPs in the regulation of organ and tissue fibrosis, and note recent findings suggesting that HSPs may be a promising therapeutic target for improving the current frustrating outcome of fibrotic disorders.
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Affiliation(s)
- Xiaoling Zhang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China; School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, 226019, PR China.
| | - Xiaoyan Zhang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China
| | - Wenmin Huang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China
| | - Xiaoqun Ge
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001, PR China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, PR China.
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17
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Ajoolabady A, Aslkhodapasandhokmabad H, Aghanejad A, Zhang Y, Ren J. Mitophagy Receptors and Mediators: Therapeutic Targets in the Management of Cardiovascular Ageing. Ageing Res Rev 2020; 62:101129. [PMID: 32711157 DOI: 10.1016/j.arr.2020.101129] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/10/2020] [Accepted: 07/19/2020] [Indexed: 12/17/2022]
Abstract
Mitophagy serves as a cardinal regulator in the maintenance of mitochondrial integrity, function, and cardiovascular homeostasis, through the fine control and governance of cellular metabolism, ATP production, redox balance, and mitochondrial quality and quantity control. As a unique form of selective autophagy, mitophagy specifically recognizes and engulfs long-lived or damaged (depolarized) mitochondria through formation of the double-membraned intracellular organelles - mitophagosomes, ultimately resulting in lysosomal degradation. Levels of mitophagy are reported to be altered in pathological settings including cardiovascular diseases and biological ageing although the precise nature of mitophagy change in ageing and ageing-associated cardiovascular deterioration remains poorly defined. Ample clinical and experimental evidence has depicted a convincing tie between cardiovascular ageing and altered mitophagy. In particular, ageing perturbs multiple enigmatic various signal machineries governing mitophagy, mitochondrial quality, and mitochondrial function, contributing to ageing-elicited anomalies in the cardiovascular system. This review will update novel regulatory mechanisms of mitophagy especially in the perspective of advanced ageing, and discuss how mitophagy dysregulation may be linked to cardiovascular abnormalities in ageing. We hope to pave the way for development of new therapeutic strategies against the growing health and socieconomical issue of cardiovascular ageing through targeting mitophagy.
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18
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Li Y, Liu R, Wu J, Li X. Self-eating: friend or foe? The emerging role of autophagy in fibrotic diseases. Am J Cancer Res 2020; 10:7993-8017. [PMID: 32724454 PMCID: PMC7381749 DOI: 10.7150/thno.47826] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 06/16/2020] [Indexed: 01/18/2023] Open
Abstract
Fibrosis occurs in most human organs including the liver, lung, heart and kidney, and is crucial for the progression of most chronic diseases. As an indispensable catabolic process for intracellular quality control and homeostasis, autophagy occurs in most mammalian cells and is implicated in many biological processes including fibrogenesis. Although advances have been made in understanding autophagy process, the potential role of autophagy in fibrotic diseases remains controversial and has recently attracted a great deal of attention. In the current review, we summarize the commonalities of autophagy affecting different types of fibrosis in different organs, including the liver, lung, heart, and kidney as well as in cystic fibrosis, systematically outline the contradictory results and highlight the distinct role of autophagy during the various stages of fibrosis. In summary, the exact role autophagy plays in fibrogenesis depends on specific cell types and different stimuli, and identifying and evaluating the pathogenic contribution of autophagy in fibrogenesis will promote the discovery of novel therapeutic strategies for the clinical management of these fibrotic diseases.
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19
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Ma WX, Li CY, Tao R, Wang XP, Yan LJ. Reductive Stress-Induced Mitochondrial Dysfunction and Cardiomyopathy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5136957. [PMID: 32566086 PMCID: PMC7277050 DOI: 10.1155/2020/5136957] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 04/26/2020] [Accepted: 05/12/2020] [Indexed: 02/05/2023]
Abstract
The goal of this review was to summarize reported studies focusing on cellular reductive stress-induced mitochondrial dysfunction, cardiomyopathy, dithiothreitol- (DTT-) induced reductive stress, and reductive stress-related free radical reactions published in the past five years. Reductive stress is considered to be a double-edged sword in terms of antioxidation and disease induction. As many underlying mechanisms are still unclear, further investigations are obviously warranted. Nonetheless, reductive stress is thought to be caused by elevated levels of cellular reducing power such as NADH, glutathione, and NADPH; and this area of research has attracted increasing attention lately. Albeit, we think there is a need to conduct further studies in identifying more indicators of the risk assessment and prevention of developing heart damage as well as exploring more targets for cardiomyopathy treatment. Hence, it is expected that further investigation of underlying mechanisms of reductive stress-induced mitochondrial dysfunction will provide novel insights into therapeutic approaches for ameliorating reductive stress-induced cardiomyopathy.
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Affiliation(s)
- Wei-Xing Ma
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center (UNTHSC), Fort Worth, Texas 76107, USA
- Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China
| | - Chun-Yan Li
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center (UNTHSC), Fort Worth, Texas 76107, USA
- Shantou University Medical College, 515041 Shantou, Guangdong, China
| | - Ran Tao
- Qingdao Municipal Center for Disease Control & Prevention, 266034 Qingdao, Shandong, China
| | - Xin-Ping Wang
- Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China
| | - Liang-Jun Yan
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center (UNTHSC), Fort Worth, Texas 76107, USA
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20
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Huang D, Peng Y, Li Z, Chen S, Deng X, Shao Z, Ma K. Compression-induced senescence of nucleus pulposus cells by promoting mitophagy activation via the PINK1/PARKIN pathway. J Cell Mol Med 2020; 24:5850-5864. [PMID: 32281308 PMCID: PMC7214186 DOI: 10.1111/jcmm.15256] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 12/11/2022] Open
Abstract
The current research aimed to explore the possible relationship between PINK1/PARKIN-mediated mitophagy and the compression-induced senescence of nucleus pulposus cells (NPCs). Therefore, the stages of senescence in NPCs were measured under compression lasting 0, 24 and 48 hours. The mitophagy-related markers, autophagosomes and mitochondrial membrane potential were tested to determine the levels of PINK1/PARKIN-mediated mitophagy under compression. The PINK1 and PARKIN levels were also measured by immunohistochemistry of human and rat intervertebral disc (IVD) tissues taken at different degenerative stages. A specific mitophagy inhibitor, cyclosporine A (CSA) and a constructed PINK1-shRNA were used to explore the relationship between mitophagy and senescence by down-regulating the PINK1/PARKIN-mediated mitophagy levels. Our results indicated that compression significantly enhanced the senescence of NPCs in a time-dependent manner. Also, PINK1/PARKIN-mediated mitophagy was found to be activated by the extended duration of compression on NPCs as well as the increased degenerative stages of IVD tissues. After inhibition of PINK1/PARKIN-mediated mitophagy by CSA and PINK1-shRNA, the senescence of NPCs induced by compression was strongly rescued. Hence, the excessive degradation of mitochondria in NPCs by mitophagy under continuous compression may accelerate the senescence of NPCs. Regulating PINK1/PARKIN-mediated mitophagy might be a potential therapeutic treatment for IVD degeneration.
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Affiliation(s)
- Donghua Huang
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Department of OrthopedicsMusculoskeletal Tumor CenterThe Second Affiliated Hospital of Zhejiang University School of MedicineHangzhouChina
| | - Yizhong Peng
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Zhiliang Li
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Sheng Chen
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Xiangyu Deng
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Zengwu Shao
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Kaige Ma
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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21
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Protein and Mitochondria Quality Control Mechanisms and Cardiac Aging. Cells 2020; 9:cells9040933. [PMID: 32290135 PMCID: PMC7226975 DOI: 10.3390/cells9040933] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 12/31/2022] Open
Abstract
Cardiovascular disease (CVD) is the number one cause of death in the United States. Advancing age is a primary risk factor for developing CVD. Estimates indicate that 20% of the US population will be ≥65 years old by 2030. Direct expenditures for treating CVD in the older population combined with indirect costs, secondary to lost wages, are predicted to reach $1.1 trillion by 2035. Therefore, there is an eminent need to discover novel therapeutic targets and identify new interventions to delay, lessen the severity, or prevent cardiovascular complications associated with advanced age. Protein and organelle quality control pathways including autophagy/lysosomal and the ubiquitin-proteasome systems, are emerging contributors of age-associated myocardial dysfunction. In general, two findings have sparked this interest. First, strong evidence indicates that cardiac protein degradation pathways are altered in the heart with aging. Second, it is well accepted that damaged and misfolded protein aggregates and dysfunctional mitochondria accumulate in the heart with age. In this review, we will: (i) define the different protein and mitochondria quality control mechanisms in the heart; (ii) provide evidence that each quality control pathway becomes dysfunctional during cardiac aging; and (iii) discuss current advances in targeting these pathways to maintain cardiac function with age.
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22
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Wang Y, Liu J, Kong Q, Cheng H, Tu F, Yu P, Liu Y, Zhang X, Li C, Li Y, Min X, Du S, Ding Z, Liu L. Cardiomyocyte-specific deficiency of HSPB1 worsens cardiac dysfunction by activating NFκB-mediated leucocyte recruitment after myocardial infarction. Cardiovasc Res 2020; 115:154-167. [PMID: 29982352 DOI: 10.1093/cvr/cvy163] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/28/2018] [Indexed: 02/06/2023] Open
Abstract
Aims Inadequate healing after myocardial infarction (MI) leads to heart failure and fatal ventricular rupture, while optimal healing requires timely induction and resolution of inflammation. This study tested the hypothesis that heat shock protein B1 (HSPB1), which limits myocardial inflammation during endotoxemia, modulates wound healing after MI. Methods and results To test this hypothesis, cardiomyocyte-specific HSPB1 knockout (Hspb1-/-) mice were generated using the Cre-LoxP recombination system. MI was induced by ligation of the left anterior descending coronary artery in Hspb1-/- and wild-type (WT) littermates. HSPB1 was up-regulated in cardiomyocytes of WT animals in response to MI, and deficiency of cardiomyocyte HSPB1 increased MI-induced cardiac rupture and mortality within 21 days after MI. Serial echocardiography showed more aggravated remodelling and cardiac dysfunction in Hspb1-/- mice than in WT mice at 1, 3, and 7 days after MI. Decreased collagen deposition and angiogenesis, as well as increased MMP2 and MMP9 activity, were also observed in Hspb1-/- mice compared with WT controls after MI, using immunofluorescence, polarized light microscopy, and zymographic analyses. Notably, Hspb1-/- hearts exhibited enhanced and prolonged leucocyte infiltration, enhanced expression of inflammatory cytokines, and enhanced TLR4/MyD88/NFκB activation compared with WT controls after MI. In-depth molecular analyses in both mice and primary cardiomyocytes demonstrated that cardiomyocyte-specific knockout of HSPB1 increased nuclear factor-κB (NFκB) activation, which promoted the expression of proinflammatory mediators. This led to increased leucocyte recruitment, thereby to excessive inflammation, ultimately resulting in adverse remodelling, cardiac dysfunction, and cardiac rupture following MI. Conclusion These data suggest that HSPB1 acts as a negative regulator of NFκB-mediated leucocyte recruitment and the subsequent inflammation in cardiomyocytes. Cardiomyocyte HSPB1 is required for wound healing after MI and could be a target for myocardial repair in MI patients.
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Affiliation(s)
- Yana Wang
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Guangzhou Rd. 300, Nanjing, China
| | - Jiali Liu
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Guangzhou Rd. 300, Nanjing, China
| | - Qiuyue Kong
- Department of Anesthesiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hao Cheng
- Department of Anesthesiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Fei Tu
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Guangzhou Rd. 300, Nanjing, China
| | - Peng Yu
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Guangzhou Rd. 300, Nanjing, China
| | - Ying Liu
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Guangzhou Rd. 300, Nanjing, China
| | - Xiaojin Zhang
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Guangzhou Rd. 300, Nanjing, China
| | - Chuanfu Li
- Department of Surgery, East Tennessee State University, Johnson City, TN, USA
| | - Yuehua Li
- Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Xinxu Min
- Department of Anesthesiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shuya Du
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Guangzhou Rd. 300, Nanjing, China
| | - Zhengnian Ding
- Department of Anesthesiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Li Liu
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Guangzhou Rd. 300, Nanjing, China.,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China
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23
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Barjaktarovic Z, Merl-Pham J, Braga-Tanaka I, Tanaka S, Hauck SM, Saran A, Mancuso M, Atkinson MJ, Tapio S, Azimzadeh O. Hyperacetylation of Cardiac Mitochondrial Proteins Is Associated with Metabolic Impairment and Sirtuin Downregulation after Chronic Total Body Irradiation of ApoE -/- Mice. Int J Mol Sci 2019; 20:ijms20205239. [PMID: 31652604 PMCID: PMC6829468 DOI: 10.3390/ijms20205239] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/17/2019] [Accepted: 10/19/2019] [Indexed: 12/14/2022] Open
Abstract
Chronic exposure to low-dose ionizing radiation is associated with an increased risk of cardiovascular disease. Alteration in energy metabolism has been suggested to contribute to radiation-induced heart pathology, mitochondrial dysfunction being a hallmark of this disease. The goal of this study was to investigate the regulatory role of acetylation in heart mitochondria in the long-term response to chronic radiation. ApoE-deficient C57Bl/6J mice were exposed to low-dose-rate (20 mGy/day) gamma radiation for 300 days, resulting in a cumulative total body dose of 6.0 Gy. Heart mitochondria were isolated and analyzed using quantitative proteomics. Radiation-induced proteome and acetylome alterations were further validated using immunoblotting, enzyme activity assays, and ELISA. In total, 71 proteins showed peptides with a changed acetylation status following irradiation. The great majority (94%) of the hyperacetylated proteins were involved in the TCA cycle, fatty acid oxidation, oxidative stress response and sirtuin pathway. The elevated acetylation patterns coincided with reduced activity of mitochondrial sirtuins, increased the level of Acetyl-CoA, and were accompanied by inactivation of major cardiac metabolic regulators PGC-1 alpha and PPAR alpha. These observations suggest that the changes in mitochondrial acetylation after irradiation is associated with impairment of heart metabolism. We propose a novel mechanism involved in the development of late cardiac damage following chronic irradiation.
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Affiliation(s)
- Zarko Barjaktarovic
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany.
- Agency for Medicines and Medical Devices of Montenegro, 81000 Podgorica, Montenegro.
| | - Juliane Merl-Pham
- Research Unit Protein Science, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 80939 München, Germany.
| | | | - Satoshi Tanaka
- Institute for Environmental Sciences (IES), Rokkasho, Aomori 039-3213, Japan.
| | - Stefanie M Hauck
- Research Unit Protein Science, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 80939 München, Germany.
| | - Anna Saran
- Laboratory of Biomedical Technologies, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), 76 00196 Rome, Italy.
| | - Mariateresa Mancuso
- Laboratory of Biomedical Technologies, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), 76 00196 Rome, Italy.
| | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany.
- Chair of Radiation Biology, Technical University Munich, 80333 Munich, Germany.
| | - Soile Tapio
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany.
| | - Omid Azimzadeh
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany.
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24
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Blice-Baum AC, Guida MC, Hartley PS, Adams PD, Bodmer R, Cammarato A. As time flies by: Investigating cardiac aging in the short-lived Drosophila model. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1831-1844. [PMID: 30496794 PMCID: PMC6527462 DOI: 10.1016/j.bbadis.2018.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/05/2018] [Accepted: 11/13/2018] [Indexed: 02/06/2023]
Abstract
Aging is associated with a decline in heart function across the tissue, cellular, and molecular levels. The risk of cardiovascular disease grows significantly over time, and as developed countries continue to see an increase in lifespan, the cost of cardiovascular healthcare for the elderly will undoubtedly rise. The molecular basis for cardiac function deterioration with age is multifaceted and not entirely clear, and there is a limit to what investigations can be performed on human subjects or mammalian models. Drosophila melanogaster has emerged as a useful model organism for studying aging in a short timeframe, benefitting from a suite of molecular and genetic tools and displaying highly conserved traits of cardiac senescence. Here, we discuss recent advances in our understanding of cardiac aging and how the fruit fly has aided in these developments.
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Affiliation(s)
| | - Maria Clara Guida
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA, USA.
| | - Paul S Hartley
- Bournemouth University, Department of Life and Environmental Science, Talbot Campus, Fern Barrow, Poole, Dorset BH12 5BB, UK.
| | - Peter D Adams
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA, USA.
| | - Rolf Bodmer
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA, USA.
| | - Anthony Cammarato
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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25
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Ren J, Zhang Y. Targeting Autophagy in Aging and Aging-Related Cardiovascular Diseases. Trends Pharmacol Sci 2018; 39:1064-1076. [PMID: 30458935 DOI: 10.1016/j.tips.2018.10.005] [Citation(s) in RCA: 176] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 09/19/2018] [Accepted: 10/04/2018] [Indexed: 01/19/2023]
Abstract
Aging, an irreversible biological process, serves as an independent risk factor for chronic disease including cancer, pulmonary, neurodegenerative, and cardiovascular diseases. In particular, high morbidity and mortality have been associated with cardiovascular aging, but effective clinical therapeutic remedies are suboptimal for the ever-rising aging population. Recent evidence suggests a unique role for aberrant aggregate clearance and the protein quality control machinery - the process of autophagy - in shortened lifespan, compromised healthspan, and the onset and development of aging-associated cardiovascular diseases. Autophagy degrades and removes long-lived or damaged cellular organelles and proteins, the functions of which decline with advanced aging. Induction of autophagy using rapamycin, resveratrol, nicotinamide derivatives, metformin, urolithin A, or spermidine delays aging, prolongs lifespan, and improves cardiovascular function in aging. Given the ever-rising human lifespan and aging population as well as the prevalence of cardiovascular disease provoked by increased age, it is pertinent to understand the contribution and underlying mechanisms of autophagy and organelle-selective autophagy (e.g., mitophagy) in the regulation of lifespan, healthspan, and cardiovascular aging. Here we dissect the mechanism of action for autophagy failure in aging and discuss the potential rationale of targeting autophagy using pharmacological agents as new avenues in the combating of biological and cardiovascular aging.
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Affiliation(s)
- Jun Ren
- Department of Cardiology, Fudan University Zhongshan Hospital, Shanghai 200032, China; Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA.
| | - Yingmei Zhang
- Department of Cardiology, Fudan University Zhongshan Hospital, Shanghai 200032, China; Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA.
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26
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Siasos G, Tsigkou V, Kosmopoulos M, Theodosiadis D, Simantiris S, Tagkou NM, Tsimpiktsioglou A, Stampouloglou PK, Oikonomou E, Mourouzis K, Philippou A, Vavuranakis M, Stefanadis C, Tousoulis D, Papavassiliou AG. Mitochondria and cardiovascular diseases-from pathophysiology to treatment. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:256. [PMID: 30069458 DOI: 10.21037/atm.2018.06.21] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Mitochondria are the source of cellular energy production and are present in different types of cells. However, their function is especially important for the heart due to the high demands in energy which is achieved through oxidative phosphorylation. Mitochondria form large networks which regulate metabolism and the optimal function is achieved through the balance between mitochondrial fusion and mitochondrial fission. Moreover, mitochondrial function is upon quality control via the process of mitophagy which removes the damaged organelles. Mitochondrial dysfunction is associated with the development of numerous cardiac diseases such as atherosclerosis, ischemia-reperfusion (I/R) injury, hypertension, diabetes, cardiac hypertrophy and heart failure (HF), due to the uncontrolled production of reactive oxygen species (ROS). Therefore, early control of mitochondrial dysfunction is a crucial step in the therapy of cardiac diseases. A number of anti-oxidant molecules and medications have been used but the results are inconsistent among the studies. Eventually, the aim of future research is to design molecules which selectively target mitochondrial dysfunction and restore the capacity of cellular anti-oxidant enzymes.
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Affiliation(s)
- Gerasimos Siasos
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.,Division of Cardiovascular, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Vasiliki Tsigkou
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Marinos Kosmopoulos
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Dimosthenis Theodosiadis
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Spyridon Simantiris
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Nikoletta Maria Tagkou
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Athina Tsimpiktsioglou
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Panagiota K Stampouloglou
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Evangelos Oikonomou
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Konstantinos Mourouzis
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Anastasios Philippou
- Department of Experimental Physiology, Medical School, National and Kapodistrian University of Athens, Greece
| | - Manolis Vavuranakis
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | | | - Dimitris Tousoulis
- Department of Cardiology, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
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27
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An Intervention Target for Myocardial Fibrosis: Autophagy. BIOMED RESEARCH INTERNATIONAL 2018; 2018:6215916. [PMID: 29850542 PMCID: PMC5911341 DOI: 10.1155/2018/6215916] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 02/07/2018] [Accepted: 02/19/2018] [Indexed: 02/07/2023]
Abstract
Myocardial fibrosis (MF) is the result of metabolic imbalance of collagen synthesis and metabolism, which is widespread in various cardiovascular diseases. Autophagy is a lysosomal degradation pathway which is highly conserved. In recent years, research on autophagy has been increasing and the researchers have also become cumulatively aware of the specified association between autophagy and MF. This review highlights the role of autophagy in MF and the potential effects through the administration of medicine.
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28
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Velten M, Heyob KM, Wold LE, Rogers LK. Perinatal inflammation induces sex-related differences in cardiovascular morbidities in mice. Am J Physiol Heart Circ Physiol 2018; 314:H573-H579. [PMID: 29212791 PMCID: PMC5899262 DOI: 10.1152/ajpheart.00484.2017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/29/2017] [Accepted: 11/30/2017] [Indexed: 01/03/2023]
Abstract
Sex-related differences in cardiovascular health and disease have been identified, with males having a higher incidence of cardiovascular events but females more likely to develop arrhythmias. Adverse fetal environments are now accepted as a cause for the development of cardiovascular diseases in adulthood, but sex-related differences in response to adverse fetal environments have not been extensively explored. The combination of both in utero and postnatal exposure to inflammation is highly relevant for the infant that is born preterm or has clinical complications at birth or in early postnatal life. We have previously observed cardiac contractile deficiencies and dysregulation of Ca2+-handling proteins in our model of maternal lipopolysaccharide (LPS) and neonatal hyperoxia exposures (LPS/O2). This investigation tested the hypothesis that there are sex-related differences in the adult pathologies after exposure to perinatal inflammation. Using pressure-volume assessments, males exposed to LPS/O2 had more pronounced contractile deficiencies than similarly exposed females, but females tended to have long PR intervals. While both sexes demonstrated decreases in α-myosin heavy chain and connexin 43 after LPS/O2 exposure compared with saline/room air controls, females indicated aberrant increases in microRNA 208a, microRNA 208b, and desmin expression. Our study supports our hypothesis that early life exposure to inflammation results in sex-dependent deficits in cardiovascular function. NEW & NOTEWORTHY Sex-specific differences in cardiovascular disease are recognized, but the mechanisms and origins are not well understood. Adverse maternal environments can influence cardiac development and later cardiovascular disease. This study identifies sex-dependent differences in cardiac disease associated with perinatal inflammation.
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Affiliation(s)
- Markus Velten
- Department of Anesthesiology and Intensive Care Medicine, Rheinische Friedrich Wilhelms University, University Medical Center , Bonn , Germany
| | - Kathryn M Heyob
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, The Ohio State University , Columbus, Ohio
| | | | - Lynette K Rogers
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, The Ohio State University , Columbus, Ohio
- The Ohio State University , Columbus, Ohio
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29
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Altara R, Zouein FA, Brandão RD, Bajestani SN, Cataliotti A, Booz GW. In Silico Analysis of Differential Gene Expression in Three Common Rat Models of Diastolic Dysfunction. Front Cardiovasc Med 2018; 5:11. [PMID: 29556499 PMCID: PMC5850854 DOI: 10.3389/fcvm.2018.00011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 02/05/2018] [Indexed: 12/13/2022] Open
Abstract
Standard therapies for heart failure with preserved ejection fraction (HFpEF) have been unsuccessful, demonstrating that the contribution of the underlying diastolic dysfunction pathophysiology differs from that of systolic dysfunction in heart failure and currently is far from being understood. Complicating the investigation of HFpEF is the contribution of several comorbidities. Here, we selected three established rat models of diastolic dysfunction defined by three major risk factors associated with HFpEF and researched their commonalities and differences. The top differentially expressed genes in the left ventricle of Dahl salt sensitive (Dahl/SS), spontaneous hypertensive heart failure (SHHF), and diabetes 1 induced HFpEF models were derived from published data in Gene Expression Omnibus and used for a comprehensive interpretation of the underlying pathophysiological context of each model. The diversity of the underlying transcriptomic of the heart of each model is clearly observed by the different panel of top regulated genes: the diabetic model has 20 genes in common with the Dahl/SS and 15 with the SHHF models. Advanced analytics performed in Ingenuity Pathway Analysis (IPA®) revealed that Dahl/SS heart tissue transcripts triggered by upstream regulators lead to dilated cardiomyopathy, hypertrophy of heart, arrhythmia, and failure of heart. In the heart of SHHF, a total of 26 genes were closely linked to cardiovascular disease including cardiotoxicity, pericarditis, ST-elevated myocardial infarction, and dilated cardiomyopathy. IPA Upstream Regulator analyses revealed that protection of cardiomyocytes is hampered by inhibition of the ERBB2 plasma membrane-bound receptor tyrosine kinases. Cardioprotective markers such as natriuretic peptide A (NPPA), heat shock 27 kDa protein 1 (HSPB1), and angiogenin (ANG) were upregulated in the diabetes 1 induced model; however, the model showed a different underlying mechanism with a majority of the regulated genes involved in metabolic disorders. In conclusion, our findings suggest that multiple mechanisms may contribute to diastolic dysfunction and HFpEF, and thus drug therapies may need to be guided more by phenotypic characteristics of the cardiac remodeling events than by the underlying molecular processes.
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Affiliation(s)
- Raffaele Altara
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, Oslo, Norway.,Department of Pathology, School of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
| | - Fouad A Zouein
- Faculty of Medicine, Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
| | - Rita Dias Brandão
- Department of Clinical Genetics, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Saeed N Bajestani
- Department of Pathology, School of Medicine, University of Mississippi Medical Center, Jackson, MS, United States.,Department of Ophthalmology, School of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
| | - Alessandro Cataliotti
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, Oslo, Norway
| | - George W Booz
- Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
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30
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ANO1 inhibits cardiac fibrosis after myocardial infraction via TGF-β/smad3 pathway. Sci Rep 2017; 7:2355. [PMID: 28539652 PMCID: PMC5443797 DOI: 10.1038/s41598-017-02585-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 04/12/2017] [Indexed: 11/25/2022] Open
Abstract
As a newly identified factor in calcium-activated chloride channel, ANO1 participates in various physiological processes like proliferation and differentiation, and expresses in human cardiac fibroblasts. In this experiment, we investigated the function of ANO1 in cardiac fibrosis after myocardial infraction (MI) with methods of Western blotting, Quantitative real-time PCR (qRT-PCR), metabolic reduction of 3-(4,5-dimethylthiozol-2-yl)-2, 5-diphenyltetrazo-lium bromide (MTT), immunofluorescence and confocal imaging, and Masson’s trichrome staining. The results showed that the expression of ANO1 significantly increased in neonatal rats’ cardiac fibroblasts after hypoxia and in cardiac tissues after MI. After ANO1 over-expression, cardiac fibrosis was reduced in vitro and in vivo. Moreover, the expression of TGF-β and p-smad3 declined after ANO1over-expression in cardiac fiborblasts. In conclusion, ANO1 inhibits cardiac fibrosis after MI via TGF-β/smad3 pathway in rats.
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