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Zhang H, Muhetarijiang M, Chen RJ, Hu X, Han J, Zheng L, Chen T. Mitochondrial Dysfunction: A Roadmap for Understanding and Tackling Cardiovascular Aging. Aging Dis 2024:AD.2024.0058. [PMID: 38739929 DOI: 10.14336/ad.2024.0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024] Open
Abstract
Cardiovascular aging is a progressive remodeling process constituting a variety of cellular and molecular alterations that are closely linked to mitochondrial dysfunction. Therefore, gaining a deeper understanding of the changes in mitochondrial function during cardiovascular aging is crucial for preventing cardiovascular diseases. Cardiac aging is accompanied by fibrosis, cardiomyocyte hypertrophy, metabolic changes, and infiltration of immune cells, collectively contributing to the overall remodeling of the heart. Similarly, during vascular aging, there is a profound remodeling of blood vessel structure. These remodeling present damage to endothelial cells, increased vascular stiffness, impaired formation of new blood vessels (angiogenesis), the development of arteriosclerosis, and chronic vascular inflammation. This review underscores the role of mitochondrial dysfunction in cardiac aging, exploring its impact on fibrosis and myocardial alterations, metabolic remodeling, immune response remodeling, as well as in vascular aging in the heart. Additionally, we emphasize the significance of mitochondria-targeted therapies in preventing cardiovascular diseases in the elderly.
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Affiliation(s)
- Han Zhang
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Mairedan Muhetarijiang
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Ryan J Chen
- School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaosheng Hu
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jie Han
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Liangrong Zheng
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Ting Chen
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Affiliated First Hospital of Ningbo University, Ningbo, China
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2
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Zhang S, Qiu B, Lv B, Yang G, Tao Y, Hu Y, Li K, Yu X, Tang C, Du J, Jin H, Huang Y. Endogenous sulfur dioxide deficiency as a driver of cardiomyocyte senescence through abolishing sulphenylation of STAT3 at cysteine 259. Redox Biol 2024; 71:103124. [PMID: 38503216 PMCID: PMC10963856 DOI: 10.1016/j.redox.2024.103124] [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: 02/12/2024] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 03/21/2024] Open
Abstract
OBJECTIVE Cardiomyocyte senescence is an important contributor to cardiovascular diseases and can be induced by stressors including DNA damage, oxidative stress, mitochondrial dysfunction, epigenetic regulation, etc. However, the underlying mechanisms for the development of cardiomyocyte senescence remain largely unknown. Sulfur dioxide (SO2) is produced endogenously by aspartate aminotransferase 2 (AAT2) catalysis and plays an important regulatory role in the development of cardiovascular diseases. The present study aimed to explore the effect of endogenous SO2 on cardiomyocyte senescence and the underlying molecular mechanisms. APPROACH AND RESULTS We interestingly found a substantial reduction in the expression of AAT2 in the heart of aged mice in comparison to young mice. AAT2-knockdowned cardiomyocytes exhibited reduced SO2 content, elevated expression levels of Tp53, p21Cip/Waf, and p16INk4a, enhanced SA-β-Gal activity, and elevated level of γ-H2AX foci. Notably, supplementation with a SO2 donor ameliorated the spontaneous senescence phenotype and DNA damage caused by AAT2 deficiency in cardiomyocytes. Mechanistically, AAT2 deficiency suppressed the sulphenylation of signal transducer and activator of transcription 3 (STAT3) facilitated its nuclear translocation and DNA-binding capacity. Conversely, a mutation in the cysteine (Cys) 259 residue of STAT3 blocked SO2-induced STAT3 sulphenylation and subsequently prevented the inhibitory effect of SO2 on STAT3-DNA-binding capacity, DNA damage, and cardiomyocyte senescence. Additionally, cardiomyocyte (cm)-specific AAT2 knockout (AAT2cmKO) mice exhibited a deterioration in cardiac function, cardiomegaly, and cardiac aging, whereas supplementation with SO2 donors mitigated the cardiac aging and remodeling phenotypes in AAT2cmKO mice. CONCLUSION Downregulation of the endogenous SO2/AAT2 pathway is a crucial pathogenic mechanism underlying cardiomyocyte senescence. Endogenous SO2 modifies STAT3 by sulphenylating Cys259, leading to the inhibition of DNA damage and the protection against cardiomyocyte senescence.
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Affiliation(s)
- Shangyue Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Bingquan Qiu
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Boyang Lv
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Guosheng Yang
- Laboratory Animal Facility, Peking University First Hospital, Beijing, 100034, China
| | - Yinghong Tao
- Laboratory Animal Facility, Peking University First Hospital, Beijing, 100034, China
| | - Yongyan Hu
- Laboratory Animal Facility, Peking University First Hospital, Beijing, 100034, China
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaoqi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, 100191, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China.
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China.
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Sweeney M, Cook SA, Gil J. Therapeutic opportunities for senolysis in cardiovascular disease. FEBS J 2023; 290:1235-1255. [PMID: 35015342 PMCID: PMC10952275 DOI: 10.1111/febs.16351] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/20/2021] [Accepted: 01/10/2022] [Indexed: 12/19/2022]
Abstract
Cellular senescence within the cardiovascular system has, until recently, been understudied and unappreciated as a factor in the development of age-related cardiovascular diseases such as heart failure, myocardial infarction and atherosclerosis. This is in part due to challenges with defining senescence within post-mitotic cells such as cardiomyocytes. However, recent evidence has demonstrated senescent-like changes, including a senescence-associated secretory phenotype (SASP), in cardiomyocytes in response to ageing and cell stress. Other replicating cells, including fibroblasts and vascular smooth muscle cells, within the cardiovascular system have also been shown to undergo senescence and contribute to disease pathogenesis. These findings coupled with the emergence of senolytic therapies, to target and eliminate senescent cells, have provided fascinating new avenues for management of several age-related cardiovascular diseases with high prevalence. In this review, we discuss the role of senescent cells within the cardiovascular system and highlight the contribution of senescence cells to common cardiovascular diseases. We discuss the emerging role for senolytics in cardiovascular disease management while highlighting important aspects of senescence biology which must be clarified before the potential of senolytics can be fully realized.
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Affiliation(s)
- Mark Sweeney
- MRC London Institute of Medical Sciences (LMS)LondonUK
- Institute of Clinical Sciences (ICS)Faculty of MedicineImperial College LondonUK
- Wellcome Trust / National Institute of Health Research 4i Clinical Research FellowLondonUK
| | - Stuart A. Cook
- MRC London Institute of Medical Sciences (LMS)LondonUK
- Institute of Clinical Sciences (ICS)Faculty of MedicineImperial College LondonUK
| | - Jesús Gil
- MRC London Institute of Medical Sciences (LMS)LondonUK
- Institute of Clinical Sciences (ICS)Faculty of MedicineImperial College LondonUK
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4
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Li T, Meng Y, Ding P, Wang H, Liu J, Xia C, Chen Y, Li J. Pathological implication of CaMKII in NF-κB pathway and SASP during cardiomyocytes senescence. Mech Ageing Dev 2023; 209:111758. [PMID: 36462537 DOI: 10.1016/j.mad.2022.111758] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 11/06/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022]
Abstract
Senescence-associated secretory phenotype (SASP) could be developed during heart ageing. But the role of SASP in cardiomyocytes senescence and its molecular mechanism remains undetermined. In this study, we observed elevated Ca2+/calmodulin -dependent protein kinase II (CaMKII) activation in both physiological aged heart and premature senescent cardiomyocytes. Notably, we confirmed the gradual SASP development induced by NF-κB activation in long-term cultured cardiomyocytes. Transgenic inhibition of CaMKII in mice (AC3-I mice) alleviated the NF-κB activation, chronic sterile inflammation and ageing-associated cardiomyopathy. Correspondingly, pharmacological inhibition of CaMKII with KN93 mitigated SASP and hindered cardiomyocytes senescence. Meanwhile, increased NF-κB activation and exacerbated cardiomyocytes senescence were observed with transgenic CaMKII activation. Collectively, our results indicated that the increased CaMKII activation accompanying ageing could aggravate NF-κB activation and SASP development and facilitate cardiomyocytes senescence and heart ageing.
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Affiliation(s)
- Ting Li
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yidi Meng
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peiwu Ding
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongfei Wang
- Department of Cardiac Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Liu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chaorui Xia
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Chen
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingdong Li
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Glycan characteristics of human heart constituent cells maintaining organ function: relatively stable glycan profiles in cellular senescence. Biogerontology 2021; 22:623-637. [PMID: 34637040 PMCID: PMC8566412 DOI: 10.1007/s10522-021-09940-z] [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: 06/10/2021] [Accepted: 10/07/2021] [Indexed: 11/22/2022]
Abstract
Cell surface glycoproteins, which are good indicators of cellular types and biological function; are suited for cell evaluation. Tissue remodeling using various cells is a key feature of regenerative therapy. For artificial heart remodeling, a mixture of heart constituent cells has been investigated for organ assembly, however, the cellular characteristics remain unclear. In this study, the glycan profiles of human cardiomyocytes (HCMs), human cardiac fibroblasts (HCFs), and human vascular endothelial cells (ECs) were analyzed using evanescent-field lectin microarray analysis, a tool of glycan profiling, to clarify the required cellular characteristics. We found that ECs had more “α1-2fucose” and “core α1-6fucose” residues than other cells, and that “α2-6sialic acid” residue was more abundant in ECs and HCMs than in HCFs. HCFs showed higher abundance of “β-galactose” and “β-N-acetylgalactosamine” residues on N-glycan and O-glycan, respectively, compared to other cells. Interestingly, cardiac glycan profiles were insignificantly changed with cellular senescence. The residues identified in this study may participate in organ maintenance by contributing to the preservation of glycan components. Therefore, future studies should investigate the roles of glycans in optimal tissue remodeling since identifying cellular characteristics is important for the development of regenerative therapies.
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Zhao LD, Bie LY, Hu L, Zhu ZH, Meng XH, Cong LL, Zhang S, Ma N, Xiao JH. IGF-1 induces cellular senescence in rat articular chondrocytes via Akt pathway activation. Exp Ther Med 2020; 20:49. [PMID: 32952639 PMCID: PMC7480142 DOI: 10.3892/etm.2020.9177] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 06/20/2019] [Indexed: 12/13/2022] Open
Abstract
Cellular senescence decreases cell proliferation over time and is characterized by typical markers, including larger cell volume, a flattened morphology, irreversible cell cycle arrest, augmentation of senescence-associated β-galactosidase (SA-β-gal) activity and senescence-associated secretory phenotype. A variety of factors are implicated in the process of cellular aging, which mediates an organisms' lifespan. Insulin-like growth factor-1 (IGF-1) serves an essential role in regulating cell growth, division, proliferation and senescence. In the present study, the role of IGF-1 and the downstream Akt signaling pathway in rat articular chondrocyte senescence was assessed. The results of the current study demonstrated that IGF-1 promoted cellular senescence in rat articular chondrocytes via activation of SA-β-gal and the upregulation of p53 and p21 mRNA and protein levels. IGF-1 enhanced Akt phosphorylation and treatment with Akt inhibitor, MK-2206, significantly suppressed the induction of these markers. Overall, the results indicated the involvement of IGF-1 and Akt in senescence exhibited by rat articular chondrocytes.
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Affiliation(s)
- Li-Dong Zhao
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Lian-Yu Bie
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Lan Hu
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Zi-Han Zhu
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Xing-Hua Meng
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Lin-Lin Cong
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Shai Zhang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Ning Ma
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Jian-Hua Xiao
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
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7
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Häseli S, Deubel S, Jung T, Grune T, Ott C. Cardiomyocyte Contractility and Autophagy in a Premature Senescence Model of Cardiac Aging. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8141307. [PMID: 32377307 PMCID: PMC7180990 DOI: 10.1155/2020/8141307] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/15/2020] [Accepted: 03/24/2020] [Indexed: 02/06/2023]
Abstract
Globally, cardiovascular diseases are the leading cause of death in the aging population. While the clinical pathology of the aging heart is thoroughly characterized, underlying molecular mechanisms are still insufficiently clarified. The aim of the present study was to establish an in vitro model system of cardiomyocyte premature senescence, culturing heart muscle cells derived from neonatal C57Bl/6J mice for 21 days. Premature senescence of neonatal cardiac myocytes was induced by prolonged culture time in an oxygen-rich postnatal environment. Age-related changes in cellular function were determined by senescence-associated β-galactosidase activity, increasing presence of cell cycle regulators, such as p16, p53, and p21, accumulation of protein aggregates, and restricted proteolysis in terms of decreasing (macro-)autophagy. Furthermore, the culture system was functionally characterized for alterations in cell morphology and contractility. An increase in cellular size associated with induced expression of atrial natriuretic peptides demonstrated a stress-induced hypertrophic phenotype in neonatal cardiomyocytes. Using the recently developed analytical software tool Myocyter, we were able to show a spatiotemporal constraint in spontaneous contraction behavior during cultivation. Within the present study, the 21-day culture of neonatal cardiomyocytes was defined as a functional model system of premature cardiac senescence to study age-related changes in cardiomyocyte contractility and autophagy.
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Affiliation(s)
- Steffen Häseli
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Nuthetal 14558, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin 13357, Germany
| | - Stefanie Deubel
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Nuthetal 14558, Germany
| | - Tobias Jung
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Nuthetal 14558, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin 13357, Germany
| | - Tilman Grune
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Nuthetal 14558, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin 13357, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg 85764, Germany
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, Nuthetal 14558, Germany
- University of Potsdam, Institute of Nutrition, Nuthetal 14588, Germany
| | - Christiane Ott
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Nuthetal 14558, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin 13357, Germany
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8
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Riessland M, Kolisnyk B, Kim TW, Cheng J, Ni J, Pearson JA, Park EJ, Dam K, Acehan D, Ramos-Espiritu LS, Wang W, Zhang J, Shim JW, Ciceri G, Brichta L, Studer L, Greengard P. Loss of SATB1 Induces p21-Dependent Cellular Senescence in Post-mitotic Dopaminergic Neurons. Cell Stem Cell 2019; 25:514-530.e8. [PMID: 31543366 DOI: 10.1016/j.stem.2019.08.013] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 04/09/2019] [Accepted: 08/16/2019] [Indexed: 01/07/2023]
Abstract
Cellular senescence is a mechanism used by mitotic cells to prevent uncontrolled cell division. As senescent cells persist in tissues, they cause local inflammation and are harmful to surrounding cells, contributing to aging. Generally, neurodegenerative diseases, such as Parkinson's, are disorders of aging. The contribution of cellular senescence to neurodegeneration is still unclear. SATB1 is a DNA binding protein associated with Parkinson's disease. We report that SATB1 prevents cellular senescence in post-mitotic dopaminergic neurons. Loss of SATB1 causes activation of a cellular senescence transcriptional program in dopamine neurons both in human stem cell-derived dopaminergic neurons and in mice. We observed phenotypes that are central to cellular senescence in SATB1 knockout dopamine neurons in vitro and in vivo. Moreover, we found that SATB1 directly represses expression of the pro-senescence factor p21 in dopaminergic neurons. Our data implicate senescence of dopamine neurons as a contributing factor in the pathology of Parkinson's disease.
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Affiliation(s)
- Markus Riessland
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA.
| | - Benjamin Kolisnyk
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Tae Wan Kim
- Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY 10065, USA
| | - Jia Cheng
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Jason Ni
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Jordan A Pearson
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Emily J Park
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Kevin Dam
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Devrim Acehan
- Electron Microscopy Resource Center, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Lavoisier S Ramos-Espiritu
- High-Throughput and Spectroscopy Resource Center, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Wei Wang
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Jack Zhang
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Jae-Won Shim
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, Korea
| | - Gabriele Ciceri
- Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY 10065, USA
| | - Lars Brichta
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
| | - Lorenz Studer
- Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY 10065, USA; Developmental Biology Program, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY 10065, USA.
| | - Paul Greengard
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA
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Bonda TA, Dziemidowicz M, Cieslinska M, Tarasiuk E, Wawrusiewicz-Kurylonek N, Bialuk I, Winnicka MM, Kaminski KA. Interleukin 6 Knockout Inhibits Aging-Related Accumulation of p53 in the Mouse Myocardium. J Gerontol A Biol Sci Med Sci 2019; 74:176-182. [PMID: 29718116 DOI: 10.1093/gerona/gly105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 04/27/2018] [Indexed: 10/08/2023] Open
Abstract
Interleukin 6 (IL6) and p53 are linked by mutual regulatory mechanisms and are both upregulated in aging. The aim of this study was to evaluate the effects of aging and IL6 on expression of p53 in the mouse heart. Male C57BL6/J wild-type and IL6 knockout mice at the age of 4-5 months (young adult) and 24-30 months (old) were used. Myocardial expression of proteins such as p53, p21, Mdm2, and phospho-Akt/Akt was estimated using Western blotting and expression of p53 and p21 mRNA using real-time polymerase chain reaction. Expression of p53 protein was lower in IL6 knockout hearts than in wild-type hearts. Aging caused significant upregulation of p53 protein level; however, it was significantly higher in old wild-type hearts than in old IL6 knockout hearts (p < .05). Similar p53 mRNA levels in all groups implied IL6 influence on age-related proteasomal degradation of p53. Localization of p53 mainly in the extranuclear compartment and lack of p21 upregulation in aged hearts may suggest quenched transcriptional activity of p53 despite increased abundance of p53. We conclude that lack of IL6 attenuates expression of p53 protein in the hearts of young mice and diminishes its accumulation with aging by post-transcriptional mechanisms; however, this is not related to altered phenotype of aging heart.
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Affiliation(s)
- Tomasz A Bonda
- Department of General and Experimental Pathology, Medical University of Bialystok, Poland
| | - Magdalena Dziemidowicz
- Department of General and Experimental Pathology, Medical University of Bialystok, Poland
| | - Magdalena Cieslinska
- Department of General and Experimental Pathology, Medical University of Bialystok, Poland
| | - Ewa Tarasiuk
- Department of Cardiology, Medical University of Bialystok, Poland
| | | | - Izabela Bialuk
- Department of General and Experimental Pathology, Medical University of Bialystok, Poland
| | - Maria M Winnicka
- Department of General and Experimental Pathology, Medical University of Bialystok, Poland
| | - Karol A Kaminski
- Department of Cardiology, Medical University of Białystok, Poland
- Department of Population Medicine and Civilization Diseases Prevention, Medical University of Białystok, Poland
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10
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Mária J, Ingrid Ž. Effects of bioactive compounds on senescence and components of senescence associated secretory phenotypes in vitro. Food Funct 2017; 8:2394-2418. [DOI: 10.1039/c7fo00161d] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Senescence is a permanent cell cycle arrest that is accompanied by changes in cell morphology and physiology occurringin vitroandin vivo.
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Affiliation(s)
- Janubová Mária
- Institute of Medical Chemistry
- Biochemistry and Clinical Biochemistry
- Medical Faculty
- Comenius University
- 813 72 Bratislava
| | - Žitňanová Ingrid
- Institute of Medical Chemistry
- Biochemistry and Clinical Biochemistry
- Medical Faculty
- Comenius University
- 813 72 Bratislava
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