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Mas-Bargues C. Mitochondria pleiotropism in stem cell senescence: Mechanisms and therapeutic approaches. Free Radic Biol Med 2023; 208:657-671. [PMID: 37739140 DOI: 10.1016/j.freeradbiomed.2023.09.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/10/2023] [Accepted: 09/18/2023] [Indexed: 09/24/2023]
Abstract
Aging is a complex biological process characterized by a progressive decline in cellular and tissue function, ultimately leading to organismal aging. Stem cells, with their regenerative potential, play a crucial role in maintaining tissue homeostasis and repair throughout an organism's lifespan. Mitochondria, the powerhouses of the cell, have emerged as key players in the aging process, impacting stem cell function and contributing to age-related tissue dysfunction. Here are discuss the mechanisms through which mitochondria influence stem cell fate decisions, including energy production, metabolic regulation, ROS signalling, and epigenetic modifications. Therefore, this review highlights the role of mitochondria in driving stem cell senescence and the subsequent impact on tissue function, leading to overall organismal aging and age-related diseases. Finally, we explore potential anti-aging therapies targeting mitochondrial health and discuss their implications for promoting healthy aging. This comprehensive review sheds light on the critical interplay between mitochondrial function, stem cell senescence, and organismal aging, offering insights into potential strategies for attenuating age-related decline and promoting healthy longevity.
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Affiliation(s)
- Cristina Mas-Bargues
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable-Instituto de Salud Carlos III (CIBERFES-ISCIII), INCLIVA, 46010, Valencia, Spain.
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2
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Zeng W, Zhang W, Tse EHY, Liu J, Dong A, Lam KSW, Luan S, Kung WH, Chan TC, Cheung TH. Restoration of CPEB4 prevents muscle stem cell senescence during aging. Dev Cell 2023; 58:1383-1398.e6. [PMID: 37321216 DOI: 10.1016/j.devcel.2023.05.012] [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: 12/27/2021] [Revised: 03/24/2023] [Accepted: 05/19/2023] [Indexed: 06/17/2023]
Abstract
Age-associated impairments in adult stem cell functions correlate with a decline in somatic tissue regeneration capacity. However, the mechanisms underlying the molecular regulation of adult stem cell aging remain elusive. Here, we provide a proteomic analysis of physiologically aged murine muscle stem cells (MuSCs), illustrating a pre-senescent proteomic signature. During aging, the mitochondrial proteome and activity are impaired in MuSCs. In addition, the inhibition of mitochondrial function results in cellular senescence. We identified an RNA-binding protein, CPEB4, downregulated in various aged tissues, which is required for MuSC functions. CPEB4 regulates the mitochondrial proteome and activity through mitochondrial translational control. MuSCs devoid of CPEB4 induced cellular senescence. Importantly, restoring CPEB4 expression rescued impaired mitochondrial metabolism, improved geriatric MuSC functions, and prevented cellular senescence in various human cell lines. Our findings provide the basis for the possibility that CPEB4 regulates mitochondrial metabolism to govern cellular senescence, with an implication of therapeutic intervention for age-related senescence.
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Affiliation(s)
- Wenshu Zeng
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Wenxin Zhang
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Erin H Y Tse
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Jing Liu
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Anqi Dong
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Kim S W Lam
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Shaoyuan Luan
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Wai Hing Kung
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Tsz Ching Chan
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Tom H Cheung
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Hong Kong, China; Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China; Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, Shenzhen-Hong Kong Institute of Brain Science, HKUST Shenzhen Research Institute, Shenzhen, China.
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3
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Nousis L, Kanavaros P, Barbouti A. Oxidative Stress-Induced Cellular Senescence: Is Labile Iron the Connecting Link? Antioxidants (Basel) 2023; 12:1250. [PMID: 37371980 DOI: 10.3390/antiox12061250] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Cellular senescence, a cell state characterized by a generally irreversible cell cycle arrest, is implicated in various physiological processes and a wide range of age-related pathologies. Oxidative stress, a condition caused by an imbalance between the production and the elimination of reactive oxygen species (ROS) in cells and tissues, is a common driver of cellular senescence. ROS encompass free radicals and other molecules formed as byproducts of oxygen metabolism, which exhibit varying chemical reactivity. A prerequisite for the generation of strong oxidizing ROS that can damage macromolecules and impair cellular function is the availability of labile (redox-active) iron, which catalyzes the formation of highly reactive free radicals. Targeting labile iron has been proven an effective strategy to counteract the adverse effects of ROS, but evidence concerning cellular senescence is sparse. In the present review article, we discuss aspects of oxidative stress-induced cellular senescence, with special attention to the potential implication of labile iron.
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Affiliation(s)
- Lambros Nousis
- Department of Hygiene and Epidemiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
| | - Panagiotis Kanavaros
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
| | - Alexandra Barbouti
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
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4
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Araki C, Takemoto D, Kitagawa Y, Tateishi N, Rogi T, Izumo T, Kawamoto S, Shibata H, Hara E, Nakai M. Sesamin Metabolites Suppress the Induction of Cellular Senescence. Nutrients 2023; 15:nu15071627. [PMID: 37049468 PMCID: PMC10096530 DOI: 10.3390/nu15071627] [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: 02/20/2023] [Revised: 03/16/2023] [Accepted: 03/23/2023] [Indexed: 03/30/2023] Open
Abstract
Cellular senescence induces inflammation and is now considered one of the causes of organismal aging. Accumulating evidence indicates that age-related deterioration of mitochondrial function leads to an increase in reactive oxygen species (ROS) and DNA damage, which in turn causes cellular senescence. Thus, it is important to maintain mitochondrial function and suppress oxidative stress in order to inhibit the accumulation of senescent cells. Sesamin and its isomer episesamin are types of lignans found in sesame oil, and after being metabolized in the liver, their metabolites have been reported to exhibit antioxidant properties. However, their effects on cellular senescence remain unknown. In this study, the effects of sesamin, episesamin, and their metabolites SC1 and EC1-2 on replicative senescence were evaluated using human diploid lung fibroblasts, and TIG-3 cells. The results showed that sesamin and episesamin treatment had no effect on proliferative capacity compared to the untreated late passage group, whereas SC1 and EC1-2 treatment improved proliferative capacity and mitigated DNA damage of TIG-3 cells. Furthermore, other cellular senescence markers, such as senescence-associated secretory phenotype (SASP), mitochondria-derived ROS, and mitochondrial function (ROS/ATP ratio) were also reduced by SC1 and EC1-2 treatment. These results suggest that SC1 and EC1-2 can maintain proper mitochondrial function and suppress the induction of cellular senescence.
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Affiliation(s)
- Chie Araki
- Institute for Health Care Science, Suntory Wellness Limited, Kyoto 619-0284, Japan
| | - Daisuke Takemoto
- Institute for Health Care Science, Suntory Wellness Limited, Kyoto 619-0284, Japan
- Correspondence: ; Tel.: +81-50-3182-0661
| | - Yoshinori Kitagawa
- Institute for Health Care Science, Suntory Wellness Limited, Kyoto 619-0284, Japan
| | - Norifumi Tateishi
- Institute for Health Care Science, Suntory Wellness Limited, Kyoto 619-0284, Japan
| | - Tomohiro Rogi
- Institute for Health Care Science, Suntory Wellness Limited, Kyoto 619-0284, Japan
| | - Takayuki Izumo
- Institute for Health Care Science, Suntory Wellness Limited, Kyoto 619-0284, Japan
| | - Shimpei Kawamoto
- Departments of Molecular Microbiology, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Hiroshi Shibata
- Institute for Health Care Science, Suntory Wellness Limited, Kyoto 619-0284, Japan
| | - Eiji Hara
- Departments of Molecular Microbiology, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Masaaki Nakai
- Institute for Health Care Science, Suntory Wellness Limited, Kyoto 619-0284, Japan
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5
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Martini H, Passos JF. Cellular senescence: all roads lead to mitochondria. FEBS J 2023; 290:1186-1202. [PMID: 35048548 PMCID: PMC9296701 DOI: 10.1111/febs.16361] [Citation(s) in RCA: 77] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/11/2022] [Accepted: 01/18/2022] [Indexed: 01/10/2023]
Abstract
Senescence is a multi-functional cell fate, characterized by an irreversible cell-cycle arrest and a pro-inflammatory phenotype, commonly known as the senescence-associated secretory phenotype (SASP). Emerging evidence indicates that accumulation of senescent cells in multiple tissues drives tissue dysfunction and several age-related conditions. This has spurred the academic community and industry to identify new therapeutic interventions targeting this process. Mitochondrial dysfunction is an often-unappreciated hallmark of cellular senescence which plays important roles not only in the senescence growth arrest but also in the development of the SASP and resistance to cell-death. Here, we review the evidence that supports a role for mitochondria in the development of senescence and describe the underlying mechanisms. Finally, we propose that a detailed road map of mitochondrial biology in senescence will be crucial to guide the future development of senotherapies.
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Affiliation(s)
- Hélène Martini
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905 USA
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, 55905 USA
| | - João F. Passos
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905 USA
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, 55905 USA
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6
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Suprihadi A, Pustimbara A, Ogura SI. 5-aminolevulinic acid and sodium ferrous citrate decreased cell viability of gastric cancer cells by enhanced ROS generation through improving COX activity. Photodiagnosis Photodyn Ther 2022; 40:103055. [PMID: 35934181 DOI: 10.1016/j.pdpdt.2022.103055] [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: 07/08/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Mitochondrial dysfunctions are related to cancer development.. 5-aminolevulinic acid (ALA) is used for photodynamic therapy (PDT). In this PDT, protoporphyrin IX (PpIX), which is converted from ALA, can generate reactive oxygen species (ROS) that kill the cancer cell. ALA is also reported to promote cytochrome c oxidase (COX) activity, which can generate ROS itself. Therefore, this study focused on the effect of ALA during PDT. In addition, in the previous study, sodium ferrous citrate (SFC) is reported to increase COX activity. So, this study also aims to improve the COX activity by the addition of SFC that can promote ROS generation, which has a cytotoxic effect. METHODS In this study, we used ALA and SFC, then evaluated the effects of the treatment on the human gastric cancer cell line MKN45, including the induction of cell death. RESULTS This study showed that treatment with ALA and SFC increases intracellular heme and heme proteins. Moreover, COX activity was promoted, resulting in the production of intracellular reactive oxygen species (ROS), which eventually reduced the cell viability in human gastric cancer cell line MKN45. CONCLUSION Our study can detect ROS generation with ALA and SFC. Furthermore, we found this generation of ROS has a cytotoxic effect. Therefore, this phenomenon contributes to the effect of PDT.
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Affiliation(s)
- Arif Suprihadi
- Tokyo Institute of Technology, School of Life Science and Technology, 4259 Midori-ku, Yokohama, Kanagawa 226-8501, Japan.
| | - Anantya Pustimbara
- Tokyo Institute of Technology, School of Life Science and Technology, 4259 Midori-ku, Yokohama, Kanagawa 226-8501, Japan.
| | - Shun-Ichiro Ogura
- Tokyo Institute of Technology, School of Life Science and Technology, 4259 Midori-ku, Yokohama, Kanagawa 226-8501, Japan.
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7
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Ambikan AT, Svensson-Akusjärvi S, Krishnan S, Sperk M, Nowak P, Vesterbacka J, Sönnerborg A, Benfeitas R, Neogi U. Genome-scale metabolic models for natural and long-term drug-induced viral control in HIV infection. Life Sci Alliance 2022; 5:5/9/e202201405. [PMID: 35537851 PMCID: PMC9095731 DOI: 10.26508/lsa.202201405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/02/2022] [Accepted: 05/02/2022] [Indexed: 12/21/2022] Open
Abstract
A system-level up-regulation of OXPHOS and glycolysis could play a role in latent reservoir dynamics and immunosenescence in HIV-1–infected individuals with long-term successful therapy. Genome-scale metabolic models (GSMMs) can provide novel insights into metabolic reprogramming during disease progression and therapeutic interventions. We developed a context-specific system-level GSMM of people living with HIV (PLWH) using global RNA sequencing data from PBMCs with suppressive viremia either by natural (elite controllers, PLWHEC) or drug-induced (PLWHART) control. This GSMM was compared with HIV-negative controls (HC) to provide a comprehensive systems-level metabo-transcriptomic characterization. Transcriptomic analysis identified up-regulation of oxidative phosphorylation as a characteristic of PLWHART, differentiating them from PLWHEC with dysregulated complexes I, III, and IV. The flux balance analysis identified altered flux in several intermediates of glycolysis including pyruvate, α-ketoglutarate, and glutamate, among others, in PLWHART. The in vitro pharmacological inhibition of OXPHOS complexes in a latent lymphocytic cell model (J-Lat 10.6) suggested a role for complex IV in latency reversal and immunosenescence. Furthermore, inhibition of complexes I/III/IV induced apoptosis, collectively indicating their contribution to reservoir dynamics.
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Affiliation(s)
- Anoop T Ambikan
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Sara Svensson-Akusjärvi
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Shuba Krishnan
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Maike Sperk
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Piotr Nowak
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden.,Department of Medicine, Huddinge (MedH), Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Jan Vesterbacka
- Department of Medicine, Huddinge (MedH), Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Anders Sönnerborg
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden.,Department of Medicine, Huddinge (MedH), Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden
| | - Rui Benfeitas
- National Bioinformatics Infrastructure Sweden (NBIS), Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
| | - Ujjwal Neogi
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Campus Flemingsberg, Stockholm, Sweden .,Manipal Institute of Virology (MIV), Manipal Academy of Higher Education, Manipal, Karnataka, India
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8
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Tsitsipatis D, Martindale JL, Ubaida‐Mohien C, Lyashkov A, Yanai H, Kashyap A, Shin CH, Herman AB, Ji E, Yang J, Munk R, Dunn C, Lukyanenko Y, Yang X, Chia CW, Karikkineth AC, Zukley L, D’Agostino J, Kaileh M, Cui C, Beerman I, Ferrucci L, Gorospe M. Proteomes of primary skin fibroblasts from healthy individuals reveal altered cell responses across the life span. Aging Cell 2022; 21:e13609. [PMID: 35429111 PMCID: PMC9124301 DOI: 10.1111/acel.13609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/24/2022] [Indexed: 02/04/2023] Open
Abstract
Changes in the proteome of different human tissues with advancing age are poorly characterized. Here, we studied the proteins present in primary skin fibroblasts collected from 82 healthy individuals across a wide age spectrum (22-89 years old) who participated in the GESTALT (Genetic and Epigenetic Signatures of Translational Aging Laboratory Testing) study of the National Institute on Aging, NIH. Proteins were extracted from lysed fibroblasts and subjected to liquid chromatography-mass spectrometry analysis, and the expression levels of 9341 proteins were analyzed using linear regression models. We identified key pathways associated with skin fibroblast aging, including autophagy, scavenging of reactive oxygen species (ROS), ribosome biogenesis, DNA replication, and DNA repair. Changes in these prominent pathways were corroborated using molecular and cell culture approaches. Our study establishes a framework of the global proteome governing skin fibroblast aging and points to possible biomarkers and therapeutic targets.
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Affiliation(s)
- Dimitrios Tsitsipatis
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Jennifer L. Martindale
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Ceereena Ubaida‐Mohien
- Translational Gerontology BranchNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Alexey Lyashkov
- Translational Gerontology BranchNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Hagai Yanai
- Translational Gerontology BranchNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Amogh Kashyap
- Translational Gerontology BranchNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Chang Hoon Shin
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Allison B. Herman
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Eunbyul Ji
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Jen‐Hao Yang
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Rachel Munk
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Christopher Dunn
- Laboratory of Molecular Biology and ImmunologyNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Yevgeniya Lukyanenko
- Translational Gerontology BranchNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Xiaoling Yang
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Chee W. Chia
- Clinical Research CoreNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Ajoy C. Karikkineth
- Clinical Research CoreNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Linda Zukley
- Clinical Research CoreNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Jarod D’Agostino
- Clinical Research CoreNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Mary Kaileh
- Laboratory of Molecular Biology and ImmunologyNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Chang‐Yi Cui
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Isabel Beerman
- Translational Gerontology BranchNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Luigi Ferrucci
- Translational Gerontology BranchNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
| | - Myriam Gorospe
- Laboratory of Genetics and GenomicsNational Institute on AgingNational Institutes of Health Intramural Research ProgramBaltimoreMarylandUSA
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9
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Lee YH, Choi D, Jang G, Park JY, Song ES, Lee H, Kuk MU, Joo J, Ahn SK, Byun Y, Park JT. Targeting regulation of ATP synthase 5 alpha/beta dimerization alleviates senescence. Aging (Albany NY) 2022; 14:678-707. [PMID: 35093936 PMCID: PMC8833107 DOI: 10.18632/aging.203858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 01/14/2022] [Indexed: 11/25/2022]
Abstract
Senescence is a distinct set of changes in the senescence-associated secretory phenotype (SASP) and leads to aging and age-related diseases. Here, we screened compounds that could ameliorate senescence and identified an oxazoloquinoline analog (KB1541) designed to inhibit IL-33 signaling pathway. To elucidate the mechanism of action of KB1541, the proteins binding to KB1541 were investigated, and an interaction between KB1541 and 14-3-3ζ protein was found. Specifically, KB1541 interacted with 14-3-3ζ protein and phosphorylated of 14-3-3ζ protein at serine 58 residue. This phosphorylation increased ATP synthase 5 alpha/beta dimerization, which in turn promoted ATP production through increased oxidative phosphorylation (OXPHOS) efficiency. Then, the increased OXPHOS efficiency induced the recovery of mitochondrial function, coupled with senescence alleviation. Taken together, our results demonstrate a mechanism by which senescence is regulated by ATP synthase 5 alpha/beta dimerization upon fine-tuning of KB1541-mediated 14-3-3ζ protein activity.
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Affiliation(s)
- Yun Haeng Lee
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea
| | - Doyoung Choi
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Geonhee Jang
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Ji Yun Park
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea
| | - Eun Seon Song
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea
| | - Haneur Lee
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea
| | - Myeong Uk Kuk
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea
| | - Junghyun Joo
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea
| | - Soon Kil Ahn
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea
| | - Youngjoo Byun
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Joon Tae Park
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea
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10
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Wall CTJ, Lefebvre G, Metairon S, Descombes P, Wiederkehr A, Santo-Domingo J. Mitochondrial respiratory chain dysfunction alters ER sterol sensing and mevalonate pathway activity. J Biol Chem 2022; 298:101652. [PMID: 35101444 PMCID: PMC8892029 DOI: 10.1016/j.jbc.2022.101652] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 01/13/2022] [Accepted: 01/25/2022] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial dysfunction induces a strong adaptive retrograde signaling response; however, many of the downstream effectors of this response remain to be discovered. Here, we studied the shared transcriptional responses to three different mitochondrial respiratory chain inhibitors in human primary skin fibroblasts using QuantSeq 3′-RNA-sequencing. We found that genes involved in the mevalonate pathway were concurrently downregulated, irrespective of the respiratory chain complex affected. Targeted metabolomics demonstrated that impaired mitochondrial respiration at any of the three affected complexes also had functional consequences on the mevalonate pathway, reducing levels of cholesterol precursor metabolites. A deeper study of complex I inhibition showed a reduced activity of endoplasmic reticulum–bound sterol-sensing enzymes through impaired processing of the transcription factor Sterol Regulatory Element-Binding Protein 2 and accelerated degradation of the endoplasmic reticulum cholesterol-sensors squalene epoxidase and HMG-CoA reductase. These adaptations of mevalonate pathway activity affected neither total intracellular cholesterol levels nor the cellular free (nonesterified) cholesterol pool. Finally, measurement of intracellular cholesterol using the fluorescent cholesterol binding dye filipin revealed that complex I inhibition elevated cholesterol on intracellular compartments. Taken together, our study shows that mitochondrial respiratory chain dysfunction elevates intracellular free cholesterol levels and therefore attenuates the expression of mevalonate pathway enzymes, which lowers endogenous cholesterol biosynthesis, disrupting the metabolic output of the mevalonate pathway. We conclude that intracellular disturbances in cholesterol homeostasis may alter systemic cholesterol management in diseases associated with declining mitochondrial function.
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Affiliation(s)
- Christopher Tadhg James Wall
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland; Institute of Bioengineering, Life Science Faculty, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Gregory Lefebvre
- Nestlé Institute of Food Safety and Analytical Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Sylviane Metairon
- Nestlé Institute of Food Safety and Analytical Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Patrick Descombes
- Nestlé Institute of Food Safety and Analytical Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Andreas Wiederkehr
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland; Institute of Bioengineering, Life Science Faculty, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
| | - Jaime Santo-Domingo
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland; Department of Biochemistry and Molecular Biology, Faculty of Medicine, Unidad de Excelencia Instituto de Biología y Genética Molecular (IBGM), University of Valladolid and CSIC, Valladolid, Spain.
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11
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Wissler Gerdes EO, Misra A, Netto JME, Tchkonia T, Kirkland JL. Strategies for late phase preclinical and early clinical trials of senolytics. Mech Ageing Dev 2021; 200:111591. [PMID: 34699859 PMCID: PMC8627448 DOI: 10.1016/j.mad.2021.111591] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/11/2021] [Accepted: 10/21/2021] [Indexed: 01/17/2023]
Abstract
Cellular senescence and the hallmarks of aging contribute to age-related disease and dysfunction. The Unitary Theory of Fundamental Aging Mechanisms highlights the interdependence among the hallmarks of aging and suggests that by intervening in one fundamental aging process, most or all of the other processes could be impacted. Accumulation of senescent cells is associated with frailty, cardiovascular disease, obesity, diabetes, cognitive decline, and other age- and/or chronic disease-related disorders, suggesting that senescent cells are a target for intervention. Early preclinical data using senolytics, agents that target senescent cells, show promising results in several aging and disease models. The first in-human trials using the senolytic combination of Dasatinib and Quercetin indicated reduced senescent cell burden in adipose tissue of diabetic kidney disease patients and improved physical function in patients with idiopathic pulmonary fibrosis. Clinical trials with other senolytics, including the flavonoid Fisetin and BCL-xL inhibitors, are underway. These results from preclinical and early clinical trials illustrate the potential of senolytics to alleviate age-related dysfunction and diseases. However, multiple clinical trials across different aging and disease models are desperately needed. Parallel trials across institutions through the Translational Geroscience Network are facilitating testing to determine whether senolytics can be translated into clinical application.
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Affiliation(s)
| | - Avanish Misra
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, United States
| | | | - Tamar Tchkonia
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, United States; Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States
| | - James L Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, United States; Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States; Division of Geriatrics and Gerontology, Department of Medicine, Mayo Clinic, Rochester, MN, United States.
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12
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Lee YH, Park JY, Lee H, Song ES, Kuk MU, Joo J, Oh S, Kwon HW, Park JT, Park SC. Targeting Mitochondrial Metabolism as a Strategy to Treat Senescence. Cells 2021; 10:cells10113003. [PMID: 34831224 PMCID: PMC8616445 DOI: 10.3390/cells10113003] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/02/2021] [Accepted: 11/02/2021] [Indexed: 12/13/2022] Open
Abstract
Mitochondria are one of organelles that undergo significant changes associated with senescence. An increase in mitochondrial size is observed in senescent cells, and this increase is ascribed to the accumulation of dysfunctional mitochondria that generate excessive reactive oxygen species (ROS). Such dysfunctional mitochondria are prime targets for ROS-induced damage, which leads to the deterioration of oxidative phosphorylation and increased dependence on glycolysis as an energy source. Based on findings indicating that senescent cells exhibit mitochondrial metabolic alterations, a strategy to induce mitochondrial metabolic reprogramming has been proposed to treat aging and age-related diseases. In this review, we discuss senescence-related mitochondrial changes and consequent mitochondrial metabolic alterations. We assess the significance of mitochondrial metabolic reprogramming for senescence regulation and propose the appropriate control of mitochondrial metabolism to ameliorate senescence. Learning how to regulate mitochondrial metabolism will provide knowledge for the control of aging and age-related pathologies. Further research focusing on mitochondrial metabolic reprogramming will be an important guide for the development of anti-aging therapies, and will provide novel strategies for anti-aging interventions.
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Affiliation(s)
- Yun Haeng Lee
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Ji Yun Park
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Haneur Lee
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Eun Seon Song
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Myeong Uk Kuk
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Junghyun Joo
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Sekyung Oh
- Department of Medical Sciences, Catholic Kwandong University College of Medicine, Incheon 22711, Korea;
| | - Hyung Wook Kwon
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
- Correspondence: (H.W.K.); (J.T.P.); ; (S.C.P.); Tel.: +82-32-835-8090 (H.W.K.); +82-32-835-8841 (J.T.P.); +82-10-5495-9200 (S.C.P.)
| | - Joon Tae Park
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
- Correspondence: (H.W.K.); (J.T.P.); ; (S.C.P.); Tel.: +82-32-835-8090 (H.W.K.); +82-32-835-8841 (J.T.P.); +82-10-5495-9200 (S.C.P.)
| | - Sang Chul Park
- The Future Life & Society Research Center, Chonnam National University, Gwangju 61186, Korea
- Correspondence: (H.W.K.); (J.T.P.); ; (S.C.P.); Tel.: +82-32-835-8090 (H.W.K.); +82-32-835-8841 (J.T.P.); +82-10-5495-9200 (S.C.P.)
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13
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Kim YY, Um JH, Shin DJ, Jeong DJ, Hong YB, Yun J. p53-mediated regulation of mitochondrial dynamics plays a pivotal role in the senescence of various normal cells as well as cancer cells. FASEB J 2021; 35:e21319. [PMID: 33433933 DOI: 10.1096/fj.202002007r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/18/2020] [Accepted: 12/14/2020] [Indexed: 01/16/2023]
Abstract
The tumor suppressor p53 is known as a critical mediator of many cellular processes, including cellular senescence, but its role in mitochondrial dynamics is not fully understood. We have previously shown that p53 regulates mitochondrial dynamics via the PKA-Drp1 pathway to induce cellular senescence. In this study, to further understand the role of p53-dependent regulation of mitochondrial dynamics, the effect of p53 expression on mitochondrial morphology was examined in various cancer cell lines and normal human cells. We found that p53 induced remarkable mitochondrial elongation and cellular senescence in various cancer cells regardless of their p53 status. p53 also induced mitochondrial elongation in various human primary normal cells, suggesting that p53-mediated mitochondrial elongation is a general phenomenon. Moreover, we found that p53 plays an essential role in mitochondrial elongation in H-Ras-induced cellular senescence and in the replicative senescence of normal human cells. Treatment with the MDM-2 antagonist Nutlin-3a also induced mitochondrial elongation through the PKA-Drp1 pathway in IMR90 normal human cells. Furthermore, the inhibition of PKA activity in late-passage normal cells significantly reduced both mitochondrial elongation and cellular senescence, suggesting that the p53-PKA pathway is essential for maintaining the senescence phenotype in normal cells. Together, these results further confirm the direct regulation of mitochondrial dynamics by p53 and the important role of p53-mediated mitochondrial elongation in cellular senescence.
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Affiliation(s)
- Young Yeon Kim
- Peripheral Neuropathy Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jee-Hyun Um
- Peripheral Neuropathy Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Dong Jin Shin
- Peripheral Neuropathy Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Dae Jin Jeong
- Peripheral Neuropathy Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Young Bin Hong
- Peripheral Neuropathy Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Jeanho Yun
- Peripheral Neuropathy Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea.,Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
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14
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Control of Mesenchymal Stromal Cell Senescence by Tryptophan Metabolites. Int J Mol Sci 2021; 22:ijms22020697. [PMID: 33445766 PMCID: PMC7828284 DOI: 10.3390/ijms22020697] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/03/2021] [Accepted: 01/05/2021] [Indexed: 12/12/2022] Open
Abstract
Cellular senescence contributes to aging and age-related disorders. High glucose (HG) induces mesenchymal stromal/stem cell (MSC) senescence, which hampers cell expansion and impairs MSC function. Intracellular HG triggers metabolic shift from aerobic glycolysis to oxidative phosphorylation, resulting in reactive oxygen species (ROS) overproduction. It causes mitochondrial dysfunction and morphological changes. Tryptophan metabolites such as 5-methoxytryptophan (5-MTP) and melatonin attenuate HG-induced MSC senescence by protecting mitochondrial integrity and function and reducing ROS generation. They upregulate the expression of antioxidant enzymes. Both metabolites inhibit stress-induced MSC senescence by blocking p38 MAPK signaling pathway, NF-κB, and p300 histone acetyltransferase activity. Furthermore, melatonin upregulates SIRT-1, which reduces NF-κB activity by de-acetylation of NF-κB subunits. Melatonin and 5-MTP are a new class of metabolites protecting MSCs against replicative and stress-induced cellular senescence. They provide new strategies to improve the efficiency of MSC-based therapy for diverse human diseases.
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15
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Cavinato M, Madreiter-Sokolowski CT, Büttner S, Schosserer M, Zwerschke W, Wedel S, Grillari J, Graier WF, Jansen-Dürr P. Targeting cellular senescence based on interorganelle communication, multilevel proteostasis, and metabolic control. FEBS J 2020; 288:3834-3854. [PMID: 33200494 PMCID: PMC7611050 DOI: 10.1111/febs.15631] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/02/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023]
Abstract
Cellular senescence, a stable cell division arrest caused by severe damage and stress, is a hallmark of aging in vertebrates including humans. With progressing age, senescent cells accumulate in a variety of mammalian tissues, where they contribute to tissue aging, identifying cellular senescence as a major target to delay or prevent aging. There is an increasing demand for the discovery of new classes of small molecules that would either avoid or postpone cellular senescence by selectively eliminating senescent cells from the body (i.e., ‘senolytics’) or inactivating/switching damage‐inducing properties of senescent cells (i.e., ‘senostatics/senomorphics’), such as the senescence‐associated secretory phenotype. Whereas compounds with senolytic or senostatic activity have already been described, their efficacy and specificity has not been fully established for clinical use yet. Here, we review mechanisms of senescence that are related to mitochondria and their interorganelle communication, and the involvement of proteostasis networks and metabolic control in the senescent phenotype. These cellular functions are associated with cellular senescence in in vitro and in vivo models but have not been fully exploited for the search of new compounds to counteract senescence yet. Therefore, we explore possibilities to target these mechanisms as new opportunities to selectively eliminate and/or disable senescent cells with the aim of tissue rejuvenation. We assume that this research will provide new compounds from the chemical space which act as mimetics of caloric restriction, modulators of calcium signaling and mitochondrial physiology, or as proteostasis optimizers, bearing the potential to counteract cellular senescence, thereby allowing healthy aging.
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Affiliation(s)
- Maria Cavinato
- Institute for Biomedical Aging Research, Leopold-Franzens Universität Innsbruck, Austria.,Center for Molecular Biosciences Innsbruck (CMBI), Leopold-Franzens Universität Innsbruck, Austria
| | - Corina T Madreiter-Sokolowski
- Department of Health Sciences and Technology, Institute of Translational Medicine, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland.,Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Austria
| | - Sabrina Büttner
- Institute of Molecular Biosciences, University of Graz, Austria.,Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Sweden
| | - Markus Schosserer
- Christian Doppler Laboratory for Skin Multimodal Analytical Imaging of Aging and Senescence, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Medical University of Vienna, Austria
| | - Werner Zwerschke
- Institute for Biomedical Aging Research, Leopold-Franzens Universität Innsbruck, Austria.,Center for Molecular Biosciences Innsbruck (CMBI), Leopold-Franzens Universität Innsbruck, Austria
| | - Sophia Wedel
- Institute for Biomedical Aging Research, Leopold-Franzens Universität Innsbruck, Austria.,Center for Molecular Biosciences Innsbruck (CMBI), Leopold-Franzens Universität Innsbruck, Austria
| | - Johannes Grillari
- Christian Doppler Laboratory for Skin Multimodal Analytical Imaging of Aging and Senescence, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Medical University of Vienna, Austria.,Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - Wolfgang F Graier
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Austria.,BioTechMed Graz, Austria
| | - Pidder Jansen-Dürr
- Institute for Biomedical Aging Research, Leopold-Franzens Universität Innsbruck, Austria.,Center for Molecular Biosciences Innsbruck (CMBI), Leopold-Franzens Universität Innsbruck, Austria
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16
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Bartho LA, Fisher JJ, Cuffe JSM, Perkins AV. Mitochondrial transformations in the aging human placenta. Am J Physiol Endocrinol Metab 2020; 319:E981-E994. [PMID: 32954826 DOI: 10.1152/ajpendo.00354.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mitochondria play a key role in homeostasis and are central to one of the leading hypotheses of aging, the free radical theory. Mitochondria function as a reticulated network, constantly adapting to the cellular environment through fusion (joining), biogenesis (formation of new mitochondria), and fission (separation). This adaptive response is particularly important in response to oxidative stress, cellular damage, and aging, when mitochondria are selectively removed through mitophagy, a mitochondrial equivalent of autophagy. During this complex process, mitochondria influence surrounding cell biology and organelles through the release of signaling molecules. Given that the human placenta is a unique organ having a transient and somewhat defined life span of ∼280 days, any adaption or dysfunction associated with mitochondrial physiology as a result of aging will have a dramatic impact on the health and function of both the placenta and the fetus. Additionally, a defective placenta during gestation, resulting in reduced fetal growth, has been shown to influence the development of chronic disease in later life. In this review we focus on the mitochondrial adaptions and transformations that accompany gestational length and share similarities with age-related diseases. In addition, we discuss the role of such changes in regulating placental function throughout gestation, the etiology of gestational complications, and the development of chronic diseases later in life.
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Affiliation(s)
- Lucy A Bartho
- School of Medical Science, Griffith University Gold Coast Campus, Southport, Queensland, Australia
| | - Joshua J Fisher
- Hunter Medical Research Institute and School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
| | - James S M Cuffe
- School of Biomedical Sciences, University of Queensland, St. Lucia, Queensland, Australia
| | - Anthony V Perkins
- School of Medical Science, Griffith University Gold Coast Campus, Southport, Queensland, Australia
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17
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Fan Y, Cheng J, Zeng H, Shao L. Senescent Cell Depletion Through Targeting BCL-Family Proteins and Mitochondria. Front Physiol 2020; 11:593630. [PMID: 33335487 PMCID: PMC7736607 DOI: 10.3389/fphys.2020.593630] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 11/04/2020] [Indexed: 01/10/2023] Open
Abstract
Senescent cells with replicative arrest can be generated during genotoxic, oxidative, and oncogenic stress. Long-term retention of senescent cells in the body, which is attributed to highly expressed BCL-family proteins, chronically damages tissues mainly through a senescence-associated secretory phenotype (SASP). It has been documented that accumulation of senescent cells contributes to chronic diseases and aging-related diseases. Despite the fact that no unique marker is available to identify senescent cells, increased p16INK4a expression has long been used as an in vitro and in vivo marker of senescent cells. We reviewed five existing p16INK4a reporter mouse models to detect, isolate, and deplete senescent cells. Senescent cells express high levels of anti-apoptotic and pro-apoptotic genes compared to normal cells. Thus, disrupting the balance between anti-apoptotic and pro-apoptotic gene expression, such as ABT-263 and ABT-737, can activate the apoptotic signaling pathway and remove senescent cells. Mitochondrial abnormalities in senescent cells were also discussed, for example mitochondrial DNA mutation accumulation, dysfunctional mitophagy, and mitochondrial unfolded protein response (mtUPR). The mitochondrial-targeted tamoxifen, MitoTam, can efficiently remove senescent cells due to its inhibition of respiratory complex I and low expression of adenine nucleotide translocase-2 (ANT2) in senescent cells. Therefore, senescent cells can be removed by various strategies, which delays chronic and aging-related diseases and enhances lifespan and healthy conditions in the body.
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Affiliation(s)
- Ying Fan
- Department of Occupational Health and Toxicology, Medical College of Nanchang University, Nanchang, China.,Department of Histology and Embryology, Medical College of Nanchang University, Nanchang, China.,Department of Histology and Embryology, Medical College of Nanchang University, Nanchang, China
| | - Jiaoqi Cheng
- Department of Occupational Health and Toxicology, Medical College of Nanchang University, Nanchang, China.,Department of Histology and Embryology, Medical College of Nanchang University, Nanchang, China
| | - Huihong Zeng
- Department of Occupational Health and Toxicology, Medical College of Nanchang University, Nanchang, China.,Department of Histology and Embryology, Medical College of Nanchang University, Nanchang, China
| | - Lijian Shao
- Department of Occupational Health and Toxicology, Medical College of Nanchang University, Nanchang, China.,Department of Histology and Embryology, Medical College of Nanchang University, Nanchang, China.,Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, China
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18
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van der Rijt S, Molenaars M, McIntyre RL, Janssens GE, Houtkooper RH. Integrating the Hallmarks of Aging Throughout the Tree of Life: A Focus on Mitochondrial Dysfunction. Front Cell Dev Biol 2020; 8:594416. [PMID: 33324647 PMCID: PMC7726203 DOI: 10.3389/fcell.2020.594416] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/04/2020] [Indexed: 12/14/2022] Open
Abstract
Since the identification and definition of the hallmarks of aging, these aspects of molecular and cellular decline have been most often described as isolated or distinct mechanisms. However, there is significant evidence demonstrating interplay between most of these hallmarks and that they have the capacity to influence and regulate one another. These interactions are demonstrable across the tree of life, yet not all aspects are conserved. Here, we describe an integrative view on the hallmarks of aging by using the hallmark "mitochondrial dysfunction" as a focus point, and illustrate its capacity to both influence and be influenced by the other hallmarks of aging. We discuss the effects of mitochondrial pathways involved in aging, such as oxidative phosphorylation, mitochondrial dynamics, mitochondrial protein synthesis, mitophagy, reactive oxygen species and mitochondrial DNA damage in relation to each of the primary, antagonistic and integrative hallmarks. We discuss the similarities and differences in these interactions throughout the tree of life, and speculate how speciation may play a role in the variation in these mechanisms. We propose that the hallmarks are critically intertwined, and that mapping the full extent of these interactions would be of significant benefit to the aging research community.
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Affiliation(s)
- Sanne van der Rijt
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Marte Molenaars
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Rebecca L McIntyre
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Georges E Janssens
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Riekelt H Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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19
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Bornstein R, Gonzalez B, Johnson SC. Mitochondrial pathways in human health and aging. Mitochondrion 2020; 54:72-84. [PMID: 32738358 PMCID: PMC7508824 DOI: 10.1016/j.mito.2020.07.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/20/2020] [Accepted: 07/27/2020] [Indexed: 12/27/2022]
Abstract
Mitochondria are eukaryotic organelles known best for their roles in energy production and metabolism. While often thought of as simply the 'powerhouse of the cell,' these organelles participate in a variety of critical cellular processes including reactive oxygen species (ROS) production, regulation of programmed cell death, modulation of inter- and intracellular nutrient signaling pathways, and maintenance of cellular proteostasis. Disrupted mitochondrial function is a hallmark of eukaryotic aging, and mitochondrial dysfunction has been reported to play a role in many aging-related diseases. While mitochondria are major players in human diseases, significant questions remain regarding their precise mechanistic role. In this review, we detail mechanisms by which mitochondrial dysfunction participate in disease and aging based on findings from model organisms and human genetics studies.
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Affiliation(s)
| | - Brenda Gonzalez
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Simon C Johnson
- Department of Neurology, University of Washington, Seattle, WA, USA; Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA; Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA.
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20
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Weiss AKH, Albertini E, Holzknecht M, Cappuccio E, Dorigatti I, Krahbichler A, Damisch E, Gstach H, Jansen-Dürr P. Regulation of cellular senescence by eukaryotic members of the FAH superfamily - A role in calcium homeostasis? Mech Ageing Dev 2020; 190:111284. [PMID: 32574647 PMCID: PMC7116474 DOI: 10.1016/j.mad.2020.111284] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/29/2020] [Accepted: 06/04/2020] [Indexed: 01/04/2023]
Abstract
Fumarylacetoacetate hydrolase (FAH) superfamily members are commonly expressed in the prokaryotic kingdom, where they take part in the committing steps of degradation pathways of complex carbon sources. Besides FAH itself, the only described FAH superfamily members in the eukaryotic kingdom are fumarylacetoacetate hydrolase domain containing proteins (FAHD) 1 and 2, that have been a focus of recent work in aging research. Here, we provide a review of current knowledge on FAHD proteins. Of those, FAHD1 has recently been described as a regulator of mitochondrial function and senescence, in the context of mitochondrial dysfunction associated senescence (MiDAS). This work further describes data based on bioinformatics analysis, 3D structure comparison and sequence alignment, that suggests a putative role of FAHD proteins as calcium binding proteins.
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Affiliation(s)
- Alexander K H Weiss
- University of Innsbruck, Research Institute for Biomedical Aging Research, Rennweg 10, A-6020, Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Austria.
| | - Eva Albertini
- University of Innsbruck, Research Institute for Biomedical Aging Research, Rennweg 10, A-6020, Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Austria
| | - Max Holzknecht
- University of Innsbruck, Research Institute for Biomedical Aging Research, Rennweg 10, A-6020, Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Austria
| | - Elia Cappuccio
- University of Innsbruck, Research Institute for Biomedical Aging Research, Rennweg 10, A-6020, Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Austria
| | - Ilaria Dorigatti
- University of Innsbruck, Research Institute for Biomedical Aging Research, Rennweg 10, A-6020, Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Austria
| | - Anna Krahbichler
- University of Innsbruck, Research Institute for Biomedical Aging Research, Rennweg 10, A-6020, Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Austria
| | - Elisabeth Damisch
- University of Innsbruck, Research Institute for Biomedical Aging Research, Rennweg 10, A-6020, Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Austria
| | - Hubert Gstach
- University of Vienna, UZ2 E349, Department of Pharmaceutical Chemistry, Faculty of Life Sciences, Althanstrasse 14, 1090, Vienna, Austria
| | - Pidder Jansen-Dürr
- University of Innsbruck, Research Institute for Biomedical Aging Research, Rennweg 10, A-6020, Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Austria
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21
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Saez-Atienzar S, Masliah E. Cellular senescence and Alzheimer disease: the egg and the chicken scenario. Nat Rev Neurosci 2020; 21:433-444. [PMID: 32601397 DOI: 10.1038/s41583-020-0325-z] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2020] [Indexed: 12/21/2022]
Abstract
Globally, 50 million people live with dementia, with Alzheimer disease (AD) being responsible for two-thirds of the total cases. As ageing is the main risk factor for dementia-related neurodegeneration, changes in the timing or nature of the cellular hallmarks of normal ageing might be key to understanding the events that convert normal ageing into neurodegeneration. Cellular senescence is a candidate mechanism that might be important for this conversion. Under persistent stress, as occurs in ageing, both postmitotic cells - including neurons - and proliferative cells - such as astrocytes and microglia, among others - can engender a state of chronic cellular senescence that is characterized by the secretion of pro-inflammatory molecules that promote the functional decline of tissues and organs. Ablation of senescent cells has been postulated as a promising therapeutic venue to target the ageing phenotype and, thus, prevent or mitigate ageing-related diseases. However, owing to a lack of evidence, it is not possible to label cellular senescence as a cause or a consequence of neurodegeneration. This Review examines cellular senescence in the context of ageing and AD, and discusses which of the processes - cellular senescence or AD - might come first.
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Affiliation(s)
- Sara Saez-Atienzar
- Neuromuscular Disease Research Section, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Eliezer Masliah
- Molecular Neuropathology Section, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA. .,Division of Neuroscience, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA.
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22
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Kim YY, Um JH, Yoon JH, Lee DY, Lee YJ, Kim DH, Park JI, Yun J. p53 regulates mitochondrial dynamics by inhibiting Drp1 translocation into mitochondria during cellular senescence. FASEB J 2019; 34:2451-2464. [PMID: 31908078 DOI: 10.1096/fj.201901747rr] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/21/2019] [Accepted: 12/03/2019] [Indexed: 01/05/2023]
Abstract
Cellular senescence acts as an important barrier to tumorigenesis by eliminating precancerous cells. Previous studies have shown an essential role of the tumor suppressor p53 in cellular senescence, but how p53 induces cellular senescence is not fully understood. We found that p53 promoted the formation of highly interconnected and elongated mitochondria prior to the onset of cellular senescence. The inhibition of mitochondrial elongation upon p53 expression suppressed cellular senescence, suggesting that mitochondrial elongation is required for the induction of p53-dependent senescence. p53-induced mitochondrial elongation resulted in mitochondrial dysfunction and subsequent increases in intracellular reactive oxygen species (ROS) levels, an important mediator of cellular senescence. Mechanistically, the inhibitory phosphorylation of Drp1 Ser637 increased upon p53 expression, suppressing the translocation of Drp1 into mitochondria. The transcriptional function of p53 was crucial for controlling the inhibitory phosphorylation of Drp1, whereas p21 was nonessential. Protein kinase A (PKA) activity was responsible for p53-mediated Drp1 Ser637 phosphorylation and mitochondrial dysfunction. Taken together, these results suggest that p53 regulates mitochondrial dynamics through the PKA-Drp1 pathway to induce cellular senescence.
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Affiliation(s)
- Young Yeon Kim
- Peripheral Neuropathy Research Center, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jee-Hyun Um
- Peripheral Neuropathy Research Center, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jeong-Hyun Yoon
- Peripheral Neuropathy Research Center, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Da-Ye Lee
- Peripheral Neuropathy Research Center, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Yoon Jung Lee
- Peripheral Neuropathy Research Center, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Dong Hyun Kim
- Peripheral Neuropathy Research Center, Dong-A University, Busan, Republic of Korea.,Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Joo-In Park
- Peripheral Neuropathy Research Center, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jeanho Yun
- Peripheral Neuropathy Research Center, Dong-A University, Busan, Republic of Korea.,Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
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23
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Novoa B, Pereiro P, López‐Muñoz A, Varela M, Forn‐Cuní G, Anchelin M, Dios S, Romero A, Martinez‐López A, Medina‐Gali RM, Collado M, Coll J, Estepa A, Cayuela ML, Mulero V, Figueras A. Rag1 immunodeficiency-induced early aging and senescence in zebrafish are dependent on chronic inflammation and oxidative stress. Aging Cell 2019; 18:e13020. [PMID: 31348603 PMCID: PMC6718522 DOI: 10.1111/acel.13020] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 07/14/2019] [Indexed: 12/16/2022] Open
Abstract
In mammals, recombination activating gene 1 (RAG1) plays a crucial role in adaptive immunity, generating a vast range of immunoglobulins. Rag1−/− zebrafish (Danio rerio) are viable and reach adulthood without obvious signs of infectious disease in standard nonsterile conditions, suggesting that innate immunity could be enhanced to compensate for the lack of adaptive immunity. By using microarray analysis, we confirmed that the expression of immunity‐ and apoptosis‐related genes was increased in the rag1−/− fish. This tool also allows us to notice alterations of the DNA repair and cell cycle mechanisms in rag1−/− zebrafish. Several senescence and aging markers were analyzed. In addition to the lower lifespan of rag1−/− zebrafish compared to their wild‐type (wt) siblings, rag1−/− showed a higher incidence of cell cycle arrest and apoptosis, a greater amount of phosphorylated histone H2AX, oxidative stress and decline of the antioxidant mechanisms, an upregulated expression and activity of senescence‐related genes and senescence‐associated β‐galactosidase, respectively, diminished telomere length, and abnormal self‐renewal and repair capacities in the retina and liver. Metabolomic analysis also demonstrated clear differences between wt and rag1−/− fish, as was the deficiency of the antioxidant metabolite l‐acetylcarnitine (ALCAR) in rag1−/− fish. Therefore, Rag1 activity does not seem to be limited to V(D)J recombination but is also involved in senescence and aging. Furthermore, we confirmed the senolytic effect of ABT‐263, a known senolytic compound and, for the first time, the potential in vivo senolytic activity of the antioxidant agent ALCAR, suggesting that this metabolite is essential to avoid premature aging.
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Affiliation(s)
- Beatriz Novoa
- Instituto de Investigaciones Marinas Consejo Superior de Investigaciones Científicas (CSIC) Vigo Spain
| | - Patricia Pereiro
- Instituto de Investigaciones Marinas Consejo Superior de Investigaciones Científicas (CSIC) Vigo Spain
| | - Azucena López‐Muñoz
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia IMIB‐Arrixaca Murcia Spain
| | - Mónica Varela
- Instituto de Investigaciones Marinas Consejo Superior de Investigaciones Científicas (CSIC) Vigo Spain
| | - Gabriel Forn‐Cuní
- Instituto de Investigaciones Marinas Consejo Superior de Investigaciones Científicas (CSIC) Vigo Spain
| | - Monique Anchelin
- Grupo de Telomerasa, Cáncer y Envejecimiento, Hospital Clínico Universitario Virgen de la Arrixaca IMIB‐Arrixaca Murcia Spain
| | - Sonia Dios
- Instituto de Investigaciones Marinas Consejo Superior de Investigaciones Científicas (CSIC) Vigo Spain
| | - Alejandro Romero
- Instituto de Investigaciones Marinas Consejo Superior de Investigaciones Científicas (CSIC) Vigo Spain
| | - Alicia Martinez‐López
- Instituto de Biología Molecular y Celular (IBMC) Universidad Miguel Hernández (UMH) Elche Spain
| | - Regla María Medina‐Gali
- Instituto de Biología Molecular y Celular (IBMC) Universidad Miguel Hernández (UMH) Elche Spain
| | - Manuel Collado
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (CHUS) SERGAS Santiago de Compostela Spain
| | - Julio Coll
- Departamento de Biotecnología Instituto Nacional Investigación y Tecnología Agraria y Alimentaria (INIA) Madrid Spain
| | - Amparo Estepa
- Instituto de Biología Molecular y Celular (IBMC) Universidad Miguel Hernández (UMH) Elche Spain
| | - María Luisa Cayuela
- Grupo de Telomerasa, Cáncer y Envejecimiento, Hospital Clínico Universitario Virgen de la Arrixaca IMIB‐Arrixaca Murcia Spain
| | - Victoriano Mulero
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia IMIB‐Arrixaca Murcia Spain
| | - Antonio Figueras
- Instituto de Investigaciones Marinas Consejo Superior de Investigaciones Científicas (CSIC) Vigo Spain
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24
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Liao GY, Lee MT, Fan JJ, Hsiao PW, Lee CS, Su SY, Hwang JJ, Ke FC. Blockage of glutamine-dependent anaplerosis affects mTORC1/2 activity and ultimately leads to cellular senescence-like response. Biol Open 2019; 8:bio.038257. [PMID: 31097446 PMCID: PMC6550068 DOI: 10.1242/bio.038257] [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] [Indexed: 01/08/2023] Open
Abstract
The purpose of study was to explore the role of glutamine-dependent anaplerosis in cell fate determination (proliferation and senescence) and the potential associated mechanism by employing a pharmacological inhibitor of glutamine-dependent anaplerosis, amino-oxyacetate (AOA). Using the WI38 normal human embryonic fibroblast cell line, we found that exposure to AOA induced mTORC1 inactivation−mTORC2 activation (within day 1), cell cycle arrest (day 2–6) and cellular senescence (day 4–6). These AOA effects were blocked by concomitantly providing anaplerotic factors [α-ketoglutarate (αKG), pyruvate or oxaloacetate], and not affected by ROS scavenger N-acetyl-cysteine (NAC). Moreover, AOA-induced cellular senescence in WI38 cells is associated with elevated protein levels of p53, p21CIP1 and p16INK4A and decreased Rb protein level, which was blocked by αKG supplementation. In p16INK4A-deficient U2OS human osteosarcoma cells and p16INK4A-knockdown WI38 cells, AOA exposure also induced similar effects on cell proliferation, and protein level of P-Rb-S807/811 and Rb. Interestingly, no AOA induction of cellular senescence was observed in U2OS cells, yet was still seen in p16INK4A-knockdown WI38 cells accompanied by the presence of p16 antibody-reactive p12. In summary, we disclose that glutamine-dependent anaplerosis is essential to cell growth and closely associated with mTORC1 activation and mTORC2 inactivation, and impedes cellular senescence particularly associated with p16INK4A. Summary: Glutamine-dependent anaplerosis is essential to cell growth and closely associated with mTORC1 activation and mTORC2 inactivation, and impedes cellular senescence particularly associated with p16INK4A.
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Affiliation(s)
- Geng-You Liao
- Institute of Molecular and Cellular Biology, College of Life Science, National Taiwan University, Taipei 106, Taiwan.,Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan
| | - Ming-Ting Lee
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Jhen-Jia Fan
- Institute of Molecular and Cellular Biology, College of Life Science, National Taiwan University, Taipei 106, Taiwan
| | - Pei-Wen Hsiao
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Chun-Sheng Lee
- Institute of Molecular and Cellular Biology, College of Life Science, National Taiwan University, Taipei 106, Taiwan
| | - Shou-Yi Su
- Institute of Molecular and Cellular Biology, College of Life Science, National Taiwan University, Taipei 106, Taiwan
| | - Jiuan-Jiuan Hwang
- Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan
| | - Ferng-Chun Ke
- Institute of Molecular and Cellular Biology, College of Life Science, National Taiwan University, Taipei 106, Taiwan
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25
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Habiballa L, Salmonowicz H, Passos JF. Mitochondria and cellular senescence: Implications for musculoskeletal ageing. Free Radic Biol Med 2019; 132:3-10. [PMID: 30336251 DOI: 10.1016/j.freeradbiomed.2018.10.417] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/25/2018] [Accepted: 10/09/2018] [Indexed: 01/07/2023]
Abstract
Musculoskeletal ageing and its associated diseases are major contributors to the loss of independence and reduced quality of life in older people. Several recent studies indicate that cellular senescence is a contributor to age-related loss of function in various organs including muscle, bones and joints. Importantly, these studies indicate that therapies targeting specifically senescent cells have great therapeutic potential in improving musculoskeletal health during ageing. Senescent cells are characterised by dramatic changes in mitochondrial function, metabolism and homeostasis. Mitochondrial dysfunction has been shown to contribute to senescence and the SASP. Here we review the role of cellular senescence in musculoskeletal ageing as well as the potential mechanisms by which mitochondrial dysfunction may impact on the induction and development of the senescent phenotype.
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Affiliation(s)
- Leena Habiballa
- Institute for Cell and Molecular Biosciences & Newcastle University Institute for Ageing, Newcastle upon Tyne NE4 5PL, UK
| | - Hanna Salmonowicz
- Institute for Cell and Molecular Biosciences & Newcastle University Institute for Ageing, Newcastle upon Tyne NE4 5PL, UK
| | - João F Passos
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA.
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26
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Laporte D, Gouleme L, Jimenez L, Khemiri I, Sagot I. Mitochondria reorganization upon proliferation arrest predicts individual yeast cell fate. eLife 2018; 7:35685. [PMID: 30299253 PMCID: PMC6177259 DOI: 10.7554/elife.35685] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 09/14/2018] [Indexed: 02/06/2023] Open
Abstract
Most cells spend the majority of their life in a non-proliferating state. When proliferation cessation is irreversible, cells are senescent. By contrast, if the arrest is only temporary, cells are defined as quiescent. These cellular states are hardly distinguishable without triggering proliferation resumption, hampering thus the study of quiescent cells properties. Here we show that quiescent and senescent yeast cells are recognizable based on their mitochondrial network morphology. Indeed, while quiescent yeast cells display numerous small vesicular mitochondria, senescent cells exhibit few globular mitochondria. This allowed us to reconsider at the individual-cell level, properties previously attributed to quiescent cells using population-based approaches. We demonstrate that cell’s propensity to enter quiescence is not influenced by replicative age, volume or density. Overall, our findings reveal that quiescent cells are not all identical but that their ability to survive is significantly improved when they exhibit the specific reorganization of several cellular machineries.
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Affiliation(s)
- Damien Laporte
- Centre National de la Recherche Scientifique, Université de Bordeaux - Institut de Biochimie et Génétique Cellulaires, Bordeaux, France
| | - Laëtitia Gouleme
- Centre National de la Recherche Scientifique, Université de Bordeaux - Institut de Biochimie et Génétique Cellulaires, Bordeaux, France
| | - Laure Jimenez
- Centre National de la Recherche Scientifique, Université de Bordeaux - Institut de Biochimie et Génétique Cellulaires, Bordeaux, France
| | - Ines Khemiri
- Centre National de la Recherche Scientifique, Université de Bordeaux - Institut de Biochimie et Génétique Cellulaires, Bordeaux, France
| | - Isabelle Sagot
- Centre National de la Recherche Scientifique, Université de Bordeaux - Institut de Biochimie et Génétique Cellulaires, Bordeaux, France
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27
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Etemad S, Petit M, Weiss AKH, Schrattenholz A, Baraldo G, Jansen-Dürr P. Oxaloacetate decarboxylase FAHD1 - a new regulator of mitochondrial function and senescence. Mech Ageing Dev 2018; 177:22-29. [PMID: 30055189 DOI: 10.1016/j.mad.2018.07.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 07/02/2018] [Accepted: 07/25/2018] [Indexed: 12/16/2022]
Abstract
FAHD1, a member of the FAH superfamily of enzymes, was identified in a proteomic screen for mitochondrial proteins with differential expression in young versus senescent human endothelial cells. FAHD1 acts as oxaloacetate decarboxylase, and recent observations suggest that FAHD1 plays an important role in regulating mitochondrial function. Thus, mutation of the nematode homolog, fahd-1, impairs mitochondrial function in Caenorhabditis elegans. When FAHD1 gene expression was silenced in human cells, activity of the mitochondrial electron transport (ETC) system was reduced and the cells entered premature senescence-like growth arrest. These findings suggest a model where FAHD1 regulates mitochondrial function and in consequence senescence. These findings are discussed here in the context of a new concept where senescence is divided into deep senescence and less severe forms of senescence. We propose that genetic inactivation of FAHD1 in human cells induces a specific form of cellular senescence, which we term senescence light and discuss it in the context of mitochondrial dysfunction associated senescence (MiDAS) described by others. Together these findings suggest the existence of a continuum of cellular senescence phenotypes, which may be at least in part reversible.
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Affiliation(s)
- Solmaz Etemad
- University of Innsbruck, Research Institute for Biomedical Ageing Research, Rennweg 10, A-6020 Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Innrain 80-82, A-6020 Innsbruck, Austria
| | - Michèle Petit
- University of Innsbruck, Research Institute for Biomedical Ageing Research, Rennweg 10, A-6020 Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Innrain 80-82, A-6020 Innsbruck, Austria
| | - Alexander K H Weiss
- University of Innsbruck, Research Institute for Biomedical Ageing Research, Rennweg 10, A-6020 Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Innrain 80-82, A-6020 Innsbruck, Austria
| | | | - Giorgia Baraldo
- University of Innsbruck, Research Institute for Biomedical Ageing Research, Rennweg 10, A-6020 Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Innrain 80-82, A-6020 Innsbruck, Austria
| | - Pidder Jansen-Dürr
- University of Innsbruck, Research Institute for Biomedical Ageing Research, Rennweg 10, A-6020 Innsbruck, Austria; University of Innsbruck, Center for Molecular Biosciences Innsbruck (CMBI), Innrain 80-82, A-6020 Innsbruck, Austria.
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28
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Baccolo G, Stamerra G, Coppola DP, Orlandi I, Vai M. Mitochondrial Metabolism and Aging in Yeast. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2018; 340:1-33. [PMID: 30072089 DOI: 10.1016/bs.ircmb.2018.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Mitochondrial functionality is one of the main factors involved in cell survival, and mitochondrial dysfunctions have been identified as an aging hallmark. In particular, the insurgence of mitochondrial dysfunctions is tightly connected to mitochondrial metabolism. During aging, both mitochondrial oxidative and biosynthetic metabolisms are progressively altered, with the development of malfunctions, in turn affecting mitochondrial functionality. In this context, the relation between mitochondrial pathways and aging is evolutionarily conserved from single-celled organisms, such as yeasts, to complex multicellular organisms, such as humans. Useful information has been provided by the yeast Saccharomyces cerevisiae, which is being increasingly acknowledged as a valuable model system to uncover mechanisms underlying cellular longevity in humans. On this basis, we review the impact of specific aspects of mitochondrial metabolism on aging supported by the contributions brought by numerous studies performed employing yeast. Initially, we will focus on the tricarboxylic acid cycle and oxidative phosphorylation, describing how their modulation has consequences on cellular longevity. Afterward, we will report information regarding the importance of nicotinamide adenine dinucleotide (NAD) metabolism during aging, highlighting its relation with mitochondrial functionality. The comprehension of these key points regarding mitochondrial metabolism and their physiological importance is an essential first step for the development of therapeutic interventions that point to increase life quality during aging, therefore promoting "healthy aging," as well as lifespan itself.
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Affiliation(s)
- Giacomo Baccolo
- SYSBIO Centre for Systems Biology, Milano, Italy; Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Milano, Italy
| | - Giulia Stamerra
- SYSBIO Centre for Systems Biology, Milano, Italy; Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Milano, Italy
| | | | - Ivan Orlandi
- SYSBIO Centre for Systems Biology, Milano, Italy; Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Milano, Italy
| | - Marina Vai
- SYSBIO Centre for Systems Biology, Milano, Italy; Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Milano, Italy
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29
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Revoltella S, Baraldo G, Waltenberger B, Schwaiger S, Kofler P, Moesslacher J, Huber-Seidel A, Pagitz K, Kohl R, Jansen-Duerr P, Stuppner H. Identification of the NADPH Oxidase 4 Inhibiting Principle of Lycopus europaeus. Molecules 2018; 23:E653. [PMID: 29538284 PMCID: PMC6017630 DOI: 10.3390/molecules23030653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/05/2018] [Accepted: 03/09/2018] [Indexed: 11/16/2022] Open
Abstract
NADPH oxidase 4 (Nox4) has recently been implicated as driving force in cellular senescence. Thus, there is growing interest to develop Nox4 inhibitors, which might be valuable agents for cosmeceutical applications. Alpine plants represent a valuable source for the identification of novel bioactive natural products with anti-ageing effects, especially substances that protect plants against UV radiation, which is also known to contribute to the ageing of human skin. Therefore, the aim of this study was to identify novel Nox4 inhibitors from alpine plants. Within an initial screening of extracts of alpine plants on their ability to inhibit Nox4 activity in HEK cells, the methanolic extract of the subaerial parts of Lycopus europaeus showed a strong inhibition of Nox4 (81% chemiluminescence quenching) and a simultaneously high cell viability (91% vitality). Rosmarinic acid was isolated and identified as the major compound in this bioactive extract. It showed a dose dependent inhibitory activity on Nox4 with an IC50 of 1 µM. Moreover, it also showed a significant inhibitory activity on Nox2 in the low micromolar range, whereas no inhibition of Nox5 was detected. Further investigations confirmed that the observed effects of rosmarinic acid on Nox2 and Nox4 are real inhibitory activities, and not due to ROS scavenging effects. Therefore, L. europaeus, which we demonstrated to be a good source of rosmarinic acid, has great potential for usage in cosmeceutical products with anti-ageing activity.
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Affiliation(s)
- Silvia Revoltella
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria.
| | - Giorgia Baraldo
- Institute for Biomedical Aging Research and CMBI, University of Innsbruck, 6020 Innsbruck, Austria.
| | - Birgit Waltenberger
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria.
| | - Stefan Schwaiger
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria.
| | - Philipp Kofler
- Institute for Biomedical Aging Research and CMBI, University of Innsbruck, 6020 Innsbruck, Austria.
| | | | | | - Konrad Pagitz
- Institute of Botany, University of Innsbruck, 6020 Innsbruck, Austria.
| | - Roland Kohl
- Cura Marketing GmbH, 6020 Innsbruck, Austria.
| | - Pidder Jansen-Duerr
- Institute for Biomedical Aging Research and CMBI, University of Innsbruck, 6020 Innsbruck, Austria.
| | - Hermann Stuppner
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria.
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30
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Dabbaghizadeh A, Morrow G, Amer YO, Chatelain EH, Pichaud N, Tanguay RM. Identification of proteins interacting with the mitochondrial small heat shock protein Hsp22 of Drosophila melanogaster: Implication in mitochondrial homeostasis. PLoS One 2018; 13:e0193771. [PMID: 29509794 PMCID: PMC5839585 DOI: 10.1371/journal.pone.0193771] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 02/16/2018] [Indexed: 12/17/2022] Open
Abstract
The small heat shock protein (sHsp) Hsp22 from Drosophila melanogaster (DmHsp22) is part of the family of sHsps in this diptera. This sHsp is characterized by its presence in the mitochondrial matrix as well as by its preferential expression during ageing. Although DmHsp22 has been demonstrated to be an efficient in vitro chaperone, its function within mitochondria in vivo remains largely unknown. Thus, determining its protein-interaction network (interactome) in the mitochondrial matrix would help to shed light on its function(s). In the present study we combined immunoaffinity conjugation (IAC) with mass spectroscopy analysis of mitochondria from HeLa cells transfected with DmHsp22 in non-heat shock condition and after heat shock (HS). 60 common DmHsp22-binding mitochondrial partners were detected in two independent IACs. Immunoblotting was used to validate interaction between DmHsp22 and two members of the mitochondrial chaperone machinery; Hsp60 and Hsp70. Among the partners of DmHsp22, several ATP synthase subunits were found. Moreover, we showed that expression of DmHsp22 in transiently transfected HeLa cells increased maximal mitochondrial oxygen consumption capacity and ATP contents, providing a mechanistic link between DmHsp22 and mitochondrial functions.
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Affiliation(s)
- Afrooz Dabbaghizadeh
- Laboratoire de Génétique Cellulaire et Développementale, IBIS and PROTEO, Département de Biologie Moléculaire, Biochimie Médicale et Pathologie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Geneviève Morrow
- Laboratoire de Génétique Cellulaire et Développementale, IBIS and PROTEO, Département de Biologie Moléculaire, Biochimie Médicale et Pathologie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Yasmine Ould Amer
- Laboratoire de Signalisation Mitochondriale, Département de Biologie, Université de Moncton, Moncton, NB, Canada
| | - Etienne Hebert Chatelain
- Laboratoire de Signalisation Mitochondriale, Département de Biologie, Université de Moncton, Moncton, NB, Canada
| | - Nicolas Pichaud
- Laboratoire de Biochimie et Physiologie Comparée, Département de Chimie et Biochimie, Université de Moncton, Moncton, NB, Canada
| | - Robert M Tanguay
- Laboratoire de Génétique Cellulaire et Développementale, IBIS and PROTEO, Département de Biologie Moléculaire, Biochimie Médicale et Pathologie, Faculté de Médecine, Université Laval, Québec, Canada
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Nacarelli T, Sell C. Targeting metabolism in cellular senescence, a role for intervention. Mol Cell Endocrinol 2017; 455:83-92. [PMID: 27591812 DOI: 10.1016/j.mce.2016.08.049] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 07/29/2016] [Accepted: 08/30/2016] [Indexed: 01/06/2023]
Abstract
Cellular senescence has gained much attention as a contributor to aging and susceptibility to disease. Senescent cells undergo a stable cell cycle arrest and produce pro-inflammatory cytokines. However, an additional feature of the senescence phenotype is an altered metabolic state. Despite maintaining a non-dividing state, senescent cells display a high metabolic rate. Metabolic changes characteristic of replicative senescence include altered mitochondrial function and perturbations in growth signaling pathways, such as the mTORC1-signaling pathway. Recent evidence has raised the possibility that these metabolic changes may be essential for the induction and maintenance of the senescent state. Interventions such as rapamycin treatment and methionine restriction impact key aspects of metabolism and delay cellular senescence to extend cellular lifespan. Here, we review the metabolic changes and potential metabolic regulators of the senescence program. In addition, we will discuss how lifespan-extending regimens prevent metabolic stress that accompanies and potentially regulates the senescence program.
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Affiliation(s)
- Timothy Nacarelli
- Drexel University College of Medicine, 245 North 15th Street, Philadelphia, PA 19102, USA
| | - Christian Sell
- Drexel University College of Medicine, 245 North 15th Street, Philadelphia, PA 19102, USA.
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32
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Petit M, Koziel R, Etemad S, Pircher H, Jansen-Dürr P. Depletion of oxaloacetate decarboxylase FAHD1 inhibits mitochondrial electron transport and induces cellular senescence in human endothelial cells. Exp Gerontol 2017; 92:7-12. [PMID: 28286170 DOI: 10.1016/j.exger.2017.03.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 02/28/2017] [Accepted: 03/02/2017] [Indexed: 10/20/2022]
Abstract
In this study we report the identification of FAH domain containing protein 1 (FAHD1), a recently described member of the fumarylacetoacetate hydrolase (FAH) superfamily of metabolic enzymes, as a novel player in the regulation of cellular senescence. FAHD1 was found in a proteomic screen searching for mitochondrial proteins, which are differentially regulated in mitochondria from young and senescent human endothelial cells, and subsequently identified as oxaloacetate decarboxylase. We report here that depletion of FAHD1 from human endothelial cells inhibited mitochondrial energy metabolism and subsequently induced premature senescence. Whereas senescence induced by FAHD1 depletion was not associated with DNA damage, we noted a reduction of mitochondrial ATP-coupled respiration associated with upregulation of the cdk inhibitor p21. These results indicate that FAHD1 is required for mitochondrial function in human cells and provide additional support to the growing evidence that mitochondrial dysfunction can induce cellular senescence by metabolic alterations independent of the DNA damage response pathway.
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Affiliation(s)
- Michele Petit
- Institute for Biomedical Aging Research, Universität Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria
| | - Rafal Koziel
- Institute for Biomedical Aging Research, Universität Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria
| | - Solmaz Etemad
- Institute for Biomedical Aging Research, Universität Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria
| | - Haymo Pircher
- Institute for Biomedical Aging Research, Universität Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria
| | - Pidder Jansen-Dürr
- Institute for Biomedical Aging Research, Universität Innsbruck, Rennweg 10, A-6020 Innsbruck, Austria.
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Wang GF, Dong Q, Bai Y, Yuan J, Xu Q, Cao C, Liu X. Oxidative stress induces mitotic arrest by inhibiting Aurora A-involved mitotic spindle formation. Free Radic Biol Med 2017; 103:177-187. [PMID: 28017898 DOI: 10.1016/j.freeradbiomed.2016.12.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/05/2016] [Accepted: 12/21/2016] [Indexed: 01/11/2023]
Abstract
Oxidative stress contributes to the oxidative modification of cellular components, including lipids, proteins and DNA, and results in DNA damage, cell cycle arrest, cellular dysfunction and apoptosis. However, the mechanism underlying oxidative stress-induced mitotic abnormalities is not fully understood. In this study, we demonstrated that exogenous and endogenous reactive oxygen species (ROS) promoted mitotic arrest. Delayed formation and abnormal function of the mitotic spindle, which directly impeded mitosis and promoted abnormal chromosome separation, was responsible for ROS-induced mitotic arrest. As a key regulator of mitotic spindle assembly, Aurora A kinase was hyperphosphorylated in early mitosis under oxidative stress, which may disturb the function of Aurora A in mitotic spindle formation. Our findings identified a mechanism by which ROS regulate mitotic progression and indicated a potential molecular target for the treatment of oxidative stress-related diseases.
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Affiliation(s)
- Guang-Fei Wang
- Key Laboratory of Cell Proliferation and Regulation Biology, College of Life Sciences, Beijing Normal University, 19 Xinjiekouwai Avenue, Beijing 100875, China
| | - Qincai Dong
- Beijing Institute of Biotechnology, 27 Taiping Rd, Haidian District, Beijing 100850, China
| | - Yuanyuan Bai
- Beijing Institute of Biotechnology, 27 Taiping Rd, Haidian District, Beijing 100850, China
| | - Jing Yuan
- Beijing Institute of Disease Control and Prevention, Beijing 100071, China
| | - Quanbin Xu
- Beijing Institute of Biotechnology, 27 Taiping Rd, Haidian District, Beijing 100850, China
| | - Cheng Cao
- Beijing Institute of Biotechnology, 27 Taiping Rd, Haidian District, Beijing 100850, China.
| | - Xuan Liu
- Beijing Institute of Biotechnology, 27 Taiping Rd, Haidian District, Beijing 100850, China.
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34
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Lerner CA, Sundar IK, Rahman I. Mitochondrial redox system, dynamics, and dysfunction in lung inflammaging and COPD. Int J Biochem Cell Biol 2016; 81:294-306. [PMID: 27474491 DOI: 10.1016/j.biocel.2016.07.026] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 07/21/2016] [Accepted: 07/23/2016] [Indexed: 01/01/2023]
Abstract
Myriad forms of endogenous and environmental stress disrupt mitochondrial function by impacting critical processes in mitochondrial homeostasis, such as mitochondrial redox system, oxidative phosphorylation, biogenesis, and mitophagy. External stressors that interfere with the steady state activity of mitochondrial functions are generally associated with an increase in reactive oxygen species, inflammatory response, and induction of cellular senescence (inflammaging) potentially via mitochondrial damage associated molecular patterns (DAMPS). Many of these are the key events in the pathogenesis of chronic obstructive pulmonary disease (COPD) and its exacerbations. In this review, we highlight the primary mitochondrial quality control mechanisms that are influenced by oxidative stress/redox system, including role of mitochondria during inflammation and cellular senescence, and how mitochondrial dysfunction contributes to the pathogenesis of COPD and its exacerbations via pathogenic stimuli.
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Affiliation(s)
- Chad A Lerner
- Department of Environmental Medicine, Lung Biology and Disease Program, University of Rochester Medical Center, Rochester, NY, USA
| | - Isaac K Sundar
- Department of Environmental Medicine, Lung Biology and Disease Program, University of Rochester Medical Center, Rochester, NY, USA
| | - Irfan Rahman
- Department of Environmental Medicine, Lung Biology and Disease Program, University of Rochester Medical Center, Rochester, NY, USA.
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35
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Burton GJ, Yung HW, Murray AJ. Mitochondrial - Endoplasmic reticulum interactions in the trophoblast: Stress and senescence. Placenta 2016; 52:146-155. [PMID: 27091649 DOI: 10.1016/j.placenta.2016.04.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/30/2016] [Accepted: 04/01/2016] [Indexed: 12/22/2022]
Abstract
Placental stress has been implicated in the pathophysiology of complications of pregnancy, including growth restriction and pre-eclampsia. Initially, attention focused on oxidative stress, but recently mitochondrial and endoplasmic reticulum stress have been identified. Complex molecular interactions exist among these different forms of stress, making it unlikely that any occurs in isolation. In part, this is due to close physiological connections between the two organelles principally involved, mitochondria and the endoplasmic reticulum (ER), mediated through Ca2+ signalling. Here, we review the involvement of the mitochondria-ER unit in the generation of stress within the trophoblast, and consider consequences for obstetric outcome. Mild stress may induce adaptive responses, including upregulation of antioxidant defences and autophagy, while moderate levels may affect stem cell behaviour and reduce cell proliferation, contributing to the growth-restricted phenotype. High levels of stress can stimulate release of pro-inflammatory cytokines and anti-angiogenic factors, increasing the risk of pre-eclampsia. In addition, chronic stress may promote senescence of the trophoblast, which in other cell types leads to a pro-inflammatory senescence-associated secretory phenotype. Evidence from rodents suggests that a degree of trophoblastic stress develops with increasing gestational age in normal pregnancies. The increase in maternal concentrations of soluble fms-like tyrosine kinase-1 (sFlt-1) and reduction in placental growth factor (PlGF) suggest the same may occur in the human, starting around 30 weeks of pregnancy. Placental malperfusion, or co-existing maternal conditions, such as diabetes, will exacerbate that stress. Amelioration of trophoblastic stress should remain a research priority, but will be difficult due to the complexity of the molecular pathways involved.
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Affiliation(s)
- G J Burton
- Centre for Trophoblast Research and Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK.
| | - H W Yung
- Centre for Trophoblast Research and Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - A J Murray
- Centre for Trophoblast Research and Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
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36
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Mitochondria: Are they causal players in cellular senescence? BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2015; 1847:1373-9. [DOI: 10.1016/j.bbabio.2015.05.017] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/20/2015] [Accepted: 05/21/2015] [Indexed: 12/25/2022]
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Ziegler DV, Wiley CD, Velarde MC. Mitochondrial effectors of cellular senescence: beyond the free radical theory of aging. Aging Cell 2015; 14:1-7. [PMID: 25399755 PMCID: PMC4310776 DOI: 10.1111/acel.12287] [Citation(s) in RCA: 236] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2014] [Indexed: 12/22/2022] Open
Abstract
Cellular senescence is a process that results from a variety of stresses, leading to a state of irreversible growth arrest. Senescent cells accumulate during aging and have been implicated in promoting a variety of age-related diseases. Mitochondrial stress is an effective inducer of cellular senescence, but the mechanisms by which mitochondria regulate permanent cell growth arrest are largely unexplored. Here, we review some of the mitochondrial signaling pathways that participate in establishing cellular senescence. We discuss the role of mitochondrial reactive oxygen species (ROS), mitochondrial dynamics (fission and fusion), the electron transport chain (ETC), bioenergetic balance, redox state, metabolic signature, and calcium homeostasis in controlling cellular growth arrest. We emphasize that multiple mitochondrial signaling pathways, besides mitochondrial ROS, can induce cellular senescence. Together, these pathways provide a broader perspective for studying the contribution of mitochondrial stress to aging, linking mitochondrial dysfunction and aging through the process of cellular senescence.
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Affiliation(s)
- Dorian V. Ziegler
- Département de Biologie Ecole Normale Supérieure de Lyon 46 allée d'Italie Lyon 69007 France
- Buck Institute for Research on Aging 8001 Redwood Blvd. Novato CA 94945 USA
| | | | - Michael C. Velarde
- Buck Institute for Research on Aging 8001 Redwood Blvd. Novato CA 94945 USA
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38
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Distelmaier F, Valsecchi F, Liemburg-Apers DC, Lebiedzinska M, Rodenburg RJ, Heil S, Keijer J, Fransen J, Imamura H, Danhauser K, Seibt A, Viollet B, Gellerich FN, Smeitink JAM, Wieckowski MR, Willems PHGM, Koopman WJH. Mitochondrial dysfunction in primary human fibroblasts triggers an adaptive cell survival program that requires AMPK-α. Biochim Biophys Acta Mol Basis Dis 2014; 1852:529-40. [PMID: 25536029 DOI: 10.1016/j.bbadis.2014.12.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 12/11/2014] [Accepted: 12/15/2014] [Indexed: 01/06/2023]
Abstract
Dysfunction of complex I (CI) of the mitochondrial electron transport chain (ETC) features prominently in human pathology. Cell models of ETC dysfunction display adaptive survival responses that still are poorly understood but of relevance for therapy development. Here we comprehensively examined how primary human skin fibroblasts adapt to chronic CI inhibition. CI inhibition triggered transient and sustained changes in metabolism, redox homeostasis and mitochondrial (ultra)structure but no cell senescence/death. CI-inhibited cells consumed no oxygen and displayed minor mitochondrial depolarization, reverse-mode action of complex V, a slower proliferation rate and futile mitochondrial biogenesis. Adaptation was neither prevented by antioxidants nor associated with increased PGC1-α/SIRT1/mTOR levels. Survival of CI-inhibited cells was strictly glucose-dependent and accompanied by increased AMPK-α phosphorylation, which occurred without changes in ATP or cytosolic calcium levels. Conversely, cells devoid of AMPK-α died upon CI inhibition. Chronic CI inhibition did not increase mitochondrial superoxide levels or cellular lipid peroxidation and was paralleled by a specific increase in SOD2/GR, whereas SOD1/CAT/Gpx1/Gpx2/Gpx5 levels remained unchanged. Upon hormone stimulation, fully adapted cells displayed aberrant cytosolic and ER calcium handling due to hampered ATP fueling of ER calcium pumps. It is concluded that CI dysfunction triggers an adaptive program that depends on extracellular glucose and AMPK-α. This response avoids cell death by suppressing energy crisis, oxidative stress induction and substantial mitochondrial depolarization.
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Affiliation(s)
- Felix Distelmaier
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands; Department of Pediatrics, Nijmegen Center for Mitochondrial Disorders, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands; Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - Federica Valsecchi
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands; Department of Pediatrics, Nijmegen Center for Mitochondrial Disorders, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands
| | - Dania C Liemburg-Apers
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands
| | | | - Richard J Rodenburg
- Department of Pediatrics, Nijmegen Center for Mitochondrial Disorders, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands
| | - Sandra Heil
- Department of Human and Animal Physiology, Wageningen University, 6708 WD Wageningen, The Netherlands
| | - Jaap Keijer
- Department of Human and Animal Physiology, Wageningen University, 6708 WD Wageningen, The Netherlands
| | - Jack Fransen
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands
| | - Hiromi Imamura
- The Hakubi Project, Kyoto University, 606-8501 Kyoto, Japan
| | - Katharina Danhauser
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - Annette Seibt
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - Benoit Viollet
- Institut Cochin, NSERM U1016, Université Paris Descartes, 75014 Paris, France
| | - Frank N Gellerich
- Department of Stereotactic Neurosurgery, Otto-von-Guericke-Universität, 39120 Magdeburg, Germany
| | - Jan A M Smeitink
- Department of Pediatrics, Nijmegen Center for Mitochondrial Disorders, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands
| | | | - Peter H G M Willems
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands
| | - Werner J H Koopman
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands.
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39
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Nie X, Liang L, Xi H, Jiang S, Jiang J, Tang C, Liu X, Liu S, Wan C, Zhao J, Yang J. 2, 3, 7, 8-Tetrachlorodibenzo-p-dioxin induces premature senescence of astrocytes via WNT/β-catenin signaling and ROS production. J Appl Toxicol 2014; 35:851-60. [PMID: 25382668 DOI: 10.1002/jat.3084] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 09/04/2014] [Accepted: 09/18/2014] [Indexed: 12/20/2022]
Abstract
2, 3, 7, 8-tetrachlorodibenzo-p-dioxin (TCDD) is a ubiquitous environmental contaminant that could exert significant neurotoxicity in the human nervous system. Nevertheless, the molecular mechanism underlying TCDD-mediated neurotoxicity has not been clarified clearly. Herein, we investigated the potential role of TCDD in facilitating premature senescence in astrocytes and the underlying molecular mechanisms. Using the senescence-associated β-galactosidase (SA-β-Gal) assay, we demonstrated that TCDD exposure triggered significant premature senescence of astrocyte cells, which was accompanied by a marked activation of the Wingless and int (WNT)/β-catenin signaling pathway. In addition, TCDD altered the expression of senescence marker proteins, such as p16, p21 and GFAP, which together have been reported to be upregulated in aging astrocytes, in both dose- and time-dependent manners. Further, TCDD led to cell-cycle arrest, F-actin reorganization and the accumulation of cellular reactive oxygen species (ROS). Moreover, the ROS scavenger N-acetylcysteine (NAC) markedly attenuated TCDD-induced ROS production, cellular oxidative damage and astrocyte senescence. Notably, the application of XAV939, an inhibitor of WNT/β-catenin signaling pathway, ameliorated the effect of TCDD on cellular β-catenin level, ROS production, cellular oxidative damage and premature senescence in astrocytes. In summary, our findings indicated that TCDD might induce astrocyte senescence via WNT/β-catenin and ROS-dependent mechanisms.
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Affiliation(s)
- Xiaoke Nie
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Lingwei Liang
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Hanqing Xi
- Department of Disease Prevention, Second People's Hospital of Nantong, Nantong, Jiangsu Province, 226001, China
| | - Shengyang Jiang
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Junkang Jiang
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Cuiying Tang
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Xipeng Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Suyi Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Chunhua Wan
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Jianya Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, Jiangsu, 226001, China
| | - Jianbin Yang
- Department of Disease Prevention, Second People's Hospital of Nantong, Nantong, Jiangsu Province, 226001, China
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40
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A short acidic motif in ARF guards against mitochondrial dysfunction and melanoma susceptibility. Nat Commun 2014; 5:5348. [PMID: 25370744 DOI: 10.1038/ncomms6348] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 09/22/2014] [Indexed: 12/12/2022] Open
Abstract
ARF is a small, highly basic protein that can be induced by oncogenic stimuli and exerts growth-inhibitory and tumour-suppressive activities through the activation of p53. Here we show that, in human melanocytes, ARF is cytoplasmic, constitutively expressed, and required for maintaining low steady-state levels of superoxide under conditions of mitochondrial dysfunction. This mitochondrial activity of ARF is independent of its known autophagic and p53-dependent functions, and involves the evolutionarily conserved acidic motif GHDDGQ, which exhibits weak homology to BCL-2 homology 3 (BH3) domains and mediates interaction with BCL-xL--an important regulator of mitochondrial redox homeostasis. Melanoma-predisposing CDKN2A germline mutations, which affect conserved glycine and aspartate residues within the GHDDGQ motif, impair the ability of ARF to control superoxide production and suppress growth of melanoma cells in vivo. These results reveal an important cell-protective function of ARF that links mitochondrial dysfunction and susceptibility to melanoma.
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41
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Taddei ML, Cavallini L, Comito G, Giannoni E, Folini M, Marini A, Gandellini P, Morandi A, Pintus G, Raspollini MR, Zaffaroni N, Chiarugi P. Senescent stroma promotes prostate cancer progression: the role of miR-210. Mol Oncol 2014; 8:1729-46. [PMID: 25091736 DOI: 10.1016/j.molonc.2014.07.009] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 07/10/2014] [Accepted: 07/11/2014] [Indexed: 12/30/2022] Open
Abstract
We focused our interest on senescent human-derived fibroblasts in the progression of prostate cancer. Hypoxic senescent fibroblasts promote prostate cancer aggressiveness by inducing epithelial to mesenchymal transition (EMT) and by secreting energy-rich compounds to support cancer cell growth. Hypoxic senescent fibroblasts additionally increase: i) the recruitment of monocytes and their M2-macrophage polarization, ii) the recruitment of bone marrow-derived endothelial precursor cells, facilitating their vasculogenic ability and iii) capillary morphogenesis, proliferation and invasion of human mature endothelial cells. In addition, we highlight that overexpression of the hypoxia-induced miR-210 in young fibroblasts increases their senescence-associated features and converts them into cancer associated fibroblast (CAF)-like cells, able to promote cancer cells EMT, to support angiogenesis and to recruit endothelial precursor cells and monocytes/macrophages.
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Affiliation(s)
- Maria Letizia Taddei
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy.
| | - Lorenzo Cavallini
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Giuseppina Comito
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Elisa Giannoni
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Marco Folini
- Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via G. Amadeo 42, 20133 Milan, Italy
| | - Alberto Marini
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B 07100 Sassari, Italy
| | - Paolo Gandellini
- Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via G. Amadeo 42, 20133 Milan, Italy
| | - Andrea Morandi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Gianfranco Pintus
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B 07100 Sassari, Italy
| | - Maria Rosaria Raspollini
- Histology and Molecular Diagnostic, University Hospital Careggi, Viale G.B. Morgagni 85, 50134 Florence, Italy
| | - Nadia Zaffaroni
- Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via G. Amadeo 42, 20133 Milan, Italy
| | - Paola Chiarugi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; Center for Research, Transfer and High Education 'Study at Molecular and Clinical Level of Chronic, Inflammatory, Degenerative and Neoplastic Disorders for the Development on Novel Therapies', Italy
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42
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Wu SB, Wu YT, Wu TP, Wei YH. Role of AMPK-mediated adaptive responses in human cells with mitochondrial dysfunction to oxidative stress. Biochim Biophys Acta Gen Subj 2013; 1840:1331-44. [PMID: 24513455 DOI: 10.1016/j.bbagen.2013.10.034] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 10/06/2013] [Accepted: 10/22/2013] [Indexed: 02/09/2023]
Abstract
BACKGROUND Mitochondrial DNA (mtDNA) mutations are an important cause of mitochondrial diseases, for which there is no effective treatment due to complex pathophysiology. It has been suggested that mitochondrial dysfunction-elicited reactive oxygen species (ROS) plays a vital role in the pathogenesis of mitochondrial diseases, and the expression levels of several clusters of genes are altered in response to the elevated oxidative stress. Recently, we reported that glycolysis in affected cells with mitochondrial dysfunction is upregulated by AMP-activated protein kinase (AMPK), and such an adaptive response of metabolic reprogramming plays an important role in the pathophysiology of mitochondrial diseases. SCOPE OF REVIEW We summarize recent findings regarding the role of AMPK-mediated signaling pathways that are involved in: (1) metabolic reprogramming, (2) alteration of cellular redox status and antioxidant enzyme expression, (3) mitochondrial biogenesis, and (4) autophagy, a master regulator of mitochondrial quality control in skin fibroblasts from patients with mitochondrial diseases. MAJOR CONCLUSION Induction of adaptive responses via AMPK-PFK2, AMPK-FOXO3a, AMPK-PGC-1α, and AMPK-mTOR signaling pathways, respectively is modulated for the survival of human cells under oxidative stress induced by mitochondrial dysfunction. We suggest that AMPK may be a potential target for the development of therapeutic agents for the treatment of mitochondrial diseases. GENERAL SIGNIFICANCE Elucidation of the adaptive mechanism involved in AMPK activation cascades would lead us to gain a deeper insight into the crosstalk between mitochondria and the nucleus in affected tissue cells from patients with mitochondrial diseases. This article is part of a Special Issue entitled Frontiers of Mitochondrial Research.
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Affiliation(s)
- Shi-Bei Wu
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei 112, Taiwan
| | - Yu-Ting Wu
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei 112, Taiwan
| | - Tsung-Pu Wu
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei 112, Taiwan
| | - Yau-Huei Wei
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei 112, Taiwan; Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan.
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43
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Helal M, Das U, Bandy B, Islam A, Nazarali AJ, Dimmock JR. Mitochondrial dysfunction contributes to the cytotoxicity of some 3,5-bis(benzylidene)-4-piperidone derivatives in colon HCT-116 cells. Bioorg Med Chem Lett 2012; 23:1075-8. [PMID: 23305919 DOI: 10.1016/j.bmcl.2012.12.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 11/27/2012] [Accepted: 12/10/2012] [Indexed: 10/27/2022]
Abstract
The objectives of this study are to investigate the possible ways by which the curcumin analogs 2a and 2b exert their antiproliferative properties. The analogs 2a and 2b have submicromolar IC(50) values towards human HCT-116 colon cancer cells but are far less toxic to human non-malignant CRL-1790 colon cells. Both compounds affected a number of mitochondrial functions in HCT-116 cells namely increasing the intracellular concentrations of reactive oxygen species, inhibiting oxygen consumption and decreasing the mitochondrial membrane potential. These molecules also produced swelling of isolated rat liver mitochondria, supporting a mitochondrial mechanism of cytotoxicity. Both compounds reacted with glutathione in the presence of glutathione S-transferase π and hence they may be classified as thiol alkylators.
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Affiliation(s)
- Muath Helal
- Drug Design and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5C9
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44
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Verbon EH, Post JA, Boonstra J. The influence of reactive oxygen species on cell cycle progression in mammalian cells. Gene 2012; 511:1-6. [PMID: 22981713 DOI: 10.1016/j.gene.2012.08.038] [Citation(s) in RCA: 326] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 08/14/2012] [Accepted: 08/24/2012] [Indexed: 10/27/2022]
Abstract
Cell cycle regulation is performed by cyclins and cyclin dependent kinases (CDKs). Recently, it has become clear that reactive oxygen species (ROS) influence the presence and activity of these enzymes and thereby control cell cycle progression. In this review, we first describe the discovery of enzymes specialized in ROS production: the NADPH oxidase (NOX) complexes. This discovery led to the recognition of ROS as essential players in many cellular processes, including cell cycle progression. ROS influence cell cycle progression in a context-dependent manner via phosphorylation and ubiquitination of CDKs and cell cycle regulatory molecules. We show that ROS often regulate ubiquitination via intermediate phosphorylation and that phosphorylation is thus the major regulatory mechanism influenced by ROS. In addition, ROS have recently been shown to be able to activate growth factor receptors. We will illustrate the diverse roles of ROS as mediators in cell cycle regulation by incorporating phosphorylation, ubiquitination and receptor activation in a model of cell cycle regulation involving EGF-receptor activation. We conclude that ROS can no longer be ignored when studying cell cycle progression.
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45
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Capparelli C, Guido C, Whitaker-Menezes D, Bonuccelli G, Balliet R, Pestell TG, Goldberg AF, Pestell RG, Howell A, Sneddon S, Birbe R, Tsirigos A, Martinez-Outschoorn U, Sotgia F, Lisanti MP. Autophagy and senescence in cancer-associated fibroblasts metabolically supports tumor growth and metastasis via glycolysis and ketone production. Cell Cycle 2012; 11:2285-302. [PMID: 22684298 PMCID: PMC3383590 DOI: 10.4161/cc.20718] [Citation(s) in RCA: 178] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Senescent fibroblasts are known to promote tumor growth. However, the exact mechanism remains largely unknown. An important clue comes from recent studies linking autophagy with the onset of senescence. Thus, autophagy and senescence may be part of the same physiological process, known as the autophagy-senescence transition (AST). To test this hypothesis, human fibroblasts immortalized with telomerase (hTERT-BJ1) were stably transfected with autophagy genes (BNIP3, CTSB or ATG16L1). Their overexpression was sufficient to induce a constitutive autophagic phenotype, with features of mitophagy, mitochondrial dysfunction and a shift toward aerobic glycolysis, resulting in L-lactate and ketone body production. Autophagic fibroblasts also showed features of senescence, with increased p21(WAF1/CIP1), a CDK inhibitor, cellular hypertrophy and increased β-galactosidase activity. Thus, we genetically validated the existence of the autophagy-senescence transition. Importantly, autophagic-senescent fibroblasts promoted tumor growth and metastasis, when co-injected with human breast cancer cells, independently of angiogenesis. Autophagic-senescent fibroblasts stimulated mitochondrial metabolism in adjacent cancer cells, when the two cell types were co-cultured, as visualized by MitoTracker staining. In particular, autophagic ATG16L1 fibroblasts, which produced large amounts of ketone bodies (3-hydroxy-butyrate), had the strongest effects and promoted metastasis by up to 11-fold. Conversely, expression of ATG16L1 in epithelial cancer cells inhibited tumor growth, indicating that the effects of autophagy are compartment-specific. Thus, autophagic-senescent fibroblasts metabolically promote tumor growth and metastasis, by paracrine production of high-energy mitochondrial fuels. Our current studies provide genetic support for the importance of “two-compartment tumor metabolism” in driving tumor growth and metastasis via a simple energy transfer mechanism. Finally, β-galactosidase, a known lysosomal enzyme and biomarker of senescence, was localized to the tumor stroma in human breast cancer tissues, providing in vivo support for our hypothesis. Bioinformatic analysis of genome-wide transcriptional profiles from tumor stroma, isolated from human breast cancers, also validated the onset of an autophagy-senescence transition. Taken together, these studies establish a new functional link between host aging, autophagy, the tumor microenvironment and cancer metabolism.
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Affiliation(s)
- Claudia Capparelli
- The Jefferson Stem Cell Biology and Regenerative Medicine Center, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
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46
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Is There a Link between Mitochondrial Reserve Respiratory Capacity and Aging? J Aging Res 2012; 2012:192503. [PMID: 22720157 PMCID: PMC3375017 DOI: 10.1155/2012/192503] [Citation(s) in RCA: 156] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 04/11/2012] [Indexed: 12/21/2022] Open
Abstract
Oxidative phosphorylation is an indispensable resource of ATP in tissues with high requirement of energy. If the ATP demand is not met, studies suggest that this will lead to senescence and cell death in the affected tissue. The term reserve respiratory capacity or spare respiratory capacity is used to describe the amount of extra ATP that can be produced by oxidative phosphorylation in case of a sudden increase in energy demand. Depletion of the reserve respiratory capacity has been related to a range of pathologies affecting high energy requiring tissues. During aging of an organism, and as a result of mitochondrial dysfunctions, the efficiency of oxidative phosphorylation declines. Based on examples from the energy requiring tissues such as brain, heart, and skeletal muscle, we propose that the age-related decline of oxidative phosphorylation decreases the reserve respiratory capacity of the affected tissue, sensitizes the cells to surges in ATP demand, and increases the risk of resulting pathologies.
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47
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Velarde MC, Flynn JM, Day NU, Melov S, Campisi J. Mitochondrial oxidative stress caused by Sod2 deficiency promotes cellular senescence and aging phenotypes in the skin. Aging (Albany NY) 2012; 4:3-12. [PMID: 22278880 PMCID: PMC3292901 DOI: 10.18632/aging.100423] [Citation(s) in RCA: 186] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 01/18/2012] [Indexed: 12/28/2022]
Abstract
Cellular senescence arrests the proliferation of mammalian cells at risk for neoplastic transformation, and is also associated with aging. However, the factors that cause cellular senescence during aging are unclear. Excessive reactive oxygen species (ROS) have been shown to cause cellular senescence in culture, and accumulated molecular damage due to mitochondrial ROS has long been thought to drive aging phenotypesin vivo. Here, we test the hypothesis that mitochondrial oxidative stress can promote cellular senescence in vivo and contribute to aging phenotypes in vivo, specifically in the skin. We show that the number of senescent cells, as well as impaired mitochondrial (complex II) activity increase in naturally aged mouse skin. Using a mouse model of genetic Sod2 deficiency, we show that failure to express this important mitochondrial anti-oxidant enzyme also impairs mitochondrial complex II activity, causes nuclear DNA damage, and induces cellular senescence but not apoptosis in the epidermis. Sod2 deficiency also reduced the number of cells and thickness of the epidermis, while increasing terminal differentiation. Our results support the idea that mitochondrial oxidative stress and cellular senescence contribute to aging skin phenotypes in vivo.
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Affiliation(s)
| | - James M. Flynn
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | | | - Simon Melov
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Lawrence Berkley National Laboratory, Berkeley, CA 94720, USA
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48
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Suski JM, Karkucinska-Wieckowska A, Lebiedzinska M, Giorgi C, Szczepanowska J, Szabadkai G, Duszynski J, Pronicki M, Pinton P, Wieckowski MR. p66Shc aging protein in control of fibroblasts cell fate. Int J Mol Sci 2011; 12:5373-89. [PMID: 21954365 PMCID: PMC3179172 DOI: 10.3390/ijms12085373] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 08/02/2011] [Accepted: 08/15/2011] [Indexed: 02/05/2023] Open
Abstract
Reactive oxygen species (ROS) are wieldy accepted as one of the main factors of the aging process. These highly reactive compounds modify nucleic acids, proteins and lipids and affect the functionality of mitochondria in the first case and ultimately of the cell. Any agent or genetic modification that affects ROS production and detoxification can be expected to influence longevity. On the other hand, genetic manipulations leading to increased longevity can be expected to involve cellular changes that affect ROS metabolism. The 66-kDa isoform of the growth factor adaptor Shc (p66Shc) has been recognized as a relevant factor to the oxygen radical theory of aging. The most recent data indicate that p66Shc protein regulates life span in mammals and its phosphorylation on serine 36 is important for the initiation of cell death upon oxidative stress. Moreover, there is strong evidence that apart from aging, p66Shc may be implicated in many oxidative stress-associated pathologies, such as diabetes, mitochondrial and neurodegenerative disorders and tumorigenesis. This article summarizes recent knowledge about the role of p66Shc in aging and senescence and how this protein can influence ROS production and detoxification, focusing on studies performed on skin and skin fibroblasts.
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Affiliation(s)
- Jan M. Suski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw 02-093, Poland; E-Mails: (J.M.S.); (M.L.); (J.S.); (J.D.)
- Department of Experimental and Diagnostic Medicine, Section of General Pathology, Interdisciplinary Center for the Study of Inflammation (ICSI) and LTTA Center, University of Ferrara, Ferrara 9-44121, Italy; E-Mails: (C.G.); (P.P.)
| | | | - Magdalena Lebiedzinska
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw 02-093, Poland; E-Mails: (J.M.S.); (M.L.); (J.S.); (J.D.)
| | - Carlotta Giorgi
- Department of Experimental and Diagnostic Medicine, Section of General Pathology, Interdisciplinary Center for the Study of Inflammation (ICSI) and LTTA Center, University of Ferrara, Ferrara 9-44121, Italy; E-Mails: (C.G.); (P.P.)
| | - Joanna Szczepanowska
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw 02-093, Poland; E-Mails: (J.M.S.); (M.L.); (J.S.); (J.D.)
| | - Gyorgy Szabadkai
- University College London, Department of Cell and Developmental Biology, Consortium for Mitochondrial Research, London WC1E 6BT, UK; E-Mail:
| | - Jerzy Duszynski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw 02-093, Poland; E-Mails: (J.M.S.); (M.L.); (J.S.); (J.D.)
| | - Maciej Pronicki
- Department of Pathology, The Children’s Memorial Health Institute, Warsaw 04-730, Poland; E-Mails: (A.K.-W.); (M.P.)
| | - Paolo Pinton
- Department of Experimental and Diagnostic Medicine, Section of General Pathology, Interdisciplinary Center for the Study of Inflammation (ICSI) and LTTA Center, University of Ferrara, Ferrara 9-44121, Italy; E-Mails: (C.G.); (P.P.)
| | - Mariusz R. Wieckowski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw 02-093, Poland; E-Mails: (J.M.S.); (M.L.); (J.S.); (J.D.)
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Kozieł R, Greussing R, Maier AB, Declercq L, Jansen-Dürr P. Functional interplay between mitochondrial and proteasome activity in skin aging. J Invest Dermatol 2010; 131:594-603. [PMID: 21191400 DOI: 10.1038/jid.2010.383] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
According to the mitochondrial theory of aging, reactive oxygen species (ROS) derived primarily from mitochondria cause cumulative oxidative damage to various cellular molecules and thereby contribute to the aging process. On the other hand, a pivotal role of the proteasome, as a main proteolytic system implicated in the degradation of oxidized proteins during aging, is suggested. In this study, we analyzed mitochondrial function in dermal fibroblasts derived from biopsies obtained from healthy young, middle-aged, and old donors. We also determined proteasome activity in these cells, using a degron-destabilized green fluorescent protein (GFP)-based reporter protein. We found a significant decrease in mitochondrial membrane potential in samples from aged donors, accompanied by a significant increase in ROS levels. Respiratory activity was not significantly altered with donor age, probably reflecting genetic variation. Proteasome activity was significantly decreased in fibroblasts from middle-aged donors compared with young donors; fibroblasts derived from the oldest donors displayed a high heterogeneity in this assay. We also found intraindividual coregulation of mitochondrial and proteasomal activities in all human fibroblast strains tested, suggesting that both systems are interdependent. Accordingly, pharmacological inhibition of the proteasome led to decreased mitochondrial function, whereas inhibition of mitochondrial function in turn reduced proteasome activity.
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Affiliation(s)
- Rafał Kozieł
- Institute for Biomedical Aging Research, Austrian Academy of Sciences, Innsbruck, Austria
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50
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Laschober GT, Ruli D, Hofer E, Muck C, Carmona-Gutierrez D, Ring J, Hutter E, Ruckenstuhl C, Micutkova L, Brunauer R, Jamnig A, Trimmel D, Herndler-Brandstetter D, Brunner S, Zenzmaier C, Sampson N, Breitenbach M, Fröhlich KU, Grubeck-Loebenstein B, Berger P, Wieser M, Grillari-Voglauer R, Thallinger GG, Grillari J, Trajanoski Z, Madeo F, Lepperdinger G, Jansen-Dürr P. Identification of evolutionarily conserved genetic regulators of cellular aging. Aging Cell 2010; 9:1084-97. [PMID: 20883526 PMCID: PMC2997327 DOI: 10.1111/j.1474-9726.2010.00637.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
To identify new genetic regulators of cellular aging and senescence, we performed genome-wide comparative RNA profiling with selected human cellular model systems, reflecting replicative senescence, stress-induced premature senescence, and distinct other forms of cellular aging. Gene expression profiles were measured, analyzed, and entered into a newly generated database referred to as the GiSAO database. Bioinformatic analysis revealed a set of new candidate genes, conserved across the majority of the cellular aging models, which were so far not associated with cellular aging, and highlighted several new pathways that potentially play a role in cellular aging. Several candidate genes obtained through this analysis have been confirmed by functional experiments, thereby validating the experimental approach. The effect of genetic deletion on chronological lifespan in yeast was assessed for 93 genes where (i) functional homologues were found in the yeast genome and (ii) the deletion strain was viable. We identified several genes whose deletion led to significant changes of chronological lifespan in yeast, featuring both lifespan shortening and lifespan extension. In conclusion, an unbiased screen across species uncovered several so far unrecognized molecular pathways for cellular aging that are conserved in evolution.
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Affiliation(s)
- Gerhard T Laschober
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Doris Ruli
- Institute for Molecular Biosciences, University of GrazHumboldtstrasse 50, 8010 Graz, Austria
| | - Edith Hofer
- Institute for Genomics and Bioinformatics, Graz University of TechnologyPetersgasse 14, 8010 Graz, Austria
| | - Christoph Muck
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Didac Carmona-Gutierrez
- Institute for Molecular Biosciences, University of GrazHumboldtstrasse 50, 8010 Graz, Austria
| | - Julia Ring
- Institute for Molecular Biosciences, University of GrazHumboldtstrasse 50, 8010 Graz, Austria
| | - Eveline Hutter
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Christoph Ruckenstuhl
- Institute for Molecular Biosciences, University of GrazHumboldtstrasse 50, 8010 Graz, Austria
| | - Lucia Micutkova
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Regina Brunauer
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Angelika Jamnig
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Daniela Trimmel
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | | | - Stefan Brunner
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Christoph Zenzmaier
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Natalie Sampson
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | | | - Kai-Uwe Fröhlich
- Institute for Molecular Biosciences, University of GrazHumboldtstrasse 50, 8010 Graz, Austria
| | | | - Peter Berger
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Matthias Wieser
- Aging and Immortalization Research, Department of Biotechnology, University of Natural Resources and Applied Life SciencesVienna, Austria
| | - Regina Grillari-Voglauer
- Aging and Immortalization Research, Department of Biotechnology, University of Natural Resources and Applied Life SciencesVienna, Austria
| | - Gerhard G Thallinger
- Institute for Genomics and Bioinformatics, Graz University of TechnologyPetersgasse 14, 8010 Graz, Austria
| | - Johannes Grillari
- Aging and Immortalization Research, Department of Biotechnology, University of Natural Resources and Applied Life SciencesVienna, Austria
| | - Zlatko Trajanoski
- Institute for Genomics and Bioinformatics, Graz University of TechnologyPetersgasse 14, 8010 Graz, Austria
- Biocenter, Section for Bioinformatics, Innsbruck Medical UniversityInnsbruck, Austria
| | - Frank Madeo
- Institute for Molecular Biosciences, University of GrazHumboldtstrasse 50, 8010 Graz, Austria
| | - Günter Lepperdinger
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
| | - Pidder Jansen-Dürr
- Institute for Biomedical Aging Research, Austrian Academy of SciencesRennweg 10, A-6020 Innsbruck, Austria
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