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Panagiotou N, McGuinness D, Jaminon AMG, Mees B, Selman C, Schurgers L, Shiels PG. Microvesicle-Mediated Tissue Regeneration Mitigates the Effects of Cellular Ageing. Cells 2023; 12:1707. [PMID: 37443741 PMCID: PMC10340655 DOI: 10.3390/cells12131707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Extracellular vesicles (EVs), comprising microvesicles (MVs) and exosomes (Exos), are membranous vesicles secreted by cells which mediate the repair of cellular and tissue damage via paracrine mechanisms. The action of EVs under normative and morbid conditions in the context of ageing remains largely unexplored. We demonstrate that MVs, but not Exos, from Pathfinder cells (PCs), a putative stem cell regulatory cell type, enhance the repair of human dermal fibroblast (HDF) and mesenchymal stem cell (MSC) co-cultures, following both mechanical and genotoxic stress. Critically, this effect was found to be both cellular age and stress specific. Notably, MV treatment was unable to repair mechanical injury in older co-cultures but remained therapeutic following genotoxic stress. These observations were further confirmed in human dermal fibroblast (HDF) and vascular smooth muscle cell (VSMC) co-cultures of increasing cellular age. In a model of comorbidity comprising co-cultures of HDFs and highly senescent abdominal aortic aneurysm (AAA) VSMCs, MV administration appeared to be senotherapeutic, following both mechanical and genotoxic stress. Our data provide insights into EVs and the specific roles they play during tissue repair and ageing. These data will potentiate the development of novel cell-free therapeutic interventions capable of attenuating age-associated morbidities and avoiding undesired effects.
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Affiliation(s)
- Nikolaos Panagiotou
- Davidson Building, School of Molecular Biosciences, University of Glasgow, Glasgow G12 8QQ, UK; (N.P.)
| | - Dagmara McGuinness
- School of Infection & Immunity, University of Glasgow, Glasgow G12 8QQ, UK; (D.M.)
| | - Armand M. G. Jaminon
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University,
Maastricht, 6229 ER Maastricht, NetherlandsThe Netherlands
| | - Barend Mees
- Department of Vascular Surgery, Maastricht University Medical Centre (MUMC),
Maastricht, The Netherlands;
| | - Colin Selman
- Graham Kerr Building, College of Medical, Veterinary & Life Sciences, Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK;
| | - Leon Schurgers
- School of Infection & Immunity, University of Glasgow, Glasgow G12 8QQ, UK; (D.M.)
- Graham Kerr Building, College of Medical, Veterinary & Life Sciences, Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK;
| | - Paul G. Shiels
- Davidson Building, School of Molecular Biosciences, University of Glasgow, Glasgow G12 8QQ, UK; (N.P.)
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2
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Xie K, Fuchs H, Scifo E, Liu D, Aziz A, Aguilar-Pimentel JA, Amarie OV, Becker L, da Silva-Buttkus P, Calzada-Wack J, Cho YL, Deng Y, Edwards AC, Garrett L, Georgopoulou C, Gerlini R, Hölter SM, Klein-Rodewald T, Kramer M, Leuchtenberger S, Lountzi D, Mayer-Kuckuk P, Nover LL, Oestereicher MA, Overkott C, Pearson BL, Rathkolb B, Rozman J, Russ J, Schaaf K, Spielmann N, Sanz-Moreno A, Stoeger C, Treise I, Bano D, Busch DH, Graw J, Klingenspor M, Klopstock T, Mock BA, Salomoni P, Schmidt-Weber C, Weiergräber M, Wolf E, Wurst W, Gailus-Durner V, Breteler MMB, Hrabě de Angelis M, Ehninger D. Deep phenotyping and lifetime trajectories reveal limited effects of longevity regulators on the aging process in C57BL/6J mice. Nat Commun 2022; 13:6830. [PMID: 36369285 PMCID: PMC9652467 DOI: 10.1038/s41467-022-34515-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 10/27/2022] [Indexed: 11/13/2022] Open
Abstract
Current concepts regarding the biology of aging are primarily based on studies aimed at identifying factors regulating lifespan. However, lifespan as a sole proxy measure for aging can be of limited value because it may be restricted by specific pathologies. Here, we employ large-scale phenotyping to analyze hundreds of markers in aging male C57BL/6J mice. For each phenotype, we establish lifetime profiles to determine when age-dependent change is first detectable relative to the young adult baseline. We examine key lifespan regulators (putative anti-aging interventions; PAAIs) for a possible countering of aging. Importantly, unlike most previous studies, we include in our study design young treated groups of animals, subjected to PAAIs prior to the onset of detectable age-dependent phenotypic change. Many PAAI effects influence phenotypes long before the onset of detectable age-dependent change, but, importantly, do not alter the rate of phenotypic change. Hence, these PAAIs have limited effects on aging.
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Affiliation(s)
- Kan Xie
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Helmut Fuchs
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Enzo Scifo
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Dan Liu
- Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Ahmad Aziz
- Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany.,Department of Neurology, Faculty of Medicine, University of Bonn, Bonn, Germany
| | - Juan Antonio Aguilar-Pimentel
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Oana Veronica Amarie
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Lore Becker
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Patricia da Silva-Buttkus
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Julia Calzada-Wack
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Yi-Li Cho
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Yushuang Deng
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - A Cole Edwards
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Lillian Garrett
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany.,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Christina Georgopoulou
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Raffaele Gerlini
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Sabine M Hölter
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany.,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Tanja Klein-Rodewald
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | | | - Stefanie Leuchtenberger
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Dimitra Lountzi
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Phillip Mayer-Kuckuk
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Lena L Nover
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Manuela A Oestereicher
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Clemens Overkott
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Brandon L Pearson
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany.,Mailman School of Public Health, Columbia University, 630W. 168th St., New York, NY, 10032, USA
| | - Birgit Rathkolb
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany.,Institute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Jan Rozman
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany.,Institute of Molecular Genetics of the Czech Academy of Sciences, Czech Centre for Phenogenomics, Prumyslova 595, Vestec, 252 50, Czech Republic
| | - Jenny Russ
- Nuclear Function Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Kristina Schaaf
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Nadine Spielmann
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Adrián Sanz-Moreno
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Claudia Stoeger
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Irina Treise
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Daniele Bano
- Aging and Neurodegeneration Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Dirk H Busch
- Institute for Medical Microbiology, Immunology, and Hygiene, Technische Universität München, 81675, Munich, Germany
| | - Jochen Graw
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Martin Klingenspor
- Molecular Nutritional Medicine, Else Kröner-Fresenius Center, Technische Universität München, 85350, Freising-Weihenstephan, Germany
| | - Thomas Klopstock
- Friedrich-Baur-Institut, Department of Neurology, Ludwig-Maximilians-University Munich, 80336, Munich, Germany.,DZNE, German Center for Neurodegenerative Diseases, 80336, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), 80336, Munich, Germany
| | - Beverly A Mock
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, MD, 20892, USA
| | - Paolo Salomoni
- Nuclear Function Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany
| | - Carsten Schmidt-Weber
- Center of Allergy & Environment (ZAUM), Technische Universität München, and Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Marco Weiergräber
- Research Group Experimental Neuropsychopharmacology, Federal Institute for Drugs and Medical Devices, 53175, Bonn, Germany
| | - Eckhard Wolf
- Institute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Wolfgang Wurst
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany.,DZNE, German Center for Neurodegenerative Diseases, 80336, Munich, Germany.,Chair of Developmental Genetics, TUM School of Life Sciences (SoLS), Technische Universität München, Freising, Germany
| | - Valérie Gailus-Durner
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Monique M B Breteler
- Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany.,Institute for Medical Biometry, Informatics and Epidemiology, Faculty of Medicine, University of Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Martin Hrabě de Angelis
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany.,Chair of Experimental Genetics, TUM School of Life Sciences (SoLS), Technische Universität München, 85354, Freising, Germany
| | - Dan Ehninger
- Translational Biogerontology Lab, German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1/99, 53127, Bonn, Germany.
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3
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Culig L, Chu X, Bohr VA. Neurogenesis in aging and age-related neurodegenerative diseases. Ageing Res Rev 2022; 78:101636. [PMID: 35490966 PMCID: PMC9168971 DOI: 10.1016/j.arr.2022.101636] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/14/2022] [Accepted: 04/25/2022] [Indexed: 12/11/2022]
Abstract
Adult neurogenesis, the process by which neurons are generated in certain areas of the adult brain, declines in an age-dependent manner and is one potential target for extending cognitive healthspan. Aging is a major risk factor for neurodegenerative diseases and, as lifespans are increasing, these health challenges are becoming more prevalent. An age-associated loss in neural stem cell number and/or activity could cause this decline in brain function, so interventions that reverse aging in stem cells might increase the human cognitive healthspan. In this review, we describe the involvement of adult neurogenesis in neurodegenerative diseases and address the molecular mechanistic aspects of neurogenesis that involve some of the key aggregation-prone proteins in the brain (i.e., tau, Aβ, α-synuclein, …). We summarize the research pertaining to interventions that increase neurogenesis and regulate known targets in aging research, such as mTOR and sirtuins. Lastly, we share our outlook on restoring the levels of neurogenesis to physiological levels in elderly individuals and those with neurodegeneration. We suggest that modulating neurogenesis represents a potential target for interventions that could help in the fight against neurodegeneration and cognitive decline.
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Affiliation(s)
- Luka Culig
- Section on DNA Repair, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Xixia Chu
- Section on DNA Repair, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Vilhelm A Bohr
- Section on DNA Repair, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA.
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4
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Hydrogen sulfide in ageing, longevity and disease. Biochem J 2021; 478:3485-3504. [PMID: 34613340 PMCID: PMC8589328 DOI: 10.1042/bcj20210517] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 12/21/2022]
Abstract
Hydrogen sulfide (H2S) modulates many biological processes, including ageing. Initially considered a hazardous toxic gas, it is now recognised that H2S is produced endogenously across taxa and is a key mediator of processes that promote longevity and improve late-life health. In this review, we consider the key developments in our understanding of this gaseous signalling molecule in the context of health and disease, discuss potential mechanisms through which H2S can influence processes central to ageing and highlight the emergence of novel H2S-based therapeutics. We also consider the major challenges that may potentially hinder the development of such therapies.
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5
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Ivimey-Cook ER, Sales K, Carlsson H, Immler S, Chapman T, Maklakov AA. Transgenerational fitness effects of lifespan extension by dietary restriction in Caenorhabditis elegans. Proc Biol Sci 2021; 288:20210701. [PMID: 33975472 PMCID: PMC8113902 DOI: 10.1098/rspb.2021.0701] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 04/15/2021] [Indexed: 12/28/2022] Open
Abstract
Dietary restriction (DR) increases lifespan in a broad variety of organisms and improves health in humans. However, long-term transgenerational consequences of dietary interventions are poorly understood. Here, we investigated the effect of DR by temporary fasting (TF) on mortality risk, age-specific reproduction and fitness across three generations of descendants in Caenorhabditis elegans. We show that while TF robustly reduces mortality risk and improves late-life reproduction of the individuals subject to TF (P0), it has a wide range of both positive and negative effects on their descendants (F1-F3). Remarkably, great-grandparental exposure to TF in early life reduces fitness and increases mortality risk of F3 descendants to such an extent that TF no longer promotes a lifespan extension. These findings reveal that transgenerational trade-offs accompany the instant benefits of DR, underscoring the need to consider fitness of future generations in pursuit of healthy ageing.
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Affiliation(s)
- Edward R. Ivimey-Cook
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Kris Sales
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Hanne Carlsson
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Simone Immler
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Tracey Chapman
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
| | - Alexei A. Maklakov
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TU, UK
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6
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7
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Moatt JP, Savola E, Regan JC, Nussey DH, Walling CA. Lifespan Extension Via Dietary Restriction: Time to Reconsider the Evolutionary Mechanisms? Bioessays 2020; 42:e1900241. [DOI: 10.1002/bies.201900241] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 04/24/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Joshua P. Moatt
- Institute of Evolutionary BiologySchool of Biological ScienceUniversity of Edinburgh Edinburgh EH9 3FL UK
| | - Eevi Savola
- Institute of Evolutionary BiologySchool of Biological ScienceUniversity of Edinburgh Edinburgh EH9 3FL UK
| | - Jennifer C. Regan
- Institute for Immunology and InfectionSchool of Biological ScienceUniversity of Edinburgh Edinburgh EH9 3FL UK
| | - Daniel H. Nussey
- Institute of Evolutionary BiologySchool of Biological ScienceUniversity of Edinburgh Edinburgh EH9 3FL UK
| | - Craig A. Walling
- Institute of Evolutionary BiologySchool of Biological ScienceUniversity of Edinburgh Edinburgh EH9 3FL UK
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8
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McCracken AW, Adams G, Hartshorne L, Tatar M, Simons MJP. The hidden costs of dietary restriction: Implications for its evolutionary and mechanistic origins. SCIENCE ADVANCES 2020; 6:eaay3047. [PMID: 32128403 PMCID: PMC7034997 DOI: 10.1126/sciadv.aay3047] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 12/04/2019] [Indexed: 05/14/2023]
Abstract
Dietary restriction (DR) extends life span across taxa. Despite considerable research, universal mechanisms of DR have not been identified, limiting its translational potential. Guided by the conviction that DR evolved as an adaptive, pro-longevity physiological response to food scarcity, biomedical science has interpreted DR as an activator of pro-longevity molecular pathways. Current evolutionary theory predicts that organisms invest in their soma during DR, and thus when resource availability improves, should outcompete rich-fed controls in survival and/or reproduction. Testing this prediction in Drosophila melanogaster (N > 66,000 across 11 genotypes), our experiments revealed substantial, unexpected mortality costs when flies returned to a rich diet following DR. The physiological effects of DR should therefore not be interpreted as intrinsically pro-longevity, acting via somatic maintenance. We suggest DR could alternatively be considered an escape from costs incurred under nutrient-rich conditions, in addition to costs associated with DR.
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Affiliation(s)
- Andrew W. McCracken
- Department of Animal and Plant Sciences and Bateson Centre, The University of Sheffield, Sheffield S10 2TN, UK
| | - Gracie Adams
- Department of Animal and Plant Sciences and Bateson Centre, The University of Sheffield, Sheffield S10 2TN, UK
| | - Laura Hartshorne
- Department of Animal and Plant Sciences and Bateson Centre, The University of Sheffield, Sheffield S10 2TN, UK
| | - Marc Tatar
- Department of Ecology and Evolutionary Biology, Brown University, Providence, RI, USA
| | - Mirre J. P. Simons
- Department of Animal and Plant Sciences and Bateson Centre, The University of Sheffield, Sheffield S10 2TN, UK
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9
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Page MM, Schuster EF, Mudaliar M, Herzyk P, Withers DJ, Selman C. Common and unique transcriptional responses to dietary restriction and loss of insulin receptor substrate 1 (IRS1) in mice. Aging (Albany NY) 2019; 10:1027-1052. [PMID: 29779018 PMCID: PMC5990393 DOI: 10.18632/aging.101446] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/08/2018] [Indexed: 11/25/2022]
Abstract
Dietary restriction (DR) is the most widely studied non-genetic intervention capable of extending lifespan across multiple taxa. Modulation of genes, primarily within the insulin/insulin-like growth factor signalling (IIS) and the mechanistic target of rapamycin (mTOR) signalling pathways also act to extend lifespan in model organisms. For example, mice lacking insulin receptor substrate-1 (IRS1) are long-lived and protected against several age-associated pathologies. However, it remains unclear how these particular interventions act mechanistically to produce their beneficial effects. Here, we investigated transcriptional responses in wild-type and IRS1 null mice fed an ad libitum diet (WTAL and KOAL) or fed a 30% DR diet (WTDR or KODR). Using an RNAseq approach we noted a high correlation coefficient of differentially expressed genes existed within the same tissue across WTDR and KOAL mice and many metabolic features were shared between these mice. Overall, we report that significant overlap exists in the tissue-specific transcriptional response between long-lived DR mice and IRS1 null mice. However, there was evidence of disconnect between transcriptional signatures and certain phenotypic measures between KOAL and KODR, in that additive effects on body mass were observed but at the transcriptional level DR induced a unique set of genes in these already long-lived mice.
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Affiliation(s)
- Melissa M Page
- Institute des Sciences de la Vie, Faculty of Sciences, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Eugene F Schuster
- The Breast Cancer Now Toby Robins Research Centre The Institute of Cancer Research, London, UK
| | - Manikhandan Mudaliar
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.,Glasgow Molecular Pathology Node, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.,Present address: Cerevance, Cambridge Science Park, Cambridge, UK
| | - Pawel Herzyk
- Glasgow Polyomics, Wolfson Wohl Cancer Research Centre, University of Glasgow, Garscube Campus, Bearsden, UK.,Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Dominic J Withers
- MRC London Institute of Medical Sciences, London, UK.,Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, London, UK
| | - Colin Selman
- Glasgow Ageing Research Network (GARNER), Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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10
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Moatt JP, Fyfe MA, Heap E, Mitchell LJM, Moon F, Walling CA. Reconciling nutritional geometry with classical dietary restriction: Effects of nutrient intake, not calories, on survival and reproduction. Aging Cell 2019; 18:e12868. [PMID: 30456818 PMCID: PMC6352320 DOI: 10.1111/acel.12868] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/15/2018] [Accepted: 09/16/2018] [Indexed: 11/28/2022] Open
Abstract
Dietary restriction (DR) is one of the main experimental paradigms to investigate the mechanisms that determine lifespan and aging. Yet, the exact nutritional parameters responsible for DR remain unclear. Recently, the advent of the geometric framework of nutrition (GF) has refocussed interest from calories to dietary macronutrients. However, GF experiments focus on invertebrates, with the importance of macronutrients in vertebrates still widely debated. This has led to the suggestion of a fundamental difference in the mode of action of DR between vertebrates and invertebrates, questioning the suggestion of an evolutionarily conserved mechanism. The use of dietary dilution rather than restriction in GF studies makes comparison with traditional DR studies difficult. Here, using a novel nonmodel vertebrate system (the stickleback fish, Gasterosteus aculeatus), we test the effect of macronutrient versus calorie intake on key fitness‐related traits, both using the GF and avoiding dietary dilution. We find that the intake of macronutrients rather than calories determines both mortality risk and reproduction. Male mortality risk was lowest on intermediate lipid intakes, and female risk was generally reduced by low protein intakes. The effect of macronutrient intake on reproduction was similar between the sexes, with high protein intakes maximizing reproduction. Our results provide, to our knowledge, the first evidence that macronutrient, not caloric, intake predicts changes in mortality and reproduction in the absence of dietary dilution. This supports the suggestion of evolutionary conservation in the effect of diet on lifespan, but via variation in macronutrient intake rather than calories.
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Affiliation(s)
- Joshua P. Moatt
- Institute of Evolutionary Biology, School of Biological Sciences; University of Edinburgh; Edinburgh UK
| | - Murray A. Fyfe
- Institute of Evolutionary Biology, School of Biological Sciences; University of Edinburgh; Edinburgh UK
| | - Elizabeth Heap
- Edinburgh Genomics, Roslin Institute; University of Edinburgh; Edinburgh UK
| | - Luke J. M. Mitchell
- Institute of Evolutionary Biology, School of Biological Sciences; University of Edinburgh; Edinburgh UK
| | - Fiona Moon
- Institute of Evolutionary Biology, School of Biological Sciences; University of Edinburgh; Edinburgh UK
| | - Craig A. Walling
- Institute of Evolutionary Biology, School of Biological Sciences; University of Edinburgh; Edinburgh UK
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11
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Kim SH, Kim BK, Park SK. Selenocysteine mimics the effect of dietary restriction on lifespan via SKN‑1 and retards age‑associated pathophysiological changes in Caenorhabditis elegans. Mol Med Rep 2018; 18:5389-5398. [PMID: 30365103 PMCID: PMC6236260 DOI: 10.3892/mmr.2018.9590] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 10/12/2018] [Indexed: 12/14/2022] Open
Abstract
Selenocysteine, a sulfur-containing amino acid, can modulate cellular oxidative stress defense systems by incorporating into anti-oxidant enzymes such as glutathione peroxidase and thioredoxin reductase. Selenocysteine can also prevent cancer, neurodegenerative diseases and cardiovascular diseases. A recent study revealed that dietary supplementation with selenocysteine can increase the resistance of Caenorhabditis elegans to environmental stressors and its lifespan. The objective of the present study was to identify the underlying mechanism involved in the lifespan-extending effect of selenocysteine and the effect of selenocysteine on age-associated pathophysiological changes. Lifespan assays with known long-lived mutants of age-1 (the ortholog of the phosphoinositide 3-kinase), clk-1 (the ortholog of demethoxyubiquinone hydroxylase) and eat-2 (a ligand-gated ion channel subunit) revealed that the effect of selenocysteine on lifespan specifically overlapped with that of the eat-2 mutation, a genetic model of dietary restriction (DR). Selenocysteine mimicked the effect of DR on the bacterial dilution method. It required SKN-1 (the ortholog of mammalian nuclear factor-erythroid-related factor) for lifespan extension. In addition, selenocysteine significantly delayed the paralysis induced by human amyloid-β gene, positively correlated with the incidence of Alzheimer's disease. The effect of selenocysteine on amyloid-β-induced toxicity was dependent on the nuclear localization of DAF-16. Reduced survival caused by high-glucose-diet was recovered by selenocysteine. Selenocysteine also reduced the cellular level of reactive oxygen species known to be increased by high-glucose-diet. The results of the present study suggested that selenocysteine can mimic the effect of DR on lifespan and age-associated pathophysiological alterations, providing scientific evidence for the development of DR mimetics using selenocysteine.
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Affiliation(s)
- So-Hyeon Kim
- Department of Medical Biotechnology, College of Medical Sciences, Soonchunhyang University, Asan, Chungnam 31538, Republic of Korea
| | - Bo-Kyoung Kim
- Department of Medical Biotechnology, College of Medical Sciences, Soonchunhyang University, Asan, Chungnam 31538, Republic of Korea
| | - Sang-Kyu Park
- Department of Medical Biotechnology, College of Medical Sciences, Soonchunhyang University, Asan, Chungnam 31538, Republic of Korea
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12
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Moatt JP, Hambly C, Heap E, Kramer A, Moon F, Speakman JR, Walling CA. Body macronutrient composition is predicted by lipid and not protein content of the diet. Ecol Evol 2017; 7:10056-10065. [PMID: 29238536 PMCID: PMC5723615 DOI: 10.1002/ece3.3529] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/29/2017] [Accepted: 09/28/2017] [Indexed: 11/23/2022] Open
Abstract
Diet is an important determinant of fitness-related traits including growth, reproduction, and survival. Recent work has suggested that variation in protein:lipid ratio and particularly the amount of protein in the diet is a key nutritional parameter. However, the traits that mediate the link between dietary macronutrient ratio and fitness-related traits are less well understood. An obvious candidate is body composition, given its well-known link to health. Here, we investigate the relationship between dietary and body macronutrient composition using a first-generation laboratory population of a freshwater fish, the three-spine stickleback (Gasterosteus aculeatus). Carbohydrate is relatively unimportant in the diet of predatory fish, facilitating the exploration of how dietary protein-to-lipid ratio affects their relative deposition in the body. We find a significant effect of lipid intake, rather than protein, on body protein:lipid ratio. Importantly, this was not a result of absorbing macronutrients in relation to their relative abundance in the diet, as the carcass protein:lipid ratios differed from those of the diets, with ratios usually lower in the body than in the diet. This indicates that individuals can moderate their utilization, or uptake, of ingested macronutrients to reach a target balance within the body. We found no effect of diet on swimming endurance, activity, or testes size. However, there was an effect of weight on testes size, with larger males having larger testes. Our results provide evidence for the adjustment of body protein:lipid ratio away from that of the diet. As dietary lipid intake was the key determinant of body composition, we suggest this occurs via metabolism of excess protein, which conflicts with the predictions of the protein leverage hypothesis. These results could imply that the conversion and excretion of protein is one of the causes of the survival costs associated with high-protein diets.
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Affiliation(s)
- Joshua P. Moatt
- School of Biological SciencesInstitute of Evolutionary BiologyUniversity of EdinburghEdinburghUK
| | - Catherine Hambly
- Institute of Biological and Environmental SciencesUniversity of AberdeenAberdeenUK
| | - Elizabeth Heap
- Edinburgh GenomicsRoslin InstituteUniversity of EdinburghEdinburghUK
| | - Anna Kramer
- School of Biological SciencesInstitute of Evolutionary BiologyUniversity of EdinburghEdinburghUK
| | - Fiona Moon
- School of Biological SciencesInstitute of Evolutionary BiologyUniversity of EdinburghEdinburghUK
| | - John R. Speakman
- Institute of Biological and Environmental SciencesUniversity of AberdeenAberdeenUK
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesGuangzhou ShiChina
| | - Craig A. Walling
- School of Biological SciencesInstitute of Evolutionary BiologyUniversity of EdinburghEdinburghUK
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13
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Mulvey L, Sands WA, Salin K, Carr AE, Selman C. Disentangling the effect of dietary restriction on mitochondrial function using recombinant inbred mice. Mol Cell Endocrinol 2017; 455:41-53. [PMID: 27597651 DOI: 10.1016/j.mce.2016.09.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/22/2016] [Accepted: 09/01/2016] [Indexed: 12/12/2022]
Abstract
Dietary restriction (DR) extends lifespan and healthspan in many species, but precisely how it elicits its beneficial effects is unclear. We investigated the impact of DR on mitochondrial function within liver and skeletal muscle of female ILSXISS mice that exhibit strain-specific variation in lifespan under 40% DR. Strains TejJ89 (lifespan increased under DR), TejJ48 (lifespan unaffected by DR) and TejJ114 (lifespan decreased under DR) were studied following 10 months of 40% DR (13 months of age). Oxygen consumption rates (OCR) within isolated liver mitochondria were unaffected by DR in TejJ89 and TejJ48, but decreased by DR in TejJ114. DR had no effect on hepatic protein levels of PGC-1a, TFAM, and OXPHOS complexes IV. Mitonuclear protein imbalance (nDNA:mtDNA ratio) was unaffected by DR, but HSP90 protein levels were reduced in TejJ114 under DR. Surprisingly hepatic mitochondrial hydrogen peroxide (H2O2) production was elevated by DR in TejJ89, with total superoxide dismutase activity and protein carbonyls increased by DR in both TejJ89 and TejJ114. In skeletal muscle, DR had no effect on mitochondrial OCR, OXPHOS complexes or mitonuclear protein imbalance, but H2O2 production was decreased in TejJ114 and nuclear PGC-1a increased in TejJ89 under DR. Our findings indicate that hepatic mitochondrial dysfunction associated with reduced lifespan of TejJ114 mice under 40% DR, but similar dysfunction was not apparent in skeletal muscle mitochondria. We highlight tissue-specific differences in the mitochondrial response in ILSXISS mice to DR, and underline the importance and challenges of exploiting genetic heterogeneity to help understand mechanisms of ageing.
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Affiliation(s)
- Lorna Mulvey
- Glasgow Ageing Research Network (GARNER), Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - William A Sands
- Glasgow Ageing Research Network (GARNER), Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Karine Salin
- Glasgow Ageing Research Network (GARNER), Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Amanda E Carr
- Glasgow Ageing Research Network (GARNER), Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Colin Selman
- Glasgow Ageing Research Network (GARNER), Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK.
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14
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Sands WA, Page MM, Selman C. Proteostasis and ageing: insights from long-lived mutant mice. J Physiol 2017; 595:6383-6390. [PMID: 28718225 PMCID: PMC5638872 DOI: 10.1113/jp274334] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 07/03/2017] [Indexed: 12/30/2022] Open
Abstract
The global increase in life expectancy is creating significant medical, social and economic challenges to current and future generations. Consequently, there is a need to identify the fundamental mechanisms underlying the ageing process. This knowledge should help develop realistic interventions capable of combatting age‐related disease, and thus improving late‐life health and vitality. While several mechanisms have been proposed as conserved lifespan determinants, the loss of proteostasis – where proteostasis is defined here as the maintenance of the proteome – appears highly relevant to both ageing and disease. Several studies have shown that multiple proteostatic mechanisms, including the endoplasmic reticulum (ER)‐induced unfolded protein response (UPR), the ubiquitin–proteasome system (UPS) and autophagy, appear indispensable for longevity in many long‐lived invertebrate mutants. Similarly, interspecific comparisons suggest that proteostasis may be an important lifespan determinant in vertebrates. Over the last 20 years a number of long‐lived mouse mutants have been described, many of which carry single‐gene mutations within the growth‐hormone, insulin/IGF‐1 or mTOR signalling pathways. However, we still do not know how these mutations act mechanistically to increase lifespan and healthspan, and accordingly whether mechanistic commonality occurs between different mutants. Recent evidence supports the premise that the successful maintenance of the proteome during ageing may be linked to the increased lifespan and healthspan of long‐lived mouse mutants.
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Affiliation(s)
- William A Sands
- Glasgow Ageing Research Network (GARNER), Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Melissa M Page
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Colin Selman
- Glasgow Ageing Research Network (GARNER), Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
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15
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Xie K, Neff F, Markert A, Rozman J, Aguilar-Pimentel JA, Amarie OV, Becker L, Brommage R, Garrett L, Henzel KS, Hölter SM, Janik D, Lehmann I, Moreth K, Pearson BL, Racz I, Rathkolb B, Ryan DP, Schröder S, Treise I, Bekeredjian R, Busch DH, Graw J, Ehninger G, Klingenspor M, Klopstock T, Ollert M, Sandholzer M, Schmidt-Weber C, Weiergräber M, Wolf E, Wurst W, Zimmer A, Gailus-Durner V, Fuchs H, Hrabě de Angelis M, Ehninger D. Every-other-day feeding extends lifespan but fails to delay many symptoms of aging in mice. Nat Commun 2017; 8:155. [PMID: 28761067 PMCID: PMC5537224 DOI: 10.1038/s41467-017-00178-3] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 06/08/2017] [Indexed: 01/28/2023] Open
Abstract
Dietary restriction regimes extend lifespan in various animal models. Here we show that longevity in male C57BL/6J mice subjected to every-other-day feeding is associated with a delayed onset of neoplastic disease that naturally limits lifespan in these animals. We compare more than 200 phenotypes in over 20 tissues in aged animals fed with a lifelong every-other-day feeding or ad libitum access to food diet to determine whether molecular, cellular, physiological and histopathological aging features develop more slowly in every-other-day feeding mice than in controls. We also analyze the effects of every-other-day feeding on young mice on shorter-term every-other-day feeding or ad libitum to account for possible aging-independent restriction effects. Our large-scale analysis reveals overall only limited evidence for a retardation of the aging rate in every-other-day feeding mice. The data indicate that every-other-day feeding-induced longevity is sufficiently explained by delays in life-limiting neoplastic disorders and is not associated with a more general slowing of the aging process in mice. Dietary restriction can extend the life of various model organisms. Here, Xie et al. show that intermittent periods of fasting achieved through every-other-day feeding protect mice against neoplastic disease but do not broadly delay organismal aging in animals.
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Affiliation(s)
- Kan Xie
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Frauke Neff
- Institute of Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Astrid Markert
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Jan Rozman
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), Ingolstädter Landstraße 1, 85764, München-Neuherberg, Germany
| | - Juan Antonio Aguilar-Pimentel
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Division of Environmental Dermatology and Allergy, Technische Universität München/Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Oana Veronica Amarie
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Lore Becker
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Robert Brommage
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Lillian Garrett
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Kristin S Henzel
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Sabine M Hölter
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Dirk Janik
- Institute of Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Isabelle Lehmann
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Kristin Moreth
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Brandon L Pearson
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Ildiko Racz
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Sigmund-Freud-Straße 25, 53105, Bonn, Germany
| | - Birgit Rathkolb
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), Ingolstädter Landstraße 1, 85764, München-Neuherberg, Germany.,Chair of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Feodor Lynen-Straße 25, 81377, Munich, Germany
| | - Devon P Ryan
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Susanne Schröder
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Irina Treise
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute for Medical Microbiology, Immunology, and Hygiene, Trogerstraße 30, Technische Universität München, 81675, Munich, Germany
| | - Raffi Bekeredjian
- Department of Medicine III, Division of Cardiology, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
| | - Dirk H Busch
- Institute for Medical Microbiology, Immunology, and Hygiene, Trogerstraße 30, Technische Universität München, 81675, Munich, Germany
| | - Jochen Graw
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Gerhard Ehninger
- Department of Internal Medicine I, University Hospital Carl Gustav Carus, Technical University Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Martin Klingenspor
- Molecular Nutritional Medicine, Else Kröner-Fresenius Center, Technische Universität München, Gregor-Mendel-Straße 2, 85350, Freising-Weihenstephan, Germany
| | - Thomas Klopstock
- Friedrich-Baur-Institut, Department of Neurology, Ludwig-Maximilians-Universität München, Ziemssenstraße 1a, 80336, Munich, Germany.,German Center for Vertigo and Balance Disorders, University Hospital Munich, Campus Grosshadern, Marchioninistraße 15, 81377, Munich, Germany.,DZNE, German Center for Neurodegenerative Diseases, Schillerstraße 44, 80336, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), 80336, Munich, Germany
| | - Markus Ollert
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.,Department of Dermatology and Allergy Center, Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
| | - Michael Sandholzer
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Comprehensive Pneumology Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Carsten Schmidt-Weber
- Center of Allergy & Environment (ZAUM), Technische Universität München and Helmholtz Zentrum München, Biedersteiner Str. 29, 80802, Munich, Germany.,Member of the German Center for Lung Research (DZL), Aulweg 130, 35392, Gießen, Germany
| | - Marco Weiergräber
- Research Group Experimental Neuropsychopharmacology, Federal Institute for Drugs and Medical Devices, Kurt-Georg-Kiesinger-Allee 3, 53175, Bonn, Germany
| | - Eckhard Wolf
- Chair of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Feodor Lynen-Straße 25, 81377, Munich, Germany
| | - Wolfgang Wurst
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,DZNE, German Center for Neurodegenerative Diseases, Schillerstraße 44, 80336, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), 80336, Munich, Germany.,Chair of Developmental Genetics, Technische Universität München, c/o Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Andreas Zimmer
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Sigmund-Freud-Straße 25, 53105, Bonn, Germany
| | - Valerie Gailus-Durner
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Helmut Fuchs
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Martin Hrabě de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), Ingolstädter Landstraße 1, 85764, München-Neuherberg, Germany.,Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85350, Freising-Weihenstephan, Germany
| | - Dan Ehninger
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany.
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16
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Balasubramanian P, Howell PR, Anderson RM. Aging and Caloric Restriction Research: A Biological Perspective With Translational Potential. EBioMedicine 2017; 21:37-44. [PMID: 28648985 PMCID: PMC5514430 DOI: 10.1016/j.ebiom.2017.06.015] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 06/14/2017] [Accepted: 06/16/2017] [Indexed: 12/14/2022] Open
Abstract
Aging as a research pursuit is fairly new compared with traditional lines of medical research. A growing field of investigators is focused on understanding how changes in tissue biology, physiology, and systemic homeostasis, conspire to create increased vulnerability to disease as a function of age. Aging research as a discipline is necessarily broad; in part because aging itself is multi-faceted and in part because different model systems are employed to define the underlying biology. In this review we outline aspects of aging research that are likely to uncover the pivotal events leading to age-related disease vulnerability. We focus on studies of human aging and discuss the value of research on caloric restriction, an intervention with proven efficacy in delaying aging. We propose that studies such as these will deliver target factors and processes that create vulnerability in human aging, an advance that would potentially be transformative in clinical care.
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Affiliation(s)
- Priya Balasubramanian
- Department of Medicine, Division of Geriatrics and Gerontology, School of Medicine and Public Health, University of Wisconsin Madison, WI 53792, United States
| | - Porsha R Howell
- Department of Medicine, Division of Geriatrics and Gerontology, School of Medicine and Public Health, University of Wisconsin Madison, WI 53792, United States
| | - Rozalyn M Anderson
- Department of Medicine, Division of Geriatrics and Gerontology, School of Medicine and Public Health, University of Wisconsin Madison, WI 53792, United States; Geriatric Research, Education, and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI 53705, United States.
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17
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Pan Y, Lü P, Wang Q, Zhu F, Li C, He Y, Chen K. Comparative transcriptomic analysis of Bombyx mori fat body tissue following dietary restriction. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2017; 95:e21388. [PMID: 28449399 DOI: 10.1002/arch.21388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Dietary restriction (DR) refers to a reduction in food intake to induce undernutrition but not malnutrition, which extends the lifespan of multiple species. Although there are invertebrate aging models, such as the Caenorhabditis elegans and Drosophila melanogaster, aging studies in Lepidoptera are few in number and the underlying life-extending molecular mechanisms are not clear. Research on a broader range of animals is necessary to support generalizations on mechanisms of aging and rates of aging. The aim of this study was to further investigate genes and pathways associated with DR in Bombyx mori. Here, we used mRNA deep sequencing (RNA-seq) to further investigate genes and pathways associated with DR. The transcriptome profiles showed that most of the differentially expressed genes were upregulated following DR, and genes involved in amino acid and protein metabolism, RNA metabolism and translation, energy metabolism, nitrogen metabolism, and juvenile hormone pathway-related proteins were particularly affected. DR also affects the metabolism of uric acid and urea, which accumulated in silkworm following DR. We speculate that this may not be due to activation of uric acid biosynthesis, but rather by downregulating the degradation of uric acid and urea. These results may help us to understand the mechanisms by which DR prolong lifespan in insects and other animals.
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Affiliation(s)
- Ye Pan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
- The Laboratory Animal Research Center, Jiangsu University, Zhenjiang, China
| | - Peng Lü
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Qinyun Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Feifei Zhu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Chengjun Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yuanqing He
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- The Laboratory Animal Research Center, Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
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18
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Figueira I, Fernandes A, Mladenovic Djordjevic A, Lopez-Contreras A, Henriques CM, Selman C, Ferreiro E, Gonos ES, Trejo JL, Misra J, Rasmussen LJ, Xapelli S, Ellam T, Bellantuono I. Interventions for age-related diseases: Shifting the paradigm. Mech Ageing Dev 2016; 160:69-92. [DOI: 10.1016/j.mad.2016.09.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 09/18/2016] [Accepted: 09/28/2016] [Indexed: 12/14/2022]
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19
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Vaiserman AM, Lushchak OV, Koliada AK. Anti-aging pharmacology: Promises and pitfalls. Ageing Res Rev 2016; 31:9-35. [PMID: 27524412 DOI: 10.1016/j.arr.2016.08.004] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 08/06/2016] [Accepted: 08/09/2016] [Indexed: 12/12/2022]
Abstract
Life expectancy has grown dramatically in modern times. This increase, however, is not accompanied by the same increase in healthspan. Efforts to extend healthspan through pharmacological agents targeting aging-related pathological changes are now in the spotlight of geroscience, the main idea of which is that delaying of aging is far more effective than preventing the particular chronic disorders. Currently, anti-aging pharmacology is a rapidly developing discipline. It is a preventive field of health care, as opposed to conventional medicine which focuses on treating symptoms rather than root causes of illness. A number of pharmacological agents targeting basic aging pathways (i.e., calorie restriction mimetics, autophagy inducers, senolytics etc.) are now under investigation. This review summarizes the literature related to advances, perspectives and challenges in the field of anti-aging pharmacology.
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Affiliation(s)
| | - Oleh V Lushchak
- Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
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Moatt JP, Nakagawa S, Lagisz M, Walling CA. The effect of dietary restriction on reproduction: a meta-analytic perspective. BMC Evol Biol 2016; 16:199. [PMID: 27717308 PMCID: PMC5054627 DOI: 10.1186/s12862-016-0768-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 09/27/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Dietary restriction (DR), a reduction in the amount of food or particular nutrients eaten, is the most consistent environmental manipulation to extend lifespan and protect against age related diseases. Current evolutionary theory explains this effect as a shift in the resolution of the trade-off between lifespan and reproduction. However, recent studies have questioned the role of reproduction in mediating the effect of DR on longevity and no study has quantitatively investigated the effect of DR on reproduction across species. RESULTS Here we report a comprehensive comparative meta-analysis of the effect of DR on reproduction. In general, DR reduced reproduction across taxa, but several factors moderated this effect. The effect of DR on reproduction was greater in well-studied model species (yeast, nematode worms, fruit flies and rodents) than non-model species. This mirrors recent results for longevity and, for reproduction, seems to result from a faster rate of decline with decreasing resources in model species. Our results also suggested that not all reproductive traits are affected equally by DR. High and moderate cost reproductive traits suffered a significant reduction with DR, but low cost traits, such as ejaculate production, did not. Although the effect of DR on reproduction was stronger in females than males, this sex difference reduced to near zero when accounting for other co-factors such as the costliness of the reproductive trait. Thus, sex differences in the effect of DR on longevity may be due to a failure to expose males to as complete a range of the costs of reproduction as females. CONCLUSIONS We suggest that to better understand the generality of the effect of DR, future studies should attempt to address the cause of the apparent model species bias and ensure that individuals are exposed to as many of the costs of reproduction as possible. Furthermore, our meta-analytic approach reveals a general shortage of DR studies that record reproduction, particularly in males, as well as a lack of direct side-by-side comparisons of the effect of DR on males and females.
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Affiliation(s)
- Joshua P Moatt
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Ashworth Labs, Kings Buildings, Edinburgh, EH9 3JT, UK.
| | - Shinichi Nakagawa
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australia.,Diabetes and Metabolism Division, Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
| | - Malgorzata Lagisz
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Craig A Walling
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Ashworth Labs, Kings Buildings, Edinburgh, EH9 3JT, UK
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Ntsapi C, Loos B. Caloric restriction and the precision-control of autophagy: A strategy for delaying neurodegenerative disease progression. Exp Gerontol 2016; 83:97-111. [DOI: 10.1016/j.exger.2016.07.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 07/18/2016] [Accepted: 07/25/2016] [Indexed: 01/07/2023]
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de Oliveira MR, Nabavi SF, Manayi A, Daglia M, Hajheydari Z, Nabavi SM. Resveratrol and the mitochondria: From triggering the intrinsic apoptotic pathway to inducing mitochondrial biogenesis, a mechanistic view. Biochim Biophys Acta Gen Subj 2016; 1860:727-45. [PMID: 26802309 DOI: 10.1016/j.bbagen.2016.01.017] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/19/2015] [Accepted: 01/06/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Mitochondria, the power plants of the cell, are known as a cross-road of different cellular signaling pathways. These cytoplasmic double-membraned organelles play a pivotal role in energy metabolism and regulate calcium flux in the cells. It is well known that mitochondrial dysfunction is associated with different diseases such as neurodegeneration and cancer. A growing body of literature has shown that polyphenolic compounds exert direct effects on mitochondrial ultra-structure and function. Resveratrol is known as one of the most common bioactive constituents of red wine, which improves mitochondrial functions under in vitro and in vivo conditions. SCOPE OF REVIEW This paper aims to review the molecular pathways underlying the beneficial effects of resveratrol on mitochondrial structure and functions. In addition, we discuss the chemistry and main sources of resveratrol. MAJOR CONCLUSIONS Resveratrol represents the promising effects on mitochondria in different experimental models. However, there are several reports on the detrimental effects elicited by resveratrol on mitochondria. GENERAL SIGNIFICANCE An understanding of the chemistry and source of resveratrol, its bioavailability and the promising effects on mitochondria brings a new hope to therapy of mitochondrial dysfunction-related diseases.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Department of Chemistry, ICET, Federal University of Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, CEP 78060-900 Cuiabá, MT, Brazil.
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Azadeh Manayi
- Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Maria Daglia
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Italy
| | - Zohreh Hajheydari
- Department of Dermatology, Boo Ali Sina (Avicenna) Hospital, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Abstract
AbstractEnergy restriction (ER; also known as caloric restriction) is the only nutritional intervention that has repeatedly been shown to increase lifespan in model organisms and may delay ageing in humans. In the present review we discuss current scientific literature on ER and its molecular, metabolic and hormonal effects. Moreover, criteria for the classification of substances that might induce positive ER-like changes without having to reduce energy intake are summarised. Additionally, the putative ER mimetics (ERM) 2-deoxy-d-glucose, metformin, rapamycin, resveratrol, spermidine and lipoic acid and their suggested molecular targets are discussed. While there are reports on these ERM candidates that describe lifespan extension in model organisms, data on longevity-inducing effects in higher organisms such as mice remain controversial or are missing. Furthermore, some of these candidates produce detrimental side effects such as immunosuppression or lactic acidosis, or have not been tested for safety in long-term studies. Up to now, there are no known ERM that could be recommended without limitations for use in humans.
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Sharples AP, Hughes DC, Deane CS, Saini A, Selman C, Stewart CE. Longevity and skeletal muscle mass: the role of IGF signalling, the sirtuins, dietary restriction and protein intake. Aging Cell 2015; 14:511-23. [PMID: 25866088 PMCID: PMC4531066 DOI: 10.1111/acel.12342] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2015] [Indexed: 12/11/2022] Open
Abstract
Advancing age is associated with a progressive loss of skeletal muscle (SkM) mass and function. Given the worldwide aging demographics, this is a major contributor to morbidity, escalating socio-economic costs and ultimately mortality. Previously, it has been established that a decrease in regenerative capacity in addition to SkM loss with age coincides with suppression of insulin/insulin-like growth factor signalling pathways. However, genetic or pharmacological modulations of these highly conserved pathways have been observed to significantly enhance life and healthspan in various species, including mammals. This therefore provides a controversial paradigm in which reduced regenerative capacity of skeletal muscle tissue with age potentially promotes longevity of the organism. This paradox will be assessed and considered in the light of the following: (i) the genetic knockout, overexpression and pharmacological models that induce lifespan extension (e.g. IRS-1/s6K KO, mTOR inhibition) versus the important role of these signalling pathways in SkM growth and adaptation; (ii) the role of the sirtuins (SIRTs) in longevity versus their emerging role in SkM regeneration and survival under catabolic stress; (iii) the role of dietary restriction and its impact on longevity versus skeletal muscle mass regulation; (iv) the crosstalk between cellular energy metabolism (AMPK/TSC2/SIRT1) and survival (FOXO) versus growth and repair of SkM (e.g. AMPK vs. mTOR); and (v) the impact of protein feeding in combination with dietary restriction will be discussed as a potential intervention to maintain SkM mass while increasing longevity and enabling healthy aging.
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Affiliation(s)
- Adam P. Sharples
- Stem Cells, Ageing & Molecular Physiology Unit; Research Institute for Sport and Exercise Sciences (RISES); Exercise Metabolism and Adaptation Research Group (EMARG); Liverpool John Moores University; Tom Reilly Building Liverpool L3 3AF UK
| | - David C. Hughes
- Stem Cells, Ageing & Molecular Physiology Unit; Research Institute for Sport and Exercise Sciences (RISES); Exercise Metabolism and Adaptation Research Group (EMARG); Liverpool John Moores University; Tom Reilly Building Liverpool L3 3AF UK
- Department of Neurobiology, Physiology and Behavior; University of California; Davis California CA 95616 USA
| | - Colleen S. Deane
- MRC/ARUK Centre of Excellence for Musculoskeletal Ageing Research; School of Medicine; University of Nottingham; Royal Derby Hospital; Derby DE22 3DT UK
- School of Health and Social Care; Bournemouth University; Bournemouth BH12 5BB UK
| | - Amarjit Saini
- Department of Physiology and Pharmacology; Karolinska Institutet; Stockholm 171 77 Sweden
| | - Colin Selman
- Glasgow Ageing Research Network (GARNER); Institute of Biodiversity, Animal Health and Comparative Medicine; College of Medicine, Veterinary and Life Sciences; University of Glasgow; Glasgow G12 8QQ UK
| | - Claire E. Stewart
- Stem Cells, Ageing & Molecular Physiology Unit; Research Institute for Sport and Exercise Sciences (RISES); Exercise Metabolism and Adaptation Research Group (EMARG); Liverpool John Moores University; Tom Reilly Building Liverpool L3 3AF UK
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Castillo-Quan JI, Kinghorn KJ, Bjedov I. Genetics and pharmacology of longevity: the road to therapeutics for healthy aging. ADVANCES IN GENETICS 2015; 90:1-101. [PMID: 26296933 DOI: 10.1016/bs.adgen.2015.06.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Aging can be defined as the progressive decline in tissue and organismal function and the ability to respond to stress that occurs in association with homeostatic failure and the accumulation of molecular damage. Aging is the biggest risk factor for human disease and results in a wide range of aging pathologies. Although we do not completely understand the underlying molecular basis that drives the aging process, we have gained exceptional insights into the plasticity of life span and healthspan from the use of model organisms such as the worm Caenorhabditis elegans and the fruit fly Drosophila melanogaster. Single-gene mutations in key cellular pathways that regulate environmental sensing, and the response to stress, have been identified that prolong life span across evolution from yeast to mammals. These genetic manipulations also correlate with a delay in the onset of tissue and organismal dysfunction. While the molecular genetics of aging will remain a prosperous and attractive area of research in biogerontology, we are moving towards an era defined by the search for therapeutic drugs that promote healthy aging. Translational biogerontology will require incorporation of both therapeutic and pharmacological concepts. The use of model organisms will remain central to the quest for drug discovery, but as we uncover molecular processes regulated by repurposed drugs and polypharmacy, studies of pharmacodynamics and pharmacokinetics, drug-drug interactions, drug toxicity, and therapeutic index will slowly become more prevalent in aging research. As we move from genetics to pharmacology and therapeutics, studies will not only require demonstration of life span extension and an underlying molecular mechanism, but also the translational relevance for human health and disease prevention.
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Affiliation(s)
- Jorge Iván Castillo-Quan
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, UK; Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Kerri J Kinghorn
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, UK; Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Ivana Bjedov
- Cancer Institute, University College London, London, UK
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rBTI extends Caenorhabditis elegans lifespan by mimicking calorie restriction. Exp Gerontol 2015; 67:62-71. [DOI: 10.1016/j.exger.2015.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 05/01/2015] [Accepted: 05/05/2015] [Indexed: 01/19/2023]
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Jové M, Naudí A, Ramírez‐Núñez O, Portero‐Otín M, Selman C, Withers DJ, Pamplona R. Caloric restriction reveals a metabolomic and lipidomic signature in liver of male mice. Aging Cell 2014; 13:828-37. [PMID: 25052291 PMCID: PMC4331741 DOI: 10.1111/acel.12241] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2014] [Indexed: 12/31/2022] Open
Abstract
Lipid composition, particularly membrane unsaturation, has been proposed as being a lifespan determinant, but it is currently unknown whether caloric restriction (CR), an accepted life-extending intervention, affects cellular lipid profiles. In this study, we employ a liquid chromatography quadrupole time-of-flight-based methodology to demonstrate that CR in the liver of male C57BL/6 mice: (i) induces marked changes in the cellular lipidome, (ii) specifically reduces levels of a phospholipid peroxidation product, 1-palmitoyl-2-glutaryl-sn-glycero-3-phosphatidylcholine, (iii) alters cellular phosphoethanolamine and triglyceride distributional profiles, (iv) affects mitochondrial electron transport chain complexes, increasing complex II and decreasing complex III and (v) is associated with specific changes in liver metabolic pathways. These data demonstrate that CR induces a specific lipidome and metabolome reprogramming event in mouse liver which is associated with lower protein oxidative damage, as assessed by mass spectrometry-based measurements. Such changes may be critical to the increased lifespan and healthspan observed in C57BL/6 mice following CR.
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Affiliation(s)
- Mariona Jové
- Department of Experimental Medicine University of Lleida‐Biomedical Research Institute of Lleida Lleida 25198Spain
| | - Alba Naudí
- Department of Experimental Medicine University of Lleida‐Biomedical Research Institute of Lleida Lleida 25198Spain
| | - Omar Ramírez‐Núñez
- Department of Experimental Medicine University of Lleida‐Biomedical Research Institute of Lleida Lleida 25198Spain
| | - Manuel Portero‐Otín
- Department of Experimental Medicine University of Lleida‐Biomedical Research Institute of Lleida Lleida 25198Spain
| | - Colin Selman
- Institute of Biodiversity, Animal Health and Comparative Medicine University of Glasgow Graham Kerr Building Glasgow G12 8QQUK
| | - Dominic J. Withers
- Metabolic Signaling Group Medical Research Council Clinical Sciences Centre Imperial College London London W12 0NNUK
| | - Reinald Pamplona
- Department of Experimental Medicine University of Lleida‐Biomedical Research Institute of Lleida Lleida 25198Spain
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Mulvey L, Sinclair A, Selman C. Lifespan modulation in mice and the confounding effects of genetic background. J Genet Genomics 2014; 41:497-503. [PMID: 25269675 PMCID: PMC4257991 DOI: 10.1016/j.jgg.2014.06.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 06/05/2014] [Accepted: 06/06/2014] [Indexed: 02/04/2023]
Abstract
We are currently in the midst of a revolution in ageing research, with several dietary, genetic and pharmacological interventions now known to modulate ageing in model organisms. Excitingly, these interventions also appear to have beneficial effects on late-life health. For example, dietary restriction (DR) has been shown to slow the incidence of age-associated cardiovascular disease, metabolic disease, cancer and brain ageing in non-human primates and has been shown to improve a range of health indices in humans. While the idea that DR's ability to extend lifespan is often thought of as being universal, studies in a range of organisms, including yeast, mice and monkeys, suggest that this may not actually be the case. The precise reasons underlying these differential effects of DR on lifespan are currently unclear, but genetic background may be an important factor in how an individual responds to DR. Similarly, recent findings also suggest that the responsiveness of mice to specific genetic or pharmacological interventions that modulate ageing may again be influenced by genetic background. Consequently, while there is a clear driver to develop interventions to improve late-life health and vitality, understanding precisely how these act in response to particular genotypes is critical if we are to translate these findings to humans. We will consider of the role of genetic background in the efficacy of various lifespan interventions and discuss potential routes of utilising genetic heterogeneity to further understand how particular interventions modulate lifespan and healthspan.
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Affiliation(s)
- Lorna Mulvey
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medicine, Veterinary and Life Sciences, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK
| | - Amy Sinclair
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medicine, Veterinary and Life Sciences, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK
| | - Colin Selman
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medicine, Veterinary and Life Sciences, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
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