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McGee KC, Sullivan J, Hazeldine J, Schmunk LJ, Martin-Herranz DE, Jackson T, Lord JM. A combination nutritional supplement reduces DNA methylation age only in older adults with a raised epigenetic age. GeroScience 2024; 46:4333-4347. [PMID: 38528176 PMCID: PMC11336001 DOI: 10.1007/s11357-024-01138-8] [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: 01/05/2024] [Accepted: 03/13/2024] [Indexed: 03/27/2024] Open
Abstract
An increase in systemic inflammation (inflammaging) is one of the hallmarks of aging. Epigenetic (DNA methylation) clocks can quantify the degree of biological aging and this can be reversed by lifestyle and pharmacological intervention. We aimed to investigate whether a multi-component nutritional supplement could reduce systemic inflammation and epigenetic age in healthy older adults.We recruited 80 healthy older participants (mean age ± SD: 71.85 ± 6.23; males = 31, females = 49). Blood and saliva were obtained pre and post a 12-week course of a multi-component supplement, containing: Vitamin B3, Vitamin C, Vitamin D, Omega 3 fish oils, Resveratrol, Olive fruit phenols and Astaxanthin. Plasma GDF-15 and C-reactive protein (CRP) concentrations were quantified as markers of biological aging and inflammation respectively. DNA methylation was assessed in whole blood and saliva and used to derive epigenetic age using various clock algorithms.No difference between the epigenetic and chronological ages of participants was observed pre- and post-treatment by the blood-based Horvath or Hannum clocks, or the saliva-based InflammAge clock. However, in those with epigenetic age acceleration of ≥ 2 years at baseline, a significant reduction in epigenetic age (p = 0.015) and epigenetic age acceleration (p = 0.0058) was observed post-treatment using the saliva-based InflammAge clock. No differences were observed pre- and post-treatment in plasma GDF-15 and CRP, though participants with CRP indicative of an elevated cardiovascular disease risk (hsCRP ≥ 3µg/ml), had a reduction in CRP post-supplementation (p = 0.0195).Our data suggest a possible benefit of combined nutritional supplementation in individuals with an accelerated epigenetic age and inflammaging.
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Affiliation(s)
- Kirsty C McGee
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Jack Sullivan
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Jon Hazeldine
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | | | | | - Thomas Jackson
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedcial Research Centre, University Hopsital Birmingham and University of Birmingham, Birmingham, UK
| | - Janet M Lord
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
- NIHR Birmingham Biomedcial Research Centre, University Hopsital Birmingham and University of Birmingham, Birmingham, UK.
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2
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Dos Santos E, Cochemé HM. Pharmacology of Aging: Drosophila as a Tool to Validate Drug Targets for Healthy Lifespan. AGING BIOLOGY 2024; 2:20240034. [PMID: 39346601 PMCID: PMC7616647 DOI: 10.59368/agingbio.20240034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Abstract
Finding effective therapies to manage age-related conditions is an emerging public health challenge. Although disease-targeted treatments are important, a preventive approach focused on aging can be more efficient. Pharmacological targeting of aging-related processes can extend lifespan and improve health in animal models. However, drug development and translation are particularly challenging in geroscience. Preclinical studies have survival as a major endpoint for drug screening, which requires years of research in mammalian models. Shorter-lived invertebrates can be exploited to accelerate this process. In particular, the fruit fly Drosophila melanogaster allows the validation of new drug targets using precise genetic tools and proof-of-concept experiments on drugs impacting conserved aging processes. Screening for clinically approved drugs that act on aging-related targets may further accelerate translation and create new tools for aging research. To date, 31 drugs used in clinical practice have been shown to extend the lifespan of flies. Here, we describe recent advances in the pharmacology of aging, focusing on Drosophila as a tool to repurpose these drugs and study age-related processes.
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Affiliation(s)
- Eliano Dos Santos
- MRC Laboratory of Medical Sciences (LMS), London, UK
- Institute of Clinical Sciences, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Helena M Cochemé
- MRC Laboratory of Medical Sciences (LMS), London, UK
- Institute of Clinical Sciences, Imperial College London, Hammersmith Hospital Campus, London, UK
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3
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Verlinden SF. The genetic advantage of healthy centenarians: unraveling the central role of NLRP3 in exceptional healthspan. FRONTIERS IN AGING 2024; 5:1452453. [PMID: 39301197 PMCID: PMC11410711 DOI: 10.3389/fragi.2024.1452453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 08/19/2024] [Indexed: 09/22/2024]
Abstract
Despite extensive research into extending human healthspan (HS) and compressing morbidity, the mechanisms underlying aging remain elusive. However, a better understanding of the genetic advantages responsible for the exceptional HS of healthy centenarians (HC), who live in good physical and mental health for one hundred or more years, could lead to innovative health-extending strategies. This review explores the role of NLRP3, a critical component of innate immunity that significantly impacts aging. It is activated by pathogen-associated signals and self-derived signals that increase with age, leading to low-grade inflammation implicated in age-related diseases. Furthermore, NLRP3 functions upstream in several molecular aging pathways, regulates cellular senescence, and may underlie the robust health observed in HC. By targeting NLRP3, mice exhibit a phenotype akin to that of HC, the HS of monkeys is extended, and aging symptoms are reversed in humans. Thus, targeting NLRP3 could offer a promising approach to extend HS. Additionally, a paradigm shift is proposed. Given that the HS of the broader population is 30 years shorter than that of HC, it is postulated that they suffer from a form of accelerated aging. The term 'auto-aging' is suggested to describe accelerated aging driven by NLRP3.
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4
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Jo HG, Baek CY, Hwang Y, Baek E, Park C, Song HS, Lee D. Investigating the Anti-Inflammatory, Analgesic, and Chondroprotective Effects of Gynostemma pentaphyllum (Thunb.) Makino in Osteoarthritis: An In Vitro and In Vivo Study. Int J Mol Sci 2024; 25:9594. [PMID: 39273553 PMCID: PMC11395165 DOI: 10.3390/ijms25179594] [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: 07/19/2024] [Revised: 08/22/2024] [Accepted: 08/30/2024] [Indexed: 09/15/2024] Open
Abstract
Osteoarthritis (OA) is an age-related disease characterized by inflammation, pain, articular cartilage damage, synovitis, and irreversible disability. Gynostemma pentaphyllum (Thunb.) Makino (GP), a herbal medicine traditionally used in East Asia for its anti-inflammatory properties, was investigated for its potential to modulate OA pathology and symptoms. This study evaluated GP's efficacy in inhibiting pain, functional decline, and cartilage destruction in monosodium iodoacetate-induced OA and acetic acid-induced writhing models. Additionally, the effects of GP on OA-related inflammatory targets were assessed via mRNA and protein expression in rat knee cartilage and lipopolysaccharide-induced RAW 264.7 cells. The GP group demonstrated significant pain relief, functional improvement, and cartilage protection. Notably, GP inhibited key inflammatory mediators, including interleukin (IL)-1β, IL-6, matrix metalloproteinases (MMP)-3 and MMP-13, cyclooxygenase-2, and prostaglandin E receptor 2, surpassing the effects of active controls. These findings suggest that GP is a promising candidate for disease-modifying OA drugs and warrants further comprehensive studies.
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Affiliation(s)
- Hee-Geun Jo
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea
- Naturalis Inc., 6 Daewangpangyo-ro, Bundang-gu, Seongnam-si 13549, Republic of Korea
| | - Chae Yun Baek
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea
| | - Yeseul Hwang
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea
| | - Eunhye Baek
- RexSoft Inc., 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Chanyoon Park
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea
| | - Ho Sueb Song
- Department of Acupuncture & Moxibustion Medicine, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea
| | - Donghun Lee
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea
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5
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Chen S, Cao Z, Nandi A, Counts N, Jiao L, Prettner K, Kuhn M, Seligman B, Tortorice D, Vigo D, Wang C, Bloom DE. The global macroeconomic burden of Alzheimer's disease and other dementias: estimates and projections for 152 countries or territories. Lancet Glob Health 2024; 12:e1534-e1543. [PMID: 39151988 DOI: 10.1016/s2214-109x(24)00264-x] [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: 11/12/2023] [Revised: 04/15/2024] [Accepted: 06/11/2024] [Indexed: 08/19/2024]
Abstract
BACKGROUND Alzheimer's disease and other dementias (ADODs) severely threaten the wellbeing of older people, their families, and communities, especially with projected exponential growth. Understanding the macroeconomic implications of ADODs for policy making is essential but under-researched. METHODS We used a health-augmented macroeconomic model to calculate the macroeconomic burden of ADODs for 152 countries or territories, accounting for: the effect on labour supply of reduced working hours of informal caregivers; the effect on labour supply of ADODs-related mortality and morbidity; age-sex-specific differences in education, work experience, labour market participations, and informal caregivers; and treatment and formal care costs diverting from savings and investments. FINDINGS ADODs will cost the world economy 14 513 billion international dollars (INT$, measured in the base year 2020; 95% uncertainty interval [UI] 12 106-17 778) from 2020 to 2050, equivalent to 0·421% (95% UI 0·351-0·515) of annual global GDP. Japan incurs the largest annual GDP loss at 1·463% (1·225-1·790). China (INT$2961 billion [2507-3564]), the USA (INT$2331 billion [1989-2829]), and Japan (INT$1758 billion [1471-2150]) face the largest absolute economic burdens. The economic burden of informal care ranges from 60·97% in high-income countries to 85·45% in lower-middle-income countries, and treatment and formal care costs range from 10·50% in lower-middle-income countries to 30·80% in high-income countries. INTERPRETATION The macroeconomic burden of ADODs is substantial and unequally distributed across countries and regions. Global efforts to reduce the burden, especially with regard to informal care, are urgently needed. FUNDING National Institute on Aging, National Institutes of Health; Chinese Academy of Engineering; Chinese Academy of Medical Sciences; Bill & Melinda Gates Foundation; Davos Alzheimer's Collaborative through Data for Decisions.
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Affiliation(s)
- Simiao Chen
- Heidelberg Institute of Global Health, Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany; Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Zhong Cao
- Department of Automation, Tsinghua University, Beijing, China
| | - Arindam Nandi
- The Population Council, New York, NY, USA; One Health Trust, Washington, DC, USA
| | - Nathaniel Counts
- Mental Health America, New York, NY, USA; Albert Einstein Medical College, New York, NY, USA
| | - Lirui Jiao
- Columbia Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Klaus Prettner
- Department of Economics, Vienna University of Economics and Business, Vienna, Austria
| | - Michael Kuhn
- Wittgenstein Centre, Vienna Institute of Demography, Vienna, Austria; International Institute for Applied Systems Analysis, Laxenburg, Austria
| | - Benjamin Seligman
- Departments of Medicine and of Epidemiology and Biostatistics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | | | - Daniel Vigo
- Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada
| | - Chen Wang
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China; National Clinical Research Center for Respiratory Diseases, Beijing, China; Chinese Academy of Engineering, Beijing, China.
| | - David E Bloom
- Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
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6
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Al-Naggar IM, Campellone KG, Espinoza SE, Justice JN, Orr ME, Kozikowski C, van der Willik O, Thatcher C, Schmader K, Pignolo RJ, Newman JC, Kuchel GA. Bringing Geroscience into the Mainstream: From Education to Clinical Practice, What Will It Take? J Gerontol A Biol Sci Med Sci 2024; 79:glae020. [PMID: 39126344 PMCID: PMC11316222 DOI: 10.1093/gerona/glae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Indexed: 08/12/2024] Open
Affiliation(s)
- Iman M Al-Naggar
- Center on Aging, UConn Health, Farmington, Connecticut, USA
- Departments of Cell Biology and Surgery, UConn Health, Farmington, Connecticut, USA
| | - Kenneth G Campellone
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
| | - Sara E Espinoza
- Department of Medicine, Center for Geroscience, Diabetes and Aging Center, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - Jamie N Justice
- Department of Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
- XPRIZE Foundation, Culver City, California, USA
| | - Miranda E Orr
- Department of Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Chester Kozikowski
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | - Kenneth Schmader
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
| | - Robert J Pignolo
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - John C Newman
- Department of Medicine, University of California in San Francisco, San Francisco, California, USA
- Buck Institute for Research on Aging, Novato, California, USA
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7
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Slade L, Etheridge T, Szewczyk NJ. Consolidating multiple evolutionary theories of ageing suggests a need for new approaches to study genetic contributions to ageing decline. Ageing Res Rev 2024; 100:102456. [PMID: 39153601 DOI: 10.1016/j.arr.2024.102456] [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: 03/10/2024] [Revised: 08/05/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Understanding mechanisms of ageing remains a complex challenge for biogerontologists, but recent adaptations of evolutionary ageing theories offer a compelling lens in which to view both age-related molecular and physiological deterioration. Ageing is commonly associated with progressive declines in biochemical and molecular processes resulting from damage accumulation, yet the role of continued developmental gene activation is less appreciated. Natural selection pressures are at their highest in youthful periods to modify gene expression towards maximising reproductive capacity. After sexual maturation, selective pressure diminishes, subjecting individuals to maladaptive pleiotropic gene functions that were once beneficial for developmental growth but become pathogenic later in life. Due to this selective 'shadowing' in ageing, mechanisms to counter such hyper/hypofunctional genes are unlikely to evolve. Interventions aimed at targeting gene hyper/hypofunction during ageing might, therefore, represent an attractive therapeutic strategy. The nematode Caenorhabditis elegans offers a strong model for post-reproductive mechanistic and therapeutic investigations, yet studies examining the mechanisms of, and countermeasures against, ageing decline largely intervene from larval stages onwards. Importantly, however, lifespan extending conditions frequently impair early-life fitness and fail to correspondingly increase healthspan. Here, we consolidate multiple evolutionary theories of ageing and discuss data supporting hyper/hypofunctional changes at a global molecular and functional level in C. elegans, and how classical lifespan-extension mutations alter these dynamics. The relevance of such mutant models for exploring mechanisms of ageing are discussed, highlighting that post-reproductive gene optimisation represents a more translatable approach for C. elegans research that is not constrained by evolutionary trade-offs. Where some genetic mutations in C. elegans that promote late-life health map accordingly with healthy ageing in humans, other widely used genetic mutations that extend worm lifespan are associated with life-limiting pathologies in people. Lifespan has also become the gold standard for quantifying 'ageing', but we argue that gerospan compression (i.e., 'healthier' ageing) is an appropriate goal for anti-ageing research, the mechanisms of which appear distinct from those regulating lifespan alone. There is, therefore, an evident need to re-evaluate experimental approaches to study the role of hyper/hypofunctional genes in ageing in C. elegans.
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Affiliation(s)
- Luke Slade
- University of Exeter Medical School, Exeter, UK.
| | - Timothy Etheridge
- Faculty of Health and Life Sciences, University of Exeter, Exeter, UK
| | - Nathaniel J Szewczyk
- Ohio Musculoskeletal and Neurological Institute, Heritage College of Osteopathic Medicine, Athens, OH 45701, United States.
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8
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Singh SK, Parihar S, Jain S, Ho JAA, Vankayala R. Light-responsive functional nanomaterials as pioneering therapeutics: a paradigm shift to combat age-related disorders. J Mater Chem B 2024; 12:8212-8234. [PMID: 39058026 DOI: 10.1039/d4tb00578c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
Aging, marked by dysregulated cellular systems, gives rise to a spectrum of age-related disorders, including neurodegeneration, atherosclerosis, immunosenescence, and musculoskeletal issues. These conditions contribute significantly to the global disease burden, posing challenges to health span and economic resources. Current therapeutic approaches, although diverse in mechanism, often fall short in targeting the underlying cellular pathologies. They fail to address the issues compounded by altered pharmacokinetics in the elderly. Nanotechnology emerges as a transformative solution, offering tissue-specific targeted therapies through nanoparticles. Functional nanomaterials (FNMs) respond to internal or external stimuli, with light-responsive nanomaterials gaining prominence. Harnessing the benefits of deep tissue penetration and ease of manipulation particularly in the near-infrared spectrum, light-responsive FNMs present innovative strategies for age-related comorbidities. This review comprehensively summarizes the potential of light-responsive FNM-based approaches for targeting cellular environments in age-related disorders, and also emphasizes the advantages over traditional treatment modalities. Specifically, it focuses on the development of various classes of light-responsive functional nanomaterials including plasmonic nanomaterials, nanomaterials as carriers, upconversion nanomaterials, 2D nanomaterials, transition metal oxide and dichalcogenide nanomaterials and carbon-based nanomaterials against age related diseases. We foresee that such advanced developments in the field of nanotechnology could provide a new hope for clinical diagnosis and treatment of age-related disorders.
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Affiliation(s)
- Shubham Kumar Singh
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Karwar 342030, India.
| | - Shivay Parihar
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Karwar 342030, India.
| | - Sanskar Jain
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Karwar 342030, India.
| | - Ja-An Annie Ho
- Bioanalytical Chemistry and Nanobiomedicine Laboratory, Department of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
- Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan
| | - Raviraj Vankayala
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Karwar 342030, India.
- Interdisciplinary Research Platform, Smart Healthcare, Indian Institute of Technology Jodhpur, Karwar 342030, India
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9
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Wang B, Wang L, Gasek NS, Kuo CL, Nie J, Kim T, Yan P, Zhu J, Torrance BL, Zhou Y, Flores LC, Allen C, Andrade AM, Guo C, Cohn RL, Jellison ER, Bartley JM, Kuchel GA, Li S, Pirtskhalava T, Tchkonia T, Yadav S, Haynes L, Kirkland JL, Ikeno Y, Xu M. Intermittent clearance of p21-highly-expressing cells extends lifespan and confers sustained benefits to health and physical function. Cell Metab 2024; 36:1795-1805.e6. [PMID: 39111286 PMCID: PMC11315361 DOI: 10.1016/j.cmet.2024.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/18/2024] [Accepted: 07/08/2024] [Indexed: 08/11/2024]
Abstract
A key challenge in aging research is extending lifespan in tandem with slowing down functional decline so that life with good health (healthspan) can be extended. Here, we show that monthly clearance, starting from 20 months, of a small number of cells that highly express p21Cip1 (p21high) improves cardiac and metabolic function and extends both median and maximum lifespans in mice. Importantly, by assessing the health and physical function of these mice monthly until death, we show that clearance of p21high cells improves physical function at all remaining stages of life, suggesting healthspan extension. Mechanistically, p21high cells encompass several cell types with a relatively conserved proinflammatory signature. Clearance of p21high cells reduces inflammation and alleviates age-related transcriptomic signatures of various tissues. These findings demonstrate the feasibility of healthspan extension in mice and indicate p21high cells as a therapeutic target for healthy aging.
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Affiliation(s)
- Binsheng Wang
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Lichao Wang
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Nathan S Gasek
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Chia-Ling Kuo
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Public Health Sciences, UConn Health, Farmington, CT 06030, USA
| | - Jia Nie
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Taewan Kim
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Pengyi Yan
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Junyu Zhu
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Blake L Torrance
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Immunology, UConn Health, Farmington, CT 06030, USA
| | - Yueying Zhou
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Xiangya Stomatological Hospital, Central South University, Changsha, China
| | - Lisa C Flores
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Colton Allen
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | | | - Chun Guo
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA
| | - Rachel L Cohn
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Evan R Jellison
- Department of Immunology, UConn Health, Farmington, CT 06030, USA
| | - Jenna M Bartley
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Immunology, UConn Health, Farmington, CT 06030, USA
| | - George A Kuchel
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA
| | - Sheng Li
- The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA
| | - Tamar Pirtskhalava
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Center for Advanced Gerotherapeutics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Tamar Tchkonia
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Center for Advanced Gerotherapeutics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Sumit Yadav
- Department of Growth and Development, UNMC College of Dentistry, Omaha, NE 68114, USA; Children's of Omaha - Children's Hospital, Omaha, NE 68114, USA
| | - Laura Haynes
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Immunology, UConn Health, Farmington, CT 06030, USA
| | - James L Kirkland
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Center for Advanced Gerotherapeutics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Division of General Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Yuji Ikeno
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA; Geriatric Research Education and Clinical Center (GRECC), Audie L. Murphy VA Hospital, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
| | - Ming Xu
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA.
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10
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Unfried M. Advancing longevity research through decentralized science. FRONTIERS IN AGING 2024; 5:1353272. [PMID: 39136005 PMCID: PMC11317406 DOI: 10.3389/fragi.2024.1353272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 06/26/2024] [Indexed: 08/15/2024]
Abstract
In an era marked by scientific stagnation, Decentralized Science (DeSci) challenges the inefficiencies of traditional funding and publishing systems. DeSci employs blockchain technology to address the misalignment of incentives in academic research, emphasizing transparency, rapid funding, and open-source principles. Centralized institutions have been linked to a deceleration of progress, which is acutely felt in the field of longevity science-a critical discipline as aging is the #1 risk factor for most diseases. DeSci proposes a transformative model where decentralized autonomous organizations (DAOs) facilitate community-driven funding, promoting high-risk, high-reward research. DeSci, particularly within longevity research, could catalyze a paradigm shift towards an equitable, efficient, and progressive scientific future.
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Affiliation(s)
- Maximilian Unfried
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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11
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Jo HG, Baek CY, Hwang Y, Baek E, Song HS, Lee D. Pain Relief, Functional Recovery, and Chondroprotective Effects of Angelica gigas Nakai in Osteoarthritis Due to Its Anti-Inflammatory Property: An In Vitro and In Vivo Study. Nutrients 2024; 16:2435. [PMID: 39125316 PMCID: PMC11314059 DOI: 10.3390/nu16152435] [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: 06/26/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Osteoarthritis (OA), characterized by chronic pain and joint degradation, is a progressive joint disease primarily induced by age-related systemic inflammation. Angelica gigas Nakai (AG), a medicinal plant widely used in East Asia, exhibits promising results for such conditions. This study aimed to evaluate the potential of AG as a drug candidate for modulating the multifaceted pathology of OA based on its anti-inflammatory properties. We evaluated the efficacy of AG in pain relief, functional improvement, and cartilage erosion delay using monosodium iodoacetate-induced OA rats and acetic acid-induced writhing mice, along with its anti-inflammatory effects on multiple targets in the serum and cartilage of in vivo models and lipopolysaccharide-stimulated RAW 264.7 cells. In vivo experiments demonstrated significant analgesic and chondroprotective effects of AG, along with functional recovery, in model animals compared with the active controls. AG dose-dependently modulated inflammatory OA pathology-related targets, including interleukin-1β, tumor necrosis factor-α, matrix metalloproteinase-13, and cyclooxygenase-2, both in vitro and in vivo. In conclusion, AG could be a potential drug candidate for modulating the multifaceted pathology of OA. Nevertheless, further comprehensive investigations, involving a broader range of compounds, pathologies, and mechanisms, are warranted to validate these findings.
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Affiliation(s)
- Hee-Geun Jo
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea; (H.-G.J.); (C.Y.B.)
- Naturalis Inc., 6, Daewangpangyo-ro, Bundang-gu, Seongnam-si 13549, Republic of Korea
| | - Chae Yun Baek
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea; (H.-G.J.); (C.Y.B.)
| | - Yeseul Hwang
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea; (H.-G.J.); (C.Y.B.)
| | - Eunhye Baek
- RexSoft Inc., 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Ho Sueb Song
- Department of Acupuncture & Moxibustion Medicine, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea
| | - Donghun Lee
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Republic of Korea; (H.-G.J.); (C.Y.B.)
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12
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Hernandez-Gonzalez F, Pietrocola F, Cameli P, Bargagli E, Prieto-González S, Cruz T, Mendoza N, Rojas M, Serrano M, Agustí A, Faner R, Gómez-Puerta JA, Sellares J. Exploring the Interplay between Cellular Senescence, Immunity, and Fibrosing Interstitial Lung Diseases: Challenges and Opportunities. Int J Mol Sci 2024; 25:7554. [PMID: 39062798 PMCID: PMC11276754 DOI: 10.3390/ijms25147554] [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: 05/26/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Fibrosing interstitial lung diseases (ILDs) are characterized by the gradual and irreversible accumulation of scar tissue in the lung parenchyma. The role of the immune response in the pathogenesis of pulmonary fibrosis remains unclear. In recent years, substantial advancements have been made in our comprehension of the pathobiology driving fibrosing ILDs, particularly concerning various age-related cellular disturbances and immune mechanisms believed to contribute to an inadequate response to stress and increased susceptibility to lung fibrosis. Emerging studies emphasize cellular senescence as a key mechanism implicated in the pathobiology of age-related diseases, including pulmonary fibrosis. Cellular senescence, marked by antagonistic pleiotropy, and the complex interplay with immunity, are pivotal in comprehending many aspects of lung fibrosis. Here, we review progress in novel concepts in cellular senescence, its association with the dysregulation of the immune response, and the evidence underlining its detrimental role in fibrosing ILDs.
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Affiliation(s)
- Fernanda Hernandez-Gonzalez
- Department of Respiratory Medicine, Respiratory Institute, Hospital Clinic Barcelona, 08036 Barcelona, Spain; (A.A.); (J.S.)
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - Federico Pietrocola
- Department of Cell and Molecular Biology, Karolinska Institutet, 17165 Solna, Sweden;
| | - Paolo Cameli
- Respiratory Diseases Unit, Department of Medical and Surgical Sciences & Neuro-Sciences, University of Siena, 53100 Siena, Italy; (P.C.); (E.B.)
| | - Elena Bargagli
- Respiratory Diseases Unit, Department of Medical and Surgical Sciences & Neuro-Sciences, University of Siena, 53100 Siena, Italy; (P.C.); (E.B.)
| | - Sergio Prieto-González
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Vasculitis Research Unit, Department of Autoimmune Diseases, Hospital Clinic Barcelona, 08036 Barcelona, Spain
| | - Tamara Cruz
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
| | - Nuria Mendoza
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
| | - Mauricio Rojas
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA;
| | - Manuel Serrano
- Cambridge Institute of Science, Altos Labs, Cambridge CB21 6GP, UK;
| | - Alvar Agustí
- Department of Respiratory Medicine, Respiratory Institute, Hospital Clinic Barcelona, 08036 Barcelona, Spain; (A.A.); (J.S.)
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
| | - Rosa Faner
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
- Biomedicine Department, University of Barcelona, 08036 Barcelona, Spain
| | - Jose A. Gómez-Puerta
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Rheumatology Department, Hospital Clinic Barcelona, 08036 Barcelona, Spain
| | - Jacobo Sellares
- Department of Respiratory Medicine, Respiratory Institute, Hospital Clinic Barcelona, 08036 Barcelona, Spain; (A.A.); (J.S.)
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
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13
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Patel SK, Bons J, Rose JP, Chappel JR, Beres RL, Watson MA, Webster C, Burton JB, Bruderer R, Desprez PY, Reiter L, Campisi J, Baker ES, Schilling B. Exosomes Released from Senescent Cells and Circulatory Exosomes Isolated from Human Plasma Reveal Aging-associated Proteomic and Lipid Signatures. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.22.600215. [PMID: 38979258 PMCID: PMC11230204 DOI: 10.1101/2024.06.22.600215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Senescence emerged as a significant mechanism of aging and age-related diseases, offering an attractive target for clinical interventions. Senescent cells release a senescence-associated secretory phenotype (SASP), including exosomes that may act as signal transducers between distal tissues, propagating secondary or bystander senescence and signaling throughout the body. However, the composition of exosome SASP remains underexplored, presenting an opportunity for novel unbiased discovery. Here, we present a detailed proteomic and lipidomic analysis of exosome SASP using mass spectrometry from human plasma from young and older individuals and from tissue culture of senescent primary human lung fibroblasts. We identified ~1,300 exosome proteins released by senescent fibroblasts induced by three different senescence inducers causing most exosome proteins to be differentially regulated with senescence. In parallel, a human plasma cohort from young and old individuals revealed over 1,350 exosome proteins and 171 plasma exosome proteins were regulated when comparing old vs young individuals. Of the age-regulated plasma exosome proteins, we observed 52 exosome SASP factors that were also regulated in exosomes from the senescent fibroblasts, including serine protease inhibitors (SERPINs), Prothrombin, Coagulation factor V, Plasminogen, and Reelin. In addition, 247 lipids were identified with high confidence in all exosome samples. Following the senescence inducers, a majority of the identified phosphatidylcholine, phosphatidylethanolamine, and sphingomyelin species increased significantly indicating cellular membrane changes. The most notable categories of significantly changed proteins were related to extracellular matrix remodeling and inflammation, both potentially detrimental pathways that can damage surrounding tissues and even induce secondary or bystander senescence. Our findings reveal mechanistic insights and potential senescence biomarkers, enabling a better approach to surveilling the senescence burden in the aging population and offering promising therapeutic targets for interventions.
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14
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Stanmore E, Eost-Telling C, Meekes W, Banham K, Chillala J, Roy B, Firth J. Exergames for falls prevention in sheltered homes: a feasibility study. Front Public Health 2024; 12:1344019. [PMID: 38975352 PMCID: PMC11227257 DOI: 10.3389/fpubh.2024.1344019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 06/10/2024] [Indexed: 07/09/2024] Open
Abstract
Introduction Falls prevention is a global priority given its substantial impact on older adults and cost to healthcare systems. Advances in telerehabilitation technology such as `exergaming' show potential for delivering accessible, engaging exercise programs for older adults. This study aimed to establish the feasibility, acceptability and usability of exergaming in sheltered housing. Methods A mixed-methods study with participants randomised in 2 sheltered housing facilities to intervention (n = 1 home, 12 participants) and control (n = 1 home 2, 12 participants) provided usual care for all, (physiotherapy prescribed strength and balance exercises and falls prevention advice) and a 6-week supervised exergaming programme (MIRA) offered 3 times per week to the intervention group only. At 6 weeks, feasibility, usability and acceptability outcomes were collected and analysed using descriptive statistics; qualitative focus groups with participants and interviews with staff were also completed and thematically analysed to elicit barriers and facilitators to usability and acceptability. Results Mean exercise per week increased from 10.6 to 14.1 minutes in the control group and 9.6 to 36.8 minutes in the intervention group. All study processes and measures appeared feasible; 72% of those invited consented to taking part and 92% completed 6-week follow-up. Individual domains for the System Usability Scores (SUS) showed participants felt `very confident' using the system with support (70%), would `like to use exergames frequently' (50%) and found the system `easy to use' (90%). However, they also felt they `needed to learn a lot at the beginning' (40%) and would `need technical support' (70%) for independent use of the exergames. Mean overall SUS was 63 reflecting moderate usability for independent use. Qualitative data indicated exergames were well received and highlighted motivational and social aspects; costs and set up. Staff also felt exergaming complemented traditional care. Discussion Our study contributes to the evidence guiding the use of exergames to deliver suitable falls prevention interventions for older adults within sheltered housing in community settings.
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Affiliation(s)
- Emma Stanmore
- School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Manchester Institute for Collaborative Research on Ageing, Manchester, United Kingdom
- Manchester Academic Health Science Centre, Manchester, United Kingdom
- Manchester University NHS Foundation Trust, Manchester, United Kingdom
| | - Charlotte Eost-Telling
- School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- National Institute for Health and Care Research, Applied Research Collaboration Greater Manchester, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Wytske Meekes
- Academic Collaborative Center Older Adults, Tilburg School of Social and Behavioral Sciences, Tilburg University, Tilburg, Netherlands
| | - Kelly Banham
- Community Therapy, Wigan and Leigh Teaching Hospitals NHS Foundation Trust, Manchester, United Kingdom
| | - Jay Chillala
- Acute Medicine and Elderly Care Department, Manchester University National Health Service Foundation Trust, Manchester, United Kingdom
| | - Bibhas Roy
- Trauma and Orthopaedics Department, Trafford Hospital, Moorside Road, Manchester University National Health Service Foundation Trust, Manchester, United Kingdom
| | - Joseph Firth
- Division of Psychology and Mental Health, Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom
- Manchester Academic Health Science Centre, Greater Manchester Mental Health NHS Foundation Trust, Manchester, United Kingdom
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15
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Nazzi C, Avenanti A, Battaglia S. The Involvement of Antioxidants in Cognitive Decline and Neurodegeneration: Mens Sana in Corpore Sano. Antioxidants (Basel) 2024; 13:701. [PMID: 38929140 PMCID: PMC11200558 DOI: 10.3390/antiox13060701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
With neurodegenerative disorders being on the rise, a great deal of research from multiple fields is being conducted in order to further knowledge and propose novel therapeutic interventions. Among these investigations, research on the role of antioxidants in contrasting cognitive decline is putting forward interesting and promising results. In this review, we aim to collect evidence that focused on the role of a variety of antioxidants and antioxidant-rich foods in improving or stabilizing cognitive functions, memory, and Alzheimer's disease, the most common neurodegenerative disorder. Specifically, we considered evidence collected on humans, either through longitudinal studies or randomized, placebo-controlled ones, which evaluated cognitive performance, memory abilities, or the progression level of neurodegeneration. Overall, despite a great deal of variety between study protocols, cohorts of participants involved, neuropsychological tests used, and investigated antioxidants, there is a solid trend that suggests that the properties of antioxidants may be helpful in hampering cognitive decline in older people. Thus, the help of future research that will further elucidate the role of antioxidants in neuroprotection will lead to the development of novel interventions that will take into account such findings to provide a more global approach to treating neurodegenerative disorders.
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Affiliation(s)
- Claudio Nazzi
- Dipartimento di Psicologia, Università degli Studi di Torino, 10134 Torino, Italy;
- Centro Studi e Ricerche in Neuroscienze Cognitive, Dipartimento di Psicologia “Renzo Canestrari”, Alma Mater Studiorum Università di Bologna, Campus di Cesena, 47521 Cesena, Italy;
| | - Alessio Avenanti
- Centro Studi e Ricerche in Neuroscienze Cognitive, Dipartimento di Psicologia “Renzo Canestrari”, Alma Mater Studiorum Università di Bologna, Campus di Cesena, 47521 Cesena, Italy;
- Neuropsychology and Cognitive Neuroscience Research Center (CINPSI Neurocog), Universidad Católica del Maule, Talca 3460000, Chile
| | - Simone Battaglia
- Dipartimento di Psicologia, Università degli Studi di Torino, 10134 Torino, Italy;
- Centro Studi e Ricerche in Neuroscienze Cognitive, Dipartimento di Psicologia “Renzo Canestrari”, Alma Mater Studiorum Università di Bologna, Campus di Cesena, 47521 Cesena, Italy;
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16
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Yousef A, Sosnowski DK, Fang L, Legaspi RJ, Korodimas J, Lee A, Magor KE, Seubert JM. Cardioprotective response and senescence in aged sEH null female mice exposed to LPS. Am J Physiol Heart Circ Physiol 2024; 326:H1366-H1385. [PMID: 38578240 DOI: 10.1152/ajpheart.00706.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/06/2024]
Abstract
Deterioration of physiological systems, like the cardiovascular system, occurs progressively with age impacting an individual's health and increasing susceptibility to injury and disease. Cellular senescence has an underlying role in age-related alterations and can be triggered by natural aging or prematurely by stressors such as the bacterial toxin lipopolysaccharide (LPS). The metabolism of polyunsaturated fatty acids by CYP450 enzymes produces numerous bioactive lipid mediators that can be further metabolized by soluble epoxide hydrolase (sEH) into diol metabolites, often with reduced biological effects. In our study, we observed age-related cardiac differences in female mice, where young mice demonstrated resistance to LPS injury, and genetic deletion or pharmacological inhibition of sEH using trans-4-[4-(3-adamantan-1-yl-ureido)-cyclohexyloxy]-benzoic acid attenuated LPS-induced cardiac dysfunction in aged female mice. Bulk RNA-sequencing analyses revealed transcriptomics differences in aged female hearts. The confirmatory analysis demonstrated changes to inflammatory and senescence gene markers such as Il-6, Mcp1, Il-1β, Nlrp3, p21, p16, SA-β-gal, and Gdf15 were attenuated in the hearts of aged female mice where sEH was deleted or inhibited. Collectively, these findings highlight the role of sEH in modulating the aging process of the heart, whereby targeting sEH is cardioprotective.NEW & NOTEWORTHY Soluble epoxide hydrolase (sEH) is an essential enzyme for converting epoxy fatty acids to their less bioactive diols. Our study suggests deletion or inhibition of sEH impacts the aging process in the hearts of female mice resulting in cardioprotection. Data indicate targeting sEH limits inflammation, preserves mitochondria, and alters cellular senescence in the aged female heart.
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Affiliation(s)
- Ala Yousef
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Deanna K Sosnowski
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Liye Fang
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
- Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Renald James Legaspi
- Department of Biological Sciences, Faculty of Science, University of Alberta, Edmonton, Alberta, Canada
| | - Jacob Korodimas
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
- Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Andy Lee
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Katharine E Magor
- Department of Biological Sciences, Faculty of Science, University of Alberta, Edmonton, Alberta, Canada
| | - John M Seubert
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
- Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
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Harinath G, Zalzala S, Nyquist A, Wouters M, Isman A, Moel M, Verdin E, Kaeberlein M, Kennedy B, Bischof E. The role of quality of life data as an endpoint for collecting real-world evidence within geroscience clinical trials. Ageing Res Rev 2024; 97:102293. [PMID: 38574864 DOI: 10.1016/j.arr.2024.102293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/21/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
With geroscience research evolving at a fast pace, the need arises for human randomized controlled trials to assess the efficacy of geroprotective interventions to prevent age-related adverse outcomes, disease, and mortality in normative aging cohorts. However, to confirm efficacy requires a long-term and costly approach as time to the event of morbidity and mortality can be decades. While this could be circumvented using sensitive biomarkers of aging, current molecular, physiological, and digital endpoints require further validation. In this review, we discuss how collecting real-world evidence (RWE) by obtaining health data that is amenable for collection from large heterogeneous populations in a real-world setting can help speed up validation of geroprotective interventions. Further, we propose inclusion of quality of life (QoL) data as a biomarker of aging and candidate endpoint for geroscience clinical trials to aid in distinguishing healthy from unhealthy aging. We highlight how QoL assays can aid in accelerating data collection in studies gathering RWE on the geroprotective effects of repurposed drugs to support utilization within healthy longevity medicine. Finally, we summarize key metrics to consider when implementing QoL assays in studies, and present the short-form 36 (SF-36) as the most well-suited candidate endpoint.
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Affiliation(s)
| | | | | | | | | | | | - Eric Verdin
- Buck Institute for Research on Aging, Novato, CA, USA
| | | | - Brian Kennedy
- Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Centre for Healthy Longevity, National University Health System, Singapore
| | - Evelyne Bischof
- Department of Medical Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai University of Medicine and Health Sciences, Shanghai, China; Sheba Longevity Center, Sheba Medical Center, Tel Aviv, Israel.
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18
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Gilmore N, Grant SJ, Bethea TN, Schiaffino MK, Klepin HD, Dale W, Hardi A, Mandelblatt J, Mohile S. A scoping review of racial, ethnic, socioeconomic, and geographic disparities in the outcomes of older adults with cancer. J Am Geriatr Soc 2024; 72:1867-1900. [PMID: 38593225 PMCID: PMC11187671 DOI: 10.1111/jgs.18881] [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: 02/14/2024] [Accepted: 02/14/2024] [Indexed: 04/11/2024]
Abstract
INTRODUCTION Cancer health disparities are widespread. Nevertheless, the disparities in outcomes among diverse survivors of cancer ages 65 years and older ("older") have not been systematically evaluated. METHODS We conducted a scoping review of original research articles published between January 2016 and September 2023 and indexed in Medline (Ovid), Embase, Scopus, and CINAHL databases. We included studies evaluating racial, ethnic, socioeconomic disadvantaged, geographic, sexual and gender, and/or persons with disabilities disparities in treatment, survivorship, and mortality among older survivors of cancer. We excluded studies with no a priori aims related to a health disparity, review articles, conference proceedings, meeting abstracts, studies with unclear methodologies, and articles in which the disparity group was examined only as an analytic covariate. Two reviewers independently extracted data following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis reporting guidelines. RESULTS After searching and removing duplicates, 2573 unique citations remained and after screening 59 articles met the inclusion criteria. Many investigated more than one health disparity, and most focused on racial and ethnic (n = 44) or socioeconomic (n = 25) disparities; only 10 studies described geographic disparities, and none evaluated disparities in persons with disabilities or due to sexual and gender identity. Research investigating disparities in outcomes among diverse older survivors of cancer is increasing gradually-68% of eligible articles were published between 2020 and 2023. Most studies focused on the treatment phase of care (n = 28) and mortality (n = 26), with 16 examined disparities in survivorship, symptoms, or quality of life. Most research was descriptive and lacked analyses of potential underlying mechanisms contributing to the reported disparities. CONCLUSION Little research has evaluated the effect of strategies to reduce health disparities among older patients with cancer. This lack of evidence perpetuates cancer inequities and leaves the cancer care system ill equipped to address the unique needs of the rapidly growing and increasingly diverse older adult cancer population.
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19
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Furuya S, Fletcher JM. Retirement Makes You Old? Causal Effect of Retirement on Biological Age. Demography 2024; 61:901-931. [PMID: 38779956 DOI: 10.1215/00703370-11380637] [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] [Indexed: 05/25/2024]
Abstract
Retirement is a critical life event for older people. Health scholars have scrutinized the health effects of retirement, but its consequences on age-related diseases and mortality are unclear. We extend this body of research by integrating measurements of biological age, representing the physiological decline preceding disease onset. Using data from the UK Biobank and a fuzzy regression discontinuity design, we estimated the effects of retirement on two biomarker-based biological age measures. Results showed that retirement significantly increases biological age for those induced to retire by the State Pension eligibility by 0.871-2.503 years, depending on sex and specific biological age measurement. Given the emerging scientific discussion about direct interventions to biological age to achieve additional improvements in population health, the positive effect of retirement on biological age has important implications for an increase in the State Pension eligibility age and its potential consequences on population health, public health care policy, and older people's labor force participation. Overall, this study provides novel empirical evidence contributing to the question of what social factors make people old.
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Affiliation(s)
- Shiro Furuya
- Department of Sociology, Center for Demography and Ecology, and Center for Demography of Health and Aging, University of Wisconsin-Madison, Madison, WI, USA
| | - Jason M Fletcher
- Center for Demography and Ecology, La Follette School of Public Affairs, Department of Population Health Science, and Department of Agricultural and Applied Economics, University of Wisconsin-Madison, Madison, WI, USA
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20
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Yang X, Qi M. Inhibiting or promoting: Population aging and economic development in China. PLoS One 2024; 19:e0303197. [PMID: 38814970 PMCID: PMC11139296 DOI: 10.1371/journal.pone.0303197] [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: 01/09/2024] [Accepted: 04/20/2024] [Indexed: 06/01/2024] Open
Abstract
Population aging has become a social issue of concern to the whole world, and as the world's most populous country, how to cope with population aging will be a hot issue that all sectors of Chinese society must think about. This paper uses provincial panel data from 30 provinces in China from 2000 to 2021 to study the relationship between population aging and economic development based on the perspective of health expenditure. The DIFF-GMM model, the fixed effect model (FE), and fixed effect instrumental variable model (FE-IV) are used to test this study. The following two conclusions are drawn from the empirical study: (1) population aging has a significant inhibitory effect on economic development, while health expenditures have a significant promotional effect on economic development; and (2) increased health expenditures help to alleviate the negative impact of population aging on economic development. However, the deepening of population aging will likewise inhibit the positive effect of health expenditure on economic growth. Based on the conclusions of the study, it is recommended that the government and society should continue to increase spending in the field of health protection, encourage and guide residents to carry out self-care, and moderately increase personal health expenditure, to promote economic development with healthy bodies and realize the goal of "Healthy China".
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Affiliation(s)
- XiFeng Yang
- School of International Education, Jiangxi Science & Technology Normal University, Nanchan, Jiangxi Province, China
| | - MeiHui Qi
- Department of Business Administration, Lingnan Normal University, Zhanjiang, Guangdong, China
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21
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Kawamura T, Higuchi M, Ito T, Kawakami R, Usui C, McGreevy KM, Horvath S, Zsolt R, Torii S, Suzuki K, Ishii K, Sakamoto S, Oka K, Muraoka I, Tanisawa K. Healthy Japanese dietary pattern is associated with slower biological aging in older men: WASEDA'S health study. Front Nutr 2024; 11:1373806. [PMID: 38854166 PMCID: PMC11157009 DOI: 10.3389/fnut.2024.1373806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 05/14/2024] [Indexed: 06/11/2024] Open
Abstract
Aging is the greatest risk factor for numerous diseases and mortality, and establishing geroprotective interventions targeting aging is required. Previous studies have suggested that healthy dietary patterns, such as the Mediterranean diet, are associated with delayed biological aging; however, these associations depend on nationality and sex. Therefore, this study aimed to investigate the relationship between dietary patterns identified through principal component analysis and biological aging in older men of Japan, one of the countries with the longest life expectancies. Principal component analysis identified two dietary patterns: a healthy Japanese dietary pattern and a Western-style dietary pattern. Eight epigenetic clocks, some of the most accurate aging biomarkers, were identified using DNA methylation data from whole-blood samples. Correlation analyses revealed that healthy Japanese dietary patterns were significantly negatively or positively correlated with multiple epigenetic age accelerations (AgeAccel), including AgeAccelGrim, FitAgeAccel, and age-adjusted DNAm-based telomere length (DNAmTLAdjAge). Conversely, the Western-style dietary pattern was observed not to correlate significantly with any of the examined AgeAccels or age-adjusted values. After adjusting for covariates, the healthy Japanese dietary pattern remained significantly positively correlated with DNAmTLAdjAge. Regression analysis showed that healthy Japanese dietary pattern contributed less to epigenetic age acceleration than smoking status. These findings suggest that a Western-style dietary pattern may not be associated with biological aging, whereas a healthy Japanese dietary pattern is associated with delayed biological aging in older Japanese men. Our findings provide evidence that healthy dietary patterns may have mild beneficial effects on delayed biological aging in older Japanese men.
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Affiliation(s)
- Takuji Kawamura
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
- Research Center for Molecular Exercise Science, Hungarian University of Sports Science, Budapest, Hungary
| | - Mitsuru Higuchi
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Tomoko Ito
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
- Department of Food and Nutrition, Tokyo Kasei University, Tokyo, Japan
| | - Ryoko Kawakami
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
- Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and Welfare, Tokyo, Japan
| | - Chiyoko Usui
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
- Center for Liberal Education and Learning, Sophia University, Tokyo, Japan
| | - Kristen M. McGreevy
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, United States
| | - Steve Horvath
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Altos Labs, San Diego Institute of Science, San Diego, CA, United States
| | - Radak Zsolt
- Research Center for Molecular Exercise Science, Hungarian University of Sports Science, Budapest, Hungary
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Suguru Torii
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | | | - Kaori Ishii
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Shizuo Sakamoto
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
- Faculty of Sport Science, Surugadai University, Saitama, Japan
| | - Koichiro Oka
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Isao Muraoka
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Kumpei Tanisawa
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
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22
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Gellert P, Brandenburg H, Franke A, Kessler EM, Krupp S, Pantel J, Schramek R, Simm A, Swoboda W, Wurm S, Fuellen G. [Strengthening prevention and health promotion in and for old age]. Z Gerontol Geriatr 2024; 57:199-206. [PMID: 38092985 PMCID: PMC11078798 DOI: 10.1007/s00391-023-02262-4] [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: 07/21/2023] [Accepted: 11/03/2023] [Indexed: 05/09/2024]
Abstract
BACKGROUND Disease prevention and health promotion in and for old age have become increasingly more important. Nevertheless, more (national) research and implementation in practice is needed, as the international comparison shows. OBJECTIVE To develop guiding principles for research and practice on prevention and health promotion in and for old age. MATERIAL AND METHODS As part of an iterative process, members of the German Society of Gerontology and Geriatrics came together in workshops and symposia to formulate key guiding principles and fields of action for prevention and health promotion. RESULTS The following were worked out: 1) prevention and health promotion are useful and possible up to oldest age, 2) prevention and health promotion for advanced age should start early, 3) prevention and health promotion must take into account the diversity and heterogeneity of the life situations of old people, 4) prevention and health promotion promote and demand self-determination and participation, 5) prevention of multiple illnesses must be given greater attention, 6) prevention of the need for long-term care and prevention in long-term care must be treated equally, 7) prevention and health promotion must be thought of in terms of life worlds and across sectors, paying particular attention to aspects of social inequality and a focus on resources, 8) prevention and health promotion and the related research must be interdisciplinary and transdisciplinary and be applied at different levels, from molecular to societal. DISCUSSION The guiding principles outline the focal points of future-oriented ageing, health and healthcare research and open up fields of action but also show the limits of this approach for political decision-makers, researchers and practitioners.
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Affiliation(s)
- Paul Gellert
- Institut für Medizinische Soziologie und Rehabilitationswissenschaft, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Deutschland.
- Friede Springer - Cardiovascular Prevention Center, Berlin, Deutschland.
- Deutsches Zentrum für Psychische Gesundheit (DZPG), Standort Berlin/Potsdam, Deutschland.
- Einstein Center for Population Diversity, Berlin, Deutschland.
| | - Hermann Brandenburg
- Dekan, Pflegewissenschaftliche Fakultät, Vinzenz Pallotti University Vallendar, Vallendar, Deutschland
| | - Annette Franke
- Gesundheitswissenschaften, Soziale Gerontologie und Methoden und Konzepte der Sozialen Arbeit, Evangelische Hochschule Ludwigsburg, Ludwigsburg, Deutschland
| | - Eva-Marie Kessler
- Department Psychologie, MSB Medical School Berlin, Berlin, Deutschland
| | - Sonja Krupp
- Forschungsgruppe Geriatrie Lübeck, Krankenhaus Rotes Kreuz Lübeck Geriatriezentrum, Lübeck, Deutschland
| | - Johannes Pantel
- Arbeitsbereich Altersmedizin mit Schwerpunkt Psychogeriatrie und klinische Gerontologie, Institut für Allgemeinmedizin, Goethe-Universität Frankfurt am Main, Frankfurt am Main, Deutschland
- Frankfurter Forum für interdisziplinäre Alternsforschung (FFIA), Goethe-Universität Frankfurt, Frankfurt am Main, Deutschland
| | - Renate Schramek
- Gesundheitsdidaktik, Department of Community Health, Hochschule für Gesundheit Bochum, Bochum, Deutschland
| | - Andreas Simm
- Universitätsklinik und Poliklinik für Herzchirurgie, Martin-Luther-Universität Halle-Wittenberg, Halle, Deutschland
- Klinik und Poliklinik für Herzchirurgie, Martin Luther Universität Halle-Wittenberg, Ernst-Grube Straße 40, 06120, Halle (Saale), Deutschland
| | - Walter Swoboda
- Praxis für Geriatrie und Innere Medizin, Würzburg, Deutschland
- Institut für Biomedizin des Alterns, Nürnberg, Deutschland
| | - Susanne Wurm
- Abteilung für Präventionsforschung und Sozialmedizin, Institut für Community Medicine, Universitätsmedizin Greifswald, Greifswald, Deutschland
| | - Georg Fuellen
- Institut für Biostatistik und Informatik in Medizin und Alternsforschung (IBIMA), Universitätsmedizin Rostock, Rostock, Deutschland
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23
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Khan M, Al Saud H, Sierra F, Perez V, Greene W, Al Asiry S, Pathai S, Torres M. Global Healthspan Summit 2023: closing the gap between healthspan and lifespan. NATURE AGING 2024; 4:445-448. [PMID: 38486031 DOI: 10.1038/s43587-024-00593-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
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24
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Chen P, Wang Y, Zhou B. Insights into targeting cellular senescence with senolytic therapy: The journey from preclinical trials to clinical practice. Mech Ageing Dev 2024; 218:111918. [PMID: 38401690 DOI: 10.1016/j.mad.2024.111918] [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: 12/26/2023] [Revised: 02/07/2024] [Accepted: 02/21/2024] [Indexed: 02/26/2024]
Abstract
Interconnected, fundamental aging processes are central to many illnesses and diseases. Cellular senescence is a mechanism that halts the cell cycle in response to harmful stimuli. Senescent cells (SnCs) can emerge at any point in life, and their persistence, along with the numerous proteins they secrete, can negatively affect tissue function. Interventions aimed at combating persistent SnCs, which can destroy tissues, have been used in preclinical models to delay, halt, or even reverse various diseases. Consequently, the development of small-molecule senolytic medicines designed to specifically eliminate SnCs has opened potential avenues for the prevention or treatment of multiple diseases and age-related issues in humans. In this review, we explore the most promising approaches for translating small-molecule senolytics and other interventions targeting senescence in clinical practice. This discussion highlights the rationale for considering SnCs as therapeutic targets for diseases affecting individuals of all ages.
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Affiliation(s)
- Peng Chen
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, PR China.
| | - Yulai Wang
- Department of Pharmacy, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, Hubei, P.R. China
| | - Benhong Zhou
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, PR China
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25
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Ansari MM, Ghosh M, Lee DS, Son YO. Senolytic therapeutics: An emerging treatment modality for osteoarthritis. Ageing Res Rev 2024; 96:102275. [PMID: 38494091 DOI: 10.1016/j.arr.2024.102275] [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: 12/12/2023] [Revised: 02/15/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
Osteoarthritis (OA), a chronic joint disease affecting millions of people aged over 65 years, is the main musculoskeletal cause of diminished joint mobility in the elderly. It is characterized by lingering pain and increasing deterioration of articular cartilage. Aging and accumulation of senescent cells (SCs) in the joints are frequently associated with OA. Apoptosis resistance; irreversible cell cycle arrest; increased p16INK4a expression, secretion of senescence-associated secretory phenotype factors, senescence-associated β-galactosidase levels, secretion of extracellular vesicles, and levels of reactive oxygen and reactive nitrogen species; and mitochondrial dysregulation are some common changes in cellular senescence in joint tissues. Development of OA correlates with an increase in the density of SCs in joint tissues. Senescence-associated secretory phenotype has been linked to OA and cartilage breakdown. Senolytics and therapeutic pharmaceuticals are being focused upon for OA management. SCs can be selectively eliminated or killed by senolytics to halt the pathogenesis and progression of OA. Comprehensive understanding of how aging affects joint dysfunction will benefit OA patients. Here, we discuss age-related mechanisms associated with OA pathogenesis and senolytics as an emerging modality in the management of age-related SCs and pathogenesis of OA in preclinical and clinical studies.
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Affiliation(s)
- Md Meraj Ansari
- Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si 63243, Republic of Korea
| | - Mrinmoy Ghosh
- Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si 63243, Republic of Korea; Department of Biotechnology, School of Bio, Chemical and Processing Engineering (SBCE), Kalasalingam Academy of Research and Education, Krishnankoil 626126, India
| | - Dong-Sun Lee
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju-si 63243, Republic of Korea; Bio-Health Materials Core-Facility Center, Jeju National University, Jeju 63243, Republic of Korea; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si 63243, Republic of Korea; Practical Translational Research Center, Jeju National University, Jeju 63243, Republic of Korea.
| | - Young-Ok Son
- Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si 63243, Republic of Korea; Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju-si 63243, Republic of Korea; Bio-Health Materials Core-Facility Center, Jeju National University, Jeju 63243, Republic of Korea; Practical Translational Research Center, Jeju National University, Jeju 63243, Republic of Korea.
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26
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Verschoor CP, Theou O, Ma J, Montgomery P, Mossey S, Nangia P, Saskin R, Savage DW. Age- and sex-specific associations of frailty with mortality and healthcare utilization in community-dwelling adults from ontario, Canada. BMC Geriatr 2024; 24:223. [PMID: 38438981 PMCID: PMC10913570 DOI: 10.1186/s12877-024-04842-4] [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: 11/16/2023] [Accepted: 02/23/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Understanding how health trajectories are related to the likelihood of adverse outcomes and healthcare utilization is key to planning effective strategies for improving health span and the delivery of care to older adults. Frailty measures are useful tools for risk stratification in community-based and primary care settings, although their effectiveness in adults younger than 60 is not well described. METHODS We performed a 10-year retrospective analysis of secondary data from the Ontario Health Study, which included 161,149 adults aged ≥ 18. Outcomes including all-cause mortality and hospital admissions were obtained through linkage to ICES administrative databases with a median follow-up of 7.1-years. Frailty was characterized using a 30-item frailty index. RESULTS Frailty increased linearly with age and was higher for women at all ages. A 0.1-increase in frailty was significantly associated with mortality (HR = 1.47), the total number of outpatient (IRR = 1.35) and inpatient (IRR = 1.60) admissions over time, and length of stay (IRR = 1.12). However, with exception to length of stay, these estimates differed depending on age and sex. The hazard of death associated with frailty was greater at younger ages, particularly in women. Associations with admissions also decreased with age, similarly between sexes for outpatient visits and more so in men for inpatient. CONCLUSIONS These findings suggest that frailty is an important health construct for both younger and older adults. Hence targeted interventions to reduce the impact of frailty before the age of 60 would likely have important economic and social implications in both the short- and long-term.
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Affiliation(s)
- Chris P Verschoor
- Health Sciences North Research Institute, Sudbury, ON, Canada.
- NOSM University, Sudbury/Thunder Bay, ON, Canada.
- , 56 Walford Road, Rm. 119, P3E 2H2, Sudbury, ON, Canada.
| | - Olga Theou
- School of Physiotherapy, Dalhousie University, Halifax, NS, Canada
| | - Jinhui Ma
- Dept. of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada
| | | | - Sharolyn Mossey
- School of Nursing, Laurentian University, Sudbury, ON, Canada
| | - Parveen Nangia
- School of Social Sciences, Laurentian University, Sudbury, ON, Canada
| | | | - David W Savage
- Health Sciences North Research Institute, Sudbury, ON, Canada
- NOSM University, Sudbury/Thunder Bay, ON, Canada
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27
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Pereira B, Correia FP, Alves IA, Costa M, Gameiro M, Martins AP, Saraiva JA. Epigenetic reprogramming as a key to reverse ageing and increase longevity. Ageing Res Rev 2024; 95:102204. [PMID: 38272265 DOI: 10.1016/j.arr.2024.102204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/18/2023] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
The pursuit for the fountain of youth has long been a fascination amongst scientists and humanity. Ageing is broadly characterized by a cellular decline with increased susceptibility to age-related diseases, being intimately associated with epigenetic modifications. Recently, reprogramming-induced rejuvenation strategies have begun to greatly alter longevity research not only to tackle age-related defects but also to possibly reverse the cellular ageing process. Hence, in this review, we highlight the major epigenetic changes during ageing and the state-of-art of the current emerging epigenetic reprogramming strategies leveraging on transcription factors. Notably, partial reprogramming enables the resetting of the ageing clock without erasing cellular identity. Promising chemical-based rejuvenation strategies harnessing small molecules, including DNA methyltransferase and histone deacetylase inhibitors are also discussed. Moreover, in parallel to longevity interventions, the foundations of epigenetic clocks for accurate ageing assessment and evaluation of reprogramming approaches are briefly presented. Going further, with such scientific breakthroughs, we are witnessing a rise in the longevity biotech industry aiming to extend the health span and ideally achieve human rejuvenation one day. In this context, we overview the main scenarios proposed for the future of the socio-economic and ethical challenges associated with such an emerging field. Ultimately, this review aims to inspire future research on interventions that promote healthy ageing for all.
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Affiliation(s)
- Beatriz Pereira
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | | | - Inês A Alves
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Margarida Costa
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Mariana Gameiro
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Ana P Martins
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Jorge A Saraiva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal.
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28
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Gonzalez-Cano SI, Flores G, Guevara J, Morales-Medina JC, Treviño S, Diaz A. Polyoxidovanadates a new therapeutic alternative for neurodegenerative and aging diseases. Neural Regen Res 2024; 19:571-577. [PMID: 37721286 PMCID: PMC10581577 DOI: 10.4103/1673-5374.380877] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/18/2023] [Accepted: 06/22/2023] [Indexed: 09/19/2023] Open
Abstract
Aging is a natural phenomenon characterized by a progressive decline in physiological integrity, leading to a deterioration of cognitive function and increasing the risk of suffering from chronic-degenerative diseases, including cardiovascular diseases, osteoporosis, cancer, diabetes, and neurodegeneration. Aging is considered the major risk factor for Parkinson's and Alzheimer's disease develops. Likewise, diabetes and insulin resistance constitute additional risk factors for developing neurodegenerative disorders. Currently, no treatment can effectively reverse these neurodegenerative pathologies. However, some antidiabetic drugs have opened the possibility of being used against neurodegenerative processes. In the previous framework, Vanadium species have demonstrated a notable antidiabetic effect. Our research group evaluated polyoxidovanadates such as decavanadate and metforminium-decavanadate with preventive and corrective activity on neurodegeneration in brain-specific areas from rats with metabolic syndrome. The results suggest that these polyoxidovanadates induce neuronal and cognitive restoration mechanisms. This review aims to describe the therapeutic potential of polyoxidovanadates as insulin-enhancer agents in the brain, constituting a therapeutic alternative for aging and neurodegenerative diseases.
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Affiliation(s)
| | - Gonzalo Flores
- Institute of Physiology, Benemerita Autonomous University of Puebla, Puebla, Mexico
| | - Jorge Guevara
- Department of Biochemistry, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | | | - Samuel Treviño
- Faculty of Chemical Sciences, Benemerita Autonomous University of Puebla, Puebla, Mexico
| | - Alfonso Diaz
- Faculty of Chemical Sciences, Benemerita Autonomous University of Puebla, Puebla, Mexico
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29
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Baghdadi M, Nespital T, Monzó C, Deelen J, Grönke S, Partridge L. Intermittent rapamycin feeding recapitulates some effects of continuous treatment while maintaining lifespan extension. Mol Metab 2024; 81:101902. [PMID: 38360109 PMCID: PMC10900781 DOI: 10.1016/j.molmet.2024.101902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/26/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024] Open
Abstract
OBJECTIVE Rapamycin, a powerful geroprotective drug, can have detrimental effects when administered chronically. We determined whether intermittent treatment of mice can reduce negative effects while maintaining benefits of chronic treatment. METHODS From 6 months of age, male and female C3B6F1 hybrid mice were either continuously fed with 42 mg/kg rapamycin, or intermittently fed by alternating weekly feeding of 42 mg/kg rapamycin food with weekly control feeding. Survival of these mice compared to control animals was measured. Furthermore, longitudinal phenotyping including metabolic (body composition, GTT, ITT, indirect calorimetry) and fitness phenotypes (treadmil, rotarod, electrocardiography and open field) was performed. Organ specific pathology was assessed at 24 months of age. RESULTS Chronic rapamycin treatment induced glucose intolerance, which was partially ameliorated by intermittent treatment. Chronic and intermittent rapamycin treatments increased lifespan equally in males, while in females chronic treatment resulted in slightly higher survival. The two treatments had equivalent effects on testicular degeneration, heart fibrosis and liver lipidosis. In males, the two treatment regimes led to a similar increase in motor coordination, heart rate and Q-T interval, and reduction in spleen weight, while in females, they equally reduced BAT inflammation and spleen weight and maintained heart rate and Q-T interval. However, other health parameters, including age related pathologies, were better prevented by continuous treatment. CONCLUSIONS Intermittent rapamycin treatment is effective in prolonging lifespan and reduces some side-effects of chronic treatment, but chronic treatment is more beneficial to healthspan.
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Affiliation(s)
- Maarouf Baghdadi
- Max-Planck Institute for Biology of Ageing, Cologne, Germany; Cluster of Excellence Cellular Stress Responses in Aging-associated Diseases (CECAD), Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany
| | - Tobias Nespital
- Max-Planck Institute for Biology of Ageing, Cologne, Germany
| | - Carolina Monzó
- Max-Planck Institute for Biology of Ageing, Cologne, Germany; Institute for Integrative Systems Biology, Spanish National Research Council, Catedràtic Agustín Escardino Benlloch, Paterna, Spain
| | - Joris Deelen
- Max-Planck Institute for Biology of Ageing, Cologne, Germany; Cluster of Excellence Cellular Stress Responses in Aging-associated Diseases (CECAD), Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany
| | | | - Linda Partridge
- Max-Planck Institute for Biology of Ageing, Cologne, Germany; Institute of Healthy Ageing and Department of Genetics, Evolution and Environment, University College London, London, UK.
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30
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Thompson SD, Barrett KL, Rugel CL, Redmond R, Rudofski A, Kurian J, Curtin JL, Dayanidhi S, Lavasani M. Sex-specific preservation of neuromuscular function and metabolism following systemic transplantation of multipotent adult stem cells in a murine model of progeria. GeroScience 2024; 46:1285-1302. [PMID: 37535205 PMCID: PMC10828301 DOI: 10.1007/s11357-023-00892-5] [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: 06/13/2023] [Accepted: 07/25/2023] [Indexed: 08/04/2023] Open
Abstract
Onset and rates of sarcopenia, a disease characterized by a loss of muscle mass and function with age, vary greatly between sexes. Currently, no clinical interventions successfully arrest age-related muscle impairments since the decline is frequently multifactorial. Previously, we found that systemic transplantation of our unique adult multipotent muscle-derived stem/progenitor cells (MDSPCs) isolated from young mice-but not old-extends the health-span in DNA damage mouse models of progeria, a disease of accelerated aging. Additionally, induced neovascularization in the muscles and brain-where no transplanted cells were detected-strongly suggests a systemic therapeutic mechanism, possibly activated through circulating secreted factors. Herein, we used ZMPSTE24-deficient mice, a lamin A defect progeria model, to investigate the ability of young MDSPCs to preserve neuromuscular tissue structure and function. We show that progeroid ZMPST24-deficient mice faithfully exhibit sarcopenia and age-related metabolic dysfunction. However, systemic transplantation of young MDSPCs into ZMPSTE24-deficient progeroid mice sustained healthy function and histopathology of muscular tissues throughout their 6-month life span in a sex-specific manner. Indeed, female-but not male-mice systemically transplanted with young MDSPCs demonstrated significant preservation of muscle endurance, muscle fiber size, mitochondrial respirometry, and neuromuscular junction morphometrics. These novel findings strongly suggest that young MDSPCs modulate the systemic environment of aged animals by secreted rejuvenating factors to maintain a healthy homeostasis in a sex-specific manner and that the female muscle microenvironment remains responsive to exogenous regenerative cues in older age. This work highlights the age- and sex-related differences in neuromuscular tissue degeneration and the future prospect of preserving health in older adults with systemic regenerative treatments.
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Affiliation(s)
- Seth D Thompson
- Shirley Ryan AbilityLab, 355 E. Erie St, Chicago, IL, 60611, USA.
- Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, 60611, USA.
- Northwestern University Interdepartmental Neuroscience (NUIN) Graduate Program, Northwestern University, Chicago, IL, 60611, USA.
| | - Kelsey L Barrett
- Shirley Ryan AbilityLab, 355 E. Erie St, Chicago, IL, 60611, USA
| | - Chelsea L Rugel
- Shirley Ryan AbilityLab, 355 E. Erie St, Chicago, IL, 60611, USA
- Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, 60611, USA
- Northwestern University Interdepartmental Neuroscience (NUIN) Graduate Program, Northwestern University, Chicago, IL, 60611, USA
| | - Robin Redmond
- Shirley Ryan AbilityLab, 355 E. Erie St, Chicago, IL, 60611, USA
| | - Alexia Rudofski
- Shirley Ryan AbilityLab, 355 E. Erie St, Chicago, IL, 60611, USA
| | - Jacob Kurian
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, 60611, USA
| | - Jodi L Curtin
- Shirley Ryan AbilityLab, 355 E. Erie St, Chicago, IL, 60611, USA
| | - Sudarshan Dayanidhi
- Shirley Ryan AbilityLab, 355 E. Erie St, Chicago, IL, 60611, USA
- Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, 60611, USA
| | - Mitra Lavasani
- Shirley Ryan AbilityLab, 355 E. Erie St, Chicago, IL, 60611, USA.
- Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, 60611, USA.
- Northwestern University Interdepartmental Neuroscience (NUIN) Graduate Program, Northwestern University, Chicago, IL, 60611, USA.
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31
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Lee DJW, Hodzic Kuerec A, Maier AB. Targeting ageing with rapamycin and its derivatives in humans: a systematic review. THE LANCET. HEALTHY LONGEVITY 2024; 5:e152-e162. [PMID: 38310895 DOI: 10.1016/s2666-7568(23)00258-1] [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: 08/29/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 02/06/2024] Open
Abstract
Rapamycin and its derivatives (rapalogs) are inhibitors of mTOR, a major regulator of the ageing process. We aimed to summarise the effects of rapamycin and its derivatives on the severity of ageing-related physiological changes and disease in adults. A search across five databases yielded 18 400 unique articles, resulting in 19 included studies. Rapamycin and its derivatives improved physiological parameters associated with ageing in the immune, cardiovascular, and integumentary systems of healthy individuals or individuals with ageing-related diseases. Overall, no significant effects on the endocrine, muscular, or neurological systems were found. The effects of rapamycin or its derivatives on the respiratory, digestive, renal, and reproductive systems were not assessed. No serious adverse events attributed to rapamycin and its derivatives were reported in healthy individuals; however, there were increased numbers of infections and increases in total cholesterol, LDL cholesterol, and triglycerides in individuals with ageing-related diseases. Future studies should assess the remaining unexamined systems and test the effects of long-term exposure to rapamycin and its derivatives.
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Affiliation(s)
- Deborah J W Lee
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ajla Hodzic Kuerec
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Centre for Healthy Longevity, @AgeSingapore National University Health System, Singapore
| | - Andrea B Maier
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Centre for Healthy Longevity, @AgeSingapore National University Health System, Singapore; Department of Human Movement Sciences, @AgeAmsterdam, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands.
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Kirchweger B, Zwirchmayr J, Grienke U, Rollinger JM. The role of Caenorhabditis elegans in the discovery of natural products for healthy aging. Nat Prod Rep 2023; 40:1849-1873. [PMID: 37585263 DOI: 10.1039/d3np00021d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Covering: 2012 to 2023The human population is aging. Thus, the greatest risk factor for numerous diseases, such as diabetes, cancer and neurodegenerative disorders, is increasing worldwide. Age-related diseases do not typically occur in isolation, but as a result of multi-factorial causes, which in turn require holistic approaches to identify and decipher the mode of action of potential remedies. With the advent of C. elegans as the primary model organism for aging, researchers now have a powerful in vivo tool for identifying and studying agents that effect lifespan and health span. Natural products have been focal research subjects in this respect. This review article covers key developments of the last decade (2012-2023) that have led to the discovery of natural products with healthy aging properties in C. elegans. We (i) discuss the state of knowledge on the effects of natural products on worm aging including methods, assays and involved pathways; (ii) analyze the literature on natural compounds in terms of their molecular properties and the translatability of effects on mammals; (iii) examine the literature on multi-component mixtures with special attention to the studied organisms, extraction methods and efforts regarding the characterization of their chemical composition and their bioactive components. (iv) We further propose to combine small in vivo model organisms such as C. elegans and sophisticated analytical approaches ("wormomics") to guide the way to dissect complex natural products with anti-aging properties.
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Affiliation(s)
- Benjamin Kirchweger
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
| | - Julia Zwirchmayr
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
| | - Ulrike Grienke
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
| | - Judith M Rollinger
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
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Zhao R, Kou H, Jiang D, Wang F. Exploring the anti-aging effects of fisetin in telomerase-deficient progeria mouse model. PeerJ 2023; 11:e16463. [PMID: 38107570 PMCID: PMC10722989 DOI: 10.7717/peerj.16463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/24/2023] [Indexed: 12/19/2023] Open
Abstract
Aging is a natural and complex process characterized by the gradual deterioration of tissue and physiological functions in the organism over time. Cell senescence, a hallmark of aging, refers to the permanent and irreversible cell cycle arrest of proliferating cells triggered by endogenous stimuli or environmental stresses. Eliminating senescent cells has been shown to extend the healthy lifespan. In this study, we established a progeria mouse model with telomerase deficiency and confirmed the presence of shortened telomere length and increased expression of aging markers p16INK4a and p21CIP1 in the organ tissues of G3 Tert-/- mice. We identified fisetin as a potent senolytic drug capable of reversing premature aging signs in telomerase-deficient mice. Fisetin treatment effectively suppressed the upregulation of aging markers p16INK4a and p21CIP1 and reduced collagen fiber deposition. Furthermore, we observed a significant elevation in the mRNA level of Stc1 in G3Tert-/- mice, which was reduced after fisetin treatment. Stc1 has been implicated in anti-apoptotic processes through the upregulation of the Akt signaling pathway. Our findings reveal that fisetin exerts its anti-aging effect by inhibiting the Akt signaling pathway through the suppression of Stc1 expression, leading to the apoptosis of senescent cells.
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Affiliation(s)
- Rui Zhao
- Department of Genetics, Tianjin Medical University, Tianjin, China
| | - Haomeng Kou
- Department of Genetics, Tianjin Medical University, Tianjin, China
| | - Duo Jiang
- Department of Genetics, Tianjin Medical University, Tianjin, China
| | - Feng Wang
- Department of Genetics, Tianjin Medical University, Tianjin, China
- Institute of Prosthodontics School and Hospital of Stomatology, Tianjin Medical University, Tianjin, China
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Gallus S, Mosconi G, Stival C, Amerio A, Bertolini G, Bosetti C, Cavalieri d'Oro L, Fanucchi T, Iacoviello L, Lugo A, Stuckler D, Vigezzi GP, Zucchi A, Odone A. Who are the superheroes? A cross-sectional study on the determinants of good health among Italian older adults. Aging Clin Exp Res 2023; 35:2961-2969. [PMID: 37875705 DOI: 10.1007/s40520-023-02586-6] [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: 06/30/2023] [Accepted: 09/30/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND People who reach old age enjoying good physical and mental health can be defined as (health) "superheroes", given their relatively low impact on healthcare expenditure and the desirable model they represent. AIM To evaluate prevalence and possible determinants of being "physical superheroes" (i.e., free from the ten major chronic conditions, plus obesity), "mental superheroes" (i.e., free from major mental symptoms), and "superheroes" (i.e., both mental and physical superheroes). METHODS A telephone-based cross-sectional study (LOST in Lombardia) was conducted in November 2020 (i.e., during the COVID-19 pandemic) on a representative sample of 4,400 adults aged ≥ 65 years from Lombardy region, northern Italy. All participants provided both current data and data referring to one year before. RESULTS Mental and physical superheroes were 59.0% and 17.6%, respectively. Superheroes were 12.8% overall, 15.1% among men, and 11.1% among women; 20.2% among individuals aged 65-69 years, 11.3% among 70-74, 10.0% among 75-79, and 8.3% among ≥ 80 years. Multivariable analysis showed that female sex, higher age, disadvantaged socio-economic status, and physical inactivity (p for trend < 0.001) were inversely related to being superheroes. People not smoking (adjusted odds ratio, aOR = 1.40), alcohol abstainers (aOR = 1.30), and those free from feelings of hopelessness (aOR = 5.92) more frequently met the definition of superheroes. During COVID-19 pandemic, the proportion of superheroes decreased by 16.3%. CONCLUSIONS Differences in the older adults' health status are largely attributable to their lifestyles but are also likely due to gender, educational, and socio-economic disparities, which should be properly addressed by public health policies.
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Affiliation(s)
- Silvano Gallus
- Department of Medical Epidemiology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy.
| | - Giansanto Mosconi
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Chiara Stival
- Department of Medical Epidemiology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Andrea Amerio
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Section of Psychiatry, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Guido Bertolini
- Department of Medical Epidemiology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Cristina Bosetti
- Department of Medical Epidemiology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | | | - Tiziana Fanucchi
- Unit of Health Promotion, Epidemiology, and Government of Territorial Demand, ASST Fatebenefratelli Sacco, Milan, Italy
| | - Licia Iacoviello
- Department of Medicine and Surgery, Research Center in Epidemiology and Preventive Medicine (EPIMED), University of Insubria, Varese, Italy
- Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
| | - Alessandra Lugo
- Department of Medical Epidemiology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - David Stuckler
- Department of Social and Political Sciences, Bocconi University, Milan, Italy
| | - Giacomo P Vigezzi
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
- Collegio Ca' della Paglia, Fondazione Ghislieri, 27100, Pavia, Italy
| | | | - Anna Odone
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
- School of Medicine, University Vita-Salute San Raffaele, Milan, Italy
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Neves VCM, Satie Okajima L, Elbahtety E, Joseph S, Daly J, Menon A, Fan D, Volkyte A, Mainas G, Fung K, Dhami P, Pelegrine AA, Sharpe P, Nibali L, Ide M. Repurposing Metformin for periodontal disease management as a form of oral-systemic preventive medicine. J Transl Med 2023; 21:655. [PMID: 37814261 PMCID: PMC10563330 DOI: 10.1186/s12967-023-04456-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/19/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND Despite the improvements in treatment over the last decades, periodontal disease (PD) affects millions of people around the world and the only treatment available is based on controlling microbial load. Diabetes is known to increase the risk of PD establishment and progression, and recently, glucose metabolism modulation by pharmaceutical or dietarian means has been emphasised as a significant modulator of non-communicable disease development. METHODS The impact of pharmaceutically controlling glucose metabolism in non-diabetic animals and humans (REBEC, UTN code: U1111-1276-1942) was investigated by repurposing Metformin, as a mean to manage periodontal disease and its associated systemic risk factors. RESULTS We found that glucose metabolism control via use of Metformin aimed at PD management resulted in significant prevention of bone loss during induced periodontal disease and age-related bone loss in vivo. Metformin also influenced the bacterial species present in the oral environment and impacted the metabolic epithelial and stromal responses to bacterial dysbiosis at a single cell level. Systemically, Metformin controlled blood glucose levels and age-related weight gain when used long-term. Translationally, our pilot randomized control trial indicated that systemic Metformin was safe to use in non-diabetic patients and affected the periodontal tissues. During the medication window, patients showed stable levels of systemic blood glucose, lower circulating hsCRP and lower insulin levels after periodontal treatment when compared to placebo. Finally, patients treated with Metformin had improved periodontal parameters when compared to placebo treated patients. CONCLUSION This is the first study to demonstrate that systemic interventions using Metformin in non-diabetic individuals aimed at PD prevention have oral-systemic effects constituting a possible novel form of preventive medicine for oral-systemic disease management.
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Affiliation(s)
- Vitor C M Neves
- Centre for Craniofacial and Regenerative Biology, FoDOCS, King's College London, London, UK.
- Periodontology Unit, Centre for Host-Microbiome Interactions, FoDOCS, King's College London, London, UK.
| | - Luciana Satie Okajima
- Department of Periodontology and Implantology, School of Dentistry, São Leopoldo Mandic, Campinas, Brazil
| | - Eyad Elbahtety
- Centre for Craniofacial and Regenerative Biology, FoDOCS, King's College London, London, UK
| | - Susan Joseph
- Periodontology Unit, Centre for Host-Microbiome Interactions, FoDOCS, King's College London, London, UK
| | - James Daly
- Centre for Craniofacial and Regenerative Biology, FoDOCS, King's College London, London, UK
| | - Athul Menon
- NIHR BRC Genomics Research Platform, Guy's and St Thomas' NHS Foundation Trust, King's College London School of Medicine, London, UK
| | - Di Fan
- Centre for Craniofacial and Regenerative Biology, FoDOCS, King's College London, London, UK
| | - Ayste Volkyte
- Periodontology Unit, Centre for Host-Microbiome Interactions, FoDOCS, King's College London, London, UK
| | - Giuseppe Mainas
- Periodontology Unit, Centre for Host-Microbiome Interactions, FoDOCS, King's College London, London, UK
| | - Kathy Fung
- NIHR BRC Genomics Research Platform, Guy's and St Thomas' NHS Foundation Trust, King's College London School of Medicine, London, UK
| | - Pawan Dhami
- NIHR BRC Genomics Research Platform, Guy's and St Thomas' NHS Foundation Trust, King's College London School of Medicine, London, UK
| | - Andre A Pelegrine
- Department of Periodontology and Implantology, School of Dentistry, São Leopoldo Mandic, Campinas, Brazil
| | - Paul Sharpe
- Centre for Craniofacial and Regenerative Biology, FoDOCS, King's College London, London, UK
- Institute of Animal Physiology and Genetics, Brno, Czech Republic
| | - Luigi Nibali
- Periodontology Unit, Centre for Host-Microbiome Interactions, FoDOCS, King's College London, London, UK
| | - Mark Ide
- Periodontology Unit, Centre for Host-Microbiome Interactions, FoDOCS, King's College London, London, UK
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36
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Colville A, Liu JY, Rodriguez-Mateo C, Thomas S, Ishak HD, Zhou R, Klein JDD, Morgens DW, Goshayeshi A, Salvi JS, Yao D, Spees K, Dixon SJ, Liu C, Rhee JW, Lai C, Wu JC, Bassik MC, Rando TA. Death-seq identifies regulators of cell death and senolytic therapies. Cell Metab 2023; 35:1814-1829.e6. [PMID: 37699398 PMCID: PMC10597643 DOI: 10.1016/j.cmet.2023.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/07/2023] [Accepted: 08/17/2023] [Indexed: 09/14/2023]
Abstract
Selectively ablating damaged cells is an evolving therapeutic approach for age-related disease. Current methods for genome-wide screens to identify genes whose deletion might promote the death of damaged or senescent cells are generally underpowered because of the short timescales of cell death as well as the difficulty of scaling non-dividing cells. Here, we establish "Death-seq," a positive-selection CRISPR screen optimized to identify enhancers and mechanisms of cell death. Our screens identified synergistic enhancers of cell death induced by the known senolytic ABT-263. The screen also identified inducers of cell death and senescent cell clearance in models of age-related diseases by a related compound, ABT-199, which alone is not senolytic but exhibits less toxicity than ABT-263. Death-seq enables the systematic screening of cell death pathways to uncover molecular mechanisms of regulated cell death subroutines and identifies drug targets for the treatment of diverse pathological states such as senescence, cancer, and fibrosis.
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Affiliation(s)
- Alex Colville
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Jie-Yu Liu
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Cristina Rodriguez-Mateo
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Samantha Thomas
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Heather D Ishak
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Ronghao Zhou
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Julian D D Klein
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - David W Morgens
- Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Armon Goshayeshi
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jayesh S Salvi
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - David Yao
- Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Kaitlyn Spees
- Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Scott J Dixon
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Chun Liu
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
| | - June-Wha Rhee
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
| | - Celine Lai
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
| | - Joseph C Wu
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
| | - Michael C Bassik
- Department of Genetics, Stanford University, Stanford, CA 94305, USA; Chemistry, Engineering, and Medicine for Human Health (ChEM-H), Stanford University, Stanford, CA 94305, USA
| | - Thomas A Rando
- Paul F. Glenn Center for the Biology of Aging and Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA; Center for Tissue Regeneration, Repair, and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA.
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Jones KT, Gallen CL, Ostrand AE, Rojas JC, Wais P, Rini J, Chan B, Lago AL, Boxer A, Zhao M, Gazzaley A, Zanto TP. Gamma neuromodulation improves episodic memory and its associated network in amnestic mild cognitive impairment: a pilot study. Neurobiol Aging 2023; 129:72-88. [PMID: 37276822 PMCID: PMC10583532 DOI: 10.1016/j.neurobiolaging.2023.04.005] [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: 09/06/2022] [Revised: 04/10/2023] [Accepted: 04/17/2023] [Indexed: 06/07/2023]
Abstract
Amnestic mild cognitive impairment (aMCI) is a predementia stage of Alzheimer's disease associated with dysfunctional episodic memory and limited treatment options. We aimed to characterize feasibility, clinical, and biomarker effects of noninvasive neurostimulation for aMCI. 13 individuals with aMCI received eight 60-minute sessions of 40-Hz (gamma) transcranial alternating current stimulation (tACS) targeting regions related to episodic memory processing. Feasibility, episodic memory, and plasma Alzheimer's disease biomarkers were assessed. Neuroplastic changes were characterized by resting-state functional connectivity (RSFC) and neuronal excitatory/inhibitory balance. Gamma tACS was feasible and aMCI participants demonstrated improvement in multiple metrics of episodic memory, but no changes in biomarkers. Improvements in episodic memory were most pronounced in participants who had the highest modeled tACS-induced electric fields and exhibited the greatest changes in RSFC. Increased RSFC was also associated with greater hippocampal excitability and higher baseline white matter integrity. This study highlights initial feasibility and the potential of gamma tACS to rescue episodic memory in an aMCI population by modulating connectivity and excitability within an episodic memory network.
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Affiliation(s)
- Kevin T Jones
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Neuroscape, University of California-San Francisco, San Francisco, CA.
| | - Courtney L Gallen
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Neuroscape, University of California-San Francisco, San Francisco, CA
| | - Avery E Ostrand
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Neuroscape, University of California-San Francisco, San Francisco, CA
| | - Julio C Rojas
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Weill Institute for Neurosciences, Memory and Aging Center, University of California-San Francisco, San Francisco, CA
| | - Peter Wais
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Neuroscape, University of California-San Francisco, San Francisco, CA
| | - James Rini
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Neuroscape, University of California-San Francisco, San Francisco, CA
| | - Brandon Chan
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Weill Institute for Neurosciences, Memory and Aging Center, University of California-San Francisco, San Francisco, CA
| | - Argentina Lario Lago
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Weill Institute for Neurosciences, Memory and Aging Center, University of California-San Francisco, San Francisco, CA
| | - Adam Boxer
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Weill Institute for Neurosciences, Memory and Aging Center, University of California-San Francisco, San Francisco, CA
| | - Min Zhao
- Departments of Ophthalmology and Vision Science and Dermatology, Institute for Regenerative Cures, University of California-Davis, Davis, CA
| | - Adam Gazzaley
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Neuroscape, University of California-San Francisco, San Francisco, CA; Departments of Physiology and Psychiatry, University of California-San Francisco, San Francisco, CA
| | - Theodore P Zanto
- Department of Neurology, University of California-San Francisco, San Francisco, CA; Neuroscape, University of California-San Francisco, San Francisco, CA.
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Villalobos TV, Ghosh B, DeLeo KR, Alam S, Ricaurte-Perez C, Wang A, Mercola BM, Butsch TJ, Ramos CD, Das S, Eymard ED, Bohnert KA, Johnson AE. Tubular lysosome induction couples animal starvation to healthy aging. NATURE AGING 2023; 3:1091-1106. [PMID: 37580394 PMCID: PMC10501908 DOI: 10.1038/s43587-023-00470-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 07/17/2023] [Indexed: 08/16/2023]
Abstract
Dietary restriction promotes longevity in several species via autophagy activation. However, changes to lysosomes underlying this effect remain unclear. Here using the nematode Caenorhabditis elegans, we show that the induction of autophagic tubular lysosomes (TLs), which occurs upon dietary restriction or mechanistic target of rapamycin inhibition, is a critical event linking reduced food intake to lifespan extension. We find that starvation induces TLs not only in affected individuals but also in well-fed descendants, and the presence of gut TLs in well-fed progeny is predictive of enhanced lifespan. Furthermore, we demonstrate that expression of Drosophila small VCP-interacting protein, a TL activator in flies, artificially induces TLs in well-fed worms and improves C. elegans health in old age. These findings identify TLs as a new class of lysosomes that couples starvation to healthy aging.
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Affiliation(s)
- Tatiana V Villalobos
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Bhaswati Ghosh
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Kathryn R DeLeo
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Sanaa Alam
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | | | - Andrew Wang
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Brennan M Mercola
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Tyler J Butsch
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Cara D Ramos
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Suman Das
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Eric D Eymard
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - K Adam Bohnert
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA.
| | - Alyssa E Johnson
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA.
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Milman S, Barzilai N. Discovering Biological Mechanisms of Exceptional Human Health Span and Life Span. Cold Spring Harb Perspect Med 2023; 13:a041204. [PMID: 37137499 PMCID: PMC10513160 DOI: 10.1101/cshperspect.a041204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Humans age at different rates and families with exceptional longevity provide an opportunity to understand why some people age slower than others. Unique features exhibited by centenarians include a family history of extended life span, compression of morbidity with resultant extension of health span, and longevity-associated biomarker profiles. These biomarkers, including low-circulating insulin-like growth factor 1 (IGF-1) and elevated high-density lipoprotein (HDL) cholesterol levels, are associated with functional genotypes that are enriched in centenarians, suggesting that they may be causative for longevity. While not all genetic discoveries from centenarians have been validated, in part due to exceptional life span being a rare phenotype in the general population, the APOE2 and FOXO3a genotypes have been confirmed in a number of populations with exceptional longevity. However, life span is now recognized as a complex trait and genetic research methods to study longevity are rapidly extending beyond classical Mendelian genetics to polygenic inheritance methodologies. Moreover, newer approaches are suggesting that pathways that have been recognized for decades to control life span in animals may also regulate life span in humans. These discoveries led to strategic development of therapeutics that may delay aging and prolong health span.
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Affiliation(s)
- Sofiya Milman
- Institute for Aging Research, Department of Medicine, Divisions of Endocrinology and Geriatrics, Department of Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Nir Barzilai
- Institute for Aging Research, Department of Medicine, Divisions of Endocrinology and Geriatrics, Department of Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA
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40
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Mao S, Su J, Wang L, Bo X, Li C, Chen H. A transcriptome-based single-cell biological age model and resource for tissue-specific aging measures. Genome Res 2023; 33:1381-1394. [PMID: 37524436 PMCID: PMC10547252 DOI: 10.1101/gr.277491.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 07/12/2023] [Indexed: 08/02/2023]
Abstract
Accurately measuring biological age is crucial for improving healthcare for the elderly population. However, the complexity of aging biology poses challenges in how to robustly estimate aging and interpret the biological significance of the traits used for estimation. Here we present SCALE, a statistical pipeline that quantifies biological aging in different tissues using explainable features learned from literature and single-cell transcriptomic data. Applying SCALE to the "Mouse Aging Cell Atlas" (Tabula Muris Senis) data, we identified tissue-level transcriptomic aging programs for more than 20 murine tissues and created a multitissue resource of mouse quantitative aging-associated genes. We observe that SCALE correlates well with other age indicators, such as the accumulation of somatic mutations, and can distinguish subtle differences in aging even in cells of the same chronological age. We further compared SCALE with other transcriptomic and methylation "clocks" in data from aging muscle stem cells, Alzheimer's disease, and heterochronic parabiosis. Our results confirm that SCALE is more generalizable and reliable in assessing biological aging in aging-related diseases and rejuvenating interventions. Overall, SCALE represents a valuable advancement in our ability to measure aging accurately, robustly, and interpretably in single cells.
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Affiliation(s)
- Shulin Mao
- Yuanpei College, Peking University, Beijing 100871, China
- Center for Bioinformatics, School of Life Sciences, Peking University, Beijing 100871, China
| | - Jiayu Su
- Center for Bioinformatics, School of Life Sciences, Peking University, Beijing 100871, China
- Department of Systems Biology, Columbia University, New York, New York 10032, USA
| | - Longteng Wang
- Center for Bioinformatics, School of Life Sciences, Peking University, Beijing 100871, China
- School of Life Sciences, Joint Graduate Program of Peking-Tsinghua-NIBS, Peking University, Beijing 100871, China
| | - Xiaochen Bo
- Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Cheng Li
- Center for Bioinformatics, School of Life Sciences, Peking University, Beijing 100871, China;
- Center for Statistical Science, Peking University, Beijing 100871, China
| | - Hebing Chen
- Institute of Health Service and Transfusion Medicine, Beijing 100850, China;
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41
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Plesa AM, Shadpour M, Boyden E, Church GM. Transcriptomic reprogramming for neuronal age reversal. Hum Genet 2023; 142:1293-1302. [PMID: 37004545 PMCID: PMC10066999 DOI: 10.1007/s00439-023-02529-1] [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: 01/05/2023] [Accepted: 01/24/2023] [Indexed: 04/04/2023]
Abstract
Aging is a progressive multifaceted functional decline of a biological system. Chronic age-related conditions such as neurodegenerative diseases are leading causes of death worldwide, and they are becoming a pressing problem for our society. To address this global challenge, there is a need for novel, safe, and effective rejuvenation therapies aimed at reversing age-related phenotypes and improving human health. With gene expression being a key determinant of cell identity and function, and in light of recent studies reporting rejuvenation effects through genetic perturbations, we propose an age reversal strategy focused on reprogramming the cell transcriptome to a youthful state. To this end, we suggest using transcriptomic data from primary human cells to predict rejuvenation targets and develop high-throughput aging assays, which can be used in large perturbation screens. We propose neural cells as particularly relevant targets for rejuvenation due to substantial impact of neurodegeneration on human frailty. Of all cell types in the brain, we argue that glutamatergic neurons, neuronal stem cells, and oligodendrocytes represent the most impactful and tractable targets. Lastly, we provide experimental designs for anti-aging reprogramming screens that will likely enable the development of neuronal age reversal therapies, which hold promise for dramatically improving human health.
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Affiliation(s)
- Alexandru M. Plesa
- Department of Genetics, Harvard Medical School, Boston, MA USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA USA
| | - Michael Shadpour
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA USA
- Department of Biological Engineering, MIT, Cambridge, MA USA
| | - Ed Boyden
- Department of Biological Engineering, MIT, Cambridge, MA USA
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA USA
- McGovern Institute for Brain Research, MIT, Cambridge, MA USA
- Howard Hughes Medical Institute, MIT, Cambridge, MA USA
| | - George M. Church
- Department of Genetics, Harvard Medical School, Boston, MA USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA USA
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42
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Galkin F, Kovalchuk O, Koldasbayeva D, Zhavoronkov A, Bischof E. Stress, diet, exercise: Common environmental factors and their impact on epigenetic age. Ageing Res Rev 2023; 88:101956. [PMID: 37211319 DOI: 10.1016/j.arr.2023.101956] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/23/2023]
Abstract
Epigenetic aging clocks have gained significant attention as a tool for predicting age-related health conditions in clinical and research settings. They have enabled geroscientists to study the underlying mechanisms of aging and assess the effectiveness of anti-aging therapies, including diet, exercise and environmental exposures. This review explores the effects of modifiable lifestyle factors' on the global DNA methylation landscape, as seen by aging clocks. We also discuss the underlying mechanisms through which these factors contribute to biological aging and provide comments on what these findings mean for people willing to build an evidence-based pro-longevity lifestyle.
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Affiliation(s)
| | - Olga Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Canada
| | | | - Alex Zhavoronkov
- Deep Longevity, Hong Kong; Insilico Medicine, Hong Kong; Buck Institute for Research on Aging, Novato, CA, USA
| | - Evelyne Bischof
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Department of Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China; Shanghai University of Medicine and Health Sciences, Shanghai, China; Division of Cardiology, Department of Advanced Biomedical Sciences, Federico II University, Via S. Pansini, 580131, Naples, Italy
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43
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Ruckstuhl MM, Bischof E, Blatch D, Buhayer A, Goldhahn J, Battegay E, Tichelli A, Ewald CY. Translational longevity medicine: a Swiss perspective in an ageing country. Swiss Med Wkly 2023; 153:40088. [PMID: 37410895 DOI: 10.57187/smw.2023.40088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023] Open
Abstract
Breakthroughs in medical research in the last century have led to a significant extension of the human lifespan, resulting in a shift towards an elderly population worldwide. Due to the ongoing progress of global development towards elevated standards of living, this study specifically examines Switzerland as a representative nation to explore the socioeconomic and healthcare ramifications associated with an ageing population, thereby highlighting the tangible impact experienced in this context. Beyond the exhaustion of pension funds and medical budgets, by reviewing the literature and analysing publicly available data, we observe a "Swiss Japanification". Old age is associated with late-life comorbidities and an increasing proportion of time spent in poor health. To address these problems, a paradigm shift in medical practice is needed to improve health rather than respond to existing diseases. Basic ageing research is gaining momentum to be translated into therapeutic interventions and provides machine learning tools driving longevity medicine. We propose that research focus on closing the translational gap between the molecular mechanisms of ageing and a more prevention-based medicine, which would help people age better and prevent late-life chronic diseases.
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Affiliation(s)
- Marco M Ruckstuhl
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, Switzerland
| | - Evelyne Bischof
- Shanghai University of Medicine and Health Sciences, Shanghai, China
- Department of Medical Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Dana Blatch
- International Center for Multimorbidity and Complexity in Medicine (ICMC), University of Zurich
| | - Aliki Buhayer
- International Center for Multimorbidity and Complexity in Medicine (ICMC), University of Zurich
- Prism Scientific Sàrl, Genève, Switzerland
| | - Jörg Goldhahn
- Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Switzerland
| | - Edouard Battegay
- International Center for Multimorbidity and Complexity in Medicine (ICMC), University of Zurich
- Department of Psychosomatic Medicine, Merian Iselin Klinik, Basel, Switzerland
| | - Andre Tichelli
- Division of Haematology, University Hospital Basel, Basel, Switzerland
| | - Collin Y Ewald
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, Switzerland
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Statzer C, Park JYC, Ewald CY. Extracellular Matrix Dynamics as an Emerging yet Understudied Hallmark of Aging and Longevity. Aging Dis 2023; 14:670-693. [PMID: 37191434 DOI: 10.14336/ad.2022.1116] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 11/16/2022] [Indexed: 05/17/2023] Open
Abstract
The biomechanical properties of extracellular matrices (ECM) and their consequences for cellular homeostasis have recently emerged as a driver of aging. Here we review the age-dependent deterioration of ECM in the context of our current understanding of the aging processes. We discuss the reciprocal interactions of longevity interventions with ECM remodeling. And the relevance of ECM dynamics captured by the matrisome and the matreotypes associated with health, disease, and longevity. Furthermore, we highlight that many established longevity compounds promote ECM homeostasis. A large body of evidence for the ECM to qualify as a hallmark of aging is emerging, and the data in invertebrates is promising. However, direct experimental proof that activating ECM homeostasis is sufficient to slow aging in mammals is lacking. We conclude that further research is required and anticipate that a conceptual framework for ECM biomechanics and homeostasis will provide new strategies to promote health during aging.
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Affiliation(s)
- Cyril Statzer
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach CH-8603, Switzerland
| | - Ji Young Cecilia Park
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach CH-8603, Switzerland
| | - Collin Y Ewald
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach CH-8603, Switzerland
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45
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Cong W, Wang Y, Yuan C, Xu M, Wang H, Hu Y, Dai X, Weng Y, Timashev P, Liang XJ, Huang Y. Dietary cobalt oxide nanoparticles alleviate aging through activation of mitochondrial UPR in Caenorhabditis elegans. Theranostics 2023; 13:3276-3289. [PMID: 37351160 PMCID: PMC10283066 DOI: 10.7150/thno.81817] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/21/2023] [Indexed: 06/24/2023] Open
Abstract
Mitochondrial unfolded protein response (UPRmt), which is a mitochondrial proteostasis pathway, orchestrates an adaptive reprogramming for metabolism homeostasis and organismal longevity. Similar to other defense systems, compromised UPRmt is a feature of several age-related diseases. Here we report that dimercapto succinic acid (DMSA)-modified cobalt oxide nanoparticles (Co3O4 NPs), which have received wide-spread attention in biomedical fields, is a promising UPRmt activator and, more importantly, provides a gate for extending healthy lifespan. Methods: UPRmt activation by Co3O4 NPs was tested in transgenetic Caenorhabditis elegans (C. elegans) specifically expressing UPRmt reporter Phsp-6::GFP, and the underlying mechanism was further validated by mitochondrial morphology, mtDNA/nDNA, metabolism-related genes' expression, mitonuclear protein imbalance, oyxgen assumption and ATP level in C. elegans. Then therapeutic response aganist senescence was monitored by lifespan analysis, lipofusin contents, MDA contents, Fe accumulation, pharyngeal locomotion performance as well as athletic ability (head thrashes and body bends) at different developmental stages of C. elegans. RNAi towards ubl-5 or atfs-1 in UPRmt pathway was applied to clarify the role of UPRmt in Co3O4 NPs -mediated anti-aging effects. Finally, the effect of Co3O4 NPs on mitochondrial homeostasis and D-galactose-induced cell viability decline in mammalian cells were studied. Results: Co3O4 NPs was revealed as a bona fide activator of the UPRmt signaling pathway, through fine-tuning mitochondrial dynamics and inducing a stoichiometric imbalance between OXPHOS subunits encoded by mitochondrial DNA (mtDNA) and nuclear DNA (nDNA) at early life stage of C. elegans. Phenotypically, Co3O4 NPs treatment protect C. elegans from external stresses. More importantly, dietary low level of Co3O4 NPs effectively extend lifespan and alleviate aging-related physiological and functional decline of worms, demonstrating its potential roles in delaying aging. While the protective effect exerted by Co3O4 NPs was compromised in line with atfs-1 or ubl-5 RNAi treatment. Further studies verified the conservation of Co3O4 NPs in activating UPRmt and exerting protective effects in mammalian cells. Conclusions: The results reveal beneficial effects of Co3O4 NPs on mitochondrial metabolic control, thus presenting their potential efficacy in anti-aging care.
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Affiliation(s)
- Wenshu Cong
- Advanced Research Institute of Multidisciplinary Science; School of Life Science; School of Medical Technology; Key Laboratory of Molecular Medicine and Biotherapy; Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering; Beijing Institute of Technology, Beijing 100081, P. R. China
- Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Yajie Wang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, P. R. China
| | - Chunhui Yuan
- Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Mei Xu
- Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Han Wang
- Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - You Hu
- Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Xuyan Dai
- Hunan Agricultural University, Changsha 410128, P. R. China
| | - Yuhua Weng
- Advanced Research Institute of Multidisciplinary Science; School of Life Science; School of Medical Technology; Key Laboratory of Molecular Medicine and Biotherapy; Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering; Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Peter Timashev
- Laboratory of Clinical Smart Nanotechnologies, Institute for Regenerative Medicine, Sechenov University, 119991 Moscow, Russia
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, P. R. China
| | - Yuanyu Huang
- Advanced Research Institute of Multidisciplinary Science; School of Life Science; School of Medical Technology; Key Laboratory of Molecular Medicine and Biotherapy; Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering; Beijing Institute of Technology, Beijing 100081, P. R. China
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46
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Okamoto S, Sakamoto H, Kamimura K, Komamura K, Kobayashi E, Liang J. Economic effects of healthy ageing: functional limitation, forgone wages, and medical and long-term care costs. HEALTH ECONOMICS REVIEW 2023; 13:28. [PMID: 37162614 PMCID: PMC10170784 DOI: 10.1186/s13561-023-00442-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 04/22/2023] [Indexed: 05/11/2023]
Abstract
This study aims to estimate the potential economic benefits of healthy ageing by obtaining estimates of the economic losses generated by functional limitations among middle-aged and older people. Utilising two data sources retrieved from nationally representative samples of the Japanese people, we analysed the association between functional limitation and economic indicators, including labour market outcomes, savings, investment, consumption, and unpaid activities among individuals aged ≥ 60. Using the estimated parameters from our micro-econometric analyses and the official statistics by the Japanese government and a previous study, we calculated the financial costs that can be averted if healthy ageing is achieved as foregone wages and formal medical/long-term care costs incurred by functional limitations. Our micro-econometric analyses found that functional limitation was associated with a 3% point increase in retirement probability, with a stronger association among those aged 60-69. Moreover, functional limitation was linked with higher total health spending and less active involvement in domestic work. Foregone wages generated by functional limitation were estimated to be approximately USD 266.4 million, driven mainly by individuals in their 60s. Long-term care costs, rather than medical care costs, for older people aged ≥ 85 accounted for most of the additional costs, indicating that the estimated medical and long-term costs generated by functional limitations were approximately USD 72.7 billion. Health interventions can yield economic benefits by preventing exits from the labour market due to health issues and reducing medical and long-term care costs.
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Affiliation(s)
- Shohei Okamoto
- Research Team for Social Participation and Healthy Aging, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakae- cho, Itabashi-ku, Tokyo, 1730015, Japan.
- Institute of Global Health Policy Research, National Centre for Global Health and Medicine, Tokyo, Japan.
- Research Center for Financial Gerontology, Keio University, Tokyo, Japan.
| | - Haruka Sakamoto
- Department of Hygiene and Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazuki Kamimura
- Research Center for Financial Gerontology, Keio University, Tokyo, Japan
- Hirao School of Management, Konan University, Hyogo, Japan
| | - Kohei Komamura
- Research Center for Financial Gerontology, Keio University, Tokyo, Japan
- Faculty of Economics, Keio University, Tokyo, Japan
| | - Erika Kobayashi
- Research Team for Social Participation and Healthy Aging, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakae- cho, Itabashi-ku, Tokyo, 1730015, Japan
| | - Jersey Liang
- Department of Health Management and Policy, School of Public Health, University of Michigan, Michigan, USA
- Department of Health Care Management and Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
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47
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Jones KT, Ostrand AE, Gazzaley A, Zanto TP. Enhancing cognitive control in amnestic mild cognitive impairment via at-home non-invasive neuromodulation in a randomized trial. Sci Rep 2023; 13:7435. [PMID: 37156876 PMCID: PMC10167304 DOI: 10.1038/s41598-023-34582-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 05/03/2023] [Indexed: 05/10/2023] Open
Abstract
Individuals with multi-domain amnestic mild cognitive impairment (md-aMCI) have an elevated risk of dementia and need interventions that may retain or remediate cognitive function. In a feasibility pilot study, 30 older adults aged 60-80 years with md-aMCI were randomized to 8 sessions of transcranial alternating current stimulation (tACS) with simultaneous cognitive control training (CCT). The intervention took place within the participant's home without direct researcher assistance. Half of the participants received prefrontal theta tACS during CCT and the other half received control tACS. We observed high tolerability and adherence for at-home tACS + CCT. Within 1-week, only those who received theta tACS exhibited improved attentional abilities. Neuromodulation is feasible for in-home settings, which can be conducted by the patient, thereby enabling treatment in difficult to reach populations. TACS with CCT may facilitate cognitive control abilities in md-aMCI, but research in a larger population is needed to validate efficacy.
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Affiliation(s)
- Kevin T Jones
- Department of Neurology, University of California-San Francisco, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA.
- Neuroscape, University of California-San Francisco, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA.
- Sandler Neurosciences Center, 675 Nelson Rising Lane, San Francisco, CA, 94158, USA.
| | - Avery E Ostrand
- Department of Neurology, University of California-San Francisco, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
- Neuroscape, University of California-San Francisco, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
| | - Adam Gazzaley
- Department of Neurology, University of California-San Francisco, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
- Neuroscape, University of California-San Francisco, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
- Departments of Physiology and Psychiatry, University of California-San Francisco, 675 18th St, San Francisco, CA, 94143, USA
| | - Theodore P Zanto
- Department of Neurology, University of California-San Francisco, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
- Neuroscape, University of California-San Francisco, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
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48
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Silva DF, Cavadas C. Primary cilia shape hallmarks of health and aging. Trends Mol Med 2023:S1471-4914(23)00071-0. [PMID: 37137787 DOI: 10.1016/j.molmed.2023.04.001] [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: 02/19/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 05/05/2023]
Abstract
Primary cilia are specialized organelles that sense changes in extracellular milieu, and their malfunction is responsible for several disorders (ciliopathies). Increasing evidence shows that primary cilia regulate tissue and cellular aging related features, which led us to review the evidence on their role in potentiating and/or accelerating the aging process. Primary cilia malfunction is associated with some age-related disorders, from cancer to neurodegenerative and metabolic disorders. However, there is limited understanding of molecular pathways underlying primary cilia dysfunction, resulting in scarce ciliary-targeted therapies available. Here, we discuss the findings on primary cilia dysfunction as modulators of the health and aging hallmarks, and the pertinence of ciliary pharmacological targeting to promote healthy aging or treat age-related diseases.
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Affiliation(s)
- Diana Filipa Silva
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Cláudia Cavadas
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Portugal.
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49
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Barnes PJ. Senotherapy for lung diseases. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2023; 98:249-271. [PMID: 37524489 DOI: 10.1016/bs.apha.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Increasing evidence suggests that there is acceleration of lung ageing in chronic lung diseases, such as chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF), with the accumulation of senescent cells in the lung. Senescent cells fail to repair tissue damage and release an array of inflammatory proteins, known as the senescence-associated secretory phenotype, which drive further senescence and disease progression. This suggests that targeting cellular senescence with senotherapies may treat the underlying disease process in COPD and IPF and thus reduce disease progression and mortality. Several existing or future drugs may inhibit the development of cellular senescence which is driven by chronic oxidative stress (senostatics), including inhibitors of PI3K-mTOR signalling pathways, antagomirs of critical microRNAs and novel antioxidants. Other drugs (senolytics) selectively remove senescent cells by promoting apoptosis. Clinical studies with senotherapies are already underway in chronic lung diseases.
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Affiliation(s)
- Peter J Barnes
- National Heart & Lung Institute, Imperial College London, United Kingdom.
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50
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Mavromatis LA, Rosoff DB, Bell AS, Jung J, Wagner J, Lohoff FW. Multi-omic underpinnings of epigenetic aging and human longevity. Nat Commun 2023; 14:2236. [PMID: 37076473 PMCID: PMC10115892 DOI: 10.1038/s41467-023-37729-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 03/28/2023] [Indexed: 04/21/2023] Open
Abstract
Biological aging is accompanied by increasing morbidity, mortality, and healthcare costs; however, its molecular mechanisms are poorly understood. Here, we use multi-omic methods to integrate genomic, transcriptomic, and metabolomic data and identify biological associations with four measures of epigenetic age acceleration and a human longevity phenotype comprising healthspan, lifespan, and exceptional longevity (multivariate longevity). Using transcriptomic imputation, fine-mapping, and conditional analysis, we identify 22 high confidence associations with epigenetic age acceleration and seven with multivariate longevity. FLOT1, KPNA4, and TMX2 are novel, high confidence genes associated with epigenetic age acceleration. In parallel, cis-instrument Mendelian randomization of the druggable genome associates TPMT and NHLRC1 with epigenetic aging, supporting transcriptomic imputation findings. Metabolomics Mendelian randomization identifies a negative effect of non-high-density lipoprotein cholesterol and associated lipoproteins on multivariate longevity, but not epigenetic age acceleration. Finally, cell-type enrichment analysis implicates immune cells and precursors in epigenetic age acceleration and, more modestly, multivariate longevity. Follow-up Mendelian randomization of immune cell traits suggests lymphocyte subpopulations and lymphocytic surface molecules affect multivariate longevity and epigenetic age acceleration. Our results highlight druggable targets and biological pathways involved in aging and facilitate multi-omic comparisons of epigenetic clocks and human longevity.
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Affiliation(s)
- Lucas A Mavromatis
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Daniel B Rosoff
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
- NIH-Oxford-Cambridge Scholars Program, University of Oxford, Oxford, UK
| | - Andrew S Bell
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Jeesun Jung
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Josephin Wagner
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Falk W Lohoff
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
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