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Tranah GJ, Barnes HN, Cawthon PM, Coen PM, Esser KA, Hepple RT, Huo Z, Kramer PA, Toledo FGS, Zhang X, Wu K, Wolff CA, Evans DS, Cummings SR. Expression of mitochondrial oxidative stress response genes in muscle is associated with mitochondrial respiration, physical performance, and muscle mass in the Study of Muscle, Mobility, and Aging. Aging Cell 2024; 23:e14114. [PMID: 38831629 PMCID: PMC11166362 DOI: 10.1111/acel.14114] [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: 11/04/2023] [Revised: 01/12/2024] [Accepted: 02/02/2024] [Indexed: 06/05/2024] Open
Abstract
Gene expression in skeletal muscle of older individuals may reflect compensatory adaptations in response to oxidative damage that preserve tissue integrity and maintain function. Identifying associations between oxidative stress response gene expression patterns and mitochondrial function, physical performance, and muscle mass in older individuals would further our knowledge of mechanisms related to managing molecular damage that may be targeted to preserve physical resilience. To characterize expression patterns of genes responsible for the oxidative stress response, RNA was extracted and sequenced from skeletal muscle biopsies collected from 575 participants (≥70 years old) from the Study of Muscle, Mobility, and Aging. Expression levels of 21 protein-coding RNAs related to the oxidative stress response were analyzed in relation to six phenotypic measures, including maximal mitochondrial respiration from muscle biopsies (Max OXPHOS), physical performance (VO2 peak, 400-m walking speed, and leg strength), and muscle size (thigh muscle volume and whole-body D3Cr muscle mass). The mRNA level of the oxidative stress response genes most consistently associated across outcomes are preferentially expressed within the mitochondria. Higher expression of mRNAs that encode generally mitochondria located proteins SOD2, TRX2, PRX3, PRX5, and GRX2 were associated with higher levels of mitochondrial respiration and VO2 peak. In addition, greater SOD2, PRX3, and GRX2 expression was associated with higher physical performance and muscle size. Identifying specific mechanisms associated with high functioning across multiple performance and physical domains may lead to targeted antioxidant interventions with greater impacts on mobility and independence.
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Affiliation(s)
- Gregory J. Tranah
- California Pacific Medical Center Research InstituteSan FranciscoCaliforniaUSA
- Department of Epidemiology and BiostatisticsUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Haley N. Barnes
- California Pacific Medical Center Research InstituteSan FranciscoCaliforniaUSA
| | - Peggy M. Cawthon
- California Pacific Medical Center Research InstituteSan FranciscoCaliforniaUSA
- Department of Epidemiology and BiostatisticsUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Paul M. Coen
- Translational Research InstituteAdvent HealthOrlandoFloridaUSA
| | - Karyn A. Esser
- Department of Physiology and Ageing, College of MedicineUniversity of FloridaGainesvilleFloridaUSA
| | - Russell T. Hepple
- Department of Physical TherapyUniversity of FloridaGainesvilleFloridaUSA
| | - Zhiguang Huo
- Department of Biostatistics, College of Public Health & Health ProfessionsCollege of Medicine University of FloridaGainesvilleFloridaUSA
| | - Philip A. Kramer
- Department of Internal Medicine‐Gerontology and Geriatric MedicineWake Forest University School of MedicineWinston‐SalemNorth CarolinaUSA
| | - Frederico G. S. Toledo
- Division of Endocrinology and Metabolism, Department of MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Xiping Zhang
- Department of Physiology and Ageing, College of MedicineUniversity of FloridaGainesvilleFloridaUSA
| | - Kevin Wu
- Department of Physiology and Ageing, College of MedicineUniversity of FloridaGainesvilleFloridaUSA
| | - Christopher A. Wolff
- Department of Physiology and Ageing, College of MedicineUniversity of FloridaGainesvilleFloridaUSA
| | - Daniel S. Evans
- California Pacific Medical Center Research InstituteSan FranciscoCaliforniaUSA
- Department of Epidemiology and BiostatisticsUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Steven R. Cummings
- California Pacific Medical Center Research InstituteSan FranciscoCaliforniaUSA
- Department of Epidemiology and BiostatisticsUniversity of California San FranciscoSan FranciscoCaliforniaUSA
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102
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Moses E, Atlan T, Sun X, Franěk R, Siddiqui A, Marinov GK, Shifman S, Zucker DM, Oron-Gottesman A, Greenleaf WJ, Cohen E, Ram O, Harel I. The killifish germline regulates longevity and somatic repair in a sex-specific manner. NATURE AGING 2024; 4:791-813. [PMID: 38750187 DOI: 10.1038/s43587-024-00632-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 04/10/2024] [Indexed: 05/22/2024]
Abstract
Classical evolutionary theories propose tradeoffs among reproduction, damage repair and lifespan. However, the specific role of the germline in shaping vertebrate aging remains largely unknown. In this study, we used the turquoise killifish (Nothobranchius furzeri) to genetically arrest germline development at discrete stages and examine how different modes of infertility impact life history. We first constructed a comprehensive single-cell gonadal atlas, providing cell-type-specific markers for downstream phenotypic analysis. We show here that germline depletion-but not arresting germline differentiation-enhances damage repair in female killifish. Conversely, germline-depleted males instead showed an extension in lifespan and rejuvenated metabolic functions. Through further transcriptomic analysis, we highlight enrichment of pro-longevity pathways and genes in germline-depleted male killifish and demonstrate functional conservation of how these factors may regulate longevity in germline-depleted Caenorhabditis elegans. Our results, therefore, demonstrate that different germline manipulation paradigms can yield pronounced sexually dimorphic phenotypes, implying alternative responses to classical evolutionary tradeoffs.
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Affiliation(s)
- Eitan Moses
- Department of Genetics, Silberman Institute, Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel
| | - Tehila Atlan
- Department of Genetics, Silberman Institute, Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel
| | - Xue Sun
- Department of Biochemistry, Silberman Institute, Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel
| | - Roman Franěk
- Department of Genetics, Silberman Institute, Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Vodnany, Czech Republic
| | - Atif Siddiqui
- Department of Biochemistry and Molecular Biology, Institute for Medical Research Israel-Canada (IMRIC), Hebrew University School of Medicine, Jerusalem, Israel
| | | | - Sagiv Shifman
- Department of Genetics, Silberman Institute, Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel
| | - David M Zucker
- Department of Statistics and Data Science, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Adi Oron-Gottesman
- Department of Genetics, Silberman Institute, Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel
| | - William J Greenleaf
- Department of Genetics, Stanford University, Stanford, CA, USA
- Center for Personal Dynamic Regulomes, Stanford University, Stanford, CA, USA
- Department of Applied Physics, Stanford University, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Ehud Cohen
- Department of Biochemistry and Molecular Biology, Institute for Medical Research Israel-Canada (IMRIC), Hebrew University School of Medicine, Jerusalem, Israel
| | - Oren Ram
- Department of Biochemistry, Silberman Institute, Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel
| | - Itamar Harel
- Department of Genetics, Silberman Institute, Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel.
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103
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Roig-Genoves JV, García-Giménez JL, Mena-Molla S. A miRNA-based epigenetic molecular clock for biological skin-age prediction. Arch Dermatol Res 2024; 316:326. [PMID: 38822910 PMCID: PMC11144124 DOI: 10.1007/s00403-024-03129-3] [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: 03/25/2024] [Revised: 04/27/2024] [Accepted: 05/02/2024] [Indexed: 06/03/2024]
Abstract
Skin aging is one of the visible characteristics of the aging process in humans. In recent years, different biological clocks have been generated based on protein or epigenetic markers, but few have focused on biological age in the skin. Arrest the aging process or even being able to restore an organism from an older to a younger stage is one of the main challenges in the last 20 years in biomedical research. We have implemented several machine learning models, including regression and classification algorithms, in order to create an epigenetic molecular clock based on miRNA expression profiles of healthy subjects to predict biological age-related to skin. Our best models are capable of classifying skin samples according to age groups (18-28; 29-39; 40-50; 51-60 or 61-83 years old) with an accuracy of 80% or predict age with a mean absolute error of 10.89 years using the expression levels of 1856 unique miRNAs. Our results suggest that this kind of epigenetic clocks arises as a promising tool with several applications in the pharmaco-cosmetic industry.
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Affiliation(s)
| | - José Luis García-Giménez
- Consortium Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, 46010, Spain
- INCLIVA Health Research Institute, INCLIVA, Valencia, 46010, Spain
- EpiDisease S.L (Spin-off from the CIBER-ISCIII), Parc Científic de la Universitat de Valencia, Paterna, 46980, Spain
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Spain
| | - Salvador Mena-Molla
- INCLIVA Health Research Institute, INCLIVA, Valencia, 46010, Spain.
- EpiDisease S.L (Spin-off from the CIBER-ISCIII), Parc Científic de la Universitat de Valencia, Paterna, 46980, Spain.
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Spain.
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104
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Cuschieri S. Exploring the determinants associated with adult mortality in Malta: A cohort study between 2014 and 2020. PUBLIC HEALTH IN PRACTICE 2024; 7:100500. [PMID: 38707676 PMCID: PMC11066676 DOI: 10.1016/j.puhip.2024.100500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 04/08/2024] [Accepted: 04/15/2024] [Indexed: 05/07/2024] Open
Abstract
Objective The study set to explore the mortality causes across six years and identify potential mortality determinates at a population level in Malta. Study design and methods A longitudinal follow-up of a Malta based cross-sectional national representative study across 6 years (2014-2020) was carried out. The study population was cross-linked to the mortality register and causes of death obtained. Population characteristics gathered during initial examination were analysed through univariant and multivariant logistic regressions. Results A total of 66 adults, mostly male (65.15 % n = 43) died, with commonest cause being cancer (42.42 % CI95 %: 31.24-54.45) mostly due to malignant neoplasm of bronchus and lung. This was followed by cardiac pathologies including acute myocardial infarction, ischaemic cardiomyopathy, and cardiomegaly (25.76 % CI95 %: 16.67-37.51). Multivariant logistic regression analyses revealed positive associations between age (OR: 1.99 p = 0.02), history of coronary heart disease (OR: 11.78 p=<0.001), smoking for 31 years or more (OR: 8.22 p=<0.001) and presence of multimorbidity (OR: 1.32 p = 0.02). Conclusion It is evident that occurrence of cancers is a concern in Malta, and it requires targeted action including the reduction of smoking habits. Understanding the mortality causes and the associated determining factors at a population level enable the institution of preventive actions while strengthening healthcare services to safeguard the population from premature mortality and co-morbidity.
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Affiliation(s)
- Sarah Cuschieri
- Faculty of Medicine and Surgery, University of Malta, RM 425 Biomedical Building, Msida, MSD2080, Malta
- Department of Epidemiology and Biostatistics, Western University, London, Canada
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105
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Lee MJC, Saner NJ, Ferri A, García-Domínguez E, Broatch JR, Bishop DJ. Delineating the contribution of ageing and physical activity to changes in mitochondrial characteristics across the lifespan. Mol Aspects Med 2024; 97:101272. [PMID: 38626488 DOI: 10.1016/j.mam.2024.101272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 04/18/2024]
Abstract
Ageing is associated with widespread physiological changes prominent within all tissues, including skeletal muscle and the brain, which lead to a decline in physical function. To tackle the growing health and economic burdens associated with an ageing population, the concept of healthy ageing has become a major research priority. Changes in skeletal muscle mitochondrial characteristics have been suggested to make an important contribution to the reductions in skeletal muscle function with age, and age-related changes in mitochondrial content, respiratory function, morphology, and mitochondrial DNA have previously been reported. However, not all studies report changes in mitochondrial characteristics with ageing, and there is increasing evidence to suggest that physical activity (or inactivity) throughout life is a confounding factor when interpreting age-associated changes. Given that physical activity is a potent stimulus for inducing beneficial adaptations to mitochondrial characteristics, delineating the influence of physical activity on the changes in skeletal muscle that occur with age is complicated. This review aims to summarise our current understanding and knowledge gaps regarding age-related changes to mitochondrial characteristics within skeletal muscle, as well as to provide some novel insights into brain mitochondria, and to propose avenues of future research and targeted interventions. Furthermore, where possible, we incorporate discussions of the modifying effects of physical activity, exercise, and training status, to purported age-related changes in mitochondrial characteristics.
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Affiliation(s)
- Matthew J-C Lee
- The Exercise Prescription Lab (EPL), Institute for Health and Sport (IHES), Victoria University, Melbourne, Victoria, Australia
| | - Nicholas J Saner
- The Exercise Prescription Lab (EPL), Institute for Health and Sport (IHES), Victoria University, Melbourne, Victoria, Australia
| | - Alessandra Ferri
- The Exercise Prescription Lab (EPL), Institute for Health and Sport (IHES), Victoria University, Melbourne, Victoria, Australia
| | - Esther García-Domínguez
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia; Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia and CIBERFES, Fundación Investigación Hospital Clínico Universitario/INCLIVA, Valencia, Spain
| | - James R Broatch
- The Exercise Prescription Lab (EPL), Institute for Health and Sport (IHES), Victoria University, Melbourne, Victoria, Australia
| | - David J Bishop
- The Exercise Prescription Lab (EPL), Institute for Health and Sport (IHES), Victoria University, Melbourne, Victoria, Australia.
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106
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Garcia DN, Hense JD, Zanini BM, Isola JVV, Prosczek JB, Ashiqueali S, Oliveira TL, Mason JB, Schadock IC, Barros CC, Stout MB, Masternak MM, Schneider A. Senolytic treatment fails to improve ovarian reserve or fertility in female mice. GeroScience 2024; 46:3445-3455. [PMID: 38358579 PMCID: PMC11009191 DOI: 10.1007/s11357-024-01089-0] [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: 12/26/2023] [Accepted: 02/03/2024] [Indexed: 02/16/2024] Open
Abstract
Senescent cell number increases with age in different tissues, leading to greater senescent cell load, proinflammatory stress, and tissue dysfunction. In the current study, we tested the efficacy of senolytic drugs to reduce ovarian senescence and improve fertility in reproductive age female mice. In the first experiment, 1-month-old C57BL/6 female mice were treated every other week with D + Q (n = 24) or placebo (n = 24). At 3 and 6 months of age, female mice were mated with untreated males to evaluate pregnancy rate and litter size. In the second experiment, 6-month-old C57BL/6 female mice were treated monthly with D + Q (n = 30), fisetin (n = 30), or placebo (n = 30). Females were treated once a month until 11 months of age, then they were mated with untreated males for 30 days to evaluate pregnancy rate and litter size. In the first experiment, D + Q treatment did not affect pregnancy rate (P = 0.68), litter size (P = 0.58), or ovarian reserve (P > 0.05). Lipofuscin staining was lower in females treated with D + Q (P = 0.04), but expression of senescence genes in ovaries was similar. In the second experiment, D + Q or fisetin treatment also did not affect pregnancy rate (P = 0.37), litter size (P = 0.20), or ovarian reserve (P > 0.05). Lipofuscin staining (P = 0.008) and macrophage infiltration (P = 0.002) was lower in fisetin treated females. Overall, treatment with D + Q or fisetin did not affect ovarian reserve or fertility but did decrease some senescence markers in the ovary.
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Affiliation(s)
- Driele N Garcia
- Faculdade de Nutrição, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 - Sala 239, Pelotas, RS, CEP 96010-610, Brazil
| | - Jessica D Hense
- Faculdade de Nutrição, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 - Sala 239, Pelotas, RS, CEP 96010-610, Brazil
| | - Bianka M Zanini
- Faculdade de Nutrição, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 - Sala 239, Pelotas, RS, CEP 96010-610, Brazil
| | - Jose V V Isola
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Juliane B Prosczek
- Faculdade de Nutrição, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 - Sala 239, Pelotas, RS, CEP 96010-610, Brazil
| | - Sarah Ashiqueali
- College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
| | - Thais L Oliveira
- Centro de Biotecnologia, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Jeffrey B Mason
- College of Veterinary Medicine, Department of Veterinary Clinical and Life Sciences, Center for Integrated BioSystems, Utah State University, Logan, UT, USA
| | - Ines C Schadock
- Experimental Toxicology Department, German Institute for Risk Assessment, Berlin, Germany
| | - Carlos C Barros
- Faculdade de Nutrição, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 - Sala 239, Pelotas, RS, CEP 96010-610, Brazil
| | - Michael B Stout
- College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
| | - Michal M Masternak
- College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
- Department of Head and Neck Surgery, Poznan University of Medical Sciences, Poznan, Poland
| | - Augusto Schneider
- Faculdade de Nutrição, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 - Sala 239, Pelotas, RS, CEP 96010-610, Brazil.
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107
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Liu X, Axelsson GT, Newman AB, Psaty BM, Boudreau RM, Wu C, Arnold AM, Aspelund T, Austin TR, Gardin JM, Siggeirsdottir K, Tracy RP, Gerszten RE, Launer LJ, Jennings LL, Gudnason V, Sanders JL, Odden MC. Plasma proteomic signature of human longevity. Aging Cell 2024; 23:e14136. [PMID: 38440820 PMCID: PMC11166369 DOI: 10.1111/acel.14136] [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: 10/24/2023] [Revised: 02/06/2024] [Accepted: 02/11/2024] [Indexed: 03/06/2024] Open
Abstract
The identification of protein targets that exhibit anti-aging clinical potential could inform interventions to lengthen the human health span. Most previous proteomics research has been focused on chronological age instead of longevity. We leveraged two large population-based prospective cohorts with long follow-ups to evaluate the proteomic signature of longevity defined by survival to 90 years of age. Plasma proteomics was measured using a SOMAscan assay in 3067 participants from the Cardiovascular Health Study (discovery cohort) and 4690 participants from the Age Gene/Environment Susceptibility-Reykjavik Study (replication cohort). Logistic regression identified 211 significant proteins in the CHS cohort using a Bonferroni-adjusted threshold, of which 168 were available in the replication cohort and 105 were replicated (corrected p value <0.05). The most significant proteins were GDF-15 and N-terminal pro-BNP in both cohorts. A parsimonious protein-based prediction model was built using 33 proteins selected by LASSO with 10-fold cross-validation and validated using 27 available proteins in the validation cohort. This protein model outperformed a basic model using traditional factors (demographics, height, weight, and smoking) by improving the AUC from 0.658 to 0.748 in the discovery cohort and from 0.755 to 0.802 in the validation cohort. We also found that the associations of 169 out of 211 proteins were partially mediated by physical and/or cognitive function. These findings could contribute to the identification of biomarkers and pathways of aging and potential therapeutic targets to delay aging and age-related diseases.
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Affiliation(s)
- Xiaojuan Liu
- Department of Epidemiology and Population HealthStanford University School of MedicineStanfordCaliforniaUSA
| | - Gisli Thor Axelsson
- Faculty of MedicineUniversity of IcelandReykjavikIceland
- Icelandic Heart AssociationKopavogurIceland
| | - Anne B. Newman
- Department of EpidemiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Bruce M. Psaty
- Cardiovascular Health Research Unit, Department of MedicineUniversity of WashingtonSeattleWashingtonUSA
- Cardiovascular Health Research Unit, Department of EpidemiologyUniversity of WashingtonSeattleWashingtonUSA
- Cardiovascular Health Research Unit, Department of Health Systems and Population HealthUniversity of WashingtonSeattleWashingtonUSA
| | - Robert M. Boudreau
- Department of EpidemiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Chenkai Wu
- Global Health Research CenterDuke Kunshan UniversityKunshanChina
| | - Alice M. Arnold
- Department of BiostatisticsUniversity of WashingtonSeattleWashingtonUSA
| | - Thor Aspelund
- Faculty of MedicineUniversity of IcelandReykjavikIceland
- Icelandic Heart AssociationKopavogurIceland
| | - Thomas R. Austin
- Department of EpidemiologyUniversity of WashingtonSeattleWashingtonUSA
| | - Julius M. Gardin
- Division of Cardiology, Department of MedicineRutgers New Jersey Medical SchoolNewarkNew JerseyUSA
| | | | - Russell P. Tracy
- Department of Pathology and Laboratory Medicine, The Robert Larner M.D. College of MedicineUniversity of VermontBurlingtonVermontUSA
- Department of Biochemistry, The Robert Larner M.D. College of MedicineUniversity of VermontBurlingtonVermontUSA
| | - Robert E. Gerszten
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Lenore J. Launer
- Laboratory of Epidemiology and Population Sciences, Intramural Research ProgramNational Institute on AgingBethesdaMarylandUSA
| | | | - Vilmundur Gudnason
- Faculty of MedicineUniversity of IcelandReykjavikIceland
- Icelandic Heart AssociationKopavogurIceland
| | | | - Michelle C. Odden
- Department of Epidemiology and Population HealthStanford University School of MedicineStanfordCaliforniaUSA
- Geriatric Research Education and Clinical CenterVA Palo Alto Health Care SystemPalo AltoCaliforniaUSA
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108
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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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Hemagirri M, Chen Y, Gopinath SCB, Sahreen S, Adnan M, Sasidharan S. Crosstalk between protein misfolding and endoplasmic reticulum stress during ageing and their role in age-related disorders. Biochimie 2024; 221:159-181. [PMID: 37918463 DOI: 10.1016/j.biochi.2023.10.019] [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: 07/31/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
Maintaining the proteome is crucial to retaining cell functionality and response to multiple intrinsic and extrinsic stressors. Protein misfolding increased the endoplasmic reticulum (ER) stress and activated the adaptive unfolded protein response (UPR) to restore cell homeostasis. Apoptosis occurs when ER stress is prolonged or the adaptive response fails. In healthy young cells, the ratio of protein folding machinery to quantities of misfolded proteins is balanced under normal circumstances. However, the age-related deterioration of the complex systems for handling protein misfolding is accompanied by ageing-related disruption of protein homeostasis, which results in the build-up of misfolded and aggregated proteins. This ultimately results in decreased cell viability and forms the basis of common age-related diseases called protein misfolding diseases. Proteins or protein fragments convert from their ordinarily soluble forms to insoluble fibrils or plaques in many of these disorders, which build up in various organs such as the liver, brain, or spleen. Alzheimer's, Parkinson's, type II diabetes, and cancer are diseases in this group commonly manifest in later life. Thus, protein misfolding and its prevention by chaperones and different degradation paths are becoming understood from molecular perspectives. Proteodynamics information will likely affect future interventional techniques to combat cellular stress and support healthy ageing by avoiding and treating protein conformational disorders. This review provides an overview of the diverse proteostasis machinery, protein misfolding, and ER stress involvement, which activates the UPR sensors. Here, we will discuss the crosstalk between protein misfolding and ER stress and their role in developing age-related diseases.
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Affiliation(s)
- Manisekaran Hemagirri
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, USM, 11800, Pulau Pinang, Malaysia
| | - Yeng Chen
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Subash C B Gopinath
- Faculty of Chemical Engineering and Technology, Universiti Malaysia Perlis, Arau, 02600, Malaysia
| | - Sumaira Sahreen
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, USM, 11800, Pulau Pinang, Malaysia
| | - Mohd Adnan
- Department of Biology, College of Science, University of Ha'il, Ha'il, P. O. Box 2440, Saudi Arabia.
| | - Sreenivasan Sasidharan
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, USM, 11800, Pulau Pinang, Malaysia.
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111
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Saad EE, Michel R, Borahay MA. Senescence-associated secretory phenotype (SASP) and uterine fibroids: Association with PD-L1 activation and collagen deposition. Ageing Res Rev 2024; 97:102314. [PMID: 38670462 PMCID: PMC11181954 DOI: 10.1016/j.arr.2024.102314] [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: 12/21/2023] [Revised: 04/10/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
Uterine fibroids (or uterine leiomyoma, UFs) are one of the most prevalent benign uterine tumors with high proliferation and collagen synthesis capabilities. UFs are a significant worldwide health issue for women, affecting their physical and financial well-being. Risk factors for UFs include age, racial disparities, obesity, uterine infections, hormonal variation, and lifestyle (i.e., diet, exercise, stress, and smoking). Senescence and its associated secretory phenotypes (SASPs) are among the most salient changes accompanying the aging process. As a result, SASPs are suggested to be one of the major contributors to developing UFs. Interleukin 6 (IL-6), IL-8, IL-1, chemokine ligand 20 (CCL-20), and transforming growth factor-beta (TGF-β) are the most prominent SASPs associated with aging. In addition, different processes contribute to UFs such as collagen deposition and the changes in the immune microenvironment. Programmed death ligand 1 is a major player in the tumor immune microenvironment, which helps tumor cells evade immune attacks. This review focuses on the correlation of SASPs on two axes of tumor progression: immune suppression and collagen deposition. This review opens the door towards more investigations regarding changes in the UF immune microenvironment and age-UFs correlation and thus, a novel targeting approach for UF treatment.
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Affiliation(s)
- Eslam E Saad
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Rachel Michel
- Department of Population, Family, and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, MD 21205, USA
| | - Mostafa A Borahay
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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112
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Gürel S, Pak EN, Tek NA. Aging Processes Are Affected by Energy Balance: Focused on the Effects of Nutrition and Physical Activity on Telomere Length. Curr Nutr Rep 2024; 13:264-279. [PMID: 38498288 PMCID: PMC11133118 DOI: 10.1007/s13668-024-00529-9] [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] [Accepted: 03/01/2024] [Indexed: 03/20/2024]
Abstract
PURPOSE OF REVIEW The number and proportion of individuals aged 60 and over are increasing globally. The increase in the elderly population has important social and economic effects. Telomere length is an important marker for healthy aging. Here, we review the relevance between telomere length and energy balance by determining the effects of physical activity, nutrients, dietary patterns, and foods on healthy aging and telomere length with related studies. RECENT FINDINGS Evidence emphasizes the importance of telomere length and integrity for healthy aging. It also focuses on the importance of potential interventions such as physical activity and a healthy diet to improve this process. We suggest that ensuring energy balance with regular physical activity and healthy diets can contribute to the aging process by protecting telomere length. In addition, different methods in studies, short and inconsistent durations, different types of exercise, different diet patterns, and non-standard foods have led to conflicting results. More studies are needed to elucidate molecular-based mechanisms.
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Affiliation(s)
- Satı Gürel
- Department of Nutrition and Dietetics, Faculty of Health Science, Trakya University, 22030, Edirne, Turkey
| | - Elif Nisa Pak
- Department of Nutrition and Dietetics, Faculty of Health Science, Kilis 7 Aralık University, 79000, Kilis, Turkey.
| | - Nilüfer Acar Tek
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, 06490, Ankara, Turkey
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113
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Ewald CY, Pulous FE, Lok SWY, Pun FW, Aliper A, Ren F, Zhavoronkov A. TNIK's emerging role in cancer, metabolism, and age-related diseases. Trends Pharmacol Sci 2024; 45:478-489. [PMID: 38777670 DOI: 10.1016/j.tips.2024.04.010] [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: 03/09/2024] [Revised: 04/12/2024] [Accepted: 04/28/2024] [Indexed: 05/25/2024]
Abstract
Traf2- and Nck-interacting kinase (TNIK) has emerged as a key regulator of pathological metabolic signaling in several diseases and is a promising drug target. Originally studied for its role in cell migration and proliferation, TNIK possesses several newly identified functions that drive the pathogenesis of multiple diseases. Specifically, we evaluate TNIK's newfound roles in cancer, metabolic disorders, and neuronal function. We emphasize the implications of TNIK signaling in metabolic signaling and evaluate the translational potential of these discoveries. We also highlight how TNIK's role in many biological processes converges upon several hallmarks of aging. We conclude by discussing the therapeutic landscape of TNIK-targeting drugs and the recent success of clinical trials targeting TNIK.
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Affiliation(s)
- Collin Y Ewald
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach CH-8603, Switzerland
| | - Fadi E Pulous
- Insilico Medicine US Inc., 345 Park Avenue South, 2nd Floor Suite 006, New York, NY 10010, USA
| | - Sarah Wing Yan Lok
- Insilico Medicine Hong Kong Ltd., Unit 310, 3/F, Building 8W, Hong Kong Science and Technology Park, Hong Kong, SAR, China
| | - Frank W Pun
- Insilico Medicine Hong Kong Ltd., Unit 310, 3/F, Building 8W, Hong Kong Science and Technology Park, Hong Kong, SAR, China
| | - Alex Aliper
- Insilico Medicine AI Limited, Level 6, Unit 08, Block A, IRENA HQ Building, Masdar City, Abu Dhabi, UAE
| | - Feng Ren
- Insilico Medicine Shanghai Ltd., Suite 902, Tower C, Changtai Plaza, 2889 Jinke Road, Pudong, Shanghai 201203, China
| | - Alex Zhavoronkov
- Insilico Medicine US Inc., 345 Park Avenue South, 2nd Floor Suite 006, New York, NY 10010, USA; Insilico Medicine Hong Kong Ltd., Unit 310, 3/F, Building 8W, Hong Kong Science and Technology Park, Hong Kong, SAR, China; Insilico Medicine AI Limited, Level 6, Unit 08, Block A, IRENA HQ Building, Masdar City, Abu Dhabi, UAE; Insilico Medicine Shanghai Ltd., Suite 902, Tower C, Changtai Plaza, 2889 Jinke Road, Pudong, Shanghai 201203, China; Buck Institute for Research on Aging, Novato, CA 94945, USA.
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114
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Islam MA, Sehar U, Sultana OF, Mukherjee U, Brownell M, Kshirsagar S, Reddy PH. SuperAgers and centenarians, dynamics of healthy ageing with cognitive resilience. Mech Ageing Dev 2024; 219:111936. [PMID: 38657874 DOI: 10.1016/j.mad.2024.111936] [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: 03/08/2024] [Revised: 04/08/2024] [Accepted: 04/16/2024] [Indexed: 04/26/2024]
Abstract
Graceful healthy ageing and extended longevity is the most desired goal for human race. The process of ageing is inevitable and has a profound impact on the gradual deterioration of our physiology and health since it triggers the onset of many chronic conditions like dementia, osteoporosis, diabetes, arthritis, cancer, and cardiovascular disease. However, some people who lived/live more than 100 years called 'Centenarians" and how do they achieve their extended lifespans are not completely understood. Studying these unknown factors of longevity is important not only to establish a longer human lifespan but also to manage and treat people with shortened lifespans suffering from age-related morbidities. Furthermore, older adults who maintain strong cognitive function are referred to as "SuperAgers" and may be resistant to risk factors linked to cognitive decline. Investigating the mechanisms underlying their cognitive resilience may contribute to the development of therapeutic strategies that support the preservation of cognitive function as people age. The key to a long, physically, and cognitively healthy life has been a mystery to scientists for ages. Developments in the medical sciences helps us to a better understanding of human physiological function and greater access to medical care has led us to an increase in life expectancy. Moreover, inheriting favorable genetic traits and adopting a healthy lifestyle play pivotal roles in promoting longer and healthier lives. Engaging in regular physical activity, maintaining a balanced diet, and avoiding harmful habits such as smoking contribute to overall well-being. The synergy between positive lifestyle choices, access to education, socio-economic factors, environmental determinants and genetic supremacy enhances the potential for a longer and healthier life. Our article aims to examine the factors associated with healthy ageing, particularly focusing on cognitive health in centenarians. We will also be discussing different aspects of ageing including genomic instability, metabolic burden, oxidative stress and inflammation, mitochondrial dysfunction, cellular senescence, immunosenescence, and sarcopenia.
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Affiliation(s)
- Md Ariful Islam
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Ujala Sehar
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Omme Fatema Sultana
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Upasana Mukherjee
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Malcolm Brownell
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Sudhir Kshirsagar
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA; Public Health Department of Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Speech, Language and Hearing Sciences, School Health Professions, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Neurology, Departments of School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Nutritional Sciences Department, College of Human Sciences, Texas Tech University, 1301 Akron Ave, Lubbock, TX 79409, USA.
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115
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Huang S, Zhang W, Xuan S, Si H, Huang D, Ba M, Qi D, Pei X, Lu D, Li Z. Chronic sleep deprivation impairs retinal circadian transcriptome and visual function. Exp Eye Res 2024; 243:109907. [PMID: 38649019 DOI: 10.1016/j.exer.2024.109907] [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: 02/07/2024] [Revised: 04/07/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
Sleep loss is common in modern society and is increasingly associated with eye diseases. However, the precise effects of sleep loss on retinal structure and function, particularly on the retinal circadian system, remain largely unexplored. This study investigates these effects using a chronic sleep deprivation (CSD) model in mice. Our investigation reveals that CSD significantly alters the retinal circadian transcriptome, leading to remarkable changes in the temporal patterns of enriched pathways. This perturbation extends to metabolic and immune-related transcriptomes, coupled with an accumulation of reactive oxygen species in the retina. Notably, CSD rhythmically affects the thickness of the ganglion cell complex, along with diurnal shifts in microglial migration and morphology within the retina. Most critically, we observe a marked decrease in both scotopic and photopic retinal function under CSD conditions. These findings underscore the broad impact of sleep deprivation on retinal health, highlighting its role in altering circadian gene expression, metabolism, immune response, and structural integrity. Our study provides new insights into the broader impact of sleep loss on retinal health.
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Affiliation(s)
- Shenzhen Huang
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China; Department of Ophthalmology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Wenxiao Zhang
- Department of Ophthalmology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Shuting Xuan
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongli Si
- Department of Ophthalmology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Duliurui Huang
- Department of Ophthalmology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Mengru Ba
- Department of Ophthalmology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Di Qi
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaoting Pei
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Dingli Lu
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhijie Li
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China; Department of Ophthalmology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China.
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116
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Siddiqui N, Sharma A, Kesharwani A, Anurag, Parihar VK. Exploring role of natural compounds in molecular alterations associated with brain ageing: A perspective towards nutrition for ageing brain. Ageing Res Rev 2024; 97:102282. [PMID: 38548242 DOI: 10.1016/j.arr.2024.102282] [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: 08/30/2023] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 04/12/2024]
Abstract
Aging refers to complete deterioration of physiological integrity and function. By midcentury, adults over 60 years of age and children under 15 years will begin to outnumber people in working age. This shift will bring multiple global challenges for economy, health, and society. Eventually, aging is a natural process playing a vital function in growth and development during pediatric stage, maturation during adult stage, and functional depletion. Tissues experience negative consequences with enhanced genomic instability, deregulated nutrient sensing, mitochondrial dysfunction, and decline in performance on cognitive tasks. As brain ages, its volume decreases, neurons & glia get inflamed, vasculature becomes less developed, blood pressure increases with a risk of stroke, ischemia, and cognitive deficits. Diminished cellular functions leads to progressive reduction in functional and emotional capacity with higher possibility of disease and finally death. This review overviews cellular as well as molecular aspects of aging, biological pathway related to accelerated brain aging, and strategies minimizing cognitive aging. Age-related changes include altered bioenergetics, decreased neuroplasticity and flexibility, aberrant neural activity, deregulated Ca2+ homeostasis in neurons, buildup of reactive oxygen species, and neuro-inflammation. Unprecedented progress has been achieved in recent studies, particularly in terms of how herbal or natural substances affect genetic pathways and biological functions that have been preserved through evolution. Herein, the present work provides an overview of ageing and age-related disorders and explore the molecular mechanisms that underlie therapeutic effects of herbal and natural chemicals on neuropathological signs of brain aging.
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Affiliation(s)
- Nazia Siddiqui
- Department of Pharmaceutical Technology, MIET, Meerut 250005, India
| | - Alok Sharma
- Department of Pharmaceutical Technology, MIET, Meerut 250005, India.
| | - Anuradha Kesharwani
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur 844102, India
| | - Anurag
- Department of Pharmaceutical Technology, MIET, Meerut 250005, India
| | - Vipan Kumar Parihar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur 844102, India.
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117
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Park SH, Lee DH, Lee DH, Jung CH. Scientific evidence of foods that improve the lifespan and healthspan of different organisms. Nutr Res Rev 2024; 37:169-178. [PMID: 37469212 DOI: 10.1017/s0954422423000136] [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: 07/21/2023]
Abstract
Age is a risk factor for numerous diseases. Although the development of modern medicine has greatly extended the human lifespan, the duration of relatively healthy old age, or 'healthspan', has not increased. Targeting the detrimental processes that can occur before the onset of age-related diseases can greatly improve health and lifespan. Healthspan is significantly affected by what, when and how much one eats. Dietary restriction, including calorie restriction, fasting or fasting-mimicking diets, to extend both lifespan and healthspan has recently attracted much attention. However, direct scientific evidence that consuming specific foods extends the lifespan and healthspan seems lacking. Here, we synthesized the results of recent studies on the lifespan and healthspan extension properties of foods and their phytochemicals in various organisms to confirm how far the scientific research on the effect of food on the lifespan has reached.
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Affiliation(s)
- So-Hyun Park
- Aging and Metabolism Research Group, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, South Korea
| | - Da-Hye Lee
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Dae-Hee Lee
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung, Gangwon-do, South Korea
| | - Chang Hwa Jung
- Aging and Metabolism Research Group, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, South Korea
- Department of Food Biotechnology, University of Science and Technology, Wanju-gun, Jeollabuk-do, South Korea
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118
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Izadi M, Sadri N, Abdi A, Zadeh MMR, Jalaei D, Ghazimoradi MM, Shouri S, Tahmasebi S. Longevity and anti-aging effects of curcumin supplementation. GeroScience 2024; 46:2933-2950. [PMID: 38409646 PMCID: PMC11009219 DOI: 10.1007/s11357-024-01092-5] [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] [Accepted: 02/03/2024] [Indexed: 02/28/2024] Open
Abstract
Aging is a gradual and irreversible process that is accompanied by an overall decline in cellular function and a significant increase in the risk of age-associated disorders. Generally, delaying aging is a more effective method than treating diseases associated with aging. Currently, researchers are focused on natural compounds and their therapeutic and health benefits. Curcumin is the main active substance that is present in turmeric, a spice that is made up of the roots and rhizomes of the Curcuma longa plant. Curcumin demonstrated a positive impact on slowing down the aging process by postponing age-related changes. This compound may have anti-aging properties by changing levels of proteins involved in the aging process, such as sirtuins and AMPK, and inhibiting pro-aging proteins, such as NF-κB and mTOR. In clinical research, this herbal compound has been extensively examined in terms of safety, efficacy, and pharmacokinetics. There are numerous effects of curcumin on mechanisms related to aging and human diseases, so we discuss many of them in detail in this review.
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Affiliation(s)
- Mehran Izadi
- Department of Infectious and Tropical Diseases, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Synapse Laboratory Diagnostic Technologies Accelerator, Tehran, Iran
- Department of Research & Technology, Zeenome Longevity Research Institute, Tehran, Iran
| | - Nariman Sadri
- Synapse Laboratory Diagnostic Technologies Accelerator, Tehran, Iran
- Department of Research & Technology, Zeenome Longevity Research Institute, Tehran, Iran
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amirhossein Abdi
- Synapse Laboratory Diagnostic Technologies Accelerator, Tehran, Iran
- Department of Research & Technology, Zeenome Longevity Research Institute, Tehran, Iran
- School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahdi Raeis Zadeh
- Synapse Laboratory Diagnostic Technologies Accelerator, Tehran, Iran
- Department of Research & Technology, Zeenome Longevity Research Institute, Tehran, Iran
- School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Dorsa Jalaei
- Synapse Laboratory Diagnostic Technologies Accelerator, Tehran, Iran
- Department of Research & Technology, Zeenome Longevity Research Institute, Tehran, Iran
- School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohammad Mahdi Ghazimoradi
- Synapse Laboratory Diagnostic Technologies Accelerator, Tehran, Iran
- Department of Research & Technology, Zeenome Longevity Research Institute, Tehran, Iran
- School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Shouri
- Synapse Laboratory Diagnostic Technologies Accelerator, Tehran, Iran
- Department of Research & Technology, Zeenome Longevity Research Institute, Tehran, Iran
- School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Safa Tahmasebi
- Synapse Laboratory Diagnostic Technologies Accelerator, Tehran, Iran.
- Department of Research & Technology, Zeenome Longevity Research Institute, Tehran, Iran.
- Student Research Committee, Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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119
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Guimond AJ, Ke S, Tworoger SS, Huang T, Chan AT, Kubzansky LD, Liu YY. Fulfilled Mind, Healthy Gut? Relationships of Eudaimonic Psychological Well-Being With the Gut Microbiome in Postmenopausal Women. Psychosom Med 2024; 86:398-409. [PMID: 38345311 PMCID: PMC11142870 DOI: 10.1097/psy.0000000000001278] [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] [Indexed: 02/20/2024]
Abstract
OBJECTIVE Eudaimonic facets of psychological well-being (PWB), like purpose in life and sense of mastery, are associated with healthy aging. Variation in the gut microbiome may be one pathway by which mental health influences age-related health outcomes. However, associations between eudaimonic PWB and the gut microbiome are understudied. We examined whether purpose in life and sense of mastery, separately, were associated with features of the gut microbiome in older women. METHODS Participants were from the Mind-Body Study ( N = 206, mean age = 61 years), a substudy of the Nurses' Health Study II cohort. In 2013, participants completed the Life Engagement Test and the Pearlin Mastery Scale. Three months later, up to two pairs of stool samples were collected, 6 months apart. Covariates included sociodemographics, depression, health status, and health behaviors. Analyses examined associations of PWB with gut microbiome taxonomic diversity, overall community structure, and specific species/pathways. To account for multiple testing, statistical significance was established using Benjamini-Hochberg adjusted p values (i.e., q values ≤0.25). RESULTS We found no evidence of an association between PWB and gut microbiome alpha diversity. In multivariate analysis, higher purpose levels were significantly associated with lower abundance of species previously linked with poorer health outcomes, notably Blautia hydrogenotrophica and Eubacterium ventriosum ( q values ≤0.25). No significant associations were found between PWB and metabolic pathways. CONCLUSIONS These findings offer early evidence suggesting that eudaimonic PWB is linked with variation in the gut microbiome, and this might be one pathway by which PWB promotes healthy aging.
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Affiliation(s)
- Anne-Josee Guimond
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
- Lee Kum Sheung Center for Health and Happiness, Harvard T. H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA
| | - Shanlin Ke
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Shelley S. Tworoger
- Department of Cancer Epidemiology, Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Tianyi Huang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Andrew T. Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Laura D. Kubzansky
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
- Lee Kum Sheung Center for Health and Happiness, Harvard T. H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA
| | - Yang-Yu Liu
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, 02115, USA
- Center for Artificial Intelligence and Modeling, The Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Champaign, IL 61801, USA
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120
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Allahverdi H. Exploring the therapeutic potential of plasma from intermittent fasting and untreated rats on aging-induced liver damage. J Cell Mol Med 2024; 28:e18456. [PMID: 38923278 PMCID: PMC11199341 DOI: 10.1111/jcmm.18456] [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: 01/08/2024] [Revised: 04/21/2024] [Accepted: 05/16/2024] [Indexed: 06/28/2024] Open
Abstract
This research aims to investigate the effects of plasma from 12-month-old intermittently fasting rats (IFpls) and untreated rats (Npls) on the liver biomolecules and histological changes in 24-month-old male Sprague-Dawley rats. Fasting rats underwent an 18-h daily fasting period and a 6-h feeding window for 35 days. The plasma was administered bi-daily, and blood samples were examined for specific liver biomolecules. Fourier transform infrared (FTIR) spectroscopy and linear discriminant analysis (LDA) was used to identify molecular profiles. Liver sections were stained for histopathological evaluation, and the expression levels of Notch signalling pathway components were assessed. Distinct molecular profiles were identified across liver biomolecules, lipids, proteins and nucleic acids with high accuracy. Notably, IFpls was found to protect against hepatic instability, microvesicular steatosis and liver fibrosis by decreasing lymphatic infiltration density and Notch pathway expression levels. Both treatments reduced protein oxidation and carbonylation, with Npls showing a pronounced decrease in protein oxidation. Furthermore, Npls increased protein conformation and glycogen/phosphate content, while IFpls increased glucose/protein content. Both IFpls and Npls induce substantial and unique alterations in liver biomolecules. IFpls offers a protective effect on various liver conditions, while Npls exhibits promising results in reducing protein oxidation and altering biomolecule content. These findings offer valuable insights for future research and potential therapeutic approaches.
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Affiliation(s)
- Hüseyin Allahverdi
- Department of Molecular Biology and GeneticsMuş Alparslan UniversityMuşTurkey
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Boccardi V. Sarcopenia: A dive into metabolism to promote a multimodal, preventive, and regenerative approach. Mech Ageing Dev 2024; 219:111941. [PMID: 38750969 DOI: 10.1016/j.mad.2024.111941] [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: 04/25/2024] [Revised: 05/07/2024] [Accepted: 05/11/2024] [Indexed: 05/20/2024]
Abstract
Sarcopenia, the age-related loss of skeletal muscle mass and function, poses a significant challenge in the field of geriatrics and gerontology, impacting the health and independence of older adults. Understanding and addressing sarcopenia is crucial for optimizing clinical outcomes and enhancing the quality of life along with aging. By synthesizing current research findings and theoretical frameworks, this review elucidates the multifaceted mechanisms underlying sarcopenia, mainly focusing on energy balance and metabolic processes. Furthermore, the manuscript explores the implications of sarcopenia on overall health outcomes, functional decline, and quality of life in older individuals. The study concludes with a perspective on the role of preventive and regenerative medicine in sarcopenia, where the two main lifestyle pillars (exercise and diet) represent key factors.
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Affiliation(s)
- Virginia Boccardi
- Division of Gerontology and Geriatrics. Department of Medicine and Surgery, University of Perugia, Perugia, Italy.
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Lima MCDAM, Zazula MF, Martins LF, Carvalhal SR, Guimarães ATB, Fernandes LC, Naliwaiko K. How soon do metabolic alterations and oxidative distress precede the reduction of muscle mass and strength in Wistar rats in aging process? Biogerontology 2024; 25:491-506. [PMID: 38064115 DOI: 10.1007/s10522-023-10078-3] [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: 12/19/2022] [Accepted: 10/30/2023] [Indexed: 06/01/2024]
Abstract
Here we investigate metabolic changes, the antioxidant system and the accumulation of oxidative damage in muscles with different fiber types during the aging process in Wistar rats and try to map how sooner the changes occur. To do so, 30 male Wistar rats were submitted to behavioral evaluation to determine voluntary strength in the 11, 15, and 19 month old rats, measuring the energy metabolism, antioxidant system, oxidative damage and structure in the soleus and extensor digitorum longus muscles. We detected structural and metabolic changes in both muscles, especially in the EDL of 15 month old rats and in the soleus of 19 month old rats. In the 15 month old rats, there was a reduction in the cross-sectional area of the fibers, and a reduction in the proportion of type I fibers, accompanied by an increase in fiber density and the amount of type IIA fibers. This change in the fiber profile was followed by an increase in the activity of anaerobic metabolism enzymes, suggesting a reduction in the oxidative capacity of the muscle. In addition, there was an increase in the rate of lipid peroxidation, accompanied by a reduced antioxidant capacity. In the 19 month old rats, these disturbances got stronger. In summary, the present study demonstrated that before functional disturbances, there was an accumulation of oxidative damage and structural changes in the skeletal muscle beginning at 15 months old in the EDL and the soleus only in the biochemical parameters. Therefore, the metabolic alterations occurred at 15 months old and not before.
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Affiliation(s)
- Malu Cristina de Araújo Montoro Lima
- Laboratório de Plasticidade Morfofuncional, Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco Heráclito dos Santos, 100, Jardim das Américas, Curitiba, PR, 81530-900, Brazil
| | - Matheus Felipe Zazula
- Laboratório de Plasticidade Morfofuncional, Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco Heráclito dos Santos, 100, Jardim das Américas, Curitiba, PR, 81530-900, Brazil
| | - Luiz Fernando Martins
- Laboratório de Plasticidade Morfofuncional, Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco Heráclito dos Santos, 100, Jardim das Américas, Curitiba, PR, 81530-900, Brazil
| | - Stephanie Rubiane Carvalhal
- Laboratório de Metabolismo Celular, Departamento de Fisiologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco Heráclito dos Santos, 100, Jardim das Américas, Curitiba, PR, 81530-900, Brazil
| | - Ana Tereza Bittencourt Guimarães
- Laboratório de Investigações Biológicas, Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Rua Universitária, 1619, Jardim Universitário, Cascavel, PR, 85819-110, Brazil
| | - Luiz Claudio Fernandes
- Laboratório de Metabolismo Celular, Departamento de Fisiologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco Heráclito dos Santos, 100, Jardim das Américas, Curitiba, PR, 81530-900, Brazil
| | - Katya Naliwaiko
- Laboratório de Plasticidade Morfofuncional, Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco Heráclito dos Santos, 100, Jardim das Américas, Curitiba, PR, 81530-900, Brazil.
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Farina MP, Klopack ET, Umberson D, Crimmins EM. The embodiment of parental death in early life through accelerated epigenetic aging: Implications for understanding how parental death before 18 shapes age-related health risk among older adults. SSM Popul Health 2024; 26:101648. [PMID: 38596364 PMCID: PMC11002886 DOI: 10.1016/j.ssmph.2024.101648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/25/2024] [Accepted: 02/27/2024] [Indexed: 04/11/2024] Open
Abstract
Parental death in early life has been linked to various adverse health outcomes in older adulthood. This study extends prior research to evaluate how parental death in early life is tied to accelerated epigenetic aging, a potentially important biological mechanism from which social and environmental exposures impact age-related health. We used data from the 2016 Venous Blood Study (VBS), a component of the Health and Retirement Study (HRS), to examine the association between parental death in early life and accelerated epigenetic aging as measured by three widely used epigenetic clocks (PCPhenoAge, PCGrimAge, and DunedinPACE). We also assessed whether some of the association is explained by differences in educational attainment, depressive symptoms, and smoking behavior. Methods included a series of linear regression models and formal mediation analysis. Findings indicated that parental death in early life is associated with accelerated epigenetic aging for PCPhenoAge and DunedinPACE. The inclusion of educational attainment, depressive symptoms, and smoking behavior attenuated this association, with formal mediation analysis providing additional support for these observations. Parental death in early life may be one of the most difficult experiences an individual may face. The elevated biological risk associated with parental death in early life may operate through immediate changes but also through more downstream risk factors. This study highlights how early life adversity can set in motion biological changes that have lifelong consequences.
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Affiliation(s)
- Mateo P. Farina
- Department of Human Development and Family Sciences, University of Texas at Austin, United States
- Population Research Center, University of Texas at Austin, United States
| | - Eric T. Klopack
- Davis School of Gerontology, University of Southern California, United States
| | - Debra Umberson
- Population Research Center, University of Texas at Austin, United States
- Department of Sociology, University of Texas at Austin, United States
| | - Eileen M. Crimmins
- Davis School of Gerontology, University of Southern California, United States
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Wang M, Han Y, Yao X, Duan X, Wan J, Lou X, Yan Y, Zheng P, Wang F, Zhu L, Ni C, Pan Z, Wang Z, Chen L, Wang Z, Qin Z. Hyperexpression of tumor necrosis factor receptor 2 inhibits differentiation of myeloid-derived suppressor cells by instigating apolarity during ageing. MedComm (Beijing) 2024; 5:e605. [PMID: 38868328 PMCID: PMC11167233 DOI: 10.1002/mco2.605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 04/09/2024] [Accepted: 05/08/2024] [Indexed: 06/14/2024] Open
Abstract
During the ageing process, TNF-α can promote the expansion of myeloid-derived suppressor cells (MDSCs). However, it remains unclear which receptor(s) of TNF-α are involved in and how they modulate this process. Here, we report that TNFR2 hyperexpression induced by either TNF-α or IL-6, two proinflammatory factors of senescence-associated secretory phenotype (SASP), causes cellular apolarity and differentiation inhibition in aged MDSCs. Ex vivo overexpression of TNFR2 in young MDSCs inhibited their polarity and differentiation, whereas in vivo depletion of Tnfr2 in aged MDSCs promotes their differentiation. Consequently, the age-dependent increase of TNFR2 versus unaltered TNFR1 expression in aged MDSCs significantly shifts the balance of TNF-α signaling toward the TNFR2-JNK axis, which accounts for JNK-induced impairment of cell polarity and differentiation failure of aged MDSCs. Consistently, inhibiting JNK attenuates apolarity and partially restores the differentiation capacity of aged MDSCs, suggesting that upregulated TNFR2/JNK signaling is a key factor limiting MDSC differentiation during organismal ageing. Therefore, abnormal hyperexpression of TNFR2 represents a general mechanism by which extrinsic SASP signals disrupt intrinsic cell polarity behavior, thereby arresting mature differentiation of MDSCs with ageing, suggesting that TNFR2 could be a potential therapeutic target for intervention of ageing through rejuvenation of aged MDSCs.
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Affiliation(s)
- Ming Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Yijie Han
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Xiaohan Yao
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Xixi Duan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Jiajia Wan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Xiaohan Lou
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Yan Yan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Peiguo Zheng
- Clinical Laboratorythe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Fazhan Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Linyu Zhu
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Zhenzhen Pan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Zihao Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Lin Chen
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
| | - Zhaoqing Wang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenanChina
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of BiophysicsChinese Academy of SciencesBeijingChina
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Geng H, Huang C, Xu L, Zhou Y, Dong Z, Zhong Y, Li Q, Yang C, Huang S, Liao W, Lin Y, Liu Z, Li Q, Zhang Z, Zhu C. Targeting cellular senescence as a therapeutic vulnerability in gastric cancer. Life Sci 2024; 346:122631. [PMID: 38621585 DOI: 10.1016/j.lfs.2024.122631] [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: 12/29/2023] [Revised: 03/17/2024] [Accepted: 04/10/2024] [Indexed: 04/17/2024]
Abstract
AIMS Cellular senescence (CS) represents an intracellular defense mechanism responding to stress signals and can be leveraged as a "vulnerability" in cancer treatment. This study aims to construct a CS atlas for gastric cancer (GC) and uncover potential therapeutics for GC patients. MATERIALS AND METHODS 38 senescence-associated regulators with prognostic significance in GC were obtained from the CellAge database to construct Gastric cancer-specific Senescence Score (GSS). Using eXtreme Sum algorism, GSS-based drug repositioning was conducted to identify drugs that could antagonize GSS in CMap database. In vitro experiments were conducted to test the effect of combination of palbociclib and exisulind in eliminating GC cells. KEY FINDINGS Patients with high GSS exhibited CS-related features, such as CS markers upregulation, adverse clinical outcomes and hypomethylation status. scRNA-seq data showed malignant cells with high GSS exhibited enhanced senescence state and more immunosuppressive signals such as PVR-CD96 compared with malignant cells with low GSS. In addition, the GSS-High cancer associated fibroblasts might secrete cytokines and chemokines such as IL-6, CXCL1, CXCL12, and CCL2 to from an immunosuppressive microenvironment, and GSS could serve as an indicator for immunotherapy resistance. Exisulind exhibited the greatest potential to reverse GSS. In vitro experiments demonstrated that exisulind could induce apoptosis and suppress the proliferation of palbociclib-induced senescent GC cells. SIGNIFICANCE Overall, GSS offers a framework for better understanding of correlation between senescence and GC, which might provide new insights into the development of novel therapeutics in GC.
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Affiliation(s)
- Haigang Geng
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chen Huang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Xu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China
| | - Yangyang Zhou
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Zhongyi Dong
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yiqing Zhong
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Li
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chen Yang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China; Immune Regulation in Cancer Group, German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - Shaozhuo Huang
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD Rotterdam, the Netherlands
| | - Weixin Liao
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Yuxuan Lin
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhicheng Liu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China
| | - Qing Li
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Zizhen Zhang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Chunchao Zhu
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Ott C. Mapping the interplay of immunoproteasome and autophagy in different heart failure phenotypes. Free Radic Biol Med 2024; 218:149-165. [PMID: 38570171 DOI: 10.1016/j.freeradbiomed.2024.03.026] [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: 02/06/2024] [Revised: 03/25/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Proper protein degradation is required for cellular protein homeostasis and organ function. Particularly, in post-mitotic cells, such as cardiomyocytes, unbalanced proteolysis due to inflammatory stimuli and oxidative stress contributes to organ dysfunction. To ensure appropriate protein turnover, eukaryotic cells exert two main degradation systems, the ubiquitin-proteasome-system and the autophagy-lysosome-pathway. It has been shown that proteasome activity affects the development of cardiac dysfunction differently, depending on the type of heart failure. Studies analyzing the inducible subtype of the proteasome, the immunoproteasome (i20S), demonstrated that the i20S plays a double role in diseased hearts. While i20S subunits are increased in cardiac hypertrophy, atrial fibrillation and partly in myocarditis, the opposite applies to diabetic cardiomyopathy and ischemia/reperfusion injury. In addition, the i20S appears to play a role in autophagy modulation depending on heart failure phenotype. This review summarizes the current literature on the i20S in different heart failure phenotypes, emphasizing the two faces of i20S in injured hearts. A selection of established i20S inhibitors is introduced and signaling pathways linking the i20S to autophagy are highlighted. Mapping the interplay of the i20S and autophagy in different types of heart failure offers potential approaches for developing treatment strategies against heart failure.
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Affiliation(s)
- Christiane Ott
- German Institute of Human Nutrition Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany.
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Zonari A, Brace LE, Harder NHO, Harker C, Oliveira CR, Boroni M, Carvalho JL. Double-blind, vehicle-controlled clinical investigation of peptide OS-01 for skin rejuvenation. J Cosmet Dermatol 2024; 23:2135-2144. [PMID: 38400612 DOI: 10.1111/jocd.16242] [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: 08/02/2023] [Revised: 01/05/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
INTRODUCTION Senescent cells contribute to age-related tissue deterioration, including the skin, which plays important roles in overall health and social interactions. This study aimed to assess the effects of the senotherapeutic peptide, OS-01 (a.k.a. Pep 14), on skin. METHODS A 12-week split-face, double-blinded, vehicle-controlled study involving 22 participants was conducted. The OS-01-containing formulation was applied to one side of the face, while the other side received an identical control formulation lacking the peptide. Skin characteristics were assessed using instrumental measurements, expert clinical grading, and subjective questionnaires. RESULTS Results showed that the OS-01 formulation significantly improved one aspect of skin barrier function, as evidenced by reduced trans-epidermal water loss compared to both baseline and vehicle control. Expert grading and Antera 3D image analysis revealed a reduction in wrinkle appearance and indentation in the periorbital area, and improved skin texture and radiance on both sides of the face, with the OS-01-containing formulation demonstrating superior results. Participants also perceived improvements in skin hydration, smoothness, radiance, and overall appearance. CONCLUSION The findings suggest that the OS-01 formulation promotes skin health by strengthening the skin barrier, protecting against dehydration, reducing the appearance of wrinkles, and improving skin texture and radiance. These effects are likely attributed to the senotherapeutic properties of OS-01 in reducing cellular senescence and its associated detrimental effects.
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Affiliation(s)
| | | | | | | | | | - Mariana Boroni
- Bioinformatics and Computational Biology Lab, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Juliana L Carvalho
- Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasília, Brazil
- Laboratory of Interdisciplinary Biosciences, Faculty of Medicine, University of Brasília, Brasília, Brazil
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Bourassa KJ, Halverson TF, Garrett ME, Hair L, Dennis M, Ashley-Koch AE, Beckham JC, Kimbrel NA. Demographic characteristics and epigenetic biological aging among post-9/11 veterans: Associations of DunedinPACE with sex, race, and age. Psychiatry Res 2024; 336:115908. [PMID: 38626626 PMCID: PMC11070289 DOI: 10.1016/j.psychres.2024.115908] [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: 02/05/2024] [Revised: 04/01/2024] [Accepted: 04/06/2024] [Indexed: 04/18/2024]
Abstract
Measures of epigenetic aging derived from DNA methylation (DNAm) have enabled the assessment of biological aging in new populations and cohorts. In the present study, we used an epigenetic measure of aging, DunedinPACE, to examine rates of aging across demographic groups in a sample of 2,309 United States military veterans from the VISN 6 MIRECC's Post-Deployment Mental Health Study. As assessed by DunedinPACE, female veterans were aging faster than male veterans (β = 0.39, 95 % CI [0.29, 0.48], p < .001), non-Hispanic Black veterans were aging faster than non-Hispanic White veterans (β = 0.58, 95 % CI [0.50, 0.66], p < .001), and older veterans were biologically aging faster than younger veterans (β = 0.21, 95 % CI [0.18, 0.25], p < .001). In secondary analyses, these differences in rates of aging were not explained by a variety of biopsychosocial covariates. In addition, the percentage of European genetic admixture in non-Hispanic Black veterans was not associated with DunedinPACE. Our findings suggest that female and non-Hispanic Black veterans are at greater risk of accelerated aging among post-9/11 veterans. Interventions that slow aging might provide relatively greater benefit among veterans comprising these at-risk groups.
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Affiliation(s)
- Kyle J Bourassa
- VA Mid-Atlantic Mental Illness Research, Education and Clinical Center, Durham VA Health Care System; Geriatric Research, Education, and Clinical Center, Durham VA Health Care System; Center for the Study of Aging and Human Development, Duke University Medical Center.
| | - Tate F Halverson
- VA Mid-Atlantic Mental Illness Research, Education and Clinical Center, Durham VA Health Care System
| | | | - Lauren Hair
- VA Mid-Atlantic Mental Illness Research, Education and Clinical Center, Durham VA Health Care System; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine
| | - Michelle Dennis
- VA Mid-Atlantic Mental Illness Research, Education and Clinical Center, Durham VA Health Care System; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine
| | | | - Jean C Beckham
- VA Mid-Atlantic Mental Illness Research, Education and Clinical Center, Durham VA Health Care System; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine
| | - Nathan A Kimbrel
- VA Mid-Atlantic Mental Illness Research, Education and Clinical Center, Durham VA Health Care System; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine; VA Health Services Research and Development Center of Innovation to Accelerate Discovery and Practice Transformation, Durham VA Health Care System
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Wang J, Zou J, Shi Y, Zeng N, Guo D, Wang H, Zhao C, Luan F, Zhang X, Sun J. Traditional Chinese medicine and mitophagy: A novel approach for cardiovascular disease management. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155472. [PMID: 38461630 DOI: 10.1016/j.phymed.2024.155472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/06/2024] [Accepted: 02/20/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Cardiovascular disease (CVD) remains the leading cause of morbidity and mortality worldwide, imposing an enormous economic burden on individuals and human society. Laboratory studies have identified several drugs that target mitophagy for the prevention and treatment of CVD. Only a few of these drugs have been successful in clinical trials, and most studies have been limited to animal and cellular models. Furthermore, conventional drugs used to treat CVD, such as antiplatelet agents, statins, and diuretics, often result in adverse effects on patients' cardiovascular, metabolic, and respiratory systems. In contrast, traditional Chinese medicine (TCM) has gained significant attention for its unique theoretical basis and clinical efficacy in treating CVD. PURPOSE This paper systematically summarizes all the herbal compounds, extracts, and active monomers used to target mitophagy for the treatment of CVD in the last five years. It provides valuable information for researchers in the field of basic cardiovascular research, pharmacologists, and clinicians developing herbal medicines with fewer side effects, as well as a useful reference for future mitophagy research. METHODS The search terms "cardiovascular disease," "mitophagy," "herbal preparations," "active monomers," and "cardiac disease pathogenesis" in combination with "natural products" and "diseases" were used to search for studies published in the past five years until January 2024. RESULTS Studies have shown that mitophagy plays a significant role in the progression and development of CVD, such as atherosclerosis (AS), heart failure (HF), myocardial infarction (MI), myocardial ischemia/reperfusion injury (MI/RI), cardiac hypertrophy, cardiomyopathy, and arrhythmia. Herbal compound preparations, crude extracts, and active monomers have shown potential as effective treatments for these conditions. These substances protect cardiomyocytes by inducing mitophagy, scavenging damaged mitochondria, and maintaining mitochondrial homeostasis. They display notable efficacy in combating CVD. CONCLUSION TCM (including herbal compound preparations, extracts, and active monomers) can treat CVD through various pharmacological mechanisms and signaling pathways by inducing mitophagy. They represent a hotspot for future cardiovascular basic research and a promising candidate for the development of future cardiovascular drugs with fewer side effects and better therapeutic efficacy.
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Affiliation(s)
- Jinhui Wang
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China
| | - Junbo Zou
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China
| | - Yajun Shi
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China
| | - Nan Zeng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, PR China
| | - Dongyan Guo
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China
| | - He Wang
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China
| | - Chongbo Zhao
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China
| | - Fei Luan
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China.
| | - Xiaofei Zhang
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China.
| | - Jing Sun
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi, PR China.
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130
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Zong Y, Yang Y, Zhao J, Li L, Luo D, Hu J, Gao Y, Xie X, Shen L, Chen S, Ning L, Jiang L. Identification of key mitochondria-related genes and their relevance to the immune system linking Parkinson's disease and primary Sjögren's syndrome through integrated bioinformatics analyses. Comput Biol Med 2024; 175:108511. [PMID: 38677173 DOI: 10.1016/j.compbiomed.2024.108511] [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: 10/15/2023] [Revised: 04/14/2024] [Accepted: 04/21/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Mitochondria are the metabolic hubs of cells, regulating energy production and antigen presentation, which are essential for activation, proliferation, and function of immune cells. Recent evidence indicates that mitochondrial antigen presentation may have an impact on diseases such as Parkinson's disease (PD) and autoimmune diseases. However, there is limited knowledge about the mechanisms that regulate the presentation of mitochondrial antigens in these diseases. METHODS In the current study, RNA sequencing was performed on labial minor salivary gland (LSG) from 25 patients with primary Sjögren's syndrome (pSS) and 14 non-pSS aged controls. Additionally, we obtained gene expression omnibus datasets associated with PD patients from NCBI Gene Expression Omnibus (GEO) databases. Single-sample Gene Set Enrichment Analysis (ssGSEA), ESTIMATE and Spearman correlations were conducted to explore the association between mitochondrial related genes and the immune system. Furthermore, we applied weighted Gene Co-expression Network Analysis (WGCNA) to identify hub mitochondria-related genes and investigate the correlated networks in both diseases. Single cell transcriptome analysis, immunohistochemical (IHC) staining and quantitative real-time PCR (qRT-PCR) were used to verify the activation of the hub mitochondria-related pathway. Pearson correlations and the CIBERSORT algorithms were employed to further reveal the correlation between hub mitochondria-related pathways and immune infiltration. RESULTS The transcriptome analysis revealed the presence of overlapping mitochondria-related genes and mitochondrial DNA damage in patients with pSS and PD. Reactive oxygen species (ROS), the senescence marker p53, and the inflammatory markers CD45 and Bcl-2 were found to be regionally distributed in LSGs of pSS patients. WGCNA analysis identified the STING pathway as the central mitochondria-related pathway closely associated with the immune system. Single cell analysis, IHC staining, and qRT-PCR confirmed the activation of the STING pathway. Subsequent, bioinformatic analysis revealed the proportion of infiltrating immune cells in the STING-high and STING-low groups of pSS and PD. Furthermore, the study demonstrated the association of the STING pathway with innate and adaptive immune cells, as well as functional cells, in the immune microenvironment of PD and pSS. CONCLUSION Our study uncovered a central pathway that connects mitochondrial dysfunction and the immune microenvironment in PD and pSS, potentially offering valuable insights into therapeutic targets for these conditions.
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Affiliation(s)
- Yuan Zong
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yi Yang
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Jiawen Zhao
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Li
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Danyang Luo
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Jiawei Hu
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yiming Gao
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Xianfei Xie
- Hainan Branch, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Qionghai, China; Department of Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Linhui Shen
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sheng Chen
- Department of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Ning
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
| | - Liting Jiang
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
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Li T, Li S, Ma K, Kong J. Application potential of senolytics in clinical treatment. Biogerontology 2024; 25:379-398. [PMID: 38109001 DOI: 10.1007/s10522-023-10084-5] [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: 07/14/2023] [Accepted: 11/13/2023] [Indexed: 12/19/2023]
Abstract
Of the factors studied in individual ageing, the accumulation of senescent cells has been considered as an essential cause of organ degeneration to eventually initiate age-related diseases. Cellular senescence is attributed to the accumulation of damage for an inducement in the activation of cell cycle inhibitory pathways, resulting the cell permanently withdraw from the cell proliferation cycle. Further, senescent cells will activate the inflammatory factor secretion pathway to promote the development of various age-related diseases. Senolytics, a small molecule compound, can delay disease development and extend mammalian lifespan. The evidence from multiple trials shows that the targeted killing of senescent cells has a significant clinical application for the treatment of age-related diseases. In addition, senolytics are also significant for the development of ageing research in solid organ transplantation, which can fully develop the potential of elderly organs and reduce the age gap between demand and supply. We conclude that the main characteristics of cellular senescence, the anti-ageing drug senolytics in the treatment of chronic diseases and organ transplantation, and the latest clinical progress of related researches in order to provide a theoretical basis for the prevention and treatment of ageing and related diseases.
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Affiliation(s)
- Tiantian Li
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, People's Republic of China
| | - Shiyuan Li
- West China School of Pharmacy, Sichuan University, Chengdu, 610207, Sichuan, People's Republic of China
| | - Kefeng Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, People's Republic of China.
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, People's Republic of China.
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132
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Sun Y, Cheng Y, Hertz DL. Using maximum plasma concentration (C max) to personalize taxane treatment and reduce toxicity. Cancer Chemother Pharmacol 2024; 93:525-539. [PMID: 38734836 DOI: 10.1007/s00280-024-04677-1] [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: 02/01/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024]
Abstract
Taxanes are a widely used class of anticancer agents that play a vital role in the treatment of a variety of cancers. However, toxicity remains a major concern of using taxane drugs as some toxicities are highly prevalent, they can not only adversely affect patient prognosis but also compromise the overall treatment plan. Among all kinds of factors that associated with taxane toxicity, taxane exposure has been extensively studied, with different pharmacokinetic (PK) parameters being used as toxicity predictors. Compared to other widely used predictors such as the area under the drug plasma concentration curve versus time (AUC) and time above threshold plasma drug concentration, maximum plasma concentration (Cmax) is easier to collect and shows promise for use in clinical practice. In this article, we review the previous research on using Cmax to predict taxane treatment outcomes. While Cmax and toxicity have been extensively studied, research on the relationship between Cmax and efficacy is lacking. Most of the articles find a positive relationship between Cmax and toxicity but several articles have contradictory findings. Future clinical trials are needed to validate the relationship between Cmax and treatment outcome and determine whether Cmax can serve as a useful surrogate endpoint of taxane treatment efficacy.
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Affiliation(s)
- Yuchen Sun
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, MI, USA
| | - Yue Cheng
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, MI, USA
| | - Daniel L Hertz
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, MI, USA.
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Surachman A, Harhay M, Santos AR, Daw J, Alexander LM, Almeida DM, Coe CL. Financial Hardship and Age-Related Decrements in Kidney Function Among Black and White Adults in the Midlife in the United States Study. Psychosom Med 2024; 86:431-442. [PMID: 37982543 PMCID: PMC11082066 DOI: 10.1097/psy.0000000000001263] [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] [Indexed: 11/21/2023]
Abstract
OBJECTIVE This analysis examined if financial hardship was associated with age-related decrements in kidney function using a material-psychosocial-behavioral framework. We also tested if this association was mediated by comorbidity of cardiometabolic risk factors (obesity, elevated blood pressure, and insulin resistance). METHODS Data from 1361 non-Hispanic Black and White adults (ages 26-94 years; non-Hispanic Black = 258) were obtained from the Wave 3 and Refresher phases of the Midlife in the United States project. Kidney function was based on serum creatinine-based estimated glomerular filtration rate (eGFR; Chronic Kidney Disease Epidemiology Collaboration formula without race adjustment). Financial hardship was evaluated in three domains: material (income to poverty line ratio, health insurance coverage, and public/government financial assistance), psychological (perceived financial status, control over financial status, and perceived financial strains), and behavioral responses (financial adjustment/coping such as sold possessions and cutting back on spending). RESULTS More severe financial hardship (overall score and in each domain) was associated with age-related decrements in eGFR, even after adjusting for sociodemographic, education, and health-related covariates. The association between financial hardship and age-related decrements in eGFR was conditional on sex but not race. Finally, cardiometabolic risk factors mediated the association between financial hardship and age-related decrements in eGFR. CONCLUSIONS These findings affirm the negative effects of financial hardship on age-related decrements in renal clearance. In addition to incorporating traditionally used indicators of SES, such as education and income, future research on social hallmarks of aging should also consider the role of financial hardship on the aging process and age-related diseases.
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Affiliation(s)
- Agus Surachman
- Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
- College of Nursing and Health Professions, Drexel University, Philadelphia, PA, USA
| | - Meera Harhay
- Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
- Department of Medicine, College of Medicine, Drexel University, Philadelphia, PA, USA
| | - Alexis R. Santos
- Department of Human Development and Family Studies, The Pennsylvania State University, University Park, PA, USA
- Center for Healthy Aging, The Pennsylvania State University, University Park, PA, USA
| | - Jonathan Daw
- Department of Sociology and Criminology, The Pennsylvania State University, University Park, PA, USA
| | - Lacy M. Alexander
- Center for Healthy Aging, The Pennsylvania State University, University Park, PA, USA
- Department of Kinesiology, The Pennsylvania State University, University Park, PA, USA
| | - David M. Almeida
- Department of Human Development and Family Studies, The Pennsylvania State University, University Park, PA, USA
- Center for Healthy Aging, The Pennsylvania State University, University Park, PA, USA
| | - Christopher L. Coe
- Department of Psychology, University of Wisconsin-Madison, Madison, WI, USA
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134
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Vincent JL. Ethical issues surrounding appropriate care for older persons in the Intensive Care Unit. Panminerva Med 2024; 66:146-154. [PMID: 38536008 DOI: 10.23736/s0031-0808.24.05089-4] [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: 06/13/2024]
Abstract
Increasing numbers of older patients are being admitted to the Intensive Care Unit (ICU) as the world's population ages. The biological process of ageing, senescence, results in altered ability to maintain normal homeostasis and organ function, including of the cardiovascular, immune, and neuromuscular systems. This contributes towards increased frailty in older patients, associated with functional limitations and increased vulnerability. Although widely defined using chronological age, the concept of "old age" is thus multifactorial, including biological, but also psychological and sociocultural aspects, which should all be taken into account when considering what is appropriate in terms of ICU admission and management. As for all patients, but perhaps particularly in this subgroup, decisions regarding ICU admission and treatment and the withdrawing and withholding of life support must be individualized.
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Affiliation(s)
- Jean-Louis Vincent
- Department of Intensive Care, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium -
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Chen X, Luo Y, Zhu Q, Zhang J, Huang H, Kan Y, Li D, Xu M, Liu S, Li J, Pan J, Zhang L, Guo Y, Wang B, Qi G, Zhou Z, Zhang CY, Fang L, Wang Y, Chen X. Small extracellular vesicles from young plasma reverse age-related functional declines by improving mitochondrial energy metabolism. NATURE AGING 2024; 4:814-838. [PMID: 38627524 PMCID: PMC11186790 DOI: 10.1038/s43587-024-00612-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/15/2024] [Indexed: 05/31/2024]
Abstract
Recent investigations into heterochronic parabiosis have unveiled robust rejuvenating effects of young blood on aged tissues. However, the specific rejuvenating mechanisms remain incompletely elucidated. Here we demonstrate that small extracellular vesicles (sEVs) from the plasma of young mice counteract pre-existing aging at molecular, mitochondrial, cellular and physiological levels. Intravenous injection of young sEVs into aged mice extends their lifespan, mitigates senescent phenotypes and ameliorates age-associated functional declines in multiple tissues. Quantitative proteomic analyses identified substantial alterations in the proteomes of aged tissues after young sEV treatment, and these changes are closely associated with metabolic processes. Mechanistic investigations reveal that young sEVs stimulate PGC-1α expression in vitro and in vivo through their miRNA cargoes, thereby improving mitochondrial functions and mitigating mitochondrial deficits in aged tissues. Overall, this study demonstrates that young sEVs reverse degenerative changes and age-related dysfunction, at least in part, by stimulating PGC-1α expression and enhancing mitochondrial energy metabolism.
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Affiliation(s)
- Xiaorui Chen
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Yang Luo
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Qing Zhu
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Jingzi Zhang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, China
| | - Huan Huang
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yansheng Kan
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Dian Li
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Ming Xu
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Shuohan Liu
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Jianxiao Li
- Institute of Systems, Molecular and Integrative Biology, School of Life Sciences, University of Liverpool, Liverpool, UK
| | - Jinmeng Pan
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Li Zhang
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Yan Guo
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Binghao Wang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Guantong Qi
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Zhen Zhou
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Chen-Yu Zhang
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China.
- Research Unit of Extracellular RNA, Chinese Academy of Medical Sciences, Nanjing, China.
- Institute of Artificial Intelligence Biomedicine, Nanjing University, Nanjing, China.
| | - Lei Fang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China.
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, China.
| | - Yanbo Wang
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China.
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, China.
| | - Xi Chen
- Center for Reproductive Medicine and Department of Andrology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China.
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, China.
- Institute of Artificial Intelligence Biomedicine, Nanjing University, Nanjing, China.
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136
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Konturek-Ciesla A, Bryder D. Revitalizing the Aging Immune System Through Selective Stem Cell Targeting. Cell Reprogram 2024; 26:93-95. [PMID: 38917436 DOI: 10.1089/cell.2024.0029] [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: 06/27/2024] Open
Abstract
The interplay between aging and immune system deterioration presents a formidable challenge to human health, especially in the context of a globally aging population. Aging is associated with a decline in the body's ability to combat infections and an increased risk of various diseases, underlining the importance of rejuvenating the immune system as a strategy for promoting healthier aging. In issue 628 of Nature (2024), Ross et al. present a compelling study that introduces a novel strategy for rejuvenating the aged immune system (Ross et al., 2024). By using antibodies to selectively eliminate "aberrant" hematopoietic stem cells (HSCs), this research opens new avenues for addressing age-related immune deterioration.
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Affiliation(s)
- Anna Konturek-Ciesla
- Division of Molecular Hematology, Department of Laboratory Medicine, Medical Faculty, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - David Bryder
- Division of Molecular Hematology, Department of Laboratory Medicine, Medical Faculty, Lund Stem Cell Center, Lund University, Lund, Sweden
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137
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Mathisen AF, Legøy TA, Larsen U, Unger L, Abadpour S, Paulo JA, Scholz H, Ghila L, Chera S. The age-dependent regulation of pancreatic islet landscape is fueled by a HNF1a-immune signaling loop. Mech Ageing Dev 2024; 220:111951. [PMID: 38825059 DOI: 10.1016/j.mad.2024.111951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/30/2024] [Accepted: 05/21/2024] [Indexed: 06/04/2024]
Abstract
Animal longevity is a function of global vital organ functionality and, consequently, a complex polygenic trait. Yet, monogenic regulators controlling overall or organ-specific ageing exist, owing their conservation to their function in growth and development. Here, by using pathway analysis combined with wet-biology methods on several dynamic timelines, we identified Hnf1a as a novel master regulator of the maturation and ageing in the adult pancreatic islet during the first year of life. Conditional transgenic mice bearing suboptimal levels of this transcription factor in the pancreatic islets displayed age-dependent changes, with a profile echoing precocious maturation. Additionally, the comparative pathway analysis revealed a link between Hnf1a age-dependent regulation and immune signaling, which was confirmed in the ageing timeline of an overly immunodeficient mouse model. Last, the global proteome analysis of human islets spanning three decades of life largely backed the age-specific regulation observed in mice. Collectively, our results suggest a novel role of Hnf1a as a monogenic regulator of the maturation and ageing process in the pancreatic islet via a direct or indirect regulatory loop with immune signaling.
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Affiliation(s)
- Andreas Frøslev Mathisen
- Mohn Research Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Thomas Aga Legøy
- Mohn Research Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Ulrik Larsen
- Mohn Research Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Lucas Unger
- Mohn Research Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Shadab Abadpour
- Hybrid Technology Hub-Centre of Excellence, Faculty of Medicine, University of Oslo, Norway; Institute for Surgical Research, Department of Transplant Medicine, Oslo University Hospital, Oslo, Norway
| | - Joao A Paulo
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Hanne Scholz
- Hybrid Technology Hub-Centre of Excellence, Faculty of Medicine, University of Oslo, Norway; Institute for Surgical Research, Department of Transplant Medicine, Oslo University Hospital, Oslo, Norway
| | - Luiza Ghila
- Mohn Research Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Simona Chera
- Mohn Research Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway.
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Niimi P, Gould V, Thrush-Evensen K, Levine ME. The Latent Aging of Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.28.596284. [PMID: 38854054 PMCID: PMC11160607 DOI: 10.1101/2024.05.28.596284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
As epigenetic clocks have evolved from powerful estimators of chronological aging to predictors of mortality and disease risk, it begs the question of what role DNA methylation plays in the aging process. We hypothesize that while it has the potential to serve as an informative biomarker, DNA methylation could also be a key to understanding the biology entangled between aging, (de)differentiation, and epigenetic reprogramming. Here we use an unsupervised approach to analyze time associated DNA methylation from both in vivo and in vitro samples to measure an underlying signal that ties these phenomena together. We identify a methylation pattern shared across all three, as well as a signal that tracks aging in tissues but appears refractory to reprogramming, suggesting that aging and reprogramming may not be fully mirrored processes.
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Affiliation(s)
- Peter Niimi
- Program in Experimental Pathology, Yale University, New Haven, CT, USA
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
| | - Victoria Gould
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
| | | | - Morgan E Levine
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
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139
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Fraser C, Owen BM. Naïve T-cell decline is a significant contributor to expression changes in ageing blood. FRONTIERS IN AGING 2024; 5:1389789. [PMID: 38873125 PMCID: PMC11169655 DOI: 10.3389/fragi.2024.1389789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 05/13/2024] [Indexed: 06/15/2024]
Abstract
No clear consensus has emerged from the literature on the gene expression changes that occur in human whole blood with age. In this study we compared whole blood ageing genes from the published literature with data on gene specificity for leukocyte subtypes. Surprisingly we found that highly ranked ageing genes were predominantly expressed by naïve T cells, with limited expression from more common cell types. Highly ranked ageing genes were also more likely to have decreased expression with age. Taken together, it is plausible that much of the observed gene expression changes in whole blood is reflecting the decline in abundance of naïve T cells known to occur with age, rather than changes in transcription rates in common cell types. Correct attribution of the gene expression changes that occur with age is essential for understanding the underlying mechanisms.
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140
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Faria M, Ganz A, Galkin F, Zhavoronkov A, Snyder M. Psychogenic Aging: A Novel Prospect to Integrate Psychobiological Hallmarks of Aging. Transl Psychiatry 2024; 14:226. [PMID: 38816369 PMCID: PMC11139997 DOI: 10.1038/s41398-024-02919-7] [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: 03/30/2023] [Revised: 12/20/2023] [Accepted: 05/08/2024] [Indexed: 06/01/2024] Open
Abstract
Psychological factors are amongst the most robust predictors of healthspan and longevity, yet are rarely incorporated into scientific and medical frameworks of aging. The prospect of characterizing and integrating the psychological influences of aging is therefore an unmet step for the advancement of geroscience. Psychogenic Aging research is an emerging branch of biogerontology that aims to address this gap by investigating the impact of psychological factors on human longevity. It is an interdisciplinary field that integrates complex psychological, neurological, and molecular relationships that can be best understood with precision medicine methodologies. This perspective argues that psychogenic aging should be considered an integral component of the Hallmarks of Aging framework, opening the doors for future biopsychosocial integration in longevity research. By providing a unique perspective on frequently overlooked aspects of organismal aging, psychogenic aging offers new insights and targets for anti-aging therapeutics on individual and societal levels that can significantly benefit the scientific and medical communities.
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Affiliation(s)
- Manuel Faria
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Ariel Ganz
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Alex Zhavoronkov
- Deep Longevity, Hong Kong, China
- Insilico Medicine, Hong Kong, China
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Michael Snyder
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.
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Khunlertkit T, Viangteeravat T, Wangprapa P, Siriwechdaruk S, Ford JM, Pongpirul K. Impact of integrative care on cardiovascular disease risk in newly diagnosed type 2 diabetes mellitus patients: A BI-VitalLife Cohort study. PLoS One 2024; 19:e0302438. [PMID: 38809890 PMCID: PMC11135683 DOI: 10.1371/journal.pone.0302438] [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: 08/17/2023] [Accepted: 04/03/2024] [Indexed: 05/31/2024] Open
Abstract
INTRODUCTION Type 2 diabetes mellitus (T2DM), a chronic metabolic disorder, significantly increases cardiovascular disease (CVD) risk. Integrative care (IC) offers a personalized health management approach, utilizing various interventions to mitigate this risk. However, the impact of IC on CVD risk in newly diagnosed T2Dm patients remains unclear. This study aims to assess the differences in CVD risk development within 120 months following a new diagnosis of T2DM, using real-world data from Bumrungrad International Hospital and Vitallife Scientific Wellness Center. METHODS This study utilized the BI-VitalLife Cohort dataset that contains de-identified demographics, vitals, diagnoses and clinical information, laboratory and radiological data, medications, and treatments of more than 2.8 million patients who visited Bumrungrad International Hospital and/or VitalLife Scientific Wellness Center from June 1, 1999, to May 31, 2022. This study focused on newly diagnosed T2DM patients, defined according to American Diabetes Association criteria. We compared CVD risk between the IC and conventional care (CC) groups using the Kaplan-Meier curve and Cox proportional hazard model, adjusted for age, sex, and laboratory values. Propensity score matching was employed to enhance comparability. RESULTS Of the 5,687 patients included, 236 were in the IC group and 5,451 in the CC group. The IC group, characterized by a lower age at T2DM diagnosis, showed favorable hematological and metabolic profiles. The Cox proportional hazard ratios revealed a significantly lower CVD risk in the IC group within 120 months post-T2DM diagnosis compared to the CC group, consistent even after adjusting for confounding factors. Propensity score-matched analysis supported these findings. CONCLUSION Personalized integrative care may offer a significant advantage in reducing CVD risk among newly diagnosed T2DM patients compared to conventional care, even when considering various confounding factors. This study sheds light on the potential of integrative care in informing treatment strategies for T2DM patients at risk of developing CVD.
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Affiliation(s)
| | | | | | - Suthee Siriwechdaruk
- Bumrungrad International Hospital, Bangkok, Thailand
- VitalLife Scientific Wellness Center, Bangkok, Thailand
| | | | - Krit Pongpirul
- Bumrungrad International Hospital, Bangkok, Thailand
- Center of Excellence in Preventive and Integrative Medicine and Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
- Department of Infection Biology & Microbiomes, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
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142
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Lasher AT, Wang L, Hyun J, Summers SA, Sun LY. Unveiling ceramide dynamics: Shedding light on healthy aging in growth hormone-releasing hormone knockout mice. Aging Cell 2024:e14226. [PMID: 38808779 DOI: 10.1111/acel.14226] [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: 01/26/2024] [Revised: 04/05/2024] [Accepted: 04/29/2024] [Indexed: 05/30/2024] Open
Abstract
Dysregulation of growth hormone (GH) signaling consistently leads to increased lifespan in laboratory rodents, yet the precise mechanisms driving this extension remain unclear. Understanding the molecular underpinnings of the beneficial effects associated with GH deficiency could unveil novel therapeutic targets for promoting healthy aging and longevity. In our pursuit of identifying metabolites implicated in aging, we conducted an unbiased lipidomic analysis of serum samples from growth hormone-releasing hormone knockout (GHRH-KO) female mice and their littermate controls. Employing a targeted lipidomic approach, we specifically investigated ceramide levels in GHRH-KO mice, a well-established model of enhanced longevity. While younger GHRH-KO mice did not exhibit notable differences in serum lipids, older counterparts demonstrated significant reductions in over one-third of the evaluated lipids. In employing the same analysis in liver tissue, GHRH-KO mice showed pronounced downregulation of numerous ceramides and hexosylceramides, which have been shown to elicit many of the tissue defects that accompany aging (e.g., insulin resistance, oxidative stress, and cell death). Additionally, gene expression analysis in the liver tissue of adult GHRH-KO mice identified substantial decreases in several ceramide synthesis genes, indicating that these alterations are, at least in part, attributed to GHRH-KO-induced transcriptional changes. These findings provide the first evidence of disrupted ceramide metabolism in a long-lived mammal. This study sheds light on the intricate connections between GH deficiency, ceramide levels, and the molecular mechanisms influencing lifespan extension.
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Affiliation(s)
- Alexander Tate Lasher
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Liping Wang
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, USA
| | - Jooyoung Hyun
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Scott A Summers
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, USA
| | - Liou Y Sun
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Duke VR, Philippon MJ, Lind DRG, Kasler H, Yamaura K, Huard M, Czachor M, Hollenbeck J, Brown J, Garcia A, Fukase N, Marcucio RS, Nelson AL, Hambright WS, Snapper DM, Huard J, Bahney CS. Murine Progeria Model Exhibits Delayed Fracture Healing with Dysregulated Local Immune Response. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.29.596277. [PMID: 38854043 PMCID: PMC11160782 DOI: 10.1101/2024.05.29.596277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Background Bone fracture is one of the most globally prevalent injuries, with an estimated 189 million bone fractures occurring annually. Delayed union or nonunion occurs in up to 15% of fractures and involves the interruption or complete failure of bone continuity following fracture. Preclinical testing is essential to support the translation of novel strategies to promote improved fracture repair treatment, but there is a paucity of small animal models that recapitulate clinical attributes associated with delayed fracture healing. This study explores whether the Zmpste24 -/- (Z24 -/- ) knockout mouse model of Hutchinson-Gilford progeria syndrome presents with delayed fracture healing. Leveraging the previously characterized Z24 -/- phenotype of genomic instability, epigenetic changes, and fragility, we hypothesize that these underlying alterations will lead to significantly delayed fracture healing relative to age-matched wild type (WT) controls. Methods WT and Z24 -/- mice received intramedullary fixed tibia fractures at ∼12 weeks of age. Mice were sacrificed throughout the time course of repair for the collection of organs that would provide information regarding the local (fracture callus, bone marrow, inguinal lymph nodes) versus peripheral (peripheral blood, contralateral tibia, abdominal organs) tissue microenvironments. Analyses of these specimens include histomorphometry, μCT, mechanical strength testing, protein quantification, gene expression analysis, flow cytometry for cellular senescence, and immunophenotyping. Results Z24 -/- mice demonstrated a significantly delayed rate of healing compared to WT mice with consistently smaller fracture calli containing higher proportion of cartilage and less bone after injury. Cellular senescence and pro-inflammatory cytokines were elevated in the Z24 -/- mice before and after fracture. These mice further presented with a dysregulated immune system, exhibiting generally decreased lymphopoiesis and increased myelopoiesis locally in the bone marrow, with more naïve and less memory T cell but greater myeloid activation systemically in the peripheral blood. Surprisingly, the ipsilateral lymph nodes had increased T cell activation and other pro-inflammatory NK and myeloid cells, suggesting that elevated myeloid abundance and activation contributes to an injury-specific hyperactivation of T cells. Conclusion Taken together, these data establish the Z24 -/- progeria mouse as a model of delayed fracture healing that exhibits decreased bone in the fracture callus, with weaker overall bone quality, immune dysregulation, and increased cellular senescence. Based on this mechanism for delayed healing, we propose this Z24 -/- progeria mouse model could be useful in testing novel therapeutics that could address delayed healing. The Translational Potential of this Article This study employs a novel animal model for delayed fracture healing that researchers can use to screen fracture healing therapeutics to address the globally prevalent issue of aberrant fracture healing.
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Cecchin-Albertoni C, Deny O, Planat-Bénard V, Guissard C, Paupert J, Vaysse F, Marty M, Casteilla L, Monsarrat P, Kémoun P. The oral organ: A new vision of the mouth as a whole for a gerophysiological approach to healthy aging. Ageing Res Rev 2024; 99:102360. [PMID: 38821417 DOI: 10.1016/j.arr.2024.102360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/07/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
This article brings a new perspective on oral physiology by presenting the oral organ as an integrated entity within the entire organism and its surrounding environment. Rather than considering the mouth solely as a collection of discrete functions, this novel approach emphasizes its role as a dynamic interphase, supporting interactions between the body and external factors. As a resilient ecosystem, the equilibrium of mouth ecological niches is the result of a large number of interconnected factors including the heterogeneity of different oral structures, diversity of resources, external and internal pressures and biological actors. The manuscript seeks to deepen the understanding of age-related changes within the oral cavity and throughout the organism, aligning with the evolving field of gerophysiology. The strategic position and fundamental function of the mouth make it an invaluable target for early prevention, diagnosis, treatment, and even reversal of aging effects throughout the entire organism. Recognizing the oral cavity capacity for sensory perception, element capture and information processing underscores its vital role in continuous health monitoring. Overall, this integrated understanding of the oral physiology aims at advancing comprehensive approaches to the oral healthcare and promoting broader awareness of its implications on the overall well-being.
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Affiliation(s)
- Chiara Cecchin-Albertoni
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Olivier Deny
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Valérie Planat-Bénard
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Christophe Guissard
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Jenny Paupert
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Frédéric Vaysse
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France
| | - Mathieu Marty
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; LIRDEF, Faculty of Educational Sciences, Paul Valery University, Montpellier CEDEX 5 34199, France
| | - Louis Casteilla
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Paul Monsarrat
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France; Artificial and Natural Intelligence Toulouse Institute ANITI, Toulouse, France
| | - Philippe Kémoun
- Oral Medicine Department and CHU de Toulouse, Toulouse Institute of Oral Medicine and Science, Toulouse, France; RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France.
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145
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Walzik D, Wences Chirino TY, Zimmer P, Joisten N. Molecular insights of exercise therapy in disease prevention and treatment. Signal Transduct Target Ther 2024; 9:138. [PMID: 38806473 PMCID: PMC11133400 DOI: 10.1038/s41392-024-01841-0] [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: 01/20/2024] [Revised: 04/17/2024] [Accepted: 04/23/2024] [Indexed: 05/30/2024] Open
Abstract
Despite substantial evidence emphasizing the pleiotropic benefits of exercise for the prevention and treatment of various diseases, the underlying biological mechanisms have not been fully elucidated. Several exercise benefits have been attributed to signaling molecules that are released in response to exercise by different tissues such as skeletal muscle, cardiac muscle, adipose, and liver tissue. These signaling molecules, which are collectively termed exerkines, form a heterogenous group of bioactive substances, mediating inter-organ crosstalk as well as structural and functional tissue adaption. Numerous scientific endeavors have focused on identifying and characterizing new biological mediators with such properties. Additionally, some investigations have focused on the molecular targets of exerkines and the cellular signaling cascades that trigger adaption processes. A detailed understanding of the tissue-specific downstream effects of exerkines is crucial to harness the health-related benefits mediated by exercise and improve targeted exercise programs in health and disease. Herein, we review the current in vivo evidence on exerkine-induced signal transduction across multiple target tissues and highlight the preventive and therapeutic value of exerkine signaling in various diseases. By emphasizing different aspects of exerkine research, we provide a comprehensive overview of (i) the molecular underpinnings of exerkine secretion, (ii) the receptor-dependent and receptor-independent signaling cascades mediating tissue adaption, and (iii) the clinical implications of these mechanisms in disease prevention and treatment.
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Affiliation(s)
- David Walzik
- Division of Performance and Health (Sports Medicine), Institute for Sport and Sport Science, TU Dortmund University, 44227, Dortmund, North Rhine-Westphalia, Germany
| | - Tiffany Y Wences Chirino
- Division of Performance and Health (Sports Medicine), Institute for Sport and Sport Science, TU Dortmund University, 44227, Dortmund, North Rhine-Westphalia, Germany
| | - Philipp Zimmer
- Division of Performance and Health (Sports Medicine), Institute for Sport and Sport Science, TU Dortmund University, 44227, Dortmund, North Rhine-Westphalia, Germany.
| | - Niklas Joisten
- Division of Performance and Health (Sports Medicine), Institute for Sport and Sport Science, TU Dortmund University, 44227, Dortmund, North Rhine-Westphalia, Germany.
- Division of Exercise and Movement Science, Institute for Sport Science, University of Göttingen, 37075, Göttingen, Lower Saxony, Germany.
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146
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Dashtmian AR, Darvishi FB, Arnold WD. Chronological and Biological Aging in Amyotrophic Lateral Sclerosis and the Potential of Senolytic Therapies. Cells 2024; 13:928. [PMID: 38891059 PMCID: PMC11171952 DOI: 10.3390/cells13110928] [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: 04/01/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/20/2024] Open
Abstract
Amyotrophic Lateral Sclerosis (ALS) is a group of sporadic and genetic neurodegenerative disorders that result in losses of upper and lower motor neurons. Treatment of ALS is limited, and survival is 2-5 years after disease onset. While ALS can occur in younger individuals, the risk significantly increases with advancing age. Notably, both sporadic and genetic forms of ALS share pathophysiological features overlapping hallmarks of aging including genome instability/DNA damage, mitochondrial dysfunction, inflammation, proteostasis, and cellular senescence. This review explores chronological and biological aging in the context of ALS onset and progression. Age-related muscle weakness and motor unit loss mirror aspects of ALS pathology and coincide with peak ALS incidence, suggesting a potential link between aging and disease development. Hallmarks of biological aging, including DNA damage, mitochondrial dysfunction, and cellular senescence, are implicated in both aging and ALS, offering insights into shared mechanisms underlying disease pathogenesis. Furthermore, senescence-associated secretory phenotype and senolytic treatments emerge as promising avenues for ALS intervention, with the potential to mitigate neuroinflammation and modify disease progression.
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Affiliation(s)
- Anna Roshani Dashtmian
- NextGen Precision Health, University of Missouri, Columbia, MO 65211, USA; (A.R.D.); (F.B.D.)
- NextGen Precision Health, Department of Physical Medicine and Rehabilitation, University of Missouri, Columbia, MO 65211, USA
| | - Fereshteh B. Darvishi
- NextGen Precision Health, University of Missouri, Columbia, MO 65211, USA; (A.R.D.); (F.B.D.)
- NextGen Precision Health, Department of Physical Medicine and Rehabilitation, University of Missouri, Columbia, MO 65211, USA
| | - William David Arnold
- NextGen Precision Health, University of Missouri, Columbia, MO 65211, USA; (A.R.D.); (F.B.D.)
- NextGen Precision Health, Department of Physical Medicine and Rehabilitation, University of Missouri, Columbia, MO 65211, USA
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147
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Liu F, Lu Y, Wang X, Sun S, Pan H, Wang M, Wang Z, Zhang W, Ma S, Sun G, Chu Q, Wang S, Qu J, Liu GH. Identification of FOXO1 as a geroprotector in human synovium through single-nucleus transcriptomic profiling. Protein Cell 2024; 15:441-459. [PMID: 38092362 PMCID: PMC11131031 DOI: 10.1093/procel/pwad060] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/09/2023] [Indexed: 05/29/2024] Open
Abstract
The synovium, a thin layer of tissue that is adjacent to the joints and secretes synovial fluid, undergoes changes in aging that contribute to intense shoulder pain and other joint diseases. However, the mechanism underlying human synovial aging remains poorly characterized. Here, we generated a comprehensive transcriptomic profile of synovial cells present in the subacromial synovium from young and aged individuals. By delineating aging-related transcriptomic changes across different cell types and their associated regulatory networks, we identified two subsets of mesenchymal stromal cells (MSCs) in human synovium, which are lining and sublining MSCs, and found that angiogenesis and fibrosis-associated genes were upregulated whereas genes associated with cell adhesion and cartilage development were downregulated in aged MSCs. Moreover, the specific cell-cell communications in aged synovium mirrors that of aging-related inflammation and tissue remodeling, including vascular hyperplasia and tissue fibrosis. In particular, we identified forkhead box O1 (FOXO1) as one of the major regulons for aging differentially expressed genes (DEGs) in synovial MSCs, and validated its downregulation in both lining and sublining MSC populations of the aged synovium. In human FOXO1-depleted MSCs derived from human embryonic stem cells, we recapitulated the senescent phenotype observed in the subacromial synovium of aged donors. These data indicate an important role of FOXO1 in the regulation of human synovial aging. Overall, our study improves our understanding of synovial aging during joint degeneration, thereby informing the development of novel intervention strategies aimed at rejuvenating the aged joint.
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Affiliation(s)
- Feifei Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yi Lu
- Sports Medicine Department, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, China
| | - Xuebao Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuhui Sun
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Huize Pan
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Min Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Division of Life Sciences and Medicine, School of Life Sciences, University of Science and Technology of China, Hefei 230001, China
| | - Zehua Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weiqi Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
| | - Shuai Ma
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Guoqiang Sun
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Qun Chu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
- The Fifth People’s Hospital of Chongqing, Chongqing 400062, China
| | - Si Wang
- The Fifth People’s Hospital of Chongqing, Chongqing 400062, China
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China
- Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Jing Qu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Guang-Hui Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China
- Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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148
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Terao R, Lee TJ, Colasanti J, Pfeifer CW, Lin JB, Santeford A, Hase K, Yamaguchi S, Du D, Sohn BS, Sasaki Y, Yoshida M, Apte RS. LXR/CD38 activation drives cholesterol-induced macrophage senescence and neurodegeneration via NAD + depletion. Cell Rep 2024; 43:114102. [PMID: 38636518 DOI: 10.1016/j.celrep.2024.114102] [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: 09/15/2023] [Revised: 02/23/2024] [Accepted: 03/27/2024] [Indexed: 04/20/2024] Open
Abstract
Although dysregulated cholesterol metabolism predisposes aging tissues to inflammation and a plethora of diseases, the underlying molecular mechanism remains poorly defined. Here, we show that metabolic and genotoxic stresses, convergently acting through liver X nuclear receptor, upregulate CD38 to promote lysosomal cholesterol efflux, leading to nicotinamide adenine dinucleotide (NAD+) depletion in macrophages. Cholesterol-mediated NAD+ depletion induces macrophage senescence, promoting key features of age-related macular degeneration (AMD), including subretinal lipid deposition and neurodegeneration. NAD+ augmentation reverses cellular senescence and macrophage dysfunction, preventing the development of AMD phenotype. Genetic and pharmacological senolysis protect against the development of AMD and neurodegeneration. Subretinal administration of healthy macrophages promotes the clearance of senescent macrophages, reversing the AMD disease burden. Thus, NAD+ deficit induced by excess intracellular cholesterol is the converging mechanism of macrophage senescence and a causal process underlying age-related neurodegeneration.
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Affiliation(s)
- Ryo Terao
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA; Department of Ophthalmology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Tae Jun Lee
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Jason Colasanti
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Charles W Pfeifer
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Joseph B Lin
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Andrea Santeford
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Keitaro Hase
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA; Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Shinobu Yamaguchi
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Daniel Du
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Brian S Sohn
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Yo Sasaki
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Mitsukuni Yoshida
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA; Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, USA.
| | - Rajendra S Apte
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA; Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA; Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA.
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149
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Sfera A, Imran H, Sfera DO, Anton JJ, Kozlakidis Z, Hazan S. Novel Insights into Psychosis and Antipsychotic Interventions: From Managing Symptoms to Improving Outcomes. Int J Mol Sci 2024; 25:5904. [PMID: 38892092 PMCID: PMC11173215 DOI: 10.3390/ijms25115904] [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: 03/26/2024] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
For the past 70 years, the dopamine hypothesis has been the key working model in schizophrenia. This has contributed to the development of numerous inhibitors of dopaminergic signaling and antipsychotic drugs, which led to rapid symptom resolution but only marginal outcome improvement. Over the past decades, there has been limited research on the quantifiable pathological changes in schizophrenia, including premature cellular/neuronal senescence, brain volume loss, the attenuation of gamma oscillations in electroencephalograms, and the oxidation of lipids in the plasma and mitochondrial membranes. We surmise that the aberrant activation of the aryl hydrocarbon receptor by toxins derived from gut microbes or the environment drives premature cellular and neuronal senescence, a hallmark of schizophrenia. Early brain aging promotes secondary changes, including the impairment and loss of mitochondria, gray matter depletion, decreased gamma oscillations, and a compensatory metabolic shift to lactate and lactylation. The aim of this narrative review is twofold: (1) to summarize what is known about premature cellular/neuronal senescence in schizophrenia or schizophrenia-like disorders, and (2) to discuss novel strategies for improving long-term outcomes in severe mental illness with natural senotherapeutics, membrane lipid replacement, mitochondrial transplantation, microbial phenazines, novel antioxidant phenothiazines, inhibitors of glycogen synthase kinase-3 beta, and aryl hydrocarbon receptor antagonists.
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Affiliation(s)
- Adonis Sfera
- Patton State Hospital, 3102 Highland Ave., Patton, CA 92369, USA; (H.I.)
- University of California Riverside, Riverside 900 University Ave., Riverside, CA 92521, USA
- Loma Linda University, 11139 Anderson St., Loma Linda, CA 92350, USA
| | - Hassan Imran
- Patton State Hospital, 3102 Highland Ave., Patton, CA 92369, USA; (H.I.)
- University of California Riverside, Riverside 900 University Ave., Riverside, CA 92521, USA
- Loma Linda University, 11139 Anderson St., Loma Linda, CA 92350, USA
| | - Dan O. Sfera
- Patton State Hospital, 3102 Highland Ave., Patton, CA 92369, USA; (H.I.)
- University of California Riverside, Riverside 900 University Ave., Riverside, CA 92521, USA
- Loma Linda University, 11139 Anderson St., Loma Linda, CA 92350, USA
| | | | - Zisis Kozlakidis
- International Agency for Research on Cancer, 69372 Lyon, France;
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Sehgal R, Markov Y, Qin C, Meer M, Hadley C, Shadyab AH, Casanova R, Manson JE, Bhatti P, Crimmins EM, Hägg S, Assimes TL, Whitsel EA, Higgins-Chen AT, Levine M. Systems Age: A single blood methylation test to quantify aging heterogeneity across 11 physiological systems. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.07.13.548904. [PMID: 37503069 PMCID: PMC10370047 DOI: 10.1101/2023.07.13.548904] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Individuals, organs, tissues, and cells age in diverse ways throughout the lifespan. Epigenetic clocks attempt to quantify differential aging between individuals, but they typically summarize aging as a single measure, ignoring within-person heterogeneity. Our aim was to develop novel systems-based methylation clocks that, when assessed in blood, capture aging in distinct physiological systems. We combined supervised and unsupervised machine learning methods to link DNA methylation, system-specific clinical chemistry and functional measures, and mortality risk. This yielded a panel of 11 system-specific scores- Heart, Lung, Kidney, Liver, Brain, Immune, Inflammatory, Blood, Musculoskeletal, Hormone, and Metabolic. Each system score predicted a wide variety of outcomes, aging phenotypes, and conditions specific to the respective system. We also combined the system scores into a composite Systems Age clock that is predictive of aging across physiological systems in an unbiased manner. Finally, we showed that the system scores clustered individuals into unique aging subtypes that had different patterns of age-related disease and decline. Overall, our biological systems based epigenetic framework captures aging in multiple physiological systems using a single blood draw and assay and may inform the development of more personalized clinical approaches for improving age-related quality of life.
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