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Lian WS, Wu RW, Chen YS, Ko JY, Wang SY, Jahr H, Wang FS. MicroRNA-29a Mitigates Osteoblast Senescence and Counteracts Bone Loss through Oxidation Resistance-1 Control of FoxO3 Methylation. Antioxidants (Basel) 2021; 10:antiox10081248. [PMID: 34439496 PMCID: PMC8389244 DOI: 10.3390/antiox10081248] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/01/2021] [Accepted: 08/01/2021] [Indexed: 12/20/2022] Open
Abstract
Senescent osteoblast overburden accelerates bone mass loss. Little is understood about microRNA control of oxidative stress and osteoblast senescence in osteoporosis. We revealed an association between microRNA-29a (miR-29a) loss, oxidative stress marker 8-hydroxydeoxyguanosine (8-OHdG), DNA hypermethylation marker 5-methylcystosine (5mC), and osteoblast senescence in human osteoporosis. miR-29a knockout mice showed low bone mass, sparse trabecular microstructure, and osteoblast senescence. miR-29a deletion exacerbated bone loss in old mice. Old miR-29a transgenic mice showed fewer osteoporosis signs, less 5mC, and less 8-OHdG formation than age-matched wild-type mice. miR-29a overexpression reversed age-induced senescence and osteogenesis loss in bone-marrow stromal cells. miR-29a promoted transcriptomic landscapes of redox reaction and forkhead box O (FoxO) pathways, preserving oxidation resistance protein-1 (Oxr1) and FoxO3 in old mice. In vitro, miR-29a interrupted DNA methyltransferase 3b (Dnmt3b)-mediated FoxO3 promoter methylation and senescence-associated β-galactosidase activity in aged osteoblasts. Dnmt3b inhibitor 5'-azacytosine, antioxidant N-acetylcysteine, or Oxr1 recombinant protein attenuated loss in miR-29a and FoxO3 to mitigate oxidative stress, senescence, and mineralization matrix underproduction. Taken together, miR-29a promotes Oxr1, compromising oxidative stress and FoxO3 loss to delay osteoblast aging and bone loss. This study sheds light on a new antioxidation mechanism by which miR-29a protects against osteoblast aging and highlights the remedial effects of miR-29a on osteoporosis.
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Affiliation(s)
- Wei-Shiung Lian
- Core Laboratory for Phenomics and Diagnostic, Department of Medical Research, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (Y.-S.C.); (S.-Y.W.)
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Re-Wen Wu
- Department of Orthopedic Surgery, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (R.-W.W.); (J.-Y.K.)
| | - Yu-Shan Chen
- Core Laboratory for Phenomics and Diagnostic, Department of Medical Research, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (Y.-S.C.); (S.-Y.W.)
| | - Jih-Yang Ko
- Department of Orthopedic Surgery, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (R.-W.W.); (J.-Y.K.)
| | - Shao-Yu Wang
- Core Laboratory for Phenomics and Diagnostic, Department of Medical Research, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (Y.-S.C.); (S.-Y.W.)
| | - Holger Jahr
- Department of Anatomy and Cell Biology, University Hospital RWTH Aachen, 52074 Aachen, Germany;
- Department of Orthopedic Surgery, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Feng-Sheng Wang
- Core Laboratory for Phenomics and Diagnostic, Department of Medical Research, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (Y.-S.C.); (S.-Y.W.)
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- Correspondence: ; Tel.: +886-7-731-7123
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Poljsak B, Kovač V, Levec T, Milisav I. Nature Versus Nurture: What Can be Learned from the Oldest-Old's Claims About Longevity? Rejuvenation Res 2021; 24:262-273. [PMID: 33544039 DOI: 10.1089/rej.2020.2379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Beneficial genetic or environmental factors that influence the length and quality of life can be evaluated while studying supercentenarians. The oldest-old can withstand serious/fatal illnesses more than their peers and/or their aging rate is decreased. Supercentenarians are an interesting group of individuals whose lifestyle is not particularly healthy according to the common guidelines, namely some of them seem to have similar harmful behaviors, but still manage to stay healthier for longer, and while eventually dying from the same degenerative diseases as the general population, they develop symptoms 20-30 years later. As there are not many supercentenarians by definition, it is worthwhile to diligently collect their data to enable future meta-analyses on larger samples; much can be learned from supercentenarians' habits and lifestyle choices about the aging process. Contributions of genetics, lifestyle choices, and epigenetics to their extended life span are discussed here.
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Affiliation(s)
- Borut Poljsak
- Laboratory of Oxidative Stress Research, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | - Vito Kovač
- Laboratory of Oxidative Stress Research, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | - Tina Levec
- Faculty of Health Sciences, University of Ljubljana, Chair of Public Health, Ljubljana, Slovenia
| | - Irina Milisav
- Laboratory of Oxidative Stress Research, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia.,Faculty of Medicine, Institute of Pathophysiology, University of Ljubljana, Ljubljana, Slovenia
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Tang X, Wei Y, Wang J, Chen S, Cai J, Tang J, Xu X, Long B, Yu G, Zhang Z, He M, Qin J. Association between SIRT6 Methylation and Human Longevity in a Chinese Population. Public Health Genomics 2020; 23:190-199. [PMID: 33238266 DOI: 10.1159/000508832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 05/19/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Sirtuin 6 gene (SIRT6) is a longevity gene that is involved in a variety of metabolic pathways, but the relationship between SIRT6 methylation and longevity has not been clarified. METHODS We conducted a case-control study on 129 residents with a family history of longevity (1 of parents, themselves, or siblings aged ≥90 years) and 86 individuals without a family history of exceptional longevity to identify the association. DNA pyrosequencing was performed to analyze the methylation status of SIRT6 promoter CpG sites. qRT-PCR and ELISA were used to estimate the SIRT6 messenger RNA (mRNA) levels and protein content. Six CpG sites (P1-P6) were identified as methylation variable positions in the SIRT6 promoter region. RESULTS At the P2 and P5 CpG sites, the methylation rates of the longevity group were lower than those of the control group (p < 0.001 and p = 0.009), which might be independent determinants of longevity. The mRNA and protein levels of SIRT6 decreased in the control group (p < 0.0001 and p = 0.038). The mRNA level negatively correlated with the methylation rates at the P2 (rs = -0.173, p = 0.011) and P5 sites (rs = -0.207, p = 0.002). Furthermore, the protein content positively correlated with the methylation rate at the P5 site (rs = 0.136, p = 0.046) but showed no significant correlation with the methylation rate at the P2 site. CONCLUSION The low level of SIRT6 methylation may be a potential protective factor of Chinese longevity.
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Affiliation(s)
- Xu Tang
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China.,Department of General Medicine, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Yi Wei
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Jian Wang
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Shiyi Chen
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Jiansheng Cai
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Jiexia Tang
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Xia Xu
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Bingshuang Long
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Guoqi Yu
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Zhiyong Zhang
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China.,Department of Occupational and Environmental Health, School of Public Health, Guilin Medical University, Guilin, China
| | - Min He
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China,
| | - Jian Qin
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China.,The First People's Hospital of Nanning, Nanning, China
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Airini R, Iordache F, Alexandru D, Savu L, Epureanu FB, Mihailescu D, Amuzescu B, Maniu H. Senescence-induced immunophenotype, gene expression and electrophysiology changes in human amniocytes. J Cell Mol Med 2019; 23:7233-7245. [PMID: 31478614 PMCID: PMC6815807 DOI: 10.1111/jcmm.14495] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 05/21/2019] [Accepted: 05/26/2019] [Indexed: 12/23/2022] Open
Abstract
The aim of the study was to evidence replicative senescence‐induced changes in human amniocytes via flow cytometry, quantitative reverse‐transcription‐polymerase chain reaction (qRT‐PCR) and automated/manual patch‐clamp. Both cryopreserved and senescent amniocytes cultured in BIO‐AMF‐2 medium featured high percentages of pluripotency cell surface antigens SSEA‐1, SSEA‐4, TRA1‐60, TRA1‐81 (assessed by flow cytometry) and expression of pluripotency markers Oct4 (Pou5f1) and Nanog (by qRT‐PCR). We demonstrated in senescent vs cryopreserved amniocytes decreases in mesenchymal stem cell surface markers. Senescence‐associated β‐galactosidase stained only senescent amniocytes, and they showed no deoxyuridine incorporation. The gene expression profile revealed a secretory phenotype of senescent amniocytes (increased interleukin (IL)‐1α, IL‐6, IL‐8, transforming growth factor β, nuclear factor κB p65 expression), increases for cell cycle‐regulating genes (p16INK4A), cytoskeletal elements (β‐actin); HMGB1, c‐Myc, Bcl‐2 showed reduced changes and p21, MDM2 decreased. Via patch‐clamp we identified five ion current components: outward rectifier K+ current, an inactivatable component, big conductance Ca2+‐dependent K+ channels (BK) current fluctuations, Na+ current, and inward rectifier K+ current. Iberiotoxin 100 nmol/L blocked 71% of BK fluctuations, and lidocaine 200 μmol/L exerted use‐dependent Na+ current block. Transient receptor potential (TRP)M7‐like current density at −120 mV was significantly increased in senescent amniocytes. The proinflammatory profile acquired by senescent amniocytes in vitro may prevent their use in clinical therapies for immunosuppression, antiapoptotic and healing effects.
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Affiliation(s)
- Razvan Airini
- Department of Biophysics & Physiology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Florin Iordache
- Department of Regenerative Medicine, "N. Simionescu" Institute of Cell Biology and Pathology, Bucharest, Romania
| | - Dorin Alexandru
- Department of Regenerative Medicine, "N. Simionescu" Institute of Cell Biology and Pathology, Bucharest, Romania
| | - Lorand Savu
- Genetic Lab S.R.L., Bucharest, Romania.,Fundeni Clinical Institute, Bucharest, Romania
| | - Florin Bogdan Epureanu
- Department of Biophysics & Physiology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Dan Mihailescu
- Department of Biophysics & Physiology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Bogdan Amuzescu
- Department of Biophysics & Physiology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Horia Maniu
- Department of Regenerative Medicine, "N. Simionescu" Institute of Cell Biology and Pathology, Bucharest, Romania
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Costa D, Scognamiglio M, Fiorito C, Benincasa G, Napoli C. Genetic background, epigenetic factors and dietary interventions which influence human longevity. Biogerontology 2019; 20:605-626. [PMID: 31309340 DOI: 10.1007/s10522-019-09824-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/10/2019] [Indexed: 02/07/2023]
Abstract
Longevity is mainly conditioned by genetic, epigenetic and environmental factors. Different genetic modifications seem to be positively associated to longevity, including SNPs in SIRT1, APOE, FOXO3A, ACE, ATM, NOS1 and NOS2 gene. Epigenetic changes as DNA hyper- and hypo-methylation influence significantly human longevity by activating/deactivating different genes involved in physiological mechanisms. Several studies have confirmed that centenarians have a lower DNA methylation content compared to young subjects, which showed more homogeneously methylated DNA region. Also the up-regulation of miR-21 seems to be more associated with longevity in different populations of long-lived subjects, suggesting its role as potential epigenetic biomarkers. A non-pharmacological treatment that seems to contrast age-related diseases and promote longevity is represented by dietary intervention. It has been evaluated the effects of dietary restriction of both single nutrients or total calories to extend lifespan. However, in daily practice it is very difficult to guarantee adherence/compliance of the subjects to dietary restriction and at the same time avoid dangerous nutritional deficiencies. As consequence, the attention has focused on a variety of substances both drugs and natural compounds able to mime the beneficial effects of caloric restriction, including resveratrol, quercetin, rapamycin, metformin and 2-deoxy-D-glucose.
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Affiliation(s)
- Dario Costa
- U.O.C. of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Clinical Department of Internal Medicine and Specialistics, University of Campania "L. Vanvitelli", Piazza Miraglia, 2, 80138, Naples, Italy.
| | - Michele Scognamiglio
- U.O.C. of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Clinical Department of Internal Medicine and Specialistics, University of Campania "L. Vanvitelli", Piazza Miraglia, 2, 80138, Naples, Italy
| | - Carmela Fiorito
- U.O.C. of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Clinical Department of Internal Medicine and Specialistics, University of Campania "L. Vanvitelli", Piazza Miraglia, 2, 80138, Naples, Italy
| | - Giuditta Benincasa
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Claudio Napoli
- U.O.C. of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Clinical Department of Internal Medicine and Specialistics, University of Campania "L. Vanvitelli", Piazza Miraglia, 2, 80138, Naples, Italy.,Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
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Watanabe R, Kanno SI, Mohammadi Roushandeh A, Ui A, Yasui A. Nucleosome remodelling, DNA repair and transcriptional regulation build negative feedback loops in cancer and cellular ageing. Philos Trans R Soc Lond B Biol Sci 2018; 372:rstb.2016.0473. [PMID: 28847829 DOI: 10.1098/rstb.2016.0473] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2017] [Indexed: 12/12/2022] Open
Abstract
Nucleosome remodelling (NR) regulates transcription in an ATP-dependent manner, and influences gene expression required for development and cellular functions, including those involved in anti-cancer and anti-ageing processes. ATP-utilizing chromatin assembly and remodelling factor (ACF) and Brahma-associated factor (BAF) complexes, belonging to the ISWI and SWI/SNF families, respectively, are involved in various types of DNA repair. Suppression of several BAF factors makes U2OS cells significantly sensitive to X-rays, UV and especially to cisplatin, and these BAF factors contribute to the accumulation of repair proteins at various types of DNA damage and to DNA repair. Recent cancer genome sequencing and expression analysis has shown that BAF factors are frequently mutated or, more frequently, silenced in various types of cancer cells. Thus, those cancer cells are potentially X-ray- and especially cisplatin-sensitive, suggesting a way of optimizing current cancer therapy. Recent single-stem cell analysis suggests that mutations and epigenetic changes influence stem cell functionality leading to cellular ageing. Genetic and epigenetic changes in the BAF factors diminish DNA repair as well as transcriptional regulation activities, and DNA repair defects in turn negatively influence NR and transcriptional regulation. Thus, they build negative feedback loops, which accelerate both cellular senescence and transformation as common and rare cellular events, respectively, causing cellular ageing.This article is part of the themed issue 'Chromatin modifiers and remodellers in DNA repair and signalling'.
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Affiliation(s)
- Reiko Watanabe
- Division of Dynamic Proteome and IDAC Fellow Research Group for DNA Repair and Dynamic Proteome Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai 980-8575, Japan
| | - Shin-Ichiro Kanno
- Division of Dynamic Proteome and IDAC Fellow Research Group for DNA Repair and Dynamic Proteome Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai 980-8575, Japan
| | - Amaneh Mohammadi Roushandeh
- Division of Dynamic Proteome and IDAC Fellow Research Group for DNA Repair and Dynamic Proteome Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai 980-8575, Japan
| | - Ayako Ui
- Division of Dynamic Proteome and IDAC Fellow Research Group for DNA Repair and Dynamic Proteome Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai 980-8575, Japan
| | - Akira Yasui
- Division of Dynamic Proteome and IDAC Fellow Research Group for DNA Repair and Dynamic Proteome Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai 980-8575, Japan
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Mather KA, Armstrong NJ, Thalamuthu A, Kwok JBJ. Tick tock: DNA methylation, the epigenetic clock and exceptional longevity. Epigenomics 2016; 8:1577-1582. [DOI: 10.2217/epi-2016-0137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Karen A Mather
- Centre for Healthy Brain Aging, School of Psychiatry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Nicola J Armstrong
- Department of Mathematics & Statistics, Murdoch University, Murdoch, WA 6150, Australia
| | - Anbupalam Thalamuthu
- Centre for Healthy Brain Aging, School of Psychiatry, University of New South Wales, Sydney, NSW 2052, Australia
| | - John BJ Kwok
- Neuroscience Research Australia, Sydney, NSW 2031, Australia
- School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
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