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Ferreira A, Harter A, Afreen S, Kanai K, Batori S, Redei EE. The WMI Rat of Premature Cognitive Aging Presents Intrinsic Vulnerability to Oxidative Stress in Primary Neurons and Astrocytes Compared to Its Nearly Isogenic WLI Control. Int J Mol Sci 2024; 25:1692. [PMID: 38338968 PMCID: PMC10855588 DOI: 10.3390/ijms25031692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
The primary neuronal and astrocyte culture described here is from the stress-hyperreactive Wistar Kyoto (WKY) More Immobile (WMI) rat with premature aging-related memory deficit, and its nearly isogenic control, the Less Immobile (WLI) strain. Primary WMI hippocampal neurons and cortical astrocytes are significantly more sensitive to oxidative stress (OS) generated by administration of H2O2 compared to WLI cells as measured by the trypan blue cell viability assay. Intrinsic genetic vulnerability is also suggested by the decreased gene expression in WMI neurons of catalase (Cat), and in WMI cortical astrocytes of insulin-like growth factor 2 (Igf2), synuclein gamma (Sncg) and glutathione peroxidase 2 (Gpx2) compared to WLI. The expressions of several mitochondrial genes are dramatically increased in response to H2O2 treatment in WLI, but not in WMI cortical astrocytes. We propose that the vulnerability of WMI neurons to OS is due to the genetic differences between the WLI and WMI. Furthermore, the upregulation of mitochondrial genes may be a compensatory response to the generation of free radicals by OS in the WLIs, and this mechanism is disturbed in the WMIs. Thus, this pilot study suggests intrinsic vulnerabilities in the WMI hippocampal neurons and cortical astrocytes, and affirm the efficacy of this bimodal in vitro screening system for finding novel drug targets to prevent oxidative damage in illnesses.
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Affiliation(s)
- Adriana Ferreira
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (A.F.)
| | - Aspen Harter
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA;
| | - Sana Afreen
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (A.F.)
| | - Karoly Kanai
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Sandor Batori
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Eva E. Redei
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA;
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2
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Holcombe J, Weavers H. Functional-metabolic coupling in distinct renal cell types coordinates organ-wide physiology and delays premature ageing. Nat Commun 2023; 14:8405. [PMID: 38110414 PMCID: PMC10728150 DOI: 10.1038/s41467-023-44098-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 11/30/2023] [Indexed: 12/20/2023] Open
Abstract
Precise coupling between cellular physiology and metabolism is emerging as a vital relationship underpinning tissue health and longevity. Nevertheless, functional-metabolic coupling within heterogenous microenvironments in vivo remains poorly understood due to tissue complexity and metabolic plasticity. Here, we establish the Drosophila renal system as a paradigm for linking mechanistic analysis of metabolism, at single-cell resolution, to organ-wide physiology. Kidneys are amongst the most energetically-demanding organs, yet exactly how individual cell types fine-tune metabolism to meet their diverse, unique physiologies over the life-course remains unclear. Integrating live-imaging of metabolite and organelle dynamics with spatio-temporal genetic perturbation within intact functional tissue, we uncover distinct cellular metabolic signatures essential to support renal physiology and healthy ageing. Cell type-specific programming of glucose handling, PPP-mediated glutathione regeneration and FA β-oxidation via dynamic lipid-peroxisomal networks, downstream of differential ERR receptor activity, precisely match cellular energetic demands whilst limiting damage and premature senescence; however, their dramatic dysregulation may underlie age-related renal dysfunction.
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Affiliation(s)
- Jack Holcombe
- School of Biochemistry, Biomedical Sciences, University of Bristol, Bristol, BS8 1TD, UK
| | - Helen Weavers
- School of Biochemistry, Biomedical Sciences, University of Bristol, Bristol, BS8 1TD, UK.
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3
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Ortiz A, Sun H, Kluz T, Matsui MS, Carle T, Gan D, Gordon T, Gildea L, Costa M. A combination of three antioxidants decreases the impact of rural particulate pollution in Normal human keratinocytes. Int J Cosmet Sci 2023; 45:791-801. [PMID: 37602524 DOI: 10.1111/ics.12888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/24/2023] [Accepted: 08/01/2023] [Indexed: 08/22/2023]
Abstract
OBJECTIVE It is well established that exposure of human skin to airborne pollution, particularly in the form of particulate matter sized 2.5 μm (PM2.5 ), is associated with oxidative stress, DNA damage and inflammation, leading to premature signs of skin aging. Because much of the damage results from oxidative stress, we examined the effects of a topical composition containing three antioxidants in an in vitro model system to assess the potential for amelioration of premature aging. The use of multiple antioxidants was of interest based on the typical composition of therapeutic skincare products. It is important to determine the efficacy of multiple antioxidants together and develop a short-term assay for larger scale efficacy testing. METHODS Normal human epidermal keratinocytes were exposed to a rural-derived source of PM2.5 in the presence and absence of an antioxidant mixture of resveratrol, niacinamide and GHK peptide. Endpoints related to inflammation, premature aging and carcinogenicity were monitored after 5 h of exposure and included IL-6, CXCL10, MMP-1 and NRF2. Differentially expressed genes were monitored by RNA-seq. RESULTS Pre-treatment of keratinocytes with the antioxidant preparation in the absence of PM2.5 reduced baseline levels of MMP-1, IL-6 and CYP1A1 and reduced PM2.5 -induced increases in all four endpoints, MMP-1, IL-6, CXCL10 and CYP1A1. Antioxidants significantly increased NRF2 protein in the presence of PM2.5 , indicating a protective response. RNA-seq interrogation of antioxidant-treated cells further showed increased expression of NRF2 inducible genes. The expression of CYP1A1 and genes related to aryl hydrocarbon activation were induced by PM2.5 and suppressed by antioxidants. CONCLUSIONS Specific signalling pathways known to be correlated with skin inflammation and aging were examined based on their suitability for use in efficacy testing for the prevention of skin damage due to ambient hydrocarbon pollution. Endpoints examined after only 5 h of exposure provide a useful method amenable to high through-put screening. The results obtained reinforce the concept that a multiple antioxidant preparation, topically applied, may reduce pro-inflammatory signalling and cellular damage and thereby reduce premature skin aging due to exposure to rural-derived airborne pollution.
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Affiliation(s)
- Angelica Ortiz
- Environmental Medicine, NYU Grossman School of Medicine, New York University, New York City, New York, USA
| | - Hong Sun
- Environmental Medicine, NYU Grossman School of Medicine, New York University, New York City, New York, USA
| | - Thomas Kluz
- Environmental Medicine, NYU Grossman School of Medicine, New York University, New York City, New York, USA
| | - Mary S Matsui
- Mary Kay Inc, Lewisville, Texas, USA
- Skin Biology Research Group, Teaneck, New Jersey, USA
| | | | - David Gan
- Mary Kay Inc, Lewisville, Texas, USA
| | - Terry Gordon
- Environmental Medicine, NYU Grossman School of Medicine, New York University, New York City, New York, USA
| | | | - Max Costa
- Environmental Medicine, NYU Grossman School of Medicine, New York University, New York City, New York, USA
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Li W, Wang X, Dong Y, Huo Q, Yue T, Wu X, Lu L, Zhang J, Zhao Y, Dong H, Li D. Nicotinamide riboside intervention alleviates hematopoietic system injury of ionizing radiation-induced premature aging mice. Aging Cell 2023; 22:e13976. [PMID: 37650560 PMCID: PMC10652312 DOI: 10.1111/acel.13976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 09/01/2023] Open
Abstract
Radiotherapy destroys cancer cells and inevitably harms normal human tissues, causing delayed effects of acute radiation exposure (DEARE) and accelerating the aging process in most survivors. However, effective methods for preventing premature aging induced by ionizing radiation are lacking. In this study, the premature aging mice of DEARE model was established after 6 Gy total body irradiation (TBI). Then the therapeutic effects and mechanism of nicotinamide riboside on the premature aging mice were evaluated. The results showed that 6 Gy TBI induced premature aging of the hematopoietic system in mice. Nicotinamide riboside treatment reversed aging spleen phenotypes by inhibiting cellular senescence and ameliorated serum metabolism profiles. Further results demonstrated that nicotinamide riboside supplementation alleviated the myeloid bias of hematopoietic stem cells and temporarily restored the regenerative capacity of hematopoietic stem cells probably by mitigating the reactive oxygen species activated GCN2/eIF2α/ATF4 signaling pathway. The results of this study firstly indicate that nicotinamide riboside shows potential as a DEARE therapeutic agent for radiation-exposed populations and patients who received radiotherapy.
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Affiliation(s)
- Wenxuan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Xinyue Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Yinping Dong
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Qidong Huo
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Tongpeng Yue
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Xin Wu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Lu Lu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Junling Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Yu Zhao
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Hui Dong
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
| | - Deguan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Science & Peking Union Medical CollegeTianjinChina
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Haj M, Levon A, Frey Y, Hourvitz N, Campisi J, Tzfati Y, Elkon R, Ziv Y, Shiloh Y. Accelerated replicative senescence of ataxia-telangiectasia skin fibroblasts is retained at physiologic oxygen levels, with unique and common transcriptional patterns. Aging Cell 2023; 22:e13869. [PMID: 37254625 PMCID: PMC10410012 DOI: 10.1111/acel.13869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 06/01/2023] Open
Abstract
The genetic disorder, ataxia-telangiectasia (A-T), is caused by loss of the homeostatic protein kinase, ATM, and combines genome instability, tissue degeneration, cancer predisposition, and premature aging. Primary fibroblasts from A-T patients exhibit premature senescence when grown at ambient oxygen concentration (21%). Here, we show that reducing oxygen concentration to a physiological level range (3%) dramatically extends the proliferative lifespan of human A-T skin fibroblasts. However, they still undergo senescence earlier than control cells grown under the same conditions and exhibit high genome instability. Comparative RNA-seq analysis of A-T and control fibroblasts cultured at 3% oxygen followed by cluster analysis of differentially expressed genes and functional enrichment analysis, revealed distinct transcriptional dynamics in A-T fibroblasts senescing in physiological oxygen concentration. While some transcriptional patterns were similar to those observed during replicative senescence of control cells, others were unique to the senescing A-T cells. We observed in them a robust activation of interferon-stimulated genes, with undetected expression the interferon genes themselves. This finding suggests an activation of a non-canonical cGAS-STING-mediated pathway, which presumably responds to cytosolic DNA emanating from extranuclear micronuclei detected in these cells. Senescing A-T fibroblasts also exhibited a marked, intriguely complex alteration in the expression of genes associated with extracellular matrix (ECM) remodeling. Notably, many of the induced ECM genes encode senescence-associated secretory phenotype (SASP) factors known for their paracrine pro-fibrotic effects. Our data provide a molecular dimension to the segmental premature aging observed in A-T patients and its associated symptoms, which develop as the patients advance in age.
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Affiliation(s)
- Majd Haj
- Department of Human Molecular Genetics and BiochemistryTel Aviv University School of MedicineTel AvivIsrael
| | - Amit Levon
- Department of Human Molecular Genetics and BiochemistryTel Aviv University School of MedicineTel AvivIsrael
| | - Yann Frey
- Department of Human Molecular Genetics and BiochemistryTel Aviv University School of MedicineTel AvivIsrael
| | - Noa Hourvitz
- The Alexander Silberman Institute of Life SciencesThe Hebrew University of JerusalemJerusalemIsrael
| | | | - Yehuda Tzfati
- The Alexander Silberman Institute of Life SciencesThe Hebrew University of JerusalemJerusalemIsrael
| | - Ran Elkon
- Department of Human Molecular Genetics and BiochemistryTel Aviv University School of MedicineTel AvivIsrael
| | - Yael Ziv
- Department of Human Molecular Genetics and BiochemistryTel Aviv University School of MedicineTel AvivIsrael
| | - Yosef Shiloh
- Department of Human Molecular Genetics and BiochemistryTel Aviv University School of MedicineTel AvivIsrael
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Tiemann J, Lindenkamp C, Wagner T, Brodehl A, Plümers R, Faust-Hinse I, Knabbe C, Hendig D. The Consideration of Pseudoxanthoma Elasticum as a Progeria Syndrome. FRONT BIOSCI-LANDMRK 2023; 28:55. [PMID: 37005749 DOI: 10.31083/j.fbl2803055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 03/22/2023]
Abstract
BACKGROUND Pseudoxanthoma elasticum (PXE) is a rare autosomal recessive disorder caused by mutations in the ATP-binding cassette sub-family C member 6 (ABCC6) gene. Patients with PXE show molecular and clinical characteristics of known premature aging syndromes, such as Hutchinson-Gilford progeria syndrome (HGPS). Nevertheless, PXE has only barely been discussed against the background of premature aging, although a detailed characterization of aging processes in PXE could contribute to a better understanding of its pathogenesis. Thus, this study was performed to evaluate whether relevant factors which are known to play a role in accelerated aging processes in HGPS pathogenesis are also dysregulated in PXE. METHODS Primary human dermal fibroblasts from healthy donors (n = 3) and PXE patients (n = 3) and were cultivated under different culture conditions as our previous studies point towards effects of nutrient depletion on PXE phenotype. Gene expression of lamin A, lamin C, nucleolin, farnesyltransferase and zinc metallopeptidase STE24 were determined by quantitative real-time polymerase chain reaction. Additionally, protein levels of lamin A, C and nucleolin were evaluated by immunofluorescence and the telomere length was analyzed. RESULTS We could show a significant decrease of lamin A and C gene expression in PXE fibroblasts under nutrient depletion compared to controls. The gene expression of progerin and farnesyltransferase showed a significant increase in PXE fibroblasts when cultivated in 10% fetal calf serum (FCS) compared to controls. Immunofluorescence microscopy of lamin A/C and nucleolin and mRNA expression of zinc metallopeptidase STE24 and nucleolin showed no significant changes in any case. The determination of the relative telomere length showed significantly longer telomeres for PXE fibroblasts compared to controls when cultivated in 10% FCS. CONCLUSIONS These data indicate that PXE fibroblasts possibly undergo a kind of senescence which is independent of telomere damage and not triggered by defects of the nuclear envelope or nucleoli deformation.
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Affiliation(s)
- Janina Tiemann
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany
| | - Christopher Lindenkamp
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany
| | - Thomas Wagner
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany
| | - Andreas Brodehl
- E. & H. Klessmann Institute for Cardiovascular Research & Development, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany
| | - Ricarda Plümers
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany
| | - Isabel Faust-Hinse
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany
| | - Cornelius Knabbe
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany
| | - Doris Hendig
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany
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De Tollenaere M, Chapuis E, Martinez J, Paulus C, Dupont J, Don Simoni E, Robe P, Sennelier-Portet B, Auriol D, Scandolera A, Reynaud R. Gardenia jasminoides Extract, with a Melatonin-like Activity, Protects against Digital Stress and Reverses Signs of Aging. Int J Mol Sci 2023; 24:ijms24054948. [PMID: 36902379 PMCID: PMC10003113 DOI: 10.3390/ijms24054948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Digital stress is a newly identified cosmetic stress that is mainly characterized by blue light exposure. The effects of this stress have become increasingly important with the emergence of personal digital devices, and its deleterious effects on the body are now well-known. Blue light has been observed to cause perturbation of the natural melatonin cycle and skin damage similar to that from UVA exposure, thus leading to premature aging. "A melatonin-like ingredient" was discovered in the extract of Gardenia jasminoides, which acts as a filter against blue light and as a melatonin-like ingredient to prevent and stop premature aging. The extract showed significant protective effects on the mitochondrial network of primary fibroblasts, a significant decrease of -86% in oxidized proteins on skin explants, and preservation of the natural melatonin cycle in the co-cultures of sensory neurons and keratinocytes. Upon analysis using in silico methods, only the crocetin form, released through skin microbiota activation, was found to act as a melatonin-like molecule by interacting with the MT1-receptor, thus confirming its melatonin-like properties. Finally, clinical studies revealed a significant decrease in wrinkle number of -21% in comparison to the placebo. The extract showed strong protection against blue light damage and the prevention of premature aging through its melatonin-like properties.
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Affiliation(s)
- Morgane De Tollenaere
- R&D Department, Givaudan France SAS, Route de Bazancourt, 51110 Pomacle, France
- Correspondence: (M.D.T.); (A.S.)
| | - Emilie Chapuis
- R&D Department, Givaudan France SAS, Route de Bazancourt, 51110 Pomacle, France
| | - Jessy Martinez
- R&D Department, Naturex France Avignon (Givaudan), 250 Rue Pierre Bayle, 84140 Avignon, France
| | - Chantal Paulus
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | - Joran Dupont
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | - Eglantine Don Simoni
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | - Patrick Robe
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | | | - Daniel Auriol
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | - Amandine Scandolera
- R&D Department, Givaudan France SAS, Route de Bazancourt, 51110 Pomacle, France
- Correspondence: (M.D.T.); (A.S.)
| | - Romain Reynaud
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
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Wang L, Yang J, Tan W, Guo Y, Li J, Duan C, Wei G, Chou M. Macrophage migration inhibitory factor MtMIF3 prevents the premature aging of Medicago truncatula nodules. Plant Cell Environ 2023; 46:1004-1017. [PMID: 36515398 DOI: 10.1111/pce.14515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 12/01/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine involved in immune response in animals. However, the role of MIFs in plants such as Medicago truncatula, particularly in symbiotic nitrogen fixation, remains unclear. An investigation of M. truncatula-Sinorhizobium meliloti symbiosis revealed that MtMIF3 was mainly expressed in the nitrogen-fixing zone of the nodules. Silencing MtMIF3 using RNA interference (Ri) technology resulted in increased nodule numbers but higher levels of bacteroid degradation in the infected cells of the nitrogen-fixing zone, suggesting that premature aging was induced in MtMIF3-Ri nodules. In agreement with this conclusion, the activities of nitrogenase, superoxide dismutase and catalase were lower than those in controls, but cysteine proteinase activity was increased in nodulated roots at 28 days postinoculation. In contrast, the overexpression of MtMIF3 inhibited nodule senescence. MtMIF3 is localized in the plasma membrane, nucleus, and cytoplasm, where it interacts with methionine sulfoxide reductase B (MsrB), which is also localized in the chloroplasts of tobacco leaf cells. Taken together, these results suggest that MtMIF3 prevents premature nodule aging and protects against oxidation by interacting with MtMsrB.
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Affiliation(s)
- Li Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Jieyu Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Wenjun Tan
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Yile Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Jiaqi Li
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Chuntao Duan
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Gehong Wei
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Minxia Chou
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
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9
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Rajabian N, Ikhapoh I, Shahini S, Choudhury D, Thiyagarajan R, Shahini A, Kulczyk J, Breed K, Saha S, Mohamed MA, Udin SB, Stablewski A, Seldeen K, Troen BR, Personius K, Andreadis ST. Methionine adenosyltransferase2A inhibition restores metabolism to improve regenerative capacity and strength of aged skeletal muscle. Nat Commun 2023; 14:886. [PMID: 36797255 PMCID: PMC9935517 DOI: 10.1038/s41467-023-36483-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/01/2023] [Indexed: 02/18/2023] Open
Abstract
We investigate the age-related metabolic changes that occur in aged and rejuvenated myoblasts using in vitro and in vivo models of aging. Metabolic and signaling experiments reveal that human senescent myoblasts and myoblasts from a mouse model of premature aging suffer from impaired glycolysis, insulin resistance, and generate Adenosine triphosphate by catabolizing methionine via a methionine adenosyl-transferase 2A-dependant mechanism, producing significant levels of ammonium that may further contribute to cellular senescence. Expression of the pluripotency factor NANOG downregulates methionine adenosyltransferase 2 A, decreases ammonium, restores insulin sensitivity, increases glucose uptake, and enhances muscle regeneration post-injury. Similarly, selective inhibition of methionine adenosyltransferase 2 A activates Akt2 signaling, repairs pyruvate kinase, restores glycolysis, and enhances regeneration, which leads to significant enhancement of muscle strength in a mouse model of premature aging. Collectively, our investigation indicates that inhibiting methionine metabolism may restore age-associated impairments with significant gain in muscle function.
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Affiliation(s)
- Nika Rajabian
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA
| | - Izuagie Ikhapoh
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA
| | - Shahryar Shahini
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA
| | - Debanik Choudhury
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA
| | - Ramkumar Thiyagarajan
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo and Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - Aref Shahini
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA
| | - Joseph Kulczyk
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA
| | - Kendall Breed
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA
| | - Shilpashree Saha
- Department of Biomedical Engineering, University at Buffalo, Amherst, NY, USA
| | - Mohamed Alaa Mohamed
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA
| | - Susan B Udin
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Aimee Stablewski
- Gene Targeting and Transgenic Shared Resource, Roswell Park Comprehensive Cancer Institute, Buffalo, NY, USA
| | - Kenneth Seldeen
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo and Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - Bruce R Troen
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo and Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - Kirkwood Personius
- Department of Rehabilitation Science, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Stelios T Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY, USA.
- Department of Biomedical Engineering, University at Buffalo, Amherst, NY, USA.
- Center of Excellence in Bioinformatics and Life Sciences, Buffalo, NY, USA.
- Cell, Gene and Tissue Engineering (CGTE) Center, School of Engineering and Applied Sciences, University at Buffalo, Amherst, NY, USA.
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10
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Selle J, Bohl K, Höpker K, Wilke R, Dinger K, Kasper P, Abend B, Schermer B, Müller RU, Kurschat C, Nüsken KD, Nüsken E, Meyer D, Savai Pullamsetti S, Schumacher B, Dötsch J, Alcazar MAA. Perinatal Obesity Sensitizes for Premature Kidney Aging Signaling. Int J Mol Sci 2023; 24:ijms24032508. [PMID: 36768831 PMCID: PMC9916864 DOI: 10.3390/ijms24032508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 12/08/2022] [Accepted: 12/18/2022] [Indexed: 01/31/2023] Open
Abstract
Chronic Kidney Disease (CKD), a global health burden, is strongly associated with age-related renal function decline, hypertension, and diabetes, which are all frequent consequences of obesity. Despite extensive studies, the mechanisms determining susceptibility to CKD remain insufficiently understood. Clinical evidence together with prior studies from our group showed that perinatal metabolic disorders after intrauterine growth restriction or maternal obesity adversely affect kidney structure and function throughout life. Since obesity and aging processes converge in similar pathways we tested if perinatal obesity caused by high-fat diet (HFD)-fed dams sensitizes aging-associated mechanisms in kidneys of newborn mice. The results showed a marked increase of γH2AX-positive cells with elevated 8-Oxo-dG (RNA/DNA damage), both indicative of DNA damage response and oxidative stress. Using unbiased comprehensive transcriptomics we identified compartment-specific differentially-regulated signaling pathways in kidneys after perinatal obesity. Comparison of these data to transcriptomic data of naturally aged kidneys and prematurely aged kidneys of genetic modified mice with a hypomorphic allele of Ercc1, revealed similar signatures, e.g., inflammatory signaling. In a biochemical approach we validated pathways of inflammaging in the kidneys after perinatal obesity. Collectively, our initial findings demonstrate premature aging-associated processes as a consequence of perinatal obesity that could determine the susceptibility for CKD early in life.
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Affiliation(s)
- Jaco Selle
- Translational Experimental Pediatrics—Experimental Pulmonology, Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
| | - Katrin Bohl
- Department of Medicine II, Nephrology Research Laboratory, University Hospital of Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
| | - Katja Höpker
- Department of Medicine II, Nephrology Research Laboratory, University Hospital of Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
| | - Rebecca Wilke
- Translational Experimental Pediatrics—Experimental Pulmonology, Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
| | - Katharina Dinger
- Translational Experimental Pediatrics—Experimental Pulmonology, Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
| | - Philipp Kasper
- Department of Gastroenterology and Hepatology, University Hospital Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
| | - Bastian Abend
- Translational Experimental Pediatrics—Experimental Pulmonology, Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
| | - Bernhard Schermer
- Department of Medicine II, Nephrology Research Laboratory, University Hospital of Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University Hospital Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
| | - Roman-Ulrich Müller
- Department of Medicine II, Nephrology Research Laboratory, University Hospital of Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University Hospital Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
| | - Christine Kurschat
- Department of Medicine II, Nephrology Research Laboratory, University Hospital of Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University Hospital Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
| | - Kai-Dietrich Nüsken
- Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
| | - Eva Nüsken
- Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
| | - David Meyer
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Institute for Genome Stability in Aging and Disease, Medical Faculty, University Hospital Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
| | - Soni Savai Pullamsetti
- Department of Lung Development and Remodeling, Max-Planck-Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), 61231 Bad Nauheim, Germany
- Institute for Lung Health (ILH), Universities of Gießen and Marburg Lung Centre (UGMLC), Cardiopulmonary Institute (CPI), Member of the German Center of Lung Research (DZL), 35392 Gießen, Germany
| | - Björn Schumacher
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Institute for Genome Stability in Aging and Disease, Medical Faculty, University Hospital Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
| | - Jörg Dötsch
- Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
| | - Miguel A. Alejandre Alcazar
- Translational Experimental Pediatrics—Experimental Pulmonology, Department of Pediatric and Adolescent Medicine, University Hospital Cologne, 50931 Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University Hospital Cologne, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
- Institute for Lung Health (ILH), Universities of Gießen and Marburg Lung Centre (UGMLC), Cardiopulmonary Institute (CPI), Member of the German Center of Lung Research (DZL), 35392 Gießen, Germany
- Correspondence: ; Tel.: +49-221-478-96876; Fax: +49-221-478-46868
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11
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Abstract
Normal spermatogenesis and sperm function are crucial for male fertility. The effects of healthy testicular aging and testicular premature aging on spermatogenesis, sperm function, and the spermatogenesis microenvironment cannot be ignored. Compared with younger men, the testis of older men tends to have disturbed spermatogenic processes, sperm abnormalities, sperm dysfunction, and impaired Sertoli and Leydig cells, which ultimately results in male infertility. Various exogenous and endogenous factors also contribute to pathological testicular premature aging, such as adverse environmental stressors and gene mutations. Mechanistically, Y-chromosomal microdeletions, increase in telomere length and oxidative stress, accumulation of DNA damage with decreased repair ability, alterations in epigenetic modifications, miRNA and lncRNA expression abnormalities, have been associated with impaired male fertility due to aging. In recent years, the key molecules and signaling pathways that regulate testicular aging and premature aging have been identified, thereby providing new strategies for diagnosis and treatment. This review provides a comprehensive overview of the underlying mechanisms of aging on spermatogenesis. Furthermore, potential rescue measures for reproductive aging have been discussed. Finally, the inadequacy of testicular aging research and future directions for research have been envisaged to aid in the diagnosis and treatment of testicular aging and premature aging.
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Affiliation(s)
- Shijue Dong
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Chen Chen
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Jiali Zhang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Yuan Gao
- Laboratory Animal Center, Nantong University, Nantong, China
| | - Xuhui Zeng
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Xiaoning Zhang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
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12
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Lin H, Mensch J, Haschke M, Jäger K, Köttgen B, Dernedde J, Orsó E, Walter M. Establishment and Characterization of hTERT Immortalized Hutchinson–Gilford Progeria Fibroblast Cell Lines. Cells 2022; 11:cells11182784. [PMID: 36139359 PMCID: PMC9497314 DOI: 10.3390/cells11182784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/29/2022] [Accepted: 09/02/2022] [Indexed: 11/22/2022] Open
Abstract
Hutchinson–Gilford progeria syndrome (HGPS) is a rare premature aging syndrome caused by a dominant mutation in the LMNA gene. Previous research has shown that the ectopic expression of the catalytic subunit of telomerase (hTERT) can elongate the telomeres of the patients’ fibroblasts. Here, we established five immortalized HGP fibroblast cell lines using retroviral infection with the catalytic subunit of hTERT. Immortalization enhanced the proliferative life span by at least 50 population doublings (PDs). The number of cells with typical senescence signs was reduced by 63 + 17%. Furthermore, the growth increase and phenotype improvement occurred with a lag phase of 50–100 days and was not dependent on the degree of telomere elongation. The initial telomeric stabilization after hTERT infection and relatively low amounts of hTERT mRNA were sufficient for the phenotype improvement but the retroviral infection procedure was associated with transient cell stress. Our data have implications for therapeutic strategies in HGP and other premature aging syndromes.
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Affiliation(s)
- Haihuan Lin
- Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, 13353 Berlin, Germany
| | - Juliane Mensch
- Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, 13353 Berlin, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, Rostock University Medical Center, 18057 Rostock, Germany
| | - Maria Haschke
- Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, 13353 Berlin, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, Rostock University Medical Center, 18057 Rostock, Germany
| | - Kathrin Jäger
- Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, 13353 Berlin, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, Rostock University Medical Center, 18057 Rostock, Germany
| | - Brigitte Köttgen
- Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, 13353 Berlin, Germany
| | - Jens Dernedde
- Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, 13353 Berlin, Germany
| | - Evelyn Orsó
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Michael Walter
- Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, 13353 Berlin, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, Rostock University Medical Center, 18057 Rostock, Germany
- Correspondence:
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Chen P, Yang M, Wang Y, Guo Y, Liu Y, Fang C, Li T. Aging endometrium in young women: molecular classification of endometrial aging-based markers in women younger than 35 years with recurrent implantation failure. J Assist Reprod Genet 2022; 39:2143-2151. [PMID: 35881273 PMCID: PMC9475014 DOI: 10.1007/s10815-022-02578-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/13/2022] [Indexed: 10/16/2022] Open
Abstract
BACKGROUND To explore the differences between a population with premature endometrial aging and a population with normal endometrial status in young women with recurrent implantation failure (< 35 years). METHODS Systematic analysis of the endometrium transcriptome of 274 RIF women. The NMF algorithm was used for classification based on endometrial-specific aging markers in CellAge, and the endometrial receptivity, gene expression patterns, and clinical data were compared between the classifications. RESULTS Two hundred forty-five young RIF women could be divided into two clusters, in which the aging gene expression pattern of cluster 2 was closer to the reference cluster. Cluster 1 was characterized by high immune activity, while cluster 2 was characterized by high metabolic activity. Combined with clinical data, cluster 2 was worse than cluster 1 in window of implantation deviation rate and endometrial receptivity. CONCLUSION Premature aging of the endometrium exists in young women with RIF, and premature aging of the endometrium was associated with poor reproductive outcomes.
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Affiliation(s)
- Peigen Chen
- Reproductive Medicine Center, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Meng Yang
- Reproductive Medicine Center, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Yanfang Wang
- Reproductive Medicine Center, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Yingchun Guo
- Reproductive Medicine Center, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Yun Liu
- The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Cong Fang
- Reproductive Medicine Center, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China.
| | - Tingting Li
- Reproductive Medicine Center, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China.
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14
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Pantiya P, Thonusin C, Sumneang N, Ongnok B, Chunchai T, Kerdphoo S, Jaiwongkam T, Arunsak B, Siri-Angkul N, Sriwichaiin S, Chattipakorn N, Chattipakorn SC. High Cardiorespiratory Fitness Protects against Molecular Impairments of Metabolism, Heart, and Brain with Higher Efficacy in Obesity-Induced Premature Aging. Endocrinol Metab (Seoul) 2022; 37:630-640. [PMID: 35927067 PMCID: PMC9449107 DOI: 10.3803/enm.2022.1430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 06/08/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGRUOUND High cardiorespiratory fitness (CRF) protects against age-related diseases. However, the mechanisms mediating the protective effect of high intrinsic CRF against metabolic, cardiac, and brain impairments in non-obese versus obese conditions remain incompletely understood. We aimed to identify the mechanisms through which high intrinsic CRF protects against metabolic, cardiac, and brain impairments in non-obese versus obese untrained rats. METHODS Seven-week-old male Wistar rats were divided into two groups (n=8 per group) to receive either a normal diet or a highfat diet (HFD). At weeks 12 and 28, CRF, carbohydrate and fatty acid oxidation, cardiac function, and metabolic parameters were evaluated. At week 28, behavior tests were performed. At the end of week 28, rats were euthanized to collect heart and brain samples for molecular studies. RESULTS The obese rats exhibited higher values for aging-related parameters than the non-obese rats, indicating that they experienced obesity-induced premature aging. High baseline CRF levels were positively correlated with several favorable metabolic, cardiac, and brain parameters at follow-up. Specifically, the protective effects of high CRF against metabolic, cardiac, and brain impairments were mediated by the modulation of body weight and composition, the lipid profile, substrate oxidation, mitochondrial function, insulin signaling, autophagy, apoptosis, inflammation, oxidative stress, cardiac function, neurogenesis, blood-brain barrier, synaptic function, accumulation of Alzheimer's disease-related proteins, and cognition. Interestingly, this effect was more obvious in HFD-fed rats. CONCLUSION The protective effect of high CRF is mediated by the modulation of several mechanisms. These effects exhibit greater efficacy under conditions of obesity-induced premature aging.
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Affiliation(s)
- Patcharapong Pantiya
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Chanisa Thonusin
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Natticha Sumneang
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Benjamin Ongnok
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Titikorn Chunchai
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Sasiwan Kerdphoo
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Thidarat Jaiwongkam
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Busarin Arunsak
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Natthaphat Siri-Angkul
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Sirawit Sriwichaiin
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Siriporn C. Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
- Corresponding author: Siriporn C. Chattipakorn. Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, 110 Intawaroros Road, Si Phum, Muang, Chiang Mai, 50200, Thailand Tel: +66-53-935329, Fax: +66-53-935368, E-mail:
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15
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Lei Z, Chen L, Liu Y, Yang Y, Chen G, Liu W, Nie Y, Lei Y, Tong F, Huang L, Wu H, Yang L, Zhang X, Yang C, Zhu J, Guo J. EpCAM deficiency causes premature aging of intestinal epithelium via hyperactivating mTORC1 pathway. Clin Transl Med 2022; 12:e903. [PMID: 35678096 PMCID: PMC9178350 DOI: 10.1002/ctm2.903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/21/2022] [Accepted: 05/11/2022] [Indexed: 11/22/2022] Open
Affiliation(s)
- Zili Lei
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
| | - Lei Chen
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
| | - Yanyan Liu
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
| | - Yanhong Yang
- The First Affiliated Hospital (School of Clinical Medicine)Guangdong Pharmaceutical UniversityYue‐Xiu DistrictGuangzhouPeople's Republic of China
| | - Guibin Chen
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
| | - Wanwan Liu
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
| | - Ya Nie
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
- School of Traditional Chinese MedicineGuangdong Pharmaceutical University, Guangzhou Higher Education Mega CenterGuangzhouPeople's Republic of China
| | - Yuting Lei
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
| | - Fengxue Tong
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
| | - Li Huang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
- School of Traditional Chinese MedicineGuangdong Pharmaceutical University, Guangzhou Higher Education Mega CenterGuangzhouPeople's Republic of China
| | - Huijuan Wu
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
- School of Traditional Chinese MedicineGuangdong Pharmaceutical University, Guangzhou Higher Education Mega CenterGuangzhouPeople's Republic of China
| | - Lanxiang Yang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
- School of Traditional Chinese MedicineGuangdong Pharmaceutical University, Guangzhou Higher Education Mega CenterGuangzhouPeople's Republic of China
| | - Xueying Zhang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
- School of Traditional Chinese MedicineGuangdong Pharmaceutical University, Guangzhou Higher Education Mega CenterGuangzhouPeople's Republic of China
| | - Changyuan Yang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
- School of Traditional Chinese MedicineGuangdong Pharmaceutical University, Guangzhou Higher Education Mega CenterGuangzhouPeople's Republic of China
| | - Jiamin Zhu
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
| | - Jiao Guo
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangdong Pharmaceutical UniversityGuangzhouPeople's Republic of China
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16
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Aguado J, Gómez-Inclán C, Leeson HC, Lavin MF, Shiloh Y, Wolvetang EJ. The hallmarks of aging in Ataxia-Telangiectasia. Ageing Res Rev 2022; 79:101653. [PMID: 35644374 DOI: 10.1016/j.arr.2022.101653] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/28/2022] [Accepted: 05/24/2022] [Indexed: 01/10/2023]
Abstract
Ataxia-telangiectasia (A-T) is caused by absence of the catalytic activity of ATM, a protein kinase that plays a central role in the DNA damage response, many branches of cellular metabolism, redox and mitochondrial homeostasis, and cell cycle regulation. A-T is a complex disorder characterized mainly by progressive cerebellar degeneration, immunodeficiency, radiation sensitivity, genome instability, and predisposition to cancer. It is increasingly recognized that the premature aging component of A-T is an important driver of this disease, and A-T is therefore an attractive model to study the aging process. This review outlines the current state of knowledge pertaining to the molecular and cellular signatures of aging in A-T and proposes how these new insights can guide novel therapeutic approaches for A-T.
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Affiliation(s)
- Julio Aguado
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Queensland 4072, Australia.
| | - Cecilia Gómez-Inclán
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Queensland 4072, Australia
| | - Hannah C Leeson
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Queensland 4072, Australia
| | - Martin F Lavin
- University of Queensland Centre for Clinical Research, The University of Queensland, Herston, Brisbane, Australia
| | - Yosef Shiloh
- The David and Inez Myers Laboratory of Cancer Genetics, Department of Human Molecular Genetics and Biochemistry, Tel Aviv University School of Medicine, Tel Aviv, Israel
| | - Ernst J Wolvetang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Queensland 4072, Australia.
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Liang Y, Piao C, Beuschel CB, Toppe D, Kollipara L, Bogdanow B, Maglione M, Lützkendorf J, See JCK, Huang S, Conrad TOF, Kintscher U, Madeo F, Liu F, Sickmann A, Sigrist SJ. eIF5A hypusination, boosted by dietary spermidine, protects from premature brain aging and mitochondrial dysfunction. Cell Rep 2021; 35:108941. [PMID: 33852845 DOI: 10.1016/j.celrep.2021.108941] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 02/11/2021] [Accepted: 03/12/2021] [Indexed: 01/08/2023] Open
Abstract
Mitochondrial function declines during brain aging and is suspected to play a key role in age-induced cognitive decline and neurodegeneration. Supplementing levels of spermidine, a body-endogenous metabolite, has been shown to promote mitochondrial respiration and delay aspects of brain aging. Spermidine serves as the amino-butyl group donor for the synthesis of hypusine (Nε-[4-amino-2-hydroxybutyl]-lysine) at a specific lysine residue of the eukaryotic translation initiation factor 5A (eIF5A). Here, we show that in the Drosophila brain, hypusinated eIF5A levels decline with age but can be boosted by dietary spermidine. Several genetic regimes of attenuating eIF5A hypusination all similarly affect brain mitochondrial respiration resembling age-typical mitochondrial decay and also provoke a premature aging of locomotion and memory formation in adult Drosophilae. eIF5A hypusination, conserved through all eukaryotes as an obviously critical effector of spermidine, might thus be an important diagnostic and therapeutic avenue in aspects of brain aging provoked by mitochondrial decline.
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Affiliation(s)
- YongTian Liang
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany
| | - Chengji Piao
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany
| | - Christine B Beuschel
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany
| | - David Toppe
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany
| | - Laxmikanth Kollipara
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Dortmund 44139, Germany
| | - Boris Bogdanow
- Department of Chemical Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Marta Maglione
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany
| | - Janine Lützkendorf
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany
| | - Jason Chun Kit See
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany
| | - Sheng Huang
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany
| | - Tim O F Conrad
- Institute for Mathematics and Computer Sciences, Freie Universität Berlin, Berlin 14195, Germany; Zuse Institute Berlin, Berlin 14195, Germany
| | - Ulrich Kintscher
- German Centre for Cardiovascular Research (DZHK), partner site Berlin, Berlin 10117, Germany; Institute of Pharmacology, Center for Cardiovascular Research, Charité Universitätmedizin Berlin, Berlin 10115, Germany
| | - Frank Madeo
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria; BioTechMed Graz, Graz, Austria
| | - Fan Liu
- Department of Chemical Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Albert Sickmann
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Dortmund 44139, Germany; Department of Chemistry, College of Physical Sciences, University of Aberdeen, Aberdeen AB24 3FX, Scotland, UK; Medizinische Fakultät, Medizinische Proteom-Center (MPC), Ruhr-Universität Bochum, Bochum 44801, Germany
| | - Stephan J Sigrist
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin 14195, Germany; NeuroCure Cluster of Excellence, Charité Universitätmedizin Berlin, Berlin 10117, Germany.
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18
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Le CM, Le TH. Premature Aging Among Trauma Survivors-The Longitudinal Implications of Sleep Disruptions on Telomere Length and Cognitive Performance. J Gerontol B Psychol Sci Soc Sci 2021; 76:262-272. [PMID: 31155651 PMCID: PMC8046532 DOI: 10.1093/geronb/gbz077] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/20/2021] [Accepted: 03/26/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Sleep is necessary for brain function as well as physical and cognitive processes. Sleep disruptions, common with aging, intensify among trauma survivors. Moreover, former prisoners-of-war (ex-POWs) often experience premature aging. This study investigates the longitudinal effects of sleep disruptions for ex-POWs in relation to cognitive performance and telomere length as well as between cognition and telomeres. METHOD This study included Israeli veterans from the 1973 Yom Kippur War who participated in four assessments (1991, 2003, 2008, 2015): (a) ex-POWs (n = 99), and (b) veterans who not were captured (controls) (n = 101). Among both groups, sleep disruptions were assessed using a self-report item in all four assessments. Cognitive performance was assessed using the Montreal Cognitive Assessment (MOCA) and telomere length was assessed via total white blood cells (leukocytes) from whole blood samples using Southern blot, both were measured only among ex-POWs in 2015. We conducted descriptive statistics, repeated measures, correlations, and path analyses. RESULTS Sleep disruptions were related to lower cognitive performance but not to shorter telomeres. Moreover, cognitive performance and telomere length were found to be related when sleep disruptions were taken into consideration. CONCLUSION Interpersonal trauma was shown to be a unique experience resulting in sleep disruptions over time, leading to cognitive impairment. These findings highlight the importance of viewing trauma survivors at high-risk for sleep disruptions. Therefore, it is imperative to inquire about sleep and diagnose cognitive disorders to help identify and treat premature aging.
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Affiliation(s)
- Cuong Manh Le
- Faculty of Building Material, National University of Civil Engineering, Hanoi 100000, Vietnam
| | - Thu-Huong Le
- Faculty of Chemistry and Environment, Thuyloi University, Hanoi 100000, Vietnam
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19
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Serna E, Cespedes C, Vina J. Anti-Aging Physiological Roles of Aryl Hydrocarbon Receptor and Its Dietary Regulators. Int J Mol Sci 2020; 22:ijms22010374. [PMID: 33396477 PMCID: PMC7795126 DOI: 10.3390/ijms22010374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/18/2020] [Accepted: 12/26/2020] [Indexed: 01/13/2023] Open
Abstract
The vast majority of the literature on the aryl hydrocarbon receptor is concerned with its functions in xenobiotic detoxification. However, in the course of evolution, this receptor had to have physiological (rather than toxicological) functions. Our aim was to review the aryl hydrocarbon receptor’s role in the physiological functions involved in aging. This study was performed by searching the MEDLINE and Google Academic databases. A total of 34 articles were selected that focused specifically on the aryl hydrocarbon receptor and aging, the aryl hydrocarbon receptor and physiological functions, and the combination of both. This receptor’s main physiological functions (mediated by the modulation of gene expression) were cell regeneration, the immune reaction, intestinal homeostasis, and cell proliferation. Furthermore, it was shown that the loss of this receptor led to premature aging. This process may be caused by the dysregulation of hematopoietic stem cells, loss of glucose and lipid homeostasis, increase in inflammation, and deterioration of the brain. We conclude that the aryl hydrocarbon receptor, apart from its well-established role in xenobiotic detoxication, plays an important role in physiological functions and in the aging process. Modulation of the signaling pathway of this receptor could be a therapeutic target of interest in aging.
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Affiliation(s)
- Eva Serna
- Correspondence: ; Tel.: +34-96-386-41-00 (ext. 83171)
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20
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Nevado RM, Hamczyk MR, Gonzalo P, Andrés-Manzano MJ, Andrés V. Premature Vascular Aging with Features of Plaque Vulnerability in an Atheroprone Mouse Model of Hutchinson-Gilford Progeria Syndrome with Ldlr Deficiency. Cells 2020; 9:cells9102252. [PMID: 33049978 PMCID: PMC7601818 DOI: 10.3390/cells9102252] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/27/2020] [Accepted: 10/04/2020] [Indexed: 12/21/2022] Open
Abstract
Hutchinson–Gilford progeria syndrome (HGPS) is among the most devastating of the laminopathies, rare genetic diseases caused by mutations in genes encoding nuclear lamina proteins. HGPS patients age prematurely and die in adolescence, typically of atherosclerosis-associated complications. The mechanisms of HGPS-related atherosclerosis are not fully understood due to the scarcity of patient-derived samples and the availability of only one atheroprone mouse model of the disease. Here, we generated a new atherosusceptible model of HGPS by crossing progeroid LmnaG609G/G609G mice, which carry a disease-causing mutation in the Lmna gene, with Ldlr−/− mice, a commonly used preclinical atherosclerosis model. Ldlr−/−LmnaG609G/G609G mice aged prematurely and had reduced body weight and survival. Compared with control mice, Ldlr−/−LmnaG609G/G609G mouse aortas showed a higher atherosclerosis burden and structural abnormalities typical of HGPS patients, including vascular smooth muscle cell depletion in the media, adventitial thickening, and elastin structure alterations. Atheromas of Ldlr−/−LmnaG609G/G609G mice had features of unstable plaques, including the presence of erythrocytes and iron deposits and reduced smooth muscle cell and collagen content. Ldlr−/−LmnaG609G/G609G mice faithfully recapitulate vascular features found in patients and thus provide a new tool for studying the mechanisms of HGPS-related atherosclerosis and for testing therapies.
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MESH Headings
- Aging, Premature/metabolism
- Aging, Premature/physiopathology
- Animals
- Aorta/metabolism
- Atherosclerosis/metabolism
- Atherosclerosis/physiopathology
- Disease Models, Animal
- Female
- Lamin Type A/genetics
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/metabolism
- Mutation
- Myocytes, Smooth Muscle/metabolism
- Nuclear Lamina/metabolism
- Plaque, Atherosclerotic/metabolism
- Progeria/metabolism
- Progeria/physiopathology
- Receptors, LDL/genetics
- Receptors, LDL/metabolism
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Affiliation(s)
- Rosa M. Nevado
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain; (R.M.N.); (P.G.); (M.J.A.-M.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Magda R. Hamczyk
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain; (R.M.N.); (P.G.); (M.J.A.-M.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006 Oviedo, Spain;
| | - Pilar Gonzalo
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain; (R.M.N.); (P.G.); (M.J.A.-M.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - María Jesús Andrés-Manzano
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain; (R.M.N.); (P.G.); (M.J.A.-M.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Vicente Andrés
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain; (R.M.N.); (P.G.); (M.J.A.-M.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-91-453-1200
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21
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Schreckenberger ZJ, Wenceslau CF, Joe B, McCarthy CG. Mitophagy in Hypertension-Associated Premature Vascular Aging. Am J Hypertens 2020; 33:804-812. [PMID: 32533696 PMCID: PMC7481986 DOI: 10.1093/ajh/hpaa058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 12/18/2022] Open
Abstract
Hypertension has been described as a condition of premature vascular aging, relative to actual chronological age. In fact, many factors that contribute to the deterioration of vascular function as we age are accelerated and exacerbated in hypertension. Nonetheless, the precise mechanisms that underlie the aged phenotype of arteries from hypertensive patients and animals remain elusive. Classically, the aged phenotype is the buildup of cellular debris and dysfunctional organelles. One means by which this can occur is insufficient degradation and cellular recycling. Mitophagy is the selective catabolism of damaged mitochondria. Mitochondria are organelles that contribute importantly to the determination of cellular age via their production of reactive oxygen species (ROS; Harman's free radical theory of aging). Therefore, the accumulation of dysfunctional and ROS-producing mitochondria could contribute to the acceleration of vascular age in hypertension. This review will address and critically evaluate the current literature on mitophagy in vascular physiology and hypertension.
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Affiliation(s)
- Zachary J Schreckenberger
- Center for Hypertension & Personalized Medicine, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, USA
| | - Camilla F Wenceslau
- Center for Hypertension & Personalized Medicine, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, USA
| | - Bina Joe
- Center for Hypertension & Personalized Medicine, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, USA
| | - Cameron G McCarthy
- Center for Hypertension & Personalized Medicine, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, USA
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22
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Murase D, Kusaka-Kikushima A, Hachiya A, Fullenkamp R, Stepp A, Imai A, Ueno M, Kawabata K, Takahashi Y, Hase T, Ohuchi A, Nakamura S, Yoshimori T. Autophagy Declines with Premature Skin Aging resulting in Dynamic Alterations in Skin Pigmentation and Epidermal Differentiation. Int J Mol Sci 2020; 21:ijms21165708. [PMID: 32784909 PMCID: PMC7460956 DOI: 10.3390/ijms21165708] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 12/27/2022] Open
Abstract
Autophagy is a membrane traffic system that provides sustainable degradation of cellular components for homeostasis, and is thus considered to promote health and longevity, though its activity declines with aging. The present findings show deterioration of autophagy in association with premature skin aging. Autophagy flux was successfully determined in skin tissues, which demonstrated significantly decreased autophagy in hyperpigmented skin such as that seen in senile lentigo. Furthermore, an exacerbated decline in autophagy was confirmed in xerotic hyperpigmentation areas, accompanied by severe dehydration and a barrier defect, which showed correlations with skin physiological conditions. The enhancement of autophagy in skin ex vivo ameliorated skin integrity, including pigmentation and epidermal differentiation. The present results indicate that the restoration of autophagy can contribute to improving premature skin aging by various intrinsic and extrinsic factors via the normalization of protein homeostasis.
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Affiliation(s)
- Daiki Murase
- Biological Science Research, Kao Corporation, Haga 321-3497, Japan;
- Correspondence: ; Tel.: +81-285-68-7637
| | - Ayumi Kusaka-Kikushima
- Biological Science Research, Kao Corporation, Odawara 250-0002, Japan; (A.K.-K.); (M.U.); (K.K.); (Y.T.)
| | - Akira Hachiya
- Planning and Implementation, Kao Corporation, Haga 321-3497, Japan;
| | - Rachel Fullenkamp
- Americas Research Laboratories, Kao USA Inc., Cincinnati, OH 45214, USA; (R.F.); (A.S.); (A.I.)
| | - Anita Stepp
- Americas Research Laboratories, Kao USA Inc., Cincinnati, OH 45214, USA; (R.F.); (A.S.); (A.I.)
| | - Asuka Imai
- Americas Research Laboratories, Kao USA Inc., Cincinnati, OH 45214, USA; (R.F.); (A.S.); (A.I.)
| | - Mizuki Ueno
- Biological Science Research, Kao Corporation, Odawara 250-0002, Japan; (A.K.-K.); (M.U.); (K.K.); (Y.T.)
| | - Keigo Kawabata
- Biological Science Research, Kao Corporation, Odawara 250-0002, Japan; (A.K.-K.); (M.U.); (K.K.); (Y.T.)
| | - Yoshito Takahashi
- Biological Science Research, Kao Corporation, Odawara 250-0002, Japan; (A.K.-K.); (M.U.); (K.K.); (Y.T.)
| | - Tadashi Hase
- Core Technology Sector, Kao Corporation, Sumida 131-0044, Japan;
| | - Atsushi Ohuchi
- Biological Science Research, Kao Corporation, Haga 321-3497, Japan;
| | - Shuhei Nakamura
- Department of Genetics, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan; (S.N.); (T.Y.)
- Department of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
| | - Tamotsu Yoshimori
- Department of Genetics, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan; (S.N.); (T.Y.)
- Department of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
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23
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Ebert T, Pawelzik SC, Witasp A, Arefin S, Hobson S, Kublickiene K, Shiels PG, Bäck M, Stenvinkel P. Inflammation and Premature Ageing in Chronic Kidney Disease. Toxins (Basel) 2020; 12:E227. [PMID: 32260373 PMCID: PMC7232447 DOI: 10.3390/toxins12040227] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/20/2020] [Accepted: 03/29/2020] [Indexed: 02/06/2023] Open
Abstract
Persistent low-grade inflammation and premature ageing are hallmarks of the uremic phenotype and contribute to impaired health status, reduced quality of life, and premature mortality in chronic kidney disease (CKD). Because there is a huge global burden of disease due to CKD, treatment strategies targeting inflammation and premature ageing in CKD are of particular interest. Several distinct features of the uremic phenotype may represent potential treatment options to attenuate the risk of progression and poor outcome in CKD. The nuclear factor erythroid 2-related factor 2 (NRF2)-kelch-like erythroid cell-derived protein with CNC homology [ECH]-associated protein 1 (KEAP1) signaling pathway, the endocrine phosphate-fibroblast growth factor-23-klotho axis, increased cellular senescence, and impaired mitochondrial biogenesis are currently the most promising candidates, and different pharmaceutical compounds are already under evaluation. If studies in humans show beneficial effects, carefully phenotyped patients with CKD can benefit from them.
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Affiliation(s)
- Thomas Ebert
- Karolinska Institutet, Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, SE-141 86 Stockholm, Sweden; (A.W.); (S.A.); (S.H.); (K.K.)
| | - Sven-Christian Pawelzik
- Karolinska Institutet, Department of Medicine Solna, Cardiovascular Medicine Unit, SE-171 76 Stockholm, Sweden; (S.-C.P.); (M.B.)
- Karolinska University Hospital, Theme Heart and Vessels, Division of Valvular and Coronary Disease, SE-171 76 Stockholm, Sweden
| | - Anna Witasp
- Karolinska Institutet, Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, SE-141 86 Stockholm, Sweden; (A.W.); (S.A.); (S.H.); (K.K.)
| | - Samsul Arefin
- Karolinska Institutet, Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, SE-141 86 Stockholm, Sweden; (A.W.); (S.A.); (S.H.); (K.K.)
| | - Sam Hobson
- Karolinska Institutet, Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, SE-141 86 Stockholm, Sweden; (A.W.); (S.A.); (S.H.); (K.K.)
| | - Karolina Kublickiene
- Karolinska Institutet, Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, SE-141 86 Stockholm, Sweden; (A.W.); (S.A.); (S.H.); (K.K.)
| | - Paul G. Shiels
- University of Glasgow, Wolfson Wohl Cancer Research Centre, College of Medical, Veterinary & Life Sciences, Institute of Cancer Sciences, Glasgow G61 1QH, UK;
| | - Magnus Bäck
- Karolinska Institutet, Department of Medicine Solna, Cardiovascular Medicine Unit, SE-171 76 Stockholm, Sweden; (S.-C.P.); (M.B.)
- Karolinska University Hospital, Theme Heart and Vessels, Division of Valvular and Coronary Disease, SE-171 76 Stockholm, Sweden
| | - Peter Stenvinkel
- Karolinska Institutet, Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, SE-141 86 Stockholm, Sweden; (A.W.); (S.A.); (S.H.); (K.K.)
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24
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Chojnowski A, Ong PF, Foo MXR, Liebl D, Hor L, Stewart CL, Dreesen O. Heterochromatin loss as a determinant of progerin-induced DNA damage in Hutchinson-Gilford Progeria. Aging Cell 2020; 19:e13108. [PMID: 32087607 PMCID: PMC7059134 DOI: 10.1111/acel.13108] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 12/15/2019] [Accepted: 01/02/2020] [Indexed: 12/13/2022] Open
Abstract
Hutchinson-Gilford progeria is a premature aging syndrome caused by a truncated form of lamin A called progerin. Progerin expression results in a variety of cellular defects including heterochromatin loss, DNA damage, impaired proliferation and premature senescence. It remains unclear how these different progerin-induced phenotypes are temporally and mechanistically linked. To address these questions, we use a doxycycline-inducible system to restrict progerin expression to different stages of the cell cycle. We find that progerin expression leads to rapid and widespread loss of heterochromatin in G1-arrested cells, without causing DNA damage. In contrast, progerin triggers DNA damage exclusively during late stages of DNA replication, when heterochromatin is normally replicated, and preferentially in cells that have lost heterochromatin. Importantly, removal of progerin from G1-arrested cells restores heterochromatin levels and results in no permanent proliferative impediment. Taken together, these results delineate the chain of events that starts with progerin expression and ultimately results in premature senescence. Moreover, they provide a proof of principle that removal of progerin from quiescent cells restores heterochromatin levels and their proliferative capacity to normal levels.
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Affiliation(s)
- Alexandre Chojnowski
- Developmental and Regenerative BiologyInstitute of Medical BiologySingaporeSingapore
| | - Peh Fern Ong
- Cell Ageing, Skin Research Institute SingaporeSingaporeSingapore
| | | | - David Liebl
- A*STAR Microscopy PlatformSingaporeSingapore
| | - Louis‐Peter Hor
- Cell Ageing, Skin Research Institute SingaporeSingaporeSingapore
| | - Colin L. Stewart
- Developmental and Regenerative BiologyInstitute of Medical BiologySingaporeSingapore
| | - Oliver Dreesen
- Cell Ageing, Skin Research Institute SingaporeSingaporeSingapore
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25
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Abstract
Huntington's disease (HD) is a fatal, inherited neurodegenerative disorder caused by a mutation in the huntingtin gene (HTT). While mutant HTT is present ubiquitously throughout life, HD onset typically occurs in mid-life, suggesting that aging may play an active role in pathogenesis. Cellular aging is defined as the slow decline in stress resistance and accumulation of damage over time. While different cells and tissues can age at different rates, 9 hallmarks of aging have emerged to better define the cellular aging process. Strikingly, many of the hallmarks of aging are also hallmarks of HD pathology. Models of HD and HD patients possess markers of accelerated aging, and processes that decline during aging also decline at a more rapid rate in HD, further implicating the role of aging in HD pathogenesis. Furthermore, accelerating aging in HD mouse and patient-derived neurons unmasks HD-specific phenotypes, suggesting an active role for the aging process in the onset and progression of HD. Here, we review the overlap between the hallmarks of aging and HD and discuss how aging may contribute to pathogenesis in HD.
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Affiliation(s)
- Emily Machiela
- University of Central Florida, College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Amber L. Southwell
- University of Central Florida, College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
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26
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Fang EF, Hou Y, Lautrup S, Jensen MB, Yang B, SenGupta T, Caponio D, Khezri R, Demarest TG, Aman Y, Figueroa D, Morevati M, Lee HJ, Kato H, Kassahun H, Lee JH, Filippelli D, Okur MN, Mangerich A, Croteau DL, Maezawa Y, Lyssiotis CA, Tao J, Yokote K, Rusten TE, Mattson MP, Jasper H, Nilsen H, Bohr VA. NAD + augmentation restores mitophagy and limits accelerated aging in Werner syndrome. Nat Commun 2019; 10:5284. [PMID: 31754102 PMCID: PMC6872719 DOI: 10.1038/s41467-019-13172-8] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 10/21/2019] [Indexed: 12/26/2022] Open
Abstract
Metabolic dysfunction is a primary feature of Werner syndrome (WS), a human premature aging disease caused by mutations in the gene encoding the Werner (WRN) DNA helicase. WS patients exhibit severe metabolic phenotypes, but the underlying mechanisms are not understood, and whether the metabolic deficit can be targeted for therapeutic intervention has not been determined. Here we report impaired mitophagy and depletion of NAD+, a fundamental ubiquitous molecule, in WS patient samples and WS invertebrate models. WRN regulates transcription of a key NAD+ biosynthetic enzyme nicotinamide nucleotide adenylyltransferase 1 (NMNAT1). NAD+ repletion restores NAD+ metabolic profiles and improves mitochondrial quality through DCT-1 and ULK-1-dependent mitophagy. At the organismal level, NAD+ repletion remarkably extends lifespan and delays accelerated aging, including stem cell dysfunction, in Caenorhabditis elegans and Drosophila melanogaster models of WS. Our findings suggest that accelerated aging in WS is mediated by impaired mitochondrial function and mitophagy, and that bolstering cellular NAD+ levels counteracts WS phenotypes.
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Affiliation(s)
- Evandro F Fang
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA.
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478, Lørenskog, Norway.
| | - Yujun Hou
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Sofie Lautrup
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478, Lørenskog, Norway
| | | | - Beimeng Yang
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Tanima SenGupta
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478, Lørenskog, Norway
| | - Domenica Caponio
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478, Lørenskog, Norway
| | - Rojyar Khezri
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, N-0379, Oslo, Norway
- Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Montebello, N-0379, Oslo, Norway
| | - Tyler G Demarest
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
- Laboratory of Neurosciences, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Yahyah Aman
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478, Lørenskog, Norway
| | - David Figueroa
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Marya Morevati
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
- Danish Center for Healthy Aging, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Ho-Joon Lee
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Hisaya Kato
- Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Henok Kassahun
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478, Lørenskog, Norway
| | - Jong-Hyuk Lee
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Deborah Filippelli
- Molecular Toxicology Group, Department of Biology, University of Konstanz, 78457, Konstanz, Germany
| | - Mustafa Nazir Okur
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Aswin Mangerich
- Molecular Toxicology Group, Department of Biology, University of Konstanz, 78457, Konstanz, Germany
| | - Deborah L Croteau
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Yoshiro Maezawa
- Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Costas A Lyssiotis
- Department of Molecular and Integrative Physiology, and Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Jun Tao
- Department of Hypertension and Vascular Disease, the First Affiliated Hospital, Sun Yat-Sen University, 510080, Guangzhou, China
| | - Koutaro Yokote
- Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Tor Erik Rusten
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, N-0379, Oslo, Norway
- Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Montebello, N-0379, Oslo, Norway
| | - Mark P Mattson
- Laboratory of Neurosciences, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Heinrich Jasper
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | - Hilde Nilsen
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478, Lørenskog, Norway
| | - Vilhelm A Bohr
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA.
- Danish Center for Healthy Aging, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark.
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Yeh CH, Shen ZQ, Hsiung SY, Wu PC, Teng YC, Chou YJ, Fang SW, Chen CF, Yan YT, Kao LS, Kao CH, Tsai TF. Cisd2 is essential to delaying cardiac aging and to maintaining heart functions. PLoS Biol 2019; 17:e3000508. [PMID: 31593566 PMCID: PMC6799937 DOI: 10.1371/journal.pbio.3000508] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 10/18/2019] [Accepted: 09/24/2019] [Indexed: 11/18/2022] Open
Abstract
CDGSH iron-sulfur domain-containing protein 2 (Cisd2) is pivotal to mitochondrial integrity and intracellular Ca2+ homeostasis. In the heart of Cisd2 knockout mice, Cisd2 deficiency causes intercalated disc defects and leads to degeneration of the mitochondria and sarcomeres, thereby impairing its electromechanical functioning. Furthermore, Cisd2 deficiency disrupts Ca2+ homeostasis via dysregulation of sarco/endoplasmic reticulum Ca2+-ATPase (Serca2a) activity, resulting in an increased level of basal cytosolic Ca2+ and mitochondrial Ca2+ overload in cardiomyocytes. Most strikingly, in Cisd2 transgenic mice, a persistently high level of Cisd2 is sufficient to delay cardiac aging and attenuate age-related structural defects and functional decline. In addition, it results in a younger cardiac transcriptome pattern during old age. Our findings indicate that Cisd2 plays an essential role in cardiac aging and in the heart's electromechanical functioning. They highlight Cisd2 as a novel drug target when developing therapies to delay cardiac aging and ameliorate age-related cardiac dysfunction.
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Affiliation(s)
- Chi-Hsiao Yeh
- Department of Thoracic and Cardiovascular Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- * E-mail: (C-HY); (T-FT)
| | - Zhao-Qing Shen
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Shao-Yu Hsiung
- Program in Molecular Medicine, School of Life Sciences, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
| | - Pei-Chun Wu
- Brain Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Yuan-Chi Teng
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
- Program in Molecular Medicine, School of Life Sciences, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
| | - Yi-Ju Chou
- Program in Molecular Medicine, School of Life Sciences, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
| | - Su-Wen Fang
- Department of Thoracic and Cardiovascular Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chian-Feng Chen
- Genome Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Ting Yan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Lung-Sen Kao
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
- Brain Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Cheng-Heng Kao
- Center of General Education, Chang Gung University, Taoyuan, Taiwan
| | - Ting-Fen Tsai
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
- Program in Molecular Medicine, School of Life Sciences, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
- Aging and Health Research Center, National Yang-Ming University, Taipei, Taiwan
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Taiwan
- * E-mail: (C-HY); (T-FT)
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28
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García-Aguirre I, Alamillo-Iniesta A, Rodríguez-Pérez R, Vélez-Aguilera G, Amaro-Encarnación E, Jiménez-Gutiérrez E, Vásquez-Limeta A, Samuel Laredo-Cisneros M, Morales-Lázaro SL, Tiburcio-Félix R, Ortega A, Magaña JJ, Winder SJ, Cisneros B. Enhanced nuclear protein export in premature aging and rescue of the progeria phenotype by modulation of CRM1 activity. Aging Cell 2019; 18:e13002. [PMID: 31305018 PMCID: PMC6718587 DOI: 10.1111/acel.13002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 06/12/2019] [Accepted: 06/22/2019] [Indexed: 12/11/2022] Open
Abstract
The study of Hutchinson-Gilford progeria syndrome (HGPS) has provided important clues to decipher mechanisms underlying aging. Progerin, a mutant lamin A, disrupts nuclear envelope structure/function, with further impairment of multiple processes that culminate in senescence. Here, we demonstrate that the nuclear protein export pathway is exacerbated in HGPS, due to progerin-driven overexpression of CRM1, thereby disturbing nucleocytoplasmic partitioning of CRM1-target proteins. Enhanced nuclear export is central in HGPS, since pharmacological inhibition of CRM1 alleviates all aging hallmarks analyzed, including senescent cellular morphology, lamin B1 downregulation, loss of heterochromatin, nuclear morphology defects, and expanded nucleoli. Exogenous overexpression of CRM1 on the other hand recapitulates the HGPS cellular phenotype in normal fibroblasts. CRM1 levels/activity increases with age in fibroblasts from healthy donors, indicating that altered nuclear export is a common hallmark of pathological and physiological aging. Collectively, our findings provide novel insights into HGPS pathophysiology, identifying CRM1 as potential therapeutic target in HGPS.
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Affiliation(s)
- Ian García-Aguirre
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Alma Alamillo-Iniesta
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Ruth Rodríguez-Pérez
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Griselda Vélez-Aguilera
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Elianeth Amaro-Encarnación
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Elizabeth Jiménez-Gutiérrez
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Alejandra Vásquez-Limeta
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research-Frederick, National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Marco Samuel Laredo-Cisneros
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
- Department of Biomedical Science, University of Sheffield, Sheffield, UK
| | - Sara L Morales-Lázaro
- Department of Cognitive Neuroscience, Institute of Cellular Physiology, National Autonomous University of Mexico (UNAM), Mexico City, Mexico
| | - Reynaldo Tiburcio-Félix
- Department of Toxicology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Arturo Ortega
- Department of Toxicology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Jonathan J Magaña
- Laboratory of Genomic Medicine, Department of Genetics, National Rehabilitation Institute, "Luis Guillermo Ibarra Ibarra", Mexico City, Mexico
| | - Steve J Winder
- Department of Biomedical Science, University of Sheffield, Sheffield, UK
| | - Bulmaro Cisneros
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
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Guo ML, Buch S. Neuroinflammation & pre-mature aging in the context of chronic HIV infection and drug abuse: Role of dysregulated autophagy. Brain Res 2019; 1724:146446. [PMID: 31521638 DOI: 10.1016/j.brainres.2019.146446] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/29/2019] [Accepted: 09/10/2019] [Indexed: 12/15/2022]
Abstract
In the era of combined antiretroviral therapy (cART), HIV-1 infection has transformed from adeath sentenceto a manageable, chronic disease. Although the lifeexpectancy of HIV+ individuals is comparable to that of the uninfectedsubjects paradoxically, there is increased prevalence ofage-associatedcomorbidities such asatherosclerosis, diabetes, osteoporosis & neurological deficits in the context of HIV infection. Drug abuse is a commoncomorbidityofHIV infection andis often associated withincreased neurological complications. Chronic neuroinflammation (abnormal microglial and astrocyte activation) and neuronal synaptodendritic injury are the features of CNS pathology observed inHIV (+) individualsthat are takingcART & that abuse drugs. Neuroinflammation is thedrivingforceunderlying prematureaging associated with HIV (+) infection, cART and drugs of abuse. Autophagy is a highly conserved process critical for maintaining cellular homeostasis. Dysregulated autophagyhas been shown to be linked with abnormal immune responses & aging. Recent emerging evidence implicatesthe role ofHIV/HIV proteins, cART, & abused drugsin disrupting theautophagy process in brain cells such as microglia, astrocytes, and neurons. It can thus be envisioned that co-exposure of CNS cells to HIV proteins, cART and/or abused drugs couldhavesynergistic effects on theautophagy process, thereby leading to exaggerated microglial/astrocyte activation, ultimately, promotingthe aging process. Restoration of autophagic functioncould thusprovide an alternative therapeuticstrategy formitigating neuroinflammation & ameliorating the premature aging process. The current review aims to unravel the role of dysregulated autophagy in the context of single or co-exposure of microglia, astrocytes, and neurons to HIV/HIV proteins, drugs of abuse &/or cART and will also discuss the pathways involved in dysregulated autophagy-mediated neuroinflammation.
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Affiliation(s)
- Ming-Lei Guo
- Department of Pharmacology and Experimental Neuroscience, 985880 Nebraska Medical Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Shilpa Buch
- Department of Pharmacology and Experimental Neuroscience, 985880 Nebraska Medical Center, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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30
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Ho YH, Del Toro R, Rivera-Torres J, Rak J, Korn C, García-García A, Macías D, González-Gómez C, Del Monte A, Wittner M, Waller AK, Foster HR, López-Otín C, Johnson RS, Nerlov C, Ghevaert C, Vainchenker W, Louache F, Andrés V, Méndez-Ferrer S. Remodeling of Bone Marrow Hematopoietic Stem Cell Niches Promotes Myeloid Cell Expansion during Premature or Physiological Aging. Cell Stem Cell 2019; 25:407-418.e6. [PMID: 31303548 PMCID: PMC6739444 DOI: 10.1016/j.stem.2019.06.007] [Citation(s) in RCA: 166] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 02/21/2019] [Accepted: 06/10/2019] [Indexed: 12/12/2022]
Abstract
Hematopoietic stem cells (HSCs) residing in the bone marrow (BM) accumulate during aging but are functionally impaired. However, the role of HSC-intrinsic and -extrinsic aging mechanisms remains debated. Megakaryocytes promote quiescence of neighboring HSCs. Nonetheless, whether megakaryocyte-HSC interactions change during pathological/natural aging is unclear. Premature aging in Hutchinson-Gilford progeria syndrome recapitulates physiological aging features, but whether these arise from altered stem or niche cells is unknown. Here, we show that the BM microenvironment promotes myelopoiesis in premature/physiological aging. During physiological aging, HSC-supporting niches decrease near bone but expand further from bone. Increased BM noradrenergic innervation promotes β2-adrenergic-receptor(AR)-interleukin-6-dependent megakaryopoiesis. Reduced β3-AR-Nos1 activity correlates with decreased endosteal niches and megakaryocyte apposition to sinusoids. However, chronic treatment of progeroid mice with β3-AR agonist decreases premature myeloid and HSC expansion and restores the proximal association of HSCs to megakaryocytes. Therefore, normal/premature aging of BM niches promotes myeloid expansion and can be improved by targeting the microenvironment.
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Affiliation(s)
- Ya-Hsuan Ho
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge CB2 0PT, UK; National Health Service Blood and Transplant, Cambridge Biomedical Campus, Cambridge CB2 0PT, UK
| | - Raquel Del Toro
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain; CIBER de Enfermedades Cardiovasculares (CIBER-CV), Spain
| | - José Rivera-Torres
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain; CIBER de Enfermedades Cardiovasculares (CIBER-CV), Spain
| | - Justyna Rak
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge CB2 0PT, UK; National Health Service Blood and Transplant, Cambridge Biomedical Campus, Cambridge CB2 0PT, UK
| | - Claudia Korn
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge CB2 0PT, UK; National Health Service Blood and Transplant, Cambridge Biomedical Campus, Cambridge CB2 0PT, UK
| | - Andrés García-García
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge CB2 0PT, UK; National Health Service Blood and Transplant, Cambridge Biomedical Campus, Cambridge CB2 0PT, UK; Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
| | - David Macías
- Physiological Laboratory, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Cristina González-Gómez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain; CIBER de Enfermedades Cardiovasculares (CIBER-CV), Spain
| | - Alberto Del Monte
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain; CIBER de Enfermedades Cardiovasculares (CIBER-CV), Spain
| | - Monika Wittner
- INSERM (Institut National de la Santé et de la Recherche Médicale), Université Paris-Saclay, UMR1170, Gustave Roussy, 94805 Villejuif, France; Université Paris-Saclay and CNRS GDR 3697 MicroNiT, Villejuif, France
| | - Amie K Waller
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge CB2 0PT, UK; National Health Service Blood and Transplant, Cambridge Biomedical Campus, Cambridge CB2 0PT, UK
| | - Holly R Foster
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge CB2 0PT, UK; National Health Service Blood and Transplant, Cambridge Biomedical Campus, Cambridge CB2 0PT, UK
| | - Carlos López-Otín
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Oncología, Universidad de Oviedo, 33006 Oviedo, Spain; Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | - Randall S Johnson
- Physiological Laboratory, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Claus Nerlov
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, UK
| | - Cedric Ghevaert
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge CB2 0PT, UK; National Health Service Blood and Transplant, Cambridge Biomedical Campus, Cambridge CB2 0PT, UK
| | - William Vainchenker
- INSERM (Institut National de la Santé et de la Recherche Médicale), Université Paris-Saclay, UMR1170, Gustave Roussy, 94805 Villejuif, France
| | - Fawzia Louache
- INSERM (Institut National de la Santé et de la Recherche Médicale), Université Paris-Saclay, UMR1170, Gustave Roussy, 94805 Villejuif, France; Université Paris-Saclay and CNRS GDR 3697 MicroNiT, Villejuif, France
| | - Vicente Andrés
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain; CIBER de Enfermedades Cardiovasculares (CIBER-CV), Spain
| | - Simón Méndez-Ferrer
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge CB2 0PT, UK; National Health Service Blood and Transplant, Cambridge Biomedical Campus, Cambridge CB2 0PT, UK; Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain.
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31
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Huang RC, Lillycrop KA, Beilin LJ, Godfrey KM, Anderson D, Mori TA, Rauschert S, Craig JM, Oddy WH, Ayonrinde OT, Pennell CE, Holbrook JD, Melton PE. Epigenetic Age Acceleration in Adolescence Associates With BMI, Inflammation, and Risk Score for Middle Age Cardiovascular Disease. J Clin Endocrinol Metab 2019; 104:3012-3024. [PMID: 30785999 PMCID: PMC6555851 DOI: 10.1210/jc.2018-02076] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 02/15/2019] [Indexed: 12/13/2022]
Abstract
CONTEXT "Accelerated aging," assessed by adult DNA methylation, predicts cardiovascular disease (CVD). Adolescent accelerated aging might predict CVD earlier. We investigated whether epigenetic age acceleration (assessed age, 17 years) was associated with adiposity/CVD risk measured (ages 17, 20, and 22 years) and projected CVD by middle age. DESIGN DNA methylation measured in peripheral blood provided two estimates of epigenetic age acceleration: intrinsic (IEAA; preserved across cell types) and extrinsic (EEAA; dependent on cell admixture and methylation levels within each cell type). Adiposity was assessed by anthropometry, ultrasound, and dual-energy x-ray absorptiometry (ages 17, 20, and 22 years). CVD risk factors [lipids, homeostatic model assessment of insulin resistance (HOMA-IR), blood pressure, inflammatory markers] were assessed at age 17 years. CVD development by age 47 years was calculated by Framingham algorithms. Results are presented as regression coefficients per 5-year epigenetic age acceleration (IEAA/EEAA) for adiposity, CVD risk factors, and CVD development. RESULTS In 995 participants (49.6% female; age, 17.3 ± 0.6 years), EEAA (per 5 years) was associated with increased body mass index (BMI) of 2.4% (95% CI, 1.2% to 3.6%) and 2.4% (0.8% to 3.9%) at 17 and 22 years, respectively. EEAA was associated with increases of 23% (3% to 33%) in high-sensitivity C-reactive protein, 10% (4% to 17%) in interferon-γ-inducible protein of 10 kDa, and 4% (2% to 6%) in soluble TNF receptor 2, adjusted for BMI and HOMA-IR. EEAA (per 5 years) results in a 4% increase in hard endpoints of CVD by 47 years of age and a 3% increase, after adjustment for conventional risk factors. CONCLUSIONS Accelerated epigenetic age in adolescence was associated with inflammation, BMI measured 5 years later, and probability of middle age CVD. Irrespective of whether this is cause or effect, assessing epigenetic age might refine disease prediction.
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Affiliation(s)
- Rae-Chi Huang
- Telethon Kids Institute, University of Western Australia, Nedlands, Western Australia, Australia
- Correspondence and Reprint Requests: Rae-Chi Huang, MBBS, FRACP, PhD, Telethon Kids Institute, 15 Hospital Avenue, Nedlands, Western Australia 6009, Australia. E-mail:
| | | | - Lawrence J Beilin
- Medical School, University of Western Australia, Perth, Western Australia Australia
| | - Keith M Godfrey
- Medical School, University of Western Australia, Perth, Western Australia Australia
| | - Denise Anderson
- Telethon Kids Institute, University of Western Australia, Nedlands, Western Australia, Australia
| | - Trevor A Mori
- Medical School, University of Western Australia, Perth, Western Australia Australia
| | - Sebastian Rauschert
- Telethon Kids Institute, University of Western Australia, Nedlands, Western Australia, Australia
| | - Jeffrey M Craig
- Centre for Molecular and Medical Research, School of Medicine, Deakin University, Geelong, Victoria, Australia
- Environmental and Genetic Epidemiology Research, Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Wendy H Oddy
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Oyekoya T Ayonrinde
- Medical School, University of Western Australia, Perth, Western Australia Australia
| | - Craig E Pennell
- School of Medicine and Public Health, Faculty of Medicine and Health, University of Newcastle, Callaghan, New South Wales, Australia
| | | | - Phillip E Melton
- Curtin/UWA Centre for Genetic Origins of Health and Disease, School of Biomedical Sciences, University of Western Australia, Crawley, Western Australia, Australia
- School of Pharmacy and Biomedical Sciences, Curtin University, Perth, Western Australia, Australia
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32
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Garrido A, Cruces J, Ceprián N, Vara E, de la Fuente M. Oxidative-Inflammatory Stress in Immune Cells from Adult Mice with Premature Aging. Int J Mol Sci 2019; 20:ijms20030769. [PMID: 30759732 PMCID: PMC6387005 DOI: 10.3390/ijms20030769] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/29/2019] [Accepted: 02/08/2019] [Indexed: 11/16/2022] Open
Abstract
Oxidative and inflammatory stresses are closely related processes, which contribute to age-associated impairments that affect the regulatory systems such as the immune system and its immunosenescence. Therefore, the aim of this work was to confirm whether an oxidative/inflammatory stress occurs in immune cells from adult mice with premature aging, similar to that shown in leukocytes from chronologically old animals, and if this results in immunosenescence. Several oxidants/antioxidants and inflammatory/anti-inflammatory cytokines were analyzed in peritoneal leukocytes from adult female CD1 mice in two models of premature aging—(a) prematurely aging mice (PAM) and (b) mice with the deletion of a single allele (hemi-zygotic: HZ) of the tyrosine hydroxylase (th) gene (TH-HZ), together with cells from chronologically old animals. Several immune function parameters were also studied in peritoneal phagocytes and lymphocytes. The same oxidants and antioxidants were also analyzed in spleen and thymus leukocytes. The results showed that the immune cells of PAM and TH-HZ mice presented lower values of antioxidant defenses and higher values of oxidants/pro-inflammatory cytokines than cells from corresponding controls, and similar to those in cells from old animals. Moreover, premature immunosenescence in peritoneal leukocytes from both PAM and TH-HZ mice was also observed. In conclusion, adult PAM and TH-HZ mice showed oxidative stress in their immune cells, which would explain their immunosenescence.
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Affiliation(s)
- Antonio Garrido
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), School of Biology, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
- Institute of Investigation of Hospital 12 de Octubre (i+12), 28041 Madrid, Spain.
| | - Julia Cruces
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), School of Biology, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
- Institute of Investigation of Hospital 12 de Octubre (i+12), 28041 Madrid, Spain.
| | - Noemí Ceprián
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), School of Biology, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
- Institute of Investigation of Hospital 12 de Octubre (i+12), 28041 Madrid, Spain.
| | - Elena Vara
- Department of Biochemistry and Molecular Biology III, School of Medicine, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
| | - Mónica de la Fuente
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), School of Biology, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
- Institute of Investigation of Hospital 12 de Octubre (i+12), 28041 Madrid, Spain.
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Chen NC, Partridge AT, Tuzer F, Cohen J, Nacarelli T, Navas-Martín S, Sell C, Torres C, Martín-García J. Induction of a Senescence-Like Phenotype in Cultured Human Fetal Microglia During HIV-1 Infection. J Gerontol A Biol Sci Med Sci 2018; 73:1187-1196. [PMID: 29415134 PMCID: PMC6093403 DOI: 10.1093/gerona/gly022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/31/2018] [Indexed: 12/22/2022] Open
Abstract
HIV-1 causes premature aging in chronically infected patients. Despite effective anti-retroviral therapy, around 50% of patients suffer HIV-associated neurocognitive disorders (HAND), which likely potentiate aging-associated neurocognitive decline. Microglia support productive HIV-1 infection in the brain. Elevated markers of cellular senescence, including p53 and p21, have been detected in brain tissues from patients with HAND, but the potential for microglia senescence during HIV-1 infection has not been investigated. We hypothesized that HIV-1 can induce senescence in microglia. Primary human fetal microglia were exposed to single-round infectious HIV-1 pseudotypes or controls, and examined for markers of senescence. Post-infection, microglia had significantly elevated: senescence-associated β-galactosidase activity, p21 levels, and production of cytokines such as IL-6 and IL-8, potentially indicative of a senescence-associated secretory phenotype. We also found increased detection of p53-binding protein foci in microglia nuclei post-infection. Additionally, we examined mitochondrial reactive oxygen species (ROS) and respiration, and found significantly increased mitochondrial ROS levels and decreased ATP-linked respiration during HIV-1 infection. Supernatant transfer from infected cultures to naïve microglia resulted in elevated p21 and caveolin-1 levels, and IL-8 production. Finally, nucleoside treatment reduced senescence markers induction in microglia. Overall, HIV-1 induces a senescence-like phenotype in human microglia, which could play a role in HAND.
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Affiliation(s)
- Natalie C Chen
- Department of Microbiology and Immunology, Philadelphia, Pennsylvania
- MD/PhD Program, Philadelphia, Pennsylvania
- Molecular and Cell Biology and Genetics Graduate Program, Philadelphia, Pennsylvania
| | - Andrea T Partridge
- Department of Microbiology and Immunology, Philadelphia, Pennsylvania
- Microbiology and Immunology Graduate Program, Philadelphia, Pennsylvania
| | - Ferit Tuzer
- Department of Pathology and Laboratory Medicine, Philadelphia, Pennsylvania
| | - Justin Cohen
- Molecular and Cell Biology and Genetics Graduate Program, Philadelphia, Pennsylvania
- Department of Pathology and Laboratory Medicine, Philadelphia, Pennsylvania
| | - Timothy Nacarelli
- Molecular and Cell Biology and Genetics Graduate Program, Philadelphia, Pennsylvania
- Department of Pathology and Laboratory Medicine, Philadelphia, Pennsylvania
| | - Sonia Navas-Martín
- Department of Microbiology and Immunology, Philadelphia, Pennsylvania
- Center for Molecular Virology and Translational Neuroscience, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Christian Sell
- Department of Pathology and Laboratory Medicine, Philadelphia, Pennsylvania
| | - Claudio Torres
- Department of Pathology and Laboratory Medicine, Philadelphia, Pennsylvania
| | - Julio Martín-García
- Department of Microbiology and Immunology, Philadelphia, Pennsylvania
- Center for Molecular Virology and Translational Neuroscience, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, Pennsylvania
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Hause F, Schlote D, Simm A, Hoffmann K, Santos AN. Accumulation of glycated proteins suggesting premature ageing in lamin B receptor deficient mice. Biogerontology 2018; 19:95-100. [PMID: 29081010 DOI: 10.1007/s10522-017-9733-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 10/19/2017] [Indexed: 01/01/2023]
Abstract
Accumulation of advanced glycation end products (AGEs) is accompanied by increased free radical activity which contributes to ageing and the development or worsening of degenerative diseases. Apart from other physiological factors, AGEs are also an important biomarker for premature ageing. Here we report protein modifications (glycation) in a mouse model of lamin B receptor deficient ic J /ic J mice displaying skin defects similar to those of classical progeria. Therefore, we analysed AGE-modifications in protein extracts from various tissues of ic J /ic J mice. Our results demonstrated that pentosidine as well as argpyrimidine were increased in ic J /ic J mice indicating a modification specific increase in biomarkers of ageing, especially derived from glycolysis dependent methylglyoxal. Furthermore, the expression of AGE-preventing enzymes (Glo1, Fn3k) differed between ic J /ic J and control mice. The results indicate that not only lamin A but also the lamin B receptor may be involved in ageing processes.
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Affiliation(s)
- Frank Hause
- Institute for Human Genetics, Martin Luther University of Halle-Wittenberg, 06112, Halle, Germany
| | - Dietmar Schlote
- Institute for Human Genetics, Martin Luther University of Halle-Wittenberg, 06112, Halle, Germany.
| | - Andreas Simm
- Clinic for Cardiac und Thoracic Surgery, Martin Luther University of Halle-Wittenberg, 06097, Halle, Germany
| | - Katrin Hoffmann
- Institute for Human Genetics, Martin Luther University of Halle-Wittenberg, 06112, Halle, Germany
| | - Alexander Navarrete Santos
- Clinic for Cardiac und Thoracic Surgery, Martin Luther University of Halle-Wittenberg, 06097, Halle, Germany
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Abstract
PURPOSE OF REVIEW The aim of this paper is to review the recent literature on traumatic stress-related accelerated aging, including a focus on cellular mechanisms and biomarkers of cellular aging and on the clinical manifestations of accelerated biological aging. RECENT FINDINGS Multiple lines of research converge to suggest that PTSD is associated with accelerated aging in the epigenome, and the immune and inflammation systems, and this may be reflected in premature onset of cardiometabolic and cardiovascular disease. The current state of research paves the way for future work focused on identifying the peripheral and central biological mechanisms linking traumatic stress to accelerated biological aging and medical morbidity, with an emphasis on processes involved in inflammation, immune functioning, oxidative stress, autonomic arousal, and stress response. Ultimately, such work could help reduce the pace of biological aging and improve health and wellness.
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Affiliation(s)
- Erika J Wolf
- National Center for PTSD, VA Boston Healthcare System, (116B-2), 150 South Huntington Ave, Boston, MA, 02130, USA.
- Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA.
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Abstract
Skin damage from exposure to sunlight induces aging-like changes in appearance and is attributed to the ultraviolet (UV) component of light. Photosensitized production of reactive oxygen species (ROS) by UVA light is widely accepted to contribute to skin damage and carcinogenesis, but visible light is thought not to do so. Using mice expressing redox-sensitive GFP to detect ROS, blue light could produce oxidative stress in live skin. Blue light induced oxidative stress preferentially in mitochondria, but green, red, far red or infrared light did not. Blue light-induced oxidative stress was also detected in cultured human keratinocytes, but the per photon efficacy was only 25% of UVA in human keratinocyte mitochondria, compared to 68% of UVA in mouse skin. Skin autofluorescence was reduced by blue light, suggesting flavins are the photosensitizer. Exposing human skin to the blue light contained in sunlight depressed flavin autofluorescence, demonstrating that the visible component of sunlight has a physiologically significant effect on human skin. The ROS produced by blue light is probably superoxide, but not singlet oxygen. These results suggest that blue light contributes to skin aging similar to UVA.
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Affiliation(s)
- Yuya Nakashima
- Department of Biochemistry and Cell Biology, Institute of Development and Aging Sciences, Graduate School of Medicine, Nippon Medical School, 1-396 Kosugi, Nakahara-ku, Kawasaki, Kanagawa 211-8533, Japan
| | - Shigeo Ohta
- Department of Biochemistry and Cell Biology, Institute of Development and Aging Sciences, Graduate School of Medicine, Nippon Medical School, 1-396 Kosugi, Nakahara-ku, Kawasaki, Kanagawa 211-8533, Japan
| | - Alexander M Wolf
- Department of Biochemistry and Cell Biology, Institute of Development and Aging Sciences, Graduate School of Medicine, Nippon Medical School, 1-396 Kosugi, Nakahara-ku, Kawasaki, Kanagawa 211-8533, Japan.
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Petrini S, Borghi R, D'Oria V, Restaldi F, Moreno S, Novelli A, Bertini E, Compagnucci C. Aged induced pluripotent stem cell (iPSCs) as a new cellular model for studying premature aging. Aging (Albany NY) 2017; 9:1453-1469. [PMID: 28562315 PMCID: PMC5472744 DOI: 10.18632/aging.101248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 05/27/2017] [Indexed: 04/16/2023]
Abstract
Nuclear integrity and mechanical stability of the nuclear envelope (NE) are conferred by the nuclear lamina, a meshwork of intermediate filaments composed of A- and B-type lamins, supporting the inner nuclear membrane and playing a pivotal role in chromatin organization and epigenetic regulation. During cell senescence, nuclear alterations also involving NE architecture are widely described. In the present study, we utilized induced pluripotent stem cells (iPSCs) upon prolonged in vitro culture as a model to study aging and investigated the organization and expression pattern of NE major constituents. Confocal and four-dimensional imaging combined with molecular analyses, showed that aged iPSCs are characterized by nuclear dysmorphisms, nucleoskeletal components (lamin A/C-prelamin isoforms, lamin B1, emerin, and nesprin-2) imbalance, leading to impaired nucleo-cytoplasmic MKL1 shuttling, actin polymerization defects, mitochondrial dysfunctions, SIRT7 downregulation and NF-kBp65 hyperactivation. The observed age-related NE features of iPSCs closely resemble those reported for premature aging syndromes (e.g., Hutchinson-Gilford progeria syndrome) and for somatic cell senescence. These findings validate the use of aged iPSCs as a suitable cellular model to study senescence and for investigating therapeutic strategies aimed to treat premature aging.
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Affiliation(s)
- Stefania Petrini
- Confocal Microscopy Core Facility, Research Laboratories, Bambino Gesu’ Children's Research Hospital, IRCCS, Rome 00146, Italy
| | - Rossella Borghi
- Department of Neuroscience, Unit of Neuromuscular and Neurodegenerative Diseases, Laboratory of Molecular Medicine, Bambino Gesu’ Children's Research Hospital, IRCCS, Rome 00146, Italy
- Department of Science-LIME, University “Roma Tre”, Rome 00146, Italy
| | - Valentina D'Oria
- Confocal Microscopy Core Facility, Research Laboratories, Bambino Gesu’ Children's Research Hospital, IRCCS, Rome 00146, Italy
| | - Fabrizia Restaldi
- Medical Genetic Unit and Laboratory of Medical Genetics, Bambino Gesu’ Children's Research Hospital, IRCCS, Rome, Italy
| | - Sandra Moreno
- Department of Science-LIME, University “Roma Tre”, Rome 00146, Italy
| | - Antonio Novelli
- Medical Genetic Unit and Laboratory of Medical Genetics, Bambino Gesu’ Children's Research Hospital, IRCCS, Rome, Italy
| | - Enrico Bertini
- Department of Neuroscience, Unit of Neuromuscular and Neurodegenerative Diseases, Laboratory of Molecular Medicine, Bambino Gesu’ Children's Research Hospital, IRCCS, Rome 00146, Italy
| | - Claudia Compagnucci
- Department of Neuroscience, Unit of Neuromuscular and Neurodegenerative Diseases, Laboratory of Molecular Medicine, Bambino Gesu’ Children's Research Hospital, IRCCS, Rome 00146, Italy
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Weyand CM, Zeisbrich M, Goronzy JJ. Metabolic signatures of T-cells and macrophages in rheumatoid arthritis. Curr Opin Immunol 2017; 46:112-120. [PMID: 28538163 DOI: 10.1016/j.coi.2017.04.010] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 04/10/2017] [Accepted: 04/11/2017] [Indexed: 12/17/2022]
Abstract
In most autoimmune diseases, a decade-long defect in self-tolerance eventually leads to clinically relevant, tissue-destructive inflammatory disease. The pathogenic potential of chronic persistent immune responses during the pre-clinical and clinical phase is ultimately linked to the bioenergetic fitness of innate and adaptive immune cells. Chronic immune cell stimulation, high cellular turn-over, structural damage to the host tissue and maladaptive wound healing, all require a reliable supply of nutrients, oxygen, and biosynthetic precursors. Here, we use the model system of rheumatoid arthritis (RA) to discuss immunometabolism from the vantage point of T-cells and macrophages that encounter fundamentally different metabolic stress scenarios in the RA host. We outline the general principle that both insufficient nutrient supply, as well as nutrient excess generate cellular stress responses and guide immune function. ATPlow, NADPHhigh, ROSlow T-cells hyperproliferate and are forced into premature senescence. ATPhigh, ROShigh macrophages dimerize the glycolytic enzyme pyruvate kinase to amplify STAT3-dependent inflammatory effector functions. A corollary of this model is that simple nutraceutical interventions will be insufficient to re-educate the immune system in RA. Instead, interference with cell-type-exclusive and differentiation-stage-dependent metabolic setpoints will be needed to reprogram arthritogenic pathways.
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Affiliation(s)
- Cornelia M Weyand
- Division of Immunology and Rheumatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA , United States.
| | - Markus Zeisbrich
- Division of Immunology and Rheumatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA , United States
| | - Jörg J Goronzy
- Division of Immunology and Rheumatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA , United States
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Korenevsky A, Milyutina Y, Kozina L, Kerkeshko G, Arutjunyan A. Role of Reactive Oxygen Species in Premature Ageing of the Female Reproductive Function. Curr Aging Sci 2017; 10:26-31. [PMID: 27719627 DOI: 10.2174/1874609809666161006111645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 03/30/2016] [Accepted: 06/18/2016] [Indexed: 06/06/2023]
Abstract
Industrial xenobitics, as well as endogenous damaging factors, such as L-homocysteine, are a well-known source of reactive oxygen species that disrupt biological processes. Among many others, luteinizing hormone releasing hormone synthesis and secretion mediated by a variety of neurotransmitters, which are under control of the hypothalamus and pineal gland, may be put in peril by reactive oxygen species. Their formation can be one of the reasons for the reproductive function shutdown in ageing as the generic response to the damaging factors independent of their nature. We review recent findings demonstrating the role of reactive oxygen species in disrupting the circadian signal originated in the main pacemaker of the organism, the suprachiasmatic nuclei of the hypothalamus, on its way to the hypothalamic areas responsible for the luteinizing hormone preovulatory surge.
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Affiliation(s)
| | | | | | | | - Alexander Arutjunyan
- Laboratory of Biochemistry, D.O. Ott Institute of Obstetrics, Gynecology, and Reproductology; 3, Mendeleyev Line, St. Petersburg, 199034, Russian Federation
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40
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Scheibye-Knudsen M. Neurodegeneration in accelerated aging. Dan Med J 2016; 63:B5308. [PMID: 27808039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The growing proportion of elderly people represents an increasing economic burden, not least because of age-associated diseases that pose a significant cost to the health service. Finding possible interventions to age-associated disorders therefore have wide ranging implications. A number of genetically defined accelerated aging diseases have been characterized that can aid in our understanding of aging. Interestingly, all these diseases are associated with defects in the maintenance of our genome. A subset of these disorders, Cockayne syndrome, Xeroderma pigmentosum group A and ataxia-telangiectasia, show neurological involvement reminiscent of what is seen in primary human mitochondrial diseases. Mitochondria are the power plants of the cells converting energy stored in oxygen, sugar, fat, and protein into ATP, the energetic currency of our body. Emerging evidence has linked this organelle to aging and finding mitochondrial dysfunction in accelerated aging disorders thereby strengthens the mitochondrial theory of aging. This theory states that an accumulation of damage to the mitochondria may underlie the process of aging. Indeed, it appears that some accelerated aging disorders that show neurodegeneration also have mitochondrial dysfunction. The mitochondrial alterations may be secondary to defects in nuclear DNA repair. Indeed, nuclear DNA damage may lead to increased energy consumption, alterations in mitochondrial ATP production and defects in mitochondrial recycling, a term called mitophagy. These changes may be caused by activation of poly-ADP-ribose-polymerase 1 (PARP1), an enzyme that responds to DNA damage. Upon activation PARP1 utilizes key metabolites that attenuate pathways that are normally protective for the cell. Notably, pharmacological inhibition of PARP1 or reconstitution of the metabolites rescues the changes caused by PARP1 hyperactivation and in many cases reverse the phenotypes associated with accelerated aging. This implies that modulation of PARP1 or the downstream metabolites may be a therapeutic strategy for treating accelerated aging disorders and potentially age-associated neurological decline seen in the normal population.
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41
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Hemmeryckx B, Hohensinner P, Swinnen M, Heggermont W, Wojta J, Lijnen HR. Antioxidant Treatment Improves Cardiac Dysfunction in a Murine Model of Premature Aging. J Cardiovasc Pharmacol 2016; 68:374-382. [PMID: 27824722 DOI: 10.1097/fjc.0000000000000423] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Bmal1-(brain and muscle ARNT-like protein-1) deficient (Bmal1) mice prematurely age because of an increased reactive oxygen species (ROS) production. These mice also show a decline in cardiac function with age. We investigated whether an antioxidant treatment can ameliorate the declining cardiac function in prematurely aged Bmal1 mice. Male Bmal1 and wild-type (Bmal1) mice were exposed for 15 weeks to a high fat and high cholesterol diet with or without the antioxidant 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPOL; 5 mmol/L; in drinking water during the last 10 weeks). Echocardiographic analysis revealed that TEMPOL treatment of Bmal1 mice normalized cardiac function, as evidenced by a decrease in left ventricular diastolic and systolic internal diameters, and by an increase in fractional shortening and ejection fraction. The antioxidant did not affect cardiac function in Bmal1 mice. Although TEMPOL did not influence cardiac ROS levels in Bmal1 mice, it significantly protected Bmal1 cardiac telomeres from oxidation, as evidenced by a reduction in the telomere damage score (0.11 ± 0.012% vs. 0.16 ± 0.015%; P = 0.028). Thus, antioxidant treatment normalized cardiac function of Bmal1 mice, probably in part by scavenging ROS.
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Affiliation(s)
- Bianca Hemmeryckx
- *Center for Molecular and Vascular Biology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; †Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria; ‡Cardiology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; §Department of Internal Medicine, Service of Cardiology, University Hospitals Leuven, Leuven, Belgium
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Abstract
Hutchinson-Gilford progeria syndrome (HGPS) is an extremely rare premature aging disease presenting many features resembling the normal aging process. HGPS patients die before the age of 20 years due to cardiovascular problems and heart failure. HGPS is linked to mutations in the LMNA gene encoding the intermediate filament protein lamin A. Lamin A is a major component of the nuclear lamina, a scaffold structure at the nuclear envelope that defines mechanochemical properties of the nucleus and is involved in chromatin organization and epigenetic regulation. Lamin A is also present in the nuclear interior where it fulfills lamina-independent functions in cell signaling and gene regulation. The most common LMNA mutation linked to HGPS leads to mis-splicing of the LMNA mRNA and produces a mutant lamin A protein called progerin that tightly associates with the inner nuclear membrane and affects the dynamic properties of lamins. Progerin expression impairs many important cellular processes providing insight into potential disease mechanisms. These include changes in mechanosignaling, altered chromatin organization and impaired genome stability, and changes in signaling pathways, leading to impaired regulation of adult stem cells, defective extracellular matrix production and premature cell senescence. In this review, we discuss these pathways and their potential contribution to the disease pathologies as well as therapeutic approaches used in preclinical and clinical tests.
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Affiliation(s)
- Sandra Vidak
- Max F. Perutz Laboratories (MFPL), Department of Medical Biochemistry, Vienna Biocenter (VBC), Medical University Vienna, Dr. Bohr-Gasse 9/3, 1030, Vienna, Austria
| | - Roland Foisner
- Max F. Perutz Laboratories (MFPL), Department of Medical Biochemistry, Vienna Biocenter (VBC), Medical University Vienna, Dr. Bohr-Gasse 9/3, 1030, Vienna, Austria.
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43
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Forman K, Vara E, García C, Kireev R, Cuesta S, Acuña-Castroviejo D, Tresguerres JAF. Influence of aging and growth hormone on different members of the NFkB family and IkB expression in the heart from a murine model of senescence-accelerated aging. Exp Gerontol 2016; 73:114-20. [PMID: 26581911 DOI: 10.1016/j.exger.2015.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/18/2015] [Accepted: 11/10/2015] [Indexed: 12/12/2022]
Abstract
Inflammation is related to several pathological processes. The aim of this study was to investigate the protein expression of the different subunits of the nuclear factor Kappa b (NFkBp65, p50, p105, p52, p100) and the protein expressions of IkB beta and alpha in the hearts from a murine model of accelerated aging (SAM model) by Western blot. In addition, the translocation of some isoforms of NFkB from cytosol to nuclei (NFkBp65, p50, p52) and ATP level content was studied. In addition we investigated the effect of the chronic administration of growth hormone (GH) on these age-related parameters. SAMP8 and SAMR1 mice of 2 and 10 months of age were used (n = 30). Animals were divided into five experimental groups: 2 old untreated (SAMP8/SAMR1), 2 young control (SAMP8/SAMR1) and one GH treated-old groups (SAMP8). Age-related changes were found in the studied parameters. We were able to see decreases of ATP level contents and the translocation of the nuclear factor kappa B p50, p52 and p65 from cytosol to nuclei in old SAMP8 mice together with a decrease of IKB proteins. However p100 and p105 did not show differences with aging. No significant changes were recorded in SAMR1 animals. GH treatment showed beneficial effects in old SAMP8 mice inducing an increase in ATP levels and inhibiting the translocation of some NFkB subunits such as p52. Our results supported the relation of NFkB activation with enhanced apoptosis and pro-inflammatory status in old SAMP8 mice and suggested a selective beneficial effect of the GH treatment, which was able to partially reduce the incidence of some deleterious changes in the heart of those mice.
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Affiliation(s)
- K Forman
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepción, Chile; Department of Physiology, Medical School, University Complutense of Madrid, Spain
| | - E Vara
- Department of Biochemistry and Molecular Biology, Medical School, University Complutense of Madrid, Spain
| | - C García
- Department of Biochemistry and Molecular Biology, Medical School, University Complutense of Madrid, Spain
| | - R Kireev
- Department of Physiology, Medical School, University Complutense of Madrid, Spain; Instituto de Investigación Biomédica de Vigo (IBIV), Xerencia de Xestión Integrada de Vigo, SERGAS, Spain
| | - S Cuesta
- Department of Physiology, Medical School, University Complutense of Madrid, Spain
| | - D Acuña-Castroviejo
- Institute of Biotechnology, Center of Biomedical Investigation, Health Sciences Technology Park, University of Granada, Spain
| | - J A F Tresguerres
- Department of Physiology, Medical School, University Complutense of Madrid, Spain
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Fernandez P, Scaffidi P, Markert E, Lee JH, Rane S, Misteli T. Transformation resistance in a premature aging disorder identifies a tumor-protective function of BRD4. Cell Rep 2014; 9:248-260. [PMID: 25284786 PMCID: PMC4194066 DOI: 10.1016/j.celrep.2014.08.069] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/09/2014] [Accepted: 08/27/2014] [Indexed: 12/12/2022] Open
Abstract
Advanced age and DNA damage accumulation are prominent risk factors for cancer. The premature aging disorder Hutchinson-Gilford progeria syndrome (HGPS) provides a unique opportunity for studying the interplay between DNA damage and aging-associated tumor mechanisms, given that HGPS patients do not develop tumors despite elevated levels of DNA damage. Here, we have used HGPS patient cells to identify a protective mechanism to oncogenesis. We find that HGPS cells are resistant to neoplastic transformation. Resistance is mediated by the bromodomain protein BRD4, which exhibits altered genome-wide binding patterns in transformation-resistant cells, leading to inhibition of oncogenic dedifferentiation. BRD4 also inhibits, albeit to a lower extent, the tumorigenic potential of transformed cells from healthy individuals. BRD4-mediated tumor protection is clinically relevant given that a BRD4 gene signature predicts positive clinical outcome in breast and lung cancer. Our results demonstrate a protective function for BRD4 and suggest tissue-specific roles for BRD4 in tumorigenesis.
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Affiliation(s)
| | - Paola Scaffidi
- National Cancer Institute, NIH, Bethesda, MD 20892, USA; Cancer Epigenetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, London WC2A 3PX, UK; UCL Cancer Institute, University College London, London WC1E 6DD, UK
| | - Elke Markert
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA; Department of Medicine, University of Medicine and Dentistry of New Jersey, Robert-Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Ji-Hyeon Lee
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA
| | - Sushil Rane
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA
| | - Tom Misteli
- National Cancer Institute, NIH, Bethesda, MD 20892, USA.
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Affiliation(s)
- Monica M Olcina
- The Gray Institute for Radiation Oncology and Biology; Department of Oncology; University of Oxford; Oxford, UK
| | - Ester M Hammond
- The Gray Institute for Radiation Oncology and Biology; Department of Oncology; University of Oxford; Oxford, UK
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46
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Arutiunian AV, Korenevskiĭ AV. [Age-associated reproductive cycle hypothalamic regulation impairment and its correction]. Adv Gerontol 2014; 27:275-283. [PMID: 25306659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This review covers present-day ideas of the female organism reproductive system neuroendocrine regulation in aging. The literature data on the key role of the hypothalamus in formation, organization and age-related decline of the reproductive function in both mammals and humans are considered in detail. Special focus is on catecholamines, peptides and other biologically active compounds acting in these processes. The authors discuss data showing interaction between the suprachiasmatic nuclei of the hypothalamus and the pineal gland synchronizing circadian and diurnal rhythms of gonadotropine-releasing hormone being normally synthesised and secreted during the reproductive period, but failing in aging or under the influence of neurotoxic compounds. Molecular mechanisms of ovarian cycle hypothalamic regulation impairment and possible ways of its correction by means of melatonin and peptide preparations from the pineal gland are described. The data presented may be of utility to prevent premature aging of reproductive function.
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47
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Vinogradova IA, Iliukha VA, Khizhkin EA, Uzenbaeva LB, Il'ina TN, Bukalev AV, Goranskiĭ AI, Matveeva IP, Iunash VD, Lotosh TA. [Light pollution, desynchronosis and aging: the state of problem and solutions]. Adv Gerontol 2014; 27:265-268. [PMID: 25306657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The effect of different light conditions (constant illumination, light deprivation, the standard regime of lighting and natural for Northwest Russia lighting in different seasons of the annual cycle) on indicators of biological age and homeostasis, the development of age-related pathology, oncogenesis and longevity of rats was investigated. Exposure to constant light on the studied parameters was evaluated at different ages--antenatal, early and late postnatal period. The data about influences of substances and hormones of pineal gland on biomarkers of aging, homeostasis, spontaneous oncogenesis and longevity in experimental animals was obtained. It has been established that the light pollution and disturbance of photoperiod lead to desynchronosys and as a result to premature aging of the organism and age associated diseases. Ways of preventing accelerated aging were outlined.
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Rajesh K, Papadakis AI, Kazimierczak U, Peidis P, Wang S, Ferbeyre G, Kaufman RJ, Koromilas AE. eIF2α phosphorylation bypasses premature senescence caused by oxidative stress and pro-oxidant antitumor therapies. Aging (Albany NY) 2013; 5:884-901. [PMID: 24334569 PMCID: PMC3883705 DOI: 10.18632/aging.100620] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
Eukaryotic cells respond to various forms of stress by blocking mRNA translation initiation via the phosphorylation of the alpha (α) subunit of eIF2 at serine 51 (S51) (eIFαP). An important role of eIF2αP is the regulation of redox homeostasis and adaptation of cells to oxidative stress. Herein, we demonstrate that eIF2αP guards cells from intracellular reactive oxygen species (ROS) via the inhibition of senescence. Specifically, genetic inactivation of either eIF2αP or eIF2α kinase PERK in primary mouse or human fibroblasts leads to proliferative defects associated with increased DNA damage, G2/M accumulation and induction of premature senescence. Impaired proliferation of either PERK or eIF2αP-deficient primary cells is caused by increased ROS and restored by anti-oxidant treatment. Contrary to primary cells, impaired eIF2αP in immortalized mouse fibroblasts or human tumor cells provides tolerance to elevated intracellular ROS levels. However, eIF2αP-deficient human tumor cells are highly susceptible to extrinsic ROS generated by the pro-oxidant drug doxorubicin by undergoing premature senescence. Our work demonstrates that eIF2αP determines cell destiny through its capacity to control senescence in response to oxidative stress. Also, inhibition of eIF2αP may be a suitable means to increase the anti-tumor effects of pro-oxidant drugs through the induction of senescence.
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Affiliation(s)
- Kamindla Rajesh
- Lady Davis Institute for Medical Research, McGill University, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec H3T 1E2, Canada
| | - Andreas I. Papadakis
- Lady Davis Institute for Medical Research, McGill University, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec H3T 1E2, Canada
| | - Urszula Kazimierczak
- Lady Davis Institute for Medical Research, McGill University, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec H3T 1E2, Canada
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poland
| | - Philippos Peidis
- Lady Davis Institute for Medical Research, McGill University, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec H3T 1E2, Canada
| | - Shuo Wang
- Lady Davis Institute for Medical Research, McGill University, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec H3T 1E2, Canada
| | - Gerardo Ferbeyre
- Département de Biochimie, Université de Montréal; Montréal, Québec H3C 3J7, Canada
| | - Randal J. Kaufman
- Center for Neuroscience, Aging and Stem Cell Research, Sanford Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | - Antonis E. Koromilas
- Lady Davis Institute for Medical Research, McGill University, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec H3T 1E2, Canada
- Department of Oncology, Faculty of Medicine, McGill University, Montreal, Quebec H2W 1S6, Canada
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Cheng X, Ku CH, Siow RCM. Regulation of the Nrf2 antioxidant pathway by microRNAs: New players in micromanaging redox homeostasis. Free Radic Biol Med 2013; 64:4-11. [PMID: 23880293 DOI: 10.1016/j.freeradbiomed.2013.07.025] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 07/16/2013] [Accepted: 07/16/2013] [Indexed: 01/27/2023]
Abstract
MicroRNAs are now thought to play a central role in the regulation of many diverse aspects of cell biology; however, it remains to be fully elucidated how microRNAs can orchestrate cellular redox homeostasis, which plays a central role in a multitude of physiological and pathophysiological processes. The redox-sensitive transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) serves as a "master regulator" of cell survival through the coordinated induction of phase II and antioxidant defense enzymes to counteract oxidative stress and modulate redox signaling events. MicroRNAs are able to "fine-tune" the regulation of processes including those directly interacting with the Nrf2 pathway and the generation of reactive oxygen species (ROS). This review highlights that cellular redox homeostasis can be regulated by microRNAs through their modulation of Nrf2-driven antioxidant gene expression as well as key enzymes that generate ROS, which in turn can alter the biogenesis and processing of microRNAs. Therefore redox sensitive microRNAs or "redoximiRs" add an important regulatory mechanism for redox signaling beyond the well-characterized actions of Nrf2. The potential exists for microRNA-based therapies where diminished antioxidant defenses and dysregulated redox signaling can lead to cardiovascular diseases, cancers, neurodegeneration, and accelerated aging.
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Affiliation(s)
- Xinghua Cheng
- Cardiovascular Division, British Heart Foundation Centre for Research Excellence, School of Medicine, King's College London, London, UK
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Portal-Núñez S, Manassra R, Lozano D, Acitores A, Mulero F, Villanueva-Peñacarrillo ML, De la Fuente M, Esbrit P. Characterization of skeletal alterations in a model of prematurely aging mice. Age (Dordr) 2013; 35:383-393. [PMID: 22234865 PMCID: PMC3592965 DOI: 10.1007/s11357-011-9372-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Accepted: 12/15/2011] [Indexed: 05/31/2023]
Abstract
An age-related bone loss occurs, apparently associated with the concomitant increase in an oxidative stress situation. However, the underlying mechanisms of age-related osteopenia are ill defined since these studies are time consuming and require the use of many animals (mainly rodents). Here, we aimed to characterize for the first time the bone status of prematurely aging mice (PAM), which exhibit an increased oxidative stress. Tibiae from adult (6 months) PAM show an increase in bone mineral density (BMD) and bone mineral content (assessed by bone densitometry) versus those in their normal counterparts (non-prematurely aging mice, NPAM) and similarly decreased in both kinds of mouse with age. However, at this bone site, trabecular BMD (determined by μ-computerized tomography) was similar in both adult PAM and old (18 months) NPAM. Femurs from these groups of mice present an increase in oxidative stress, inflammation, osteoclastogenic, and adipogenic markers, but a decrease in the gene expression of osteoblastic differentiation markers and of the Wnt/β-catenin pathway. Our findings show that adult PAM recapitulate various age-related bone features, and thus are a suitable model for premature bone senescence studies.
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Affiliation(s)
- Sergio Portal-Núñez
- Bone and Mineral Metabolism Laboratory, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Avda. Reyes Católicos, 2, 28040, Madrid, Spain.
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