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Annibalini G, Di Patria L, Valli G, Bocconcelli M, Saltarelli R, Ferri L, Barberi L, Fanelli F, Morrone A, Barone R, Guerrini R, Musarò A, Stocchi V, Barbieri E. Impaired myoblast differentiation and muscle IGF-1 receptor signaling pathway activation after N-glycosylation inhibition. FASEB J 2024; 38:e23797. [PMID: 38963344 DOI: 10.1096/fj.202400213rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 06/08/2024] [Accepted: 06/24/2024] [Indexed: 07/05/2024]
Abstract
The role of N-glycosylation in the myogenic process remains poorly understood. Here, we evaluated the impact of N-glycosylation inhibition by Tunicamycin (TUN) or by phosphomannomutase 2 (PMM2) gene knockdown, which encodes an enzyme essential for catalyzing an early step of the N-glycosylation pathway, on C2C12 myoblast differentiation. The effect of chronic treatment with TUN on tibialis anterior (TA) and extensor digitorum longus (EDL) muscles of WT and MLC/mIgf-1 transgenic mice, which overexpress muscle Igf-1Ea mRNA isoform, was also investigated. TUN-treated and PMM2 knockdown C2C12 cells showed reduced ConA, PHA-L, and AAL lectin binding and increased ER-stress-related gene expression (Chop and Hspa5 mRNAs and s/uXbp1 ratio) compared to controls. Myogenic markers (MyoD, myogenin, and Mrf4 mRNAs and MF20 protein) and myotube formation were reduced in both TUN-treated and PMM2 knockdown C2C12 cells. Body and TA weight of WT and MLC/mIgf-1 mice were not modified by TUN treatment, while lectin binding slightly decreased in the TA muscle of WT (ConA and AAL) and MLC/mIgf-1 (ConA) mice. The ER-stress-related gene expression did not change in the TA muscle of WT and MLC/mIgf-1 mice after TUN treatment. TUN treatment decreased myogenin mRNA and increased atrogen-1 mRNA, particularly in the TA muscle of WT mice. Finally, the IGF-1 production and IGF1R signaling pathways activation were reduced due to N-glycosylation inhibition in TA and EDL muscles. Decreased IGF1R expression was found in TUN-treated C2C12 myoblasts which was associated with lower IGF-1-induced IGF1R, AKT, and ERK1/2 phosphorylation compared to CTR cells. Chronic TUN-challenge models can help to elucidate the molecular mechanisms through which diseases associated with aberrant N-glycosylation, such as Congenital Disorders of Glycosylation (CDG), affect muscle and other tissue functions.
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Affiliation(s)
- Giosuè Annibalini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Laura Di Patria
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Giacomo Valli
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Matteo Bocconcelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Roberta Saltarelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Lorenzo Ferri
- Department of Neuroscience and Medical Genetics, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Laura Barberi
- DAHFMO-Unit of Histology and Medical Embryology, Laboratory Affiliated to Istituto Pasteur Italia, University of Rome La Sapienza, Rome, Italy
| | - Fabiana Fanelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Amelia Morrone
- Department of Neuroscience and Medical Genetics, Meyer Children's Hospital IRCCS, Florence, Italy
- Department of NEUROFARBA, University of Florence, Florence, Italy
| | - Rita Barone
- Child Neurology and Psychiatry Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
- Research Unit of Rare Diseases and Neurodevelopmental Disorders, Oasi Research Institute-IRCCS, Troina, Italy
| | - Renzo Guerrini
- Department of Neuroscience and Medical Genetics, Meyer Children's Hospital IRCCS, Florence, Italy
- Department of NEUROFARBA, University of Florence, Florence, Italy
| | - Antonio Musarò
- DAHFMO-Unit of Histology and Medical Embryology, Laboratory Affiliated to Istituto Pasteur Italia, University of Rome La Sapienza, Rome, Italy
| | - Vilberto Stocchi
- Department of Human Sciences for the Promotion of Quality of Life, University San Raffaele, Rome, Italy
| | - Elena Barbieri
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
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Sarad K, Jankowska U, Skupien-Rabian B, Babler A, Kramann R, Dulak J, Jaźwa-Kusior A. Senescence of endothelial cells promotes phenotypic changes in adventitial fibroblasts: possible implications for vascular aging. Mol Cell Biochem 2024:10.1007/s11010-024-05028-7. [PMID: 38743322 DOI: 10.1007/s11010-024-05028-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 05/04/2024] [Indexed: 05/16/2024]
Abstract
Aging is the most important risk factor for the development of cardiovascular diseases. Senescent cells release plethora of factors commonly known as the senescence-associated secretory phenotype, which can modulate the normal function of the vascular wall. It is currently not well understood if and how endothelial cell senescence can affect adventitial niche. The aim of this study was to characterize oxidative stress-induced endothelial cells senescence and identify their paracrine effects on the primary cell type of the adventitia, the fibroblasts. Human aortic endothelial cells (HAEC) were treated with hydrogen peroxide to induce premature senescence. Mass spectrometry analysis identified several proteomic changes in senescent HAEC with top upregulated secretory protein growth differentiation factor 15 (GDF-15). Treatment of the human adventitial fibroblast cell line (hAdv cells) with conditioned medium (CM) from senescent HAEC resulted in alterations in the proteome of hAdv cells identified in mass spectrometry analysis. Majority of differentially expressed proteins in hAdv cells treated with CM from senescent HAEC were involved in the uptake and metabolism of lipoproteins, mitophagy and ferroptosis. We next analyzed if some of these changes and pathways might be regulated by GDF-15. We found that recombinant GDF-15 affected some ferroptosis-related factors (e.g. ferritin) and decreased oxidative stress in the analyzed adventitial fibroblast cell line, but it had no effect on erastin-induced cell death. Contrary, silencing of GDF-15 in hAdv cells was protective against this ferroptotic stimuli. Our findings can be of importance for potential therapeutic strategies targeting cell senescence or ferroptosis to alleviate vascular diseases.
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Affiliation(s)
- Katarzyna Sarad
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa Str. 7, 30-387, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Kraków, Poland
| | - Urszula Jankowska
- Proteomics and Mass Spectrometry Core Facility, Malopolska Centre of Biotechnology, Kraków, Poland
| | - Bozena Skupien-Rabian
- Proteomics and Mass Spectrometry Core Facility, Malopolska Centre of Biotechnology, Kraków, Poland
| | - Anne Babler
- Department for Renal and Hypertensive Diseases, Rheumatological and Immunological Diseases, RWTH Aachen University, Aachen, Germany
| | - Rafael Kramann
- Department for Renal and Hypertensive Diseases, Rheumatological and Immunological Diseases, RWTH Aachen University, Aachen, Germany
- Department of Internal Medicine, Nephrology and Transplantation, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Józef Dulak
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa Str. 7, 30-387, Krakow, Poland
| | - Agnieszka Jaźwa-Kusior
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa Str. 7, 30-387, Krakow, Poland.
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3
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Zhang M, Xing J, Zhao S, Lu M, Liu Y, Lin L, Gao W, Chen L, Li W, Shang J, Zhou J, Yin X, Zhu X. Exosomal YB-1 facilitates ovarian restoration by MALAT1/miR-211-5p/FOXO 3 axis. Cell Biol Toxicol 2024; 40:29. [PMID: 38700571 PMCID: PMC11068691 DOI: 10.1007/s10565-024-09871-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 04/24/2024] [Indexed: 05/06/2024]
Abstract
Premature ovarian failure (POF) affects many adult women less than 40 years of age and leads to infertility. Mesenchymal stem cells-derived small extracellular vesicles (MSCs-sEVs) are attractive candidates for ovarian function restoration and folliculogenesis for POF due to their safety and efficacy, however, the key mediator in MSCs-sEVs that modulates this response and underlying mechanisms remains elusive. Herein, we reported that YB-1 protein was markedly downregulated in vitro and in vivo models of POF induced with H2O2 and CTX respectively, accompanied by granulosa cells (GCs) senescence phenotype. Notably, BMSCs-sEVs transplantation upregulated YB-1, attenuated oxidative damage-induced cellular senescence in GCs, and significantly improved the ovarian function of POF rats, but that was reversed by YB-1 depletion. Moreover, YB-1 showed an obvious decline in serum and GCs in POF patients. Mechanistically, YB-1 as an RNA-binding protein (RBP) physically interacted with a long non-coding RNA, MALAT1, and increased its stability, further, MALAT1 acted as a competing endogenous RNA (ceRNA) to elevate FOXO3 levels by sequestering miR-211-5p to prevent its degradation, leading to repair of ovarian function. In summary, we demonstrated that BMSCs-sEVs improve ovarian function by releasing YB-1, which mediates MALAT1/miR-211-5p/FOXO3 axis regulation, providing a possible therapeutic target for patients with POF.
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Affiliation(s)
- Mengxue Zhang
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Jie Xing
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Department of Obstetrics and Gynecology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Shijie Zhao
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Department of Obstetrics and Gynecology, The Fourth Hospital of Changsha, Changsha, People's Republic of China
| | - Minjun Lu
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, People's Republic of China
| | - Yueqin Liu
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China
| | - Li Lin
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, People's Republic of China
| | - Wujiang Gao
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, People's Republic of China
| | - Lu Chen
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, People's Republic of China
| | - Wenxin Li
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, People's Republic of China
| | - Junyu Shang
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, People's Republic of China
| | - Jiamin Zhou
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, People's Republic of China
| | - Xinming Yin
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, People's Republic of China
| | - Xiaolan Zhu
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, 20 Zhengdong Road, Zhenjiang, Jiangsu, 212001, People's Republic of China.
- Institute of Reproductive Sciences, Jiangsu University, Zhenjiang, 212001, Jiangsu, People's Republic of China.
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Pagani S, Salerno M, Filardo G, Locs J, van Osch GJ, Vecstaudza J, Dolcini L, Borsari V, Fini M, Giavaresi G, Columbaro M. Human Osteoblasts' Response to Biomaterials for Subchondral Bone Regeneration in Standard and Aggressive Environments. Int J Mol Sci 2023; 24:14764. [PMID: 37834212 PMCID: PMC10573262 DOI: 10.3390/ijms241914764] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Osteochondral lesions, when not properly treated, may evolve into osteoarthritis (OA), especially in the elderly population, where altered joint function and quality are usual. To date, a collagen/collagen-magnesium-hydroxyapatite (Col/Col-Mg-HAp) scaffold (OC) has demonstrated good clinical results, although suboptimal subchondral bone regeneration still limits its efficacy. This study was aimed at evaluating the in vitro osteogenic potential of this scaffold, functionalized with two different strategies: the addition of Bone Morphogenetic Protein-2 (BMP-2) and the incorporation of strontium (Sr)-ion-enriched amorphous calcium phosphate (Sr-ACP) granules. Human osteoblasts were seeded on the functionalized scaffolds (OC+BMP-2 and OC+Sr-ACP, compared to OC) under stress conditions reproduced with the addition of H2O2 to the culture system, as well as in normal conditions, and evaluated in terms of morphology, metabolic activity, gene expression, and matrix synthesis. The OC+BMP-2 scaffold supported a better osteoblast morphology and stimulated scaffold colonization, cell activity, and extracellular matrix secretion, especially in the stressed culture environment but also in normal culture conditions, with increased expression of genes related to osteoblast differentiation. In conclusion, the incorporation of BMP-2 into the Col/Col-Mg-HAp scaffold also represents an improvement of the osteochondral scaffold in more challenging conditions, supporting further preclinical studies to optimize it for use in clinical practice.
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Affiliation(s)
- Stefania Pagani
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (S.P.); (V.B.); (G.G.)
| | - Manuela Salerno
- Applied and Translational Research Center, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Giuseppe Filardo
- Applied and Translational Research Center, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Janis Locs
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, LV-1007 Riga, Latvia; (J.L.); (J.V.)
| | - Gerjo J.V.M. van Osch
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands;
- Department of Otorhinolaryngology, Head and Neck Surgery, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
- Department of Biomechanical Engineering, Delft University of Technology, 2628 CD Delft, The Netherlands
| | - Jana Vecstaudza
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, LV-1007 Riga, Latvia; (J.L.); (J.V.)
| | | | - Veronica Borsari
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (S.P.); (V.B.); (G.G.)
| | - Milena Fini
- Scientific Direction, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
| | - Gianluca Giavaresi
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (S.P.); (V.B.); (G.G.)
| | - Marta Columbaro
- Electron Microscopy Platform, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
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Ashraf HM, Fernandez B, Spencer SL. The intensities of canonical senescence biomarkers integrate the duration of cell-cycle withdrawal. Nat Commun 2023; 14:4527. [PMID: 37500655 PMCID: PMC10374620 DOI: 10.1038/s41467-023-40132-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 07/10/2023] [Indexed: 07/29/2023] Open
Abstract
Senescence, a state of irreversible cell-cycle withdrawal, is difficult to distinguish from quiescence, a state of reversible cell-cycle withdrawal. This difficulty arises because quiescent and senescent cells are defined by overlapping biomarkers, raising the question of whether these states are truly distinct. To address this, we use single-cell time-lapse imaging to distinguish slow-cycling cells that spend long periods in quiescence from cells that never cycle after recovery from senescence-inducing treatments, followed by staining for various senescence biomarkers. We find that the staining intensity of multiple senescence biomarkers is graded rather than binary and reflects the duration of cell-cycle withdrawal, rather than senescence per se. Together, our data show that quiescent and apparent senescent cells are nearly molecularly indistinguishable from each other at a snapshot in time. This suggests that cell-cycle withdrawal itself is graded rather than binary, where the intensities of senescence biomarkers integrate the duration of past cell-cycle withdrawal.
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Affiliation(s)
- Humza M Ashraf
- Department of Biochemistry, University of Colorado, Boulder, CO, 80303, USA
- BioFrontiers Institute, University of Colorado, Boulder, CO, 80303, USA
| | - Brianna Fernandez
- Department of Biochemistry, University of Colorado, Boulder, CO, 80303, USA
- BioFrontiers Institute, University of Colorado, Boulder, CO, 80303, USA
| | - Sabrina L Spencer
- Department of Biochemistry, University of Colorado, Boulder, CO, 80303, USA.
- BioFrontiers Institute, University of Colorado, Boulder, CO, 80303, USA.
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Burnaevskiy N, Oshima J, Mendenhall AR. Rapid emergence of transcriptional heterogeneity upon molecular stress predisposes cells to two distinct states of senescence. GeroScience 2023; 45:1115-1130. [PMID: 36562924 PMCID: PMC9886721 DOI: 10.1007/s11357-022-00709-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 12/03/2022] [Indexed: 12/24/2022] Open
Abstract
Slowing aging can reduce the risk of chronic diseases. In particular, eliminating senescent cells is a promising approach to slow aging. Previous studies found that both cells from older animals and senescent cells have noisy gene expression. Here, we performed a large-scale single-cell RNA-sequencing time course to understand how transcriptional heterogeneity develops among senescent cells. We found that cells experiencing senescence-inducing oxidative stress rapidly adopt one of two major transcriptional states. One senescent cell state is associated with stress response, and the other is associated with tissue remodeling. We did not observe increased stochastic gene expression. This data is consistent with the idea that reproducible, limited, distinct, and coherent transcriptional states exist in senescent cell populations. These physiologically distinct senescent cell subtypes may each affect the aging process in unique ways and constitute a source of heterogeneity in aging.
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Affiliation(s)
- Nikolay Burnaevskiy
- Department of Pathology, University of Washington, Seattle, WA, USA
- Present Address: Altius Institute for Biomedical Sciences, Seattle, WA, USA
| | - Junko Oshima
- Department of Pathology, University of Washington, Seattle, WA, USA
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7
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Urolithin A attenuates auditory cell senescence by activating mitophagy. Sci Rep 2022; 12:7704. [PMID: 35546176 PMCID: PMC9095590 DOI: 10.1038/s41598-022-11894-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/28/2022] [Indexed: 11/08/2022] Open
Abstract
Aging of sensory organs is associated with a decline in mitochondrial function and the accumulation of dysfunctional mitochondria. Impaired mitophagy blocks the turnover of dysfunctional mitochondria and leads to their accumulation. Urolithin A (UA) induces mitophagy in various mammalian cells. This study was aimed at investigating the effect of the mitophagy activator, UA, on premature senescent auditory cells. The levels of cellular senescence-associated p53 and p21 significantly increased in H2O2-induced senescent House Ear Institute-Organ of Corti 1 (HEI-OC1) cells and cochlear explants. However, the levels of mitophagy-related molecules significantly decreased. UA significantly decreased the expression of senescence-associated p53 and p21, and increased the expression of mitophagy-related proteins, in H2O2-induced senescent cells and cochlear explants. The percentage of β-galactosidase-stained senescent cells also reduced in H2O2-treated cells and cochlear explants upon UA pre-treatment. The formation of mitophagosomes and mitophagolysosomes was restored upon UA pre-treatment of H2O2-induced senescent cells. The knockdown of mitophagy-related genes (Parkin and Bnip3) resulted in annulment of UA-induced anti-senescent activity. UA significantly increased the ATP content, mitochondrial DNA (mtDNA) integrity, and mitochondrial membrane potential in senescent HEI-OC1 cells. These findings indicate that UA counteracted mitophagy decline and prevented premature senescence in auditory cells. Hence, UA administration might be a promising strategy for preventing mitochondrial dysfunction in patients with age-related hearing loss.
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8
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Pyrroloquinoline quinone (PQQ) protects mitochondrial function of HEI-OC1 cells under premature senescence. NPJ AGING 2022; 8:3. [PMID: 35927260 PMCID: PMC9158787 DOI: 10.1038/s41514-022-00083-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 03/14/2022] [Indexed: 12/13/2022]
Abstract
The aim of this study was to investigate the effects of pyrroloquinoline quinone (PQQ), an oxidoreductase cofactor, on the H2O2-induced premature senescence model in HEI-OC1 auditory cells and to elucidate its mechanism of action in vitro. Cells were treated with PQQ for 1 day before H2O2 (100 μM) exposure. Mitochondrial respiratory capacity was damaged in this premature senescence model but was restored in cells pretreated with PQQ (0.1 nM or 1.0 nM). A decrease in mitochondrial potential, the promotion of mitochondrial fusion and the accelerated movement of mitochondria were all observed in PQQ-pretreated cells. The protein expression of sirtuin 1 (SIRT1) and peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α) were significantly decreased under H2O2 exposure while they were increased with PQQ pretreatment, and PGC-1α acetylation was significantly decreased. In conclusion, PQQ has a protective effect on the premature senescence model of HEI-OC1 auditory cells and is associated with the SIRT1/PGC-1α signaling pathway, mitochondrial structure, and mitochondrial respiratory capacity.
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Spinelli R, Florese P, Parrillo L, Zatterale F, Longo M, D’Esposito V, Desiderio A, Nerstedt A, Gustafson B, Formisano P, Miele C, Raciti GA, Napoli R, Smith U, Beguinot F. ZMAT3 hypomethylation contributes to early senescence of preadipocytes from healthy first-degree relatives of type 2 diabetics. Aging Cell 2022; 21:e13557. [PMID: 35146866 PMCID: PMC8920444 DOI: 10.1111/acel.13557] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/16/2021] [Accepted: 01/09/2022] [Indexed: 12/18/2022] Open
Abstract
Senescence of adipose precursor cells (APC) impairs adipogenesis, contributes to the age-related subcutaneous adipose tissue (SAT) dysfunction, and increases risk of type 2 diabetes (T2D). First-degree relatives of T2D individuals (FDR) feature restricted adipogenesis, reflecting the detrimental effects of APC senescence earlier in life and rendering FDR more vulnerable to T2D. Epigenetics may contribute to these abnormalities but the underlying mechanisms remain unclear. In previous methylome comparison in APC from FDR and individuals with no diabetes familiarity (CTRL), ZMAT3 emerged as one of the top-ranked senescence-related genes featuring hypomethylation in FDR and associated with T2D risk. Here, we investigated whether and how DNA methylation changes at ZMAT3 promote early APC senescence. APC from FDR individuals revealed increases in multiple senescence markers compared to CTRL. Senescence in these cells was accompanied by ZMAT3 hypomethylation, which caused ZMAT3 upregulation. Demethylation at this gene in CTRL APC led to increased ZMAT3 expression and premature senescence, which were reverted by ZMAT3 siRNA. Furthermore, ZMAT3 overexpression in APC determined senescence and activation of the p53/p21 pathway, as observed in FDR APC. Adipogenesis was also inhibited in ZMAT3-overexpressing APC. In FDR APC, rescue of ZMAT3 methylation through senolytic exposure simultaneously downregulated ZMAT3 expression and improved adipogenesis. Interestingly, in human SAT, aging and T2D were associated with significantly increased expression of both ZMAT3 and the P53 senescence marker. Thus, DNA hypomethylation causes ZMAT3 upregulation in FDR APC accompanied by acquisition of the senescence phenotype and impaired adipogenesis, which may contribute to FDR predisposition for T2D.
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Affiliation(s)
- Rosa Spinelli
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Pasqualina Florese
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Luca Parrillo
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Federica Zatterale
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Michele Longo
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Vittoria D’Esposito
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Antonella Desiderio
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Annika Nerstedt
- Lundberg Laboratory for Diabetes Research Department of Molecular and Clinical Medicine Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Birgit Gustafson
- Lundberg Laboratory for Diabetes Research Department of Molecular and Clinical Medicine Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Pietro Formisano
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Claudia Miele
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Gregory Alexander Raciti
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Raffaele Napoli
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
| | - Ulf Smith
- Lundberg Laboratory for Diabetes Research Department of Molecular and Clinical Medicine Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Francesco Beguinot
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
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10
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Interconnections between Inflammageing and Immunosenescence during Ageing. Cells 2022; 11:cells11030359. [PMID: 35159168 PMCID: PMC8834134 DOI: 10.3390/cells11030359] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/13/2022] [Accepted: 01/15/2022] [Indexed: 02/04/2023] Open
Abstract
Acute inflammation is a physiological response to injury or infection, with a cascade of steps that ultimately lead to the recruitment of immune cells to clear invading pathogens and heal wounds. However, chronic inflammation arising from the continued presence of the initial trigger, or the dysfunction of signalling and/or effector pathways, is harmful to health. While successful ageing in older adults, including centenarians, is associated with low levels of inflammation, elevated inflammation increases the risk of poor health and death. Hence inflammation has been described as one of seven pillars of ageing. Age-associated sterile, chronic, and low-grade inflammation is commonly termed inflammageing-it is not simply a consequence of increasing chronological age, but is also a marker of biological ageing, multimorbidity, and mortality risk. While inflammageing was initially thought to be caused by "continuous antigenic load and stress", reports from the last two decades describe a much more complex phenomenon also involving cellular senescence and the ageing of the immune system. In this review, we explore some of the main sources and consequences of inflammageing in the context of immunosenescence and highlight potential interventions. In particular, we assess the contribution of cellular senescence to age-associated inflammation, identify patterns of pro- and anti-inflammatory markers characteristic of inflammageing, describe alterations in the ageing immune system that lead to elevated inflammation, and finally assess the ways that diet, exercise, and pharmacological interventions can reduce inflammageing and thus, improve later life health.
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11
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Uda Y, Saini V, Petty CA, Alshehri M, Shi C, Spatz JM, Santos R, Newell CM, Huang TY, Kochen A, Kim JW, Constantinou CK, Saito H, Held KD, Hesse E, Pajevic PD. Parathyroid hormone signaling in mature osteoblasts/osteocytes protects mice from age-related bone loss. Aging (Albany NY) 2021; 13:25607-25642. [PMID: 34968192 PMCID: PMC8751595 DOI: 10.18632/aging.203808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 11/30/2021] [Indexed: 01/18/2023]
Abstract
Aging is accompanied by osteopenia, characterized by reduced bone formation and increased bone resorption. Osteocytes, the terminally differentiated osteoblasts, are regulators of bone homeostasis, and parathyroid hormone (PTH) receptor (PPR) signaling in mature osteoblasts/osteocytes is essential for PTH-driven anabolic and catabolic skeletal responses. However, the role of PPR signaling in those cells during aging has not been investigated. The aim of this study was to analyze the role of PTH signaling in mature osteoblasts/osteocytes during aging. Mice lacking PPR in osteocyte (Dmp1-PPRKO) display an age-dependent osteopenia characterized by a significant decrease in osteoblast activity and increase in osteoclast number and activity. At the molecular level, the absence of PPR signaling in mature osteoblasts/osteocytes is associated with an increase in serum sclerostin and a significant increase in osteocytes expressing 4-hydroxy-2-nonenals, a marker of oxidative stress. In Dmp1-PPRKO mice there was an age-dependent increase in p16Ink4a/Cdkn2a expression, whereas it was unchanged in controls. In vitro studies demonstrated that PTH protects osteocytes from oxidative stress-induced cell death. In summary, we reported that PPR signaling in osteocytes is important for protecting the skeleton from age-induced bone loss by restraining osteoclast's activity and protecting osteocytes from oxidative stresses.
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Affiliation(s)
- Yuhei Uda
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Vaibhav Saini
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Christopher A. Petty
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Majed Alshehri
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Chao Shi
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
- Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, Shaanxi Province, P.R. China
| | - Jordan M. Spatz
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- School of Medicine, University of California San Francisco, San Francisco, CA 94143, USA
| | - Roberto Santos
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Carly M. Newell
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Tim Y. Huang
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Alejandro Kochen
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Ji W. Kim
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Christodoulos K. Constantinou
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
| | - Hiroaki Saito
- Heisenberg-Group for Molecular Skeletal Biology, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany
| | - Kathryn D. Held
- Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Eric Hesse
- Heisenberg-Group for Molecular Skeletal Biology, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany
| | - Paola Divieti Pajevic
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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12
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Abadie S, Leduc C, Lintner K, Bedos P. The alkaloid centcyamine increases expression of klotho and lamin B1, slowing the onset of skin ageing in vitro and in vivo. Int J Cosmet Sci 2021; 43:561-572. [PMID: 34403147 DOI: 10.1111/ics.12731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/07/2021] [Accepted: 08/04/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Klotho is a protein known for its beneficial effects on longevity. Centcyamine is an alkaloid present in certain plants whose extracts have an anti-inflammatory effect. Skin fibroblasts are essential to the formation and structure of the dermis. OBJECTIVE Centcyamine is an indole-based alkaloid composed of coumaric acid, a resveratrol precursor and methoxytryptamine, which can be both a precursor, or a derivative, of melatonin. Given these building blocks and their well-known bioactivities, it was of interest to explore the potential benefits of using this aryl-alkaloid, in cosmetic skincare applications. METHODS We tested cultured normal human dermal fibroblasts (NHDF) in vitro to observe how supplementation with centcyamine improves properties of the cells to counteract the effect of ageing. The expression of genes and proteins of interest was quantified. The effect on doubling time and cell function was evaluated following treatment of the cells over several replication cycles. Skin firmness, red spot index and skin isotropy were measured with Dynaskin® , Visia® and Primos® equipment, respectively, and compared over two months in a vehicle-controlled clinical trial on 60 persons. RESULTS Centcyamine activates the expression of the gene KL and the related protein Klotho in dermal fibroblasts. Moreover, centcyamine slows the replicative ageing process of fibroblasts in culture. These cells retain cellular functions identical to those of young cells: the synthesis of lamin B1, a crucial regulatory protein of proliferation, as well as of collagen I and elastin is retained in aged cells. The clinical data are shown to improve skin isotropy in a majority of subjects, to reduce the red spot intensity and to maintain skin firmness in the treated group vs. the vehicle. CONCLUSION The alkaloid centcyamine induces changes in the metabolism of the ageing process of human dermal fibroblasts. The up-to-now unobserved implication of both Klotho and lamin B1 to maintain homeostasis of the skin opens new venues for the prevention of age-related changes in skin structure. The in vitro and clinical data, while not demonstrated to be causally related, converge towards a common goal of skin repair and slower ageing processes.
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Teulière J, Bernard C, Bapteste E. Interspecific interactions that affect ageing: Age-distorters manipulate host ageing to their own evolutionary benefits. Ageing Res Rev 2021; 70:101375. [PMID: 34082078 DOI: 10.1016/j.arr.2021.101375] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/22/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023]
Abstract
Genetic causes for ageing are traditionally investigated within a species. Yet, the lifecycles of many organisms intersect. Additional evolutionary and genetic causes of ageing, external to a focal species/organism, may thus be overlooked. Here, we introduce the phrase and concept of age-distorters and its evidence. Age-distorters carry ageing interfering genes, used to manipulate the biological age of other entities upon which the reproduction of age-distorters relies, e.g. age-distorters bias the reproduction/maintenance trade-offs of cells/organisms for their own evolutionary interests. Candidate age-distorters include viruses, parasites and symbionts, operating through specific, genetically encoded interferences resulting from co-evolution and arms race between manipulative non-kins and manipulable species. This interference results in organismal ageing when age-distorters prompt manipulated organisms to favor their reproduction at the expense of their maintenance, turning these hosts into expanded disposable soma. By relying on reproduction/maintenance trade-offs affecting disposable entities, which are left ageing to the reproductive benefit of other physically connected lineages with conflicting evolutionary interests, the concept of age-distorters expands the logic of the Disposable Soma theory beyond species with fixed germen/soma distinctions. Moreover, acknowledging age-distorters as external sources of mutation accumulation and antagonistic pleiotropic genes expands the scope of the mutation accumulation and of the antagonistic pleiotropy theories.
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Affiliation(s)
- Jérôme Teulière
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Sorbonne Université, CNRS, Museum National d'Histoire Naturelle, EPHE, Université des Antilles, Paris, France
| | - Charles Bernard
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Sorbonne Université, CNRS, Museum National d'Histoire Naturelle, EPHE, Université des Antilles, Paris, France
| | - Eric Bapteste
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Sorbonne Université, CNRS, Museum National d'Histoire Naturelle, EPHE, Université des Antilles, Paris, France.
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Lian WS, Wu RW, Chen YS, Ko JY, Wang SY, Jahr H, Wang FS. MicroRNA-29a Mitigates Osteoblast Senescence and Counteracts Bone Loss through Oxidation Resistance-1 Control of FoxO3 Methylation. Antioxidants (Basel) 2021; 10:antiox10081248. [PMID: 34439496 PMCID: PMC8389244 DOI: 10.3390/antiox10081248] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/01/2021] [Accepted: 08/01/2021] [Indexed: 12/20/2022] Open
Abstract
Senescent osteoblast overburden accelerates bone mass loss. Little is understood about microRNA control of oxidative stress and osteoblast senescence in osteoporosis. We revealed an association between microRNA-29a (miR-29a) loss, oxidative stress marker 8-hydroxydeoxyguanosine (8-OHdG), DNA hypermethylation marker 5-methylcystosine (5mC), and osteoblast senescence in human osteoporosis. miR-29a knockout mice showed low bone mass, sparse trabecular microstructure, and osteoblast senescence. miR-29a deletion exacerbated bone loss in old mice. Old miR-29a transgenic mice showed fewer osteoporosis signs, less 5mC, and less 8-OHdG formation than age-matched wild-type mice. miR-29a overexpression reversed age-induced senescence and osteogenesis loss in bone-marrow stromal cells. miR-29a promoted transcriptomic landscapes of redox reaction and forkhead box O (FoxO) pathways, preserving oxidation resistance protein-1 (Oxr1) and FoxO3 in old mice. In vitro, miR-29a interrupted DNA methyltransferase 3b (Dnmt3b)-mediated FoxO3 promoter methylation and senescence-associated β-galactosidase activity in aged osteoblasts. Dnmt3b inhibitor 5'-azacytosine, antioxidant N-acetylcysteine, or Oxr1 recombinant protein attenuated loss in miR-29a and FoxO3 to mitigate oxidative stress, senescence, and mineralization matrix underproduction. Taken together, miR-29a promotes Oxr1, compromising oxidative stress and FoxO3 loss to delay osteoblast aging and bone loss. This study sheds light on a new antioxidation mechanism by which miR-29a protects against osteoblast aging and highlights the remedial effects of miR-29a on osteoporosis.
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Affiliation(s)
- Wei-Shiung Lian
- Core Laboratory for Phenomics and Diagnostic, Department of Medical Research, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (Y.-S.C.); (S.-Y.W.)
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Re-Wen Wu
- Department of Orthopedic Surgery, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (R.-W.W.); (J.-Y.K.)
| | - Yu-Shan Chen
- Core Laboratory for Phenomics and Diagnostic, Department of Medical Research, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (Y.-S.C.); (S.-Y.W.)
| | - Jih-Yang Ko
- Department of Orthopedic Surgery, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (R.-W.W.); (J.-Y.K.)
| | - Shao-Yu Wang
- Core Laboratory for Phenomics and Diagnostic, Department of Medical Research, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (Y.-S.C.); (S.-Y.W.)
| | - Holger Jahr
- Department of Anatomy and Cell Biology, University Hospital RWTH Aachen, 52074 Aachen, Germany;
- Department of Orthopedic Surgery, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Feng-Sheng Wang
- Core Laboratory for Phenomics and Diagnostic, Department of Medical Research, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (Y.-S.C.); (S.-Y.W.)
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- Correspondence: ; Tel.: +886-7-731-7123
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15
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Schuster M, Tewary G, Bao X, Subedi P, Hauck SM, Olsen AK, Eide DM, Trott KR, Götz S, Atkinson MJ, Rosemann M. In vitro cellular and proteome assays identify Wnt pathway and CDKN2A-regulated senescence affected in mesenchymal stem cells from mice after a chronic LD gamma irradiation in utero. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2021; 60:397-410. [PMID: 34287697 PMCID: PMC8310520 DOI: 10.1007/s00411-021-00925-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
Reliable data on the effects of chronic prenatal exposure to low dose (LD) of ionizing radiation in humans are missing. There are concerns about adverse long-term effects that may persist throughout postnatal life of the offspring. Due to their slow cell cycle kinetics and life-long residence time in the organism, mesenchymal stem cells (MSCs) are more susceptible to low level genotoxic stress caused by extrinsic multiple LD events. The aim of this study was to investigate the effect of chronic, prenatal LD gamma irradiation to the biology of MSCs later in life. C3H mice were exposed in utero to chronic prenatal irradiation of 10 mGy/day over a period of 3 weeks. Two years later, MSCs were isolated from the bone marrow and analyzed in vitro for their radiosensitivity, for cellular senescence and for DNA double-strand break recognition after a second acute gamma-irradiation. In addition to these cellular assays, changes in protein expression were measured using HPLC-MS/MS and dysregulated molecular signaling pathways identified using bioinformatics. We observed radiation-induced proteomic changes in MSCs from the offspring of in utero irradiated mice (leading to ~ 9.4% of all detected proteins being either up- or downregulated) as compared to non-irradiated controls. The proteomic changes map to regulation pathways involved in the extracellular matrix, the response to oxidative stress, and the Wnt signaling pathway. In addition, chronic prenatal LD irradiation lead to an increased rate of in vitro radiation-induced senescence later in life and to an increased number of residual DNA double-strand breaks after 4 Gy irradiation, indicating a remarkable interaction of in vivo radiation in combination with a second acute dose of in vitro radiation. This study provides the first insight into a molecular mechanism of persistent MSC damage response by ionizing radiation exposure during prenatal time and will help to predict therapeutic safety and efficacy with respect to a clinical application of stem cells.
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Affiliation(s)
- Martina Schuster
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), Ingolstaedter Landstraße 1, 85764, Neuherberg, Germany
| | - Gargi Tewary
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), Ingolstaedter Landstraße 1, 85764, Neuherberg, Germany
| | - Xuanwen Bao
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), Ingolstaedter Landstraße 1, 85764, Neuherberg, Germany
| | - Prabal Subedi
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), Ingolstaedter Landstraße 1, 85764, Neuherberg, Germany
| | - Stefanie M Hauck
- Research Unit Protein Science, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), 80939, Munich, Germany
| | - Ann Karin Olsen
- Department of Molecular Biology/Domain for Infection Control and Environmental Health, Norwegian Institute of Public Health, Lovisenberggt. 8, 0456, Oslo, Norway
| | - Dag Markus Eide
- Department of Molecular Biology/Domain for Infection Control and Environmental Health, Norwegian Institute of Public Health, Lovisenberggt. 8, 0456, Oslo, Norway
| | - Klaus Rüdiger Trott
- Chair of Radiation Biology, Technical University Munich (TUM), 80333, Munich, Germany
| | - Sebastian Götz
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), Ingolstaedter Landstraße 1, 85764, Neuherberg, Germany
| | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), Ingolstaedter Landstraße 1, 85764, Neuherberg, Germany
- Chair of Radiation Biology, Technical University Munich (TUM), 80333, Munich, Germany
| | - Michael Rosemann
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), Ingolstaedter Landstraße 1, 85764, Neuherberg, Germany.
- Medical Graduate School, Technical University Munich (TUM), 80333, Munich, Germany.
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16
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Hettinger ZR, Kargl CK, Shannahan JH, Kuang S, Gavin TP. Extracellular vesicles released from stress-induced prematurely senescent myoblasts impair endothelial function and proliferation. Exp Physiol 2021; 106:2083-2095. [PMID: 34333817 DOI: 10.1113/ep089423] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/27/2021] [Indexed: 12/28/2022]
Abstract
NEW FINDINGS What is the central question of this study? What is the impact of stress-induced premature senescence on skeletal muscle myoblast-derived extracellular vesicles (EVs) and myoblast-endothelial cell crosstalk? What is the main finding and its importance? Hydrogen peroxide treatment of human myoblasts induced stress-induced premature senescence (SIPS) and increased the release of exosome-sized EVs (30-150 nm in size) five-fold compared to untreated controls. Treatment of SIPS myoblast-derived EVs on endothelial cells increased senescence markers and decreased proliferation. Gene expression analysis of SIPS myoblast-derived EVs revealed a four-fold increase in senescence factor transforming growth factor-β. These results highlight potential mechanisms by which senescence imparts deleterious effects on the cellular microenvironment. ABSTRACT Cellular senescence contributes to numerous diseases through the release of pro-inflammatory factors as part of the senescence-associated secretory phenotype (SASP). In skeletal muscle, resident muscle progenitor cells (satellite cells) express markers of senescence with advancing age and in response to various pathologies, which contributes to reduced regenerative capacities in vitro. Satellite cells regulate their microenvironment in part through the release of extracellular vesicles (EVs), but the effect of senescence on EV signaling is unknown. Primary human myoblasts were isolated following biopsies of the vastus lateralis from young healthy subjects. Hydrogen peroxide (H2 O2 ) treatment was used to achieve stress-induced premature senescence (SIPS) of myoblasts. EVs secreted by myoblasts with and without H2 O2 treatment were isolated, analysed and used to treat human umbilical vein endothelial cells (HUVECs) to assess senescence and angiogenic impact. H2 O2 treatment of primary human myoblasts in vitro increased markers of senescence (β-galactosidase and p21Cip1 ), decreased proliferation and increased exosome-like EV (30-150 nm) release approximately five-fold. In HUVECs, EV treatment from H2 O2 -treated myoblasts increased markers of senescence (β-galactosidase and transforming growth factor β), decreased proliferation and impaired HUVEC tube formation. Analysis of H2 O2 -treated myoblast-derived EV mRNA revealed a nearly four-fold increase in transforming growth factor β expression. Our novel results highlight the impact of SIPS on myoblast communication and identify a VasoMyo Crosstalk by which SIPS myoblast-derived EVs impair endothelial cell function in vitro.
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Affiliation(s)
- Zachary R Hettinger
- Max E. Wastl Human Performance Laboratory, Department of Health and Kinesiology, College of Health and Human Sciences, Purdue University, West Lafayette, IN, USA
| | - Christopher K Kargl
- Max E. Wastl Human Performance Laboratory, Department of Health and Kinesiology, College of Health and Human Sciences, Purdue University, West Lafayette, IN, USA
| | - Jonathan H Shannahan
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, USA
| | - Shihuan Kuang
- Department of Animal Sciences, College of Agriculture, Purdue University, West Lafayette, IN, USA
| | - Timothy P Gavin
- Max E. Wastl Human Performance Laboratory, Department of Health and Kinesiology, College of Health and Human Sciences, Purdue University, West Lafayette, IN, USA
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Licochalcone D Ameliorates Oxidative Stress-Induced Senescence via AMPK Activation. Int J Mol Sci 2021; 22:ijms22147324. [PMID: 34298945 PMCID: PMC8304008 DOI: 10.3390/ijms22147324] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/30/2021] [Accepted: 07/05/2021] [Indexed: 01/21/2023] Open
Abstract
Increased oxidative stress is a crucial factor for the progression of cellular senescence and aging. The present study aimed to investigate the effects of licochalcone D (Lico D) on oxidative stress-induced senescence, both in vitro and in vivo, and explore its potential mechanisms. Hydrogen peroxide (200 µM for double time) and D-galactose (D-Gal) (150 mg/kg) were used to induce oxidative stress in human bone marrow-mesenchymal stem cells (hBM-MSCs) and mice, respectively. We performed the SA-β-gal assay and evaluated the senescence markers, activation of AMPK, and autophagy. Lico D potentially reduced oxidative stress-induced senescence by upregulating AMPK-mediated activation of autophagy in hBM-MSCs. D-Gal treatment significantly increased the expression levels of senescence markers, such as p53 and p21, in the heart and hippocampal tissues, while this effect was reversed in the Lico D-treated animals. Furthermore, a significant increase in AMPK activation was observed in both tissues, while the activation of autophagy was only observed in the heart tissue. Interestingly, we found that Lico D significantly reduced the expression levels of the receptors for advanced glycation end products (RAGE) in the hippocampal tissue. Taken together, our findings highlight the antioxidant, anti-senescent, and cardioprotective effects of Lico D and suggest that the activation of AMPK and autophagy ameliorates the oxidative stress-induced senescence.
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18
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Senescence and associated blood-brain barrier alterations in vitro. Histochem Cell Biol 2021; 156:283-292. [PMID: 34043058 PMCID: PMC8460501 DOI: 10.1007/s00418-021-01992-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2021] [Indexed: 12/31/2022]
Abstract
Progressive deterioration of the central nervous system (CNS) is commonly associated with aging. An important component of the neurovasculature is the blood–brain barrier (BBB), majorly made up of endothelial cells joined together by intercellular junctions. The relationship between senescence and changes in the BBB has not yet been thoroughly explored. Moreover, the lack of in vitro models for the study of the mechanisms involved in those changes impede further and more in-depth investigations in the field. For this reason, we herein present an in vitro model of the senescent BBB and an initial attempt to identify senescence-associated alterations within.
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Fernandes SE, Alakesh A, Rajmani RS, Jhunjhunwala S, Saini DK. Aging associated altered response to intracellular bacterial infections and its implication on the host. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:119063. [PMID: 34022281 DOI: 10.1016/j.bbamcr.2021.119063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 01/10/2023]
Abstract
The effects of senescence on geriatric disorders are well explored, but how it influences infections in the elderly is poorly addressed. Here, we show that several anti-microbial responses are elevated in senescent epithelial cells and old mice, which results in decreased bacterial survival in the host after infection. We identify higher levels of iNOS as a crucial host response and show that p38 MAPK in senescent epithelial cells acts as a negative regulator of iNOS transcription. However, in older mice, the ability to impede bacterial infection does not result in enhanced survival, possibly because elevated pro-inflammatory responses are not countered by a robust host protective anti-inflammatory response. Overall, while addressing an alternate advantage of senescent cells, our study demonstrates that infection-associated morbidity in the elderly may not be the sole outcome of pathogen loads but may also be influenced by the host's ability to resolve inflammation-induced damage.
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Affiliation(s)
- Sheryl Erica Fernandes
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India
| | - Alakesh Alakesh
- Center For BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - R S Rajmani
- Center for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Siddharth Jhunjhunwala
- Center For BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India.
| | - Deepak Kumar Saini
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India; Center For BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India; Center for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India.
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20
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Ho CC, Ng SC, Chuang HL, Wen SY, Kuo CH, Mahalakshmi B, Huang CY, Kuo WW. Extracts of Jasminum sambac flowers fermented by Lactobacillus rhamnosus inhibit H 2 O 2 - and UVB-induced aging in human dermal fibroblasts. ENVIRONMENTAL TOXICOLOGY 2021; 36:607-619. [PMID: 33270331 DOI: 10.1002/tox.23065] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 11/15/2020] [Indexed: 06/12/2023]
Abstract
Ultraviolet (UV) irradiation is a crucial factor that leads to skin photoaging and results in increased DNA damage, oxidative stress, and collagen degradation. Jasmine flowers have been utilized as a traditional medicine in Asia to treat various diseases, including dermatitis, diarrhea, and fever. Furthermore, the fermented broth of Lactobacillus rhamnosus has been reported to exert protective effects on the skin. In the present study, jasmine flower extract was fermented with L. rhamnosus. We investigated the antioxidant and collagen-promoting effects on UVB/H2 O2 -induced HS68 dermal fibroblast cell damage. The results indicated that treatment with the fermented flower extracts of Jasminum sambac (F-FEJS) could enhance the viability of HS68 cells. Furthermore, the UVB/H2 O2 -induced excessive production of reactive oxygen species, degradation of collagen, activation of MAPKs, including P38, ERK, and JNK, and premature senescence were remarkably attenuated by F-FEJS in dermal fibroblast cells. The nuclear accumulation of p-c-jun, which is downstream of MAPK, and the inactivation of p-smad2/3, which is one of the crucial transcription factors that enhance collagen synthesis, were reversed in response to F-FEJS treatment in UVB/H2 O2 -exposed cells. Notably, the expression of antioxidant genes, such as HO-1, and the nuclear translocation of Nrf2 were further enhanced by F-FEJS in UVB/H2 O2 -treated cells. Interestingly, the F-FEJS-induced increase in ARE luciferase activity indicated the activation of Nrf2/ARE signaling. In conclusion, our findings demonstrated that F-FEJS can effectively ameliorate UVB/H2 O2 -induced dermal cell aging and may be considered a promising ingredient in skin aging therapy.
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Affiliation(s)
- Chih-Chu Ho
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
| | - Shang-Chuan Ng
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
| | - Ho-Lin Chuang
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
| | - Su-Ying Wen
- Department of Dermatology, Taipei City Hospital, Renai Branch, Taipei, Taiwan
- Department of Cosmetic Applications and Management, Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
- Department of Health Care Management, National Taipei University of Nursing and Health Sciences, Taipei City, Taiwan
| | - Chia-Hua Kuo
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - B Mahalakshmi
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Chih-Yang Huang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Center of General Education, Buddhist Tzu Chi Medical Foundation, Tzu Chi University of Science and Technology, Hualien, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
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21
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D'Amico AM, Vasquez KM. The multifaceted roles of DNA repair and replication proteins in aging and obesity. DNA Repair (Amst) 2021; 99:103049. [PMID: 33529944 DOI: 10.1016/j.dnarep.2021.103049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 12/14/2022]
Abstract
Efficient mechanisms for genomic maintenance (i.e., DNA repair and DNA replication) are crucial for cell survival. Aging and obesity can lead to the dysregulation of genomic maintenance proteins/pathways and are significant risk factors for the development of cancer, metabolic disorders, and other genetic diseases. Mutations in genes that code for proteins involved in DNA repair and DNA replication can also exacerbate aging- and obesity-related disorders and lead to the development of progeroid diseases. In this review, we will discuss the roles of various DNA repair and replication proteins in aging and obesity as well as investigate the possible mechanisms by which aging and obesity can lead to the dysregulation of these proteins and pathways.
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Affiliation(s)
- Alexandra M D'Amico
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Dell Pediatric Research Institute, 1400 Barbara Jordan Boulevard, Austin, TX, 78723, USA
| | - Karen M Vasquez
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Dell Pediatric Research Institute, 1400 Barbara Jordan Boulevard, Austin, TX, 78723, USA.
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22
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The aging proteostasis decline: From nematode to human. Exp Cell Res 2021; 399:112474. [PMID: 33434530 PMCID: PMC7868887 DOI: 10.1016/j.yexcr.2021.112474] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/21/2020] [Accepted: 01/02/2021] [Indexed: 02/08/2023]
Abstract
The aging proteostasis decline manifests in a failure of aging cells and organisms to properly respond to proteotoxic challenges. This proteostasis collapse has long been considered a hallmark of aging in nematodes, and has recently been shown to occur also in human cells upon entry to senescence, opening the way to exploring the phenomenon in the broader context of human aging. Cellular senescence is part of the normal human physiology of aging, with senescent cell accumulation as a prominent feature of aged tissues. Being highly resistant to cell death, senescent cells, as they accumulate, become pro-inflammatory and promote disease. Here we discuss the causes of human senescence proteostasis decline, in view of the current literature on nematodes, on the one hand, and senescence, on the other hand. We review two major aspects of the phenomenon: (1) the decline in transcriptional activation of stress-response pathways, and (2) impairments in proteasome function. We further outline potential underlying mechanisms of transcriptional proteostasis decline, focusing on reduced chromatin dynamics and compromised nuclear integrity. Finally, we discuss potential strategies for reinforcing proteostasis as a means to improve organismal health and address the relationship to senolytics.
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23
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Guo D, Cheng L, Shen Y, Li W, Li Q, Zhong Y, Miao Y. 6-Bromoindirubin-3'-oxime (6BIO) prevents myocardium from aging by inducing autophagy. Aging (Albany NY) 2020; 12:26047-26062. [PMID: 33401248 PMCID: PMC7803501 DOI: 10.18632/aging.202253] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 10/01/2020] [Indexed: 12/18/2022]
Abstract
6-Bromoindirubin-3’-oxime (6BIO) is a novel small molecule that exerts positive effects on several age-related alterations. However, the anti-aging effects of 6BIO on the aging heart remain unknown. Herein, we aim to investigate the effects of 6BIO on the myocardium and its underlying mechanism in vivo and vitro. Following 6BIO treatment, an increased p53 contents, a reduced p16 and β-gal levels, and attenuation of cardiac fibrosis were observed, suggesting 6BIO retarded aging of cardiomyocytes. As observed, 6BIO reduced p62 contents, elevated the levels of Beclin-1 and the ratio of LC3II/I, indicating the induction of autophagy, while the reduction of the accumulation of ROS indicated 6BIO alleviated oxidative stress. In addition, 6BIO treatment inhibited both GSK3β signaling and mTOR signaling. 6BIO might be a promising agent for preventing myocardium from aging.
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Affiliation(s)
- Donghao Guo
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China.,Division of Cardiology, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Lizhen Cheng
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yun Shen
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Wei Li
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Qinjie Li
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yuan Zhong
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Ya Miao
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
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24
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Rahimifard M, Baeeri M, Bahadar H, Moini-Nodeh S, Khalid M, Haghi-Aminjan H, Mohammadian H, Abdollahi M. Therapeutic Effects of Gallic Acid in Regulating Senescence and Diabetes; an In Vitro Study. Molecules 2020; 25:molecules25245875. [PMID: 33322612 PMCID: PMC7763304 DOI: 10.3390/molecules25245875] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 12/14/2022] Open
Abstract
Gallic acid (GA), a plant-derived ubiquitous secondary polyphenol metabolite, can be a useful dietary supplement. This in vitro study’s primary purpose was to assess the anti-aging properties of GA using rat embryonic fibroblast (REF) cells, antidiabetic effects via pancreatic islet cells, and finally, elucidating the molecular mechanisms of this natural compound. REF and islet cells were isolated from fetuses and pancreas of rats, respectively. Then, several senescence-associated molecular and biochemical parameters, along with antidiabetic markers, were investigated. GA caused a significant decrease in the β-galactosidase activity and reduced inflammatory cytokines and oxidative stress markers in REF cells. GA reduced the G0/G1 phase in senescent REF cells that led cells to G2/M. Besides, GA improved the function of the β cells. Flow cytometry and spectrophotometric analysis showed that it reduces apoptosis via inhibiting caspase-9 activity. Taken together, based on the present findings, this polyphenol metabolite at low doses regulates different pathways of senescence and diabetes through its antioxidative stress potential and modulation of mitochondrial complexes activities.
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Affiliation(s)
- Mahban Rahimifard
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, 1417613151 Tehran, Iran; (M.R.); (S.M.-N.); (M.K.); (H.M.)
| | - Maryam Baeeri
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, 1417613151 Tehran, Iran; (M.R.); (S.M.-N.); (M.K.); (H.M.)
- Correspondence: (M.B.); (M.A.)
| | - Haji Bahadar
- Institute of Paramedical Sciences, Khyber Medical University, 25120 Peshawar, Pakistan;
| | - Shermineh Moini-Nodeh
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, 1417613151 Tehran, Iran; (M.R.); (S.M.-N.); (M.K.); (H.M.)
| | - Madiha Khalid
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, 1417613151 Tehran, Iran; (M.R.); (S.M.-N.); (M.K.); (H.M.)
| | - Hamed Haghi-Aminjan
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, 5618953141 Ardabil, Iran;
| | - Hossein Mohammadian
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, 1417613151 Tehran, Iran; (M.R.); (S.M.-N.); (M.K.); (H.M.)
- Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, 1417614411 Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, 1417613151 Tehran, Iran; (M.R.); (S.M.-N.); (M.K.); (H.M.)
- Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, 1417614411 Tehran, Iran
- Correspondence: (M.B.); (M.A.)
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25
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Shi HZ, Zeng JC, Shi SH, Giannakopoulos H, Zhang QZ, Le AD. Extracellular Vesicles of GMSCs Alleviate Aging-Related Cell Senescence. J Dent Res 2020; 100:283-292. [PMID: 33073684 DOI: 10.1177/0022034520962463] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Healthy aging is a complex biological process with progressive accumulation of senescent cells characterized by stable cell cycle arrest, resulting in impaired homeostasis, regenerative potential, and gradual functional decline in multiple tissues and organs, whereby the aberrant activation of mammalian target of rapamycin (mTOR) signaling networks plays a central role. Herein, we explored the effects of extracellular vesicles (EVs) released by gingiva-derived mesenchymal stem cells (GMSC-EVs) on oxidative stress-induced cellular senescence in human endothelial cells and skin fibroblasts and their antiaging potentials. Our results showed that GMSC-EVs robustly abrogated oxidative stress-induced upregulation in the expression of cellular senescence-related genes, such as β-galactosidase, p21, p53, and γH2AX, and mTOR/pS6 signaling pathway, in human umbilical vein endothelial cells (HUVECs) and skin fibroblasts. Meanwhile, GMSC-EVs restored oxidative stress-induced impairment in proliferation and tube formation by HUVECs. Systemic administration of GMSC-EVs attenuated aging-associated elevation in the expression levels of p21, mTOR/pS6, interleukin 6, and tumor necrosis factor α in skin and heart tissues of aged mice. These findings suggest that GMSC-EVs could be a potential alternative source of cell-free product for attenuation of aging-related skin and vascular dysfunctions due to their potent inhibitory effects on oxidative stress-induced cellular senescence in endothelial cells and skin fibroblasts.
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Affiliation(s)
- H Z Shi
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
- Health Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - J C Zeng
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
| | - S H Shi
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
| | - H Giannakopoulos
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
- Department of Oral & Maxillofacial Surgery, Penn Medicine Hospital of the University of Pennsylvania, Perelman Center for Advanced Medicine, Philadelphia, PA, USA
| | - Q Z Zhang
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
| | - A D Le
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
- Department of Oral & Maxillofacial Surgery, Penn Medicine Hospital of the University of Pennsylvania, Perelman Center for Advanced Medicine, Philadelphia, PA, USA
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26
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Skin Protective Activity of LactoSporin-the Extracellular Metabolite from Bacillus Coagulans MTCC 5856. COSMETICS 2020. [DOI: 10.3390/cosmetics7040076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background: Probiotics and their products are increasingly used in skincare in recent years. Postbiotics are defined as any substance derived through the metabolic activity of a probiotic microorganism, which exerts a direct or indirect beneficial effect on the host. The extracellular metabolites of probiotic bacteria have antimicrobial activities, protect against acne, and improve skin condition. We studied skin protective activities of the extracellular metabolite (LactoSporin) of a spore-forming probiotic Bacillus coagulans MTCC 5856 in vitro. Methods: LactoSporin was evaluated for antioxidant activity by free radical scavenging activity and reactive oxygen quenching activity in human dermal fibroblast cells. Protection of fibroblasts from UV-induced apoptosis and cell death was studied by flow cytometry and neutral red uptake assays. Enzyme inhibition assays were carried out for collagenase, Elastase, and Hyaluronidase. Gene expression studies were carried out using polymerase chain reaction. Results: LactoSporin showed antioxidant activity and was found to protect skin cells from UV-induced apoptosis and cell death. LactoSporin inhibited collagenase, elastase, and hyaluronidase activity and upregulated the expression of hyaluronan synthase, transforming growth factor and epidermal growth factor, which are associated with extracellular matrix integrity. Conclusions: These results suggest LactoSporin is a skin protective postbiotic with wide application in cosmetic formulations.
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27
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Tripathi M, Yen PM, Singh BK. Protocol to Generate Senescent Cells from the Mouse Hepatic Cell Line AML12 to Study Hepatic Aging. STAR Protoc 2020; 1:100064. [PMID: 33111102 PMCID: PMC7580094 DOI: 10.1016/j.xpro.2020.100064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Previously developed senescent primary fibroblast models have limited relevance to study age-related changes in metabolically active tissues such as the liver. Here, we describe a protocol to generate senescent cells from the mouse hepatic cell line, AML12. These senescent cells exhibit molecular and metabolic signatures that are similar to those observed in livers from aged mice. These senescent AML12 cells should be a useful in vitro model to study the metabolic effects of aging in the liver. For complete details on the use and execution of this protocol, please refer to Singh et al. (2020).
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Affiliation(s)
- Madhulika Tripathi
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Paul Michael Yen
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
- Duke University School of Medicine, Durham, NC, USA
| | - Brijesh Kumar Singh
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
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28
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Jang YK, Chung TY, Shin YJ. Effect of Cyclosporine A-induced Senescence on Cultured Human Corneal Endothelial Cells. JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY 2020. [DOI: 10.3341/jkos.2020.61.9.999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Singh BK, Tripathi M, Sandireddy R, Tikno K, Zhou J, Yen PM. Decreased autophagy and fuel switching occur in a senescent hepatic cell model system. Aging (Albany NY) 2020; 12:13958-13978. [PMID: 32712601 PMCID: PMC7425478 DOI: 10.18632/aging.103740] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/18/2020] [Indexed: 02/05/2023]
Abstract
Although aging in the liver contributes to the development of chronic liver diseases such as NAFLD and insulin resistance, little is known about the molecular and metabolic details of aging in hepatic cells. To examine these issues, we used sequential oxidative stress with hydrogen peroxide to induce premature senescence in AML12 hepatic cells. The senescent cells exhibited molecular and metabolic signatures, increased SA-βGal and γH2A.X staining, and elevated senescence and pro-inflammatory gene expression that resembled livers from aged mice. Metabolic phenotyping showed fuel switching towards glycolysis and mitochondrial glutamine oxidation as well as impaired energy production. The senescent AML12 cells also had increased mTOR signaling and decreased autophagy which likely contributed to the fuel switching from β-oxidation that occurred in normal AML12 cells. Additionally, senescence-associated secretory phenotype (SASP) proteins from conditioned media of senescent cells sensitized normal AML12 cells to palmitate-induced toxicity, a known pathological effect of hepatic aging. In summary, we have generated senescent AML12 cells which displayed the molecular hallmarks of aging and also exhibited the aberrant metabolic phenotype, mitochondrial function, and cell signaling that occur in the aged liver.
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Affiliation(s)
- Brijesh Kumar Singh
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Madhulika Tripathi
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Reddemma Sandireddy
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Keziah Tikno
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Jin Zhou
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Paul Michael Yen
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore.,Duke University School of Medicine, Durham, NC 27710, USA
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30
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Mohamad Kamal NS, Safuan S, Shamsuddin S, Foroozandeh P. Aging of the cells: Insight into cellular senescence and detection Methods. Eur J Cell Biol 2020; 99:151108. [PMID: 32800277 DOI: 10.1016/j.ejcb.2020.151108] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/10/2020] [Indexed: 01/10/2023] Open
Abstract
Cellular theory of aging states that human aging is the result of cellular aging, in which an increasing proportion of cells reach senescence. Senescence, from the Latin word senex, means "growing old," is an irreversible growth arrest which occurs in response to damaging stimuli, such as DNA damage, telomere shortening, telomere dysfunction and oncogenic stress leading to suppression of potentially dysfunctional, transformed, or aged cells. Cellular senescence is characterized by irreversible cell cycle arrest, flattened and enlarged morphology, resistance to apoptosis, alteration in gene expression and chromatin structure, expression of senescence associated- β-galactosidase (SA-β-gal) and acquisition of senescence associated secretory phenotype (SASP). In this review paper, different types of cellular senescence including replicative senescence (RS) which occurs due to telomere shortening and stress induced premature senescence (SIPS) which occurs in response to different types of stress in cells, are discussed. Biomarkers of cellular senescence and senescent assays including BrdU incorporation assay, senescence associated- β-galactosidase (SA-β-gal) and senescence-associated heterochromatin foci assays to detect senescent cells are also addressed.
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Affiliation(s)
- Nor Shaheera Mohamad Kamal
- School of Health Sciences, Universiti Sains Malaysia Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Sabreena Safuan
- School of Health Sciences, Universiti Sains Malaysia Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Shaharum Shamsuddin
- School of Health Sciences, Universiti Sains Malaysia Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia; USM-RIKEN International Centre for Ageing Science (URICAS), Universiti Sains Malaysia, 11800 Georgetown, Penang, Malaysia
| | - Parisa Foroozandeh
- USM-RIKEN International Centre for Ageing Science (URICAS), Universiti Sains Malaysia, 11800 Georgetown, Penang, Malaysia.
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31
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32
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Makau J, Kitagawa A, Kitamura K, Yamaguchi T, Mizuta S. Design and Development of an HBT-Based Ratiometric Fluorescent Probe to Monitor Stress-Induced Premature Senescence. ACS OMEGA 2020; 5:11299-11307. [PMID: 32478217 PMCID: PMC7254510 DOI: 10.1021/acsomega.9b04208] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 04/29/2020] [Indexed: 05/11/2023]
Abstract
Stress-induced premature senescence (SIPS) can be induced in tumor cells by reactive oxygen species (ROS) or oncogenes. The antineoplastic drugs cause apoptosis and senescence by damaging the DNA. Although the detection of cellular senescence is important to monitor drug response during anticancer therapy, only a few probes have been studied for imaging SIPS. In this study, we developed 2-(2'-hydroxyphenyl)benzothiazole (HBT)-based fluorescent probes to determine SIPS by monitoring the oxidative stress and β-galactosidase activity. HBT is a commonly used fluorophore because of its luminescence mechanism via excited-state intramolecular proton transfer, and it has attractive properties, such as a four-level photochemical process and large Stokes shift (151 nm). A novel fluorescent probe, (2-(benzo[d]thiazol-2-yl)phenyl)boronic acid, was prepared for the detection of ROS, including H2O2, via the oxidation reaction of arylboronic acids to form the fluorescent phenol, HBT. In addition, to determine the enzymatic activity of β-galactosidase, a 2-(4'-chloro-2'-hydroxyphenyl)benzothiazole (CBT)-based enzymatic turn-on probe (CBT-β-Gal) was designed and synthesized. β-Galactosidase catalyzed the hydrolysis of β-galactopyranoside from CBT-β-Gal to release the fluorescent CBT. These probes were capable of ratiometric imaging the accumulation of H2O2 and the degree of β-galatosidase activity in contrast to H2O2-untreated and H2O2-treated HeLa cells. Furthermore, these probes were successfully employed for imaging the increased levels of ROS and β-galactosidase activity in the doxorubicin-treated HeLa cells.
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Affiliation(s)
- Juliann
Nzembi Makau
- Department
of Molecular Microbiology and Immunology, Graduate School of Biomedical
Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Ayako Kitagawa
- Graduate
School of Biomedical Sciences, Nagasaki
University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kanami Kitamura
- Graduate
School of Biomedical Sciences, Nagasaki
University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Tomoko Yamaguchi
- Graduate
School of Biomedical Sciences, Nagasaki
University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Satoshi Mizuta
- Graduate
School of Biomedical Sciences, Nagasaki
University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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33
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Senescence of IPF Lung Fibroblasts Disrupt Alveolar Epithelial Cell Proliferation and Promote Migration in Wound Healing. Pharmaceutics 2020; 12:pharmaceutics12040389. [PMID: 32344567 PMCID: PMC7238173 DOI: 10.3390/pharmaceutics12040389] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/15/2020] [Accepted: 04/22/2020] [Indexed: 01/10/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease marked by excessive accumulation of lung fibroblasts (LFs) and collagen in the lung parenchyma. The mechanisms that underlie IPF pathophysiology are thought to reflect repeated alveolar epithelial injury leading to an aberrant wound repair response. Recent work has shown that IPF-LFs display increased characteristics of senescence including growth arrest and a senescence-associated secretory phenotype (SASP) suggesting that senescent LFs contribute to dysfunctional wound repair process. Here, we investigated the influence of senescent LFs on alveolar epithelial cell repair responses in a co-culture system. Alveolar epithelial cell proliferation was attenuated when in co-culture with cells or conditioned media from, senescence-induced control LFs or IPF-LFs. Cell-cycle analyses showed that a larger number of epithelial cells were arrested in G2/M phase when co-cultured with IPF-LFs, than in monoculture. Paradoxically, the presence of LFs resulted in increased A549 migration after mechanical injury. Our data suggest that senescent LFs may contribute to aberrant re-epithelialization by inhibiting proliferation in IPF.
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34
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Xie X, Song X, Liu X, Luo X, Nabijiang M, Ma M, Li Y. Up-Regulation of GATA4 Regulates Human Lens Epithelial Cell Function in Age-Related Cataract. Ophthalmic Res 2020; 63:564-571. [PMID: 32305986 DOI: 10.1159/000507962] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 04/17/2020] [Indexed: 11/19/2022]
Abstract
PURPOSE GATA4 has emerged as a novel regulator that plays a critical role in mediating senescence. However, the role of GATA4 in age-related cataract (ARC), the leading cause of visual impairment, requires further elucidation. METHODS GATA4 expression was measured by quantitative RT-PCR and capillary Western immunoassay (WES). The MTT assay, EdU assay, and rhodamine-123/Hoechst and calcein-AM/propidium iodide double staining were used to investigate the role of GATA4 in the viability, proliferation, and apoptosis of cultured human lens epithelial cells (HLECs). RESULTS HLECs were subjected to 3 different treatment models, including prolonged exposure to low-dose H2O2, UVB irradiation, and mild heating, to simulate senescence and apoptosis. GATA4 expression was significantly increased in these models in a time- and dose-dependent manner. Overexpression of GATA4 reduced cell viability, accelerated apoptosis development, and reduced the proliferation of HLECs. Furthermore, the expression of GATA4 from ARC was up-regulated at both mRNA and at protein level compared with clear lenses. CONCLUSION GATA4 is up-regulated in all 3 models of HLECs in vitro and the cells from ARC lenses in vivo. Up-regulation of GATA4 mediates HLEC dysfunction. GATA4-mediated effects in HLECs would provide a novel insight into the pathogenesis of ARC.
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Affiliation(s)
- Xiaodong Xie
- Department of Ophthalmology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China,
| | - Xiaofei Song
- Medical Department, Zhabei Central Hospital of Jing'an District, Shanghai, China
| | - Xin Liu
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China.,Key Laboratory of Myopia, Ministry of Health, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China
| | - Xiaogang Luo
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China.,Key Laboratory of Myopia, Ministry of Health, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China
| | - Maidina Nabijiang
- Department of Ophthalmology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Mengqi Ma
- Department of Ophthalmology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Ying Li
- Department of Ophthalmology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
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35
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Al-Azab M, Wang B, Elkhider A, Walana W, Li W, Yuan B, Ye Y, Tang Y, Almoiliqy M, Adlat S, Wei J, Zhang Y, Li X. Indian Hedgehog regulates senescence in bone marrow-derived mesenchymal stem cell through modulation of ROS/mTOR/4EBP1, p70S6K1/2 pathway. Aging (Albany NY) 2020; 12:5693-5715. [PMID: 32235006 PMCID: PMC7185126 DOI: 10.18632/aging.102958] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 02/19/2020] [Indexed: 12/12/2022]
Abstract
Premature senescence of bone marrow-derived mesenchymal stem cells (BMSC) remains a major concern for their application clinically. Hedgehog signaling has been reported to regulate aging-associated markers and MSC skewed differentiation. Indian Hedgehog (IHH) is a ligand of Hedgehog intracellular pathway considered as an inducer in chondrogenesis of human BMSC. However, the role of IHH in the aging of BMSC is still unclear. This study explored the role IHH in the senescence of BMSC obtained from human samples and senescent mice. Isolated BMSC were transfected with IHH siRNA or incubated with exogenous IHH protein and the mechanisms of aging and differentiation investigated. Moreover, the interactions between IHH, and mammalian target of rapamycin (mTOR) and reactive oxygen species (ROS) were evaluated using the corresponding inhibitors and antioxidants. BMSC transfected with IHH siRNA showed characteristics of senescence-associated features including increased senescence-associated β-galactosidase activity (SA-β-gal), induction of cell cycle inhibitors (p53/p16), development of senescence-associated secretory phenotype (SASP), activation of ROS and mTOR pathways as well as the promotion of skewed differentiation. Interestingly, BMSC treatment with IHH protein reversed the senescence markers and corrected biased differentiation. Moreover, IHH shortage-induced senescence signs were compromised after mTOR and ROS inhibition. Our findings presented anti-aging activity for IHH in BMSC through down-regulation of ROS/mTOR pathways. This discovery might contribute to increasing the therapeutic, immunomodulatory and regenerative potency of BMSC and introduce a novel remedy in the management of aging-related diseases.
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Affiliation(s)
- Mahmoud Al-Azab
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China.,Department of Immunology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Bing Wang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Abdalkhalig Elkhider
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Williams Walana
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China.,Department of Clinical Microbiology, University for Development Studies, Tamale, Ghana
| | - Weiping Li
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Bo Yuan
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Yunshan Ye
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Yawei Tang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Marwan Almoiliqy
- Department of Pharmacology, College of Pharmacy, Dalian Medical University, Liaoning, China
| | - Salah Adlat
- Key Laboratory of Molecular Epigenetics of MOE, School of Life Science, Northeast Normal University, Changchun, Jilin Province, China
| | - Jing Wei
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
| | - Yan Zhang
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Dalian Medical University, Liaoning, China
| | - Xia Li
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning, China
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Waters DW, Blokland KEC, Pathinayake PS, Wei L, Schuliga M, Jaffar J, Westall GP, Hansbro PM, Prele CM, Mutsaers SE, Bartlett NW, Burgess JK, Grainge CL, Knight DA. STAT3 Regulates the Onset of Oxidant-induced Senescence in Lung Fibroblasts. Am J Respir Cell Mol Biol 2020; 61:61-73. [PMID: 30608861 DOI: 10.1165/rcmb.2018-0328oc] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease of unknown cause with a median survival of only 3 years. Other investigators and we have shown that fibroblasts derived from IPF lungs display characteristics of senescent cells, and that dysregulated activation of the transcription factor signal transducer and activator of transcription 3 (STAT3) correlates with IPF progression. The question of whether STAT3 activation is involved in fibroblast senescence remains unanswered. We hypothesized that inhibiting STAT3 activation after oxidant-induced senescence would attenuate characteristics of the senescent phenotype. We aimed to characterize a model of oxidant-induced senescence in human lung fibroblasts and to determine the effect of inhibiting STAT3 activity on the development of senescence. Exposing human lung fibroblasts to 150 μM hydrogen peroxide (H2O2) resulted in increased senescence-associated β-galactosidase content and expression of p21 and IL-6, all of which are features of senescence. The shift into senescence was accompanied by an increase of STAT3 translocation to the nucleus and mitochondria. Additionally, Seahorse analysis provided evidence of increased mitochondrial respiration characterized by increased basal respiration, proton leak, and an associated increase in superoxide (O2-) production in senescent fibroblasts. Targeting STAT3 activity using the small-molecule inhibitor STA-21 attenuated IL-6 production, reduced p21 levels, decreased senescence-associated β-galactosidase accumulation, and restored normal mitochondrial function. The results of this study illustrate that stress-induced senescence in lung fibroblasts involves the activation of STAT3, which can be pharmacologically modulated.
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Affiliation(s)
- David W Waters
- 1 School of Biomedical Sciences and Pharmacy and.,2 National Health and Medical Research Council Centre of Research Excellence in Pulmonary Fibrosis, Camperdown, Australia
| | - Kaj E C Blokland
- 1 School of Biomedical Sciences and Pharmacy and.,2 National Health and Medical Research Council Centre of Research Excellence in Pulmonary Fibrosis, Camperdown, Australia.,3 Department of Pathology and Medical Biology, and.,4 Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Lan Wei
- 1 School of Biomedical Sciences and Pharmacy and
| | | | - Jade Jaffar
- 6 Allergy, Immunology and Respiratory Medicine, Alfred Hospital, Prahran, Australia; and
| | - Glen P Westall
- 5 School of Medicine and Public Health, University of Newcastle, Callaghan, Australia
| | | | - Cecilia M Prele
- 7 Centre for Cell Therapy and Regenerative Medicine, School of Biomedical Sciences, and.,8 Institute for Respiratory Health, University of Western Australia, Nedlands, Australia
| | - Steven E Mutsaers
- 7 Centre for Cell Therapy and Regenerative Medicine, School of Biomedical Sciences, and.,8 Institute for Respiratory Health, University of Western Australia, Nedlands, Australia
| | | | | | - Christopher L Grainge
- 5 School of Medicine and Public Health, University of Newcastle, Callaghan, Australia
| | - Darryl A Knight
- 1 School of Biomedical Sciences and Pharmacy and.,2 National Health and Medical Research Council Centre of Research Excellence in Pulmonary Fibrosis, Camperdown, Australia
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37
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Pieńkowska N, Bartosz G, Pichla M, Grzesik-Pietrasiewicz M, Gruchala M, Sadowska-Bartosz I. Effect of antioxidants on the H 2O 2-induced premature senescence of human fibroblasts. Aging (Albany NY) 2020; 12:1910-1927. [PMID: 31962290 PMCID: PMC7053616 DOI: 10.18632/aging.102730] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/02/2020] [Indexed: 01/30/2023]
Abstract
The study was aimed at evaluation of the role of secondary oxidative stress in the stress-induced premature senescence (SIPS) of human fibroblasts induced by H2O2. Two fibroblast lines were used: lung MRC-5 and ear H8F2p25LM fibroblasts. The lines differed considerably in sensitivity to H2O2 (IC50 of 528 and 33.5 μM, respectively). The cells were exposed to H2O2 concentrations corresponding to IC50 and after 24 h supplemented with a range of antioxidants. Most of antioxidants studied slightly augmented the survival of fibroblasts at single concentrations or in a narrow concentration range, but the results were not consistent among the cell lines. Chosen antioxidants (4-amino-TEMPO, curcumin, caffeic acid and p-coumaric acid) did not restore the level of glutathione decreased by H2O2. Hydrogen peroxide treatment did not induce secondary production of H2O2 and even decreased it, decreased mitochondrial potential in both cell lines and induced changes in the mitochondrial mass inconsistent between the lines. Antioxidant protected mitochondrial potential only in H8F2p25LM cells, but attenuated changes in mitochondrial mass. These results speak against the intermediacy of secondary oxidative stress in the SIPS induced by H2O2 and suggest that the small protective action of antioxidants is due to their effects on mitochondria.
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Affiliation(s)
- Natalia Pieńkowska
- Department of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, Rzeszow, Poland
| | - Grzegorz Bartosz
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Monika Pichla
- Department of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, Rzeszow, Poland
| | - Michalina Grzesik-Pietrasiewicz
- Department of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, Rzeszow, Poland
| | - Martyna Gruchala
- Cytometry Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection University of Lodz, Lodz, Poland
| | - Izabela Sadowska-Bartosz
- Department of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, Rzeszow, Poland
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Guo Y, Ayers JL, Carter KT, Wang T, Maden SK, Edmond D, Newcomb P P, Li C, Ulrich C, Yu M, Grady WM. Senescence-associated tissue microenvironment promotes colon cancer formation through the secretory factor GDF15. Aging Cell 2019; 18:e13013. [PMID: 31389184 PMCID: PMC6826139 DOI: 10.1111/acel.13013] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 06/04/2019] [Accepted: 07/05/2019] [Indexed: 12/14/2022] Open
Abstract
The risk of colorectal cancer (CRC) varies between people, and the cellular mechanisms mediating the differences in risk are largely unknown. Senescence has been implicated as a causative cellular mechanism for many diseases, including cancer, and may affect the risk for CRC. Senescent fibroblasts that accumulate in tissues secondary to aging and oxidative stress have been shown to promote cancer formation via a senescence-associated secretory phenotype (SASP). In this study, we assessed the role of senescence and the SASP in CRC formation. Using primary human colon tissue, we found an accumulation of senescent fibroblasts in normal tissues from individuals with advanced adenomas or carcinomas in comparison with individuals with no polyps or CRC. In in vitro and ex vivo model systems, we induced senescence using oxidative stress in colon fibroblasts and demonstrated that the senescent fibroblasts secrete GDF15 as an essential SASP factor that promotes cell proliferation, migration, and invasion in colon adenoma and CRC cell lines as well as primary colon organoids via the MAPK and PI3K signaling pathways. In addition, we observed increased mRNA expression of GDF15 in primary normal colon tissue from people at increased risk for CRC in comparison with average risk individuals. These findings implicate the importance of a senescence-associated tissue microenvironment and the secretory factor GDF15 in promoting CRC formation.
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Affiliation(s)
- Yuna Guo
- Clinical Research DivisionFred Hutchinson Cancer Research CenterSeattleWashington
| | - Jessica L. Ayers
- Clinical Research DivisionFred Hutchinson Cancer Research CenterSeattleWashington
| | - Kelly T. Carter
- Clinical Research DivisionFred Hutchinson Cancer Research CenterSeattleWashington
| | - Ting Wang
- Clinical Research DivisionFred Hutchinson Cancer Research CenterSeattleWashington
| | - Sean K. Maden
- Clinical Research DivisionFred Hutchinson Cancer Research CenterSeattleWashington
| | | | - Polly Newcomb P
- Public Health Sciences DivisionFred Hutchinson Cancer Research CenterSeattleWashington
| | - Christopher Li
- Public Health Sciences DivisionFred Hutchinson Cancer Research CenterSeattleWashington
| | - Cornelia Ulrich
- Public Health Sciences DivisionFred Hutchinson Cancer Research CenterSeattleWashington
- Department of Population Health SciencesHuntsman Cancer InstituteSalt Lake CityUtah
| | - Ming Yu
- Clinical Research DivisionFred Hutchinson Cancer Research CenterSeattleWashington
| | - William M. Grady
- Clinical Research DivisionFred Hutchinson Cancer Research CenterSeattleWashington
- Department of Internal MedicineUniversity of Washington School of MedicineSeattleWashington
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Madsen SD, Jones SH, Tucker HA, Giler MK, Muller DC, Discher CT, Russell KC, Dobek GL, Sammarco MC, Bunnell BA, O'Connor KC. Survival of aging CD264 + and CD264 - populations of human bone marrow mesenchymal stem cells is independent of colony-forming efficiency. Biotechnol Bioeng 2019; 117:223-237. [PMID: 31612990 DOI: 10.1002/bit.27195] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 09/20/2019] [Accepted: 10/07/2019] [Indexed: 12/17/2022]
Abstract
In vivo mesenchymal stem cell (MSC) survival is relevant to therapeutic applications requiring engraftment and potentially to nonengraftment applications as well. MSCs are a mixture of progenitors at different stages of cellular aging, but the contribution of this heterogeneity to the survival of MSC implants is unknown. Here, we employ a biomarker of cellular aging, the decoy TRAIL receptor CD264, to compare the survival kinetics of two cell populations in human bone marrow MSC (hBM-MSC) cultures. Sorted CD264+ hBM-MSCs from two age-matched donors have elevated β-galactosidase activity, decreased differentiation potential and form in vitro colonies inefficiently relative to CD264- hBM-MSCs. Counterintuitive to their aging phenotype, CD264+ hBM-MSCs exhibited comparable survival to matched CD264- hBM-MSCs from the same culture during in vitro colony formation and in vivo when implanted ectopically in immunodeficient NIH III mice. In vitro and in vivo survival of these two cell populations were independent of colony-forming efficiency. These findings have ramifications for the preparation of hBM-MSC therapies given the prevalence of aging CD264+ cells in hBM-MSC cultures and the popularity of colony-forming efficiency as a quality control metric in preclinical and clinical studies with MSCs.
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Affiliation(s)
- Sean D Madsen
- Department of Chemical and Biomolecular Engineering, School of Science and Engineering, Tulane University, New Orleans, Louisiana.,Center for Stem Cell Research and Regenerative Medicine, School of Medicine, Tulane University, New Orleans, Louisiana
| | - Sean H Jones
- Department of Comparative Medicine, School of Medicine, Tulane University, New Orleans, Louisiana
| | - H Alan Tucker
- Center for Stem Cell Research and Regenerative Medicine, School of Medicine, Tulane University, New Orleans, Louisiana
| | - Margaret K Giler
- Department of Chemical and Biomolecular Engineering, School of Science and Engineering, Tulane University, New Orleans, Louisiana.,Center for Stem Cell Research and Regenerative Medicine, School of Medicine, Tulane University, New Orleans, Louisiana
| | - Dyllan C Muller
- Department of Chemical and Biomolecular Engineering, School of Science and Engineering, Tulane University, New Orleans, Louisiana
| | - Carson T Discher
- Department of Chemical and Biomolecular Engineering, School of Science and Engineering, Tulane University, New Orleans, Louisiana
| | - Katie C Russell
- Department of Chemical and Biomolecular Engineering, School of Science and Engineering, Tulane University, New Orleans, Louisiana
| | - Georgina L Dobek
- Department of Comparative Medicine, School of Medicine, Tulane University, New Orleans, Louisiana
| | - Mimi C Sammarco
- Center for Stem Cell Research and Regenerative Medicine, School of Medicine, Tulane University, New Orleans, Louisiana.,Department of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana.,Center for Aging, School of Medicine, Tulane University, New Orleans, Louisiana
| | - Bruce A Bunnell
- Center for Stem Cell Research and Regenerative Medicine, School of Medicine, Tulane University, New Orleans, Louisiana.,Center for Aging, School of Medicine, Tulane University, New Orleans, Louisiana.,Department of Pharmacology, School of Medicine, Tulane University, New Orleans, Louisiana
| | - Kim C O'Connor
- Department of Chemical and Biomolecular Engineering, School of Science and Engineering, Tulane University, New Orleans, Louisiana.,Center for Stem Cell Research and Regenerative Medicine, School of Medicine, Tulane University, New Orleans, Louisiana.,Department of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana.,Center for Aging, School of Medicine, Tulane University, New Orleans, Louisiana
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40
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He J, Zhang A, Song Z, Guo S, Chen Y, Liu Z, Zhang J, Xu X, Liu J, Chu L. The resistant effect of SIRT1 in oxidative stress-induced senescence of rat nucleus pulposus cell is regulated by Akt-FoxO1 pathway. Biosci Rep 2019; 39:BSR20190112. [PMID: 30967498 PMCID: PMC6509061 DOI: 10.1042/bsr20190112] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/07/2019] [Accepted: 04/07/2019] [Indexed: 01/03/2023] Open
Abstract
Objective: The senescence of nucleus pulposus (NP) cells induced by oxidative stress is one of the important causes of intervertebral disc degeneration (IDD). Herein, we investigated the role and action mechanism of silent information regulator 1 (SIRT1) in oxidative stress-induced senescence of rat NP cell.Methods: Premature senescence of rat NP cells was induced by sublethal concentration of hydrogen peroxide (H2O2) (100 μM). SIRT1 was activated with SRT1720 (5 μM) to explore its effect on NP cells senescence. FoxO1 and Akt were inhibited by AS1842856 (0.2 μM) and MK-2206 (5 μM), respectively, to explore the role of Akt-FoxO1-SIRT1 axis in rat NP cells. Pretreatment with the resveratrol (20 μM), a common antioxidant and indirect activator of SIRT1, was done to investigate its role in senescent rat NP cells.Results: The mRNA and protein levels of SIRT1 were decreased in H2O2-induced senescent rat NP cells, and that specific activation of SIRT1 suppresses senescence. And the Akt-FoxO1 pathway, as the upstream of SIRT1, might be involved in the regulation of H2O2-induced senescence of rat NP cells by affecting the expression of SIRT1. In addition, the resveratrol played an anti-senescence role in rat NP cells, which might affect the Akt-FoxO1-SIRT1 axis.Conclusion: SIRT1 ameliorated oxidative stress-induced senescence of rat NP cell which was regulated by Akt-FoxO1 pathway, and resveratrol exerted anti-senescence effects by affecting this signaling axis.
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Affiliation(s)
- Junsheng He
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Ailiang Zhang
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Zhiwen Song
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Shiwu Guo
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Yuwei Chen
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Zhiyuan Liu
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
- Department of Orthopedics, The Affiliated Wujin Hospital of Jiangsu University, Changzhou 213003, China
| | - Jinlong Zhang
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Xu Xu
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Jinbo Liu
- Department of Spinal surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Lei Chu
- Department of Orthopedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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41
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Alicka M, Major P, Wysocki M, Marycz K. Adipose-Derived Mesenchymal Stem Cells Isolated from Patients with Type 2 Diabetes Show Reduced "Stemness" through an Altered Secretome Profile, Impaired Anti-Oxidative Protection, and Mitochondrial Dynamics Deterioration. J Clin Med 2019; 8:E765. [PMID: 31151180 PMCID: PMC6617220 DOI: 10.3390/jcm8060765] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/16/2019] [Accepted: 05/21/2019] [Indexed: 02/06/2023] Open
Abstract
The widespread epidemic of obesity and type 2 diabetes (T2D), suggests that both disorders are closely linked. Several pre-clinical and clinical studies have showed that adipose-derived mesenchymal stem cells (ASC) transplantation is efficient and safe. Moreover, scientists have already highlighted the therapeutic capacity of their secretomes. In this study, we used quantitative PCR, a flow cytometry-based system, the ELISA method, spectrophotometry, and confocal and scanning electron microscopy, to compare the differences in proliferation activity, viability, morphology, mitochondrial dynamics, mRNA and miRNA expression, as well as the secretory activity of ASCs derived from two donor groups-non-diabetic and T2D patients. We demonstrated that ASCs from T2D patients showed a reduced viability and a proliferative potential. Moreover, they exhibited mitochondrial dysfunction and senescence phenotype, due to excessive oxidative stress. Significant differences were observed in the expressions of miRNA involved in cell proliferations (miR-16-5p, miR-146a-5p, and miR-145-5p), as well as miRNA and genes responsible for glucose homeostasis and insulin sensitivity (miR-24-3p, 140-3p, miR-17-5p, SIRT1, HIF-1α, LIN28, FOXO1, and TGFβ). We have observed a similar correlation of miR-16-5p, miR-146a-5p, miR-24-3p, 140-3p, miR-17-5p, and miR-145-5p expression in extracellular vesicles fraction. Furthermore, we have shown that ASCT2D exhibited a lower VEGF, adiponectin, and CXCL-12 secretion, but showed an overproduction of leptin. We have shown that type 2 diabetes attenuated crucial functions of ASC, like proliferation, viability, and secretory activity, which highly reduced their therapeutic efficiency.
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Affiliation(s)
- Michalina Alicka
- Department of Experimental Biology, Wroclaw University of Environmental and Life Sciences, Norwida 27B, 50-365 Wrocław, Poland.
| | - Piotr Major
- 2'nd Department of General Surgery, Jagiellonian University Medical College, Kopernika 21, 31-501 Kraków, Poland.
| | - Michał Wysocki
- 2'nd Department of General Surgery, Jagiellonian University Medical College, Kopernika 21, 31-501 Kraków, Poland.
| | - Krzysztof Marycz
- Department of Experimental Biology, Wroclaw University of Environmental and Life Sciences, Norwida 27B, 50-365 Wrocław, Poland.
- Faculty of Veterinary Medicine, Equine Clinic-Equine Surgery, Justus-Liebig-University, 35392 Gießen, Germany.
- International Institute of Translational Medicine, Jesionowa, 11, Malin, 55-114 Wisznia Mała, Poland.
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42
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Ebegboni VJ, Balahmar RM, Dickenson JM, Sivasubramaniam SD. The effects of flavonoids on human first trimester trophoblast spheroidal stem cell self-renewal, invasion and JNK/p38 MAPK activation: Understanding the cytoprotective effects of these phytonutrients against oxidative stress. Biochem Pharmacol 2019; 164:289-298. [PMID: 31022396 DOI: 10.1016/j.bcp.2019.04.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 04/19/2019] [Indexed: 12/19/2022]
Abstract
Adequate invasion and complete remodelling of the maternal spiral arteries by the invading extravillous trophoblasts are the major determinants of a successful pregnancy. Increase in oxidative stress during pregnancy has been linked to the reduction in trophoblast invasion and incomplete conversion of the maternal spiral arteries, resulting in pregnancy complications such as pre-eclampsia, intrauterine growth restriction, and spontaneous miscarriages resulting in foetal/maternal mortality. The use of antioxidant therapy (vitamin C and E) and other preventative treatments (such as low dose aspirin) have been ineffective in preventing pre-eclampsia. Also, as the majority of antihypertensive drugs pose side effects, choosing an appropriate treatment would depend upon the efficacy and safety of mother/foetus. Since pre-eclampsia is mainly linked to placental oxidative stress, new diet-based antioxidants can be of use to prevent this condition. The antioxidant properties of flavonoids (naturally occurring phenolic compounds which are ubiquitously distributed in fruits and vegetables) have been well documented in non-trophoblast cells. Therefore, this study aimed to investigate the effects of flavonoids (quercetin, hesperidin) and their metabolites (Quercetin 3-O-β-glucuronide and hesperetin), either alone or in combination, on first trimester trophoblast cell line HTR-8/SVneo during oxidative stress. The data obtained from this study indicate that selected flavonoids, their respective metabolites significantly reduced the levels of reduced glutathione (p < 0.0001) during HR-induced oxidative stress. These flavonoids also inhibited the activation of pro-apoptotic kinases (p38 MAPK and c-Jun N-terminal kinase) during HR-induced phosphorylation. In addition, they enhanced spheroid stem-like cell generation from HTR8/SVneo cells, aiding their invasion. Our data suggest that dietary intake of food rich in quercetin or hesperidin during early pregnancy can significantly improve trophoblast (placenta) health and function against oxidative stress.
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Affiliation(s)
- Vernon J Ebegboni
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Reham M Balahmar
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - John M Dickenson
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Shiva D Sivasubramaniam
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK; School of Human Sciences, University of Derby, Kidleston Road, Derby DE22, 1GB, UK.
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Epigallocatechin gallate suppresses premature senescence of preadipocytes by inhibition of PI3K/Akt/mTOR pathway and induces senescent cell death by regulation of Bax/Bcl-2 pathway. Biogerontology 2018; 20:171-189. [PMID: 30456590 DOI: 10.1007/s10522-018-9785-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 11/13/2018] [Indexed: 01/05/2023]
Abstract
The phytochemical epigallocatechin gallate (EGCG) has been reported to alleviate age-associated immune disorders and organ dysfunction. However, information regarding the mechanistic role of EGCG in the suppression of cellular senescence is limited. The present study thus assessed the effects and underlying mechanisms of EGCG in the inhibition of senescence as well as its potential to selectively eliminate senescent cells (senolytics) using 3T3-L1 preadipocytes. Premature senescence was established in cells by repeated exposure of H2O2 at a sub-lethal concentration (150 μM). H2O2 treated cells showed characteristic senescence-associated features including increased cell size, senescence-associated β-galactosidase activity (SA-β-gal), development of senescence-associated secretory phenotype (SASP), activation of reactive oxygen species (ROS) and pathways, DNA damage as well as induction of cell cycle inhibitors (p53/p21WAF1/p16INK4a). In addition, a robust activation of PI3K/Akt/mTOR and AMPK pathways was also observed in H2O2 treated cells. Presence of EGCG (50 and 100 μM) showed significant downregulation of PI3K/Akt/mTOR and AMPK signaling along with the suppression of ROS, iNOS, Cox-2, NF-κB, SASP and p53 mediated cell cycle inhibition in preadipocytes. In addition, EGCG treatment also suppressed the accumulation of anti-apoptotic protein Bcl-2 in senescent cells thereby promoting apoptosis mediated cell death. Our results collectively show that EGCG acts as an mTOR inhibitor, SASP modulator as well as a potential senolytic agent thereby indicating its multi-faceted attributes that could be useful for developing anti-aging or age-delaying therapies.
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Liu H, Kang H, Song C, Lei Z, Li L, Guo J, Xu Y, Guan H, Fang Z, Li F. Urolithin A Inhibits the Catabolic Effect of TNFα on Nucleus Pulposus Cell and Alleviates Intervertebral Disc Degeneration in vivo. Front Pharmacol 2018; 9:1043. [PMID: 30283339 PMCID: PMC6157327 DOI: 10.3389/fphar.2018.01043] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 08/27/2018] [Indexed: 12/11/2022] Open
Abstract
Low back pain (LBP) is a common worldwide disease that causes an enormous social economic burden. Intervertebral disc degeneration (IDD) is considered as a major cause of LBP. The process of IDD is complicated and involves both inflammation and senescence. The production of pro-inflammatory cytokines, including tumor necrosis factor (TNF)α and interleukin (IL)-1β, is increased in the degenerating intervertebral disc, inducing extracellular matrix degradation. Urolithin A (UA) is a metabolite compound resulting from the degradation of ellagitannins by gut bacteria. UA has been reported to be useful for the treatment of diseases associated with inflammation, senescence, and oxidative damage. Therefore, we hypothesized that UA may be an effective treatment for IDD. This study examined the effects of UA on IDD in vitro and in vivo and explored their underlying mechanisms. Our findings indicated that UA could attenuate cellular senescence induced by hydrogen peroxide in nucleus pulposus cells. UA treatment decreased TNFα-induced matrix metalloproteinase production and the loss of collagen II. At the molecular level, UA considerably blocked the phosphorylation of the extracellular signal-regulated kinase, c-JUN N-terminal kinase, and Akt pathways. In vivo study illustrated that UA treatment could ameliorate IDD in a needle-punctured rat tail model, which was evaluated by X-ray imaging, magnetic resonance imaging, and histological analysis. Thus, the results of our study revealed that UA may be a useful therapeutic agent for the treatment of IDD.
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Affiliation(s)
- Huiyong Liu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Honglei Kang
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chao Song
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zuowei Lei
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianfeng Guo
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong Xu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hanfeng Guan
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhong Fang
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Li
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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45
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Guo Y, Chao L, Chao J. Kallistatin attenuates endothelial senescence by modulating Let-7g-mediated miR-34a-SIRT1-eNOS pathway. J Cell Mol Med 2018; 22:4387-4398. [PMID: 29992759 PMCID: PMC6111868 DOI: 10.1111/jcmm.13734] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 05/08/2018] [Indexed: 01/18/2023] Open
Abstract
Kallistatin, a plasma protein, protects against vascular and organ injury. This study is aimed to investigate the role and mechanism of kallistatin in endothelial senescence. Kallistatin inhibited H2 O2 -induced senescence in human endothelial cells, as indicated by reduced senescence-associated-β-galactosidase activity, p16INK4a and plasminogen activator inhibitor-1 expression, and elevated telomerase activity. Kallistatin blocked H2 O2 -induced superoxide formation, NADPH oxidase levels and VCAM-1, ICAM-1, IL-6 and miR-34a synthesis. Kallistatin reversed H2 O2 -mediated inhibition of endothelial nitric oxide synthase (eNOS), SIRT1, catalase and superoxide dismutase (SOD)-2 expression, and kallistatin alone stimulated the synthesis of these antioxidant enzymes. Moreover, kallistatin's anti-senescence and anti-oxidant effects were attributed to SIRT1-mediated eNOS pathway. Kallistatin, via interaction with tyrosine kinase, up-regulated Let-7g, whereas Let-7g inhibitor abolished kallistatin's effects on miR-34a and SIRT1/eNOS synthesis, leading to inhibition of senescence, oxidative stress and inflammation. Furthermore, lung endothelial cells isolated from endothelium-specific kallistatin knockout mice displayed marked reduction in mouse kallistatin levels. Kallistatin deficiency in mouse endothelial cells exacerbated senescence, oxidative stress and inflammation compared to wild-type mouse endothelial cells, and H2 O2 treatment further magnified these effects. Kallistatin deficiency caused marked reduction in Let-7g, SIRT1, eNOS, catalase and SOD-1 mRNA levels, and elevated miR-34a synthesis in mouse endothelial cells. These findings indicate that endogenous kallistatin through novel mechanisms protects against endothelial senescence by modulating Let-7g-mediated miR-34a-SIRT1-eNOS pathway.
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Affiliation(s)
- Youming Guo
- Department of Biochemistry and Molecular BiologyMedical University of South CarolinaCharlestonSCUSA
| | - Lee Chao
- Department of Biochemistry and Molecular BiologyMedical University of South CarolinaCharlestonSCUSA
| | - Julie Chao
- Department of Biochemistry and Molecular BiologyMedical University of South CarolinaCharlestonSCUSA
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46
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Carroll B, Korolchuk VI. Nutrient sensing, growth and senescence. FEBS J 2018; 285:1948-1958. [PMID: 29405586 PMCID: PMC6001427 DOI: 10.1111/febs.14400] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 01/15/2018] [Accepted: 01/30/2018] [Indexed: 12/19/2022]
Abstract
Cell growth is dictated by a wide range of mitogenic signals, the amplitude and relative contribution of which vary throughout development, differentiation and in a tissue-specific manner. The ability to sense and appropriately respond to changes in mitogens is fundamental to control cell growth, and reduced responsiveness of nutrient sensing pathways is widely associated with human disease and ageing. Cellular senescence is an important tumour suppressor mechanism that is characterised by an irreversible exit from the cell cycle in response to replicative exhaustion or excessive DNA damage. Despite the fact that senescent cells can no longer divide, they remain metabolically active and display a range of pro-growth phenotypes that are supported in part by the mTORC1-autophagy signalling axis. As our understanding of the basic mechanisms of controlling mTORC1-autophagy activity and cell growth continues to expand, we are able to explore how changes in nutrient sensing contribute to the acquisition and maintenance of cellular senescence. Furthermore, while the protective effect of senescence to limit cellular transformation is clear, more recently, the age-related accumulation of these pro-inflammatory senescent cells has been shown to contribute to a decline in organismal fitness. We will further discuss whether dysregulation of nutrient sensing pathways can be targeted to promote senescent cell death which would have important implications for healthy ageing.
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Saheera S, Potnuri AG, Nair RR. Modulation of cardiac stem cell characteristics by metoprolol in hypertensive heart disease. Hypertens Res 2018; 41:253-262. [PMID: 29449707 DOI: 10.1038/s41440-018-0015-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 06/19/2017] [Accepted: 08/04/2017] [Indexed: 11/09/2022]
Abstract
Cardiac stem cells (CSCs) play a vital role in cardiac remodeling. Uncontrolled hypertension leads to cardiac hypertrophy, followed by cardiac failure. Pathological remodeling is associated with enhanced oxidative stress. Decreased cardiac stem cell efficiency is speculated in heart diseases. Maintaining a healthy stem cell population is essential for preventing progressive cardiac remodeling. Some anti-hypertensive drugs are cardioprotective. However, the effect of these drugs on CSCs has not been investigated. Metoprolol is a cardioprotective anti-hypertensive agent. To examine whether metoprolol can prevent the deterioration of CSC efficiency, spontaneously hypertensive rats (SHRs) were treated with this drug, and the effects on stem cell function were evaluated. Six-month-old male SHRs were treated with metoprolol (50 mg × kg-1per day) for 2 months. The effectiveness of the treatment at reducing blood pressure and reducing hypertrophy was ensured, and the animals were killed. Cardiac stem cells were isolated from the atrial tissue, and the effect of metoprolol on stem cell migration, proliferation, differentiation, and survival was evaluated by comparing the treated SHRs with untreated SHRs and normotensive Wistar rats. Compared to the Wistar rats, the SHR rats presented with a decrease in stem cell migration and proliferation and an increase in intracellular oxidative stress and senescence. Treating SHRs with metoprolol increased CSC migration and proliferation potential and stemness retention. Cellular senescence and oxidative stress were reduced. The attributes of stem cells from the metoprolol-treated SHRs were comparable to those of the Wistar rats. The restoration of stem cell efficiency is expected to prevent hypertension-induced progressive cardiac remodeling.
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Affiliation(s)
- Sherin Saheera
- Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Thiruvananthapuram, Kerala, 695011, India
| | - Ajay Godwin Potnuri
- Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Thiruvananthapuram, Kerala, 695011, India
| | - Renuka R Nair
- Division of Cellular and Molecular Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Thiruvananthapuram, Kerala, 695011, India.
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Ngo K, Patil P, McGowan SJ, Niedernhofer LJ, Robbins PD, Kang J, Sowa G, Vo N. Senescent intervertebral disc cells exhibit perturbed matrix homeostasis phenotype. Mech Ageing Dev 2017; 166:16-23. [PMID: 28830687 DOI: 10.1016/j.mad.2017.08.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/07/2017] [Accepted: 08/14/2017] [Indexed: 12/19/2022]
Abstract
Aging greatly increases the risk for intervertebral disc degeneration (IDD) as a result of proteoglycan loss due to reduced synthesis and enhanced degradation of the disc matrix proteoglycan (PG). How disc matrix PG homeostasis becomes perturbed with age is not known. The goal of this study is to determine whether cellular senescence is a source of this perturbation. We demonstrated that disc cellular senescence is dramatically increased in the DNA repair-deficient Ercc1-/Δ mouse model of human progeria. In these accelerated aging mice, increased disc cellular senescence is closely associated with the rapid loss of disc PG. We also directly examine PG homeostasis in oxidative damage-induced senescent human cells using an in vitro cell culture model system. Senescence of human disc cells treated with hydrogen peroxide was confirmed by growth arrest, senescence-associated β-galactosidase activity, γH2AX foci, and acquisition of senescence-associated secretory phenotype. Senescent human disc cells also exhibited perturbed matrix PG homeostasis as evidenced by their decreased capacity to synthesize new matrix PG and enhanced degradation of aggrecan, a major matrix PG. of the disc. Our in vivo and in vitro findings altogether suggest that disc cellular senescence is an important driver of PG matrix homeostatic perturbation and PG loss.
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Affiliation(s)
- Kevin Ngo
- Department of Orthopaedic Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, USA
| | - Prashanti Patil
- Department of Orthopaedic Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, USA
| | - Sara J McGowan
- Department of Molecular Medicine and the TSRI Center on Aging, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Laura J Niedernhofer
- Department of Molecular Medicine and the TSRI Center on Aging, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Paul D Robbins
- Department of Molecular Medicine and the TSRI Center on Aging, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - James Kang
- Department of Orthopaedic Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, USA; Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Gwendolyn Sowa
- Department of Orthopaedic Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, USA; Department of Physical Medicine and Rehabilitation, University of Pittsburgh, 3471 5th Ave., Pittsburgh, PA 15213, USA
| | - Nam Vo
- Department of Orthopaedic Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, USA.
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Li S, Chen X, Lai W, Hu M, Zhong X, Tan S, Liang H. Downregulation of SMP30 in senescent human lens epithelial cells. Mol Med Rep 2017; 16:4022-4028. [PMID: 28765965 PMCID: PMC5646983 DOI: 10.3892/mmr.2017.7106] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 05/23/2017] [Indexed: 12/18/2022] Open
Abstract
Senescence marker protein 30 (SMP30) has been reported to serve antiapoptotic and antioxidant roles, as well as roles in Ca2+ regulation, and may be involved in the occurrence and development of cataract. The present study aimed to investigate the expression of SMP30 in senescent human lens epithelial cells (HLECs) and explored the relationship between SMP30 and aging. SRA01/04 cells, a HLEC line, were treated with H2O2 to mimic aging, and cell morphological changes were observed by microscopy and cell activity was examined by MTT assay, senescence-associated-β-galactosidase (SA-β-Gal) staining and cell cycle analysis. The expression of SMP30 mRNA and protein was measured by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting. Following prolonged low-dose H2O2 exposure, cells exhibited senescence-related morphological changes, reduced growth activity, increased SA-β-Gal positive staining and cell cycle arrest in the S and G2/M phases. SMP30 mRNA expression levels were significantly downregulated following exposure to 75 and 100 µM H2O2, and the protein expression levels in the same groups were decreased by >6-fold compared with the control untreated cells. However, no significant change was observed in SMP30 expression in the 25 and 50 µM H2O2 exposure groups. These results suggest that, in the early stage of senescence induced by H2O2-mediated chronic oxidative stress, there may be no significant change in SMP30 expression, but when the oxidative stress increases and senescence is aggravated, SMP30 may be significantly downregulated in the senescent HLECs. The present study indicates that SMP30 may be an important factor involved in the aging process of HLECs and the development of cataract.
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Affiliation(s)
- Shuning Li
- Department of Ophthalmology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Xi Chen
- Department of Ophthalmology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Weixia Lai
- Department of Ophthalmology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Meixia Hu
- Department of Ophthalmology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Xin Zhong
- Department of Ophthalmology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Shaojian Tan
- Department of Ophthalmology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Hao Liang
- Department of Ophthalmology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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50
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The anti-inflammatory effect of melatonin in SH-SY5Y neuroblastoma cells exposed to sublethal dose of hydrogen peroxide. Mech Ageing Dev 2017; 164:49-60. [DOI: 10.1016/j.mad.2017.04.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 01/28/2023]
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