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Pattoo TS, Kim SA, Khanday FA. BAG3 Mediated Down-regulation in Expression of p66shc has Ramifications on Cellular Proliferation, Apoptosis and Metastasis. Cell Biochem Biophys 2024:10.1007/s12013-024-01460-0. [PMID: 39127862 DOI: 10.1007/s12013-024-01460-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2024] [Indexed: 08/12/2024]
Abstract
Redundancy of cancer cells towards ROS-mediated apoptosis despite expressing proline-rich p66shc abundantly needs to be investigated properly. P66shc, an adapter protein, is indispensable both for initiating ROS-mediated apoptosis and subsequent ROS generation through Rac-1 activation. P66shc gets phosphorylated at Ser-36 that triggers its translocation to the mitochondria and subsequent release of Cytochrome c in response to oxidative stress. It also aids in Rac-1 dependent NADPH oxidase activation, leading to the generation of cytosolic ROS that can perform diverse functions depending on its concentration. This study has identified the multi-faceted anti-apoptotic protein BAG3 as an interacting partner of p66shc. BAG3 utilizes its WW domain to bind to the proline-rich motifs of p66shc. BAG3, through its WW domain, antagonizes p66shc mediated apoptosis, by inhibiting both the expression and phosphorylation of p66shc under normal and oxidative stress conditions. This results in significant protection against ROS-mediated apoptosis. BAG3-mediated reduction in p66shc expression increases cell proliferation and metastasis. The increase in cell proliferation is attributed to the impact of BAG3 on Rac-1 activation and ROS production under normal conditions. This study has unraveled an interactor of p66shc that enhances pro-survival role while simultaneously suppressing its apoptotic role.
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Affiliation(s)
| | - Soo-A Kim
- Department of Biochemistry, Dongguk University College of Oriental Medicine, Gyeongju, Republic of Korea
| | - Firdous A Khanday
- Department of Biotechnology, University of Kashmir, Srinagar, Jammu & Kashmir, India.
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2
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Wu S, Wu Y, Chen J, Zhuang P, Zhang Y, Jiao J. Lifelong docosahexaenoic acid intervention ameliorates aging in the telomere-DNA-mitochondria axis in telomerase-deficient mice. J Nutr Biochem 2023; 112:109202. [PMID: 36347449 DOI: 10.1016/j.jnutbio.2022.109202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 07/03/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022]
Abstract
The health benefits of n-3 polyunsaturated fatty acids (PUFAs) in multiple age-related diseases are associated with telomere length. Telomerase is intimately related to inflammation and oxidative stress, but whether the underlying function of n-3 PUFAs on telomere maintenance is based on telomerase activation or related mechanisms remains unclear. Herein, we utilized late-generation (G4) telomerase-deficient (Terc-/-) mice to perform a lifelong docosahexaenoic acid (DHA) intervention to determine the potential of DHA in telomere maintenance and health promotion. Unfortunately, DHA failed to prolong mouse longevity in either intrinsic or premature aging. However, intriguingly, lifelong dietary DHA intervention slowed the aging phenotypes and profoundly attenuated telomere attrition in blood leukocytes and multiple tissues, consistent with decreased β-galactosidase activity and other senescence hallmarks with no observed sex differences. Notably, DHA intervention alleviated telomere attrition-induced γ-H2AX accumulation dependent on poly (ADP-ribose) polymerase 1 (PARP1) recruitment, and further regulated mitochondrial dysfunction critically involved in the DNA damage response. Together with the improvement of mitochondria function, the blocked reactive oxygen species (ROS) accumulation and suppression of the nuclear factor-κB (NF-κB)/nucleotide-binding domain-like receptor protein 3 (NLRP3)/caspase-1 pathways partially indicated anti-oxidative and anti-inflammatory effects of DHA. These data revealed a regulatory paradigm involving DHA in the telomere-DNA-mitochondria feedback loop mediated by DNA damage response and inflammation in alleviating senescence, which may hold potential as a translatable intervention in telomere-related diseases during aging.
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Affiliation(s)
- Shanyun Wu
- Department of Endocrinology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P R China; National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P R China
| | - Yuqi Wu
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P R China
| | - Jingnan Chen
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P R China
| | - Pan Zhuang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P R China
| | - Yu Zhang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P R China
| | - Jingjing Jiao
- Department of Endocrinology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P R China; Department of Nutrition, School of Public Health, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P R China.
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3
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Sepe S, Rossiello F, Cancila V, Iannelli F, Matti V, Cicio G, Cabrini M, Marinelli E, Alabi BR, di Lillo A, Di Napoli A, Shay JW, Tripodo C, d’Adda di Fagagna F. DNA damage response at telomeres boosts the transcription of SARS-CoV-2 receptor ACE2 during aging. EMBO Rep 2022; 23:e53658. [PMID: 34854526 PMCID: PMC8811650 DOI: 10.15252/embr.202153658] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 01/08/2023] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes the coronavirus disease 2019 (COVID-19), known to be more common in the elderly, who also show more severe symptoms and are at higher risk of hospitalization and death. Here, we show that the expression of the angiotensin converting enzyme 2 (ACE2), the SARS-CoV-2 cell receptor, increases during aging in mouse and human lungs. ACE2 expression increases upon telomere shortening or dysfunction in both cultured mammalian cells and in vivo in mice. This increase is controlled at the transcriptional level, and Ace2 promoter activity is DNA damage response (DDR)-dependent. Both pharmacological global DDR inhibition of ATM kinase activity and selective telomeric DDR inhibition by the use of antisense oligonucleotides prevent Ace2 upregulation following telomere damage in cultured cells and in mice. We propose that during aging telomere dysfunction due to telomeric shortening or damage triggers DDR activation and this causes the upregulation of ACE2, the SARS-CoV-2 cell receptor, thus contributing to make the elderly more susceptible to the infection.
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Affiliation(s)
- Sara Sepe
- IFOM Foundation‐FIRC Institute of Molecular Oncology FoundationMilanItaly
| | | | - Valeria Cancila
- Tumor Immunology UnitDepartment of Health SciencesUniversity of PalermoPalermoItaly
| | - Fabio Iannelli
- IFOM Foundation‐FIRC Institute of Molecular Oncology FoundationMilanItaly
| | - Valentina Matti
- IFOM Foundation‐FIRC Institute of Molecular Oncology FoundationMilanItaly
| | - Giada Cicio
- IFOM Foundation‐FIRC Institute of Molecular Oncology FoundationMilanItaly
- Tumor Immunology UnitDepartment of Health SciencesUniversity of PalermoPalermoItaly
| | - Matteo Cabrini
- IFOM Foundation‐FIRC Institute of Molecular Oncology FoundationMilanItaly
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche (IGM‐CNR)PaviaItaly
| | - Eugenia Marinelli
- IFOM Foundation‐FIRC Institute of Molecular Oncology FoundationMilanItaly
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche (IGM‐CNR)PaviaItaly
| | - Busola R Alabi
- Department of Cell BiologyUniversity of Texas Southwestern Medical CenterDallasTXUSA
| | - Alessia di Lillo
- IFOM Foundation‐FIRC Institute of Molecular Oncology FoundationMilanItaly
| | - Arianna Di Napoli
- Department of Clinical and Molecular MedicinePathology UnitSant'Andrea HospitalSapienza UniversityRomeItaly
| | - Jerry W Shay
- Department of Cell BiologyUniversity of Texas Southwestern Medical CenterDallasTXUSA
| | - Claudio Tripodo
- Tumor Immunology UnitDepartment of Health SciencesUniversity of PalermoPalermoItaly
| | - Fabrizio d’Adda di Fagagna
- IFOM Foundation‐FIRC Institute of Molecular Oncology FoundationMilanItaly
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche (IGM‐CNR)PaviaItaly
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4
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Mir HA, Ali R, Mushtaq U, Khanday FA. Structure-functional implications of longevity protein p66Shc in health and disease. Ageing Res Rev 2020; 63:101139. [PMID: 32795504 DOI: 10.1016/j.arr.2020.101139] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/17/2020] [Accepted: 08/06/2020] [Indexed: 12/15/2022]
Abstract
ShcA (Src homologous- collagen homologue), family of adapter proteins, consists of three isoforms which integrate and transduce external stimuli to different signaling networks. ShcA family consists of p46Shc, p52Shc and p66Shc isoforms, characterized by having multiple protein-lipid and protein-protein interaction domains implying their functional diversity. Among the three isoforms p66Shc is structurally different containing an additional CH2 domain which attributes to its dual functionality in cell growth, mediating both cell proliferation and apoptosis. Besides, p66Shc is also involved in different biological processes including reactive oxygen species (ROS) production, cell migration, ageing, cytoskeletal reorganization and cell adhesion. Moreover, the interplay between p66Shc and ROS is implicated in the pathology of various dreadful diseases. Accordingly, here we discuss the recent structural aspects of all ShcA adaptor proteins but are highlighting the case of p66Shc as model isoform. Furthermore, this review insights the role of p66Shc in progression of chronic age-related diseases like neuro diseases, metabolic disorders (non-alcoholic fatty liver, obesity, diabetes, cardiovascular diseases, vascular endothelial dysfunction) and cancer in relation to ROS. We finally conclude that p66Shc might act as a valuable biomarker for the prognosis of these diseases and could be used as a potential therapeutic target.
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Dejene EA, Li Y, Showkatian Z, Ling H, Seto E. Regulation of poly(a)-specific ribonuclease activity by reversible lysine acetylation. J Biol Chem 2020; 295:10255-10270. [PMID: 32457045 DOI: 10.1074/jbc.ra120.012552] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 05/20/2020] [Indexed: 12/26/2022] Open
Abstract
Poly(A)-specific ribonuclease (PARN) is a 3'-exoribonuclease that plays an important role in regulating the stability and maturation of RNAs. Recently, PARN has been found to regulate the maturation of the human telomerase RNA component (hTR), a noncoding RNA required for telomere elongation. Specifically, PARN cleaves the 3'-end of immature, polyadenylated hTR to form the mature, nonpolyadenylated template. Despite PARN's critical role in mediating telomere maintenance, little is known about how PARN's function is regulated by post-translational modifications. In this study, using shRNA- and CRISPR/Cas9-mediated gene silencing and knockout approaches, along with 3'-exoribonuclease activity assays and additional biochemical methods, we examined whether PARN is post-translationally modified by acetylation and what effect acetylation has on PARN's activity. We found PARN is primarily acetylated by the acetyltransferase p300 at Lys-566 and deacetylated by sirtuin1 (SIRT1). We also revealed how acetylation of PARN can decrease its enzymatic activity both in vitro, using a synthetic RNA probe, and in vivo, by quantifying endogenous levels of adenylated hTR. Furthermore, we also found that SIRT1 can regulate levels of adenylated hTR through PARN. The findings of our study uncover a mechanism by which PARN acetylation and deacetylation regulate its enzymatic activity as well as levels of mature hTR. Thus, PARN's acetylation status may play a role in regulating telomere length.
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Affiliation(s)
- Eden A Dejene
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA.,George Washington University Cancer Center, Washington, D.C., USA
| | - Yixuan Li
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA.,George Washington University Cancer Center, Washington, D.C., USA
| | - Zahra Showkatian
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA.,George Washington University Cancer Center, Washington, D.C., USA
| | - Hongbo Ling
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA.,George Washington University Cancer Center, Washington, D.C., USA
| | - Edward Seto
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA .,George Washington University Cancer Center, Washington, D.C., USA
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6
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Modulation of Obesity and Insulin Resistance by the Redox Enzyme and Adaptor Protein p66 Shc. Int J Mol Sci 2019; 20:ijms20040985. [PMID: 30813483 PMCID: PMC6412263 DOI: 10.3390/ijms20040985] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/15/2019] [Accepted: 02/21/2019] [Indexed: 12/27/2022] Open
Abstract
Initially reported as a longevity-related protein, the 66 kDa isoform of the mammalian Shc1 locus has been implicated in several metabolic pathways, being able to act both as an adaptor protein and as a redox enzyme capable of generating reactive oxygen species (ROS) when it localizes to the mitochondrion. Ablation of p66Shc has been shown to be protective against obesity and the insurgence of insulin resistance, but not all the studies available in the literature agree on these points. This review will focus in particular on the role of p66Shc in the modulation of glucose homeostasis, obesity, body temperature, and respiration/energy expenditure. In view of the obesity and diabetes epidemic, p66Shc may represent a promising therapeutic target with enormous implications for human health.
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7
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Zhao Y, Wang Z, Feng D, Zhao H, Lin M, Hu Y, Zhang N, Lv L, Gao Z, Zhai X, Tian X, Yao J. p66Shc Contributes to Liver Fibrosis through the Regulation of Mitochondrial Reactive Oxygen Species. Theranostics 2019; 9:1510-1522. [PMID: 30867846 PMCID: PMC6401497 DOI: 10.7150/thno.29620] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 01/15/2019] [Indexed: 01/09/2023] Open
Abstract
Background: p66Shc is a redox enzyme that mediates mitochondrial reactive oxygen species (ROS) generation. p66Shc inhibition confers protection against liver injury, however, its functional contribution to liver fibrosis remains unclear. The aim of this study is to explore the involvement of p66Shc in liver fibrosis and underlying mechanism of p66Shc by focusing on mitochondrial ROS. Methods: p66Shc-silenced mice were injected with carbon tetrachloride (CCl4). Primary hepatic stellate cells (HSCs) were performed with p66Shc silencing or overexpression prior to TGF-β1 stimulation. Results: p66Shc expression was progressively elevated in mice with CCl4-induced liver fibrosis, and p66Shc silencing in vivo significantly attenuated fibrosis development, reducing liver damage, oxidative stress and HSC activation, indicated by the decreased α-SMA, CTGF and TIMP1 levels. Furthermore, in primary HSCs, p66Shc-mediated mitochondrial ROS production played a vital role in mitochondrial morphology and cellular metabolism. Knockdown of p66Shc significantly inhibited mitochondrial ROS production and NOD-like receptor protein 3 (NLRP3) inflammasome activation, which were closely associated with HSC activation, indicated by the decreased α-SMA, CTGF and TIMP1 levels. However, p66Shc overexpression exerted the opposite effects, which were suppressed by a specific mitochondrial ROS scavenger (mito-TEMPO). More importantly, p66Shc expression was significantly increased in human with liver fibrosis, accompanied by NLRP3 inflammasome activation. Conclusions: p66Shc is a key regulator of liver fibrosis by mediating mitochondrial ROS production, which triggers NLRP3 inflammasome activation.
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Ciciliot S, Albiero M, Campanaro S, Poncina N, Tedesco S, Scattolini V, Dalla Costa F, Cignarella A, Vettore M, Di Gangi IM, Bogialli S, Avogaro A, Fadini GP. Interplay between gut microbiota and p66Shc affects obesity-associated insulin resistance. FASEB J 2018; 32:4004-4015. [PMID: 29466053 DOI: 10.1096/fj.201701409r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The 66 kDa isoform of the mammalian Shc gene promotes adipogenesis, and p66Shc-/- mice accumulate less body weight than wild-type (WT) mice. As the metabolic consequences of the leaner phenotype of p66Shc-/- mice is debated, we hypothesized that gut microbiota may be involved. We confirmed that p66Shc-/- mice gained less weight than WT mice when on a high-fat diet (HFD), but they were not protected from insulin resistance and glucose intolerance. p66Shc deletion significantly modified the composition of gut microbiota and their modification after an HFD. This was associated with changes in gene expression of Il-1b and regenerating islet-derived protein 3 γ ( Reg3g) in the gut and in systemic trimethylamine N-oxide and branched chain amino acid levels, despite there being no difference in intestinal structure and permeability. Depleting gut microbiota at the end of HFD rendered both strains more glucose tolerant but improved insulin sensitivity only in p66Shc-/- mice. Microbiota-depleted WT mice cohoused with microbiota-competent p66Shc-/- mice became significantly more insulin resistant than WT mice cohoused with WT mice, despite no difference in weight gain. These findings reconcile previous inconsistent observations on the metabolic phenotype of p66Shc-/- mice and illustrate the complex microbiome-host-genotype interplay under metabolic stress.-Ciciliot, S., Albiero, M., Campanaro, S., Poncina, N., Tedesco, S., Scattolini, V., Dalla Costa, F., Cignarella, A., Vettore, M., Di Gangi, I. M., Bogialli, S., Avogaro, A., Fadini, G. P. Interplay between gut microbiota and p66Shc affects obesity-associated insulin resistance.
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Affiliation(s)
| | | | | | - Nicol Poncina
- Venetian Institute of Molecular Medicine, Padua, Italy
| | | | - Valentina Scattolini
- Venetian Institute of Molecular Medicine, Padua, Italy.,Department of Medicine, University of Padova, Padua, Italy; and
| | | | | | - Monica Vettore
- Department of Medicine, University of Padova, Padua, Italy; and
| | | | - Sara Bogialli
- Department of Chemistry, University of Padova, Padua, Italy
| | - Angelo Avogaro
- Department of Medicine, University of Padova, Padua, Italy; and
| | - Gian Paolo Fadini
- Venetian Institute of Molecular Medicine, Padua, Italy.,Department of Medicine, University of Padova, Padua, Italy; and
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Xiong Y, Yepuri G, Montani JP, Ming XF, Yang Z. Arginase-II Deficiency Extends Lifespan in Mice. Front Physiol 2017; 8:682. [PMID: 28943853 PMCID: PMC5596098 DOI: 10.3389/fphys.2017.00682] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 08/25/2017] [Indexed: 12/22/2022] Open
Abstract
The mitochondrial arginase type II (Arg-II) has been shown to interact with ribosomal protein S6 kinase 1 (S6K1) and mitochondrial p66Shc and to promote cell senescence, apoptosis and inflammation under pathological conditions. However, the impact of Arg-II on organismal lifespan is not known. In this study, we demonstrate a significant lifespan extension in mice with Arg-II gene deficiency (Arg-II−/−) as compared to wild type (WT) control animals. This effect is more pronounced in the females than in the males. The gender difference is associated with higher Arg-II expression levels in the females than in the males in skin and heart at both young and old age. Ablation of Arg-II gene significantly reduces the aging marker p16INK4a levels in these tissues of old female mice, whereas in the male mice this effect of Arg-II deficiency is weaker. In line with this observation, age-associated increases in S6K1 signaling and p66Shc levels in heart are significantly attenuated in the female Arg-II−/− mice. In the male mice, only p66Shc but not S6K1 signaling is reduced. In summary, our study demonstrates that Arg-II may play an important role in the acceleration of aging in mice. Genetic disruption of Arg-II in mouse extends lifespan predominantly in females, which relates to inhibition of S6K1, p66Shc, and p16INK4a. Thus, Arg-II may represent a promising target to decelerate aging process and extend lifespan as well as to treat age-related diseases.
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Affiliation(s)
- Yuyan Xiong
- Division of Physiology, Cardiovascular and Aging Research, Department of Medicine, University of FribourgFribourg, Switzerland
| | - Gautham Yepuri
- Division of Physiology, Cardiovascular and Aging Research, Department of Medicine, University of FribourgFribourg, Switzerland
| | - Jean-Pierre Montani
- Division of Physiology, Cardiovascular and Aging Research, Department of Medicine, University of FribourgFribourg, Switzerland.,National Center of Competence in Research "Kidney.CH"Fribourg, Switzerland
| | - Xiu-Fen Ming
- Division of Physiology, Cardiovascular and Aging Research, Department of Medicine, University of FribourgFribourg, Switzerland.,National Center of Competence in Research "Kidney.CH"Fribourg, Switzerland
| | - Zhihong Yang
- Division of Physiology, Cardiovascular and Aging Research, Department of Medicine, University of FribourgFribourg, Switzerland.,National Center of Competence in Research "Kidney.CH"Fribourg, Switzerland
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10
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Epigenetic regulation in cell senescence. J Mol Med (Berl) 2017; 95:1257-1268. [DOI: 10.1007/s00109-017-1581-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 12/26/2022]
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