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Wilkie SE, Marcu DE, Carter RN, Morton NM, Gonzalo S, Selman C. Hepatic hydrogen sulfide levels are reduced in mouse model of Hutchinson-Gilford progeria syndrome. Aging (Albany NY) 2023; 15:5266-5278. [PMID: 37354210 PMCID: PMC10333079 DOI: 10.18632/aging.204835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 06/09/2023] [Indexed: 06/26/2023]
Abstract
Hutchinson-Gilford progeria syndrome (HGPS) is a rare human disease characterised by accelerated biological ageing. Current treatments are limited, and most patients die before 15 years of age. Hydrogen sulfide (H2S) is an important gaseous signalling molecule that it central to multiple cellular homeostasis mechanisms. Dysregulation of tissue H2S levels is thought to contribute to an ageing phenotype in many tissues across animal models. Whether H2S is altered in HGPS is unknown. We investigated hepatic H2S production capacity and transcript, protein and enzymatic activity of proteins that regulate hepatic H2S production and disposal in a mouse model of HGPS (G609G mice, mutated Lmna gene equivalent to a causative mutation in HGPS patients). G609G mice were maintained on either regular chow (RC) or high fat diet (HFD), as HFD has been previously shown to significantly extend lifespan of G609G mice, and compared to wild type (WT) mice maintained on RC. RC fed G609G mice had significantly reduced hepatic H2S production capacity relative to WT mice, with a compensatory elevation in mRNA transcripts associated with several H2S production enzymes, including cystathionine-γ-lyase (CSE). H2S levels and CSE protein were partially rescued in HFD fed G609G mice. As current treatments for patients with HGPS have failed to confer significant improvements to symptoms or longevity, the need for novel therapeutic targets is acute and the regulation of H2S through dietary or pharmacological means may be a promising new avenue for research.
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Affiliation(s)
- Stephen E. Wilkie
- Glasgow Ageing Research Network (GARNER), School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
- Division of Molecular Metabolism, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Solna 171 65, Sweden
| | - Diana E. Marcu
- Glasgow Ageing Research Network (GARNER), School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
| | - Roderick N. Carter
- Molecular Metabolism Group, University/BHF Centre for Cardiovascular Sciences, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Nicholas M. Morton
- Molecular Metabolism Group, University/BHF Centre for Cardiovascular Sciences, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Susana Gonzalo
- Department of Biochemistry and Molecular Biology, Edward A. Doisy Research Center, Saint Louis University School of Medicine, MO 63104, USA
| | - Colin Selman
- Glasgow Ageing Research Network (GARNER), School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
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2
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Assavarittirong C, Au TY, Nguyen PV, Mostowska A. Vascular Ehlers-Danlos Syndrome: Pathological Variants, Recent Discoveries, and Theoretical Approaches. Cardiol Rev 2022; 30:308-313. [PMID: 34560710 DOI: 10.1097/crd.0000000000000419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Vascular Ehlers-Danlos syndrome (vEDS) is a rare autosomal dominant genetic disorder. It is the most fatal among all types of EDS. In addition to typical EDS characteristics, vEDS patients are at risk of blood vessel rupture due to possession of pathogenic variants of the COL3A1 gene, which encodes type III collagen. Type III collagen is a major component of humans' vascular walls. The management of this disease is possible; however, there is no cure as of present. Recently, discoveries with potential impact on the management of vEDS have been elucidated. Mice with vEDS traits treated with a beta-blocker celiprolol showed significant improvements in their thoracic aorta biomechanical strength. Moreover, it has been demonstrated that the specifically designed small interference RNAs (siRNA) can effectively silence the pathogenic variant allele. To enhance the normal allele expression, an intracellularly expressed lysyl oxidase is shown to regulate the transcription rate of the COL3A1 promoter. Similarly, an embryonic homeobox transcription factor Nanog upregulates the wild-type COL3A1 expression through activation of the transforming growth factor-beta pathway, which increases type III collagen synthesis. Despite numerous advancements, more studies are to be performed to incorporate these discoveries into clinical settings, and eventually, more personalized treatments can be created.
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Affiliation(s)
- Chanika Assavarittirong
- From the Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznan, Poland
| | - Tsz Yuen Au
- From the Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznan, Poland
| | - Phu Vinh Nguyen
- Department of Medical Biotechnology, Jagiellonian University, Kraków, Poland
| | - Adrianna Mostowska
- From the Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznan, Poland
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3
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Mosevitsky MI. Progerin and Its Role in Accelerated and Natural Aging. Mol Biol 2022. [DOI: 10.1134/s0026893322020091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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von Kleeck R, Castagnino P, Roberts E, Talwar S, Ferrari G, Assoian RK. Decreased vascular smooth muscle contractility in Hutchinson-Gilford Progeria Syndrome linked to defective smooth muscle myosin heavy chain expression. Sci Rep 2021; 11:10625. [PMID: 34012019 PMCID: PMC8134495 DOI: 10.1038/s41598-021-90119-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/06/2021] [Indexed: 01/12/2023] Open
Abstract
Children with Hutchinson-Gilford Progeria Syndrome (HGPS) suffer from multiple cardiovascular pathologies due to the expression of progerin, a mutant form of the nuclear envelope protein Lamin A. Progerin expression has a dramatic effect on arterial smooth muscle cells (SMCs) and results in decreased viability and increased arterial stiffness. However, very little is known about how progerin affects SMC contractility. Here, we studied the LaminAG609G/G609G mouse model of HGPS and found reduced arterial contractility at an early age that correlates with a decrease in smooth muscle myosin heavy chain (SM-MHC) mRNA and protein expression. Traction force microscopy on isolated SMCs from these mice revealed reduced force generation compared to wild-type controls; this effect was phenocopied by depletion of SM-MHC in WT SMCs and overcome by ectopic expression of SM-MHC in HGPS SMCs. Arterial SM-MHC levels are also reduced with age in wild-type mice and humans, suggesting a common defect in arterial contractility in HGPS and normal aging.
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Affiliation(s)
- Ryan von Kleeck
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Center for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Paola Castagnino
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Institute of Translational Medicine and Therapeutics at University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Emilia Roberts
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Institute of Translational Medicine and Therapeutics at University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Shefali Talwar
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Center for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Giovanni Ferrari
- Departments of Surgery and Biomedical Engineering, Columbia University, New York, NY, 10032, USA
| | - Richard K Assoian
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA, 19104, USA.
- Center for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA, 19104, USA.
- Institute of Translational Medicine and Therapeutics at University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Willaume S, Rass E, Fontanilla-Ramirez P, Moussa A, Wanschoor P, Bertrand P. A Link between Replicative Stress, Lamin Proteins, and Inflammation. Genes (Basel) 2021; 12:genes12040552. [PMID: 33918867 PMCID: PMC8070205 DOI: 10.3390/genes12040552] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/23/2021] [Accepted: 04/08/2021] [Indexed: 12/12/2022] Open
Abstract
Double-stranded breaks (DSB), the most toxic DNA lesions, are either a consequence of cellular metabolism, programmed as in during V(D)J recombination, or induced by anti-tumoral therapies or accidental genotoxic exposure. One origin of DSB sources is replicative stress, a major source of genome instability, especially when the integrity of the replication forks is not properly guaranteed. To complete stalled replication, restarting the fork requires complex molecular mechanisms, such as protection, remodeling, and processing. Recently, a link has been made between DNA damage accumulation and inflammation. Indeed, defects in DNA repair or in replication can lead to the release of DNA fragments in the cytosol. The recognition of this self-DNA by DNA sensors leads to the production of inflammatory factors. This beneficial response activating an innate immune response and destruction of cells bearing DNA damage may be considered as a novel part of DNA damage response. However, upon accumulation of DNA damage, a chronic inflammatory cellular microenvironment may lead to inflammatory pathologies, aging, and progression of tumor cells. Progress in understanding the molecular mechanisms of DNA damage repair, replication stress, and cytosolic DNA production would allow to propose new therapeutical strategies against cancer or inflammatory diseases associated with aging. In this review, we describe the mechanisms involved in DSB repair, the replicative stress management, and its consequences. We also focus on new emerging links between key components of the nuclear envelope, the lamins, and DNA repair, management of replicative stress, and inflammation.
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Lai W, Wong W. Progress and trends in the development of therapies for Hutchinson-Gilford progeria syndrome. Aging Cell 2020; 19:e13175. [PMID: 32596971 PMCID: PMC7370734 DOI: 10.1111/acel.13175] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/28/2020] [Accepted: 05/20/2020] [Indexed: 12/12/2022] Open
Abstract
Hutchinson-Gilford progeria syndrome (HGPS) is an autosomal-dominant genetic disease that leads to accelerated aging and often premature death caused by cardiovascular complications. Till now clinical management of HGPS has largely relied on the treatment of manifestations and on the prevention of secondary complications, cure for the disease has not yet been established. Addressing this need cannot only benefit progeria patients but may also provide insights into intervention design for combating physiological aging. By using the systematic review approach, this article revisits the overall progress in the development of strategies for HGPS treatment over the last ten years, from 2010 to 2019. In total, 1,906 articles have been retrieved, of which 56 studies have been included for further analysis. Based on the articles analyzed, the trends in the use of different HGPS models, along with the prevalence, efficiency, and limitations of different reported treatment strategies, have been examined. Emerging strategies for preclinical studies, and possible targets for intervention development, have also been presented as avenues for future research.
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Affiliation(s)
- Wing‐Fu Lai
- School of Life and Health Sciences The Chinese University of Hong Kong (Shenzhen) Shenzhen China
- Department of Applied Biology and Chemical Technology Hong Kong Polytechnic University Hong Kong Special Administrative Region China
| | - Wing‐Tak Wong
- Department of Applied Biology and Chemical Technology Hong Kong Polytechnic University Hong Kong Special Administrative Region China
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Yu J, Sun H, Shang F, Wu H, Shi H, Ren L, He Y, Zhang M, Peng H. Association Between Glucose Metabolism And Vascular Aging In Chinese Adults: A Cross-Sectional Analysis In The Tianning Cohort Study. Clin Interv Aging 2019; 14:1937-1946. [PMID: 31806949 PMCID: PMC6842737 DOI: 10.2147/cia.s223690] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/28/2019] [Indexed: 12/31/2022] Open
Abstract
Aim Fasting glucose has been associated with vascular aging, but the association between HbA1c and vascular aging has been limitedly studied in Chinese and other ethnic populations. We aimed to examine this association in a large sample of Chinese adults. Methods In the Tianning Cohort (N=5142), fasting glucose, HbA1c, carotid-femoral pulse wave velocity (cfPWV), and pulse pressure (PP) were measured. Vascular aging was defined as having the highest quartile level of cfPWV or PP. We applied quantile regression models to examine the association between glucose metabolism and vascular aging. Results The median cfPWV was significantly increased as increasing quintiles of fasting glucose (β=0.14, P<0.001) and HbA1c (β=0.07, P=0.0056), respectively. Per 1-mmol/L increment of fasting glucose was significantly associated with a higher risk of having vascular aging defined by cfPWV (OR=1.05, P=0.022), PP (OR=1.06, P=0.048), or either (OR=1.08, P=0.002). Similarly, per 1% increment of HbA1c was significantly associated with a higher risk of having vascular aging defined by cfPWV (OR=1.06, P=0.044), PP (OR=1.10, P=0.012), or either (OR=1.12, P=0.042). Conclusion Glucose metabolism was significantly and positively associated with vascular aging in Chinese adults, but the causality is uncertain.
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Affiliation(s)
- Jia Yu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, People's Republic of China
| | - Hongyan Sun
- Center for Disease Prevention and Control of Tianning District, Changzhou, People's Republic of China
| | - Fei Shang
- Center for Disease Prevention and Control of Tianning District, Changzhou, People's Republic of China
| | - Haishu Wu
- Center for Disease Prevention and Control of Tianning District, Changzhou, People's Republic of China
| | - Hongfei Shi
- Center for Disease Prevention and Control of Tianning District, Changzhou, People's Republic of China
| | - Liyun Ren
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, People's Republic of China
| | - Yan He
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, People's Republic of China
| | - Mingzhi Zhang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, People's Republic of China
| | - Hao Peng
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, People's Republic of China
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8
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Rong N, Mistriotis P, Wang X, Tseropoulos G, Rajabian N, Zhang Y, Wang J, Liu S, Andreadis ST. Restoring extracellular matrix synthesis in senescent stem cells. FASEB J 2019; 33:10954-10965. [PMID: 31287964 PMCID: PMC6766659 DOI: 10.1096/fj.201900377r] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 06/10/2019] [Indexed: 01/13/2023]
Abstract
Collagen type III (COL3) is one of the 3 major collagens in the body, and loss of expression or mutations in the COL3 gene have been associated with the onset of vascular diseases such the Ehlers-Danlos syndrome. Previous work reported a significant reduction of COL3 in tissues such as skin and vessels with aging. In agreement, we found that COL3 was significantly reduced in senescent human mesenchymal stem cells and myofibroblasts derived from patients with Hutchinson-Gilford progeria syndrome, a premature aging syndrome. Most notably, we discovered that ectopic expression of the embryonic transcription factor Nanog homeobox (NANOG) restored COL3 expression by restoring the activity of the TGF-β pathway that was impaired in senescent cells. RNA sequencing analysis showed that genes associated with the activation of the TGF-β pathway were up-regulated, whereas negative regulators of the pathway were down-regulated upon NANOG expression. Chromatin immunoprecipitation sequencing and immunoprecipitation experiments revealed that NANOG bound to the mothers against decapentaplegic (SMAD)2 and SMAD3 promoters, in agreement with increased expression and phosphorylation levels of both proteins. Using chemical inhibition, short hairpin RNA knockdown, and gain of function approaches, we established that both SMAD2 and SMAD3 were necessary to mediate the effects of NANOG, but SMAD3 overexpression was also sufficient for COL3 production. In summary, NANOG restored production of COL3, which was impaired by cellular aging, suggesting novel strategies to restore the impaired extracellular matrix production and biomechanical function of aged tissues, with potential implications for regenerative medicine and anti-aging treatments.-Rong, N., Mistriotis, P., Wang, X., Tseropoulos, G., Rajabian, N., Zhang, Y., Wang, J., Liu, S., Andreadis, S. T. Restoring extracellular matrix synthesis in senescent stem cells.
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Affiliation(s)
- Na Rong
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York, USA
| | - Panagiotis Mistriotis
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York, USA
| | - Xiaoyan Wang
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York, USA
| | - Georgios Tseropoulos
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York, USA
| | - Nika Rajabian
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York, USA
| | - Yali Zhang
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Jianmin Wang
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Song Liu
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Stelios T. Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York, USA
- Department of Biomedical Engineering, University at Buffalo, Buffalo, New York, USA
- Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York, USA
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9
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Ji JY. Endothelial Nuclear Lamina in Mechanotransduction Under Shear Stress. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1097:83-104. [PMID: 30315541 DOI: 10.1007/978-3-319-96445-4_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Endothelial cells that line the lumen of blood vessels are at the interface between hemodynamic forces and vascular wall biology. Endothelial cells transduce mechanical and biological signals from blood flow into intracellular signaling cascades through a process called mechanotransduction. Mechanotransduction is an important part of normal cell functions, as well as endothelial dysfunction which leads to inflammation and pathological conditions. For example, atherosclerosis preferentially develops in regions of disturbed fluid flow and low shear stress. The nuclear lamina, which sits underneath the nuclear envelope, serves to maintain the nuclear structure while acting as a scaffold for heterochromatin and many transcriptional proteins. Defects in lamina and its associated proteins cause a variety of human diseases including accelerated aging diseases such as Hutchinson-Gilford Progeria syndrome. The role of nuclear lamina in endothelial mechanotransduction, specifically how nuclear mechanics impact gene regulation under shear stress, is not fully understood. In one study, lamin A/C was silenced in bovine aortic endothelial cells to determine its role in both glucocorticoid receptor (GR) nuclear translocation and glucocorticoid response element (GRE) transcriptional activation in response to its natural ligand dexamethasone as well as fluid shear stress. Results suggest that absence of lamin A/C does not hinder passage of GR into the nucleus but nuclear lamina is important to properly regulate GRE transcription. Ongoing research continues to investigate how nuclear lamins contribute to endothelial mechanotransduction and to better understand the role of Lamin A in vascular aging and in the progression of cardiovascular diseases.
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Affiliation(s)
- Julie Y Ji
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN, USA.
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10
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van der Feen DE, Berger RMF, Bartelds B. Converging Paths of Pulmonary Arterial Hypertension and Cellular Senescence. Am J Respir Cell Mol Biol 2019; 61:11-20. [DOI: 10.1165/rcmb.2018-0329tr] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Diederik E. van der Feen
- Center for Congenital Heart Diseases, Department of Paediatric Cardiology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Rolf M. F. Berger
- Center for Congenital Heart Diseases, Department of Paediatric Cardiology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Beatrijs Bartelds
- Center for Congenital Heart Diseases, Department of Paediatric Cardiology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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11
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Shen Y, Kubben N, Candia J, Morozov AV, Misteli T, Losert W. RefCell: multi-dimensional analysis of image-based high-throughput screens based on 'typical cells'. BMC Bioinformatics 2018; 19:427. [PMID: 30445906 PMCID: PMC6240236 DOI: 10.1186/s12859-018-2454-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 10/31/2018] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Image-based high-throughput screening (HTS) reveals a high level of heterogeneity in single cells and multiple cellular states may be observed within a single population. Currently available high-dimensional analysis methods are successful in characterizing cellular heterogeneity, but suffer from the "curse of dimensionality" and non-standardized outputs. RESULTS Here we introduce RefCell, a multi-dimensional analysis pipeline for image-based HTS that reproducibly captures cells with typical combinations of features in reference states and uses these "typical cells" as a reference for classification and weighting of metrics. RefCell quantitatively assesses heterogeneous deviations from typical behavior for each analyzed perturbation or sample. CONCLUSIONS We apply RefCell to the analysis of data from a high-throughput imaging screen of a library of 320 ubiquitin-targeted siRNAs selected to gain insights into the mechanisms of premature aging (progeria). RefCell yields results comparable to a more complex clustering-based single-cell analysis method; both methods reveal more potential hits than a conventional analysis based on averages.
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Affiliation(s)
- Yang Shen
- Department of Physics and Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742 USA
| | - Nard Kubben
- National Cancer Institute, National Institutes of Health, Bethesda, MD 20892 USA
| | - Julián Candia
- Trans-NIH Center for Human Immunology (CHI), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892 USA
| | - Alexandre V. Morozov
- Department of Physics and Astronomy and Center for Quantitative Biology, Rutgers University, Piscataway, NJ 08854 USA
| | - Tom Misteli
- National Cancer Institute, National Institutes of Health, Bethesda, MD 20892 USA
| | - Wolfgang Losert
- Department of Physics and Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742 USA
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12
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Jiang Y, Ji JY. Understanding lamin proteins and their roles in aging and cardiovascular diseases. Life Sci 2018; 212:20-29. [DOI: 10.1016/j.lfs.2018.09.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/12/2018] [Accepted: 09/14/2018] [Indexed: 02/04/2023]
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Del Campo L, Hamczyk MR, Andrés V, Martínez-González J, Rodríguez C. Mechanisms of vascular aging: What can we learn from Hutchinson-Gilford progeria syndrome? CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2018; 30:120-132. [PMID: 29602596 DOI: 10.1016/j.arteri.2017.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 12/21/2017] [Accepted: 12/22/2017] [Indexed: 01/07/2023]
Abstract
Aging is the main risk factor for cardiovascular disease (CVD). The increased prevalence of CVD is partly due to the global increase in life expectancy. In this context, it is essential to identify the mechanisms by which aging induces CVD, with the ultimate aim of reducing its incidence. Both atherosclerosis and heart failure significantly contribute to age-associated CVD morbidity and mortality. Hutchinson-Gilford progeria syndrome (HGPS) is a rare genetic disorder caused by the synthesis of progerin, which is noted for accelerated aging and CVD. This mutant form of prelamin A induces generalised atherosclerosis, vascular calcification, and cardiac electrophysiological abnormalities, leading to premature aging and death, mainly due to myocardial infarction and stroke. This review discusses the main vascular structural and functional abnormalities during physiological and premature aging, as well as the mechanisms involved in the exacerbated CVD and accelerated aging induced by the accumulation of progerin and prelamin A. Both proteins are expressed in non-HGPS individuals, and physiological aging shares many features of progeria. Research into HGPS could therefore shed light on novel mechanisms involved in the physiological aging of the cardiovascular system.
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Affiliation(s)
- Lara Del Campo
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, España; CIBER de Enfermedades Cardiovasculares (CIBERCV), España
| | - Magda R Hamczyk
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, España; CIBER de Enfermedades Cardiovasculares (CIBERCV), España
| | - Vicente Andrés
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, España; CIBER de Enfermedades Cardiovasculares (CIBERCV), España.
| | - José Martínez-González
- CIBER de Enfermedades Cardiovasculares (CIBERCV), España; Instituto de Investigaciones Biomédicas de Barcelona (IIBB-CSIC), IIB-Sant Pau, Barcelona, España
| | - Cristina Rodríguez
- CIBER de Enfermedades Cardiovasculares (CIBERCV), España; Institut de Recerca del Hospital de la Santa Creu i Sant Pau-Programa ICCC, IIB-Sant Pau, Barcelona, España.
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Deschênes M, Chabot B. The emerging role of alternative splicing in senescence and aging. Aging Cell 2017; 16:918-933. [PMID: 28703423 PMCID: PMC5595669 DOI: 10.1111/acel.12646] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2017] [Indexed: 12/22/2022] Open
Abstract
Deregulation of precursor mRNA splicing is associated with many illnesses and has been linked to age-related chronic diseases. Here we review recent progress documenting how defects in the machinery that performs intron removal and controls splice site selection contribute to cellular senescence and organismal aging. We discuss the functional association linking p53, IGF-1, SIRT1, and ING-1 splice variants with senescence and aging, and review a selection of splicing defects occurring in accelerated aging (progeria), vascular aging, and Alzheimer's disease. Overall, it is becoming increasingly clear that changes in the activity of splicing factors and in the production of key splice variants can impact cellular senescence and the aging phenotype.
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Affiliation(s)
- Mathieu Deschênes
- Department of Microbiology and Infectious DiseasesFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQuebecJ1E 4K8Canada
| | - Benoit Chabot
- Department of Microbiology and Infectious DiseasesFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQuebecJ1E 4K8Canada
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Hamczyk MR, del Campo L, Andrés V. Aging in the Cardiovascular System: Lessons from Hutchinson-Gilford Progeria Syndrome. Annu Rev Physiol 2017; 80:27-48. [PMID: 28934587 DOI: 10.1146/annurev-physiol-021317-121454] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Aging, the main risk factor for cardiovascular disease (CVD), is becoming progressively more prevalent in our societies. A better understanding of how aging promotes CVD is therefore urgently needed to develop new strategies to reduce disease burden. Atherosclerosis and heart failure contribute significantly to age-associated CVD-related morbimortality. CVD and aging are both accelerated in patients suffering from Hutchinson-Gilford progeria syndrome (HGPS), a rare genetic disorder caused by the prelamin A mutant progerin. Progerin causes extensive atherosclerosis and cardiac electrophysiological alterations that invariably lead to premature aging and death. This review summarizes the main structural and functional alterations to the cardiovascular system during physiological and premature aging and discusses the mechanisms underlying exaggerated CVD and aging induced by prelamin A and progerin. Because both proteins are expressed in normally aging non-HGPS individuals, and most hallmarks of normal aging occur in progeria, research on HGPS can identify mechanisms underlying physiological aging.
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Affiliation(s)
- Magda R Hamczyk
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain; .,CIBER de Enfermedades Cardiovasculares (CIBER-CV), 28029 Madrid, Spain
| | - Lara del Campo
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain; .,CIBER de Enfermedades Cardiovasculares (CIBER-CV), 28029 Madrid, Spain
| | - Vicente Andrés
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain; .,CIBER de Enfermedades Cardiovasculares (CIBER-CV), 28029 Madrid, Spain
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16
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Lamins and metabolism. Clin Sci (Lond) 2017; 131:105-111. [PMID: 27974395 DOI: 10.1042/cs20160488] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 10/27/2016] [Accepted: 11/07/2016] [Indexed: 12/22/2022]
Abstract
Lamins are nuclear intermediate filaments (IFs) with important roles in most nuclear activities, including nuclear organization and cell-cycle progression. Mutations in human lamins cause over 17 different diseases, termed laminopathies. Most of these diseases are autosomal dominant and can be roughly divided into four major groups: muscle diseases, peripheral neuronal diseases, accelerated aging disorders and metabolic diseases including Dunnigan type familial partial lipodystrophy (FLPD), acquired partial lipodystrophy (APL) and autosomal dominant leucodystrophy. Mutations in lamins are also associated with the metabolic syndrome (MS). Cells derived from patients suffering from metabolic laminopathies, as well as cells derived from the corresponding animal models, show a disruption of the mechanistic target of rapamycin (mTOR) pathway, abnormal autophagy, altered proliferative rate and down-regulation of genes that regulate adipogenesis. In addition, treating Hutchinson-Gilford progeria syndrome (HGPS) cells with the mTOR inhibitor rapamycin improves their fate. In this review, we will discuss the ways by which lamin genes are involved in the regulation of cell metabolism.
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17
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Shiels PG, McGuinness D, Eriksson M, Kooman JP, Stenvinkel P. The role of epigenetics in renal ageing. Nat Rev Nephrol 2017. [PMID: 28626222 DOI: 10.1038/nrneph.2017.78] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An ability to separate natural ageing processes from processes specific to morbidities is required to understand the heterogeneity of age-related organ dysfunction. Mechanistic insight into how epigenetic factors regulate ageing throughout the life course, linked to a decline in renal function with ageing, is already proving to be of value in the analyses of clinical and epidemiological cohorts. Noncoding RNAs provide epigenetic regulatory circuits within the kidney, which reciprocally interact with DNA methylation processes, histone modification and chromatin. These interactions have been demonstrated to reflect the biological age and function of renal allografts. Epigenetic factors control gene expression and activity in response to environmental perturbations. They also have roles in highly conserved signalling pathways that modulate ageing, including the mTOR and insulin/insulin-like growth factor signalling pathways, and regulation of sirtuin activity. Nutrition, the gut microbiota, inflammation and environmental factors, including psychosocial and lifestyle stresses, provide potential mechanistic links between the epigenetic landscape of ageing and renal dysfunction. Approaches to modify the renal epigenome via nutritional intervention, targeting the methylome or targeting chromatin seem eminently feasible, although caution is merited owing to the potential for intergenerational and transgenerational effects.
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Affiliation(s)
- Paul G Shiels
- Section of Epigenetics, Institute of Cancer Sciences, Wolfson Wohl Translational Research Centre, University of Glasgow, Garscube Estate, Switchback Road, Bearsden, Glasgow G61 1QH, UK
| | - Dagmara McGuinness
- Section of Epigenetics, Institute of Cancer Sciences, Wolfson Wohl Translational Research Centre, University of Glasgow, Garscube Estate, Switchback Road, Bearsden, Glasgow G61 1QH, UK
| | - Maria Eriksson
- Department of Biosciences and Nutrition (BioNut), H2, Eriksson, Novum 141, 83 Huddinge, Sweden
| | - Jeroen P Kooman
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastrich, Netherlands
| | - Peter Stenvinkel
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska University Hospital, Huddinge, Karolinska Institutet, SE-14157 Stockholm, Sweden
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18
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Ribas J, Zhang YS, Pitrez PR, Leijten J, Miscuglio M, Rouwkema J, Dokmeci MR, Nissan X, Ferreira L, Khademhosseini A. Biomechanical Strain Exacerbates Inflammation on a Progeria-on-a-Chip Model. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:10.1002/smll.201603737. [PMID: 28211642 PMCID: PMC5545787 DOI: 10.1002/smll.201603737] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/02/2017] [Indexed: 05/22/2023]
Abstract
Organ-on-a-chip platforms seek to recapitulate the complex microenvironment of human organs using miniaturized microfluidic devices. Besides modeling healthy organs, these devices have been used to model diseases, yielding new insights into pathophysiology. Hutchinson-Gilford progeria syndrome (HGPS) is a premature aging disease showing accelerated vascular aging, leading to the death of patients due to cardiovascular diseases. HGPS targets primarily vascular cells, which reside in mechanically active tissues. Here, a progeria-on-a-chip model is developed and the effects of biomechanical strain are examined in the context of vascular aging and disease. Physiological strain induces a contractile phenotype in primary smooth muscle cells (SMCs), while a pathological strain induces a hypertensive phenotype similar to that of angiotensin II treatment. Interestingly, SMCs derived from human induced pluripotent stem cells of HGPS donors (HGPS iPS-SMCs), but not from healthy donors, show an exacerbated inflammatory response to strain. In particular, increased levels of inflammation markers as well as DNA damage are observed. Pharmacological intervention reverses the strain-induced damage by shifting gene expression profile away from inflammation. The progeria-on-a-chip is a relevant platform to study biomechanics in vascular biology, particularly in the setting of vascular disease and aging, while simultaneously facilitating the discovery of new drugs and/or therapeutic targets.
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Affiliation(s)
- João Ribas
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Doctoral Program in Experimental Biology and Biomedicine, Center for Neuroscience and Cell Biology, Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
| | - Yu Shrike Zhang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Patrícia R. Pitrez
- CNC-Centre for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal, Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
| | - Jeroen Leijten
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
| | - Mario Miscuglio
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jeroen Rouwkema
- Department of Biomechanical Engineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
| | - Mehmet Remzi Dokmeci
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Xavier Nissan
- INSERM U861, I-STEM, AFM, Institute for Stem Cell Therapy and Exploration of Monogenic Diseases, Evry Cedex 91030, France
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19
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Dorado B, Andrés V. A-type lamins and cardiovascular disease in premature aging syndromes. Curr Opin Cell Biol 2017; 46:17-25. [PMID: 28086161 DOI: 10.1016/j.ceb.2016.12.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 12/14/2016] [Accepted: 12/21/2016] [Indexed: 01/17/2023]
Abstract
Lamin A is a nuclear intermediate filament protein with important structural and regulatory roles in most differentiated mammalian cells. Excessive accumulation of its precursor prelamin A or the mutant form called 'progerin' causes premature aging syndromes. Progeroid 'laminopathies' are characterized by severe cardiovascular problems (cardiac electrical defects, vascular calcification and stiffening, atherosclerosis, myocardial infarction, and stroke) and premature death. Here, we review studies in cell and mouse models and patients that are unraveling how abnormal prelamin A and progerin accumulation accelerates cardiovascular disease and aging. This knowledge is essential for developing effective therapies to treat progeria and may help identify new mechanisms underlying normal aging.
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Affiliation(s)
- Beatriz Dorado
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), CIBER de Enfermedades Cardiovasculares, Madrid, Spain
| | - Vicente Andrés
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), CIBER de Enfermedades Cardiovasculares, Madrid, Spain.
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Abstract
Hutchinson-Gilford progeria syndrome (HGPS) is an extremely rare premature aging disease presenting many features resembling the normal aging process. HGPS patients die before the age of 20 years due to cardiovascular problems and heart failure. HGPS is linked to mutations in the LMNA gene encoding the intermediate filament protein lamin A. Lamin A is a major component of the nuclear lamina, a scaffold structure at the nuclear envelope that defines mechanochemical properties of the nucleus and is involved in chromatin organization and epigenetic regulation. Lamin A is also present in the nuclear interior where it fulfills lamina-independent functions in cell signaling and gene regulation. The most common LMNA mutation linked to HGPS leads to mis-splicing of the LMNA mRNA and produces a mutant lamin A protein called progerin that tightly associates with the inner nuclear membrane and affects the dynamic properties of lamins. Progerin expression impairs many important cellular processes providing insight into potential disease mechanisms. These include changes in mechanosignaling, altered chromatin organization and impaired genome stability, and changes in signaling pathways, leading to impaired regulation of adult stem cells, defective extracellular matrix production and premature cell senescence. In this review, we discuss these pathways and their potential contribution to the disease pathologies as well as therapeutic approaches used in preclinical and clinical tests.
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Affiliation(s)
- Sandra Vidak
- Max F. Perutz Laboratories (MFPL), Department of Medical Biochemistry, Vienna Biocenter (VBC), Medical University Vienna, Dr. Bohr-Gasse 9/3, 1030, Vienna, Austria
| | - Roland Foisner
- Max F. Perutz Laboratories (MFPL), Department of Medical Biochemistry, Vienna Biocenter (VBC), Medical University Vienna, Dr. Bohr-Gasse 9/3, 1030, Vienna, Austria.
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21
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Fulop T. Biological research into aging: from cells to clinic. Biogerontology 2016; 17:1-6. [PMID: 26758603 DOI: 10.1007/s10522-016-9633-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 01/07/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Tamas Fulop
- Division of Geriatric Medicine, Department of Medicine, Research Center on Aging, Université de Sherbrooke, Sherbrooke, QC, Canada.
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Suppression of the senescence-associated secretory phenotype (SASP) in human fibroblasts using small molecule inhibitors of p38 MAP kinase and MK2. Biogerontology 2015; 17:305-15. [PMID: 26400758 PMCID: PMC4819486 DOI: 10.1007/s10522-015-9610-z] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 09/18/2015] [Indexed: 01/10/2023]
Abstract
Senescent cells show an altered secretome profile termed the senescence-associated secretory phenotype (SASP). There is an increasing body of evidence that suggests that the accumulation of SASP-positive senescent cells in humans is partially causal in the observed shift to a low-level pro-inflammatory state in aged individuals. This in turn suggests the SASP as a possible therapeutic target to ameliorate inflammatory conditions in the elderly, and thus a better understanding of the signalling pathways underlying the SASP are required. Prior studies using the early generation p38 MAPK inhibitor SB203580 indicated that p38 signalling was required for the SASP. In this study, we extend these observations using two next-generation p38 inhibitors (UR-13756 and BIRB 796) that have markedly improved selectivity and specificity compared to SB203580, to strengthen the evidence that the SASP is p38-dependent in human fibroblasts. BIRB 796 has an efficacy and toxicity profile that has allowed it to reach Phase III clinical trials, suggesting its possible use to suppress the SASP in vivo. We also demonstrate for the first time a requirement for signalling through the p38 downstream MK2 kinase in the regulation of the SASP using two MK2 inhibitors. Finally, we demonstrate that a commercially-available multiplex cytokine assay technology can be used to detect SASP components in the conditioned medium of cultured fibroblasts from both young and elderly donors. This assay is a high-throughput, multiplex microtitre-based assay system that is highly sensitive, with very low sample requirements, allowing it to be used for low-volume human biological fluids. Our initial studies using existing multiplex plates form the basis for a “SASP signature” assay that could be used as a high-throughput system in a clinical study setting. Our findings therefore provide important steps towards the study of, and intervention in, the SASP in human ageing and age-related disease.
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