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Ribeiro ASF, Zerolo BE, López-Espuela F, Sánchez R, Fernandes VS. Cardiac System during the Aging Process. Aging Dis 2023:AD.2023.0115. [PMID: 37163425 PMCID: PMC10389818 DOI: 10.14336/ad.2023.0115] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/15/2023] [Indexed: 05/12/2023] Open
Abstract
The aging process is accompanied by a continuous decline of the cardiac system, disrupting the homeostatic regulation of cells, organs, and systems. Aging increases the prevalence of cardiovascular diseases, thus heart failure and mortality. Understanding the cardiac aging process is of pivotal importance once it allows us to design strategies to prevent age-related cardiac events and increasing the quality of live in the elderly. In this review we provide an overview of the cardiac aging process focus on the following topics: cardiac structural and functional modifications; cellular mechanisms of cardiac dysfunction in the aging; genetics and epigenetics in the development of cardiac diseases; and aging heart and response to the exercise.
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Affiliation(s)
| | - Blanca Egea Zerolo
- Escuela de Enfermería y Fisioterapia San Juan de Dios. Universidad Pontificia Comillas, Madrid, Spain
| | - Fidel López-Espuela
- Metabolic Bone Diseases Research Group, Nursing and Occupational Therapy College, University of Extremadura, Caceres, Spain
| | - Raúl Sánchez
- Unidad de Cardiopatías Congénitas, Hospital Universitario La Paz, Madrid, Spain
| | - Vítor S Fernandes
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
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2
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Schumacher D, Liehn EA, Nilcham P, Mayan DC, Rattanasopa C, Anand K, Crespo-Avilan GE, Hernandez-Resendiz S, Singaraja RR, Cook SA, Hausenloy DJ. A neutralizing IL-11 antibody reduces vessel hyperplasia in a mouse carotid artery wire injury model. Sci Rep 2021; 11:20674. [PMID: 34667238 PMCID: PMC8526715 DOI: 10.1038/s41598-021-99880-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/24/2021] [Indexed: 11/10/2022] Open
Abstract
Vascular restenosis remains a major problem in patients with coronary artery disease (CAD) and peripheral artery disease (PAD). Neointimal hyperplasia, defined by post-procedure proliferation and migration of vascular smooth muscle cells (VSMCs) is a key underlying pathology. Here we investigated the role of Interleukin 11 (IL-11) in a mouse model of injury-related plaque development. Apoe-/- mice were fed a hyperlipidaemic diet and subjected to carotid wire injury of the right carotid. Mice were injected with an anti-IL11 antibody (X203), IgG control antibody or buffer. We performed ultrasound analysis to assess vessel wall thickness and blood velocity. Using histology and immunofluorescence approaches, we determined the effects of IL-11 inhibition on VSMC and macrophages phenotypes and fibrosis. Treatment of mice with carotid wire injury using X203 significantly reduced post-endothelial injury vessel wall thickness, and injury-related plaque, when compared to control. Immunofluorescence staining of the injury-related plaque showed that X203 treatment did not reduce macrophage numbers, but reduced the number of VSMCs and lowered matrix metalloproteinase 2 (MMP2) levels and collagen content in comparison to control. X203 treatment was associated with a significant increase in smooth muscle protein 22α (SM22α) positive cells in injury-related plaque compared to control, suggesting preservation of the contractile VSMC phenotype. Interestingly, X203 also reduced the collagen content of uninjured carotid arteries as compared to IgG, showing an additional effect on hyperlipidemia-induced arterial remodeling in the absence of mechanical injury. Therapeutic inhibition of IL-11 reduced vessel wall thickness, attenuated neointimal hyperplasia, and has favorable effects on vascular remodeling following wire-induced endothelial injury. This suggests IL-11 inhibition as a potential novel therapeutic approach to reduce arterial stenosis following revascularization in CAD and PAD patients.
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Affiliation(s)
- David Schumacher
- Institute of Experimental Medicine and Systems Biology, University Hospital, RWTH Aachen University, Aachen, Germany.,Department of Anesthesiology, University Hospital, RWTH Aachen University, Aachen, Germany
| | - Elisa A Liehn
- Department of Cardiology, Angiology and Intensive Medicine, University Hospital Aachen, Aachen, Germany.,Victor Babes National Institute of Pathology, Bucharest, Romania.,Department of Intensive Care and Intermediate Care, University Hospital, RWTH Aachen University, Aachen, Germany.,National Heart Research Institute Singapore, National Heart Centre, Singapore, 169609, Singapore
| | - Pakhwan Nilcham
- Department of Anesthesiology, University Hospital, RWTH Aachen University, Aachen, Germany
| | - David Castaño Mayan
- Translational Laboratories in Genetic Medicine, Agency for Science, Research and Technology, Singapore, 138648, Singapore.,Yong Loo Lin School of Medicine, National University Singapore, Singapore, 169857, Singapore.,Cardiovascular Research Institute, National University Health System, Singapore, 119228, Singapore
| | - Chutima Rattanasopa
- Translational Laboratories in Genetic Medicine, Agency for Science, Research and Technology, Singapore, 138648, Singapore
| | - Kaviya Anand
- Translational Laboratories in Genetic Medicine, Agency for Science, Research and Technology, Singapore, 138648, Singapore
| | - Gustavo E Crespo-Avilan
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 169609, Singapore.,Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857, Singapore.,Department of Biochemistry, Medical Faculty, Justus Liebig-University, Giessen, Germany
| | - Sauri Hernandez-Resendiz
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 169609, Singapore.,Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Roshni R Singaraja
- Translational Laboratories in Genetic Medicine, Agency for Science, Research and Technology, Singapore, 138648, Singapore.,Yong Loo Lin School of Medicine, National University Singapore, Singapore, 169857, Singapore.,Cardiovascular Research Institute, National University Health System, Singapore, 119228, Singapore
| | - Stuart A Cook
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 169609, Singapore.,Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857, Singapore.,MRC LMS, London, W12 0NN, UK
| | - Derek J Hausenloy
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 169609, Singapore. .,Yong Loo Lin School of Medicine, National University Singapore, Singapore, 169857, Singapore. .,Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857, Singapore. .,The Hatter Cardiovascular Institute, University College London, London, WC1E 6BT, UK. .,Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taichung, Taiwan.
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3
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Interleukin-11 is important for vascular smooth muscle phenotypic switching and aortic inflammation, fibrosis and remodeling in mouse models. Sci Rep 2020; 10:17853. [PMID: 33082445 PMCID: PMC7576123 DOI: 10.1038/s41598-020-74944-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/16/2020] [Indexed: 12/17/2022] Open
Abstract
Transforming growth factor beta-1 (TGFβ1) is a major driver of vascular smooth muscle cell (VSMC) phenotypic switching, an important pathobiology in arterial disease.
We performed RNA-sequencing of TGFβ1-stimulated human aortic or arterial VSMCs which revealed large and consistent upregulation of Interleukin 11 (IL11). IL11 has an unknown function in VSMCs, which highly express the IL11 receptor alpha, suggestive of an autocrine loop. In vitro, IL11 activated ERK signaling, but inhibited STAT3 activity, and caused VSMC phenotypic switching to a similar extent as TGFβ1 or angiotensin II (ANGII) stimulation. Genetic or therapeutic inhibition of IL11 signaling reduced TGFβ1- or ANGII-induced VSMC phenotypic switching, placing IL11 activity downstream of these factors. Aortas of mice with Myh11-driven IL11 expression were remodeled and had reduced contractile but increased matrix and inflammatory genes expression. In two models of arterial pressure loading, IL11 was upregulated in the aorta and neutralizing IL11 antibodies reduced remodeling along with matrix and pro-inflammatory gene expression. These data show that IL11 plays an important role in VSMC phenotype switching, vascular inflammation and aortic pathobiology.
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4
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Karamanos NK, Piperigkou Z, Theocharis AD, Watanabe H, Franchi M, Baud S, Brézillon S, Götte M, Passi A, Vigetti D, Ricard-Blum S, Sanderson RD, Neill T, Iozzo RV. Proteoglycan Chemical Diversity Drives Multifunctional Cell Regulation and Therapeutics. Chem Rev 2018; 118:9152-9232. [DOI: 10.1021/acs.chemrev.8b00354] [Citation(s) in RCA: 193] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nikos K. Karamanos
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras 26110, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras 26110, Greece
| | - Zoi Piperigkou
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras 26110, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras 26110, Greece
| | - Achilleas D. Theocharis
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras 26110, Greece
| | - Hideto Watanabe
- Institute for Molecular Science of Medicine, Aichi Medical University, Aichi 480-1195, Japan
| | - Marco Franchi
- Department for Life Quality Studies, University of Bologna, Rimini 47100, Italy
| | - Stéphanie Baud
- Université de Reims Champagne-Ardenne, Laboratoire SiRMa, CNRS UMR MEDyC 7369, Faculté de Médecine, 51 rue Cognacq Jay, Reims 51100, France
| | - Stéphane Brézillon
- Université de Reims Champagne-Ardenne, Laboratoire de Biochimie Médicale et Biologie Moléculaire, CNRS UMR MEDyC 7369, Faculté de Médecine, 51 rue Cognacq Jay, Reims 51100, France
| | - Martin Götte
- Department of Gynecology and Obstetrics, Münster University Hospital, Münster 48149, Germany
| | - Alberto Passi
- Department of Medicine and Surgery, University of Insubria, Varese 21100, Italy
| | - Davide Vigetti
- Department of Medicine and Surgery, University of Insubria, Varese 21100, Italy
| | - Sylvie Ricard-Blum
- University Claude Bernard Lyon 1, CNRS, UMR 5246, Institute of Molecular and Supramolecular Chemistry and Biochemistry, Villeurbanne 69622, France
| | - Ralph D. Sanderson
- Department of Pathology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Thomas Neill
- Department of Pathology, Anatomy and Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 10107, United States
| | - Renato V. Iozzo
- Department of Pathology, Anatomy and Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 10107, United States
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5
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Liu P, Su J, Song X, Wang S. miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells. Mol Med Rep 2017; 17:1041-1048. [PMID: 29115493 DOI: 10.3892/mmr.2017.7937] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 06/12/2017] [Indexed: 11/06/2022] Open
Abstract
Vascular smooth muscle cells (VSMCs) exhibit a notably increased rate of migration, which is one of the most common pathological changes in atherosclerosis. Investigations into the role of micro (mi)RNAs in the regulation of VSMC migration are beginning to emerge and additional miRNAs involved in VSMC migration modulation require identification. In the current study, VSMCs were primarily cultured from rat thoracic aortas, transfected with miR‑92a mimics and induced by hydrogen peroxide (H2O2) for 24 h. Total mRNA and protein were collected for quantitative polymerase chain reaction and western blot analysis. In addition, the sirtuin 1 (SIRT1) gene was detected by luciferase reporter assay and VSMC migration was detected by Transwell migration assay. The current results demonstrated that reduced expression of miR‑92a and overexpression of SIRT1 at the mRNA level were observed in H2O2‑induced VSMCs. Furthermore, luciferase reporter assay demonstrated that the activity of the SIRT1 3'‑untranslated region was reduced by miR‑92a mimics. The upregulation of MMP9 and the downregulation of TIMP3 in H2O2‑induced VSMCs were observed to be reversed by miR‑92a mimics in addition to SIRT1 siRNA. Finally, Transwell migration assay revealed that miR‑92a overexpression and silencing SIRT1 mitigated VSMC migration following H2O2 treatment. The present study indicated that miR‑92a prevented the migration of H2O2‑induced VSMCs by repressing the expression of SIRT1, and also provided a novel therapy to protect against the phenotypic change of VSMCs in atherosclerosis.
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Affiliation(s)
- Peng Liu
- Department of Cardiology, Shanghai East Hospital, Tongji University, Shanghai 200120, P.R. China
| | - Jianfang Su
- College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xixi Song
- Department of Orthopaedics, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710068, P.R. China
| | - Shixiao Wang
- Department of Internal Medicine, Shanghai Dermatology Hospital, Tongji University, Shanghai 200443, P.R. China
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6
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Guasti L, Squizzato A, Moretto P, Vigetti D, Ageno W, Dentali F, Maresca AM, Campiotti L, Grandi AM, Passi A. In vitro effects of Apixaban on 5 different cancer cell lines. PLoS One 2017; 12:e0185035. [PMID: 29023465 PMCID: PMC5638249 DOI: 10.1371/journal.pone.0185035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 09/05/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Cancer is associated with hypercoagulability. However, several data suggest that anticoagulant drugs may have an effect on tumor development and progression mediated by both coagulation dependent processes and non-coagulation dependent processes. Therefore, we investigated the in vitro effects of Apixaban on cell proliferation, mortality, cell migration, gene expression and matrix metalloproteinase in 5 different cancer cell lines. METHODS The following cancer cell lines, and 2 normal fibroblast cultures (lung and dermal fibroblasts), were studied: OVCAR3 (ovarian cancer), MDA MB 231 (breast cancer), CaCO-2 (colon cancer), LNCaP (prostate cancer) and U937 (histiocytic lymphoma). Proliferation and cell mortality were assessed in control cells and Apixaban treated cultures (dose from 0.1 to 5 μg/ml, 0 to 96-h). Necrosis/Apoptosis (fluorescence microscopy), cell migration (24-h after scratch test), matrix metalloproteinase (MMP) activity and mRNA expression (RT PCR) of p16, p21, p53 and HAS were also assessed. RESULTS High-dose (5 μg/ml) Apixaban incubation was associated with a significantly reduced proliferation in 3 cancer cell lines (OVCAR3, CaCO-2 and LNCaP) and with increased cancer cell mortality in all, except LNCaP, cancer lines. Apoptosis seems to account for the increased mortality. The migration capacity seems to be impaired after high-dose Apixaban incubation in OVCAR3 and CaCO-2 cells. Data on mRNA expression suggest a consistent increase in tumor suppression gene p16 in all cell lines. CONCLUSIONS Our data suggest that high-dose Apixaban may be able to interfere with cancer cell in vitro, reducing proliferation and increasing cancer cell mortality through apoptosis in several cancer cell lines.
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Affiliation(s)
- Luigina Guasti
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
- * E-mail: (AS); (LG)
| | - Alessandro Squizzato
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
- * E-mail: (AS); (LG)
| | - Paola Moretto
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Davide Vigetti
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Walter Ageno
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Francesco Dentali
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Andrea M. Maresca
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Leonardo Campiotti
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Anna M. Grandi
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Alberto Passi
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
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7
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Lu L, Guo J, Hua Y, Huang K, Magaye R, Cornell J, Kelly DJ, Reid C, Liew D, Zhou Y, Chen A, Xiao W, Fu Q, Wang BH. Cardiac fibrosis in the ageing heart: Contributors and mechanisms. Clin Exp Pharmacol Physiol 2017; 44 Suppl 1:55-63. [PMID: 28316086 DOI: 10.1111/1440-1681.12753] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 03/09/2017] [Accepted: 03/12/2017] [Indexed: 01/30/2023]
Abstract
Cardiac fibrosis refers to an excessive deposition of extracellular matrix (ECM) in cardiac tissue. Fibrotic tissue is stiffer and less compliant, resulting in subsequent cardiac dysfunction and heart failure. Cardiac fibrosis in the ageing heart may involve activation of fibrogenic signalling and inhibition of anti-fibrotic signalling, leading to an imbalance of ECM turnover. Excessive accumulation of ECM such as collagen in older patients contributes to progressive ventricular dysfunction. Overexpression of collagen is derived from various sources, including higher levels of fibrogenic growth factors, proliferation of fibroblasts and cellular transdifferentiation. These may be triggered by factors, such as oxidative stress, inflammation, hypertension, cellular senescence and cell death, contributing to age-related fibrotic cardiac remodelling. In this review, we will discuss the fibrogenic contributors in age-related cardiac fibrosis, and the potential mechanisms by which fibrogenic processes can be interrupted for therapeutic intent.
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Affiliation(s)
- Lu Lu
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jingbin Guo
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yue Hua
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Kevin Huang
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Ruth Magaye
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Jake Cornell
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Darren J Kelly
- Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Vic., Australia
| | - Christopher Reid
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,NHMRC Cardiovascular Centre of Research Excellence, School of Public Health, Curtin University, Perth, WA, Australia
| | - Danny Liew
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Yingchun Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Aihua Chen
- Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Wei Xiao
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Qiang Fu
- Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Bing Hui Wang
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
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8
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Sasaki N, Itakura Y, Toyoda M. Sialylation regulates myofibroblast differentiation of human skin fibroblasts. Stem Cell Res Ther 2017; 8:81. [PMID: 28420408 PMCID: PMC5395757 DOI: 10.1186/s13287-017-0534-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 02/26/2017] [Accepted: 03/11/2017] [Indexed: 12/21/2022] Open
Abstract
Background Fibroblasts are key players in maintaining skin homeostasis and in orchestrating physiological tissue repair and skin regeneration. Dysfunctions in fibroblasts that occur with aging and the senescent process lead to the delayed healing observed in elderly people. The molecular mechanisms leading to fibroblast dysfunction during aging and the senescent process have not yet been clarified. Previously, changes in patterns of glycosylation were observed in fibroblasts in aging and the senescent process, but the effect of these changes on the function of fibroblasts has not been well documented. Here, we investigated whether changes in glycosylation during the process to senescence may have functional effects on fibroblasts. Methods The changes in cell surface glycans on skin fibroblasts during the process to senescence were examined in early-passage (EP) and late-passage (LP) skin fibroblasts by fluorescence-activated cell sorting analysis using lectins. The contributors to the changes in cell surface glycans were examined by real-time polymerase chain reaction or Western blot analysis. The effects of changes in glycosylation on proliferation, migration, induction of cellular senescence, and myofibroblast differentiation induced by transforming growth factor (TGF)-β1 stimulation were examined in EP fibroblasts. The changes in glycosylation were performed by GalNAc-α-O-benzyl or sialidase treatment. Results A decrease in sialylation of glycoproteins and an increase in sialidase NEU1 were observed in LP fibroblasts. The reduction of sialylation did not have any effect on proliferation, migration, or induction of cellular senescence. On the other hand, myofibroblast differentiation was inhibited by the reduction of sialylation, indicating that sialylation is important for myofibroblast differentiation. The localization of CD44 in lipid rafts, which is required for myofibroblast differentiation, was inhibited by the reduction of sialylation. Furthermore, reduced myofibroblast differentiation in LP fibroblasts was restored by a sialidase inhibitor. Conclusions Desialylation of CD44 with increased sialidase during the process to senescence reduced the localization of CD44 in lipid rafts after TGF-β1 stimulation, leading to the inhibition of myofibroblast differentiation. Thus, regulation of sialylation may be an attractive strategy for the prevention and regenerative therapy of age-related skin diseases, cosmetic skin alterations, and chronic wounds caused by delayed healing in elderly people. Electronic supplementary material The online version of this article (doi:10.1186/s13287-017-0534-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Norihiko Sasaki
- Research Team for Geriatric Medicine (Vascular Medicine), Tokyo Metropolitan Institute of Gerontology, Sakaecho 35-2, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Yoko Itakura
- Research Team for Geriatric Medicine (Vascular Medicine), Tokyo Metropolitan Institute of Gerontology, Sakaecho 35-2, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Masashi Toyoda
- Research Team for Geriatric Medicine (Vascular Medicine), Tokyo Metropolitan Institute of Gerontology, Sakaecho 35-2, Itabashi-ku, Tokyo, 173-0015, Japan.
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9
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Riascos-Bernal DF, Chinnasamy P, Gross JN, Almonte V, Egaña-Gorroño L, Parikh D, Jayakumar S, Guo L, Sibinga NES. Inhibition of Smooth Muscle β-Catenin Hinders Neointima Formation After Vascular Injury. Arterioscler Thromb Vasc Biol 2017; 37:879-888. [PMID: 28302627 DOI: 10.1161/atvbaha.116.308643] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 03/01/2017] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Smooth muscle cells (SMCs) contribute to neointima formation after vascular injury. Although β-catenin expression is induced after injury, whether its function is essential in SMCs for neointimal growth is unknown. Moreover, although inhibitors of β-catenin have been developed, their effects on SMC growth have not been tested. We assessed the requirement for SMC β-catenin in short-term vascular homeostasis and in response to arterial injury and investigated the effects of β-catenin inhibitors on vascular SMC growth. APPROACH AND RESULTS We used an inducible, conditional genetic deletion of β-catenin in SMCs of adult mice. Uninjured arteries from adult mice lacking SMC β-catenin were indistinguishable from controls in terms of structure and SMC marker gene expression. After carotid artery ligation, however, vessels from mice lacking SMC β-catenin developed smaller neointimas, with lower neointimal cell proliferation and increased apoptosis. SMCs lacking β-catenin showed decreased mRNA expression of Mmp2, Mmp9, Sphk1, and S1pr1 (genes that promote neointima formation), higher levels of Jag1 and Gja1 (genes that inhibit neointima formation), decreased Mmp2 protein expression and secretion, and reduced cell invasion in vitro. Moreover, β-catenin inhibitors PKF118-310 and ICG-001 limited growth of mouse and human vascular SMCs in a dose-dependent manner. CONCLUSIONS SMC β-catenin is dispensable for maintenance of the structure and state of differentiation of uninjured adult arteries, but is required for neointima formation after vascular injury. Pharmacological β-catenin inhibitors hinder growth of human vascular SMCs. Thus, inhibiting β-catenin has potential as a therapy to limit SMC accumulation and vascular obstruction.
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Affiliation(s)
- Dario F Riascos-Bernal
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.)
| | - Prameladevi Chinnasamy
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.)
| | - Jordana N Gross
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.)
| | - Vanessa Almonte
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.)
| | - Lander Egaña-Gorroño
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.)
| | - Dippal Parikh
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.)
| | - Smitha Jayakumar
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.)
| | - Liang Guo
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.)
| | - Nicholas E S Sibinga
- From the Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), and Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY (D.F.R.-B., P.C., J.N.G., V.A., L.E.-G., D.P., S.J., N.E.S.S.); and CVPath Institute, Gaithersburg, MD (L.G.).
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10
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Polyphenols and Polypeptides in Chinese Rice Wine Inhibit Homocysteine-induced Proliferation and Migration of Vascular Smooth Muscle Cells. J Cardiovasc Pharmacol 2016; 67:482-90. [DOI: 10.1097/fjc.0000000000000370] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Regulated Hyaluronan Synthesis by Vascular Cells. Int J Cell Biol 2015; 2015:208303. [PMID: 26448750 PMCID: PMC4581571 DOI: 10.1155/2015/208303] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 01/27/2015] [Indexed: 12/31/2022] Open
Abstract
Cellular microenvironment plays a critical role in several pathologies including atherosclerosis. Hyaluronan (HA) content often reflects the progression of this disease in promoting vessel thickening and cell migration. HA synthesis is regulated by several factors, including the phosphorylation of HA synthase 2 (HAS2) and other covalent modifications including ubiquitination and O-GlcNAcylation. Substrate availability is important in HA synthesis control. Specific drugs reducing the UDP precursors are able to reduce HA synthesis whereas the hexosamine biosynthetic pathway (HBP) increases the concentration of HA precursor UDP-N-acetylglucosamine (UDP-GlcNAc) leading to an increase of HA synthesis. The flux through the HBP in the regulation of HA biosynthesis in human aortic vascular smooth muscle cells (VSMCs) was reported as a critical aspect. In fact, inhibiting O-GlcNAcylation reduced HA production whereas increased O-GlcNAcylation augmented HA secretion. Additionally, O-GlcNAcylation regulates HAS2 gene expression resulting in accumulation of its mRNA after induction of O-GlcNAcylation with glucosamine treatments. The oxidized LDLs, the most common molecules related to atherosclerosis outcome and progression, are also able to induce a strong HA synthesis when they are in contact with vascular cells. In this review, we present recent described mechanisms involved in HA synthesis regulation and their role in atherosclerosis outcome and development.
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12
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Moretto P, Karousou E, Viola M, Caon I, D'Angelo ML, De Luca G, Passi A, Vigetti D. Regulation of hyaluronan synthesis in vascular diseases and diabetes. J Diabetes Res 2015; 2015:167283. [PMID: 25834831 PMCID: PMC4365328 DOI: 10.1155/2015/167283] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 02/20/2015] [Accepted: 03/01/2015] [Indexed: 02/06/2023] Open
Abstract
Cell microenvironment has a critical role determining cell fate and modulating cell responses to injuries. Hyaluronan (HA) is a ubiquitous extracellular matrix glycosaminoglycan that can be considered a signaling molecule. In fact, interacting with several cell surface receptors can deeply shape cell behavior. In vascular biology, HA triggers smooth muscle cells (SMCs) dedifferentiation which contributes to vessel wall thickening. Furthermore, HA is able to modulate inflammation by altering the adhesive properties of endothelial cells. In hyperglycemic conditions, HA accumulates in vessels and can contribute to the diabetic complications at micro- and macrovasculature. Due to the pivotal role in favoring atherogenesis and neointima formation after injuries, HA could be a new target for cardiovascular pathologies. This review will focus on the recent findings regarding the regulation of HA synthesis in human vascular SMCs. In particular, the effects of the intracellular HA substrates availability, adenosine monophosphate-activated protein kinase (AMPK), and protein O-GlcNAcylation on the main HA synthetic enzyme (i.e., HAS2) will be discussed.
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Affiliation(s)
- Paola Moretto
- Department of Surgical and Morphological Sciences, University of Insubria, 21100 Varese, Italy
| | - Evgenia Karousou
- Department of Surgical and Morphological Sciences, University of Insubria, 21100 Varese, Italy
| | - Manuela Viola
- Department of Surgical and Morphological Sciences, University of Insubria, 21100 Varese, Italy
| | - Ilaria Caon
- Department of Surgical and Morphological Sciences, University of Insubria, 21100 Varese, Italy
| | - Maria Luisa D'Angelo
- Department of Surgical and Morphological Sciences, University of Insubria, 21100 Varese, Italy
| | - Giancarlo De Luca
- Department of Surgical and Morphological Sciences, University of Insubria, 21100 Varese, Italy
| | - Alberto Passi
- Department of Surgical and Morphological Sciences, University of Insubria, 21100 Varese, Italy
| | - Davide Vigetti
- Department of Surgical and Morphological Sciences, University of Insubria, 21100 Varese, Italy
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13
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Freise C, Querfeld U. The lignan (+)-episesamin interferes with TNF-α-induced activation of VSMC via diminished activation of NF-ĸB, ERK1/2 and AKT and decreased activity of gelatinases. Acta Physiol (Oxf) 2015; 213:642-52. [PMID: 25267105 DOI: 10.1111/apha.12400] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 09/03/2014] [Accepted: 09/24/2014] [Indexed: 12/15/2022]
Abstract
AIM Activation of vascular smooth muscle cells (VSMC), a key event in the pathogenesis of atherosclerosis, is triggered by inflammatory stimuli such as tumour necrosis factor-alpha (TNF-α) causing a mitogenic VSMC response. The polyphenol (+)-episesamin (ES) was shown to counteract TNF-α-induced effects, for example in macrophages. Aiming for novel therapeutic options, we here investigated whether ES protects VSMC from TNF-α-induced growth and migration, which both contribute to the onset and progression of atherosclerosis. METHODS Human and murine VSMC were treated with combinations of ES and TNF-α. Expressions of mRNA were analyzed by RT-PCR. Enzymatic activities and proliferation were determined by specific substrate assays. Cell signalling was analyzed by Western blot and reporter gene assays. Migration was assessed by wound healing assays. RESULTS ES at 1-10 μm reduced basal and TNF-α-induced VSMC proliferation and migration due to impaired activation of extracellular signal-regulated kinases (ERK)1/2, Akt (protein kinase B), nuclear factor-kappa B (NF-ĸB) and vascular cell adhesion molecule (VCAM)-1. This was accompanied by reduced expression and secretion of matrix metalloproteinases (MMP)-2/-9, which are known to promote VSMC migration. Specific inhibitors of Akt, NF-ĸB and MMP-2/-9 reduced TNF-α-induced VSMC proliferation, confirming ES-specific effects. Besides, ES reduced TNF-α- and H₂O₂ -induced oxidative stress and in parallel induces anti-inflammatory haem oxygenase (HO)-1 expression. CONCLUSION ES interferes with inflammation-associated VSMC activation and subsequent decreased proliferation and migration due to anti-oxidative properties and impaired activation of NF-ĸB, known contributors to atherogenesis. These results suggest ES as a complemental treatment of VSMC specific vascular diseases such as atherosclerosis.
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Affiliation(s)
- C. Freise
- Department of Pediatric Nephrology and Center for Cardiovascular Research; Charité - University Medicine; Campus Virchow Clinic; Berlin Germany
| | - U. Querfeld
- Department of Pediatric Nephrology; Charité - University Medicine; Campus Virchow Clinic; Berlin Germany
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14
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Vigetti D, Deleonibus S, Moretto P, Bowen T, Fischer JW, Grandoch M, Oberhuber A, Love DC, Hanover JA, Cinquetti R, Karousou E, Viola M, D'Angelo ML, Hascall VC, De Luca G, Passi A. Natural antisense transcript for hyaluronan synthase 2 (HAS2-AS1) induces transcription of HAS2 via protein O-GlcNAcylation. J Biol Chem 2014; 289:28816-26. [PMID: 25183006 DOI: 10.1074/jbc.m114.597401] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Changes in the microenvironment organization within vascular walls are critical events in the pathogenesis of vascular pathologies, including atherosclerosis and restenosis. Hyaluronan (HA) accumulation into artery walls supports vessel thickening and is involved in many cardiocirculatory diseases. Excessive cytosolic glucose can enter the hexosamine biosynthetic pathway, increase UDP-N-acetylglucosamine (UDP-GlcNAc) availability, and lead to modification of cytosolic proteins via O-linked attachment of the monosaccharide β-N-GlcNAc (O-GlcNAcylation) from UDP-GlcNAc by the enzyme O-GlcNAc transferase. As many cytoplasmic and nuclear proteins can be glycosylated by O-GlcNAc, we studied whether the expression of the HA synthases that synthesize HA could be controlled by O-GlcNAcylation in human aortic smooth muscle cells. Among the three HAS isoenzymes, only HAS2 mRNA increased after O-GlcNAcylation induced by glucosamine treatments or by inhibiting O-GlcNAc transferase with PUGNAC (O-(2-acetamido-2-deoxy-d-glucopyranosylidene)amino-N-phenylcarbamate). We found that the natural antisense transcript of HAS2 (HAS2-AS1) was absolutely necessary to induce the transcription of the HAS2 gene. Moreover, we found that O-GlcNAcylation modulated HAS2-AS1 promoter activation by recruiting the NF-κB subunit p65, but not the HAS2 promoter, whereas HAS2-AS1 natural antisense transcript, working in cis, regulated HAS2 transcription by altering the chromatin structure around the HAS2 proximal promoter via O-GlcNAcylation and acetylation. These results indicate that HAS2 transcription can be finely regulated not only by recruiting transcription factors to the promoter as previously described but also by modulating chromatin accessibility by epigenetic modifications.
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Affiliation(s)
- Davide Vigetti
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, Varese, Italy
| | - Sara Deleonibus
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, Varese, Italy
| | - Paola Moretto
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, Varese, Italy
| | - Timothy Bowen
- Department of Nephrology, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, United Kingdom
| | - Jens W Fischer
- Institute of Pharmacology and Clinical Pharmacology, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany
| | - Maria Grandoch
- Institute of Pharmacology and Clinical Pharmacology, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany
| | - Alexander Oberhuber
- Department of Vascular and Endovascular Surgery, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Dona C Love
- Laboratory of Cell Biochemistry and Biology, NIDDK, National Institutes of Health, Bethesda, Maryland 20892
| | - John A Hanover
- Laboratory of Cell Biochemistry and Biology, NIDDK, National Institutes of Health, Bethesda, Maryland 20892
| | - Raffaella Cinquetti
- Dipertimento di Biotecnologia e Scienze della Vita, Università degli Studi dell'Insubria, 21100 Varese, Italy, and
| | - Eugenia Karousou
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, Varese, Italy
| | - Manuela Viola
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, Varese, Italy
| | - Maria Luisa D'Angelo
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, Varese, Italy
| | - Vincent C Hascall
- Biomedical Engineering ND20, The Cleveland Clinic, Cleveland, Ohio 44195
| | - Giancarlo De Luca
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, Varese, Italy
| | - Alberto Passi
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, Varese, Italy,
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15
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Ham SA, Lee H, Hwang JS, Kang ES, Yoo T, Paek KS, Do JT, Park C, Oh JW, Kim JH, Han CW, Seo HG. Activation of Peroxisome Proliferator-Activated Receptor δ Inhibits Angiotensin II-Induced Activation of Matrix Metalloproteinase-2 in Vascular Smooth Muscle Cells. J Vasc Res 2014; 51:221-30. [DOI: 10.1159/000365250] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 06/07/2014] [Indexed: 11/19/2022] Open
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16
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Vigetti D, Karousou E, Viola M, Deleonibus S, De Luca G, Passi A. Hyaluronan: Biosynthesis and signaling. Biochim Biophys Acta Gen Subj 2014; 1840:2452-9. [DOI: 10.1016/j.bbagen.2014.02.001] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Revised: 01/30/2014] [Accepted: 02/01/2014] [Indexed: 12/28/2022]
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Vigetti D, Viola M, Karousou E, De Luca G, Passi A. Metabolic control of hyaluronan synthases. Matrix Biol 2013; 35:8-13. [PMID: 24134926 DOI: 10.1016/j.matbio.2013.10.002] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 10/07/2013] [Accepted: 10/07/2013] [Indexed: 12/16/2022]
Abstract
Hyaluronan (HA) is a glycosaminoglycan composed by repeating units of D-glucuronic acid (GlcUA) and N-acetylglucosamine (GlcNAc) that is ubiquitously present in the extracellular matrix (ECM) where it has a critical role in the physiology and pathology of several mammalian tissues. HA represents a perfect environment in which cells can migrate and proliferate. Moreover, several receptors can interact with HA at cellular level triggering multiple signal transduction responses. The control of the HA synthesis is therefore critical in ECM assembly and cell biology; in this review we address the metabolic regulation of HA synthesis. In contrast with other glycosaminoglycans, which are synthesized in the Golgi apparatus, HA is produced at the plasma membrane by HA synthases (HAS1-3), which use cytoplasmic UDP-glucuronic acid and UDP-N-acetylglucosamine as substrates. UDP-GlcUA and UDP-hexosamine availability is critical for the synthesis of GAGs, which is an energy consuming process. AMP activated protein kinase (AMPK), which is considered a sensor of the energy status of the cell and is activated by low ATP:AMP ratio, leads to the inhibition of HA secretion by HAS2 phosphorylation at threonine 110. However, the most general sensor of cellular nutritional status is the hexosamine biosynthetic pathway that brings to the formation of UDP-GlcNAc and intracellular protein glycosylation by O-linked attachment of the monosaccharide β-N-acetylglucosamine (O-GlcNAcylation) to specific aminoacid residues. Such highly dynamic and ubiquitous protein modification affects serine 221 residue of HAS2 that lead to a dramatic stabilization of the enzyme in the membranes.
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Affiliation(s)
- Davide Vigetti
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J.H. Dunant 5, 21100 Varese, Italy
| | - Manuela Viola
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J.H. Dunant 5, 21100 Varese, Italy
| | - Evgenia Karousou
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J.H. Dunant 5, 21100 Varese, Italy
| | - Giancarlo De Luca
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J.H. Dunant 5, 21100 Varese, Italy
| | - Alberto Passi
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J.H. Dunant 5, 21100 Varese, Italy.
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18
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Skin connective tissue and ageing. Best Pract Res Clin Obstet Gynaecol 2013; 27:727-40. [DOI: 10.1016/j.bpobgyn.2013.06.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 02/27/2013] [Accepted: 06/10/2013] [Indexed: 11/23/2022]
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19
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Viola M, Bartolini B, Vigetti D, Karousou E, Moretto P, Deleonibus S, Sawamura T, Wight TN, Hascall VC, De Luca G, Passi A. Oxidized low density lipoprotein (LDL) affects hyaluronan synthesis in human aortic smooth muscle cells. J Biol Chem 2013; 288:29595-603. [PMID: 23979132 DOI: 10.1074/jbc.m113.508341] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Thickening of the vessel in response to high low density lipoprotein(s) (LDL) levels is a hallmark of atherosclerosis, characterized by increased hyaluronan (HA) deposition in the neointima. Human native LDL trapped within the arterial wall undergoes modifications such as oxidation (oxLDL). The aim of our study is to elucidate the link between internalization of oxLDL and HA production in vitro, using human aortic smooth muscle cells. LDL were used at an effective protein concentration of 20-50 μg/ml, which allowed 80% cell viability. HA content in the medium of untreated cells was 28.9 ± 3.7 nmol HA-disaccharide/cell and increased after oxLDL treatment to 53.9 ± 5.6. OxLDL treatments doubled the transcripts of HA synthase HAS2 and HAS3. Accumulated HA stimulated migration of aortic smooth muscle cells and monocyte adhesiveness to extracellular matrix. The effects induced by oxLDL were inhibited by blocking LOX-1 scavenger receptor with a specific antibody (10 μg/ml). The cholesterol moiety of LDL has an important role in HA accumulation because cholesterol-free oxLDL failed to induce HA synthesis. Nevertheless, cholesterol-free oxLDL and unmodified cholesterol (20 μg/ml) induce only HAS3 transcription, whereas 22,oxysterol affects both HAS2 and HAS3. Moreover, HA deposition was associated with higher expression of endoplasmic reticulum stress markers (CHOP and GRP78). Our data suggest that HA synthesis can be induced in response to specific oxidized sterol-related species delivered through oxLDL.
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Affiliation(s)
- Manuela Viola
- From the Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
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20
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Matrix metalloproteinases: inflammatory regulators of cell behaviors in vascular formation and remodeling. Mediators Inflamm 2013; 2013:928315. [PMID: 23840100 PMCID: PMC3694547 DOI: 10.1155/2013/928315] [Citation(s) in RCA: 279] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 05/15/2013] [Indexed: 12/21/2022] Open
Abstract
Abnormal angiogenesis and vascular remodeling contribute to pathogenesis of a number of disorders such as tumor, arthritis, atherosclerosis, restenosis, hypertension, and neurodegeneration. During angiogenesis and vascular remodeling, behaviors of stem/progenitor cells, endothelial cells (ECs), and vascular smooth muscle cells (VSMCs) and its interaction with extracellular matrix (ECM) play a critical role in the processes. Matrix metalloproteinases (MMPs), well-known inflammatory mediators are a family of zinc-dependent proteolytic enzymes that degrade various components of ECM and non-ECM molecules mediating tissue remodeling in both physiological and pathological processes. MMPs including MMP-1, MMP-2, MMP-3, MMP-7, MMP-8, MMP-9, MMP-12, and MT1-MMP, are stimulated and activated by various stimuli in vascular tissues. Once activated, MMPs degrade ECM proteins or other related signal molecules to promote recruitment of stem/progenitor cells and facilitate migration and invasion of ECs and VSMCs. Moreover, vascular cell proliferation and apoptosis can also be regulated by MMPs via proteolytically cleaving and modulating bioactive molecules and relevant signaling pathways. Regarding the importance of vascular cells in abnormal angiogenesis and vascular remodeling, regulation of vascular cell behaviors through modulating expression and activation of MMPs shows therapeutic potential.
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21
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Roy S, Chakraborti T, Chowdhury A, Chakraborti S. Role of PKC-α in NF-κB-MT1-MMP-mediated activation of proMMP-2 by TNF-α in pulmonary artery smooth muscle cells. J Biochem 2012; 153:289-302. [PMID: 23266860 DOI: 10.1093/jb/mvs150] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
We sought to evaluate the mechanism(s) associated with pro matrix metalloprotease 2 (proMMP-2) activation in bovine pulmonary artery smooth muscle cells. Preincubation of cells with anti-TNFR1 antibody prevented tumour necrosis factor-α (TNF-α)-induced proMMP-2 activation and increase in membrane type 1 matrix metalloprotease (MT1-MMP) expression as well as inhibition of tissue inhibitor of metalloproteinase 2 (TIMP-2) expression, indicating the role of TNFR1 receptor during TNF-α stimulation. Anti-MT1-MMP antibody abrogated proMMP-2 activation by TNF-α-stimulated cell membrane, suggesting the involvement of MT1-MMP in proMMP-2 activation. Induction of MT1-MMP expression in response to TNF-α occurs via activation of nuclear factor (NF)-κB on inhibitory κB kinase (IKK) activation and subsequently phosphorylation/degradation of IκB-α. Inhibition of protein kinase C (PKC)-α activity by Go6976 and PKC-α siRNA prevented TNF-α-induced IKK activity, IκB-α phosphorylation/degradation and NF-κB activation. Inhibition of PKC-α activity also prevented TNF-α-induced MT1-MMP expression and proMMP-2 activation as well as down regulation of TIMP-2 expression. Inhibition of IκB-α phosphorylation by PS-1145, an IKK selective inhibitor, prevented TNF-α-induced increase in MT1-MMP expression and proMMP-2 activation, which although did not alter inhibition of TIMP-2 expression. Overall, we unravelled a hitherto unknown mechanism of the involvement of PKC-α in proMMP-2 activation and inhibition of TIMP-2 expression by NF-κB-MT1-MMP-dependent and -independent pathway, respectively, during TNF-α stimulation in pulmonary artery smooth muscle cells.
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Affiliation(s)
- Soumitra Roy
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741235, West Bengal, India
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22
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Jiang J, Huang L, Yu W, Wu X, Zhou P, Li X. Overexpression of HTRA1 leads to down-regulation of fibronectin and functional changes in RF/6A cells and HUVECs. PLoS One 2012; 7:e46115. [PMID: 23056244 PMCID: PMC3466263 DOI: 10.1371/journal.pone.0046115] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 08/28/2012] [Indexed: 11/18/2022] Open
Abstract
Multiple genetic studies have suggested that high-temperature requirement serine protease (HTRA1) is associated with polypoidal choroidal vasculopathy (PCV). To date, no functional studies have investigated the biological effect of HTRA1 on vascular endothelial cells, essential vascular components involved in polypoidal vascular abnormalities and arteriosclerosis-like changes. In vitro studies were performed to investigate the effect of HTRA1 on the regulation of fibronectin, laminin, vascular endothelial growth factor (VEGF), platelet derived growth factor receptor (PDGFR) and matrix metalloparoteinases 2 (MMP-2) and the role of HTRA1 in choroid-retina endothelial (RF/6A) and human umbilical vein endothelial (HUVEC) cells. Lentivirus-mediated overexpression of HTRA1 was used to explore effects of the protease on RF/6A and HUVEC cells in vitro. HTRA1 overexpression inhibited the proliferation, cell cycle, migration and tube formation of RF/6A and HUVEC cells, effects that might contribute to the early stage of PCV pathological lesions. Fibronectin mRNA and protein levels were significantly down-regulated following the upregulation of HTRA1, whereas the expressions of laminin, VEGF and MMP-2 were unaffected by alterations in HTRA1 expression. The decreased biological function of vascular endothelial cells and the degradation of extracellular matrix proteins, such as fibronectin, may be involved in a contributory role for HTRA1 in PCV pathogenesis.
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Affiliation(s)
- Jingjing Jiang
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Ophthalmology, China-Japan Friendship Hospital, Beijing, China
| | - Lvzhen Huang
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - Wenzhen Yu
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - Xi Wu
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - Peng Zhou
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China
| | - Xiaoxin Li
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
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23
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Vigetti D, Deleonibus S, Moretto P, Karousou E, Viola M, Bartolini B, Hascall VC, Tammi M, De Luca G, Passi A. Role of UDP-N-acetylglucosamine (GlcNAc) and O-GlcNAcylation of hyaluronan synthase 2 in the control of chondroitin sulfate and hyaluronan synthesis. J Biol Chem 2012; 287:35544-35555. [PMID: 22887999 DOI: 10.1074/jbc.m112.402347] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Hyaluronan (HA) is a glycosaminoglycan present in most tissue microenvironments that can modulate many cell behaviors, including proliferation, migration, and adhesive proprieties. In contrast with other glycosaminoglycans, which are synthesized in the Golgi, HA is synthesized at the plasma membrane by one or more of the three HA synthases (HAS1-3), which use cytoplasmic UDP-glucuronic acid and UDP-N-acetylglucosamine as substrates. Previous studies revealed the importance of UDP-sugars for regulating HA synthesis. Therefore, we analyzed the effect of UDP-GlcNAc availability and protein glycosylation with O-linked N-acetylglucosamine (O-GlcNAcylation) on HA and chondroitin sulfate synthesis in primary human aortic smooth muscle cells. Glucosamine treatment, which increases UDP-GlcNAc availability and protein O-GlcNAcylation, increased synthesis of both HA and chondroitin sulfate. However, increasing O-GlcNAcylation by stimulation with O-(2-acetamido-2-deoxy-d-glucopyranosylidene)amino-N-phenylcarbamate without a concomitant increase of UDP-GlcNAc increased only HA synthesis. We found that HAS2, the main synthase in aortic smooth muscle cells, can be O-GlcNAcylated on serine 221, which strongly increased its activity and its stability (t(½) >5 h versus ∼17 min without O-GlcNAcylation). S221A mutation prevented HAS2 O-GlcNAcylation, which maintained the rapid turnover rate even in the presence of GlcN and increased UDP-GlcNAc. These findings could explain the elevated matrix HA observed in diabetic vessels that, in turn, could mediate cell dedifferentiation processes critical in vascular pathologies.
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Affiliation(s)
- Davide Vigetti
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
| | - Sara Deleonibus
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
| | - Paola Moretto
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
| | - Eugenia Karousou
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
| | - Manuela Viola
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
| | - Barbara Bartolini
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
| | - Vincent C Hascall
- Biomedical Engineering ND20, The Cleveland Clinic, Cleveland, Ohio 44195
| | - Markku Tammi
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, 70211 Kuopio, Finland
| | - Giancarlo De Luca
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
| | - Alberto Passi
- Dipartimento di Scienze Chirurgiche e Morfologiche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy.
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Schrimpf C, Xin C, Campanholle G, Gill SE, Stallcup W, Lin SL, Davis GE, Gharib SA, Humphreys BD, Duffield JS. Pericyte TIMP3 and ADAMTS1 modulate vascular stability after kidney injury. J Am Soc Nephrol 2012; 23:868-83. [PMID: 22383695 DOI: 10.1681/asn.2011080851] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Kidney pericytes are progenitors of scar-forming interstitial myofibroblasts that appear after injury. The function of kidney pericytes as microvascular cells and how these cells detach from peritubular capillaries and migrate to the interstitial space, however, are poorly understood. Here, we used an unbiased approach to identify genes in kidney pericytes relevant to detachment and differentiation in response to injury in vivo, with a particular focus on genes regulating proteolytic activity and angiogenesis. Kidney pericytes rapidly activated expression of a disintegrin and metalloprotease with thrombospondin motifs-1 (ADAMTS1) and downregulated its inhibitor, tissue inhibitor of metalloproteinase 3 (TIMP3) in response to injury. Similarly to brain pericytes, kidney pericytes bound to and stabilized capillary tube networks in three-dimensional gels and inhibited metalloproteolytic activity and angiogenic signaling in endothelial cells. In contrast, myofibroblasts did not have these vascular stabilizing functions despite their derivation from kidney pericytes. Pericyte-derived TIMP3 stabilized and ADAMTS1 destabilized the capillary tubular networks. Furthermore, mice deficient in Timp3 had a spontaneous microvascular phenotype in the kidney resulting from overactivated pericytes and were more susceptible to injury-stimulated microvascular rarefaction with an exuberant fibrotic response. Taken together, these data support functions for kidney pericytes in microvascular stability, highlight central roles for regulators of extracellular proteolytic activity in capillary homoeostasis, and identify ADAMTS1 as a marker of activation of kidney pericytes.
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Affiliation(s)
- Claudia Schrimpf
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Vigetti D, Rizzi M, Moretto P, Deleonibus S, Dreyfuss JM, Karousou E, Viola M, Clerici M, Hascall VC, Ramoni MF, De Luca G, Passi A. Glycosaminoglycans and glucose prevent apoptosis in 4-methylumbelliferone-treated human aortic smooth muscle cells. J Biol Chem 2011; 286:34497-503. [PMID: 21768115 DOI: 10.1074/jbc.m111.266312] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Smooth muscle cells (SMCs) have a pivotal role in cardiovascular diseases and are responsible for hyaluronan (HA) deposition in thickening vessel walls. HA regulates SMC proliferation, migration, and inflammation, which accelerates neointima formation. We used the HA synthesis inhibitor 4-methylumbelliferone (4-MU) to reduce HA production in human aortic SMCs and found a significant increase of apoptotic cells. Interestingly, the exogenous addition of HA together with 4-MU reduced apoptosis. A similar anti-apoptotic effect was observed also by adding other glycosaminoglycans and glucose to 4-MU-treated cells. Furthermore, the anti-apoptotic effect of HA was mediated by Toll-like receptor 4, CD44, and PI3K but not by ERK1/2.
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Affiliation(s)
- Davide Vigetti
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, via JH Dunant 5, 21100 Varese, Italy
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26
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Vigetti D, Clerici M, Deleonibus S, Karousou E, Viola M, Moretto P, Heldin P, Hascall VC, De Luca G, Passi A. Hyaluronan synthesis is inhibited by adenosine monophosphate-activated protein kinase through the regulation of HAS2 activity in human aortic smooth muscle cells. J Biol Chem 2011; 286:7917-7924. [PMID: 21228273 DOI: 10.1074/jbc.m110.193656] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Hyaluronan (HA) is an extracellular matrix glycosaminoglycan (GAG) involved in cell motility, proliferation, tissue remodeling, development, differentiation, inflammation, tumor progression, and invasion and controls vessel thickening in cardiovascular diseases. Therefore, the control of HA synthesis could permit the fine-tuning of cell behavior, but the mechanisms that regulate HA synthesis are largely unknown. Recent studies suggest that the availability of the nucleotide-sugar precursors has a critical role. Because the formation of UDP-sugars is a highly energetically demanding process, we have analyzed whether the energy status of the cell could control GAG production. AMP-activated protein kinase (AMPK) is the main ATP/AMP sensor of mammalian cells, and we mimicked an energy stress by treating human aortic smooth muscle cells (AoSMCs) with the AMPK activators 5-aminoimidazole-4-carboxamide-1-β-D-ribofuranoside and metformin. Under these conditions, HA synthesis, but not that of the other GAGs, was greatly reduced. We confirmed the inhibitory effect of AMPK using a specific inhibitor and knock-out cell lines. We found that AMPK phosphorylated Thr-110 of human HAS2, which inhibits its enzymatic activity. In contrast, the other two HAS isoenzymes (HAS1 and HAS3) were not modified by the kinase. The reduction of HA decreased the ability of AoSMCs to proliferate, migrate, and recruit immune cells, thereby reducing the pro-atherosclerotic AoSMC phenotype. Interestingly, such effects were not recovered by treatment with exogenous HA, suggesting that AMPK can block the pro-atherosclerotic signals driven by HA by interaction with its receptors.
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Affiliation(s)
- Davide Vigetti
- From the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy
| | - Moira Clerici
- From the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy
| | - Sara Deleonibus
- From the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy
| | - Evgenia Karousou
- From the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy
| | - Manuela Viola
- From the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy
| | - Paola Moretto
- From the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy
| | - Paraskevi Heldin
- the Ludwig Institute for Cancer Research, Uppsala University Biomedical Center, SE-75124 Uppsala, Sweden, and
| | - Vincent C Hascall
- the Department of Biomedical Engineering, The Cleveland Clinic, Cleveland, Ohio 44195
| | - Giancarlo De Luca
- From the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy
| | - Alberto Passi
- From the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy,.
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Archile-Contreras AC, Mandell IB, Purslow PP. Phenotypic differences in matrix metalloproteinase 2 activity between fibroblasts from 3 bovine muscles1. J Anim Sci 2010; 88:4006-15. [DOI: 10.2527/jas.2010-3060] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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28
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Vigetti D, Genasetti A, Karousou E, Viola M, Moretto P, Clerici M, Deleonibus S, De Luca G, Hascall VC, Passi A. Proinflammatory cytokines induce hyaluronan synthesis and monocyte adhesion in human endothelial cells through hyaluronan synthase 2 (HAS2) and the nuclear factor-kappaB (NF-kappaB) pathway. J Biol Chem 2010; 285:24639-45. [PMID: 20522558 DOI: 10.1074/jbc.m110.134536] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Chronic inflammation is now accepted to have a critical role in the onset of several diseases as well as in vascular pathology, where macrophage transformation into foam cells contributes in atherosclerotic plaque formation. Endothelial cells (EC) have a critical function in recruitment of immune cells, and proinflammatory cytokines drive the specific expression of several adhesion proteins. During inflammatory responses several cells produce hyaluronan matrices that promote monocyte/macrophage adhesion through interactions with the hyaluronan receptor CD44 present on inflammatory cell surfaces. In this study, we used human umbilical chord vein endothelial cells (HUVECs) as a model to study the mechanism that regulates hyaluronan synthesis after treatment with proinflammatory cytokines. We found that interleukin 1beta and tumor necrosis factors alpha and beta, but not transforming growth factors alpha and beta, strongly induced HA synthesis by NF-kappaB pathway. This signaling pathway mediated hyaluronan synthase 2 (HAS2) mRNA expression without altering other glycosaminoglycan metabolism. Moreover, we verified that U937 monocyte adhesion on stimulated HUVECs depends strongly on hyaluronan, and transfection with short interference RNA of HAS2 abrogates hyaluronan synthesis revealing the critical role of HAS2 in this process.
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Affiliation(s)
- Davide Vigetti
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, via JH Dunant 5, 21100 Varese, Italy
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Simpson RML, Wells A, Thomas D, Stephens P, Steadman R, Phillips A. Aging fibroblasts resist phenotypic maturation because of impaired hyaluronan-dependent CD44/epidermal growth factor receptor signaling. THE AMERICAN JOURNAL OF PATHOLOGY 2010; 176:1215-28. [PMID: 20093489 DOI: 10.2353/ajpath.2010.090802] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Fibroblast differentiation into myofibroblasts is a key event during normal wound repair. We have previously demonstrated an age-related defect in this process associated with impaired synthesis of hyaluronan (HA) synthase (HAS) 2 but failed to prescribe its role in a mechanistic sense. Here we demonstrate that in addition to HAS2, there is loss of EGF receptor (EGF-R) in aged cells, and both are required for normal fibroblast functionality. Analysis of molecular events revealed that in young cells, transforming growth factor (TGF)-beta1-dependent phenotypic activation uses two distinct but cooperating pathways that involve TGF-beta receptor/Smad2 activation and EGF-mediated EGF-R/extracellular signal-regulated kinase (ERK) 1/2 signaling, and the latter is compromised with in vitro aging. Pharmacological inhibition of any of the five intermediates (TGF-beta receptor, Smad2, EGF, EGF-R, and ERK1/2) attenuated TGF-beta1 induction of alpha-smooth muscle actin. We present evidence that the HA receptor CD44 co-immunoprecipitates with EGF-R after activation by TGF-beta1. This interaction is HA-dependent because disruption of HA synthesis abrogates this association and inhibits subsequent ERK1/2 signaling. In aged fibroblasts, this association is lost with resultant suppression of ERK1/2 activation. Forced overexpression of EGF-R and HAS2 in aged cells restored TGF-beta1-mediated HA-CD44/EGF-R association and alpha-smooth muscle actin induction. Taken together, these results demonstrate that HA can serve as a signal integrator by facilitating TGF-beta1-mediated CD44-EGF-R-ERK interactions and ultimately fibroblast phenotype. We propose a model to explain this novel mechanism and the functional consequence of age-dependent dysregulation.
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Affiliation(s)
- Russell M L Simpson
- Institute of Nephrology, Department of Oral Surgery, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK
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Correlations between biochemical markers in the synovial fluid and severity of rotator cuff disease. Musculoskelet Surg 2009; 93 Suppl 1:S41-8. [PMID: 19711169 DOI: 10.1007/s12306-009-0004-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The role of biochemical factors in the onset and natural history of rotator cuff disease is not fully understood, but it is generally recognised that they could induce tendon damage in association with mechanical and vascular factors. In this study, 5 biochemical parameters were analysed (total protein concentration, matrix metalloproteinase (MMP)-2 or gelatinase A, MMP-9 or gelatinase B, type I collagen telopeptides, hyaluronic acid) in the synovial fluid (SF) aspirated from the gleno-humeral joint of 29 patients undergoing surgical therapy for rotator cuff lesions. Four different groups of patients were identified according to the severity of the lesion: partial tear of the rotator cuff, full thickness tear involving <or-1 tendon, full thickness tear involving >1 tendon and cuff tear arthropathy (CTA). The total SF protein concentration progressively increased with loss of integrity of the rotator cuff, reaching the highest levels in CTA. The absolute enzymatic activity of gelatinases was greater in full thickness tears than in partial tears, while it decreased in CTA. Conversely, the ratio between gelatinases and total protein content reached the highest level in partial tears and then progressively decreased. Collagen I telopeptides were significantly increased in full thickness tears and CTA, whereas the levels of hyaluronic acid decreased with worsening of rotator cuff disease. These findings support the hypothesis that gelatinases, which are involved in physiological tendon remodelling, intervene in the evolution of rotator cuff disease, too. Increased levels of type I collagen telopeptides give evidence that tendon tears are associated with an anatomic loss of tendon tissue and not with simple tendon retraction.
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Simpson RML, Meran S, Thomas D, Stephens P, Bowen T, Steadman R, Phillips A. Age-related changes in pericellular hyaluronan organization leads to impaired dermal fibroblast to myofibroblast differentiation. THE AMERICAN JOURNAL OF PATHOLOGY 2009; 175:1915-28. [PMID: 19808648 DOI: 10.2353/ajpath.2009.090045] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We have previously demonstrated that transforming growth factor-beta1 (TGF-beta1)-mediated fibroblast-myofibroblast differentiation is associated with accumulation of a hyaluronan (HA) pericellular coat. The current study demonstrates failure of fibroblast-myofibroblast differentiation associated with in vitro aging. This is associated with attenuation of numerous TGF-beta1-dependent responses, including HA synthesis and induction of the HA synthase enzyme HAS2 and the hyaladherin tumor necrosis factor-alpha-stimulated gene 6 (TSG-6), which led to an age-related defect in pericellular HA coat assembly. Inhibition of HAS2-dependent HA synthesis by gene silencing, removal of the HA coat by hyaluronidase digestion, or gene silencing of TSG-6 or cell surface receptor CD44 led to abrogation of TGF-beta1-dependent induction of alpha-smooth muscle actin in "young" cells. This result supports the importance of HAS2-dependent HA synthesis and the HA coat during phenotypic activation. Interleukin-1beta stimulation, however, failed to promote phenotypic conversion despite coat formation. A return to basal levels of HA synthesis in aged cells by HAS2 overexpression restored TGF-beta1-dependent induction of TSG-6 and pericellular HA coat assembly. However, this did not lead to the acquisition of a myofibroblast phenotype. Coordinated induction of HAS2 and TSG-6 facilitation of pericellular HA coat assembly is necessary for TGF-beta1-dependent activation of fibroblasts, and both components of this response are impaired with in vitro aging. In conclusion, the HA pericellular coat is integral but not sufficient to correct for the age-dependent defect in phenotypic conversion.
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Affiliation(s)
- Russell M L Simpson
- Institute of Nephrology, Cardiff Institute of Tissue Engineering and Repair, Cardiff University Heath Park, United Kingdom
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Vigetti D, Genasetti A, Karousou E, Viola M, Clerici M, Bartolini B, Moretto P, De Luca G, Hascall VC, Passi A. Modulation of hyaluronan synthase activity in cellular membrane fractions. J Biol Chem 2009; 284:30684-94. [PMID: 19737932 DOI: 10.1074/jbc.m109.040386] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Hyaluronan (HA), the only non-sulfated glycosaminoglycan, is involved in morphogenesis, wound healing, inflammation, angiogenesis, and cancer. In mammals, HA is synthesized by three homologous HA synthases, HAS1, HAS2, and HAS3, that polymerize the HA chain using UDP-glucuronic acid and UDP-N-acetylglucosamine as precursors. Since the amount of HA is critical in several pathophysiological conditions, we developed a non-radioactive assay for measuring the activity of HA synthases (HASs) in eukaryotic cells and addressed the question of HAS activity during intracellular protein trafficking. We prepared three cellular fractions: plasma membrane, cytosol (containing membrane proteins mainly from the endoplasmic reticulum and Golgi), and nuclei. After incubation with UDP-sugar precursors, newly synthesized HA was quantified by polyacrylamide gel electrophoresis of fluorophore-labeled saccharides and high performance liquid chromatography. This new method measured HAS activity not only in the plasma membrane fraction but also in the cytosolic membranes. This new technique was used to evaluate the effects of 4-methylumbeliferone, phorbol 12-myristate 13-acetate, interleukin 1beta, platelet-derived growth factor BB, and tunicamycin on HAS activities. We found that HAS activity can be modulated by post-translational modification, such as phosphorylation and N-glycosylation. Interestingly, we detected a significant increase in HAS activity in the cytosolic membrane fraction after tunicamycin treatment. Since this compound is known to induce HA cable structures, this result links HAS activity alteration with the capability of the cell to promote HA cable formation.
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Affiliation(s)
- Davide Vigetti
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, 21100 Varese, Italy
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Ito I, Fixman ED, Asai K, Yoshida M, Gounni AS, Martin JG, Hamid Q. Platelet-derived growth factor and transforming growth factor-beta modulate the expression of matrix metalloproteinases and migratory function of human airway smooth muscle cells. Clin Exp Allergy 2009; 39:1370-80. [PMID: 19522858 DOI: 10.1111/j.1365-2222.2009.03293.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinase (TIMPs) have been suggested to be involved in the pathogenesis of asthma. Their expression in airway smooth muscle (ASM) cells could be involved in collagen turnover and migration of these cells and thus may contribute to airway remodelling. OBJECTIVE To examine the effect of pro-fibrotic growth factors TGF-beta and platelet-derived growth factor (PDGF) on the expression of MMPs/TIMPs in cultured human ASM cells and to examine the role of MMP in the migration of ASM cells. METHODS ASM cells were stimulated with TGF-beta and/or PDGF. Expression and activity of MMP-1, MMP-2, MMP-3, TIMP-1 and TIMP-2 were evaluated by quantitative RT-PCR, Western blot and zymography. Modified Boyden-chamber migration assay was performed to investigate the effect of secreted MMP-3 and TIMP-1 on ASM-cell migration. RESULTS PDGF strongly up-regulated the expression of MMP-1 at mRNA and protein levels. PDGF, when combined with TGF-beta, caused synergistic up-regulation of MMP-3. TIMP-1 was additively up-regulated by TGF-beta and PDGF. These growth factors had no effect on the expression of MMP-2 and TIMP-2. U0126, an extracellular signal-regulated kinase (ERK) pathway inhibitor, inhibited the up-regulation of MMP-1 by PDGF. The synergistic/additive up-regulation of MMP-3 and TIMP-1 was inhibited by U0126 and SB431542, a Smad pathway inhibitor. Supernatant from ASM cells in which MMP-3 production was knocked down by RNA interference showed a decreased migratory effect on ASM cells, whereas supernatant from cells with suppressed TIMP-1 expression resulted in increased migration. CONCLUSION Our results suggest that PDGF with/without TGF-beta could facilitate migration of ASM cells by modification of MMP-TIMP balance through the ERK pathway.
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Affiliation(s)
- I Ito
- Meakins-Christie Laboratories, Department of Medicine, McGill University, Montreal, QC, Canada
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Mu H, Wang X, Wang H, Lin P, Yao Q, Chen C. Lactosylceramide promotes cell migration and proliferation through activation of ERK1/2 in human aortic smooth muscle cells. Am J Physiol Heart Circ Physiol 2009; 297:H400-8. [PMID: 19465542 DOI: 10.1152/ajpheart.01254.2008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Increased plasma levels of lactosylceramide (LacCer) have been associated with cardiovascular disease. However, it is largely unknown whether LacCer directly contributes to dysfunction of smooth muscle cells (SMCs), a key event in vascular lesion formation. In the present study, we determined the effects and potential mechanisms of LacCer on cell migration and proliferation in human aortic SMCs (AoSMCs). Cell migration and proliferation were determined by a modified Boyden chamber assay and nonradioactive colorimetric (MTS) assay, respectively. We found that LacCer significantly induced AoSMC migration and proliferation in a concentration- and time-dependent manner. In addition, LacCer significantly upregulated the expression of PDGFR-B, integrins (alpha(v) and beta(3)), and matrix metalloproteinases (matrix metalloproteinase-1 and -2) at both mRNA and protein levels, as determined by real-time PCR and Western blot analyses, respectively. Furthermore, LacCer increased superoxide anion production and the transient phosphorylation of ERK1/2 in AoSMCs, as determined by dihydroethidium staining and immunoassay, respectively. Accordingly, LacCer-induced cell migration and proliferation were effectively blocked by antioxidants (seleno-l-methionine and Mn tetrakis porphyrin) and by a specific ERK1/2 inhibitor. Thus, LacCer promotes cell migration and proliferation through oxidative stress and activation of ERK1/2 in AoSMCs. These findings demonstrate the functional role of LacCer in the vascular disease pathogenesis.
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Affiliation(s)
- Hong Mu
- Molecular Surgeon Research Center, Division of Vascular Surgery and Endovascular Therapy, Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
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Vigetti D, Rizzi M, Viola M, Karousou E, Genasetti A, Clerici M, Bartolini B, Hascall VC, De Luca G, Passi A. The effects of 4-methylumbelliferone on hyaluronan synthesis, MMP2 activity, proliferation, and motility of human aortic smooth muscle cells. Glycobiology 2009; 19:537-46. [DOI: 10.1093/glycob/cwp022] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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Activated Protein C Protection from Lung Inflammation in Endotoxin-Induced Injury. Exp Biol Med (Maywood) 2008; 233:1462-8. [DOI: 10.3181/0802-rm-74] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We studied the protection of recombinant human activated protein C (rhAPC) in endotoxin-induced lung inflammation and injury and whether this effect is correlated with modulation of lung matrix metalloproteinase (MMP) activity. We randomly assigned 12 Large White pigs to receive intravenous Escher-ichia coli lipopolysaccharide (LPS; 40 μ g/kg/hr), rhAPC (24 μ g/ kg/hr), or both. We monitored respiratory mechanics and function, cell counts, and cytokine concentrations in bron-choalveolar lavage fluid (BALF). Lung samples were collected for the zymography of MMP-2 and MMP-9 activities and for histology. In septic pigs, rhAPC decreased proMMP-9 release as well as MMP-9 activation, and increased proMMP-2 presence without any evident activation compared with specimens that were given LPS alone. In addition, lung injury in rhAPC-treated animals was significantly attenuated, as shown by higher respiratory compliance, delayed increase in tumor necrosis alfa and interleukin-1β as well as neutrophil recruitment in the BALF, reduced lung edema, and histologic changes. In conclusion, rhAPC is beneficial in acute lung injury, and the protection may depend, at least in part, on modulation of MMP-2/9 activity.
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Nitrotyrosine promotes human aortic smooth muscle cell migration through oxidative stress and ERK1/2 activation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2008; 1783:1576-84. [PMID: 18460343 DOI: 10.1016/j.bbamcr.2008.04.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2007] [Revised: 04/01/2008] [Accepted: 04/02/2008] [Indexed: 12/13/2022]
Abstract
Nitrotyrosine is a new biomarker of atherosclerosis and inflammation. The objective of this study was to determine the direct effects of free nitrotyrosine on human aortic smooth muscle cell (AoSMC) migration and molecular mechanisms. By a modified Boyden chamber assay, nitrotyrosine significantly increased AoSMC migration in a concentration-dependent manner. For example, nitrotyrosine at 300 nM increased AoSMC migration up to 152% compared with l-tyrosine-treated control cells (P<0.01). Cell wound healing assay confirmed this effect. Nitrotyrosine significantly increased the expression of some key cell migration-related molecules including PDGF receptor-B, matrix metalloproteinase 2 (MMP2) and integrins alphaV and beta3 at both mRNA and protein levels in AoSMC (P<0.01). In addition, nitrotyrosine increased reactive oxygen species (ROS) production in AoSMC by staining with fluorescent dye DCFHDA. Furthermore, nitrotyrosine induced transient phosphorylation of ERK2 by Bio-Plex luminex immunoassay and western blot analysis. AoSMC were able to uptake nitrotyrosine. Antioxidants including seleno-l-methionine and superoxide dismutase mimetic (MnTBAP) as well as ERK1/2 inhibitor PD98059 effectively blocked the promoting effect of nitrotyrosine on AoSMC migration and the mRNA expression of above cell migration-related molecules. Thus, nitrotyrosine directly increases AoSMC migration in vitro and the expression of migration-related molecules through overproduction of ROS and activation of ERK1/2 pathway. Nitrotyrosine may contribute to cardiovascular pathogenesis.
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Jia G, Cheng G, Gangahar DM, Agrawal DK. Involvement of connexin 43 in angiotensin II-induced migration and proliferation of saphenous vein smooth muscle cells via the MAPK-AP-1 signaling pathway. J Mol Cell Cardiol 2008; 44:882-90. [PMID: 18405916 DOI: 10.1016/j.yjmcc.2008.03.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2007] [Revised: 03/03/2008] [Accepted: 03/04/2008] [Indexed: 11/28/2022]
Abstract
Proliferation and migration of vascular smooth muscle cells (VSMCs) lead to intimal thickening and influence the long-term patency of venous graft post coronary arterial bypass graft. There is increasing evidence that connexins are involved in the development of intimal hyperplasia and restenosis. We assessed connexin 43 (Cx43) expression and its role in angiotensin II-induced proliferation and migration of smooth muscle cells and the signal pathways involved in human saphenous vein bypass conduits. Angiotensin II significantly increased gap junctional intercellular communication and induced the expression of Cx43 in human saphenous vein SMCs in a dose- and time-dependent manner through angiotensin II type 1 receptor. The effect of angiotensin II was blocked by siRNA of ERK 1/2, p38 MAPK and JNK, respectively. Overexpression of Cx43 markedly increased the proliferation of saphenous vein SMCs. However, siRNA for Cx43 inhibited angiotensin II-induced proliferation, cyclin E expression and migration of human saphenous vein SMCs. In dual-luciferase reporter assay, angiotensin II markedly activated AP-1 transcription factor, which was significantly attenuated by a dominant-negative AP-1 (A-Fos) with subsequent inhibition of angiotensin II-induced transcriptional expression of Cx43. These data demonstrate the role of Cx43 in the proliferation and migration of human saphenous vein SMCs and angiotensin II-induced Cx43 expression via mitogen-activated protein kinases (MAPK)-AP-1 signaling pathway.
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Affiliation(s)
- Guanghong Jia
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE 68178, USA
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Mu H, Wang X, Lin PH, Yao Q, Chen C. Chlorotyrosine promotes human aortic smooth muscle cell migration through increasing superoxide anion production and ERK1/2 activation. Atherosclerosis 2008; 201:67-75. [PMID: 18281051 DOI: 10.1016/j.atherosclerosis.2007.12.049] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2007] [Revised: 11/17/2007] [Accepted: 12/20/2007] [Indexed: 10/22/2022]
Abstract
Chlorotyrosine is an oxidative product of hypochlorous acid and l-tyrosine, and is considered as a biomarker for oxidative stress and cardiovascular disease. However, it is not clear whether chlorotyrosine could directly contribute to vascular pathogenesis. In this study, we investigated the effect and potential mechanisms of chlorotyrosine on human aortic smooth muscle cell (AoSMC) migration. With Boyden chamber and wound healing assays, chlorotyrosine significantly increased AoSMC migration in a concentration- and time-dependent manner. In addition, chlorotyrosine significantly increased the expression of several key molecules related to cell migration including PDGF receptor-B (PDGFR-B), matrix metalloproteinases (MMP-1 and MMP-2) and integrins (alpha3, alphaV, and beta3) in AoSMC at both mRNA and protein levels. Furthermore, chlorotyrosine also increased superoxide anion generation in AoSMC with the fluorescent dye dihydroethidium (DHE) staining. Activation of mitogen-activated protein kinases (MAPKs) was analyzed with Bio-Plex Luminex immunoassay and Western blotting. Chlorotyrosine induced a transient phosphorylation of ERK1/2, but not JNK and p38 MAPKs. Antioxidants including selenomethionine (SeMet) and Mn(III) tetrakis (4-benzoic acid) porphyrin (MnTBAP) as well as ERK1/2 inhibitor PD98059 effectively blocked chlorotyrosine-induced AoSMC migration. Thus, these findings demonstrate new biological functions of chlorotyrosine in human SMC migration, which may play a crucial role in the vascular lesion formation.
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Affiliation(s)
- Hong Mu
- Molecular Surgeon Research Center, Division of Vascular Surgery and Endovascular Therapy, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, and Michael E. DeBakey VA Medical Center, Houston, TX 77030, United States
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40
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Viola M, Vigetti D, Genasetti A, Rizzi M, Karousou E, Moretto P, Clerici M, Bartolini B, Pallotti F, De Luca G, Passi A. Molecular control of the hyaluronan biosynthesis. Connect Tissue Res 2008; 49:111-4. [PMID: 18661323 DOI: 10.1080/03008200802148405] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Hyaluronan (HA) is the only unsulfated glycosaminoglycan (GAG) composed of repeating units of D-glucuronic acid and N-acetylglucosamine. The amount and the molecular weight of HA are important factors that regulate the physiology and pathology in several mammalian tissues. In fact hydrated HA makes ECM an ideal environment in which cells can move and proliferate. HA interacting with several receptors at the cellular level plays a critical role in signal transduction responses. The control of the HA synthesis is therefore a critical aspect in ECM and cells biology, but so far the information about this question is scanty. The synthesis of HA is due to several enzymes activities which not only involves its synthetic enzymes on the membranes of the cells (HA synthases 1, 2, 3, isoforms) but also the cytoplasmatic enzymes producing the UDP-sugar precursors. The UDP-sugars availability in cytoplasm is a critical point for the GAG synthesis and it seems to affect particularly the HA production. Eventually, the activity control of the enzymes involved in HA metabolism is obtained throughout both enzyme amount and their postsynthetic covalent modification, as phosphorylation. In fact, it was recently reported that HA synthase 3 may be phosphorylated after specific stimuli, and an increasing body of evidence supports the idea that the synthetic pathway of HA may be carefully regulated in all steps.
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Affiliation(s)
- Manuela Viola
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Universita' Degli Studi dell'Insubria, Varese, Italy
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41
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Vigetti D, Moretto P, Viola M, Genasetti A, Rizzi M, Karousou E, Clerici M, Bartolini B, Pallotti F, De Luca G, Passi A. Aortic smooth muscle cells migration and the role of metalloproteinases and hyaluronan. Connect Tissue Res 2008; 49:189-92. [PMID: 18661340 DOI: 10.1080/03008200802143141] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Human aortic smooth muscle cells (AoSMCs) change their extracellular matrix composition during aging, with direct effects on cellular events and cell migration. For example, active matrix metalloproteinase-2 (MMP-2) is synthesized only by young AoSMCs, whereas aged cells produce only the inactive zymogen form. The pro-MMP-2 activation in young cells depends on an increase in membrane type 1 matrix metalloproteinase content. Furthermore, transcripts coding for tissue inhibitor of metalloproteinases (TIMPs) were upregulated in aged cells, and the increase of TIMPs also could prevent pro-MMP-2 activation. As consequence of these situations, young AoSMCs possess a higher migratory capability than aged cells on gelatin support. These data are confirmed by adding TIMP-1 and TIMP-2 to young cells which reproduces aged AoSMCs migratory behavior. The opposite effect was obtained in young cells silencing MMP-2 and TIMP-2.
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Affiliation(s)
- Davide Vigetti
- Department of Experimental Biomedical and Clinical Sciences, University of Insubria, Varese, Italy
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42
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Vigetti D, Viola M, Karousou E, Rizzi M, Moretto P, Genasetti A, Clerici M, Hascall VC, De Luca G, Passi A. Hyaluronan-CD44-ERK1/2 regulate human aortic smooth muscle cell motility during aging. J Biol Chem 2007; 283:4448-58. [PMID: 18077444 DOI: 10.1074/jbc.m709051200] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The glycosaminoglycan hyaluronan (HA) modulates cell proliferation and migration, and it is involved in several human vascular pathologies including atherosclerosis and vascular restenosis. During intima layer thickening, HA increases dramatically in the neointima extracellular matrix. Aging is one of the major risk factors for the insurgence of vascular diseases, in which smooth muscle cells (SMCs) play a role by determining neointima formation through their migration and proliferation. Therefore, we established an in vitro aging model consisting of sequential passages of human aortic smooth muscle cells (AoSMCs). Comparing young and aged cells, we found that, during the aging process in vitro,HA synthesis significantly increases, as do HA synthetic enzymes (i.e. HAS2 and HAS3), the precursor synthetic enzyme (UDP-glucose dehydrogenase), and the HA receptor CD44. In aged cells, we also observed increased CD44 signaling that consisted of higher levels of phosphorylated MAP kinase ERK1/2. Further, aged AoSMCs migrated faster than young cells, and such migration could be modulated by HA, which alters the ERK1/2 phosphorylation. HA oligosaccharides of 6.8 kDa and an anti-CD44 blocking antibody prevented ERK1/2 phosphorylation and inhibited AoSMCs migration. These results indicate that, during aging, HA can modulate cell migration involving CD44-mediated signaling through ERK1/2. These data suggest that age-related HA accumulation could promote SMC migration and intima thickening during vascular neointima formation.
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Affiliation(s)
- Davide Vigetti
- Dip. di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, via J. H. Dunant 5, 21100 Varese, Italy
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Abstracts of the XXVII Italian Society for the Study of Connective Tissues (SISC) Meeting, Bologna, Italy, 8-10 November 2007. Connect Tissue Res 2007; 48:338-63. [PMID: 18075821 DOI: 10.1080/03008200701726970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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