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Monteiro MM, Gomes CC, Cruz MC, Horliana ACRT, Hamassaki DE, Lima CR, Santos MF. High glucose impairs human periodontal ligament cells migration through lowered microRNAs 221 and 222. J Periodontal Res 2024; 59:336-345. [PMID: 38041212 DOI: 10.1111/jre.13217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 11/02/2023] [Accepted: 11/14/2023] [Indexed: 12/03/2023]
Abstract
OBJECTIVE To investigate the effects of miR-221 and miR-222 and high glucose on human periodontal ligament (PL) cells morphology, cytoskeleton, adhesion, and migration. BACKGROUND Chronic hyperglycemia is common in uncontrolled diabetes mellitus (DM) and plays a central role in long-term DM complications, such as impaired periodontal healing. We have previously shown that high glucose increases apoptosis of human PL cells by inhibiting miR-221 and miR-222 and consequently augmenting their target caspase-3. However, other effects of miR-221/222 downregulation on PL cells are still unknown. METHODS Cells from young humans' premolar teeth were cultured for 7 days under 5 or 30 mM glucose. Directional and spontaneous migration on fibronectin were studied using transwell and time-lapse assays, respectively. F-actin staining was employed to study cell morphology and the actin cytoskeleton. MiR-221 and miR-222 were inhibited using antagomiRs, and their expressions were evaluated by real-time RT-PCR. RESULTS High glucose inhibited PL cells early adhesion, spreading, and migration on fibronectin. Cells exposed to high glucose showed reduced polarization, velocity, and directionality. They formed several simultaneous unstable and short-lived protrusions, suggesting impairment of adhesion maturation. MiR-221 and miR-222 inhibition also reduced migration, decreasing cell directionality but not significantly cell velocity. After miR-221 and miR-222 downregulation cells showed morphological resemblance with cells exposed to high glucose. CONCLUSION High glucose impairs human PL cells migration potentially through a mechanism involving reduction of microRNA-221 and microRNA-222 expression. These effects may contribute to the impairment of periodontal healing, especially after surgery and during guided regeneration therapies.
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Affiliation(s)
- Mariana Marin Monteiro
- Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil
| | - Cibele Crastequini Gomes
- Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil
| | - Mario Costa Cruz
- Center of Facilities for Research Support (CEFAP-USP), Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil
| | | | - Dânia Emi Hamassaki
- Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil
| | - Cilene Rebouças Lima
- Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil
| | - Marinilce F Santos
- Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil
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2
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Burger B, Sagiorato RN, Silva JR, Candreva T, Pacheco MR, White D, Castelucci BG, Pral LP, Fisk HL, Rabelo ILA, Elias-Oliveira J, Osório WR, Consonni SR, Farias ADS, Vinolo MAR, Lameu C, Carlos D, Fielding BA, Whyte MB, Martinez FO, Calder PC, Rodrigues HG. Eicosapentaenoic acid-rich oil supplementation activates PPAR-γ and delays skin wound healing in type 1 diabetic mice. Front Immunol 2023; 14:1141731. [PMID: 37359536 PMCID: PMC10289002 DOI: 10.3389/fimmu.2023.1141731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/15/2023] [Indexed: 06/28/2023] Open
Abstract
Delayed wound healing is a devastating complication of diabetes and supplementation with fish oil, a source of anti-inflammatory omega-3 (ω-3) fatty acids including eicosapentaenoic acid (EPA), seems an appealing treatment strategy. However, some studies have shown that ω-3 fatty acids may have a deleterious effect on skin repair and the effects of oral administration of EPA on wound healing in diabetes are unclear. We used streptozotocin-induced diabetes as a mouse model to investigate the effects of oral administration of an EPA-rich oil on wound closure and quality of new tissue formed. Gas chromatography analysis of serum and skin showed that EPA-rich oil increased the incorporation of ω-3 and decreased ω-6 fatty acids, resulting in reduction of the ω-6/ω-3 ratio. On the tenth day after wounding, EPA increased production of IL-10 by neutrophils in the wound, reduced collagen deposition, and ultimately delayed wound closure and impaired quality of the healed tissue. This effect was PPAR-γ-dependent. EPA and IL-10 reduced collagen production by fibroblasts in vitro. In vivo, topical PPAR-γ-blockade reversed the deleterious effects of EPA on wound closure and on collagen organization in diabetic mice. We also observed a reduction in IL-10 production by neutrophils in diabetic mice treated topically with the PPAR-γ blocker. These results show that oral supplementation with EPA-rich oil impairs skin wound healing in diabetes, acting on inflammatory and non-inflammatory cells.
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Affiliation(s)
- Beatriz Burger
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Roberta Nicolli Sagiorato
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Jéssica Rondoni Silva
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Thamiris Candreva
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Mariana R. Pacheco
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Daniel White
- Department of General Surgery, The Royal Surrey National Health Service (NHS) Foundation Trust Hospital, Guildford, United Kingdom
| | - Bianca G. Castelucci
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Laís P. Pral
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Helena L. Fisk
- School of Human Development & Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Izadora L. A. Rabelo
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Jefferson Elias-Oliveira
- Departments of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Wislei Riuper Osório
- Laboratory of Manufacturing Advanced Materials, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Silvio Roberto Consonni
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Alessandro dos Santos Farias
- Autoimmune Research Lab, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Marco Aurélio Ramirez Vinolo
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Claudiana Lameu
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Daniela Carlos
- Departments of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Barbara A. Fielding
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Martin Brunel Whyte
- Department of Medicine, King’s College Hospital National Health Service (NHS) Foundation Trust, London, United Kingdom
- Department of Clinical & Experimental Medicine, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Fernando O. Martinez
- Department of Biochemical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Philip C. Calder
- School of Human Development & Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- National Institute for Health and Care Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton National Health Service (NHS) Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Hosana Gomes Rodrigues
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
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3
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Rai V, Moellmer R, Agrawal DK. Role of fibroblast plasticity and heterogeneity in modulating angiogenesis and healing in the diabetic foot ulcer. Mol Biol Rep 2023; 50:1913-1929. [PMID: 36528662 DOI: 10.1007/s11033-022-08107-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 11/09/2022] [Indexed: 12/23/2022]
Abstract
Chronic diabetic foot ulcers (DFUs) are an important clinical issue faced by clinicians despite the advanced treatment strategies consisting of wound debridement, off-loading, medication, wound dressings, and keeping the ulcer clean. Non-healing DFUs are associated with the risk of amputation, increased morbidity and mortality, and economic stress. Neo-angiogenesis and granulation tissue formation are necessary for physiological DFU healing and acute inflammation play a key role in healing. However, chronic inflammation in association with diabetic complications holds the ulcer in the inflammatory phase without progressing to the resolution phase contributing to non-healing. Fibroblasts acquiring myofibroblasts phenotype contribute to granulation tissue formation and angiogenesis. However, recent studies suggest the presence of five subtypes of fibroblast population and of changing density in non-healing DFUs. Further, the association of fibroblast plasticity and heterogeneity with wound healing suggests that the switch in fibroblast phenotype may affect wound healing. The fibroblast phenotype shift and altered function may be due to the presence of chronic inflammation or a diabetic wound microenvironment. This review focuses on the role of fibroblast plasticity and heterogeneity, the effect of hyperglycemia and inflammatory cytokines on fibroblasts, and the interaction of fibroblasts with other cells in diabetic wound microenvironment in the perspective of DFU healing. Next, we summarize secretory, angiogenic, and angiostatic phenotypes of fibroblast which have been discussed in other organ systems but not in relation to DFUs followed by the perspective on the role of their phenotypes in promoting angiogenesis in DFUs.
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Affiliation(s)
- Vikrant Rai
- Department of Translational Research, Western University of Health Sciences, 91766, Pomona, CA, USA.
| | - Rebecca Moellmer
- College of Podiatric Medicine, Western University of Health Sciences, 91766, Pomona, CA, USA
| | - Devendra K Agrawal
- Department of Translational Research, Western University of Health Sciences, 91766, Pomona, CA, USA
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Advanced Glycation End Products Effects on Adipocyte Niche Stiffness and Cell Signaling. Int J Mol Sci 2023; 24:ijms24032261. [PMID: 36768583 PMCID: PMC9917270 DOI: 10.3390/ijms24032261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/26/2023] Open
Abstract
Adipose tissue metabolism under hyperglycemia results in Type II diabetes (T2D). To better understand how the adipocytes function, we used a cell culture that was exposed to glycation by adding intermediate carbonyl products, which caused chemical cross-linking and led to the formation of advanced glycation end products (AGEs). The AGEs increased the cells and their niche stiffness and altered the rheological viscoelastic properties of the cultured cells leading to altered cell signaling. The AGEs formed concomitant with changes in protein structure, quantified by spectroscopy using the 8-ANS and Nile red probes. The AGE effects on adipocyte differentiation were viewed by imaging and evidenced in a reduction in cellular motility and membrane dynamics. Importantly, the alteration led to reduced adipogenesis, that is also measured by qPCR for expression of adipogenic genes and cell signaling. The evidence of alteration in the plasma membrane (PM) dynamics (measured by CTxB binding and NP endocytosis), also led to the impairment of signal transduction and a decrease in AKT phosphorylation, which hindered downstream insulin signaling. The study, therefore, presents a new interpretation of how AGEs affect the cell niche, PM stiffness, and cell signaling leading to an impairment of insulin signaling.
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Evangelatov A, Georgiev G, Arabadjiev B, Pankov S, Krastev P, Momchilova A, Pankov R. Hyperglycemia attenuates fibroblast contractility via suppression of TβRII receptor modulated α-smooth muscle actin expression. BIOTECHNOL BIOTEC EQ 2022. [DOI: 10.1080/13102818.2022.2041486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Alexandar Evangelatov
- Department of Cytology, Histology and Embryology, Faculty of Biology, Sofia University “St. Kliment Ohridski”, Sofia, Bulgaria
| | - Georgi Georgiev
- Department of Cytology, Histology and Embryology, Faculty of Biology, Sofia University “St. Kliment Ohridski”, Sofia, Bulgaria
| | - Borislav Arabadjiev
- Department of Cytology, Histology and Embryology, Faculty of Biology, Sofia University “St. Kliment Ohridski”, Sofia, Bulgaria
| | - Stefan Pankov
- Department of Lipid-Protein Interactions, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Plamen Krastev
- Cardiology Clinic, University Hospital “St. Ekaterina”, Sofia, Bulgaria
| | - Albena Momchilova
- Department of Lipid-Protein Interactions, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Roumen Pankov
- Department of Cytology, Histology and Embryology, Faculty of Biology, Sofia University “St. Kliment Ohridski”, Sofia, Bulgaria
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Kanta J, Zavadakova A, Sticova E, Dubsky M. Fibronectin in hyperglycaemia and its potential use in the treatment of diabetic foot ulcers: A review. Int Wound J 2022; 20:1750-1761. [PMID: 36537075 PMCID: PMC10088845 DOI: 10.1111/iwj.13997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/20/2022] [Accepted: 10/20/2022] [Indexed: 12/24/2022] Open
Abstract
Metabolism of fibronectin, the protein that plays a key role in the healing of wounds, is changed in the patients with diabetes mellitus. Fibronectin can interact with other proteins and proteoglycans and organise them to form the extracellular matrix, the basis of the granulation tissue in healing wounds. However, diabetic foot ulcers (DFUs) suffer from inadequate deposition of this protein. Degradation prevails over fibronectin synthesis in the proteolytic inflammatory environment in the ulcers. Because of the lack of fibronectin in the wound bed, the assembly of the extracellular matrix and the deposition of the granulation tissue cannot be started. A number of methods have been designed that prevents fibronectin degradation, replace lacking fibronectin or support its formation in non-healing wounds in animal models of diabetes. The aim of this article is to review the metabolism of fibronectin in DFUs and to emphasise that it would be useful to pay more attention to fibronectin matrix assembly in the ulcers when laboratory methods are translated to clinical practice.
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Affiliation(s)
- Jiri Kanta
- Faculty of Medicine Charles University Hradec Kralove Czech Republic
| | - Anna Zavadakova
- Biomedical Center, Faculty of Medicine Charles University Pilsen Czech Republic
| | - Eva Sticova
- Diabetes Center Institute for Clinical and Experimental Medicine Prague Czech Republic
- Third Faculty of Medicine Charles University Prague Czech Republic
| | - Michal Dubsky
- Diabetes Center Institute for Clinical and Experimental Medicine Prague Czech Republic
- First Faculty of Medicine Charles University Prague Czech Republic
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7
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Zhao X, Xu M, Tang Y, Xie D, Wang Y, Chen M. Changes in miroRNA-103 expression in wound margin tissue are related to wound healing of diabetes foot ulcers. Int Wound J 2022; 20:467-483. [PMID: 35837786 PMCID: PMC9885465 DOI: 10.1111/iwj.13895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/25/2022] [Accepted: 06/28/2022] [Indexed: 02/03/2023] Open
Abstract
To investigate the relationship between small noncoding microRNA-103 (miR-103) and wound healing of diabetic foot ulcers (DFU) and the underlying molecular mechanism, forty type 2 diabetes mellitus with DFU (DFU group), and 20 patients with a chronic skin ulcer of lower limbs and normal glucose tolerance (SUC group) were included. Quantitative real-time PCR method was used to determine miR-103 expression levels in the wound margin tissue of subjects, and to analyse the relationship between the expression of miR-103 and DFU wound healing. In vitro experiments were also performed to understand the effect of miR-103 on the high glucose-induced injury of normal human dermal fibroblasts (NHDFs) cells. The results showed that the miR-103 expression level in the DFU group was significantly higher than that in the SUC group [5.81 (2.25-9.36) vs 2.08 (1.15-5.72)] (P < 0.05). The expression level of miR-103 in the wound margin tissue of DFU was negatively correlated with the healing rate of foot ulcers after four weeks (P = 0.037). In vitro experiments revealed that miR-103 could inhibit the proliferation and migration of NHDF cells and promote the apoptosis of NHDF cells by targeted regulation of regulator of calcineurin 1 (RCAN1) gene expression in a high glucose environment. Down-regulation of miR-103 could alleviate high glucose-induced NHDF cell injury by promoting RCAN1 expression. Therefore, the increased expression of miR-103 is involved in the functional damage of NHDF cells induced by high-glucose conditions, which is related to poor wound healing of DFU. These research findings will provide potential targets for the diagnosis and treatment of chronic skin wounds in diabetes.
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Affiliation(s)
- Xiaotong Zhao
- Department of Endocrinologythe First Affiliated Hospital of Anhui Medical UniversityHefeiPeople's Republic of China
| | - Murong Xu
- Department of Endocrinologythe First Affiliated Hospital of Anhui Medical UniversityHefeiPeople's Republic of China
| | - Ying Tang
- Department of Endocrinologythe First Affiliated Hospital of Anhui Medical UniversityHefeiPeople's Republic of China
| | - Dandan Xie
- Department of Endocrinologythe First Affiliated Hospital of Anhui Medical UniversityHefeiPeople's Republic of China
| | - Youmin Wang
- Department of Endocrinologythe First Affiliated Hospital of Anhui Medical UniversityHefeiPeople's Republic of China
| | - Mingwei Chen
- Department of Endocrinologythe First Affiliated Hospital of Anhui Medical UniversityHefeiPeople's Republic of China
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8
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Dab H, Chehidi A, Tlili M, Ben Saad A, Khabir A, Zourgui L. Cardiac extracellular matrix modulation in a rat-diabetic model: biochemical and anti-oxidant beneficial effect of pomegranate ( Punica granatum) peel extract. Biomarkers 2021; 27:50-59. [PMID: 34766858 DOI: 10.1080/1354750x.2021.2006312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
CONTEXT Disorders associated with diabetes and the beneficial effects of pomegranate peel extract (PPE) were widely reported. However effect of diabetes and PPE on extracellular matrix (ECM) remodelling needs further investigation. OBJECTIVES The focus of this study was to investigate the involvement of diabetes in cardiac ECM and the beneficial effects of PPE. METHODS Diabetes was induced by alloxan. PPE group was injected with 100 mg/kg of PPE. The phenolic profile of PPE was analyzed by HPLC. ECM was detected by ELISA. MMP-1, -8, -13 were determined by a colorimetric assay. RESULTS Compared to control fibronectin and laminin plasma content was higher respectively by 69% and 42% (p < 0.05) in diabetes. LV content of hydroxyproline and total collagen was higher by 195% (p < 0.01) and 56% (p < 0.05) in the diabetic group compared to control and restored at a similar level to controls in the PPE group. Compared to control, collagenase activity was significantly reduced by 32% (p < 0.05) and 35% (p < 0.05) respectively in ALX and PPF groups. There is no significant difference in collagenase activities in diabetic rats after and before PPE injection. CONCLUSION Diabetes is involved in cardiac ECM remodelling which can be improved by PPE. These findings will be useful for more understanding diabetes-induced cardiac disorders.
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Affiliation(s)
- Houcine Dab
- Research Unit of "Valorization of Active Biomolecules", Higher Institute of Applied Biology of Medenine, University of Gabes, Gabes, Tunisia
| | - Amel Chehidi
- Research Unit of "Valorization of Active Biomolecules", Higher Institute of Applied Biology of Medenine, University of Gabes, Gabes, Tunisia
| | - Mounira Tlili
- Faculty of Sciences of Bizerte, Laboratory of Integrative Physiology, University of Carthage, Carthage, Tunisia
| | - Anwar Ben Saad
- Faculty of Sciences of Gafsa, Research of Macromolecular Biochemistry and Genetics, University of Gafsa, Gafsa, Tunisia
| | - Abdelmajid Khabir
- Department of Pathology, Habib Bourguiba Hospital, Medenine, Tunisia
| | - Lazhar Zourgui
- Research Unit of "Valorization of Active Biomolecules", Higher Institute of Applied Biology of Medenine, University of Gabes, Gabes, Tunisia
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Burr SD, Harmon MB, Jr JAS. The Impact of Diabetic Conditions and AGE/RAGE Signaling on Cardiac Fibroblast Migration. Front Cell Dev Biol 2020; 8:112. [PMID: 32158758 PMCID: PMC7052116 DOI: 10.3389/fcell.2020.00112] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/10/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetic individuals have an increased risk for developing cardiovascular disease due to stiffening of the left ventricle (LV), which is thought to occur, in part, by increased AGE/RAGE signaling inducing fibroblast differentiation. Advanced glycated end-products (AGEs) accumulate within the body over time, and under hyperglycemic conditions, the formation and accumulation of AGEs is accelerated. AGEs exert their effect by binding to their receptor (RAGE) and can induce myofibroblast differentiation, leading to increased cell migration. Previous studies have focused on fibroblast migration during wound healing, in which diabetics have impaired fibroblast migration compared to healthy individuals. However, the impact of diabetic conditions as well as AGE/RAGE signaling has not been extensively studied in cardiac fibroblasts. Therefore, the goal of this study was to determine how the AGE/RAGE signaling pathway impacts cell migration in non-diabetic and diabetic cardiac fibroblasts. Cardiac fibroblasts were isolated from non-diabetic and diabetic mice with and without functional RAGE and used to perform a migration assay. Cardiac fibroblasts were plated on plastic, non-diabetic, or diabetic collagen, and when confluency was reached, a line of migration was generated by scratching the plate and followed by treatment with pharmacological agents that modify AGE/RAGE signaling. Modification of the AGE/RAGE signaling cascade was done with ERK1/2 and PKC-ζ inhibitors as well as treatment with exogenous AGEs. Diabetic fibroblasts displayed an increase in migration compared to non-diabetic fibroblasts whereas inhibiting the AGE/RAGE signaling pathway resulted in a significant increase in migration. The results indicate that the AGE/RAGE signaling cascade causes a decrease in cardiac fibroblast migration and altering the pathway will produce alterations in cardiac fibroblast migration.
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Affiliation(s)
- Stephanie D Burr
- Department of BioMolecular Sciences, School of Pharmacy, The University of Mississippi, Oxford, MS, United States
| | - Mallory B Harmon
- Department of BioMolecular Sciences, School of Pharmacy, The University of Mississippi, Oxford, MS, United States
| | - James A Stewart Jr
- Department of BioMolecular Sciences, School of Pharmacy, The University of Mississippi, Oxford, MS, United States
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10
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Berlanga-Acosta JA, Guillén-Nieto GE, Rodríguez-Rodríguez N, Mendoza-Mari Y, Bringas-Vega ML, Berlanga-Saez JO, García del Barco Herrera D, Martinez-Jimenez I, Hernandez-Gutierrez S, Valdés-Sosa PA. Cellular Senescence as the Pathogenic Hub of Diabetes-Related Wound Chronicity. Front Endocrinol (Lausanne) 2020; 11:573032. [PMID: 33042026 PMCID: PMC7525211 DOI: 10.3389/fendo.2020.573032] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/13/2020] [Indexed: 01/10/2023] Open
Abstract
Diabetes is constantly increasing at a rate that outpaces genetic variation and approaches to pandemic magnitude. Skin cells physiology and the cutaneous healing response are progressively undermined in diabetes which predisposes to lower limb ulceration, recidivism, and subsequent lower extremities amputation as a frightened complication. The molecular operators whereby diabetes reduces tissues resilience and hampers the repair mechanisms remain elusive. We have accrued the notion that diabetic environment embraces preconditioning factors that definitively propel premature cellular senescence, and that ulcer cells senescence impair the healing response. Hyperglycemia/oxidative stress/mitochondrial and DNA damage may act as major drivers sculpturing the senescent phenotype. We review here historical and recent evidences that substantiate the hypothesis that diabetic foot ulcers healing trajectory, is definitively impinged by a self-expanding and self-perpetuative senescent cells society that drives wound chronicity. This society may be fostered by a diabetic archetypal secretome that induces replicative senescence in dermal fibroblasts, endothelial cells, and keratinocytes. Mesenchymal stem cells are also susceptible to major diabetic senescence drivers, which accounts for the inability of these cells to appropriately assist in diabetics wound healing. Thus, the use of autologous stem cells has not translated in significant clinical outcomes. Novel and multifaceted therapeutic approaches are required to pharmacologically mitigate the diabetic cellular senescence operators and reduce the secondary multi-organs complications. The senescent cells society and its adjunctive secretome could be an ideal local target to manipulate diabetic ulcers and prevent wound chronification and acute recidivism. This futuristic goal demands harnessing the diabetic wound chronicity epigenomic signature.
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Affiliation(s)
- Jorge A. Berlanga-Acosta
- The Clinical Hospital Chengdu Brain Sciences Institute, University of Electronic Science and Technology of China, Chengdu, China
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Gerardo E. Guillén-Nieto
- The Clinical Hospital Chengdu Brain Sciences Institute, University of Electronic Science and Technology of China, Chengdu, China
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Nadia Rodríguez-Rodríguez
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Yssel Mendoza-Mari
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Maria Luisa Bringas-Vega
- The Clinical Hospital Chengdu Brain Sciences Institute, University of Electronic Science and Technology of China, Chengdu, China
- Cuban Neurosciences Center, Playa, Cuba
| | - Jorge O. Berlanga-Saez
- Applied Mathematics Department, Institute of Mathematics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Diana García del Barco Herrera
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Indira Martinez-Jimenez
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | | | - Pedro A. Valdés-Sosa
- The Clinical Hospital Chengdu Brain Sciences Institute, University of Electronic Science and Technology of China, Chengdu, China
- Cuban Neurosciences Center, Playa, Cuba
- *Correspondence: Pedro A. Valdés-Sosa
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11
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Sec62 promotes early recurrence of hepatocellular carcinoma through activating integrinα/CAV1 signalling. Oncogenesis 2019; 8:74. [PMID: 31822656 PMCID: PMC6904485 DOI: 10.1038/s41389-019-0183-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 11/19/2019] [Accepted: 11/25/2019] [Indexed: 12/14/2022] Open
Abstract
Postsurgical recurrence within 2 years is the major cause of poor survival of hepatocellular carcinoma (HCC) patients. However, the molecular mechanism underlying HCC recurrence remains unclear. Here, we distinguish the function and mechanism of Sec62 in promoting HCC recurrence. The correlation between Sec62 and early recurrence was demonstrated in 60 HCC samples from a prospective study. HCC cells with Sec62 knockdown (Sec62KD) or overexpression (Sec62OE) were used to determine the potential of Sec62 in cell migration in vitro. Microarray analysis comparing Sec62KD or Sec62OE to their control counterparts was used to explore the mechanisms of Sec62-induced recurrence. A luciferase-labelled orthotopic nude mouse model of HCC with Sec62KD or Sec62OE was used to validate the potential of Sec62 in early HCC recurrence in vivo. We found that high expression of Sec62 was positively correlated with surgical recurrence in clinical HCC samples. Multivariate analysis revealed that Sec62 was an independent prognostic factor for early recurrence in postoperative HCC patients. Moreover, Sec62 promoted migration and invasion of HCC cells in vitro and postsurgical recurrence in vivo. Mechanically, integrinα/CAV1 signalling was identified as one of the targets of Sec62 in cell movement. Overexpression of integrin α partially rescued the Sec62 knockdown-induced inhibition of cell migration. Sec62 is a potentially prognostic factor for early recurrence in postoperative HCC patients and promotes HCC metastasis through integrinα/CAV1 signalling. Sec62 might be an attractive drug target for combating HCC postsurgical recurrence.
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Bakhteyari Ph D Candidate A, Zarrin Y, Nikpour P, Sadat Hosseiny Z, Sadat Mostafavi F, Eskandari N, Matinfar M, Aboutorabi R. Diabetes mellitus increased integrins gene expression in rat endometrium at the time of embryo implantation. Int J Reprod Biomed 2019; 17:395-404. [PMID: 31508564 PMCID: PMC6719519 DOI: 10.18502/ijrm.v17i6.4810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/14/2019] [Accepted: 01/30/2019] [Indexed: 11/24/2022] Open
Abstract
Background Diabetes mellitus deeply changes the genes expression of integrin (Itg) subunits in several cells and tissues such as monocytes, arterial endothelium, kidney glomerular cells, retina. Furthermore, hyperglycemia could impress and reduce the rate of successful assisted as well as non-assisted pregnancy. Endometrium undergoes thorough changes in normal menstrual cycle and the question is: What happens in the endometrium under diabetic condition? Objective The aim of the current study was to investigate the endometrial gene expression of α3, α4, αv, Itg β1 and β3 subunits in diabetic rat models at the time of embryo implantation. Materials and Methods Twenty-eight rats were randomly divided into 4 groups: control group, diabetic group, pioglitazone-treated group, and metformin-treated group. Real-time PCR was performed to determine changes in the expression of Itg α3, α4, αv, β1, and β3 genes in rat's endometrium. Results The expression of all Itg subunits increased significantly in diabetic rats' endometrium compared with control group. Treatment with pioglitazone significantly reduced the level of Itg subunits gene expression compared with diabetic rats. While metformin had a different effect on α3 and α4 and elevated these two subunits gene expression. Conclusion Diabetes mellitus significantly increased the expression of studied Itg subunits, therefore untreated diabetes could be potentially assumed as one of the preliminary elements in embryo implantation failure.
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Affiliation(s)
- Abbas Bakhteyari Ph D Candidate
- Department of Anatomical Sciences, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Internal Medicine Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Yasaman Zarrin
- Department of Anatomical Sciences, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parvaneh Nikpour
- Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zeinab Sadat Hosseiny
- Department of Anatomical Sciences, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemah Sadat Mostafavi
- Department of Anatomical Sciences, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nahid Eskandari
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Matinfar
- Department of Internal Medicine Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Roshanak Aboutorabi
- Department of Anatomical Sciences, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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13
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García-Gareta E, Levin A, Hook L. Engineering the migration and attachment behaviour of primary dermal fibroblasts. Biotechnol Bioeng 2019; 116:1102-1115. [PMID: 30659581 DOI: 10.1002/bit.26927] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/31/2018] [Accepted: 01/16/2019] [Indexed: 01/21/2023]
Abstract
The availability of primary cells present in pathological conditions is often very limited due to stringent ethical regulation and patient consent. One such condition is chronic wounds, where dermal fibroblasts show a deficient migration. In vitro models with cellular tools that mimic the in vivo scenario would be advantageous to test new therapies for these challenging wounds. Since the availability of primary dermal fibroblasts present in chronic wounds is restricted and their "shelf-life" limited due to the increased senescence, our aim was to engineer human dermal fibroblasts with impaired migration using synthetic Arg-Gly-Asp (RGD) peptides. We studied fibroblast behaviour on three different two dimensional (2D) surfaces, representative of the dermal extracellular matrix and the materials used in the development of dermal scaffolds, in addition to commercially available, collagen-based 3D dermal scaffolds, demonstrating that the concentration of synthetic RGD peptides necessary to impair migration of dermal fibroblasts should be tailored to the particular surface/material and cell population used. The described technology could be translated to other cell types including established cell lines. A wide range of synthetic peptides exists, which differ in the amino acid sequence, thus increasing the possibilities of this technology.
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Affiliation(s)
- Elena García-Gareta
- Regenerative Biomaterials Group, RAFT Institute, Mount Vernon Hospital, Northwood, UK
| | - Alexandra Levin
- Regenerative Biomaterials Group, RAFT Institute, Mount Vernon Hospital, Northwood, UK
| | - Lilian Hook
- Smart Matrix Limited, Mount Vernon Hospital, Northwood, UK
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14
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Morresi C, Cianfruglia L, Armeni T, Mancini F, Tenore GC, D’Urso E, Micheletti A, Ferretti G, Bacchetti T. Polyphenolic compounds and nutraceutical properties of old and new apple cultivars. J Food Biochem 2018. [DOI: 10.1111/jfbc.12641] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Camilla Morresi
- Department of Life and Environmental Sciences Polytechnic University of Marche Ancona Italy
| | - Laura Cianfruglia
- Department of Clinical Experimental Science and Odontostomatology Polytechnic University of Marche Ancona Italy
| | - Tatiana Armeni
- Department of Clinical Experimental Science and Odontostomatology Polytechnic University of Marche Ancona Italy
| | - Francesca Mancini
- Department of Clinical Experimental Science and Odontostomatology Polytechnic University of Marche Ancona Italy
| | - Gian Carlo Tenore
- Department of Pharmacy University of Naples Federico II Napoli Italy
| | - Emanuela D’Urso
- Department of Pharmacy University of Naples Federico II Napoli Italy
| | - Ambra Micheletti
- Agency for Agro‐food Sector Services of the Marche Region (ASSAM) Osimo Italy
| | - Gianna Ferretti
- Department of Pharmacy University of Naples Federico II Napoli Italy
| | - Tiziana Bacchetti
- Department of Life and Environmental Sciences Polytechnic University of Marche Ancona Italy
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15
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Vieira LFDA, Lins MP, Viana IMMN, dos Santos JE, Smaniotto S, Reis MDDS. Metallic nanoparticles reduce the migration of human fibroblasts in vitro. NANOSCALE RESEARCH LETTERS 2017; 12:200. [PMID: 28314368 PMCID: PMC5355407 DOI: 10.1186/s11671-017-1982-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 03/06/2017] [Indexed: 05/04/2023]
Abstract
Nanoparticles have extremely wide applications in the medical and biological fields. They are being used in biosensors, local drug delivery, diagnostics, and medical therapy. However, the potential effects of nanoparticles on target cell and tissue function, apart from cytotoxicity, are not completely understood. Thus, the aim of this study was to investigate the in vitro effects of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) on human fibroblasts with respect to their interaction with the extracellular matrix and in cell migration. Immunofluorescence analysis revealed that treatment with AgNPs or AuNPs decreased collagen and laminin production at all the concentrations tested (0.1, 1, and 10 μg/mL). Furthermore, cytofluorometric analysis showed that treatment with AgNPs reduced the percentage of cells expressing the collagen receptor very late antigen 2, α2β1 integrin (VLA-2) and the laminin receptor very late antigen 6, α6β1 integrin (VLA-6). In contrast, AuNP treatment increased and decreased the percentages of VLA-2-positive and VLA-6-positive cells, respectively, as compared to the findings for the controls. Analysis of cytoskeletal reorganization showed that treatment with both types of nanoparticles increased the formation of stress fibres and number of cell protrusions and impaired cell polarity. Fibroblasts exposed to different concentrations of AuNPs and AgNPs showed reduced migration through transwell chambers in the functional chemotaxis assay. These results demonstrated that metal nanoparticles may influence fibroblast function by negatively modulating the deposition of extracellular matrix molecules (ECM) and altering the expression of ECM receptors, cytoskeletal reorganization, and cell migration.
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Affiliation(s)
- Larissa Fernanda de Araújo Vieira
- Laboratory of Cell Biology, Institute of Biological Sciences and Health, Federal University of Alagoas, CEP 57072-970 Maceió, Alagoas Brazil
| | - Marvin Paulo Lins
- Laboratory of Cell Biology, Institute of Biological Sciences and Health, Federal University of Alagoas, CEP 57072-970 Maceió, Alagoas Brazil
| | - Iana Mayane Mendes Nicácio Viana
- Laboratory of Cell Biology, Institute of Biological Sciences and Health, Federal University of Alagoas, CEP 57072-970 Maceió, Alagoas Brazil
| | - Jeniffer Estevão dos Santos
- Laboratory of Cell Biology, Institute of Biological Sciences and Health, Federal University of Alagoas, CEP 57072-970 Maceió, Alagoas Brazil
| | - Salete Smaniotto
- Laboratory of Cell Biology, Institute of Biological Sciences and Health, Federal University of Alagoas, CEP 57072-970 Maceió, Alagoas Brazil
| | - Maria Danielma dos Santos Reis
- Laboratory of Cell Biology, Institute of Biological Sciences and Health, Federal University of Alagoas, CEP 57072-970 Maceió, Alagoas Brazil
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16
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Kunkemoeller B, Kyriakides TR. Redox Signaling in Diabetic Wound Healing Regulates Extracellular Matrix Deposition. Antioxid Redox Signal 2017; 27:823-838. [PMID: 28699352 PMCID: PMC5647483 DOI: 10.1089/ars.2017.7263] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
SIGNIFICANCE Impaired wound healing is a major complication of diabetes, and can lead to development of chronic foot ulcers in a significant number of patients. Despite the danger posed by poor healing, very few specific therapies exist, leaving patients at risk of hospitalization, amputation, and further decline in overall health. Recent Advances: Redox signaling is a key regulator of wound healing, especially through its influence on the extracellular matrix (ECM). Normal redox signaling is disrupted in diabetes leading to several pathological mechanisms that alter the balance between reactive oxygen species (ROS) generation and scavenging. Importantly, pathological oxidative stress can alter ECM structure and function. CRITICAL ISSUES There is limited understanding of the specific role of altered redox signaling in the diabetic wound, although there is evidence that ROS are involved in the underlying pathology. FUTURE DIRECTIONS Preclinical studies of antioxidant-based therapies for diabetic wound healing have yielded promising results. Redox-based therapeutics constitute a novel approach for the treatment of wounds in diabetes patients that deserve further investigation. Antioxid. Redox Signal. 27, 823-838.
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Affiliation(s)
- Britta Kunkemoeller
- 1 Department of Pathology, Yale University School of Medicine , New Haven, Connecticut
- 2 Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine , New Haven, Connecticut
| | - Themis R Kyriakides
- 1 Department of Pathology, Yale University School of Medicine , New Haven, Connecticut
- 2 Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine , New Haven, Connecticut
- 3 Department of Biomedical Engineering, Yale University , New Haven, Connecticut
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17
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Doersch KM, Newell-Rogers MK. The impact of quercetin on wound healing relates to changes in αV and β1 integrin expression. Exp Biol Med (Maywood) 2017; 242:1424-1431. [PMID: 28549404 PMCID: PMC5544166 DOI: 10.1177/1535370217712961] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 05/09/2017] [Indexed: 11/17/2022] Open
Abstract
Overly fibrotic wound healing can lead to excess scar formation, causing functional impairment and undesirable cosmetic results. However, there are few successful treatments available to prevent or remediate scars. This study sought to explore the molecular mechanisms by which quercetin, a naturally-occurring antifibrotic agent, diminishes scar formation. Using both mice and fibroblast cells, we examined quercetin's impact on fibrosis and the wound healing rate, and potential molecular mechanisms underlying the quercetin-mediated reduction of fibrosis. While cultured fibroblasts demonstrated normal growth in response to quercetin, quercetin increased surface αV integrin and decreased β1 integrin. These changes in surface integrin expression may impact factors that contribute to fibrosis including cell migration, proliferation, and extracellular matrix production. In both quercetin-treated and control mice, wounds healed in about 14 days. Masson's trichrome stain revealed diminished fibrosis at the wound site in quercetin-treated animals despite the normal healing rate, indicating the potential for better cosmetic results without delaying healing. An in vitro scratch wound model using cells plated on an artificial extracellular matrix demonstrated delayed closure following quercetin treatment. The extracellular matrix also ameliorated quercetin's effect on αV integrin. Thus, αV integrin recruitment in response to quercetin treatment may promote the quercetin-mediated decrease extracellular matrix because cells require less extracellular matrix to migrate into a wound. With added extracellular matrix, β1 integrin remained diminished in response to quercetin, indicating that quercetin's effect on β1 integrin expression is independent of extracellular matrix -mediated signaling and is likely driven by inhibition of the intracellular mechanisms driving β1 expression. These findings suggest that quercetin could alter the cells' interactions with the extracellular matrix through the regulation of integrin expression to promote a decrease in fibrosis. Furthermore, this work demonstrates that this naturally occurring and commercially available supplement could be used to improve wound healing by impacting integrin expression, leading to a lower extracellular matrix requirement to achieve healing. Impact statement Scar formation during wound healing can be problematic for patients but there are limited therapies available to treat or prevent excess fibrosis at wound sites. This work examines the impact of quercetin, a flavonoid that decreases fibrosis, on wound healing, and relates quercetin's effects to changes in integrin expression on the surface of fibroblast cells. To our knowledge, this is the first report that quercetin alters integrin expression or that this impact may be part of the mechanism by which quercetin prevents fibrosis. This work demonstrates that quercetin can be used to modulate integrin expression and that this effect may in turn reduce fibrosis during wound healing. Furthermore, this paper identifies the modulation of integrin expression as a possible therapeutic target in preventing scars. This information could be used to improve therapeutics to aid in the cosmetic and functional results following wound healing.
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Affiliation(s)
- Karen M Doersch
- MD/PhD Program, Texas A&M Health Science Center College of Medicine, Temple, TX 76508, USA
- Department of Surgery, Texas A&M Health Science Center College of Medicine, Temple, TX 76508, USA
| | - M Karen Newell-Rogers
- Department of Surgery, Texas A&M Health Science Center College of Medicine, Temple, TX 76508, USA
- Department of Surgery, Baylor Scott and White Health, Temple, TX 76508, USA
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18
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Epstein Shochet G, Brook E, Israeli-Shani L, Edelstein E, Shitrit D. Fibroblast paracrine TNF-α signaling elevates integrin A5 expression in idiopathic pulmonary fibrosis (IPF). Respir Res 2017. [PMID: 28629363 PMCID: PMC5477311 DOI: 10.1186/s12931-017-0606-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease with a poor prognosis. Inflammatory cytokines play a significant role in IPF pathology. However, the fibroblast itself is also believed to be the primary effector in IPF. We hypothesized that the fibroblasts themselves secrete pro-inflammatory cytokines that could propagate IPF by affecting normal neighboring cells. Thus, we explored the effects of IPF fibroblast derived media on normal fibroblast characteristics. Methods Primary IPF/normal tissue derived fibroblast cultures were established and their supernatants were collected (IPF/N-SN, respectively). These supernatants were added to normal fibroblasts. Cell death (caspase-3, western blot), proliferation, viability (WST-1), migration (scratch test) and cell detachment (crystal violet and fibronectin adhesion assays) were tested. 10 inflammatory cytokines were measured by ELISA-based quantitative array. Integrin α5 (ITGA5), pIκBα, p/total STAT3 levels were measured by western blot/IHC. TNF-α involvement was confirmed using Infliximab ®, anti-TNF-α mAb. Results The IPF-SN facilitated fibroblast cell detachment and reduced cell migration (p < 0.05). Nevertheless, these effects were reversed when cells were seeded on fibronectin. The exposure to the IPF-SN also elevated ITGA5 levels, the fibronectin receptor, in addition to NFκB pathway activation (pIκBα↑ 150%, p < 0.05). In accordance, IPF derived fibroblasts were found to express higher ITGA5 than the normal cells (44%↑, p < 0.05). ITGA5 was also expressed in the fibroblastic foci. The IPF-SN contained high TNF-α levels (3-fold, p < 0.05), and Infliximab pretreatment successfully reversed all the above observations. Conclusion We suggest a possible mechanism in which IPF fibroblast secreted TNF-α modifies neighboring fibroblast cell behavior.
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Affiliation(s)
- Gali Epstein Shochet
- Pulmonary Department, Meir Medical Center, 59 Tchernichovsky St, Kfar Saba, 44281, Israel.
| | - Elizabetha Brook
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Lilach Israeli-Shani
- Pulmonary Department, Meir Medical Center, 59 Tchernichovsky St, Kfar Saba, 44281, Israel
| | - Evgeny Edelstein
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Pathology Department, Meir Medical Center, 59 Tchernichovsky St, Kfar Saba, 44281, Israel
| | - David Shitrit
- Pulmonary Department, Meir Medical Center, 59 Tchernichovsky St, Kfar Saba, 44281, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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19
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Maycas M, Portolés MT, Matesanz MC, Buendía I, Linares J, Feito MJ, Arcos D, Vallet-Regí M, Plotkin LI, Esbrit P, Gortázar AR. High glucose alters the secretome of mechanically stimulated osteocyte-like cells affecting osteoclast precursor recruitment and differentiation. J Cell Physiol 2017; 232:3611-3621. [PMID: 28138960 DOI: 10.1002/jcp.25829] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 01/27/2017] [Accepted: 01/27/2017] [Indexed: 02/05/2023]
Abstract
Diabetes mellitus (DM) induces bone deterioration, while mechanical stimulation promotes osteocyte-driven bone formation. We aimed to evaluate the interaction of acute exposure (24 h) to high glucose (HG) with both the pro-survival effect conferred to osteocytic MLO-Y4 cells and osteoblastic MC3T3-E1 cells by mechanical stimulation and the interaction of these cells with osteoclast precursor RAW264.7 cells. We found that 24 h of HG (25 mM) pre-exposure prevented both cell survival and ERK and β-catenin nuclear translocation upon mechanical stimulation by fluid flow (FF) (10 min) in both MLO-Y4 and MC3T3-E1 cells. However, migration of RAW 264.7 cells was inhibited by MLO-Y4 cell-conditioned medium (CM), but not by MC3T3-E1 cell-CM, with HG or FF. This inhibitory effect was associated with consistent changes in VEGF, RANTES, MIP-1α, MIP-1β MCP-1, and GM-CSF in MLO-Y4 cell-CM. RAW264.7 proliferation was inhibited by MLO-Y4 CM under static or HG conditions, but it increased by FF-CM with or without HG. In addition, both FF and HG abrogated the capacity of RAW 264.7 cells to differentiate into osteoclasts, but in a different manner. Thus, HG-CM in static condition allowed formation of osteoclast-like cells, which were unable to resorb hydroxyapatite. In contrast, FF-CM prevented osteoclastogenesis even in HG condition. Moreover, HG did not affect basal RANKL or IL-6 secretion or their inhibition induced by FF in MLO-Y4 cells. In conclusion, this in vitro study demonstrates that HG exerts disparate effects on osteocyte mechanotransduction, and provides a novel mechanism by which DM disturbs skeletal metabolism through altered osteocyte-osteoclast communication.
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Affiliation(s)
- Marta Maycas
- Laboratorio de Metabolismo Mineral y Óseo, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, UAM, Madrid, Spain
| | - María Teresa Portolés
- Facultad de Ciencias Químicas, Departamento de Bioquímica y Biología Molecular I, UCM, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - María Concepción Matesanz
- Facultad de Ciencias Químicas, Departamento de Bioquímica y Biología Molecular I, UCM, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - Irene Buendía
- IMMA- Facultad de Medicina, Universidad San Pablo CEU, Boadilla del Monte, Madrid, Spain
| | - Javier Linares
- Facultad de Farmacia, Departamento de Química Inorgánica y Bioinorgánica, UCM, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre (i + 12) CIBER-BBN, Madrid, Spain
| | - María José Feito
- Facultad de Farmacia, Departamento de Química Inorgánica y Bioinorgánica, UCM, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre (i + 12) CIBER-BBN, Madrid, Spain
| | - Daniel Arcos
- Facultad de Farmacia, Departamento de Química Inorgánica y Bioinorgánica, UCM, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre (i + 12) CIBER-BBN, Madrid, Spain
| | - María Vallet-Regí
- Facultad de Farmacia, Departamento de Química Inorgánica y Bioinorgánica, UCM, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre (i + 12) CIBER-BBN, Madrid, Spain
| | - Lilian I Plotkin
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana.,Roudebush Veterans Administration Medical Center, Indianapolis, Indiana.,Indiana Center for Musculoskeletal Health, Indianapolis, Indiana
| | - Pedro Esbrit
- Laboratorio de Metabolismo Mineral y Óseo, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, UAM, Madrid, Spain
| | - Arancha R Gortázar
- IMMA- Facultad de Medicina, Universidad San Pablo CEU, Boadilla del Monte, Madrid, Spain
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20
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Arous C, Wehrle-Haller B. Role and impact of the extracellular matrix on integrin-mediated pancreatic β-cell functions. Biol Cell 2017; 109:223-237. [PMID: 28266044 DOI: 10.1111/boc.201600076] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 03/01/2017] [Accepted: 03/02/2017] [Indexed: 12/17/2022]
Abstract
Understanding the organisation and role of the extracellular matrix (ECM) in islets of Langerhans is critical for maintaining pancreatic β-cells, and to recognise and revert the physiopathology of diabetes. Indeed, integrin-mediated adhesion signalling in response to the pancreatic ECM plays crucial roles in β-cell survival and insulin secretion, two major functions, which are affected in diabetes. Here, we would like to present an update on the major components of the pancreatic ECM, their role during integrin-mediated cell-matrix adhesions and how they are affected during diabetes. To treat diabetes, a promising approach consists in replacing β-cells by transplantation. However, efficiency is low, because β-cells suffer of anoikis, due to enzymatic digestion of the pancreatic ECM, which affects the survival of insulin-secreting β-cells. The strategy of adding ECM components during transplantation, to reproduce the pancreatic microenvironment, is a challenging task, as many of the regulatory mechanisms that control ECM deposition and turnover are not sufficiently understood. A better comprehension of the impact of the ECM on the adhesion and integrin-dependent signalling in β-cells is primordial to improve the healthy state of islets to prevent the onset of diabetes as well as for enhancing the efficiency of the islet transplantation therapy.
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Affiliation(s)
- Caroline Arous
- Department of Cell Physiology and Metabolism, University of Geneva Medical Center, Geneva, Switzerland
| | - Bernhard Wehrle-Haller
- Department of Cell Physiology and Metabolism, University of Geneva Medical Center, Geneva, Switzerland
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