1
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Rayego-Mateos S, Marquez-Exposito L, Basantes P, Tejedor-Santamaria L, Sanz AB, Nguyen TQ, Goldschmeding R, Ortiz A, Ruiz-Ortega M. CCN2 Activates RIPK3, NLRP3 Inflammasome, and NRF2/Oxidative Pathways Linked to Kidney Inflammation. Antioxidants (Basel) 2023; 12:1541. [PMID: 37627536 PMCID: PMC10451214 DOI: 10.3390/antiox12081541] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/27/2023] [Accepted: 07/30/2023] [Indexed: 08/27/2023] Open
Abstract
Inflammation is a key characteristic of both acute and chronic kidney diseases. Preclinical data suggest the involvement of the NLRP3/Inflammasome, receptor-interacting protein kinase-3 (RIPK3), and NRF2/oxidative pathways in the regulation of kidney inflammation. Cellular communication network factor 2 (CCN2, also called CTGF in the past) is an established fibrotic biomarker and a well-known mediator of kidney damage. CCN2 was shown to be involved in kidney damage through the regulation of proinflammatory and profibrotic responses. However, to date, the potential role of the NLRP3/RIPK3/NRF2 pathways in CCN2 actions has not been evaluated. In experimental acute kidney injury induced with folic acid in mice, CCN2 deficiency diminished renal inflammatory cell infiltration (monocytes/macrophages and T lymphocytes) as well as the upregulation of proinflammatory genes and the activation of NLRP3/Inflammasome-related components and specific cytokine products, such as IL-1β. Moreover, the NRF2/oxidative pathway was deregulated. Systemic administration of CCN2 to C57BL/6 mice induced kidney immune cell infiltration and activated the NLRP3 pathway. RIPK3 deficiency diminished the CCN2-induced renal upregulation of proinflammatory mediators and prevented NLRP3 modulation. These data suggest that CCN2 plays a fundamental role in sterile inflammation and acute kidney injury by modulating the RIKP3/NLRP3/NRF2 inflammatory pathways.
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Affiliation(s)
- Sandra Rayego-Mateos
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma Madrid, 28040 Madrid, Spain; (S.R.-M.); (L.M.-E.); (P.B.); (L.T.-S.)
- Ricor2040, 28029 Madrid, Spain
| | - Laura Marquez-Exposito
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma Madrid, 28040 Madrid, Spain; (S.R.-M.); (L.M.-E.); (P.B.); (L.T.-S.)
- Ricor2040, 28029 Madrid, Spain
| | - Pamela Basantes
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma Madrid, 28040 Madrid, Spain; (S.R.-M.); (L.M.-E.); (P.B.); (L.T.-S.)
- Ricor2040, 28029 Madrid, Spain
| | - Lucia Tejedor-Santamaria
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma Madrid, 28040 Madrid, Spain; (S.R.-M.); (L.M.-E.); (P.B.); (L.T.-S.)
- Ricor2040, 28029 Madrid, Spain
| | - Ana B. Sanz
- Division of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain; (A.B.S.); (A.O.)
| | - Tri Q. Nguyen
- Department of Pathology, University Medical Center Utrecht, H04.312, Heidelberglaan 100, 3584 Utrecht, The Netherlands; (T.Q.N.); (R.G.)
| | - Roel Goldschmeding
- Department of Pathology, University Medical Center Utrecht, H04.312, Heidelberglaan 100, 3584 Utrecht, The Netherlands; (T.Q.N.); (R.G.)
| | - Alberto Ortiz
- Division of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain; (A.B.S.); (A.O.)
| | - Marta Ruiz-Ortega
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma Madrid, 28040 Madrid, Spain; (S.R.-M.); (L.M.-E.); (P.B.); (L.T.-S.)
- Ricor2040, 28029 Madrid, Spain
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2
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Macrophage polarity and wound age determination. Sci Rep 2022; 12:20327. [PMID: 36434083 PMCID: PMC9700750 DOI: 10.1038/s41598-022-24577-9] [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: 08/15/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022] Open
Abstract
We investigated the dynamics of the gene expression of M1 and M2 macrophage markers during skin wound healing in mice. Expression of M1-macrophage markers, such as Il12a, Tnf, Il6, Il1b, and Nos2 was upregulated after wounding and peaked at 1 or 3 days after injury, and that of M2-macrophage markers such as Mrc1, Cd163, Ccl17, Arg, and Tgfb1, peaked at 6 days after injury. Consistent with these findings, using triple-color immunofluorescence analysis revealed that F4/80+CD80+ M1 macrophages were more abundant than F4/80+CD206+ M2 macrophages on day 3 in mouse wound specimens, and that M2 macrophages were prominently detected in day 6 wounds. For application in forensic practice, we examined macrophage polarization using human wound specimens. The average ratios of CD68+iNOS+ M1 macrophages to CD68+CD163+ M2 macrophages (M1/M2 ratios) were greater than 2.5 for the wounds aged 2-5 days. Out of 11 wounds aged 1-5 days, five samples had the M1/M2 ratios of > 3.0. These observations propose that the M1/M2 ratios of 3.0 would indicate a wound age of 1-5 days as the forensic opinion. This study showed that M1 and M2 macrophages in human skin wound might be a promising marker for wound age determination.
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3
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Kubota S, Kawata K, Hattori T, Nishida T. Molecular and Genetic Interactions between CCN2 and CCN3 behind Their Yin-Yang Collaboration. Int J Mol Sci 2022; 23:ijms23115887. [PMID: 35682564 PMCID: PMC9180607 DOI: 10.3390/ijms23115887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 12/15/2022] Open
Abstract
Cellular communication network factor (CCN) 2 and 3 are the members of the CCN family that conduct the harmonized development of a variety of tissues and organs under interaction with multiple biomolecules in the microenvironment. Despite their striking structural similarities, these two members show contrastive molecular functions as well as temporospatial emergence in living tissues. Typically, CCN2 promotes cell growth, whereas CCN3 restrains it. Where CCN2 is produced, CCN3 disappears. Nevertheless, these two proteins collaborate together to execute their mission in a yin–yang fashion. The apparent functional counteractions of CCN2 and CCN3 can be ascribed to their direct molecular interaction and interference over the cofactors that are shared by the two. Recent studies have revealed the mutual negative regulation systems between CCN2 and CCN3. Moreover, the simultaneous and bidirectional regulatory system of CCN2 and CCN3 is also being clarified. It is of particular note that these regulations were found to be closely associated with glycolysis, a fundamental procedure of energy metabolism. Here, the molecular interplay and metabolic gene regulation that enable the yin–yang collaboration of CCN2 and CCN3 typically found in cartilage development/regeneration and fibrosis are described.
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4
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Interplay between extracellular matrix components and cellular and molecular mechanisms in kidney fibrosis. Clin Sci (Lond) 2021; 135:1999-2029. [PMID: 34427291 DOI: 10.1042/cs20201016] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 12/13/2022]
Abstract
Chronic kidney disease (CKD) is characterized by pathological accumulation of extracellular matrix (ECM) proteins in renal structures. Tubulointerstitial fibrosis is observed in glomerular diseases as well as in the regeneration failure of acute kidney injury (AKI). Therefore, finding antifibrotic therapies comprises an intensive research field in Nephrology. Nowadays, ECM is not only considered as a cellular scaffold, but also exerts important cellular functions. In this review, we describe the cellular and molecular mechanisms involved in kidney fibrosis, paying particular attention to ECM components, profibrotic factors and cell-matrix interactions. In response to kidney damage, activation of glomerular and/or tubular cells may induce aberrant phenotypes characterized by overproduction of proinflammatory and profibrotic factors, and thus contribute to CKD progression. Among ECM components, matricellular proteins can regulate cell-ECM interactions, as well as cellular phenotype changes. Regarding kidney fibrosis, one of the most studied matricellular proteins is cellular communication network-2 (CCN2), also called connective tissue growth factor (CTGF), currently considered as a fibrotic marker and a potential therapeutic target. Integrins connect the ECM proteins to the actin cytoskeleton and several downstream signaling pathways that enable cells to respond to external stimuli in a coordinated manner and maintain optimal tissue stiffness. In kidney fibrosis, there is an increase in ECM deposition, lower ECM degradation and ECM proteins cross-linking, leading to an alteration in the tissue mechanical properties and their responses to injurious stimuli. A better understanding of these complex cellular and molecular events could help us to improve the antifibrotic therapies for CKD.
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5
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Rebolledo DL, Lipson KE, Brandan E. Driving fibrosis in neuromuscular diseases: Role and regulation of Connective tissue growth factor (CCN2/CTGF). Matrix Biol Plus 2021; 11:100059. [PMID: 34435178 PMCID: PMC8377001 DOI: 10.1016/j.mbplus.2021.100059] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 02/07/2023] Open
Abstract
Connective tissue growth factor or cellular communication network 2 (CCN2/CTGF) is a matricellular protein member of the CCN family involved in several crucial biological processes. In skeletal muscle, CCN2/CTGF abundance is elevated in human muscle biopsies and/or animal models for diverse neuromuscular pathologies, including muscular dystrophies, neurodegenerative disorders, muscle denervation, and muscle overuse. In this context, CCN2/CTGF is deeply involved in extracellular matrix (ECM) modulation, acting as a strong pro-fibrotic factor that promotes excessive ECM accumulation. Reducing CCN2/CTGF levels or biological activity in pathological conditions can decrease fibrosis, improve muscle architecture and function. In this work, we summarize information about the role of CCN2/CTGF in fibrosis associated with neuromuscular pathologies and the mechanisms and signaling pathways that regulate their expression in skeletal muscle.
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Affiliation(s)
- Daniela L Rebolledo
- Centro de Envejecimiento y Regeneración, CARE Chile UC, Chile.,Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Punta Arenas, Chile
| | | | - Enrique Brandan
- Centro de Envejecimiento y Regeneración, CARE Chile UC, Chile.,Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile.,Fundación Ciencia y Vida, Santiago, Chile
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6
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Zhang SM, Wei CY, Wang Q, Wang L, Lu L, Qi FZ. M2-polarized macrophages mediate wound healing by regulating connective tissue growth factor via AKT, ERK1/2, and STAT3 signaling pathways. Mol Biol Rep 2021; 48:6443-6456. [PMID: 34398425 DOI: 10.1007/s11033-021-06646-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/11/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Timely and sufficient M1 recruitment and M2 polarization are necessary for fibrosis during wound healing. The mechanism of how M2 mediates wound healing is worth exploring. Abnormally up-regulated connective tissue growth factor (CTGF) influences multiple organ fibrosis, including cardiac, pulmonary, hepatic, renal, and cutaneous fibrosis. Previous studies reported that M2 contributed to hepatic and renal fibrosis by secreting CTGF. It is worth discussing if M2 regulates fibrosis through secreting CTGF in wound healing. METHODS AND RESULTS We established the murine wound model and inhibited macrophages during proliferation phase with clodronate liposomes in vivo. Macrophages depletion led to down-regulation of wound healing rates, collagen deposition, as well as expression of collagen 1/3 and Ki67. M2 was induced by interleukin-4 (IL-4) and measured by flow cytometry in vitro. Secreted pro-fibrotic and anti-fibrotic factors were tested by enzyme-linked immunosorbent assay (ELISA). M2 was polarized, which producing more CTGF, transforming growth factor-beta1 (TGF-β1), and IL-6, as well as less tumor necrosis factor-α (TNF-α) and IL-10. M2 CTGF gene was blocked using siCTGF. Effects of M2 on fibroblasts activities were detected by cell counting kit 8 (CCK8) and cellular wound healing assay. Expressions of related signaling pathway were assessed by western blotting. Blockade of CTGF in M2 deactivated fibroblasts proliferation and migration by regulating AKT, ERK1/2, and STAT3 pathway. Recombinant CTGF restored these effects. CONCLUSIONS Our research, for the first time, indicated that M2 promoted wound healing by secreting CTGF, which further mediating proliferation and migration of fibroblasts via AKT, ERK1/2, and STAT3 pathway.
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Affiliation(s)
- Si-Min Zhang
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Chuan-Yuan Wei
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Qiang Wang
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Lu Wang
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Lu Lu
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Fa-Zhi Qi
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China.
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7
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Rebolledo DL, Acuña MJ, Brandan E. Role of Matricellular CCN Proteins in Skeletal Muscle: Focus on CCN2/CTGF and Its Regulation by Vasoactive Peptides. Int J Mol Sci 2021; 22:5234. [PMID: 34063397 PMCID: PMC8156781 DOI: 10.3390/ijms22105234] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/28/2021] [Accepted: 05/12/2021] [Indexed: 02/08/2023] Open
Abstract
The Cellular Communication Network (CCN) family of matricellular proteins comprises six proteins that share conserved structural features and play numerous biological roles. These proteins can interact with several receptors or soluble proteins, regulating cell signaling pathways in various tissues under physiological and pathological conditions. In the skeletal muscle of mammals, most of the six CCN family members are expressed during embryonic development or in adulthood. Their roles during the adult stage are related to the regulation of muscle mass and regeneration, maintaining vascularization, and the modulation of skeletal muscle fibrosis. This work reviews the CCNs proteins' role in skeletal muscle physiology and disease, focusing on skeletal muscle fibrosis and its regulation by Connective Tissue Growth factor (CCN2/CTGF). Furthermore, we review evidence on the modulation of fibrosis and CCN2/CTGF by the renin-angiotensin system and the kallikrein-kinin system of vasoactive peptides.
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Affiliation(s)
- Daniela L. Rebolledo
- Centro de Envejecimiento y Regeneración, CARE Chile UC, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile;
- Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas 6213515, Chile
| | - María José Acuña
- Centro de Envejecimiento y Regeneración, CARE Chile UC, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile;
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O Higgins, Santiago 8370854, Chile
| | - Enrique Brandan
- Centro de Envejecimiento y Regeneración, CARE Chile UC, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile;
- Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
- Fundación Ciencia & Vida, Santiago 7810000, Chile
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8
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Blokland K, Pouwels S, Schuliga M, Knight D, Burgess J. Regulation of cellular senescence by extracellular matrix during chronic fibrotic diseases. Clin Sci (Lond) 2020; 134:2681-2706. [PMID: 33084883 PMCID: PMC7578566 DOI: 10.1042/cs20190893] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 02/07/2023]
Abstract
The extracellular matrix (ECM) is a complex network of macromolecules surrounding cells providing structural support and stability to tissues. The understanding of the ECM and the diverse roles it plays in development, homoeostasis and injury have greatly advanced in the last three decades. The ECM is crucial for maintaining tissue homoeostasis but also many pathological conditions arise from aberrant matrix remodelling during ageing. Ageing is characterised as functional decline of tissue over time ultimately leading to tissue dysfunction, and is a risk factor in many diseases including cardiovascular disease, diabetes, cancer, dementia, glaucoma, chronic obstructive pulmonary disease (COPD) and fibrosis. ECM changes are recognised as a major driver of aberrant cell responses. Mesenchymal cells in aged tissue show signs of growth arrest and resistance to apoptosis, which are indicative of cellular senescence. It was recently postulated that cellular senescence contributes to the pathogenesis of chronic fibrotic diseases in the heart, kidney, liver and lung. Senescent cells negatively impact tissue regeneration while creating a pro-inflammatory environment as part of the senescence-associated secretory phenotype (SASP) favouring disease progression. In this review, we explore and summarise the current knowledge around how aberrant ECM potentially influences the senescent phenotype in chronic fibrotic diseases. Lastly, we will explore the possibility for interventions in the ECM-senescence regulatory pathways for therapeutic potential in chronic fibrotic diseases.
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Affiliation(s)
- Kaj E.C. Blokland
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
- University of Newcastle, School of Biomedical Sciences and Pharmacy, Callaghan, NSW, Australia
- National Health and Medical Research Council Centre of Research Excellence in Pulmonary Fibrosis, Sydney, NSW, Australia
| | - Simon D. Pouwels
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
- Department of Lung Diseases, University Medical Center Groningen, Groningen, The Netherlands
| | - Michael Schuliga
- University of Newcastle, School of Biomedical Sciences and Pharmacy, Callaghan, NSW, Australia
| | - Darryl A. Knight
- University of Newcastle, School of Biomedical Sciences and Pharmacy, Callaghan, NSW, Australia
- National Health and Medical Research Council Centre of Research Excellence in Pulmonary Fibrosis, Sydney, NSW, Australia
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Providence Health Care Research Institute, Vancouver, BC, Canada
| | - Janette K. Burgess
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
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9
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Quesnel K, Shi-Wen X, Hutchenreuther J, Xiao Y, Liu S, Peidl A, Naskar D, Siqueira WL, O'Gorman DB, Hinz B, Stratton RJ, Leask A. CCN1 expression by fibroblasts is required for bleomycin-induced skin fibrosis. Matrix Biol Plus 2019; 3:100009. [PMID: 33543008 PMCID: PMC7852207 DOI: 10.1016/j.mbplus.2019.100009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/04/2019] [Accepted: 06/29/2019] [Indexed: 01/16/2023] Open
Abstract
The microenvironment contributes to the excessive connective tissue deposition that characterizes fibrosis. Members of the CCN family of matricellular proteins are secreted by fibroblasts into the fibrotic microenvironment; however, the role of endogenous CCN1 in skin fibrosis is unknown. Mice harboring a fibroblast-specific deletion for CCN1 were used to assess if CCN1 contributes to dermal homeostasis, wound healing, and skin fibrosis. Mice with a fibroblast-specific CCN1 deletion showed progressive skin thinning and reduced accumulation of type I collagen; however, the overall mechanical property of skin (Young's modulus) was not significantly reduced. Real time-polymerase chain reaction analysis revealed that CCN1-deficient skin displayed reduced expression of mRNAs encoding enzymes that promote collagen stability (including prolyl-4-hydroxylase and PLOD2), although expression of COL1A1 mRNA was unaltered. CCN1-deficent skin showed reduced hydroxyproline levels. Electron microscopy revealed that collagen fibers were disorganized in CCN1-deficient skin. CCN1-deficient mice were resistant to bleomycin-induced skin fibrosis, as visualized by reduced collagen accumulation and skin thickness suggesting that deposition/accumulation of collagen is impaired in the absence of CCN1. Conversely, CCN1-deficient mice showed unaltered wound closure kinetics, suggesting de novo collagen production in response to injury did not require CCN1. In response to either wounding or bleomycin, induction of α-smooth muscle actin-positive myofibroblasts was unaffected by loss of CCN1. CCN1 protein was overexpressed by dermal fibroblasts isolated from lesional (i.e., fibrotic) areas of patients with early onset diffuse scleroderma. Thus, CCN1 expression by fibroblasts, being essential for skin fibrosis, is a viable anti-fibrotic target. The role of endogenous CCN1 in skin biology is largely unknown Fibroblast-specific deletion CCN1 causes thinner skin and misaligned collagen CCN1-deficient mice were resistant to bleomycin-induced skin fibrosis Wound healing closure kinetics was unaffected by loss of CCN1 CCN1 may be as a target for anti-fibrotic therapy
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Affiliation(s)
- Katherine Quesnel
- Department of Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Xu Shi-Wen
- Centre for Rheumatology, University College London (Royal Free Campus), London, NW3 2PF, UK
| | - James Hutchenreuther
- Department of Physiology and Pharmacology, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Yizhi Xiao
- Department of Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Shangxi Liu
- Department of Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Alexander Peidl
- Department of Physiology and Pharmacology, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Deboki Naskar
- Laboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, ON, M5G 1G6, Canada
| | - Walter L Siqueira
- Department of Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - David B O'Gorman
- Roth McFarlane Hand and Upper Limb Centre, Lawson Research Institute, London, ON, N6A 4V2, Canada.,Departments of Biochemistry and Surgery, University of Western Ontario, London, N6A 5C1, ON, N6A 5C1, Canada
| | - Boris Hinz
- Laboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, ON, M5G 1G6, Canada
| | - Richard J Stratton
- Centre for Rheumatology, University College London (Royal Free Campus), London, NW3 2PF, UK
| | - Andrew Leask
- Department of Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
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10
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Peidl A, Perbal B, Leask A. Yin/Yang expression of CCN family members: Transforming growth factor beta 1, via ALK5/FAK/MEK, induces CCN1 and CCN2, yet suppresses CCN3, expression in human dermal fibroblasts. PLoS One 2019; 14:e0218178. [PMID: 31170244 PMCID: PMC6553774 DOI: 10.1371/journal.pone.0218178] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 05/28/2019] [Indexed: 12/16/2022] Open
Abstract
The role of the microenvironment in driving connective tissue disease is being increasingly appreciated. Matricellular proteins of the CCN family are signaling modifiers that are secreted by cells into the extracellular matrix microenvironment where they have profound, context-dependent effects on organ development, homeostasis and disease. Indeed, CCN proteins are emergent targets for therapeutic intervention. Recent evidence suggests that, in vivo, CCN3 has effects opposing CCN2. Moreover, when CCN3 expression is high, CCN2 expression is low. That is, they appear to be regulated in a yin/yang fashion, leading to the hypothesis that the CCN2:CCN3 ratio is important to control tissue homeostasis. To begin to test the hypothesis that alterations in CCN2:CCN3 expression might be important in skin biology in vivo, we evaluated the relative ex vivo effects of the profibrotic protein TGFbeta1 on dermal fibroblasts on protein and RNA expression of CCN3 and CCN2, as well as the related protein CCN1. We also used signal transduction inhibitors to begin to identify the signal transduction pathways controlling the ability of fibroblasts to respond to TGFbeta1. As anticipated, CCN1 and CCN2 protein and mRNA were induced by TGFbeta1 in human dermal fibroblasts. This induction was blocked by TAK1, FAK, YAP1 and MEK inhibition. Conversely, TGFbeta1 suppressed CCN3 mRNA expression in a fashion insensitive to FAK, MEK, TAK1 or YAP1 inhibition. Unexpectedly, CCN3 protein was not detected in human dermal fibroblasts basally. These data suggest that, in dermal fibroblasts, the profibrotic protein TGFbeta1 has a divergent effect on CCN3 relative to CCN2 and CCN1, both at the mRNA and protein level. Given that the major source in skin in vivo of CCN proteins are fibroblasts, our data are consistent that alterations in CCN2/CCN1: CCN3 ratios in response to profibrotic agents such as TGFbeta1 may play a role in connective tissue pathologies including fibrosis.
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Affiliation(s)
- Alexander Peidl
- Department of Physiology and Pharmacology, University of Western Ontario, London, ON, Canada
| | | | - Andrew Leask
- Department of Dentistry, University of Western Ontario, London, ON, Canada
- * E-mail:
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11
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Fernández-Simón E, Carrasco-Rozas A, Gallardo E, Figueroa-Bonaparte S, Belmonte I, Pedrosa I, Montiel E, Suárez-Calvet X, Alonso-Pérez J, Segovia S, Nuñez-Peralta C, Llauger J, Mayos M, Illa I, Díaz-Manera J. PDGF-BB serum levels are decreased in adult onset Pompe patients. Sci Rep 2019; 9:2139. [PMID: 30765719 PMCID: PMC6375999 DOI: 10.1038/s41598-018-38025-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 12/19/2018] [Indexed: 12/19/2022] Open
Abstract
Adult onset Pompe disease is a genetic disorder characterized by slowly progressive skeletal and respiratory muscle weakness. Symptomatic patients are treated with enzymatic replacement therapy with human recombinant alfa glucosidase. Motor functional tests and spirometry are commonly used to follow patients up. However, a serological biomarker that correlates with the progression of the disease could improve follow-up. We studied serum concentrations of TGFβ, PDGF-BB, PDGF-AA and CTGF growth factors in 37 adult onset Pompe patients and 45 controls. Moreover, all patients performed several muscle function tests, conventional spirometry, and quantitative muscle MRI using 3-point Dixon. We observed a statistically significant change in the serum concentration of each growth factor in patients compared to controls. However, only PDGF-BB levels were able to differentiate between asymptomatic and symptomatic patients, suggesting its potential role in the follow-up of asymptomatic patients. Moreover, our results point to a dysregulation of muscle regeneration as an additional pathomechanism of Pompe disease.
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Affiliation(s)
- Esther Fernández-Simón
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ana Carrasco-Rozas
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Eduard Gallardo
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación en Red en Enfermedades Raras (CIBERER), Barcelona, Spain
| | - Sebastián Figueroa-Bonaparte
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Izaskun Belmonte
- Rehabilitation and physiotherapy department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Irene Pedrosa
- Rehabilitation and physiotherapy department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Elena Montiel
- Rehabilitation and physiotherapy department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Xavier Suárez-Calvet
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación en Red en Enfermedades Raras (CIBERER), Barcelona, Spain
| | - Jorge Alonso-Pérez
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Sonia Segovia
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación en Red en Enfermedades Raras (CIBERER), Barcelona, Spain
| | - Claudia Nuñez-Peralta
- Radiology department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jaume Llauger
- Radiology department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mercedes Mayos
- Respiratory department. Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Isabel Illa
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación en Red en Enfermedades Raras (CIBERER), Barcelona, Spain
| | | | - Jordi Díaz-Manera
- Neuromuscular Disorders Unit. Neurology Department Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, Spain.
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12
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Petrosino JM, Leask A, Accornero F. Genetic manipulation of CCN2/CTGF unveils cell-specific ECM-remodeling effects in injured skeletal muscle. FASEB J 2019; 33:2047-2057. [PMID: 30216109 PMCID: PMC6338641 DOI: 10.1096/fj.201800622rr] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 08/20/2018] [Indexed: 01/03/2023]
Abstract
In skeletal muscle, extracellular matrix (ECM) remodeling can either support the complete regeneration of injured muscle or facilitate pathologic fibrosis and muscle degeneration. Muscular dystrophy (MD) is a group of genetic disorders that results in a progressive decline in muscle function and is characterized by the abundant deposition of fibrotic tissue. Unlike acute injury, where ECM remodeling is acute and transient, in MD, remodeling persists until fibrosis obstructs the regenerative efforts of diseased muscles. Thus, understanding how ECM is deposited and organized is critical in the context of muscle repair. Connective tissue growth factor (CTGF or CCN2) is a matricellular protein expressed by multiple cell types in response to tissue injury. Although used as a general marker of fibrosis, the cell type-dependent role of CTGF in dystrophic muscle has not been elucidated. To address this question, a conditional Ctgf myofiber and fibroblast-knockout mouse lines were generated and crossed to a dystrophic background. Only myofiber-selective inhibition of CTGF protected δ-sarcoglycan-null ( Sgcd-/-) mice from the dystrophic phenotype, and it did so by affecting collagen organization in a way that allowed for improvements in dystrophic muscle regeneration and function. To confirm that muscle-specific CTGF functions to mediate collagen organization, we generated mice with transgenic muscle-specific overexpression of CTGF. Again, genetic modulation of CTGF in muscle was not sufficient to drive fibrosis, but altered collagen content and organization after injury. Our results show that the myofibers are critical mediators of the deleterious effects associated with CTGF in MD and acutely injured skeletal muscle.-Petrosino, J. M., Leask, A., Accornero, F. Genetic manipulation of CCN2/CTGF unveils cell-specific ECM-remodeling effects in injured skeletal muscle.
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Affiliation(s)
- Jennifer M. Petrosino
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Andrew Leask
- Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Federica Accornero
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
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13
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Yin Q, Liu H. Connective Tissue Growth Factor and Renal Fibrosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1165:365-380. [PMID: 31399974 DOI: 10.1007/978-981-13-8871-2_17] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
CCN2, also known as connective tissue growth factor (CTGF), is one of important members of the CCN family. Generally, CTGF expresses at low levels in normal adult kidney, while increases significantly in various kidney diseases, playing an important role in the development of glomerular and tubulointerstitial fibrosis in progressive kidney diseases. CTGF is involved in cell proliferation, migration, and differentiation and can promote the progression of fibrosis directly or act as a downstream factor of transforming growth factor β (TGF-β). CTGF also regulates the expression and activity of TGF-β and bone morphogenetic protein (BMP), thereby playing an important role in the process of kidney repair. In patients with chronic kidney disease, elevated plasma CTGF is an independent risk factor for progression to end-stage renal disease and is closely related to glomerular filtration rate. Therefore, CTGF may be a potential biological marker of kidney fibrosis, but more clinical studies are needed to confirm this view. This section briefly describes the role and molecular mechanisms of CTGF in renal fibrosis and also discusses the potential value of targeting CCN2 for the treatment of renal fibrosis.
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Affiliation(s)
- Qing Yin
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, China
| | - Hong Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, China.
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14
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Walraven M, Hinz B. Therapeutic approaches to control tissue repair and fibrosis: Extracellular matrix as a game changer. Matrix Biol 2018; 71-72:205-224. [DOI: 10.1016/j.matbio.2018.02.020] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/22/2018] [Accepted: 02/23/2018] [Indexed: 02/08/2023]
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15
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Tang X, Muhammad H, McLean C, Miotla-Zarebska J, Fleming J, Didangelos A, Önnerfjord P, Leask A, Saklatvala J, Vincent TL. Connective tissue growth factor contributes to joint homeostasis and osteoarthritis severity by controlling the matrix sequestration and activation of latent TGFβ. Ann Rheum Dis 2018; 77:1372-1380. [PMID: 29925506 PMCID: PMC6104679 DOI: 10.1136/annrheumdis-2018-212964] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 05/14/2018] [Accepted: 05/26/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVES One mechanism by which cartilage responds to mechanical load is by releasing heparin-bound growth factors from the pericellular matrix (PCM). By proteomic analysis of the PCM, we identified connective tissue growth factor (CTGF) and here investigate its function and mechanism of action. METHODS Recombinant CTGF (rCTGF) was used to stimulate human chondrocytes for microarray analysis. Endogenous CTGF was investigated by in vitro binding assays and confocal microscopy. Its release from cut cartilage (injury CM) was analysed by Western blot under reducing and non-reducing conditions. A postnatal, conditional CtgfcKO mouse was generated for cartilage injury experiments and to explore the course of osteoarthritis (OA) by destabilisation of the medial meniscus. siRNA knockdown was performed on isolated human chondrocytes. RESULTS The biological responses of rCTGF were TGFβ dependent. CTGF displaced latent TGFβ from cartilage and both were released on cartilage injury. CTGF and latent TGFβ migrated as a single high molecular weight band under non-reducing conditions, suggesting that they were in a covalent (disulfide) complex. This was confirmed by immunoprecipitation. Using CtgfcKO mice, CTGF was required for sequestration of latent TGFβ in the matrix and activation of the latent complex at the cell surface through TGFβR3. In vivo deletion of CTGF increased the thickness of the articular cartilage and protected mice from OA. CONCLUSIONS CTGF is a latent TGFβ binding protein that controls the matrix sequestration and activation of TGFβ in cartilage. Deletion of CTGF in vivo caused a paradoxical increase in Smad2 phosphorylation resulting in thicker cartilage that was protected from OA.
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Affiliation(s)
- Xiaodi Tang
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Hayat Muhammad
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Celia McLean
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | - Jacob Fleming
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | | | - Andrew Leask
- Department of Dentistry, University of Western Ontario, London, Ontario, Canada
| | | | - Tonia L Vincent
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
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16
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Abstract
The extracellular matrix (ECM) has central roles in tissue integrity and remodeling throughout the life span of animals. While collagens are the most abundant structural components of ECM in most tissues, tissue-specific molecular complexity is contributed by ECM glycoproteins. The matricellular glycoproteins are categorized primarily according to functional criteria and represented predominantly by the thrombospondin, tenascin, SPARC/osteonectin, and CCN families. These proteins do not self-assemble into ECM fibrils; nevertheless, they shape ECM properties through interactions with structural ECM proteins, growth factors, and cells. Matricellular proteins also promote cell migration or morphological changes through adhesion-modulating or counter-adhesive actions on cell-ECM adhesions, intracellular signaling, and the actin cytoskeleton. Typically, matricellular proteins are most highly expressed during embryonic development. In adult tissues, expression is more limited unless activated by cues for dynamic tissue remodeling and cell motility, such as occur during inflammatory response and wound repair. Many insights in the complex roles of matricellular proteins have been obtained from studies of gene knockout mice. However, with the exception of chordate-specific tenascins, these are highly conserved proteins that are encoded in many animal phyla. This review will consider the increasing body of research on matricellular proteins in nonmammalian animal models. These models provide better access to the very earliest stages of embryonic development and opportunities to study biological processes such as limb and organ regeneration. In aggregate, this research is expanding concepts of the functions and mechanisms of action of matricellular proteins.
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Affiliation(s)
- Josephine C Adams
- School of Biochemistry, University of Bristol, Bristol, United Kingdom.
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17
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The matricellular protein CCN1 in tissue injury repair. J Cell Commun Signal 2018; 12:273-279. [PMID: 29357009 DOI: 10.1007/s12079-018-0450-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 01/10/2018] [Indexed: 12/12/2022] Open
Abstract
The expression of Ccn1 (Cyr61) is essential for cardiovascular development during embryogenesis, whereas in adulthood it is associated with inflammation, wound healing, injury repair, and related pathologies including fibrosis and cancer. Recent studies have found that CCN1 plays a critical role in promoting wound healing and tissue repair. Mechanistically, CCN1 functions through direct interaction with specific integrin receptors expressed in various cell types in the wound tissue microenvironment to coordinate diverse cellular functions for repair. Here we briefly summarize the current knowledge on the functions of CCN1 in tissue injury repair and discuss pertinent unanswered questions.
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18
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Takigawa M. An early history of CCN2/CTGF research: the road to CCN2 via hcs24, ctgf, ecogenin, and regenerin. J Cell Commun Signal 2017; 12:253-264. [PMID: 29076115 DOI: 10.1007/s12079-017-0414-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 09/27/2017] [Indexed: 02/06/2023] Open
Abstract
The principal aim of this historical review is to present the processes by which the different aspects of CCN2/CTGF/Hcs24 were discovered by different groups and how much CCN2/CTGF, by being integrated into CCN family, has contributed to the establishment of the basic concepts regarding the role and functions of this new class of proteins. This review should be particularly useful to new investigators who have recently entered this exciting field of study and also provides a good opportunity to acknowledge the input of those individuals who participated in the development of this scientific field.
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Affiliation(s)
- Masaharu Takigawa
- Advanced Research Center for Oral and Craniofacial Sciences (ARCOCS), Okayama University Dental School/Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1, Shikata-cho, Okayama, 700-8525, Japan.
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19
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Perbal A, Perbal B. The CCN family of proteins: a 25th anniversary picture. J Cell Commun Signal 2016; 10:177-190. [PMID: 27581423 DOI: 10.1007/s12079-016-0340-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 07/20/2016] [Indexed: 11/30/2022] Open
Abstract
The CCN family of proteins is composed of six members, which are now well recognized as major players in fundamental biological processes. The first three CCN proteins discovered were designated CYR61, CTGF, and NOV because of the context in which they were identified. Both CYR61 and CTGF were discovered in normal cells, whereas NOV was identified in tumors. Soon after their discovery, it was established that they shared important and unique structural features and distinct biological properties. Based on these structural considerations, the three proteins were proposed to belong to a family that was designated CCN by P. Bork. Hence the CCN1, CCN2 and CCN3 acronyms. The family grew to six members a few years later with the description of three proteins WISP-1, WISP-2 and WISP-3 (CCN4, CCN5 and CCN6), that shared the same tetramodular and conserved structural features. With the functions of the CCN proteins being uncovered, this raised a nomenclature problem. A scientific committee convened in Saint Malo (France) proposed to apply the CCN nomenclature to the six members of the family. Although the unified nomenclature was proposed in order to avoid serious misconceptions and lack of precision associated with the use of the old acronyms, the acceptance of the new acronyms has taken time. In order to evaluate how the use of disparate nomenclatures have had an impact on the CCN protein field, we conducted a survey of the articles that have been published in this area since the discovery of the first CCN proteins and inception of the field. We report in this manuscript the confusion and serious deleterious scientific consequences that have stemmed from a disorganized usage of several unrelated acronyms. The conclusions that we have reached call for a unification that needs to overcome personal habits and feelings. Instead of allowing the CCN field to fully crystalize and gain the recognition that it deserves the usage of many different acronyms represents a danger that everyone must fight against in order to avoid its deliquescence. We hope that the considerations discussed in the present article will encourage all authors working in the CCN field to work jointly and succeed in building a strong and coherent CCN scientific community that will benefit all of us.
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Affiliation(s)
| | - Bernard Perbal
- Université Côte d'Azur, CNRS, GREDEG, France and International CCN Society, Paris, France.
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20
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Córdova G, Rochard A, Riquelme-Guzmán C, Cofré C, Scherman D, Bigey P, Brandan E. SMAD3 and SP1/SP3 Transcription Factors Collaborate to Regulate Connective Tissue Growth Factor Gene Expression in Myoblasts in Response to Transforming Growth Factor β. J Cell Biochem 2015; 116:1880-7. [DOI: 10.1002/jcb.25143] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 02/17/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Gonzalo Córdova
- Laboratorio de Diferenciación Celular y Patología; Centro de Regulación Celular y Patología (CRCP); Departamento de Biología Celular y Molecular; Pontificia Universidad Católica de Chile; Santiago Chile
- Unité de Technologie Chimique et Biologique pour la Santé; CNRS, UMR8258; Paris F-75006 France
- INSERM U1022; Université Paris Descartes; ENSCP Chimie-ParisTech; Paris France
| | - Alice Rochard
- Unité de Technologie Chimique et Biologique pour la Santé; CNRS, UMR8258; Paris F-75006 France
- INSERM U1022; Université Paris Descartes; ENSCP Chimie-ParisTech; Paris France
| | - Camilo Riquelme-Guzmán
- Laboratorio de Diferenciación Celular y Patología; Centro de Regulación Celular y Patología (CRCP); Departamento de Biología Celular y Molecular; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Catalina Cofré
- Laboratorio de Diferenciación Celular y Patología; Centro de Regulación Celular y Patología (CRCP); Departamento de Biología Celular y Molecular; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Daniel Scherman
- Unité de Technologie Chimique et Biologique pour la Santé; CNRS, UMR8258; Paris F-75006 France
- INSERM U1022; Université Paris Descartes; ENSCP Chimie-ParisTech; Paris France
| | - Pascal Bigey
- Unité de Technologie Chimique et Biologique pour la Santé; CNRS, UMR8258; Paris F-75006 France
- INSERM U1022; Université Paris Descartes; ENSCP Chimie-ParisTech; Paris France
| | - Enrique Brandan
- Laboratorio de Diferenciación Celular y Patología; Centro de Regulación Celular y Patología (CRCP); Departamento de Biología Celular y Molecular; Pontificia Universidad Católica de Chile; Santiago Chile
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21
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Romero A, Cáceres M, Arancibia R, Silva D, Couve E, Martínez C, Martínez J, Smith PC. Cigarette smoke condensate inhibits collagen gel contraction and prostaglandin E2 production in human gingival fibroblasts. J Periodontal Res 2015; 50:371-9. [PMID: 25073540 DOI: 10.1111/jre.12216] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2014] [Indexed: 01/02/2023]
Abstract
BACKGROUND Granulation tissue remodeling and myofibroblastic differentiation are critically important events during wound healing. Tobacco smoking has a detrimental effect in gingival tissue repair. However, studies evaluating the effects of cigarette smoke on these events are lacking. MATERIAL AND METHODS We used gingival fibroblasts cultured within free-floating and restrained collagen gels to simulate the initial and final steps of the granulation tissue phase during tissue repair. Collagen gel contraction was stimulated with serum or transforming growth factor-β1. Cigarette smoke condensate (CSC) was used to evaluate the effects of tobacco smoke on gel contraction. Protein levels of alpha-smooth muscle actin, β1 integrin, matrix metalloproteinase-3 and connective tissue growth factor were evaluated through Western blot. Prostaglandin E(2) (PGE(2)) levels were determined through ELISA. Actin organization was evaluated through confocal microscopy. RESULTS CSC reduced collagen gel contraction induced by serum and transforming growth factor-β1 in restrained collagen gels. CSC also altered the development of actin stress fibers in fibroblasts cultured within restrained collagen gels. PGE(2) levels were strongly diminished by CSC in three-dimensional cell cultures. However, other proteins involved in granulation tissue remodeling and myofibroblastic differentiation such as alpha-smooth muscle actin, β1 integrin, matrix metalloproteinase-3 and connective tissue growth factor, were unmodified by CSC. CONCLUSIONS CSC may alter the capacity of gingival fibroblasts to remodel and contract a collagen matrix. Inhibition of PGE(2) production and alterations of actin stress fibers in these cells may impair proper tissue maturation during wound healing in smokers.
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Affiliation(s)
- A Romero
- Dentistry Academic Unit, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
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22
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TGF-Beta Blockade Increases Renal Inflammation Caused by the C-Terminal Module of the CCN2. Mediators Inflamm 2015; 2015:506041. [PMID: 26074680 PMCID: PMC4436472 DOI: 10.1155/2015/506041] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/10/2015] [Accepted: 04/11/2015] [Indexed: 11/25/2022] Open
Abstract
The CCN family member 2 (CCN2, also known as
connective tissue growth factor) may behave as a risk
biomarker and a potential therapeutic target for renal
disease. CCN2 participates in the regulation of
inflammation and fibrosis. TGF-β is considered
the main fibrogenic cytokine; however, in some
pathological settings TGF-β also has
anti-inflammatory properties. CCN2 has been proposed
as a downstream profibrotic mediator of TGF-β,
but data on TGF-β role in CCN2 actions are
scarce. Our aim was to evaluate the effect of
TGF-β blockade in CCN2-mediated experimental
renal damage. Systemic administration of the
C-terminal module of CCN2 to mice caused sustained
renal inflammation. In these mice, TGF-β
blockade, using an anti-TGF-β neutralizing
antibody, significantly increased renal expression of
the NGAL (a kidney injury biomarker), kidney
infiltration by monocytes/macrophages, and
upregulation of MCP-1 expression. The
anti-inflammatory effect of TGF-β seems to be
mediated by a dysregulation of the systemic Treg
immune response, shown by decreased levels of
circulating CD4+/Foxp3+Treg
cells. Our experimental data support the idea that
TGF-β exerts anti-inflammatory actions in the
kidney and suggest that it is not an optimal
therapeutic target.
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23
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Cofre C, Acuña MJ, Contreras O, Morales MG, Riquelme C, Cabello-Verrugio C, Brandan E. Transforming growth factor type-β inhibits Mas receptor expression in fibroblasts but not in myoblasts or differentiated myotubes; Relevance to fibrosis associated to muscular dystrophies. Biofactors 2015; 41:111-20. [PMID: 25809912 DOI: 10.1002/biof.1208] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 02/26/2015] [Indexed: 12/28/2022]
Abstract
Duchenne muscular dystrophy is a genetic disorder characterized by myofiber degeneration, muscle weakness, and increased fibrosis. Transforming growth factor type-β (TGF-β), a central mediator of fibrosis, is upregulated in fibrotic diseases. Angiotensin-(1-7) [Ang-(1-7)] is a peptide with actions that oppose those of angiotensin-II (Ang II). Ang-(1-7) effects are mediated by the Mas receptor. Treatment with Ang-(1-7) produce positive effects in the mdx mouse, normalizing skeletal muscle architecture, decreasing local fibrosis, and fibroblasts, and improving muscle function. Mdx mice deficient for the Mas receptor showed the opposite effects. To identify the cell type(s) responsible for Mas receptor expression, and to characterize whether profibrotic effectors had any effect on its expression, we determined the effect of profibrotic agents on Mas expression. TGF-β, but not connective tissue growth factor or Ang-II, reduced the expression of Mas receptor in fibroblasts isolated from skeletal muscle cells and fibroblasts from two established cell lines. In contrast, no effects were observed in myoblasts and differentiated myotubes. This inhibition was mediated by the Smad-dependent (canonical) and the PI3K and MEK1/2 (noncanonical) TGF-β signaling pathways. When both canonical and noncanonical inhibitors of the TGF-β-dependent pathways were added together, the inhibitory effect of TGF-β on Mas expression was lost. The decrease in Mas receptor induced by TGF-β in fibroblasts reduced the Ang-(1-7) mediated stimulation of phosphorylation of AKT pathway proteins. These results suggest that reduction of Mas receptor in fibroblasts, by TGF-β, could increase the fibrotic phenotype observed in dystrophic skeletal muscle decreasing the beneficial effect of Ang-(1-7).
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MESH Headings
- Angiotensin I/pharmacology
- Angiotensin II/pharmacology
- Animals
- Cell Line
- Disease Models, Animal
- Fibroblasts/drug effects
- Fibroblasts/metabolism
- Fibroblasts/pathology
- Fibrosis
- Gene Expression Regulation
- MAP Kinase Kinase 1/genetics
- MAP Kinase Kinase 1/metabolism
- MAP Kinase Kinase 2/genetics
- MAP Kinase Kinase 2/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Inbred mdx
- Mice, Knockout
- Muscle Fibers, Skeletal/drug effects
- Muscle Fibers, Skeletal/metabolism
- Muscle Fibers, Skeletal/pathology
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/pathology
- Muscular Dystrophy, Duchenne/genetics
- Muscular Dystrophy, Duchenne/metabolism
- Muscular Dystrophy, Duchenne/pathology
- Myoblasts/drug effects
- Myoblasts/metabolism
- Myoblasts/pathology
- Organ Specificity
- Peptide Fragments/pharmacology
- Phosphatidylinositol 3-Kinases/genetics
- Phosphatidylinositol 3-Kinases/metabolism
- Phosphorylation/drug effects
- Primary Cell Culture
- Proto-Oncogene Mas
- Proto-Oncogene Proteins/antagonists & inhibitors
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- Receptors, G-Protein-Coupled/antagonists & inhibitors
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/metabolism
- Signal Transduction
- Transforming Growth Factor beta/pharmacology
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Affiliation(s)
- Catalina Cofre
- Center for Aging and Regeneration, CARE Chile-UC and Department of Cell and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
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24
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Guo F, Carter DE, Leask A. miR-218 regulates focal adhesion kinase-dependent TGFβ signaling in fibroblasts. Mol Biol Cell 2014; 25:1151-8. [PMID: 24501422 PMCID: PMC3967977 DOI: 10.1091/mbc.e13-08-0451] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Unlike other tissues in the body, the oral cavity does not scar. Myofibroblasts are the essential cell type in scar tissue formation; gingival fibroblasts are relatively unable to differentiate into myofibroblasts in response to TGFβ. This differential response is attributed to the relative lack of miR-218 in gingival fibroblasts. Scarring, which occurs in essentially all adult tissue, is characterized by the excessive production and remodeling of extracellular matrix by α-smooth muscle actin (SMA)–expressing myofibroblasts located within connective tissue. Excessive scarring can cause organ failure and death. Oral gingivae do not scar. Compared to dermal fibroblasts, gingival fibroblasts are less responsive to transforming growth factor β (TGFβ) due to the reduced expression, due to the reduced expression and activity of focal adhesion kinase (FAK) by this cell type. Here we show that, compared with dermal fibroblasts, gingival fibroblasts show reduced expression of miR-218. Introduction of pre–miR-218 into gingival fibroblasts elevates FAK expression and, via a FAK/src-dependent mechanism, results in the ability of TGFβ to induce α-SMA. The deubiquitinase cezanne is a direct target of miR-218 and has increased expression in gingival fibroblasts compared with dermal fibroblasts. Knockdown of cezanne in gingival fibroblasts increases FAK expression and causes TGFβ to induce α-smooth muscle actin (α-SMA). These results suggest that miR-218 regulates the ability of TGFβ to induce myofibroblast differentiation in fibroblasts via cezanne/FAK.
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Affiliation(s)
- Fen Guo
- Department of Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada Department of Physiology and Pharmacology, University of Western Ontario, London, ON N6A 5C1, Canada London Regional Genomics Centre Microarray Facility, Robarts Research Institute, London, ON N6A 5K8, Canada
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25
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Abstract
Fibrosis is defined as increased fibroblast proliferation and deposition of extracellular matrix components with potential clinical ramifications including organ dysfunction and failure. Fibrosis is a characteristic finding of various skin diseases which can have life-threatening consequences. These implications call for research into this topic as only a few treatments targeting fibrosis are available. In this review, we discuss oxidative stress and its role in skin fibrosis. Recent studies have implicated the importance of oxidative stress in a variety of cellular pathways directly and indirectly involved in the pathogenesis of skin fibrosis. The cellular pathways by which oxidative stress affects specific fibrotic skin disorders are also reviewed. Finally, we also describe various therapeutic approaches specifically targeting oxidative stress to prevent skin fibrosis. We believe oxidative stress is a relevant target, and understanding the role of oxidative stress in skin fibrosis will enhance knowledge of fibrotic skin diseases and potentially produce targeted therapeutic options.
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Affiliation(s)
- Anjali Shroff
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, Clinical Research – Dermatology, 5 East 98th Street- 5th floor, Box 1048, New York, NY USA
| | - Andrew Mamalis
- Department of Dermatology, University of California Davis, Sacramento, CA USA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA USA
| | - Jared Jagdeo
- Department of Dermatology, University of California Davis, Sacramento, CA USA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA USA
- Department of Dermatology, State University of New York Downstate Medical Center, Brooklyn, NY USA
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