Research Topics
Genomes and Genes
| Andrew LeaskSummaryAffiliation: University of Western Ontario Country: Canada Publications
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Detail Information
Publications
Sonic advance: CCN1 regulates sonic hedgehog in pancreatic cancerAndrew Leask
Department of Dentistry, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON, Canada, N6A 5C1
J Cell Commun Signal 7:61-2. 2013..CCN1 activity was mediated, at least in part, through altering proteosome activity. These results suggest that CCN1 may be an ideal target for treating PDAC...
Focal adhesion kinase and reactive oxygen species contribute to the persistent fibrotic phenotype of lesional scleroderma fibroblastsXu Shi-Wen
Centre for Rheumatology, University College London Royal Free Campus, London, UK
Rheumatology (Oxford) 51:2146-54. 2012..We aim to identify the precise contribution of adhesive signalling, which requires integrin-mediated activation of focal adhesion kinase (FAK)/src, to fibrogenic gene expression in normal and fibrotic SSc fibroblasts...
Trial by CCN2: a standardized test for fibroproliferative disease?Andrew Leask
Canadian Institutes of Health Research Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada, N6A 5C1
J Cell Commun Signal 3:87-8. 2009..The relative levels of vascular endothelial growth factor (VEGF) and CCN2 (connective tissue growth factor [CTGF]) were examined in proliferative diabetic retinopathy (PDR). This paper is the subject of this commentary...
What's in an intron? CCN1 mRNA splicing in cancerAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, ON, Canada, N6A 5C1
J Cell Commun Signal 3:151-2. 2009..In cancers, or upon hypoxia, intron 3 is removed resulting in the appearance of CCN1 protein. The significance of this paper is discussed...
Death of a tumor: targeting CCN in pancreatic cancerAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON, Canada, N6A 5C1
J Cell Commun Signal 3:159-60. 2009..Cancer Res 69:775-784, 2009) has used shRNA knockdown of CCN2 to illustrate that CCN2 contributes to growth of pancreatic tumor cells, both in vitro and in vivo. This report briefly summarizes these findings...
Regulation of CCN2 mRNA expression and promoter activity in activated hepatic stellate cellsAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, Ontario, N6A 5C1, Canada
J Cell Commun Signal 2:49-56. 2008....
Yin and Yang: CCN3 inhibits the pro-fibrotic effects of CCN2Andrew Leask
Canadian Institutes of Health Research Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
J Cell Commun Signal 3:161-2. 2009..174:1725-34, 2009) illustrates that CCN3 (nov) antagonizes the fibrogenic effects of CCN2. This paper, the subject of this commentary, raises the intriguing possibility that CCN3 may be used as a novel anti-fibrotic therapy...
CCN2 YAPs at cancerAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON, N6A 5C1, Canada
J Cell Commun Signal 2:47-8. 2008..These data confirm the role of CCN2 as a key oncogenic mediator. This report briefly summarizes these findings...
The Starbuck stops here: it's a Smad worldAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON, N6A 5C1, Canada
J Cell Commun Signal 2:1-2. 2008..A recent study by Gressner and colleagues suggested caffeine may block CCN2 expression in hepatic cells. This commentary briefly summarizes these observations...
Connective tissue growth factor (CTGF, CCN2) gene regulation: a potent clinical bio-marker of fibroproliferative disease?Andrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, ON, N6A 5C1, Canada
J Cell Commun Signal 3:89-94. 2009..That CCN2 should be considered a novel and informative surrogate clinical bio-marker for fibroproliferative disease is discussed...
Egr-ly awaiting a "personalized medicine" approach to treat sclerodermaAndrew Leask
Departments of Dentistry and Physiology and Pharmacology, Dental Sciences Building, University of Western Ontario, London, ON, Canada, N6A 5C1
J Cell Commun Signal 6:111-3. 2012..Moreover, targeting IL-13 expression/activity might be a novel therapeutic strategy to target the inflammation leading to "localized" scleroderma...
CCN3: a novel anti-fibrotic treatment in end-stage renal disease?Andrew Leask
Departments of Dentistry and Physiology and Pharmacology, Dental Sciences Building, Western University, London, ON, N6A 5C1, Canada
J Cell Commun Signal 6:115-6. 2012..Thus CCN3 protein may represent a novel therapeutic approach to help repair glomerular endothelial damage and mesangioproliferative changes and hence prevent renal failure, glomerulosclerosis and tubulointerstitial fibrosis...
Emerging targets for the treatment of sclerodermaAndrew Leask
University of Western Ontario, Schulich School of Medicine and Dentistry, Departments of Dentistry and Physiology and Pharmacology, Dental Sciences Building, London, ON N6A 5C1, Canada
Expert Opin Emerg Drugs 17:173-9. 2012..Indeed, drugs currently approved for other rheumatic disease might also be used to treat scleroderma patients bearing an 'inflammatory' gene expression profile...
Toward personalized medicine in scleroderma: classification of scleroderma patients into stable "inflammatory" and "fibrotic" subgroupsAndrew Leask
Department of Dentistry, Dental Sciences Building, Western University, London, Ontario, Canada
J Invest Dermatol 132:1329-31. 2012..The inflammatory patients might be treated with anti-inflammatory agents, whereas fibroproliferative patients might be treated with antifibrotic agents...
Loss of PPARγ expression by fibroblasts enhances dermal wound closureWei Sha
Department of Dentistry, Schulich School of Medicine and Dentistry, Western University, Dental Sciences Bldg, London, ON, N6A 5C1, Canada
Fibrogenesis Tissue Repair 5:5. 2012..abstract:..
MEK/ERK inhibitors: proof-of-concept studies in lung fibrosisAndrew Leask
Departments of Dentistry and Physiology and Pharmacology, University of Western Ontario, Dental Sciences Building, London, ON, Canada, N6A 5C1
J Cell Commun Signal 6:59-60. 2012..Thus MEK inhibition could be a valuable method to treat lung fibrosis...
Sp1king out cancer (....and fibrosis?)Andrew Leask
Department of Dentistry, University of Western Ontario, London, ON, Canada, NGA 5C1
J Cell Commun Signal 6:61-2. 2012..Given that Sp1 proteins also promote expression of profibrotic genes such as collagen type I and CCN2, it is possible that this combinatorial approach may be taken in the future to block not only cancer but also fibrosis...
A sticky situation: CCN1 promotes both proliferation and apoptosis of cancer cellsAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON N6A 5C1 Canada
J Cell Commun Signal 4:71-2. 2010..Thus the utility of anti-CCN1 therapy in cancer needs to be carefully considered in light of these divergent results. The significance of this paper is discussed...
Getting to the heart of the matter: CCN2 plays a role in cardiomyocyte hypertrophyAndrew Leask
Division of Oral Biology and Department of Physiology and Pharmacology, University of Western Ontario, Dental Sciences Building, London, ON N6A 5C1 Canada
J Cell Commun Signal 4:73-4. 2010..CCN2 acted via the TrkA receptor. These data are the subject of this commentary, and emphasize that CCN2 may be an excellent target for therapy in diabetes...
Thrombin-induced CCN2 expression as a target for anti-fibrotic therapy in sclerodermaAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology, Department of Dentistry, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON Canada N6A 5C1
J Cell Commun Signal 4:111-2. 2010..These results strongly suggest that dabigatran may be a potential antifibrotic drug for the treatment of fibrosing diseases such as scleroderma...
Pericytes display increased CCN2 expression upon culturingXu Shiwen
Centre for Rheumatology, University College London Royal Free Campus, Rowland Hill Street, London, UK, NW3 2PF
J Cell Commun Signal 3:61-4. 2009..These results indicate that, in principle, pericytes have the capacity to become fibroblast-like and that pericytes may contribute to the population of fibroblasts in a healed wound...
Connective tissue growth factor is induced in bleomycin-induced skin sclerodermaShangxi Liu
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON N6A 5C1 Canada
J Cell Commun Signal 4:25-30. 2010..Thus CCN2 is induced in fibrotic skin, correlating with the induction of myofibroblast induction. Moreover, CCN2-expressing pericytes significantly contribute to the appearance of myofibroblasts in bleomycin-induced skin scleroderma...
Wnt 10b activates the CCN2 promoter in NIH 3T3 fibroblasts through the Smad response elementShaoqiong Chen
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON, Canada, N6A 5C1
J Cell Commun Signal 3:57-9. 2009..These results suggest that Wnts may cross-talk with the Smad signaling pathway to induce fibrotic responses in fibroblasts...
Thrombospondin 1 in hypoxia-conditioned media blocks the growth of human microvascular endothelial cells and is increased in systemic sclerosis tissuesLuke Morgan-Rowe
Centre for Rheumatology Research and Connective Tissue Diseases, The Royal Free Hospital Campus, University College London, Pond Street, London NW3 2QG, UK
Fibrogenesis Tissue Repair 4:13. 2011..abstract:..
Src kinase inhibition promotes the chondrocyte phenotypeLaura Bursell
Department of Physiology and Pharmacology, Canadian Institutes of Health Research Group in Skeletal Development and Remodeling, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada, N6A 5C1
Arthritis Res Ther 9:R105. 2007..Strategies to block Src activity might therefore be useful both in tissue engineering of cartilage and in the maintenance of the chondrocyte phenotype in diseases such as osteoarthritis...
The induction of CCN2 by TGFbeta1 involves Ets-1Jonathan P van Beek
CIHR Group in Skeletal Development and Remodeling, Schulich School of Medicine and Dentistry, Dental Sciences Building, The University of Western Ontario, London, ON N6A 5C1, Canada
Arthritis Res Ther 8:R36. 2006..Antagonizing Ets-1 might be of benefit in attenuating CCN2 expression in fibrosis, arthritis and cancer, and may be useful in modulating the outcome of these disorders...
Targeting the TGFbeta, endothelin-1 and CCN2 axis to combat fibrosis in sclerodermaAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada N6A 5C1
Cell Signal 20:1409-14. 2008..In particular the potent pro-fibrotic proteins endothelin-1 (ET-1) and CCN2 (connective tissue growth factor, CTGF) are believed to play an essential role in this process. This review summarizes these recent crucial observations...
Signaling in fibrosis: targeting the TGF beta, endothelin-1 and CCN2 axis in sclerodermaAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London ON, Canada
Front Biosci (Elite Ed) 1:115-22. 2009..This review summarizes these recent crucial observations with emphasis on the disease scleroderma...
Loss of protein kinase Cepsilon results in impaired cutaneous wound closure and myofibroblast functionAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London ON, Canada N6A 5C1
J Cell Sci 121:3459-67. 2008..These results suggest that loss of PKCepsilon severely impairs myofibroblast formation and function, and that targeting PKCepsilon may be beneficial in selectively modulating wound healing and fibrotic responses in vivo...
The skinny on CCN2Andrew Leask
Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, ON, N6A 5C1, Canada
J Cell Commun Signal 2:93-4. 2008..A recent report written by Tan and colleagues (Am J Physiol Cell Physiol 295: C740-C751 2008) shows that CCN2 inhibits adipocyte differentiation. This commentary summarizes these observations...
The role of endothelin-1 signaling in the fibrosis observed in systemic sclerosisAndrew Leask
Department of Dentistry, Dental Sciences Building, University of Western Ontario, London, ON N6A5C1, Canada
Pharmacol Res 63:502-3. 2011..However, clinically, endothelin receptor antagonism alone has had mixed results. This minireview summarizes these observations...
CCN1: a novel target for pancreatic cancerAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON, Canada, N6A 5C1
J Cell Commun Signal 5:123-4. 2011..A recent exciting report by Haque and colleagues (Mol Cancer. 2011 Jan 13;10:8) provides strong evidence that CCN1 (cyr61) is a potential therapeutic target in pancreatic cancer...
Possible strategies for anti-fibrotic drug intervention in sclerodermaAndrew Leask
Division of Oral Biology, Department of Dentistry, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, ON, N6A 5C1, Canada
J Cell Commun Signal 5:125-9. 2011..Moreover, peroxisome proliferator-activated receptor (PPAR)γ also appears to act by intervening in TGFβ signaling. This review discusses these potential candidates for antifibrotic therapy in SSc...
Potential therapeutic targets for cardiac fibrosis: TGFbeta, angiotensin, endothelin, CCN2, and PDGF, partners in fibroblast activationAndrew Leask
Dental Sciences Building, London ON N6A 5C1, Canada
Circ Res 106:1675-80. 2010....
When there's smoke there's…scleroderma: evidence that patients with scleroderma should stop smokingAndrew Leask
Department of Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
J Cell Commun Signal 5:67-8. 2011..This commentary discusses this recent publication which suggests that physicians should encourage SSc patients to stop smoking immediately...
TGFbeta, cardiac fibroblasts, and the fibrotic responseAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London ON, Canada N6A 5C1
Cardiovasc Res 74:207-12. 2007....
All in the CCN family: essential matricellular signaling modulators emerge from the bunkerAndrew Leask
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology, and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A 5C1, Canada
J Cell Sci 119:4803-10. 2006....
CCN2/decorin interactions: a novel approach to combating fibrosis?Andrew Leask
Department of Dentistry, University of Western Ontario, London, NGA 5C1, ON, Canada
J Cell Commun Signal 5:249-50. 2011..Thus it is conceivable that this peptide could be used in the future as a novel antifibrotic approach...
Towards an anti-fibrotic therapy for scleroderma: targeting myofibroblast differentiation and recruitmentAndrew Leask
Division of Oral Biology, Department of Dentistry, Schulich School of Medicine and Dentistry University of Western Ontario, Dental Sciences Building, London ON N6A 5C1 Canada
Fibrogenesis Tissue Repair 3:8. 2010..TGFbeta, ET-1 and CCN2 appear to contribute to myofibroblast differentiation; PDGF appears to be involved with pericyte recruitment. Thus, different therapeutic strategies may exist for targeting the multisystem fibrotic disorder SSc...
Eureka! Ets a target for fibrosis!Andrew Leask
Department of Dentistry, Dental Sciences Building, University of Western Ontario, London, ON, Canada, N6A 5C1
J Cell Commun Signal 5:325-6. 2011..Am J Respir Cell Mol Biol. 2011 May 11) shows that mice containing a version of ets2 that is incapable of being phosphorylated are resistant to bleomycin-induced lung fibrosis. This latter paper is the subject of this commentary...
Hijacking ZIP codes: posttanscriptional regulation of CCN2 by nucleophosminAndrew Leask
Canadian Institutes of Health Research Group in Skeletal Development and Remodeling, Division of Oral Biology, London, ON, Canada, N6A 5C1
J Cell Commun Signal 3:85-6. 2009....
CCN2: a bona fide target for anti-fibrotic drug interventionAndrew Leask
Departments of Dentistry and Physiology and Pharmacology, University of Western Ontario, London, ON, Canada, N6A 5C1
J Cell Commun Signal 5:131-3. 2011..in Fibrogenesis Tissue Repair 4:1-4, 2011). This commentary addresses recent data indicating that CCN2 appears to represent a key central mediator of fibrosis and a good target for anti-fibrotic drug intervention...
Will o' the wisp: CCN4 as a novel molecular target in osteoarthritisAndrew Leask
Department of Dentistry, University of Western Ontario, London, ON, Canada, NGA 5C1
J Cell Commun Signal 5:51-2. 2011..This commentary summarizes these exciting findings...
Endogenous endothelin-1 signaling contributes to type I collagen and CCN2 overexpression in fibrotic fibroblastsXu Shi-Wen
Centre for Rheumatology, Department of Medicine, Royal Free and University College Medical School, Rowland Hill Street, London NW3 2PF, UK
Matrix Biol 26:625-32. 2007..Thus endogenous endothelin signaling contributes to the fibrotic phenotype of fibrotic fibroblasts, suggesting that antagonizing endothelin receptors may be of benefit in combating fibrotic disease...
Endothelin is a downstream mediator of profibrotic responses to transforming growth factor beta in human lung fibroblastsXu Shi-Wen
Royal Free Hospital, University College London, London, UK
Arthritis Rheum 56:4189-94. 2007..The goal of this study was to assess whether ET-1 is a downstream mediator of the profibrotic effects of TGFbeta in lung fibroblasts...
Requirement of transforming growth factor beta-activated kinase 1 for transforming growth factor beta-induced alpha-smooth muscle actin expression and extracellular matrix contraction in fibroblastsXu Shi-Wen
University College London Royal Free Campus, London, UK
Arthritis Rheum 60:234-41. 2009..The present study was undertaken to assess whether TGFbeta-activated kinase 1 (TAK1) acts downstream of FAK/Src to mediate fibrogenic responses in fibroblasts...
FAK is required for TGFbeta-induced JNK phosphorylation in fibroblasts: implications for acquisition of a matrix-remodeling phenotypeShangxi Liu
Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
Mol Biol Cell 18:2169-78. 2007....
Heparan sulfate-dependent ERK activation contributes to the overexpression of fibrotic proteins and enhanced contraction by scleroderma fibroblastsYunliang Chen
University College London, London, UK
Arthritis Rheum 58:577-85. 2008....
Rac1 expression by fibroblasts is required for tissue repair in vivoShangxi Liu
Department of Physiology and Pharmacology, Division of Oral Biology, Schulich School of Medicine and Dentistry, Canadian Institute of Health Research Group in Skeletal Development and Remodeling, University of Western Ontario, London, Ontario, Canada
Am J Pathol 174:1847-56. 2009..Thus, Rac1 is an essential signaling integrator that is required for normal wound healing and dermal homeostasis...
Pivotal role of connective tissue growth factor in lung fibrosis: MAPK-dependent transcriptional activation of type I collagenMarkella Ponticos
Royal Free and University College Medical School, London, UK
Arthritis Rheum 60:2142-55. 2009....
GSK-3beta in mouse fibroblasts controls wound healing and fibrosis through an endothelin-1-dependent mechanismMohit Kapoor
Division of Oral Biology and Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
J Clin Invest 118:3279-90. 2008..These results suggest that targeting the GSK-3beta pathway or ET-1 may be of benefit in controlling tissue repair and fibrogenic responses in vivo...
CCN2 is necessary for the function of mouse embryonic fibroblastsLaura Kennedy
Division of Oral Biology and Department of Physiology and Pharmacology, CIHR Group in Skeletal Development and Remodeling, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, ON, Canada N6A 5C1
Exp Cell Res 313:952-64. 2007....
Expression of integrin beta1 by fibroblasts is required for tissue repair in vivoShangxi Liu
The Canadian Institute of Health Research Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, ON N6A 5C1, Canada
J Cell Sci 123:3674-82. 2010..Addition of active TGFβ alleviated the phenotype of integrin-β1-deficient mice. Thus integrin β1 is essential for normal wound healing, where it acts, at least in part, through a TGFβ-dependent mechanism in vivo...
Rac inhibition reverses the phenotype of fibrotic fibroblastsShi wen Xu
Centre for Rheumatology, Department of Medicine, University College London Royal Free Campus, London, United Kingdom
PLoS ONE 4:e7438. 2009..The basis for this phenomenon is poorly understood, and is a necessary prerequisite for developing novel, rational anti-fibrotic strategies...
Egr-1 inhibits the expression of extracellular matrix genes in chondrocytes by TNFalpha-induced MEK/ERK signallingJason S Rockel
Canadian Institutes of Health Research Group in Skeletal Development and Remodeling, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario N6A5C1, Canada
Arthritis Res Ther 11:R8. 2009..TNFalpha activates mitogen-activated kinase kinase (MEK)/extracellular regulated kinase (ERK) in chondrocytes; however, the overall functional relevance of MEK/ERK to TNFalpha-regulated gene expression in chondrocytes is unknown...
Focal adhesion kinase/Src suppresses early chondrogenesis: central role of CCN2Daphne Pala
Department of Physiology and Pharmacology and Division of Oral Biology, Canadian Institute of Health Research Group in Skeletal Development and Remodeling, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
J Biol Chem 283:9239-47. 2008..Our results suggest a reduction in FAK/Src signaling is a critical feature permitting chondrogenic differentiation and that CCN2 operates downstream of this loss to promote chondrogenesis...
Loss of peroxisome proliferator-activated receptor gamma in mouse fibroblasts results in increased susceptibility to bleomycin-induced skin fibrosisMohit Kapoor
University of Western Ontario, London, Ontario, Canada
Arthritis Rheum 60:2822-9. 2009..The aim of the present study was to examine the role of PPARgamma in a mouse model of skin scleroderma, in which mice bearing a fibroblast-specific deletion of PPARgamma were used...
Role of Rac1 in a bleomycin-induced scleroderma model using fibroblast-specific Rac1-knockout miceShangxi Liu
University of Western Ontario, London, Ontario, Canada
Arthritis Rheum 58:2189-95. 2008..Rac1 plays a key role in adhesive signaling. The aim of the present study was to examine the role of Rac1 in bleomycin-induced scleroderma, using mice with a fibroblast-specific deletion of Rac1...
Loss of beta1 integrin in mouse fibroblasts results in resistance to skin scleroderma in a mouse modelShangxi Liu
University of Western Ontario, London, Ontario, Canada
Arthritis Rheum 60:2817-21. 2009..Beta-1 integrin plays a key role in adhesive signaling. The aim of the present study was to examine the role of beta1 integrin in a mouse model of skin scleroderma using mice bearing a fibroblast-specific deletion of beta1 integrin...
CCN2 is necessary for adhesive responses to transforming growth factor-beta1 in embryonic fibroblastsXu Shi-Wen
Centre for Rheumatology, Department of Medicine, University College London Royal Free Campus, London NW3 2PF, United Kingdom
J Biol Chem 281:10715-26. 2006..Thus in embryonic fibroblasts, CCN2 is a necessary cofactor required for TGFbeta to activate the adhesive FAK/Akt/phosphatidylinositol 3-kinase cascade, FAK/Akt-dependent genes, and adhesion to matrix...
Loss of PTEN expression by dermal fibroblasts causes skin fibrosisSunil K Parapuram
Department of Dentistry, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
J Invest Dermatol 131:1996-2003. 2011..Overexpression of PTEN reduced the overexpression of type I collagen and CCN2 by dSSc fibroblasts. Thus, PTEN appears to be a potential in vivo master regulator of fibrogenesis; PTEN agonists may represent anti-fibrotic treatments...
Fibroblast adhesion results in the induction of a matrix remodeling gene expression programLaura Kennedy
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London ON, Canada N6A 5C1
Matrix Biol 27:274-81. 2008..These results suggest that adhesion of fibroblasts to matrix during the initial phases of tissue remodeling and repair may actively contribute to the tissue repair program through the induction of pro-fibrotic gene expression...
Matrix contraction by dermal fibroblasts requires transforming growth factor-beta/activin-linked kinase 5, heparan sulfate-containing proteoglycans, and MEK/ERK: insights into pathological scarring in chronic fibrotic diseaseYunliang Chen
Centre for Rheumatology, University College London, Royal Free Campus, UK
Am J Pathol 167:1699-711. 2005..We conclude that antagonizing MEK/ERK, TGFbeta1/ALK5, or syndecan 4 may alleviate scarring in chronic fibrotic disease...
TGF-beta signaling and the fibrotic responseAndrew Leask
Centre for Rheumatology, Department of Medicine, Royal Free and University College Medical School, Rowland Hill St, London, UK NW3 2PF
FASEB J 18:816-27. 2004....
Rosiglitazone alleviates the persistent fibrotic phenotype of lesional skin scleroderma fibroblastsXu Shi-Wen
Centre for Rheumatology, University College London Royal Free Campus, London, UK
Rheumatology (Oxford) 49:259-63. 2010..The aim of the present study was to examine whether PPAR-gamma expression was reduced in skin scleroderma fibroblasts and whether PPAR-gamma agonists could suppress the persistent fibrotic phenotype of skin scleroderma fibroblasts...
Epithelial cells promote fibroblast activation via IL-1alpha in systemic sclerosisNima Aden
Centre for Rheumatology and Connective Tissue Diseases, Royal Free Hospital Campus, University College Medical School, University College London, London, UK
J Invest Dermatol 130:2191-200. 2010..These findings are important because biologic therapies could target epithelial-fibroblast interactions in the disease...
Regulation and function of connective tissue growth factor/CCN2 in tissue repair, scarring and fibrosisXu Shi-Wen
Centre for Rheumatology, Department of Medicine, Hampstead Campus, University College London, Rowland Hill Street, London NW3 2PF, UK
Cytokine Growth Factor Rev 19:133-44. 2008..Abnormal amplification of CTGF dependent signals results in a failure to terminate tissue repair, leading pathological scarring in conditions such as fibrosis and cancer...
Constitutive ALK5-independent c-Jun N-terminal kinase activation contributes to endothelin-1 overexpression in pulmonary fibrosis: evidence of an autocrine endothelin loop operating through the endothelin A and B receptorsXu Shi-Wen
Centre for Rheumatology, Department of Medicine, Royal Free and University College Medical School, Rowland Hill Street, London NW3 2PF, United Kingdom
Mol Cell Biol 26:5518-27. 2006....
Cyclic AMP regulates extracellular matrix gene expression and metabolism in cultured primary rat chondrocytesJason S Rockel
Canadian Institutes of Health Research Group in Skeletal Development and Remodeling, Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
Matrix Biol 28:354-64. 2009..Collectively, these results suggest that agents that elevate cAMP signaling may impair chondrocyte function in conditions such as arthritis...
Contribution of activin receptor-like kinase 5 (transforming growth factor beta receptor type I) signaling to the fibrotic phenotype of scleroderma fibroblastsYunliang Chen
Royal Free and University College Medical School, London, UK
Arthritis Rheum 54:1309-16. 2006..CONCLUSION: Our data suggest that some of the key profibrotic features of lesional SSc fibroblasts are dependent upon ALK-5 activity. Thus, TGFbetaRI kinase-mediated signaling may contribute to dermal fibrosis in dcSSc...
CCN2 is required for bleomycin-induced skin fibrosis in miceShangxi Liu
Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
Arthritis Rheum 63:239-46. 2011..The aim of this study was to assess whether adult mice bearing a smooth muscle cell/fibroblast-specific deletion of CCN2 are resistant to bleomycin-induced skin scleroderma...
Prostacyclin derivatives prevent the fibrotic response to TGF-beta by inhibiting the Ras/MEK/ERK pathwayRichard Stratton
Centre for Rheumatology, Royal Free Hospital and University College School of Medicine, London NW3 2PF, UK
FASEB J 16:1949-51. 2002..Specific inhibition of fibroblast Ras/MEK/ERK signaling might prevent fibrosis while leaving other physiological effects of TGFbeta unaltered...
Gingival fibroblasts display reduced adhesion and spreading on extracellular matrix: a possible basis for scarless tissue repair?Fen Guo
Department of Dentistry, University of Western Ontario, London, Ontario, Canada
PLoS ONE 6:e27097. 2011..Controlling adhesive properties may be of benefit in controlling scarring in response to tissue injury...
Transcriptional profiling of the scleroderma fibroblast reveals a potential role for connective tissue growth factor (CTGF) in pathological fibrosisAndrew Leask
Centre for Rheumatology, Royal Free and University College Medical School, University College London, London, UK
Keio J Med 53:74-7. 2004..Thus the constitutive overexpression of CTGF by fibroblasts present in fibrotic lesions would be expected to directly contribute to chronic, persistent fibrosis...
Thrombospondin 1 is a key mediator of transforming growth factor β-mediated cell contractility in systemic sclerosis via a mitogen-activated protein kinase kinase (MEK)/extracellular signal-regulated kinase (ERK)-dependent mechanismYunliang Chen
School of Life Sciences, University of Westminster, London, UK
Fibrogenesis Tissue Repair 4:9. 2011..In this report we investigate whether activation of latent TGFβ by TSP1 plays a key role in matrix contraction by normal and scleroderma fibroblasts...
Integrin β1 is necessary for the maintenance of corneal structural integritySunil K Parapuram
Department of Dentistry, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
Invest Ophthalmol Vis Sci 52:7799-806. 2011..Given that integrins are essential for cell/extracellular matrix interactions, the authors tested the hypothesis that integrin expression by keratocytes is essential for corneal structure and function...
Mechanical tension increases CCN2/CTGF expression and proliferation in gingival fibroblasts via a TGFβ-dependent mechanismFen Guo
Department of Dentistry, University of Western Ontario, London, Ontario, Canada
PLoS ONE 6:e19756. 2011....
Scar wars: is TGFbeta the phantom menace in scleroderma?Andrew Leask
Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, ON N6A 5C1, Canada
Arthritis Res Ther 8:213. 2006..Recently, the signaling pathways through which TGFbeta activates a fibrotic program have been elucidated and, as a consequence, several possible points for anti-fibrotic drug intervention in SSc have emerged...
Insights into the molecular mechanism of chronic fibrosis: the role of connective tissue growth factor in sclerodermaAndrew Leask
Center for Rheumatology, Royal Free and University College Medical School, University College London, Royal Free Campus, London, UK
J Invest Dermatol 122:1-6. 2004..This review discusses recent information regarding insights into connective tissue growth factor biology and, using scleroderma as a model system, the part connective tissue growth factor might play in fibrotic disease...
Connective tissue growth factor: a new and important player in the pathogenesis of fibrosisAndrew Leask
Centre for Rheumatology, Department of Medicine, Royal Free and University College Medical School, Royal Free Campus, Rowland Hill St, London NW3 2PF, UK
Curr Rheumatol Rep 4:136-42. 2002....
Gene expression profiling reveals novel TGFbeta targets in adult lung fibroblastsElisabetta A Renzoni
Interstitial Lung Disease Unit, Royal Brompton Hospital, Imperial College of Science, Technology and Medicine, Emmanuel Kaye Building, 1B Manresa Road, SW3 6LR, London, UK
Respir Res 5:24. 2004..Even though the effects of TGFbeta on the gene expression of several proteins have been investigated in several lung fibroblast cell lines, the global pattern of response to this cytokine in adult lung fibroblasts is still unknown...
CCN2 is not required for skin developmentShangxi Liu
Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Bldg, London, ON, Canada, N6A 5C1
J Cell Commun Signal 5:179-82. 2011..Thus, although recently we have shown that CCN2 is required for fibrogenesis in postnatal mice, CCN2 is not required for skin development during embryogenesis...
The gene expression profile induced by Wnt 3a in NIH 3T3 fibroblastsShaoqiong Chen
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, Dental Sciences Building, London, ON, Canada, N6A 5C1
J Cell Commun Signal 1:175-83. 2007..These results suggest that Wnts induce genes promoting fibroblast differentiation towards angiogenesis and matrix remodeling, at the expense of skeletal development...
Ceramide inhibits CCN2 expression in fibroblastsLaura Kennedy
CIHR Group in Skeletal Development and Remodeling, Division of Oral Biology and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Dental Sciences Building, University of Western Ontario, London, ON, N6A 5C1, Canada
J Cell Commun Signal 2:19-23. 2008..C2 ceramide reduced the ability of TGFbeta to induce the generic Smad responsive promoter/reporter construct SBE-luciferase. These results suggest that C2 ceramide reduces the action of TGFbeta in fibroblasts via Smad antagonism...
CTGF expression in mesangial cells: involvement of SMADs, MAP kinase, and PKCYoujun Chen
FibroGen, Inc, 225 Gateway Boulevard, South San Francisco, CA 94080, USA
Kidney Int 62:1149-59. 2002..The induction of excess matrix in renal fibrosis seems to be mediated, at least in part, by the transforming growth factor-beta (TGF-beta)-mediated induction of connective tissue growth factor (CTGF) in mesangial cells...
Gene regulation of connective tissue growth factor: new targets for antifibrotic therapy?Ingrid E Blom
Department of Pathology, H04 312, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
Matrix Biol 21:473-82. 2002..In addition, alternative therapies targeting CTGF effects are proposed which might lead to a favorable outcome of wound repair and fibrosis...
Connective tissue growth factor gene regulation. Requirements for its induction by transforming growth factor-beta 2 in fibroblastsAndrew Leask
FibroGen, Inc, South San Francisco, California 94080, USA
J Biol Chem 278:13008-15. 2003..Thus Smads, Ras/MEK/ERK, protein kinase C, and fibroblast-enriched factors that bind GAGGAATGG act together to drive the TGF-beta-mediated induction of CTGF in fibroblasts...
Constitutive connective tissue growth factor expression in scleroderma fibroblasts is dependent on Sp1Alan Holmes
Royal Free and University College Medical School, Center for Rheumatology, Department of Medicine, Rowland Hill St, London, United Kingdom NW3 2PF
J Biol Chem 278:41728-33. 2003..Thus, the constitutive overexpression of CTGF in SSc fibroblasts seems to be independent of TGFbeta signaling but dependent at least in part on Sp1...
The role of connective tissue growth factor, a multifunctional matricellular protein, in fibroblast biologyAndrew Leask
Center for Rheumatology, Department of Medicine, Royal Free, University College London, Rowland Hill Sreet, London NW3 PF, U K
Biochem Cell Biol 81:355-63. 2003..This review summarizes the current state of knowledge regarding CTGF biology...
Lefty contributes to the remodeling of extracellular matrix by inhibition of connective tissue growth factor and collagen mRNA expression and increased proteolytic activity in a fibrosarcoma modelJames M Mason
Department of Pathology, North Shore-Long Island Jewish Research Institute and New York University School of Medicine, Manhasset, New York 11030, USA
J Biol Chem 277:407-15. 2002..These findings provide a new insight on the actions of lefty and suggest that this cytokine plays an active role in remodeling of the extracellular matrix in vivo...
CCN2 (connective tissue growth factor) promotes fibroblast adhesion to fibronectinYunliang Chen
Centre for Rheumatology, Royal Free and University College Medical School, University College London (Royal Free Campus, Hampstead, London NW3 2PF, United Kingdom
Mol Biol Cell 15:5635-46. 2004..These results are consistent with the notion that a principal function of CCN2 is to modulate receptor/ligand interactions in vivo...
Endothelin-1 induces expression of matrix-associated genes in lung fibroblasts through MEK/ERKShi wen Xu
Centre for Rheumatology, Department of Medicine, Royal Free and University College London, United Kingdom
J Biol Chem 279:23098-103. 2004..Our results suggest that ET-1 induces a program of matrix synthesis in lung fibroblasts and that ET-1 may play a key role in connective tissue deposition during wound repair and in pulmonary fibrosis...
The Kruppel-like factor KLF15 inhibits connective tissue growth factor (CTGF) expression in cardiac fibroblastsBaiqiu Wang
Case Cardiovascular Research Institute, Case Western Reserve University School of Medicine University Hospitals Case Medical Center, Cleveland, OH 44106, USA
J Mol Cell Cardiol 45:193-7. 2008..Consistent with this observation, KLF15 mediated repression of the CTGF promoter is rescued by P/CAF overexpression. Our result implicates KLF15 as a novel negative regulator of CTGF expression and cardiac fibrosis...
Endothelin-1 promotes myofibroblast induction through the ETA receptor via a rac/phosphoinositide 3-kinase/Akt-dependent pathway and is essential for the enhanced contractile phenotype of fibrotic fibroblastsXu Shi-Wen
Centre for Rheumatology, Royal Free and University College Medical School, London NW3 2PF, United Kingdom
Mol Biol Cell 15:2707-19. 2004..Thus, blocking ET-1 or the PI3-kinase/Akt cascades might be beneficial in reducing scar formation in pulmonary fibrosis...
Activation of key profibrotic mechanisms in transgenic fibroblasts expressing kinase-deficient type II Transforming growth factor-{beta} receptor (T{beta}RII{delta}k)Christopher P Denton
Centre for Rheumatology, Royal Free and University College Medical School, Hampstead Campus, London NW3 2PF, United Kingdom
J Biol Chem 280:16053-65. 2005..Our study demonstrates that altered high affinity TGFbeta receptor function may lead to ligand-dependent activation of downstream signaling, and provides further evidence of a pivotal role for sustained TGFbeta overactivity in fibrosis...
Curcumin prevents and reverses murine cardiac hypertrophyHong Liang Li
Division of Cardiology, Heart and Stroke Richard Lewar Centre of Excellence, University Health Network, University of Toronto, Toronto, Ontario, Canada
J Clin Invest 118:879-93. 2008..Our results indicate that curcumin has the potential to protect against cardiac hypertrophy, inflammation, and fibrosis through suppression of p300-HAT activity and downstream GATA4, NF-kappaB, and TGF-beta-Smad signaling pathways...
