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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Pharmacol+Exp+Ther
2014 ; 349
(3
): 480-6
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Targeting the myofibroblast genetic switch: inhibitors of myocardin-related
transcription factor/serum response factor-regulated gene transcription prevent
fibrosis in a murine model of skin injury
#MMPMID24706986
Haak AJ
; Tsou PS
; Amin MA
; Ruth JH
; Campbell P
; Fox DA
; Khanna D
; Larsen SD
; Neubig RR
J Pharmacol Exp Ther
2014[Jun]; 349
(3
): 480-6
PMID24706986
show ga
Systemic sclerosis (SSc), or scleroderma, similar to many fibrotic disorders,
lacks effective therapies. Current trials focus on anti-inflammatory drugs or
targeted approaches aimed at one of the many receptor mechanisms initiating
fibrosis. In light of evidence that a myocardin-related transcription factor
(MRTF)-and serum response factor (SRF)-regulated gene transcriptional program
induced by Rho GTPases is essential for myofibroblast activation, we explored the
hypothesis that inhibitors of this pathway may represent novel antifibrotics.
MRTF/SRF-regulated genes show spontaneously increased expression in primary
dermal fibroblasts from patients with diffuse cutaneous SSc. A novel
small-molecule inhibitor of MRTF/SRF-regulated transcription (CCG-203971)
inhibits expression of connective tissue growth factor (CTGF), ?-smooth muscle
actin (?-SMA), and collagen 1 (COL1A2) in both SSc fibroblasts and in
lysophosphatidic acid (LPA)-and transforming growth factor ? (TGF?)-stimulated
fibroblasts. In vivo treatment with CCG-203971 also prevented bleomycin-induced
skin thickening and collagen deposition. Thus, targeting the MRTF/SRF gene
transcription pathway could provide an efficacious new approach to therapy for
SSc and other fibrotic disorders.