期刊
FASEB JOURNAL
卷 22, 期 7, 页码 2214-2222出版社
FEDERATION AMER SOC EXP BIOL
DOI: 10.1096/fj.07-105627
关键词
systemic sclerosis; scleroderma; fibroblasts; TGF beta; translational
Abelson kinase (c-abl) and platelet-derived growth factor (PDGF) are key players in the pathogenesis of systemic sclerosis (SSc). The aim of the present study was to evaluate the antifibrotic potential of dasatinib and nilotinib, 2 novel inhibitors of c-abl and PDGF, which are well tolerated and have recently been approved. Dasatinib and nilotinib dose-dependently reduced the mRNA and protein levels of extracellular matrix proteins in human stimulated dermal fibroblasts from SSc patients (IC50 of 0.5-2.0 nM for dasatinib and 0.8-2.5 nM for nilotinib). In a mouse model of bleomycin-induced dermal fibrosis, dasatinib and nilotinib potently reduced the dermal thickness, the number of myofibroblasts, and the collagen content of the skin in a dose-dependent manner at well-tolerated doses. These data indicate that dasatinib and nilotinib potently inhibit the synthesis of extracellular matrix in vitro and in vivo at biologically relevant concentrations. Thus, we provide the first evidence that dasatinib and nilotinib might be promising drugs for the treatment of patients with SSc.
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