Nintedanib (BIBF1120) is a triple kinase inhibitor of platelet-derived growth factor receptor (PDGFR), fibroblast growth factor receptors (FGFR), vascular endothelial growth factor receptor (VEGFR), and Src family kinase, which has recently been approved by FDA to treat idiopathic pulmonary fibrosis. Whether it affects renal fibrosis remains unknown. Here, we demonstrated that administration of nintedanib immediately or 3 days after unilateral ureteral obstruction (UUO) injury and with folic acid (FA) injection attenuated renal fibrosis and inhibited activation of renal interstitial fibroblasts. Delayed administration of nintedanib also partially reversed established renal fibrosis. Treatment with nintedanib blocked UUO-induced phosphorylation of PDGFRβ, FGFR1, FGFR2, VEGFR2, and several Src family kinases including Src, Lck, Lyn as well as activation of signal transducer and activator of transcription-3 (STAT3), nuclear factor-κB (NF-κB), and Smad-3 in the kidney. Furthermore, nintedanib inhibited UUO-elicited renal proinflammatory cytokine expression and macrophage infiltration. These data indicate that nintedanib is a potent anti-fibrotic agent in the kidney and may hold therapeutic potential as a treatment of chronic fibrotic kidney disease.
Nintedanib, a triple tyrosine kinase inhibitor, attenuates renal fibrosis in chronic kidney disease
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Feng Liu, Li Wang, Hualin Qi, Jun Wang, Yi Wang, Wei Jiang, Liuqing Xu, Na Liu, Shougang Zhuang; Nintedanib, a triple tyrosine kinase inhibitor, attenuates renal fibrosis in chronic kidney disease. Clin Sci (Lond) 15 August 2017; 131 (16): 2125–2143. doi: https://doi.org/10.1042/CS20170134
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