target/FGFR/1

Antifibrotic agent 1 is an orally active medication designed to treat idiopathic pulmonary fibrosis (IPF). It effectively mitigates IPF-related processes, including TGF-β-induced epithelial-mesenchymal transition (EMT) and fibroblast-to-myofibroblast transition (FMT), as well as profibrotic M2 polarization. Antifibrotic agent 1 selectively inhibits CSF-1R, PDGFR-α, and Src family kinases (SFKs), while sparing VEGFR, FGFR, and Abl to minimize off-target toxicity. In a bleomycin (BLM)-induced pulmonary fibrosis mouse model, it demonstrates strong antifibrotic activity.

Arg-IN-1 is a selective covalent inhibitor targeting Arginine (Arg), with IC50 values of 9.7 nM and 30.4 nM for FGFR2 and FGFR3, respectively. This compound is designed to potentially avoid the off-target toxicity of FGFR1/4 and overcome acquired resistance, offering potential in cancer therapies targeting FGFR.