FIIN-2

FIIN-2 is an irreversible inhibitor of FGFR with an IC50 of 3.1, 4.3, 27, and 45 nM for FGFR1, FGFR2, FGFR3 and FGFR4, respectively.

Research Areas >> Cancer

FGFR1:3.1 nM (IC50)

FGFR2:4.3 nM (IC50)

FGFR3:27 nM (IC50)

FGFR4:45 nM (IC50)

FIIN-2 potently inhibits WT FGFRs (EC50s in the 1- to 93-nM range) and the gatekeeper mutant of FGFR2 (EC50 of 58 nM). FIIN-2 also moderately inhibits EGFR, with an IC50 of 204 nM. FIIN-2 inhibits proliferation of FGFR1-4 Ba/F3 cells with EC50s in the single- to double-digit nanomolar range and are especially potent against FGFR2, with EC50s in the 1-nM range. FIIN-2 shows good potency against gatekeeper mutant V564F[1].

Treatment of fish in the embryonic state with either FIIN-2 causes defects to the posterior mesoderm similar to the phenotypes reported following genetic knockdown of FGFR or treatment with other reported FGFR inhibitors. FIIN-2 causes mild or severe phenotypes to the tail morphogenesis in all treated embryonic zebrafish[1].

TEL-FGFR2–transformed Ba/F3 cells are seeded in a 96-well plate and are treated with each concentration of the compounds. After 72 h the cells are assessed by MTS tetrazolium assay[1].

[1]. Tan L, et al. Development of covalent inhibitors that can overcome resistance to first-generation FGFR kinase inhibitors. Proc Natl Acad Sci U S A. 2014 Nov 11;111(45):E4869-4877.

Nintedanib (BIBF 1120) | Infigratinib (BGJ398) | AZD4547 | PD173074 | Erdafitinib(JNJ-42756493) | FGF-401 | SU 5402 | Heparan Sulfate | Lucitanib | LY2784544 | BLU554 | Dovitinib (TKI-258, CHIR-258) | Rogaratinib | LY2874455 | BLU-9931