Famitinib (SHR1020)

Famitinib (SHR1020), an orally active multi-targeted kinase inhibitor, inhibits the activity of c-kit, VEGFR-2 and PDGFRβ with IC50 values of 2.3 nM, 4.7 nM and 6.6 nM, respectively[1]. Famitinib exerts powerful antitumor activity in human gastric cancer cells and xenografts.Famitinib triggers apoptosis[2].

Signaling Pathways >> Apoptosis >> Apoptosis

Research Areas >> Cancer

Signaling Pathways >> Protein Tyrosine Kinase/RTK >> PDGFR

Signaling Pathways >> Protein Tyrosine Kinase/RTK >> VEGFR

VEGFR-2:4.2 nM (IC50)

PDGFRβ:6.6 nM (IC50)

c-kit:2.3 nM (IC50)

"Famitinib inhibits the VEGF-induced proliferation, migration and tubule formation of human umbilical vein endothelial cells, and micro-vessel spouting from matrigel-embedded rat aortic rings[1]. Famitinib inhibits cell proliferation by inducing cell cycle arrest at the G2/M phase and causes cell apoptosis in a dose-dependent manner in gastric cancer cell lines. Famitinib (0.6-20.0 µM) inhibits gastric cancer cell growth in a dose-dependent manner[2]." Cell Proliferation Assay[3] Cell Line: Human gastric cancer cells BGC-823 and MGC-803 Concentration: 0, 0.6, 1.25, 2.5, 5.0, 10.0 and 20.0 µM Incubation Time: 24, 48 and 72 hours Result: Inhibited cell growth in a dose-dependent manner. The IC50 values in BGC-823 and MGC-803 cells were 3.6 and 3.1 µM, respectively.

"Famitinib exhibits broad and potent anti-tumor activity, leading to regression or growth arrest of various established xenografts derived from human tumor cell lines [1]. Famitinib significantly slows tumor growth in vivo via inhibition of angiogenesis in BGC-823 xenograft models. Famitinib (50 and 100 mg/kg;gavage) reduces xenograft growth in vivo via inhibition of angiogenesis[2]." Animal Model: 18-20 g female BALB/c athymic nu/nu mice (age, 6–8 weeks) bearing BGC-823 xenografts[4] Dosage: 50 and 100 mg/kg Administration: Gavage, once daily for 3 weeks Result: Both doses exerted a similar inhibitory power, but greater toxicity was observed. Inhibited BGC-823 xenograft growth (tumor volume, 395.2 vs. 2,690.5 mm3), and animal weights were similar between groups (21.6 vs. 18.7 g).

[1]. Liguang Lou, et al. Abstract 3604: Preclinical antitumor study of famitinib, an orally available multi-targeted kinase inhibitor of VEGFR/PDGFR/c-Kit in phase I clinical trials.

[2]. Sai Ge, et al. Famitinib exerted powerful antitumor activity in human gastric cancer cells and xenografts. Oncol Lett. 2016 Sep;12(3):1763-1768.