BO-264

2408648-20-2

353.38

DMSO : 50 mg/mL (141.49 mM; Need ultrasonic)

Apoptosis; Protein Tyrosine Kinase/RTK

BO-264 is a highly potent and orally active transforming acidic coiled-coil 3 (TACC3) inhibitor with an IC₅₀ of 188 nM and a K_d of 1.5 nM. BO-264 specifically blocks the function of FGFR3-TACC3 fusion protein. BO-264 induces spindle assembly checkpoint (SAC)-dependent mitotic arrest, DNA damage and apoptosis. BO-264 has broad-spectrum antitumor activity^[1]. IC50 & Target: IC50: 188 nM (Transforming acidic coiled-coil 3 (TACC3))^[1]
Kd: 1.5 nM (TACC3)^[1] In Vitro: BO-264 (500 nM; 48 hours; JIMT-1 cells) treatment induces a prominent increase (from 4.1% to 45.6%) in the fraction of apoptotic cells as assessed by Annexin V/PI staining^[1].
BO-264 (500 nM; 24 hours; RT112 cells) treatment decreases ERK1/2 phosphorylation, which is a marker for activated FGFR signaling along with a strong mitotic arrest^[1].
BO-264 inhibits cell viability with IC₅₀ values of 190 nM, 160 nM, 120 nM, 130 nM and 360 nM for JIMT-1, HCC1954, MDA-MB-231, MDA-MB-436 and CAL51, respectively. BO-264 specifically targets breast cancer cells while sparing normal cells. BO-264 treatment significantly reduces the average colony number of JIMT-1 cells^[1].
BO-264 inhibits the viability of cancer cells with FGFR3-TACC3 fusion with IC₅₀ values of 0.3 uM and 3.66 uM for RT112 and RT4, respectively^[1].
BO-264 exhibits a remarkable anti-cancer activity against more than 90% of the NCI267 60 human cancer cell lines representing nine different subpanels with GI₅₀ values less than 1 uM^[1].
BO-264 induces mitotic arrest (prominent induces p-Histone H3 (Ser10)), apoptosis (cleaved PARP) and DNA damage, causes aberrant spindle formation and reduces centrosomal localization of TACC3 in JIMT-1 cells^[1]. In Vivo: BO-264 (25 mg/kg; oral administration; daily; for 3-4 weeks; female nude mice) treatment shows a significant suppression of tumor growth. BO-264 is well tolerated since treatment does not causes a significant body weight loss and organ toxicity^[1].