BEZ235 | CAS:915019-65-7

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Name:BEZ235; Dactolisib; NVP-BEZ235
Cat. No. :CS-0080
CAS No. :915019-65-7
Formula:C30H23N5O
M. Wt. : 469.54
Solubility:DMSO: 8.75 mg/mL

BEZ235 is a dual pan-class I PI3K and mTOR kinase inhibitor with IC50 of 4 nM/5 nM/7 nM/75 nM, and 20.7 nM for p110α/p110γ/p110δ/p110β and mTOR, respectively.IC50 & Target: IC50: 4 nM (p110α), 5 nM (p110γ), 7 nM (p110δ), 75 nM (p110β), 20.7 nM (mTOR)[1]In Vitro: BEZ235 (NVP-BEZ235) potently inhibits PI3K in an ATP Competitive Manner. NVP-BEZ235 (250 nM) significantly reduced the phosphorylation levels of the mTOR activated kinase p70S6K. NVP-BEZ235 also leads to a reduction of S235/S236P-RPS6 levels with an IC50 of 6.5 nM, suggesting that NVP-BEZ235 can directly inhibit the mTOR kinase, as the kinase domain of mTOR is highly homologous to the one of class IA PI3K. The activity of NVP-BEZ235 against mTOR is confirmed using a biochemical mTOR K-LISA assay (IC50, 20.7 nM)[1]. The IC50s of NVP-BEZ235 for HCT116, DLD-1, and SW480 cell lines are 14.3±6.4, 9.0±1.5, and 12.0±1.6 nM, respectively[2].In Vivo: BEZ235 (NVP-BEZ235) (45 mg/kg, p.o.) treatment induces colonic tumor regression in a GEM model for sporadic PIK3CA wild-type CRC[2]. NVP-BEZ235 (45 mg/kg) is administered to MENX rats (n=2 each group) by oral gavage and animals are sacrificed 1 or 6 hours after treatment. Immunostains for P-AKT and P-S6 show considerable reduction of the two proteins, and particularly of P-S6, 6 hours after administration of NVP-BEZ235 when compares with PEG-treated rats. At 6 hours after treatment, the pituitary adenomas of NVP-BEZ235-treated rats has a proteomic profile significantly different from the tumors of placebo-treated rats[3].

Lee M, et al. Targeting PI3K/mTOR Signaling Displays Potent Antitumor Efficacy against Nonfunctioning Pituitary Adenomas. Clin Cancer Res. 2015 Jul 15;21(14):3204-15. Roper J, et al. The dual PI3K/mTOR inhibitor NVP-BEZ235 induces tumor regression in a genetically engineered mouse model of PIK3CA wild-type colorectal cancer. PLoS One, 2011, 6(9), e25132. Maira SM, et al. Identification and characterization of NVP-BEZ235, a new orally available dual phosphatidylinositol 3-kinase/mammalian target of rapamycin inhibitor with potent in vivo antitumor activity. Mol Cancer Ther, 2008, 7(7), 1851-1863.