product name BGT226 (NVP-BGT226)
Description: BGT226 (also known as NVP-BGT226) is a novel class I PI3K/mTOR inhibitor for PI3Kα/β/γ with IC50 of 4 nM/63 nM/38 nM. NVP-BGT226 is a novel dual class PI3K/mammalian target of rapamycin (mTOR) inhibitor. When used NVP-BGT226, cell viability decreased within 24-72 h after exposure to about 50% compared to untreated control cells in a concentration- but not time-dependent manner. The dual PI3K/mTOR inhibitor NVP-BGT226 induces G0/G1 arrest and acts partially via downregulation of Survivin. NVP-BGT226 potently inhibited growth activity of cell lines, including SCC4, TU183 and KB cell lines with the IC50 ranging from 7.4 to 30.1 nM.
References: Tumour Biol. 2012 Jun;33(3):757-65; Clin Cancer Res. 2011 Nov 15;17(22):7116-26.
650.6
Formula
C28H25F3N6O2.C4H4O4
CAS No.
1245537-68-1
Storage
-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility (In vitro)
DMSO: 30 mg/mL (46.11 mM)
Water: <1 mg/mL
Ethanol: <1 mg/mL
Solubility (In vivo)
30% PEG400+0.5% Tween80+5% Propylene glycol: 30mg/mL
Chemical Name
(Z)-but-2-enedioic acid;8-(6-methoxypyridin-3-yl)-3-methyl-1-[4-piperazin-1-yl-3-(trifluoromethyl)phenyl]imidazo[4,5-c]quinolin-2-one
other peoduct :
| In Vitro | Kinase Assay:
Cell Assay: NCI-H929, U266, RPMI-8226 and OPM2 MM cells are seeded in 96-well plates at a concentration of 1.5 × 104 cells/well in RPMI medium supplemented with 10% fetal bovine serum with or without NVP-BGT226 that is to be tested. After 36 hours, BrdU-labelling solution is added (final concentration: 10 μM), and cells are cultured for another 12 hours in a humidified atmosphere (37 °C/5% CO2). Then, the plates are centrifuged (10 min, 300 g), and the supernatants are discarded. The plates are dried at 60 °C for 2 hours. After fixation with ethanol/HCl for 30 min at -20 °C, the DNA is partially digested by nuclease treatment for 30 min at 37 °C. The cells are washed three times with medium and incubated with anti-BrdU-POD labelling solution for 30 min at 37 °C. The anti-POD solution is removed and the cells are washed three times with washing buffer. The ABTS substrate solution is added, and absorbance is measured in a microplate reader at 405 nm with a reference wave length of 490 nm. The anti-proliferative and pro-apoptotic effects of NVP-BGT226 are independent of bcr-abl status. The activation of the AKT/mTOR signal cascade is suppressed by NVP-BGT226 in a concentration- and time-dependent manner. Flow cytometric analysis exhibits an accumulation of cells in the G(0)-G(1) phase with concomitant loss in the S-phase. NVP-BGT226 displays potent growth-inhibitory activity against all tested cell lines including SCC4, TU183 and KB cell lines with the IC50 ranging from 7.4 to 30.1 nM. Notably, both Detroit 562 and HONE-1 cells, which express PIK3CA mutation H1047R, are still sensitive to the growth-inhibitory effect of NVP-BGT226 treatment. In addition, the sensitivity to NVP-BGT226 between HONE-1 cells and its cisplatin-resistant variant is almost identical. Results of the terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay and the analysis of caspase 3/7 and PARP indicates that NVP-BGT226 induces cancer cell death through an apoptosis-independent pathway. NVP-BGT226 induces autophagy as indicated by the aggregation and upregulation of the microtubule-associated protein light chain 3B-II, and p62 degradation. Gene silencing of Beclin1 or cotreatment of the autophagosome inhibitor, 3-methyladenine, inhibits the NVP-BGT226-induced autophagy and leads to the retrieval of colony survival. |
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| In Vivo | In a xenografted animal model, NVP-BGT226 significantly delays tumor growth in a dose-dependent manner, along with suppressed cytoplasmic expression of p-p70 S6 kinase and the presence of autophagosome formation. NVP-BGT226 inhibits tumor growth in a dose-dependent manner in a FaDu cell xenografted mouse model. Oral administration of NVP-BGT226 at 2.5 and 5 mg/kg for 3 weeks causes 34.7% and 76.1% reduction of the tumor growth on day 21, respectively (compared with control). NVP-BGT226 displays comparable inhibition against tumor growth to rapamycin. The final volume of both groups is significantly smaller than those treated with LY294002 (a PI3K inhibitor) or the control. |
| Animal model | Human FaDu xenografted mice |
| Formulation & Dosage | Dissolved in 90% N -methyl-2-pyrrolidone (NMP)/10% PEG300.; 5 mg/kg; oral administration |
| References | [1] Markman B, et al. Ann Oncol, 2012, 23(9), 2399-2408.; [2] Chang KY, et al. Clin Cancer Res, 2011, 17(22), 7116-7126. |
