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GSK2126458 is a potent inhibitor of common activating mutants of p110α, p110β, p110γ, p110δ, mTORC1 and mTORC2 with Ki of 0.019 nM, 0.13 nM, 0.024 nM, 0.06 nM, 0.18 nM and 0.3 nM, respectively. PI3K, often overexpressed in cancer cells, plays a crucial role in tumor cell regulation and survival. GSK2126458 inhibited AKT signaling and it showed effects on p70S6K and rpS6 signaling with effects resembling those of rapamycin. PI3K inhibitor GSK2126458 causes a significant reduction in the levels of pAkt-S473 in T47D and BT474 cells with an IC50 of 0.41 nM and 0.18 nM, respectively. GSK2126458 leads to a G1 cell cycle arrest and produces the inhibitory effect on cell proliferation in a large panel of cell lines, including T47D and BT474 breast cancer lines with IC50 of 3 nM and 2.4 nM, respectively. GSK2126458 had a width of inhibitory activity for potent cell growth and induced cell death in various human tumor cells.
| Cell Experiment | |
|---|---|
| Cell lines | BT474, HCC1954 and T-47D cells |
| Preparation method | BT474, HCC1954 and T-47D (human breast) were cultured in RPMI-1640 containing 10% fetal bovine serum at 37 in 5% CO2 incubator.Cells were then plated in 384 well black flat bottom polystyrene (Greiner #781086) in 48 µl of culture media per well at 1,000 cells/well. Following 72 hours of incubation with compounds each plate was developed and read. CellTiter-Glo reagent was added to assay plates using a volume equivalent to the cell culture volume in the wells. |
| Concentrations | 0~1μ M |
| Incubation time | 72h |
| Animal Experiment | |
|---|---|
| Animal models | BT474 human tumor xenografts in mice |
| Formulation | DMSO/H2O |
| Dosages | 0.3, 1 and 3mg/kg once daily for 5 days/week for 3 weeks |
| Administration | oral |
| Molecular Weight | 505.5 |
| Formula | C25H17F2N5O3S |
| CAS Number | 1086062-66-9 |
| Solubility (25°C) | DMSO 100 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Related PI3K Products |
|---|
| AS605240
AS-605240 is a potent and selective inhibitor of PI 3-kinase γ (PI3Kγ) with an IC50 of 8 nM. |
| BEZ235
BEZ235 (NVP-BEZ235) is a potent dual PI3K and mTOR inhibitor of p110α, p110γ, p110δ and p110β with IC50 of 4 nM, 5 nM, 7 nM and 75 nM, respectively. |
| BKM120 (Buparlisib)
BKM120 (NVP-BKM120) is a potent and highly specific oral pan-class I PI3K inhibitor. |
| GDC-0941 (Pictilisib)
GDC-0941 is a selective and potent inhibitor of Class I PI3K, p110a IC50=0.003uM, U87MG IC50=0.95μM. |
| AS-252424
AS-252424 is a furan-2-ylmethylene thiazolidinedione as a selective ATP-competitive PI3Kγ inhibitor with IC50 with 33 nM. |
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