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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 |
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PI3Kγ inhibitor AZ2 is a highly selective PI3Kγ inhibitor (The pIC50 value for PI3Kγ is 9.3). |
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NIBR-17 is a pan-class I PI3K inhibitor with suitable pharmacokinetic properties and inhibits tumor growth. |
| RV-1729
RV-1729 is an inhibitor of the phosphatidylinositol 3-kinase-δ (PI3Kδ). |
| Vulolisib
Vulolisib is a potent and orally active phosphatidylinositol 3-kinase (PI3K) inhibitor, with IC50 values of 0.2 nM, 168 nM, 90 nM and 49 nM for PI3Kα, PI3Kβ, PI3Kγ and PI3Kδ, respectively. |
| Vps34-IN-4
Vps34-IN-4 is a potent, selective, and orally active inhibitor of VPS34. |
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