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white powder |
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C25H17F2N5O3S |
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505.5 |
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in stock |
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1086062-66-9 |
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99.5% |
Introduction
GSK2126458 is a highly selective and potent inhibitor of PI3K with Ki of 0.019 nM/0.13 nM/0.024 nM/0.06 nM and 0.18 nM/0.3 nM for p110α/β/δ/γ, mTORC1/2 , respectively. IC50 value: 0.019 nM/0.13 nM/0.024 nM/0.06 nM and 0.18 nM/0.3 nM (p110α/β/δ/γ, mTORC1/2) Target: p110α/β/δ/γ; mTORC1/2 in vitro: Target: GSK2126458 potently inhibits the activity of common activating mutants of p110α (E542K, E545K, and H1047R) found in human cancer with Ki of 8 pM, 8 pM and 9 pM, respectively . GSK2126458 causes a significant reduction in the levels of pAkt-S473 with remarkable potency in T47D and BT474 cells with IC50 of 0.41 nM and 0.18 nM, respectively. Furthermore, 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 potentiate the antiproliferative activity of DDR1-IN-1 in colorectal cancer cell lines. in vivo: In a BT474 human tumor xenograft model, GSK2126458 treatment results in a dose-dependent reduction in pAkt-S473 levels, and exhibited dose-dependent tumor growth inhibition at a low dose of 300 μg /kg. Besides, GSK2126458 shows low blood clearance and good oral bioavailability in four preclinical species (mouse, rat, dog, and monkey).
