WYE-687

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Description

WYE-687 is a novel ATP-competitive and selective inhibitors of the mammalian target of rapamycin (mTOR). The mammalian target of rapamycin (mTOR) is centrally involved in cell growth, metabolism, and angiogenesis. WYE-687 as one of the pyrazolopyrimidine ATP-competitive mTOR inhibitors, with significant selectivity over phosphatidylinositol 3-kinase (PI3K) isofoms (>100-fold). Unlike the rapalogs, these inhibitors acutely blocked substrate phosphorylation by mTORC1 and mTORC2 in vitro and in cells in response to growth factor, amino acids, and hyperactive PI3K/AKT. Unlike the inhibitors of PI3K or dual-pan PI3K/mTOR, cellular inhibition of P-S6K1 (T389) and P-AKT (S473) by the pyrazolopyrimidines occurred at significantly lower inhibitor concentrations than those of P-AKT (T308) (PI3K-PDK1 readout), showing mTOR selectivity in cellular setting.

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