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The phosphatidylinositol-3-kinase/protein kinase B (PI3K/Akt) signaling pathway is the most frequently mutated or overexpressed signaling abnormality in human cancer. PI3K is activated by a number of mechanisms, including growth factor receptors, integrins, and Ras, converting phosphatidylinositols
Powis et al. (Mon,) studied this question.