PTEN action in leukemia dictated by the tissue microenvironment


PTEN encodes a lipid phosphatase that is underexpressed in many cancers owing to deletions, mutations or gene silencing1–3. PTEN dephosphorylates phosphatidylinositol 3,4,5-triphosphate (PIP3), thereby opposing the activity of class I phosphatidylinositol 3-kinases (PI3Ks) that mediate growth and survival factors signaling through PI3K effectors such as AKT… (More)


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