PI3′-Kinase Inhibition Forestalls the Onset of MEK1/2 Inhibitor Resistance in <i>BRAF</i> -Mutated Melanoma

Abstract excerpt

UNLABELLED: Phosphatidylinositide 3' (PI3')-lipid signaling cooperates with oncogenic BRAF(V600E) to promote melanomagenesis. Sustained PI3'-lipid production commonly occurs via silencing of the PI3'-lipid phosphatase PTEN or, less commonly, through mutational activation of PIK3CA, encoding the 110-kDa catalytic subunit of PI3'-kinase-α (PI3Kα). To define the PI3K catalytic isoform dependency of BRAF-mutated...

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