NCIt definition : An orally active, selective MEK inhibitor with potential antineoplastic activity.
MEK inhibitor GDC-0623 specifically inhibits mitogen-activated protein kinase kinase
(MEK or MAP/ERK kinase), resulting in inhibition of growth factor-mediated cell signaling
and tumor cell proliferation. MEK is a key component of the RAS/RAF/MEK/ERK signaling
pathway that regulates cell growth; constitutive activation of this pathway has been
implicated in many cancers.;