MEK inhibitor BI 3011441

**Semantic type:** Pharmacologic Substance

**Definition:** An orally bioavailable, small-molecule, allosteric inhibitor of mitogen-activated protein kinase kinase (MAP2K; MAPKK; MEK), with potential antineoplastic activity. Upon oral administration, MEK inhibitor BI 3011441 specifically targets, binds to and inhibits the catalytic activity of MEK, thereby inhibiting the activation of MEK-dependent effector proteins including extracellular signal-regulated kinase (ERK) and inhibits the proliferation of tumor cells in which the RAS/RAF/MEK/ERK signaling pathway is overactivated. The threonine/tyrosine protein kinase MEK plays a key role in the RAS/RAF/MEK/ERK signaling pathway, which is frequently upregulated in a variety of tumor cell types and regulates key cellular activities including cell growth, proliferation, survival, differentiation and apoptosis.

**Synonyms:** - BENZAMIDE, N-CYCLOPROPYL-3-(5-((2-FLUORO-4-IODOPHENYL)AMINO)-3,4,6,7-TETRAHYDRO-6,8-DIMETHYL-2,4,7-TRIOXOPYRIDO(4,3-D)PYRIMIDIN-1(2H)-YL)- - BI 3011441 - BI-3011441 - BI3011441 - LNP3794