[An agent that inhibits both mitogen-activated protein kinase kinases 1 and 2 (MEK1 and MEK2), substrates of Raf and phosphorylates extracellular signal-regulated kinases 1 and 2 (ERK1 and ERK2), preventing phosphorylation and activation of the Mitogen-Activated Protein Kinase (MAPK) pathways, involved with signal transduction pathways and tumor proliferation. ( NCI )]
UMLS (NCI) C1134610 - Organic Chemical
- Pharmacologic Substance