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An orally active, selective MEK inhibitor with potential antineoplastic activity. MEK inhibitor AZD8330 specifically inhibits mitogen-activated protein kinase kinase 1 (MEK or MAP/ERK kinase1), 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. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C69143\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C69143\' NCI Thesaurus)
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