[A menaquinone compound and form of vitamin K2 with potential antineoplastic activity. Menatetrenone may act by modulating the signalling of certain tyrosine kinases, thereby affecting several transcription factors including c-myc and c-fos. This agent inhibits tumor cell growth by inducing apoptosis and cell cycle arrest. ( NCI )] (UMLS (NCI) C0065936) =Organic Chemical; Pharmacologic Substance; Vitamin