NCIt related terms : (2E,4E,6R)-7-[4-(Dimethylamino)phenyl]-N-hydroxy-4,6-dimethyl-7-oxo-2,4-heptadienamide;
NCIt definition : A natural derivative of dienohydroxamic acid isolated from species of the bacterial
genus Streptomyces. Trichostatin A (TSA) reversibly and specifically inhibits histone
deacetylases, resulting in hyperacetylation of core histones which modulate chromatin
structure. The increase in histone acetylation promotes selective gene transcription
and the inhibition of tumor growth. This agent is a potent inducer of tumor cell growth
arrest, differentiation and apoptosis in a variety of transformed cells in culture
and in tumor-bearing animals. (NCI04);