La thrichostatine A (TSA) inhibe l'histone désacétylase aux concentrations nanomolaires ; l'hyperacétylation des histones qui en résulte provoque la relaxation de la chromatine et la modulation de l'expression génique. Peut être impliquée dans la progression du cycle cellulaire de plusieurs types de cellules, induisant l'arrêt de la croissance cellulaire au niveau des phases G et G/M ; peut induire l'apoptose. Améliore l'efficacité des agents anticancéreux qui ciblent l'ADN. La trichostatine A sert de modificateur épigénétique.
La thrichostatine A inhibe l′histone désacétylase aux concentrations nanomolaires ; l′hyperacétylation des histones qui en résulte provoque la relaxation de la chromatine et la modulation de l′expression génique.
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