Histone Deacetylase and Microtubules as Targets for the Synthesis of Releasable Conjugate Compounds

Design and synthesis of an HDAC inhibitor and its merger with three tubulin binders to create releasable conjugate compounds is described. The biological evaluation includes: a) in vitro reactivity with glutathione, b) antiproliferative activity, c) cell cycle analysis and d) quantification of protein acetylation. The cellular pharmacology study indicated that the HDAC-inhibitor-drug conjugates retained antimitotic and proapoptotic activity with a reduced potency