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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Differential protein acetylation induced by novel histone deacetylase inhibitors.

Histone deacetylase ( HDAC) inhibitors induce the hyperacetylation of nucleosomal histones in carcinoma cells resulting in the expression of repressed genes that cause growth arrest, terminal differentiation, and/or apoptosis. In vitro selectivity of several novel hydroxamate HDAC inhibitors including succinimide macrocyclic hydroxamates and the non-hydroxamate alpha-ketoamide inhibitors was investigated using isolated enzyme preparations and cellular assays. In vitro selectivity for the HDAC isozymes (HDAC1/2, 3, 4/3, and 6) was not observed for these HDAC inhibitors or the reference HDAC inhibitors, MS-275 and SAHA. In T24 and HCT116 cells these compounds caused the accumulation of acetylated histones H3 and H4; however, the succinimide macrocyclic hydroxamates and the alpha-ketoamides did not cause the accumulation of acetylated alpha-tubulin. These data suggest "selectivity" can be observed at the cellular level with HDAC inhibitors and that the nature of the zinc-chelating moiety is an important determinant of activity against tubulin deacetylase.[1]

References

  1. Differential protein acetylation induced by novel histone deacetylase inhibitors. Glaser, K.B., Li, J., Pease, L.J., Staver, M.J., Marcotte, P.A., Guo, J., Frey, R.R., Garland, R.B., Heyman, H.R., Wada, C.K., Vasudevan, A., Michaelides, M.R., Davidsen, S.K., Curtin, M.L. Biochem. Biophys. Res. Commun. (2004) [Pubmed]
 
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