- Synthesis and biological effects of small molecule enhancers for improved recombinant protein production in plant cell cultures
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Histone deacetylases are involved in chromatin remodelling and thus play a vital role in the epigenetic regulation of gene expression. HDAC inhibitors alter the acetylation status of histone and non-histone proteins to regulate various cellular events suc
- Rebelo, Bárbara A.,Santos, Rita B.,Ascenso, Osvaldo S.,Nogueira, Ana Cláudia,Lousa, Diana,Abranches, Rita,Ventura, M. Rita
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- Modified cap group suberoylanilide hydroxamic acid histone deacetylase inhibitor derivatives reveal improved selective antileukemic activity
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A series of SAHA cap derivatives was designed and prepared in good-to-excellent yields that varied from 49% to 95%. These derivatives were evaluated for their antiproliferative activity in several human cancer cell lines. Antiproliferative activity was observed for concentrations varying from 0.12 to >100 μM, and a molecular modeling approach of selected SAHA derivatives, based on available structural information of human HDAC8 in complex with SAHA, was performed. Strikingly, two compounds displayed up to 10-fold improved antileukemic activity with respect to SAHA; however, these compounds displayed antiproliferative activity similar to SAHA when assayed against solid tumor-derived cell lines. A 10-fold improvement in the leukemic vs peripheral blood mononuclear cell therapeutic ratio, with no evident in vivo toxicity toward blood cells, was also observed. The herein-described compounds and method of synthesis will provide invaluable tools to investigate the molecular mechanism responsible for the reported selectively improved antileukemic activity.
- Salmi-Smail, Chanaz,Fabre, Aurélie,Dequiedt, Franck,Restouin, Audrey,Castellano, Rémy,Garbit, Slaveia,Roche, Philippe,Morelli, Xavier,Brunel, Jean Michel,Collette, Yves
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experimental part
p. 3038 - 3047
(2010/09/07)
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