Lost in translation? Ten years of development of histone deacetylase inhibitors in acute myeloid leukemia and myelodysplastic syndromes

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Abstract
Introduction: Epigenetic changes and mutations in epigenetic modifiers characterize and likely drive many cases of acute myeloid leukemia and myelodysplastic syndrome. Development of DNA methyltransferase inhibitors has been most successful in these diseases. While many epigenetic marks are potential targets of cancer therapies, histone deacetylase inhibitors (HDACi) have undergone the most advanced development to date.Area Covered: In this review, the authors describe and discuss the biology and the clinical results of HDAC inhibitors in the settings of myeloid malignancies.Expert opinion: While significant results have been achieved in lymphoma and myeloma, efficacy remains limited in myeloid malignancies for both single agent and HDACi based combination regimens. The redundancy and the pleiotropic activity of HDACi (on both histone and non-histone proteins) are key factors that have limited to date the selection of patients and the design of robust biomarkers. Recent advances in biology (mechan...

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