Chromatin modifications as therapeutic targets in MLL-rearranged leukemia.

Chromatin modifications as therapeutic targets in MLL-rearranged leukemia.
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DOI:
10.1016/j.it.2012.06.002
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发表时间:
2012-11
影响因子:
16.8
通讯作者:
Armstrong SA
Armstrong SA
中科院分区:
医学1区
文献类型:
--
作者:
Deshpande AJ;Bradner J;Armstrong SA

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MLL重排白血病是表观遗传格局紊乱的恶性肿瘤的例证。特定的染色质修饰有助于MLL融合基因驱动的致癌计划的永久化,这为治疗干预提供了新的途径。最近有报道称,使用针对组蛋白甲基转移酶DOT1L或乙酰组蛋白结合蛋白BRD4的小分子抑制剂进行概念验证研究,在临床前模型中显示出强大的抗MLL重排白血病活性。显然,针对这些和其他染色质相关蛋白靶点的小分子抑制剂的进一步开发将做出密集的努力。这些研究可能导致白血病和其他癌症的新一代急需的治疗方式的出现。
MLL-rearranged leukemias exemplify malignancies with perturbations of the epigenetic landscape. Specific chromatin modifications that aid in the perpetuation of MLL-fusion gene driven oncogenic programs are being defined, presenting novel avenues for therapeutic intervention. Proof-of-concept studies have recently been reported, using small-molecule inhibitors targeting the histone methyltransferase DOT1L or the acetyl-histone binding protein BRD4 showing potent activity against MLL-rearranged leukemias in pre-clinical models. It is apparent that intensive efforts will be made toward the further development of small-molecule inhibitors targeting these, and other chromatin-associated protein targets. These studies may lead to the advent of a new generation of much-needed therapeutic modalities in leukemia and other cancers.
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