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Aurora A Kinase Inhibition Selectively Synergizes with Histone Deacetylase Inhibitor through Cytokinesis Failure in T-cell Lymphoma

机译:Aurora A激酶抑制作用与组蛋白去乙酰化酶抑制剂通过细胞分裂在T细胞淋巴瘤中的选择性协同作用。

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摘要

PurposeAurora A kinase (AAK) is expressed exclusively during mitosis, and plays a critical role in centrosome duplication and spindle formation. Alisertib is a highly selective AAK inhibitor that has demonstrated marked clinical activity of alisertib across a spectrum of lymphomas, though particularly in patients with T-cell lymphoma (TCL). We sought to compare and contrast the activity of alisertib in preclinical models of B-cell lymphoma (BCL) and TCL, and identify combinations worthy of clinical study. High-throughput screening of pralatrexate, the proteasome inhibitor (ixazomib), and the histone deacetylase (HDAC) inhibitor (romidepsin) revealed that only romidepsin synergized with alisertib, and only in models of TCL. We discovered that the mechanism of synergy between AAK inhibitors and HDAC inhibitors appears to be mediated through cytokinesis failure.
机译:目的极光A激酶(AAK)仅在有丝分裂期间表达,并且在中心体复制和纺锤体形成中起关键作用。 Alisertib是一种高度选择性的AAK抑制剂,尽管在T细胞淋巴瘤(TCL)患者中尤为突出,但已证明其在各种淋巴瘤中均具有明显的临床活性。我们试图比较和对比alisertib在B细胞淋巴瘤(BCL)和TCL的临床前模型中的活性,并确定值得临床研究的组合。高通量筛查了普拉曲氨酯,蛋白酶体抑制剂(ixazomib)和组蛋白脱乙酰基酶(HDAC)抑制剂(romidepsin),发现只有罗米地辛与alisertib协同作用,并且仅在TCL模型中起作用。我们发现AAK抑制剂和HDAC抑制剂之间协同作用的机制似乎是通过胞质分裂失败介导的。

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