Identification of genes affecting the toxicity of anti-cancer drug bortezomib by genome-wide screening in S. pombe.

Identification of genes affecting the toxicity of anti-cancer drug bortezomib by genome-wide screening in S. pombe.
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DOI:
10.1371/journal.pone.0022021
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Yanagida M
Yanagida M
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Takeda K;Mori A;Yanagida M

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硼替佐米/PS-341/万珂是一种蛋白酶体抑制剂,广泛用于治疗多发性骨髓瘤。虽然提出了药物细胞毒性的几种机制,但实际机制仍然难以捉摸。我们的目的是确定影响硼替佐米在裂殖酵母粟酒裂殖酵母中细胞毒性的基因,因为药物抑制这种生物体的细胞分裂周期,如蛋白酶体突变体。在筛选的2815个基因(占总ORF的56%)中,鉴定了19个基因,其缺失诱导硼替佐米的强合成致死性。这19个基因的产物包括4个泛素酶和1个核蛋白酶体因子,其中13个在人类中是保守的。我们的研究结果将为了解硼替佐米在细胞内的作用提供有用的信息。
Bortezomib/PS-341/Velcade, a proteasome inhibitor, is widely used to treat multiple myeloma. While several mechanisms of the cytotoxicity of the drug were proposed, the actual mechanism remains elusive. We aimed to identify genes affecting the cytotoxicity of Bortezomib in the fission yeast S.pombe as the drug inhibits this organism's cell division cycle like proteasome mutants. Among the 2815 genes screened (covering 56% of total ORFs), 19 genes, whose deletions induce strong synthetic lethality with Bortezomib, were identified. The products of the 19 genes included four ubiquitin enzymes and one nuclear proteasome factor, and 13 of them are conserved in humans. Our results will provide useful information for understanding the actions of Bortezomib within cells.
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