小分子对 HEK293 细胞中 RNA 连接酶 Rlig1 基因敲除的致死作用

IF 4.2 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Florian M. Stumpf, Silke Müller and Andreas Marx
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引用次数: 0

摘要

Rlig1 是人类发现的第一个利用经典 5'-3' 连接机制的 RNA 连接酶。它在所有脊椎动物中都是一种保守的酶,并在各种癌症中发生突变。在对 Rlig1 的初步研究中,我们观察到 Rlig1 基因敲除(KO)的 HEK293 细胞比 WT 细胞对月桂二酮诱导的应激更敏感,这代表了一种化学合成致死性。为了进一步了解 Rlig1 可能参与的生物学途径,我们的目标是鉴定新的合成致死小分子。为此,我们利用由 13,000 多种生物活性小分子组成的化合物库进行了高通量筛选。通过这种方法,我们鉴定出了与 Rlig1-KO 结合具有合成致死性的化合物。除了上述与甲萘醌结构不同的新型化合物外,我们还测试了多种含有萘醌支架的小分子化合物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Identification of small molecules that are synthetically lethal upon knockout of the RNA ligase Rlig1 in human cells†

Identification of small molecules that are synthetically lethal upon knockout of the RNA ligase Rlig1 in human cells†

Rlig1 is the first RNA ligase identified in humans utilising a classical 5′–3′ ligation mechanism. It is a conserved enzyme in all vertebrates and is mutated in various cancers. During our initial research on Rlig1, we observed that Rlig1-knockout (KO) HEK293 cells are more sensitive to the stress induced by menadione than their WT counterpart, representing a type of chemical synthetic lethality. To gain further insight into the biological pathways in which Rlig1 may be involved, we aimed at identifying new synthetically lethal small molecules. To this end, we conducted a high-throughput screening with a compound library comprising over 13 000 bioactive small molecules. This approach led to the identification of compounds that exhibited synthetic lethality in combination with Rlig1-KO. In addition to the aforementioned novel compounds that diverge structurally from menadione, we also tested multiple small molecules containing a naphthoquinone scaffold.

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来源期刊
CiteScore
6.10
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128
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