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

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2024

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European Union (EU): AMP-Alarm
European Union (EU): Grant 101019280

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RSC Chemical Biology. Royal Society of Chemistry (RSC). 2024, 5(9), S. 833-840. eISSN 2633-0679. Verfügbar unter: doi: 10.1039/d4cb00125g

Zusammenfassung

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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540 Chemie

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ISO 690STUMPF, Florian M., Silke MÜLLER, Andreas MARX, 2024. Identification of small molecules that are synthetically lethal upon knockout of the RNA ligase Rlig1 in human cells. In: RSC Chemical Biology. Royal Society of Chemistry (RSC). 2024, 5(9), S. 833-840. eISSN 2633-0679. Verfügbar unter: doi: 10.1039/d4cb00125g
BibTex
@article{Stumpf2024Ident-70708,
  year={2024},
  doi={10.1039/d4cb00125g},
  title={Identification of small molecules that are synthetically lethal upon knockout of the RNA ligase Rlig1 in human cells},
  number={9},
  volume={5},
  journal={RSC Chemical Biology},
  pages={833--840},
  author={Stumpf, Florian M. and Müller, Silke and Marx, Andreas}
}
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