RT Journal Article T1 A Genetic Map of the Response to DNA Damage in Human Cells. A1 Olivieri, Michele A1 Cho, Tiffany A1 Álvarez-Quilón, Alejandro A1 Li, Kejiao A1 Schellenberg, Matthew J A1 Zimmermann, Michal A1 Hustedt, Nicole A1 Rossi, Silvia Emma A1 Adam, Salomé A1 Melo, Henrique A1 Heijink, Anne Margriet A1 Sastre-Moreno, Guillermo A1 Moatti, Nathalie A1 Szilard, Rachel K A1 McEwan, Andrea A1 Ling, Alexanda K A1 Serrano-Benitez, Almudena A1 Ubhi, Tajinder A1 Feng, Sumin A1 Pawling, Judy A1 Delgado-Sainz, Irene A1 Ferguson, Michael W A1 Dennis, James W A1 Brown, Grant W A1 Cortés-Ledesma, Felipe A1 Williams, R Scott A1 Martin, Alberto A1 Xu, Dongyi A1 Durocher, Daniel K1 CRISPR K1 DNA damage K1 DNA repair K1 DNA-damaging agents K1 cancer therapeutics K1 functional genomics K1 genome stability K1 mechanism-of-action AB The response to DNA damage is critical for cellular homeostasis, tumor suppression, immunity, and gametogenesis. In order to provide an unbiased and global view of the DNA damage response in human cells, we undertook 31 CRISPR-Cas9 screens against 27 genotoxic agents in the retinal pigment epithelium-1 (RPE1) cell line. These screens identified 890 genes whose loss causes either sensitivity or resistance to DNA-damaging agents. Mining this dataset, we discovered that ERCC6L2 (which is mutated in a bone-marrow failure syndrome) codes for a canonical non-homologous end-joining pathway factor, that the RNA polymerase II component ELOF1 modulates the response to transcription-blocking agents, and that the cytotoxicity of the G-quadruplex ligand pyridostatin involves trapping topoisomerase II on DNA. This map of the DNA damage response provides a rich resource to study this fundamental cellular system and has implications for the development and use of genotoxic agents in cancer therapy. YR 2020 FD 2020-07-09 LK http://hdl.handle.net/10668/15917 UL http://hdl.handle.net/10668/15917 LA en DS RISalud RD Apr 11, 2025