Felix Dietlein, Lisa Thelen, Mladen Jokic, Ron D Jachimowicz, Laura Ivan, Gero Knittel, Uschi Leeser, Johanna van Oers, Winfried Edelmann, Lukas C Heukamp, H Christian Reinhardt
Here, we use a large-scale cell line-based approach to identify cancer cell-specific mutations that are associated with DNA-dependent protein kinase catalytic subunit (DNA-PKcs) dependence. For this purpose, we profiled the mutational landscape across 1,319 cancer-associated genes of 67 distinct cell lines and identified numerous genes involved in homologous recombination-mediated DNA repair, including BRCA1, BRCA2, ATM, PAXIP, and RAD50, as being associated with non-oncogene addiction to DNA-PKcs. Mutations in the mismatch repair gene MSH3, which have been reported to occur recurrently in numerous human cancer entities, emerged as the most significant predictors of DNA-PKcs addiction...
May 2014: Cancer Discovery