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Genomic stability of prostate cancers with homologous recombination gene alterations

November 17, 2023

This study investigates associations between markers of genomic instability and genomic defects in genes associated with homologous recombination (HR) in a cohort of 431 prostate cancer specimens. Prostate cancers with HR-altered status showed higher genomic instability, with increased rates of microsatellite instability (MSI)-high and tumor mutational burden (TMB)-high tumors, particularly among cases with BRCA1/2 alterations. These results may signify selection of HR pathways gene mutations in MSI-H tumors and warrants further investigation.