Ludmila Prokunina-Olsson and colleagues report a fine-mapping and association analysis of germline variants in the APOBEC3 region associated with cancer risk. They identify two variants with differential effects in bladder and breast cancer, and their in vitro results suggest that environmental exposures may induce tissue-specific APOBEC mutagenesis and contribute to oncogenesis in carriers of APOBEC3 risk variants.
- Candace D Middlebrooks
- A Rouf Banday
- Ludmila Prokunina-Olsson
