Wellcome Trust Sanger Institute Jul 2 2025 For the first time, scientists have systematically studied the genetic effects of chemotherapy on healthy tissues. Researchers from the Wellcome Sanger Institute, the University of Cambridge, Cambridge University Hospitals NHS Foundation Trust (CUH) and their collaborators analysed blood cell genomes from 23 patients of all ages who had been treated with a range of chemotherapies. Published today (1 July) in Nature Genetics , the researchers show that