Cell Splicing (IMAGE) Walter and Eliza Hall Institute Caption The ‘splicing’ mechanism in cancer cells allows them to repair their DNA and avoid the cell death caused by PARP inhibitor therapy, resulting in drug resistance. Under a microscope, DNA repair is visible as bright green spots ("foci") in the blue-stained cell DNA. Orange highlights actively growing cancer cells. Credit: WEHI Credit WEHI Usage Restrictions Free to share, must credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.