6 Cerrato Cerrato A A Morra Morra F F Celetti Celetti A A Use of poly ADP-ribose polymerase (PARP) inhibitors in cancer cells bearing DDR defects: the rationale for their inclusion in the clinic Use of poly ADP-ribose polymerase (PARP) inhibitors in cancer cells bearing DDR defects: the rationale for their inclusion in the clinic J Exp Clin Cancer Res J Exp Clin Cancer Res 2016 2016 35 35 179 179 27884198 27884198. Here, PARP1 is linked to cancer.