Figure 7. Photographs of multiwell plates stained with crystal violet showing NDV-LS cytotoxicity in pancreatic cancer cell lines. Unstained wells represent those in which total cytotoxicity and lysis had occurred. The far left well in each row was a negative control that received no NDV. Asterisks (*) mark the wells where the minimum cytotoxic dose of NDV was seen for PANC-1, BxPC3, SU.86.86, PL45, Capan-1, Panc 10.05, and CFPAC-1 cultures. Acetylated trypsin had been present in all wells shown. At 50,000 PFU, UV-inactivated NDV-LS had little effect on PL45 cell viability.