CTCs in Panc1, that had been labeled with a lentiviral reporter (7xTcf-eGFP/SV40-mCherry (7TGC)) prior to orthotopic injection as reported before, were analyzed by flowcytometry in RBC-depleted whole blood showing a noticeable trend for chemo agents (Gemcitibine and TRAIL) to drive tumor cells into the circulation when compared to vehicle control (Figure 7F) [25, 30]. This evidence concerns the gene TNFSF10 and neoplasm.