The respective protein expression at the cell surface of CD95 was enhanced by 1.9-fold change (FC), while CD95L was upregulated by 2.7-FC after gemcitabine treatment (20 μM) compared to the surface expression of CD95 and CD95L in the untreated pancreatic tumor cells (Figure 2B). The gene discussed is FAS; the disease is pancreatic neoplasm.