TNFSF10 and colorectal cancer: Hypoxia (0.5% O2) significantly attenuated TRAIL-induced cell death in the colorectal cancer cell lines HCT116 (Figure 1A), HCT-8 (Figure 1C) and DLD1 (Figure 1D) compared to normoxia (ambient air, ~21% O2) in MTT- (Figure 1A, 1C, 1D) and crystal violet-based viability assays (Figure 1B).