Fig. 1.
TIC10 is a small molecule that induces TRAIL independent of p53. (A) Chemical structure of TIC10. (B) Quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis of TRAIL mRNA concentrations in HCT116 p53−/− cells (48 hours, n = 4). (C) Surface TRAIL induced by TIC10 in a panel of cancer cells (10 μM, 72 hours, n = 3). (D) Surface TRAIL in HCT116 p53−/− cells after TIC10 treatment at the indicated conditions and time points after treatment (n = 3). (E) HCT116 p53−/− TRAIL surface levels measured by flow cytometry at 72 hours after TIC10 treatment initiation (5 μM, n = 3). Cells were treated with TIC10 or dimethyl sulfoxide (DMSO) control for the indicated time of preincubation and then changed to a drug-free medium for the remaining period until analysis at 72 hours. Error bars indicate SD of replicates. *P < 0.05 between the indicated condition and controls.