Figure 3. Resveratrol causes apoptotic death in HNSCC cells independent of Smad4.
Percentage Annexin-V/PI stained apoptotic A) FaDu, B) Cal27-pcDNA3, and C) Cal27-Smad4 cells following resveratrol treatment for 48 h at indicated concentrations and flow cytometry analysis as detailed in Methods. Each bar represents the mean ± SE of the percentage of apoptotic cells from triplicate samples from each treatment, and these results were reproducible in three independent experiments. Res, resveratrol