Fig. 5. β-Catenin siRNA mildly enhances triptolide-induced inhibition of NCI-H1299 and NCI-H460 cells.
a, b β-Catenin siRNA transfection decreased β-catenin expression, as measured by Western blotting and RT-qPCR assays. c, d The effect of triptolide combined with β-catenin siRNA on the migration and invasion of NCI-H1299 and NCI-H460 cells as indicated by Transwell migration and invasion assays. The images were taken at ×100 magnification. e, f The effect of triptolide combined with β-catenin siRNA on EMT as indicated by Western blotting and RT-qPCR assays. TPL triptolide. The data are presented as the mean ± SEM, n = 3. ***P < 0.001 vs. the siNC group, ###P< 0.001 vs. the β-catenin vector group.