Fig. 4From: Downregulation of lncRNA CCAT1 enhances 5-fluorouracil sensitivity in human colon cancer cellsKnockdown of CCAT1 reverses drug resistance in 5-FU-resistant colon cancer cell lines. a, c. Apoptosis of HCT 116 or HT-29 cells transfected with pcDNA3.1-CCAT1 were assessed using flow cytometry. b, d. Apoptosis of HCT 116/5-FU or HT-29/5-FU cells transfected with siRNA-CCAT1 were assessed using flow cytometry. Error bars represent the mean ± SD. **P < 0.01 compared with the respective NC groupBack to article page