Fig. 1From: Positive regulation of ataxia-telangiectasia-mutated protein (ATM) by E2F transcription Factor 1 (E2F-1) in cisplatin-resistant nasopharyngeal carcinoma cellsComparison of E2F-1 and ATM expression between DDP-resistant NPC cells and parental cells. Note: A, B MTT assay tested and verified DDP-resistant NPC cells to DDP, including CNE2/DDP cells (A) and HNE1/DDP cells (B); C, D qRT–PCR determined the relative mRNA expression of E2F-1 and ATM in DDP-resistant NPC cells and these parental cells; E–G western blotting determined the protein expression of E2F-1 and ATM in DDP-resistant NPC cells and these parental cells. All experiments were performed in triplicate. Data were expressed as the mean ± SD. Student’s t-test was adopted for pairwise comparisonBack to article page