E2F7 and cancer: Additionally, experiments were performed with cancer cell lines to investigate the functions of the candidate gene.<h4>Results</h4>Expression of E2F7 mRNA was the most influential prognostic factor of postoperative overall survival outcomes in the primary tissue-available cases in the JASPAC01 cohort (hazard ratio [HR], 1.386; 95% confidence interval [CI], 1.005-1.912; p = 0.045).