The proportion of apoptotic tumor cells (lower right quadrant+upper right quadrant) was decreased by BDNF (DLD1; 26.0%→21.9%, SW480; 18.6%→11.9%, LoVo; 25.6%→15.6%), suggesting an anti-apoptotic effect by BDNF. The gene discussed is BDNF; the disease is neoplasm.