Dan Li1, Wei Wang2. 1. Lab of Gene and Cell Therapy, Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China. 2. Lab of Gene and Cell Therapy, Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China. weiwang@scu.edu.cn.