1. State Key Laboratory
of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610064, China
2. Division of Biosciences,
Faculty of Life Sciences, University College London, London WC1E 6BT, United Kingdom
3. The Hormel
Institute, University of Minnesota, Austin, Minnesota 55912, United States