1. The Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
2. Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
3. Department of Physics, King’s College London, London, WC2R 2LS, UK
4. Cell Biology Group, National Measurement Lab, LGC, Fordham, Cambridgeshire, CB7 5WW, UK
5. Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China