Corresponding Author

Zhinan Chen

The College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, P. R. China

Cell Engineering Research Center and Department of Cell Biology, State Key Laboratory of Cancer, Fourth Military Medical University, Xi'an, P. R. China

Correspondence to: J Zhang, College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, P. R. China. E-mail: zhangjh@bjtu.edu.cn or Z Chen, College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, P. R. China.

E-mail: znchen@fmmu.edu.cn