Funding for this research was provided by:
National Natural Science Foundation of China (81571824)
Received: 6 January 2020
Revised: 22 February 2020
Accepted: 28 February 2020
First Online: 20 March 2020
Ethics approval and consent to participate
: Human tissues and animal experiments were involved in this study, and all the procedures were reviewed and approved by the Biomedical Ethics Committee of Peking University in China (permit number for the human part: IRB00001052-19093; permit number for the animal part: LA2019133).
: Not applicable.
: The authors declare that they have no competing interests.