Funding for this research was provided by:
National Natural Science Foundation of China (No. 81800936)
Natural Science Foundation of Jiangsu Province (BK20190648, No. BK20180668)
the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD, No. 2018−87)
Jiangsu Provincial Commission of Health and Family Planning, Nanjing, China (No. BJ18035)
Southeast University-Nanjing Medical University Cooperative Research Project (No. 2242018K3DN17)
China Postdoctoral Science Foundation Funded Project (No. 2019T120445, No. 2018M64050)
Jiangsu Postdoctoral Science Foundation Funded Project (No. 2018K251C)
Jiangsu Province Undergraduate Innovation and Entrepreneurship Training Program (No. 201910312004Z)
Open Research Fund of Jiangsu Key Laboratory of Oral Diseases (No. JSKLOD-KF-1903)
Received: 13 July 2020
Accepted: 14 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: All human stem cells involved in the present study followed the International Society for Stem Cell Research “Guidelines for the Conduct of Human Embryonic Stem Cell Research.” The study was approved by the ethics and research committee of Nanjing Medical University (Permit Number: 2018-190). Informed consent was obtained from all the participants.
: Not applicable.
: The authors declare no conflicts of interest.