Funding for this research was provided by:
Ministry of Education, Culture, Sports, Science and Technology
Ministry of Health, Labour and Welfare
Japan Health Science Foundation
Japan Agency for Medical Research and Development
Pharmaceuticals and Medical Devices Agency
National Center for Child Health and Development
Received: 24 May 2019
Revised: 4 August 2019
Accepted: 12 August 2019
First Online: 27 August 2019
Ethics approval and consent to participate
: Human cells in this study were performed in full compliance with the Ethical Guidelines for Clinical Studies (Ministry of Health, Labor, and Welfare, Japan). The cells were banked after approval of the Institutional Review Board at the National Institute of Biomedical Innovation (May 9, 2006). Animal experiments were performed according to protocols approved by the Institutional Animal Care and Use Committee of the National Research Institute for Child Health and Development.
: Not applicable.
: AU is a shareholder of “2one2, ltd”. The other authors declare that they have no competing interests.