Funding for this research was provided by:
Japan Agency for Medical Research and Development (JP17pc0101001)
Received: 29 April 2020
Accepted: 27 December 2020
First Online: 19 January 2021
Ethics approval and consent to participate
: This study was approved by Internal Review Board for Safe and Secure Use of Living Modified Organisms of The Institute of Medical Science, The University of Tokyo (approval #K18–02).
: Not Applicable.
: K.K. and S.M. are employed by Asahi Kogyosha Co., Ltd.; S.T. and N.T. are employed by Astellas Inc. The remaining authors declare no competing interests.