Funding for this research was provided by:
JSPS KAKENHI (16K20045 and 18K16652)
Received: 29 July 2019
Accepted: 24 December 2019
First Online: 8 January 2020
Ethics approval and consent to participate
: Mice were housed and maintained at the Division of Animal Research of Shinshu University. Based on the national regulations and guidelines, all experimental procedures were reviewed by the Committee for Animal Experiments and finally approved by the president of Shinshu University (Approval Number 280112). The applications of all cell lines for academic research are permitted.
: Not applicable.
: The authors declare that they have no competing interests.