1 Institute of Laboratory Animals, Kyoto University Graduate School of Medicine, Yoshidakonoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan. honda.arata.7a@kyoto-u.ac.jp.
2 RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan. honda.arata.7a@kyoto-u.ac.jp.
3 Institute of Laboratory Animals, Kyoto University Graduate School of Medicine, Yoshidakonoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
4 Division of Stem Cell Therapy, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan.