1. Department of Biomolecular Chemistry, Kyoto Prefectural University, Kyoto 606-8522, Kyoto, Japan
2. Department of Anatomy and Cell Biology, Osaka Medical and Pharmaceutical University, Takatsuki 569-8686, Osaka, Japan
3. Department of Bioscience and Biotechnology, Fukui Prefectural University, Fukui 910-1195, Fukui, Japan
4. Department of Biotechnology, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Shiga, Japan
5. Department of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Hiroshima, Japan
6. Department of Pediatric Dentistry, Osaka University Graduate School of Dentistry, Suita 565-0871, Osaka, Japan