1. Department of Experimental Immunology, Institute of Development, Aging and Cancer, Tohoku University, Seiryo-machi, Sendai, Japan
2. Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Seiryo-machi, Sendai, Japan
3. Department of Cell Proliferation, United Center for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan