1. Department of Pharmacology; Nihon University School of Dentistry; 1-8-13 Kanda-Surugadai; Chiyoda-ku; Tokyo; 101-8310; Japan
2. Cellular Function Imaging Laboratory; RIKEN Center for Molecular Imaging Science; 6-7-3 Minatojima-minamimachi; Chuo-ku; Kobe; Hyogo 650-0047; Japan