[1] Osaka Univ, Grad Sch Dent, Dept Biochem, Osaka, Japan
[2] Kyushu Univ, Fac Dent, Sec Oral Mol Biol, Fukuoka 812, Japan
[3] Kanazawa Univ, Canc Res Inst, Kanazawa, Ishikawa 920, Japan
[4] Univ Pittsburgh, Pittsburgh Canc Inst, Div Hematol Oncol, Pittsburgh, PA USA
[5] Univ Tokyo, Dept Orthoped Surg, Tokyo, Japan
[6] Univ Tokyo, Inst Med Sci, Tokyo, Japan