Serum soluble CD26/DPP4 titer variation is a potential prognostic biomarker in cancer therapy with a humanized anti-CD26 antibody oleh Yutaro Kaneko, Ryo Hatano, Naoto Hirota, Nicolas Isambert, Véronique Trillet-Lenoir, Benoit You, Jérôme Alexandre, Gérard Zalcman, Fanny Valleix, Thomas Podoll, Yoshimi Umezawa, Seiichi Takao, Satoshi Iwata, Osamu Hosono, Tetsuo Taguchi, Taketo Yamada, Nam H. Dang, Kei Ohnuma, Eric Angevin, Chikao Morimoto