Mucin expression in pancreatic ductal adenocarcinoma cell lines in 2D and 3D cultures: A proteomic and immunocytochemical analysis - Yuuki Shichi; Hiroki Tsumoto; Masakazu Fujiwara; Keisuke Nonaka; Yasuko Hasegawa; Seiichi Shinji; Hirofumi Rokutan; Kimimasa Takahashi; Tomio Arai; Yuri Miura; Toshiyuki Ishiwata (PLoS ONE, 2026)