P-21 CD24, an immunosuppressive immune checkpoint, is up-regulated in EGFR-mutated non-small lung cancer cell lines upon EGFR-TKI treatment.

Takuro Noguchi
（Department of Medical Oncology, Hokkaido University Graduate School of Medicine）

P-26 Identification of Amomum xanthioides as a natural medicine to enhance anti-tumor effecter function of natural killer cells

Yoshimasa Yamamoto
（Laboratory of Cancer Biology and Immunology, Section of Host Defences, Division of Bioscience, Department of Research and Development, Institute of Natural Medicine, University of Toyama）

P-27 Analysis of cancer stem cell-specific cancer antigens in bladder cancer cell lines

Shuhei Yamada
（Department of Pathology, Sapporo Medical University）

P-28 Angiogenic inhibitor administration prior to immunotherapy improves the therapeutic effects

Mineyoshi Sato
（Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University）

P-29 Identification of HLA class II-presenting neoantigens in colon cancer by proteogenomics HLA ligandome analysis

Satoru Matsumoto
（Department of Pathology, Sapporo Medical University School of Medicine）

P-30 A novel HLA class I peptide encoded by a long non-coding RNA, PVT1

Yasuhiro Kikuchi
（Department of Pathology, Sapporo Medical University School of Medicine, Japan）