摘要：【中文】本发明涉及抗PD‑1抗体在治疗肿瘤中的用途。本发明还涉及用于检测外周血中CD8+T细胞和/或NK细胞的状态的试剂或用于检测EMSY基因的试剂在预测肿瘤病人对抗PD‑1抗体和/或其抗原结合片段治疗的效果的检测试剂盒中的用途。 【EN】The present invention relates to the use of anti-PD-1 antibodies in the treatment of tumors. The invention also relates to the use of a reagent for detecting the status of CD8+ T cells and/or NK cells in peripheral blood or a reagent for detecting the EMSY gene in a test kit for predicting the effect of a treatment of a tumor patient against an anti-PD-1 antibody and/or an antigen-binding fragment thereof.