肿瘤的发生、发展与机体的免疫功能密切相关。T细胞亚群是免疫系统重要的免疫活性细胞,在抗肿瘤过程中发挥重要作用。作者应用BDfascaliber流式细胞仪检测56例胸部肿瘤患者放疗前后T细胞亚群及48例对照者T细胞亚群变化情况,以探讨放疗对T细胞亚群变化的影响。1资料与方法1·1一 Tumor occurrence and development are closely related to the body’s immune function. T cell subsets are important immunocompetent cells in the immune system and play an important role in antitumor. The authors used BDfascaliber flow cytometry detection of T cell subsets in T cell subsets of 56 patients with chest tumor before and after radiotherapy and 48 controls to investigate the effect of radiotherapy on T cell subsets. 1 Materials and Methods 1.1