作者应用ＥＬＩＳＡ法对４０例肺癌患者，１０例胸部良性疾病开胸手术患者进行手术前后血清ｓＩＬ一２Ｒ水平的动态检测，并以１５例健康人作对照。结果显示肺癌患者血清ｓＩＬ一２Ｒ水平不仅高于健康人，也高于胸部良性疾病患者。肺癌患者无论有无区域淋巴结转移，只要手术切除原发肿瘤，２周后血清ｓＩＬ一２Ｒ水平均明显下降；而肿瘤未能切除者则高于手术前水平。手术创伤可使血ｓＩＬ一２Ｒ水平增高，术后２周恢复到术前水平。 The authors used ELISA to detect the serum levels of sIL-2R in 40 patients with lung cancer and 10 patients with benign chest diseases before and after operation, and compared them with 15 healthy subjects. The results showed that the serum levels of sIL-2R in lung cancer patients were not only higher than those in healthy people, but also higher in patients with benign diseases. In patients with lung cancer with or without regional lymph node metastasis, serum sIL-2R levels decreased significantly after 2 weeks as long as the primary tumors were surgically resected; those with unresectable tumors were higher than those before surgery. Surgical wounds can increase blood sIL-2R levels and return to preoperative levels 2 weeks postoperatively.