肝硬变与肝癌患者IL-2/IL-2R系统检测的意义

目的检测肝癌与肝硬变患者 IL-2/IL-2R 系统,比较其免疫功能并探讨其临床意义.方法对50例肝硬变、50例肝癌患者及30例正常对照进行检测,mIL-2R 表达采用免疫荧光法检测,IL-2活性及 sIL-2R 含量采用酶联免疫吸附法检测.结果肝癌患者 IL-2活性及 mIL-2R 表达低于肝硬变(P<0.01)及对照组(P<0.01),肝硬变患者 IL-2活性及 mIL-2R 表达亦较正常对照低(P<0.05);肝癌患者 sIL-2R 含量高于肝硬变(P<0.05)及对照组(P<0.01),肝硬变患者slL-2R含量亦高于正常对照(P<0.05).结论肝硬变与肝癌患者具有相似的免疫功能紊乱,且肝癌患者更为显著,免疫功能紊乱是肝硬变恶变的主要原因之一.

Determination of IL-2/IL-2R system in patients with liver cirrhosis.and carcinoma

AIMS To.determine the interleuking-2 and interleukin- 2 receptor (IL-2/IL-2R) system in patients with liver cirrhosis and carcinoma and compare their immune functions. The clinical significance is also discussed. METHODS Fifty patients with Liver cirrhosis (LC), 50 patients with hepatocellular carcinoma (HCC) and 30 normal controls were studied. The expression of mlL-2R was examined by immunofluorescence. IL-2's activity and serum level of soluble interleukin-2 recep- tor (sIL-2R) were measured by enzyme linked im- munosorbent assay. RESULTS IL-2's activity and the percentage of mIL- 2R expression in carcinoma were significantly lower than those in cirrhosis (P<0.01) and controls (P< 0.01),while the IL-2's activity and the expression of mlL-2R in cirrhosis were also lower than normal controls (P<0.05). The serum level of sIL-2R in carcinoma was significantly higher than that in cirrhosis (P<0.05) and controls (P<0.01),and the level in cirrhosis was higher than in controls (P<0.05). CONCLUSIONS Patients with liver cirhosis and car- cinoma share the decreased immune function of similar nature,but the latter has a more profound degree. Such resemblance in immune disturbances may be the important factor affecting the carcinogenesis of cirrhotic liver.