外周血IL-6对早期肝癌微波消融后复发的预测

目的 探讨血清中白细胞介素-6(IL-6)和IL-22对早期乙型病毒性肝炎相关肝细胞癌患者(HBV-HCC)微波消融(MWA)治疗后复发的预测作用.方法 收集49例经MWA治疗早期HBV-HCC患者术前外周血,应用ELISA检测外周血IL-6与IL-22的含量,同期30例健康人作对照.据x-tile软件计算cut-off值将IL-6和IL-22水平分为高水平组和低水平组,Kaplan-Meier分析两组的无瘤生存期,Log rank检验差异性,Cox回归筛选影响HBV-HCC复发的危险因素.结果 HCC组的IL-6与IL-22水平明显高于对照组(IL-6:13.20(11.87～15.79) pg/ml和10.47(9.50～13.82) pg/ml,P=0.001;IL-22:42.18(34.39～57.44) pg/ml和25.45(22.31～30.12) pg/ml,P＜0.001).Kaplan-Meier分析显示HCC患者术前低IL-6、高总胆红素和低白蛋白水平预示较短无瘤生存期,IL-22对HCC复发的影响差异无统计学意义.Cox回归多因素分析显示低IL-6(≤13.2 pg/ml,HR:3.721,95％CI:1.674～8.272,P=0.001)与低白蛋白水平(≤41.0 g/L,HR:2.085,95％CI:1.101～3.950,P=0.024)是影响肝癌复发的独立危险因素.结论术前IL-6和白蛋白水平可作为MWA治疗HBV-HCC患者预测复发的指标.

The application of peripheral serum interleukin-6 levels in predicting the recurrence of early hepatocellular carcinoma after receiving microwave ablation

Objective To investigate the clinical application of serum interleukin-6 (IL-6)and interleukin-22 (IL-22) levels in predicting the recurrence of hepatitis B virus (HBV)-related early hepatocellular carcinoma (HCC) after receiving microwave ablation (MWA).Methods Preoperative peripheral blood samples were collected in 49 patients with early-stage HBV-related HCC,and serum concentrations of IL-6 and IL-22 were measured by using ELISA.Thirty healthy volunteers were recruited and used as the control group.The xtile software was used to define the best cut-off value,and the IL-6 and IL-22 levels were divided into highlevel group and low-level group.The tumor-free survivals of high-level and low-level groups were analyzed with Kaplan-Meier analysis,log rank test was adopted to determine the difference,and Cox regression model was employed to screen the risk factors affecting HBV-related HCC recurrence.Results The serum IL-6 and IL-22 levels of HCC group were 13.20 pg/ml (11.87-15.79 pg/ml) and 42.18 pg/ml (34.39-57.44 pg/ml) respectively,which were significantly higher than 10.47 pg/ml (9.50-13.82 pg/ml) and 25.45 pg/ml (22.31-30.12 pg/ml) of the control group (P=0.001 and P＜0.001 respectively).Kaplan-Meier analysis revealed that preoperative lower IL-6,higher total bilirubin and lower albumin levels indicated a shorter disease-free survival (DFS),and IL-22 levels had no statistically significant effect on the recurrence of HCC.Cox regression multivariate analysis showed that lower serum IL-6 level (≤ 13.2 pg/ml;hazard ratio=3.721;95％ CI=1.674-8.272;P=0.001) and lower serum albumin level (≤41.0 g/L;hazard mtio=2.085;95％CI=1.101-3.950;P=0.024) were independent risk factors affecting HBV-related HCC recurrence Conclusion Preoperative serum IL-6 level and serum albumin level can be used as the predictors of HCC recurrence in patients with HBV-related early HCC who are receiving MWA treatment.(J Intervent Radiol,2017,26:232-236)