可溶性CD30联合血清肝细胞生长因子检测诊断移植肾急性排斥

目的 探讨肾移植术前可溶性CD30(sCD30)联合术后第5天血清肝细胞生长因子(HGF)检测诊断肾移植术后急性排斥反应(AR).方法 采用酶联免疫吸附法对65例肾移植患者术前sCD30水平及术后第5天的HGF水平进行检测.依据术前sCD30水平将患者分为sCD30阳性受者及sCD30阴性受者.通过分析特征工作曲线(ROC)评价第5天的HGF水平诊断移植肾AR的意义,进一步分析sCD30联合HGF诊断AR的价值.结果 65例患者术后26例发生AR为排斥反应组,39例顺利恢复,为无排斥反应组.以sCD30值120U/ml为界限值,排斥反应组sCD30阳性率为61.5%,无排斥反应组阳性率为17.9%,有显著差异(P＜0.05).排斥反应组和无排斥反应组肾移植术后第5天的HGF水平差别有统计学意义(P＜0.05),ROC证明HGF界限值90μg/L可较好的诊断移植肾急性排斥反应,敏感度84.6%,特异度76.9%.联合术前sCD30的结果.可提高AR的诊断效果.结论 sCD30联合HGF检测分析可有效诊断肾移植AR.

Combined assay of soluble CD30 and hepatocyte growth factor for diagnosis of acute renal allograft rejection

OBJECTIVE: To study the value of detection of both preoperative soluble CD30 (sCD30) and hepatocyte growth factor (HGF) level 5 days after transplantation in the diagnosis of acute rejection of renal allograft. METHODS: Preoperative serum sCD30 levels and HGF level 5 days after transplantation were determined in 65 renal-transplant recipients using enzyme-linked immunosorbent assay. The recipients were divided according to the sCD30 levels positivity. Receiver operating characteristic (ROC) curves were used to assess the value of HGF level on day 5 posttransplantation for diagnosis of acute renal allograft rejection, and the value of combined assay of the sCD30 and HGF levels was also estimated. RESULTS: After transplantation, 26 recipients developed graft rejection and 39 had uneventful recovery without rejection. With the cut-off value of sCD30 of 120 U/ml, the positivity rate of sCD30 was significantly higher in recipients with graft rejection than in those without (61.5% vs 17.9%, P<0.05). Recipients with acute rejection showed also significantly higher HGF levels on day 5 posttransplantation than those without rejection (P<0.05). ROC curve analysis indicated that HGF levels on day 5 posttransplantation was a good marker for diagnosis of acute renal allograft rejection, and at the cut-off value of 90 ug/L, the diagnostic sensitivity was 84.6% and specificity 76.9%. Evaluation of both the sCD30 and HGF levels significantly enhanced the diagnostic accuracy of acute graft rejection. CONCLUSION: Combined assay of serum sCD30 and HGF levels offers a useful means for diagnosis of acute renal allograft rejection.