肾移植受者术前测定抗HLA-IgG抗体的临床意义

Clinical role of anti-HLA-IgG antibodies levels in recipients' serum before renal transplantation

目的 研究肾移植受者术前抗HLA IgG抗体水平的临床意义。 方法 采用酶联免疫吸附法 (ELISA)检测 184例肾移植受者术前抗HLA IgG抗体水平。分析抗HLA IgGI类抗体、Ⅱ类抗体阳性与急性排斥反应发生的关系。结果 肾移植受者术前抗HLA IgG抗体阴性者 15 5例 ,其中18例发生排斥反应 ,发生率 11.6 % ;抗HLA IgGⅠ类抗体阳性者 7例 ,2例发生排斥反应 ,发生率2 8.5 7% ;抗HLA IgGⅡ类抗体阳性者 9例 ,4例发生排斥反应 ,发生率4 4 .4 4 % ;Ⅰ类抗体、Ⅱ类抗体均阳性者 13例 ,8例发生排斥反应 ,发生率 6 1.5 3% ,与阴性对照组比较 ,差异有显著性 (P <0 .0 0 1)。结论 肾移植受者术前抗HLA IgG抗体阳性与术后排斥反应发生率密切相关 ,提示术前检测抗HLA IgG抗体具有重要的临床意义 ,可以预测排斥反应及指导治疗。

Objective To study the role of anti-HLA-IgG antibodies levels in serum before renal transplantation.Methods Anti-HLA-IgG antibodies levels were detected by means of ELISA-LATM in 184 patients before renal transplantation from Jan. 1999 to Dec 2002. Acute rejection occurrence was compared between anti-HLA-IgG class-Ⅰantibody positive group and anti-HLA-IgG class-Ⅱantibody positive group, and between both class-Ⅰand class-Ⅱantibody positive groups and anti-HLA-IgG antibody negative group, respectively. Results In the 155, 7, 9 and 13 cases respectively negative for Anti-HLA-IgG antibodies, positive for anti-HLA-IgG class-Ⅰantibodies, anti-HLA-IgG class-Ⅱantibodies and both class-Ⅰand class-Ⅱantibodies, there were 18, 2, 4, 8 cases of acute rejection with the occurrence rate being 11.6?% , 28.57?% , 44.44?% , 61.53?% , respectively ( P < 0.001 ). There was a close relationship between anti-HLA-IgG antibodies positive serum in the patients before renal transplantation and acute rejection occurrence in recipients after renal transplantation. Conclusion There was a close relationship between anti-HLA-IgG antibodies diluted levels in serum and acute rejection occurrence, indicating the important role of the detection of anti-HLA-IgG antibodies before transplantation in evaluating the outcome of renal transplantation.