摘要:Objective To study the relationship between HLA and PRA in renal retransplant patients. Methods PRA levels were retested in 30 patients who received renal retransplant. PRA was detected by enzyme linked immunosorbent assay(ELISA) via LATM and LAT1240(OneLambda)Results Patients were divided into 3 groups according to the transplant time. 3 patients were with allograft survive more than 8 years. Among them, there were 1 patient with 2 HLA antigens mismatch, 2 patients with 4 HLA antigens mismatch. 10 patients were with allograft survive more than 5 years. Among them, there were 6 patients with 4 HLA antigens mismatch, 3 patients with 2 HLA antigens mismatch, and 1 patient with 3 HLA antigens mismatch and PRA posi tive. 17 patients were with allograft survive more than 3 years. Among them, there were 1 patient with 1 HLA antigen mismatch, 1 patient with 2 HLA antigens mismatch and PRA positive, 3 patients with 3 HLA antigens mismatch, 1 patient of them with PRA positive, 7 patients with 4 HLA antigens mismatch, 1 patient of them HLA-Ⅱ antibody positive both in pretransplant or post transplants patients PRA negative and 2 patients with PRA positive, 5 patients with 5 HLA antigen mismatch, 4 patients of them with PRA negative. Conclusion HLA match is an important factor which can ensure long term renal survival,while HLA antibody%目的 研究再次肾移植患者人类白细胞抗原(HLA)与群体反应性抗体(PRA)的关系.方法 选择行再次肾移植手术的患者30例检测PRA.PRA检测采用ELISA法筛选HLA-Ⅰ类、Ⅱ类混合抗原板和鉴定板.结果 根据肾移植手术时间分为3组:移植肾存活8年以上组患者3例,HLA错配2个抗原者1例,错配4个抗原者2例,无PRA生成;移植肾存活5年以上组患者10例,HLA错配4个抗原者6例和错配2个抗原者3例,肾功能正常,PRA阴性,错配3个抗原者1例,PRA阳性;移植肾存活3年以上组患者17例,HLA错配1个抗原和2个抗原者各1例,PRA阳性,HLA错配3个抗原者3例,其中1例PRA阳性,HLA错配4个抗原者7例,1例术前和术后均有抗Ⅱ类抗体,4例PRA阴性,2例PRA阳性,HLA错配5个抗原者5例,4例PRA阴性,1例PRA阳性.结论 HLA配型是维系移植肾长期存活的重要因素,而HLA抗体对移植肾长期存活和移植肾功能的影响具有重要作用.