Single-center comparative analysis of panel reactive antibodies of 280 cases detected by two methods / 中国组织工程研究

ABSTRACT

BACKGROUND:Liquid chip techniques (Luminex) is a recently rising method for detecting anti-panel reactive antibody, which is characterized by high sensitivity, and strong specificity, less interference and high flux. OBJECTIVE:To compare the sensitivity and detection difference of panel reactive antibody in serum of kidney disease patients detected by enzyme-linked immunosorbent assay and Luminex. METHODS:Serum samples of 280 patients with kidney disease were selected. The enzyme-linked immunosorbent assay and Luminex methods were used to measure positive rate of panel reactive antibody. Chi-square test for fourfold table data was utilized for statistical analysis. RESULTS AND CONCLUSION:The positive rates of panel reactive antibody were respectively 18.9%and 33.6%as detected by enzyme-linked immunosorbent assay and Luminex method. The positive rates of anti-HLA-I antibody and anti-HLA-II antibody were respectively 12.8%and 12.5%, as detected by enzyme-linked immunosorbent assay. The positive rates of anti-HLA-I antibody and anti-HLA-II antibody were respectively 25.0%and 20.7%, as detected by Luminex method. Positive detection rate was significantly higher in the Luminex group than that in the enzyme-linked immunosorbent assay group. Moreover, Luminex method could precisely detect the low-concentration antibody. Chi-square test for fourfold table data showed P<0.01. Significant differences in the differences of panel reactive antibody of kidney disease patients were detected between the two methods. Results demonstrated that compared with enzyme-linked immunosorbent assay, Luminex method is more sensitive and accurate, and more suitable for clinical detection.