Abstract |
To compare the performance of different commercial anti-dsDNA autoantibody assays, including multiplex-based immunoassay (Bio-Plex), Farr radioimmunoassay (Farr), ELISA, chemiluminescent immunoassay (CLIA), and Crithidia Luciliae indirect immunofluorescence test (CLIFT) in Chinese patients with systemic lupus erythematosus (SLE). SLE patients (n = 119) as well as healthy controls (n = 200) and disease controls (n = 100) were recruited, and serum anti-dsDNA autoantibodies were detected by Bio-Plex, Farr, two ELISA assays (Medical & Biological Laboratories-ELISA, EUROIMMU-ELISA), CLIA, and a standard CLIFT. The correlation of anti-dsDNA autoantibody levels to SLE disease activity was calculated, and the specificity and sensitivity of these methods were measured by receiver-operator characteristic (ROC) curve analysis. In ROC curve analysis, Bio-Plex showed the largest area under the curve (AUC) over other assays. Cutoff adjustment according to ROC enhanced the performance of all quantitative assays. Overall, Bio-Plex and CLIFT have higher specificity (>90.00%). ELISA and CLIA results are correlated with disease activity, and Bio-Plex results have the strongest correlation with SLEDAI score and active renal involvement. Bio-Plex assay has better overall performance in anti-dsDNA detection over Farr, ELISA, and CLIA methods in Chinese SLE patients.
|
Authors | Jiangfeng Zhao, Kaiwen Wang, Xiaodong Wang, Ting Li, Li Guo, Liyang Gu, Zhiwei Chen, Fangfang Sun, Haiting Wang, Jiajie Li, Jiaxian Huang, Peng Zhang, Yang Tang, Shuang Ye |
Journal | Clinical rheumatology
(Clin Rheumatol)
Vol. 37
Issue 1
Pg. 139-144
(Jan 2018)
ISSN: 1434-9949 [Electronic] Germany |
PMID | 28741087
(Publication Type: Journal Article)
|
Chemical References |
|
Topics |
- Autoantibodies
(analysis)
- China
- DNA
(immunology)
- Female
- Humans
- Lupus Erythematosus, Systemic
(diagnosis, immunology)
- Male
- Sensitivity and Specificity
- Severity of Illness Index
|