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Abstract Number: 2803

Comparison of Clinical and Serological Differences According to the Autoantibody Cluster in Women with Systemic Lupus Erythematosus: Results from the Korean Lupus Network (KORNET) Registry

Ji-Eun Kim1, Dong-Jin Park2, Ji-Hyoun Kang2, Yi-Rang Yim1, Jeong-Won Lee1, Kyung-Eun Lee2, Lihui Wen1, Tae-Jong Kim3, Yong-Wook Park2 and Shin-Seok Lee3, 1Chonnam National University Medical School and Hospital, Gwangju, South Korea, 2Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, South Korea, 3Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea, The Republic of

Meeting: 2016 ACR/ARHP Annual Meeting

Date of first publication: September 28, 2016

Keywords: Lupus and autoantibodies

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Session Information

Date: Tuesday, November 15, 2016

Title: Systemic Lupus Erythematosus – Clinical Aspects and Treatment - Poster III: Biomarkers and Nephritis

Session Type: ACR Poster Session C

Session Time: 9:00AM-11:00AM

Background/Purpose:  Individual autoantibodies are associated with the clinical features in patients with systemic lupus erythematosus (SLE). However, few studies have investigated differences in disease presentation based on autoantibody profiles in Asian patients with SLE. This study evaluated autoantibody clusters and compared the clinical and serological presentation and clinical outcome in Korean SLE patients.

Methods:  The Korean Lupus Network (KORNET) is a nationwide multicenter, hospital-based registry, set up to prospectively assess outcomes in Korean SLE patients. Of the 505 SLE patients enrolled in the KORNET registry from July 2014 to November 2015, the study group comprised 339 consecutive female SLE patients. Seven autoantibodies (anti-dsDNA, anti-Sm, anti-RNP, anti-Ro, anti-La, lupus anticoagulant (LAC), and anti-cardiolipin antibody [aCL]) were selected for cluster analysis using the K-means cluster analysis procedure.

Results:  Three distinct autoantibody clusters were identified: cluster 1, anti-dsDNA and anti-Ro; cluster 2, anti-RNP; and cluster 3, anti-RNP, anti-Ro, and anti-La. Compared with patients in clusters 2 (n = 99) and 3 (n = 85), patients in cluster 1 (n = 155) had a shorter symptom duration before SLE diagnosis and higher incidence of biopsy-proven lupus nephritis. Patients in cluster 3 had a higher incidence of discoid rash, central nervous system involvement, lupus pancreatitis, pulmonary arterial hypertension, Raynaud’s phenomenon, and premature gonadal failure. In addition, patients in cluster 3 had the lowest proportion of mean prednisolone > 7.5 mg/day in the medication history.

Conclusion:  Autoantibody clusters were associated with the clinical features in women with SLE. Clustering autoantibodies could be a valuable approach for differentiating between various clinical subsets of SLE, and may help to guide prediction of the subsequent clinical course and organ damage in these patients.


Disclosure: J. E. Kim, None; D. J. Park, None; J. H. Kang, None; Y. R. Yim, None; J. W. Lee, None; K. E. Lee, None; L. Wen, None; T. J. Kim, None; Y. W. Park, None; S. S. Lee, None.

To cite this abstract in AMA style:

Kim JE, Park DJ, Kang JH, Yim YR, Lee JW, Lee KE, Wen L, Kim TJ, Park YW, Lee SS. Comparison of Clinical and Serological Differences According to the Autoantibody Cluster in Women with Systemic Lupus Erythematosus: Results from the Korean Lupus Network (KORNET) Registry [abstract]. Arthritis Rheumatol. 2016; 68 (suppl 10). https://acrabstracts.org/abstract/comparison-of-clinical-and-serological-differences-according-to-the-autoantibody-cluster-in-women-with-systemic-lupus-erythematosus-results-from-the-korean-lupus-network-kornet-registry/. Accessed .
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