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Serum Mannose-Binding Lectin Levels Are Correlated with the Disease Activity of Antineutrophil Cytoplasmic Antibody-Associated Vasculitis: A Single-Center Study

 Taejun Yoon  ;  Sung Soo Ahn  ;  Juyoung Yoo  ;  Byung-Woo Yoo  ;  Hyeok Chan Kwon  ;  Seung Min Jung  ;  Jason Jungsik Song  ;  Yong-Beom Park  ;  Sang-Won Lee 
 TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE, Vol.251(2) : 117-123, 2020-07 
Journal Title
Issue Date
Birmingham Vasculitis Activity Score ; antineutrophil cytoplasmic antibody ; disease activity ; mannose-binding lectin ; vasculitis
Mannose-binding lectin (MBL) is a soluble pattern-recognition molecule, which plays a crucial role in the innate immune system and the activation of lectin complement pathway. Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is an autoimmune disease affecting the small vasculatures and is characterized by the alteration of innate and adaptive immunity and complement activation. In this study, we investigated whether serum MBL is associated with disease activity of AAV, which was measured by ELISA. Associations between serum MBL and AAV-specific indices, as well as clinical and laboratory data were assessed using Kendall's tau. Among the 80 patients, 42 (52.5%), 21 (26.3), and 17 (21.3%) patients were classified as microscopic polyangiitis (MPA), granulomatosis with polyangiitis (GPA), and eosinophilic granulomatosis with polyangiitis (EGPA), respectively. The median values of erythrocyte sedimentation rate, C-reactive protein, and serum MBL were 36.5 (normal range < 20) mm/h, 2.4 (normal range < 8) mg/dL, and 8.6 ng/mL, respectively. The median serum levels of MBL in MPA, GPA, and EGPA patients were 8.4, 9.3, and 8.2 ng/mL. Correlation analysis showed that serum MBL was associated with Birmingham Vasculitis Activity Score (BVAS) (R = 0.169, p = 0.027), but not with other AAV-specific indices and clinical and laboratory data. In addition, serum MBL was significantly associated with the pulmonary manifestation score based on BVAS (R = 0.247, p = 0.001). In summary, among the AAV-specific indices and clinical and laboratory variables analyzed, serum MBL is correlated with BVAS and pulmonary manifestation score based on the BVAS.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Park, Yong Beom(박용범)
Song, Jason Jungsik(송정식) ORCID logo https://orcid.org/0000-0003-0662-7704
Ahn, Sung Soo(안성수) ORCID logo https://orcid.org/0000-0002-9002-9880
Yoo, Byung Woo(유병우)
Yoo, Juyoung(유주영) ORCID logo https://orcid.org/0000-0001-8882-1695
Lee, Sang-Won(이상원) ORCID logo https://orcid.org/0000-0002-8038-3341
Jung, Seung Min (정승민) ORCID logo https://orcid.org/0000-0003-3465-2181
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