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The correlation between increased serum concentrations of interleukin-6 family cytokines and disease activity in rheumatoid arthritis patients

Authors
 Soo-Jin Chung  ;  Yong-Jin Kwon  ;  Min-Chan Park  ;  Yong-Beom Park  ;  Soo-Kon Lee 
Citation
 YONSEI MEDICAL JOURNAL, Vol.52(1) : 113-120, 2011 
Journal Title
YONSEI MEDICAL JOURNAL
ISSN
 0513-5796 
Issue Date
2011
Keywords
Rheumatoid arthritis ; interleukin-6 family cytokines ; interleukin-6 ; interleukin-11 ; leukemia inhibitory factor
Abstract
PURPOSE: This study was performed to determine whether the serum concentrations of interleukin (IL)-6 family cytokines are elevated in patients with rheumatoid arthritis (RA) and to investigate the relationship between IL-6 family cytokine levels and disease activity in RA patients.

MATERIALS AND METHODS: We obtained serum samples from 40 patients with RA and 40 age- and sex- matched healthy controls, and we assessed the clinical parameters of disease activity, including the 28-joint disease activity score (DAS28) and C-reactive protein (CRP) levels. Serum samples from five patients with high disease activity (DAS28 > 5.1) were also collected at the eighth week of treatment. Serum concentrations of IL-6, IL-11, and leukemia inhibitory factor (LIF) were measured using an enzyme-linked immunosorbent assay (ELISA).

RESULTS: Serum concentrations of IL-6 family cytokines, including IL-6, IL-11, and LIF, were significantly elevated in patients with RA compared to those of healthy controls. Although there was no significant relationship between IL-6 family cytokine levels and DAS28, the IL-6 levels of patients with RA showed a significant correlation with CRP levels. After eight weeks of medical treatment in patients with high disease activity, a decrease in DAS28 was associated with a significant decrease in the serum concentrations of IL-6 and IL-11.

CONCLUSION: The serum concentrations of IL-6 family cytokines were significantly elevated in patients with RA, and they decreased with medical treatment. These findings suggest a possible role for IL-6 family cytokines in the pathogenesis of RA.
Files in This Item:
T201100132.pdf Download
DOI
10.3349/ymj.2011.52.1.113
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Park, Min Chan(박민찬) ORCID logo https://orcid.org/0000-0003-1189-7637
Park, Yong Beom(박용범)
Lee, Soo Kon(이수곤)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/92552
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