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Associations between serum IL-8 and knee symptoms, joint structures, and cartilage or bone biomarkers in patients with knee osteoarthritis

Citation

Ruan, G and Xu, J and Wang, K and Zheng, S and Wu, J and Bian, F and Chang, B and Zhang, Yan and Meng, T and Zhu, Z and Han, W and Ding, C, Associations between serum IL-8 and knee symptoms, joint structures, and cartilage or bone biomarkers in patients with knee osteoarthritis, Clinical Rheumatology, 38 pp. 3609-3617. ISSN 0770-3198 (2019) [Refereed Article]

Copyright Statement

Copyright International League of Associations for Rheumatology (ILAR) 2019

DOI: doi:10.1007/s10067-019-04718-8

Abstract

Objective: The aim of this study was to investigate cross-sectional associations between serum levels of IL-8 and the above outcomes in patients with knee osteoarthritis (OA).

Methods: A total of 160 subjects with clinical knee OA were included. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score and Lequesne index were used to assess the joint symptom. Magnetic resonance imaging was used to measure knee structural abnormalities including infrapatellar fat pad (IPFP) signal intensity alternation. Knee radiographic OA was assessed by radiography using the Kellgren-Lawrence (K-L) grading system. Enzyme-linked immunosorbent assay was used to measure the serum levels of IL-8 and cartilage or bone biomarkers.

Results: In multivariable analyses, serum IL-8 was positively associated with WOMAC weight-bearing pain (β 2.85, P = 0.028), WOMAC physical dysfunction (β 12.71, P = 0.048), and Lequesne index (β 1.65, P = 0.015), and had positive associations with IPFP signal intensity alteration (OR 3.18, P = 0.011) and serum levels of N-telopeptide of type I collagen (NTXI), N-terminal procollagen III propeptide (PIIINP), matrix metalloproteinase (MMP)3, and MMP13 (β 0.24-1.44, all P < 0.05) in patients with clinical knee OA. Furthermore, there were positive associations between IL-8 and WOMAC score (β 22.49, P = 0.037), K-L grades (OR 3.88, P = 0.013), and IPFP signal intensity alteration (OR 3.20, P = 0.033) in patients with radiographic OA.

Conclusions: Serum levels of IL-8 were positively associated with increased knee symptoms, IPFP signal intensity alteration, and serum levels of bone and/or cartilage biomarkers, suggesting that IL-8 may have a role to play in knee OA. Key Point This study systemically investigates the associations between serum IL 8 and knee symptoms, joint structures, and cartilage or bone biomarkers in patients with knee osteoarthritis, and some significant associations have been found, suggesting that IL 8 may have a role to play in knee OA.

Item Details

Item Type:Refereed Article
Keywords:IL-8, magnetic resonance imaging, osteoarthritis
Research Division:Biomedical and Clinical Sciences
Research Group:Clinical sciences
Research Field:Rheumatology and arthritis
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Ruan, G (Mr Guangfeng Ruan)
UTAS Author:Zheng, S (Miss Shuang Zheng)
UTAS Author:Zhang, Yan (Miss Yan Zhang)
UTAS Author:Meng, T (Mr Tao Meng)
UTAS Author:Zhu, Z (Mr Zhaohua Zhu)
UTAS Author:Han, W (Dr Weiyu Han)
UTAS Author:Ding, C (Professor Chang-Hai Ding)
ID Code:134307
Year Published:2019
Web of Science® Times Cited:1
Deposited By:Menzies Institute for Medical Research
Deposited On:2019-08-07
Last Modified:2021-05-31
Downloads:0

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