Interleukin-18 as a mediator of systemic juvenile idiopathic arthritis

Jelušić, Marija and Lukić, Ivan Krešimir and Tambić-Bukovac, Lana and Dubravčić, Klara and Malčić, Ivan and Rudan, Igor and Batinić, Drago (2007) Interleukin-18 as a mediator of systemic juvenile idiopathic arthritis. Clinical Rheumatology, 26 (8). pp. 1332-1334. ISSN 0770-3198 (Print) 1434-9949 (Electronic)

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The objective of this report is to explore the balance between serum and synovial fluid levels of interleukin (IL)-18 in children with juvenile idiopathic arthritis (JIA). Blood samples were obtained from 81 children with JIA and 18 control children. Synovial fluid samples were collected from 16 children with oligoarticular JIA. Concentrations of IL-18 were determined using commercial kit. Patients with systemic JIA had higher serum levels of IL-18 than patients with other forms of JIA or control children, both during the active (median, range: 6,240, 1,600–78,750 pg/ml) and inactive (1,615, 513–3,270 pg/ml) phase of disease [analysis of variance (ANOVA), P < 0.05). Levels of IL-18 in sera of children with oligoarticular JIA (255, 89–4,342 pg/ml) were similar to the respective synovial fluid levels (217, 89–1,245 pg/ml). Serum levels of IL-18 were proportional to the erythrocyte sedimentation rate and levels of C-reactive protein, but inversely proportional to the haemoglobin levels. IL-18 appears to be an important mediator of systemic JIA, while it seems of a lesser relevance in pathogenesis of other JIA forms. Therefore, inhibition of IL-18 might be a base for a successful biological therapy for systemic JIA.

Item Type: Article
MeSH: Arthritis, Juvenile Rheumatoid - blood - immunology ; Interleukin-18 - blood ; Synovial Fluid - chemistry - immunology ; Adolescent ; Adult ; Biological Markers ; Blood Sedimentation ; C-Reactive Protein - analysis ; Child ; Child, Preschool ; Female ; Hemoglobins - analysis ; Humans ; Infant ; Male
Departments: Katedra za pedijatriju
Katedra za anatomiju i kliničku anatomiju
Katedra za medicinsku statistiku, epidemiologiju i medicinsku informatiku
Depositing User: Lea Škorić
Status: Published
Jelušić, MarijaUNSPECIFIED
Lukić, Ivan KrešimirUNSPECIFIED
Tambić-Bukovac, LanaUNSPECIFIED
Dubravčić, KlaraUNSPECIFIED
Date: August 2007
Date Deposited: 11 Dec 2007
Last Modified: 23 Sep 2011 16:10
Subjects: /
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