Autoantibodies and inflammatory cytokines in children with systemic-onset juvenile idiopathic arthritis / 国际检验医学杂志

ABSTRACT

Objective To investigate the changes of autoantibodies and inflammatory cytokines in children with system‐onset ju‐venile idiopathic arthritis (So‐JIA) .Methods Serum concentrations of autoantibodies and inflammatory cytokines were measured in children with So‐JIA at active phase or remission phase by using indirect immunofluorescence method and enzyme‐linked immu‐nosorbent assay .Healthy children were enrolled as control group .Results The assay positivity of antikeratin antibody (AKA) and anti‐cyclic citrullinated peptide antibody (anti‐CCP) was 29 .4% and 47 .1% in active phase group ,and was 17 .2% and 27 .6% in remission group .The differences between the two groups were significant (P0 .05) .Conclusion AKA and anti‐CCP might be with high diagnostic specificity to So‐JIA ,but the sensitivity could be low ,and combined detection could increase the diagnostic positivity .Inflammatory cytokines ,such as IL‐6 and IL‐17 ,might be associated with the activity of So‐JIA ,which could be important biomarkers of So‐JIA .