Expression of interleukin-17A in serum of children with intravenous immunoglobulin-resistant Kawasaki disease and its clinical significance
LI Shi-Yu, DING Yan
Department of Pediatric Immunology, Wuhan Children's Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China
Abstract：Objective To study the expression of interleukin-17A (IL-17A) in the serum of children with intravenous immunoglobulin (IVIG)-resistant Kawasaki disease (KD) and its clinical significance. Methods A total of 143 children with KD who were hospitalized in Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, from June 2021 to June 2022 were enrolled in this prospective study, among whom 115 had IVIG-sensitive KD and 28 had IVIG-resistant KD. After matching for sex and age, 110 children with acute respiratory infectious diseases (fever time ≥5 days but without KD) were enrolled as the control group. The enzyme-linked immunosorbent assay was used to measure the serum level of IL-17A. The levels of white blood cell count (WBC), neutrophil count (NE), platelet count, erythrocyte sedimentation rate, and C-reactive protein (CRP) were measured. The receiver operating characteristic curve was plotted to analyze the value of WBC, NE, CRP, and IL-17A in the prediction of IVIG-resistant KD. The multivariate logistic regression analysis was used to evaluate the predictive factors for resistance to IVIG in children with KD. Results Before IVIG treatment, the KD group had a significantly higher serum level of IL-17A than the control group (P<0.05), and the children with IVIG-resistant KD had a significantly higher serum level of IL-17A than those with IVIG-sensitive KD (P<0.05). The receiver operating characteristic curve analysis showed that WBC, NE, CRP, and IL-17A had an area under the curve of 0.718, 0.741, 0.627, and 0.840, respectively, in the prediction of IVIG-resistant KD. With serum IL-17A ≥44.06 pg/mL as the cut-off value, IL-17A had a sensitivity of 84% and a specificity of 81% in the prediction of IVIG-resistant KD. The multivariate logistic regression analysis showed that a high serum level of IL-17A was a predictive factor for resistance to IVIG in children with KD (OR=1.161, P=0.001). Conclusions Serum IL-17A levels are elevated in children with IVIG-resistant KD, and serum IL-17A level (≥44.06 pg/mL) may have a predictive value for resistance to IVIG in children with KD.
LI Shi-Yu,DING Yan. Expression of interleukin-17A in serum of children with intravenous immunoglobulin-resistant Kawasaki disease and its clinical significance[J]. CJCP, 2023, 25(3): 244-249.
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