Abstract

Systemic juvenile idiopathic arthritis (sJIA) and cryopyrin-associated periodic syndrome (CAPS) share many common manifestations. We aim to identify an applicable method to assist disease discrimination. Inflammatory cytokines were measured in the plasma of patients with CAPS, sJIA with persistent disease course and healthy controls. Supernatants collected from non-stimulated peripheral blood mononuclear cells (PBMCs) and those undergone inflammasome stimulation tests utilizing lipopolysaccharide (LPS) with and without adenosine triphosphate (ATP) were investigated. Inflammatory cytokines in patient plasma fail to differentiate sJIA from CAPS. PBMCs from sJIA secrets higher amount of IL-1β and IL-18 while CAPS PBMCs produces more caspase-1 without stimulation. IL-1β, IL-18, and caspase-1 were significantly elevated among CAPS PBMCs (all p < 0.05) upon LPS stimulation, but not when additional ATPs were provided. Levels of cytokines and PBMC responses to the stimulation assays were similar among all sJIA patients regardless of their history of macrophage activation syndrome. Unstimulated PBMC activities and the LPS inflammasome stimulation assay without exogenic ATPs can assist the differentiation of CAPS from sJIA with persistent disease course.

Details

Title
Lipopolysaccharide stimulation test on cultured PBMCs assists the discrimination of cryopyrin-associated periodic syndrome from systemic juvenile idiopathic arthritis
Author
Chao-Yi, Wu 1 ; Wen-Lang, Fan 2 ; Ying-Ming, Chiu 3 ; Huang-Yu, Yang 4 ; Wen-I, Lee 1 ; Jing-Long, Huang 5 

 Chang Gung Memorial Hospital, Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Taoyuan, Taiwan, ROC (GRID:grid.413801.f) (ISNI:0000 0001 0711 0593); Chang Gung University, College of Medicine, Taoyuan, Taiwan, ROC (GRID:grid.145695.a) 
 Chang Gung Memorial Hospital, Genomic Medicine Core Laboratory, Taoyuan, Taiwan, ROC (GRID:grid.413801.f) (ISNI:0000 0001 0711 0593) 
 Tungs’ Taichung Metroharbor Hospital, Department of Allergy, Immunology and Rheumatology, Taichung, Taiwan, ROC (GRID:grid.417350.4) (ISNI:0000 0004 1794 6820) 
 Chang Gung University, College of Medicine, Taoyuan, Taiwan, ROC (GRID:grid.145695.a); Chang Gung Memorial Hospital, Department of Nephrology, Taoyuan, Taiwan, ROC (GRID:grid.413801.f) (ISNI:0000 0001 0711 0593) 
 Chang Gung Memorial Hospital, Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Taoyuan, Taiwan, ROC (GRID:grid.413801.f) (ISNI:0000 0001 0711 0593); Chang Gung University, College of Medicine, Taoyuan, Taiwan, ROC (GRID:grid.145695.a); New Taipei Municipal TuCheng Hospital, Department of Pediatrics, New Taipei city, Taiwan, ROC (GRID:grid.145695.a) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2537860920
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.