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Article: Elevated Interleukin-18 Receptor Accessory Protein Mediates Enhancement in Reactive Oxygen Species Production in Neutrophils of Systemic Lupus Erythematosus Patients

TitleElevated Interleukin-18 Receptor Accessory Protein Mediates Enhancement in Reactive Oxygen Species Production in Neutrophils of Systemic Lupus Erythematosus Patients
Authors
KeywordsSLE
interleukin-18 receptor accessory protein
type I interferon
cellular function
Issue Date2021
PublisherMDPI AG. The Journal's web site is located at http://www.mdpi.com/journal/cells
Citation
Cells, 2021, v. 10 n. 5, p. article no. 964 How to Cite?
AbstractInterleukin-18 receptor accessory protein (IL18RAP) is an indispensable subunit for the IL-18 receptor (IL-18R) complex’s ability to mediate high-affinity IL-18 binding and signalling transduction. Interest in IL-18 in systemic lupus erythematosus (SLE) has been mostly focused on its role as a type 1 T helper cell-driving cytokine. The functional significance of IL18RAP in mediating the IL-18-driven response in myeloid cells in SLE remains largely unexplored. This study aimed to investigate the expression and function significance of IL18RAP in neutrophils of SLE patients. By qRT-PCR and Western blot analyses, elevated expressions of IL18RAP mRNA and protein were observed in neutrophils from SLE patients—particularly those with a history of nephritis. IL18RAP expression correlated negatively with complement 3 level and positively with disease activity, with higher expression in patients exhibiting renal and immunological manifestations. The increased IL18RAP expression in SLE neutrophils could be attributed to elevated type I interferon level in sera. Functionally, neutrophils from SLE patients showed higher IL-18-mediated enhancement in reactive oxygen species (ROS) generation, which showed positive correlation with IL18RAP expression and could be neutralized by anti-IL18RAP blocking antibodies. Taken together, our findings suggest that IL-18 could contribute to SLE pathogenesis through mediation of neutrophil dysfunction via the upregulation of IL18RAP expression.
Persistent Identifierhttp://hdl.handle.net/10722/305845
ISSN
2023 Impact Factor: 5.1
2023 SCImago Journal Rankings: 1.547
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMA, J-
dc.contributor.authorLam, IKY-
dc.contributor.authorLau, CS-
dc.contributor.authorChan, VSF-
dc.date.accessioned2021-10-20T10:15:09Z-
dc.date.available2021-10-20T10:15:09Z-
dc.date.issued2021-
dc.identifier.citationCells, 2021, v. 10 n. 5, p. article no. 964-
dc.identifier.issn2073-4409-
dc.identifier.urihttp://hdl.handle.net/10722/305845-
dc.description.abstractInterleukin-18 receptor accessory protein (IL18RAP) is an indispensable subunit for the IL-18 receptor (IL-18R) complex’s ability to mediate high-affinity IL-18 binding and signalling transduction. Interest in IL-18 in systemic lupus erythematosus (SLE) has been mostly focused on its role as a type 1 T helper cell-driving cytokine. The functional significance of IL18RAP in mediating the IL-18-driven response in myeloid cells in SLE remains largely unexplored. This study aimed to investigate the expression and function significance of IL18RAP in neutrophils of SLE patients. By qRT-PCR and Western blot analyses, elevated expressions of IL18RAP mRNA and protein were observed in neutrophils from SLE patients—particularly those with a history of nephritis. IL18RAP expression correlated negatively with complement 3 level and positively with disease activity, with higher expression in patients exhibiting renal and immunological manifestations. The increased IL18RAP expression in SLE neutrophils could be attributed to elevated type I interferon level in sera. Functionally, neutrophils from SLE patients showed higher IL-18-mediated enhancement in reactive oxygen species (ROS) generation, which showed positive correlation with IL18RAP expression and could be neutralized by anti-IL18RAP blocking antibodies. Taken together, our findings suggest that IL-18 could contribute to SLE pathogenesis through mediation of neutrophil dysfunction via the upregulation of IL18RAP expression.-
dc.languageeng-
dc.publisherMDPI AG. The Journal's web site is located at http://www.mdpi.com/journal/cells-
dc.relation.ispartofCells-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectSLE-
dc.subjectinterleukin-18 receptor accessory protein-
dc.subjecttype I interferon-
dc.subjectcellular function-
dc.titleElevated Interleukin-18 Receptor Accessory Protein Mediates Enhancement in Reactive Oxygen Species Production in Neutrophils of Systemic Lupus Erythematosus Patients-
dc.typeArticle-
dc.identifier.emailLau, CS: cslau@hku.hk-
dc.identifier.emailChan, VSF: sfvchan@hku.hk-
dc.identifier.authorityLau, CS=rp01348-
dc.identifier.authorityChan, VSF=rp01459-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3390/cells10050964-
dc.identifier.pmid33919154-
dc.identifier.pmcidPMC8143138-
dc.identifier.scopuseid_2-s2.0-85105212589-
dc.identifier.hkuros326920-
dc.identifier.volume10-
dc.identifier.issue5-
dc.identifier.spagearticle no. 964-
dc.identifier.epagearticle no. 964-
dc.identifier.isiWOS:000654640800001-
dc.publisher.placeSwitzerland-

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