Type 1 interferon suppresses expression and glucocorticoid induction of glucocorticoid-induced leucine zipper (GILZ).

Autor:	Dankers W; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., Northcott M; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., Bennett T; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., D'Cruz A; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., Sherlock R; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., Gearing LJ; Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Melbourne, VIC, Australia., Hertzog P; Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Melbourne, VIC, Australia., Russ B; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., Miceli I; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., Scheer S; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., Fujishiro M; Institutes for Environmental and Gender Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, Japan., Hayakawa K; Institutes for Environmental and Gender Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, Japan., Ikeda K; Institutes for Environmental and Gender Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, Japan.; Department of Internal Medicine and Rheumatology, Juntendo University Urayasu Hospital, Chiba, Japan., Morand EF; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia., Jones SA; Centre for Inflammatory Diseases, Monash University, Melbourne, VIC, Australia.
Jazyk:	angličtina
Zdroj:	Frontiers in immunology [Front Immunol] 2022 Nov 23; Vol. 13, pp. 1034880. Date of Electronic Publication: 2022 Nov 23 (Print Publication: 2022).
DOI:	10.3389/fimmu.2022.1034880
Abstrakt:	SLE is a systemic multi-organ autoimmune condition associated with reduced life expectancy and quality of life. Glucocorticoids (GC) are heavily relied on for SLE treatment but are associated with detrimental metabolic effects. Type 1 interferons (IFN) are central to SLE pathogenesis and may confer GC insensitivity. Glucocorticoid-induced leucine zipper (GILZ) mediates many effects of GC relevant to SLE pathogenesis, but the effect of IFN on GC regulation of GILZ is unknown. We performed in vitro experiments using human PBMC to examine the effect of IFN on GILZ expression. JAK inhibitors tofacitinib and tosylate salt were used in vivo and in vitro respectively to investigate JAK-STAT pathway dependence of our observations. ChiP was performed to examine glucocorticoid receptor (GR) binding at the GILZ locus. Several public data sets were mined for correlating clinical data. High IFN was associated with suppressed GILZ and reduced GILZ relevant to GC exposure in a large SLE population. IFN directly reduced GILZ expression and suppressed the induction of GILZ by GC in vitro in human leukocytes. IFN actions on GILZ expression were dependent on the JAK1/Tyk2 pathway, as evidenced by loss of the inhibitory effect of IFN on GILZ in the presence of JAK inhibitors. Activation of this pathway led to reduced GR binding in key regulatory regions of the GILZ locus. IFN directly suppresses GILZ expression and GILZ upregulation by GC, indicating a potential mechanism for IFN-induced GC resistance. This work has important implications for the ongoing development of targeted GC-sparing therapeutics in SLE. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2022 Dankers, Northcott, Bennett, D’Cruz, Sherlock, Gearing, Hertzog, Russ, Miceli, Scheer, Fujishiro, Hayakawa, Ikeda, Morand and Jones.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu