Interleukin-18-binding protein is a protein that in humans is encoded by the IL18BPgene.[1][2]
The protein encoded by this gene is an inhibitor of the proinflammatory cytokineIL18. This protein binds to IL18, prevents the binding of IL18 to its receptor, and thus inhibits IL18-induced IFN-gamma production. This protein is constitutively expressed and secreted in mononuclear cells. The expression of this protein can be enhanced by IFN-gamma. An elevated level of this protein is detected in the intestinal tissues of patients with Crohn's disease. Three transcript variants encoding the same protein have been found for this gene.[2]
References
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Corbaz A, ten Hove T, Herren S, et al. (2002). "IL-18-binding protein expression by endothelial cells and macrophages is up-regulated during active Crohn's disease". J. Immunol. 168 (7): 3608–16. doi:10.4049/jimmunol.168.7.3608. PMID11907126.
Plitz T, Saint-Mézard P, Satho M, et al. (2003). "IL-18 binding protein protects against contact hypersensitivity". J. Immunol. 171 (3): 1164–71. doi:10.4049/jimmunol.171.3.1164. PMID12874202.
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Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.
Kawashima M, Novick D, Rubinstein M, Miossec P (2004). "Regulation of interleukin-18 binding protein production by blood and synovial cells from patients with rheumatoid arthritis". Arthritis Rheum. 50 (6): 1800–5. doi:10.1002/art.20320. PMID15188356.