Characterization and gene expression analysis of the two main Th17 cytokines (IL-17A/F and IL-22) in turbot, Scophthalmus maximus

• Published in: Developmental & Comparative Immunology
• Main Authors: Costa, M. M., Pereiro, Patricia, Wang, T., Secombes, Christopher J., Figueras Huerta, Antonio, Novoa, Beatriz
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2012
• Subjects: IL-22; IL-17; Th-17 response; Mucosal-associated immunity; Scophthalmus maximus; Turbot
• Online Access: http://hdl.handle.net/10261/59774; https://doi.org/10.1016/j.dci.2012.09.002

12 páginas, 8 figuras, 3 tablas This report describes the cloning, characterization and gene expression pattern of two Th17 cytokines, interleukin (IL)-17A/F and -22, in turbot Scophthalmus maximus. The turbot IL-17A/F cDNA contains a 516 bp open reading frame encoding a deduced IL-17A/F protein of 171 amino acid (aa) residues, containing a predicted signal peptide of 31 aa. Turbot IL-22 had a 564 bp ORF coding for a 187 aa protein with a 33 aa signal peptide. The turbot IL-22 protein contained a typical IL-10 family signature. Both cytokines had highest expression levels in the intestine followed by head kidney and gills. Stimulation with the Gram negative bacterium Aeromonas salmonicida was able to modulate IL-17A/F and IL-22 expression in head kidney, spleen and liver but not the intestine. PMA and PHA were also able to induce the expression of both cytokines, suggesting that, as expected, T-cells are likely the main producers of these molecules in turbot as in mammals. This work was supported by the projects CSD2007-00002 ‘‘Aquagenomics’’ of the program Consolider-Ingenio 2010 and AGL2009- 10677 from the Spanish Ministerio de Ciencia e Innovación. Peer reviewed