Pathogen-associated gene expression profiles in rainbow trout macrophages

Pathogens can be distinctively recognized by the cells of the immune system through interactions between the Pathogen-Associated Molecular Patterns (PAMPs) that they produce and the innate immune receptors of leukocytes. The present paper reports on the PAMP-modulated expression of a group of genes...

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Bibliographic Details
Published in:Comparative biochemistry and physiology. Part D, Genomics & proteomics Genomics & proteomics, 2006-12, Vol.1 (4), p.416-422
Main Authors: Iliev, Dimitar B., Goetz, Giles W., MacKenzie, Simon, Planas, Josep V., Goetz, Frederick W.
Format: Article
Language:English
Subjects:
Escherichia coli
Gene expression
Lipopolysaccharide
Macrophage
Oncorhynchus mykiss
Pathogen-associated molecular patterns
Poly(I:C)
Rainbow trout
Zymosan
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Summary:Pathogens can be distinctively recognized by the cells of the immune system through interactions between the Pathogen-Associated Molecular Patterns (PAMPs) that they produce and the innate immune receptors of leukocytes. The present paper reports on the PAMP-modulated expression of a group of genes expressed in trout macrophages. The genes were identified in subtracted libraries from lipopolysaccharide (LPS)-stimulated macrophages and their expression was analyzed using quantitative real time PCR following stimulation of the cells with E. coli LPS, poly (I:C) and zymosan; representing Gram-negative bacteria, viruses and fungi, respectively. Genes (SPINT1L, DDIT4L, STEAP4, and TNFAIP3), the expression of which was induced by LPS and zymosan, were not significantly up-regulated by poly(I:C) and the opposite was found for transcripts (HMGB1 and PSMB9) up-regulated by poly(I:C). Overall, the differences in gene expression were greater at a later stage of macrophage activation (24 h) at a time when stimulation with poly(I:C) resulted in substantially different responses as compared to LPS and, to a lesser extent, zymosan.
ISSN:1744-117X
1878-0407
DOI:10.1016/j.cbd.2006.10.003