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Updated: Jul 3, 2026

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes
Published on: March 24, 2015
Differential expression of two interferon-gamma genes in common carp (Cyprinus carpio L.)
Ellen H Stolte1, Huub F J Savelkoul, Geert Wiegertjes
1Cell Biology and Immunology Group, Wageningen University, Marijkeweg 40, 6709 PG Wageningen, The Netherlands.
Abstract:
Two interferon gamma (IFN-gamma) genes are expressed in immune cells of teleost fish and are potentially implicated in B- and T-lymphocyte responses. IFN-gamma-2 shows structural and functional characteristics to other vertebrate IFN-gamma genes and is associated with T-lymphocyte function. Expression profiling shows IFN-gamma-2 upregulation in T-lymphocytes after phytohemagglutinin (PHA) stimulation in vitro. Unexpectedly, we found IFN-gamma-1, which is structurally different from IFN-gamma-2, to be expressed in lipopolysacharide (LPS)-stimulated IgM+ (B- lymphocyte enriched) fractions. Expression of T-box transcription factor T-bet, but not of GATA-binding protein 3 (GATA3), correlated with expression of both IFN-gamma genes. In-vivo parasite infection, but as predicted not zymosan-induced inflammation, resulted in concomitant upregulation of T-bet and IFN-gamma-2. This corroborates a genuine T-lymphocyte associated role for IFN-gamma-2.
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