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Updated: Mar 17, 2026
10:00
High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes
Published on: March 24, 2015
13.9K
Fish interferon-stimulated genes: The antiviral effectors
Sarah J Poynter1, Stephanie J DeWitte-Orr2
1Department of Biology, 200 University Ave W, Waterloo, ON N2L 3G1, Canada.
Developmental and Comparative Immunology
|July 25, 2016
Summary
Type I interferons (IFN) are crucial for antiviral defense. This review highlights that while fish possess interferon-stimulated genes (ISGs) to fight viruses, their specific antiviral mechanisms remain largely unknown, necessitating further research.
Area of Science:
- Immunology
- Virology
- Aquatic Biology
Background:
- Type I interferons (IFN) are key cytokines in innate antiviral immunity.
- Interferon-stimulated genes (ISGs) are induced by IFN signaling and inhibit viral replication.
- While ISGs are well-studied in mammals, fish ISG functions and mechanisms are poorly understood.
Purpose of the Study:
- To review known interferon-stimulated genes (ISGs) common to mammals and fish.
- To highlight ISGs unique to fish.
- To emphasize the knowledge gap in fish ISG antiviral mechanisms.
Main Methods:
- Literature review of ISGs in mammals and fish.
- Comparative analysis of conserved and unique ISGs.
- Identification of research gaps in fish antiviral immunity.
Main Results:
- Seven ISGs are conserved between mammals and fish.
- Three ISGs appear to be unique to fish.
- The antiviral effector functions of fish ISGs are largely uncharacterized.
Conclusions:
- Fish possess a repertoire of ISGs, including some unique to their species.
- Significant research is needed to elucidate the antiviral mechanisms of fish ISGs.
- Understanding fish ISG functions is critical for advancing aquatic innate immunity research.
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