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Pestiviruses infection: Interferon-virus mutual regulation
Tianqi Hong1,2,3,4, Yi Yang1,2,3,4, Pengzhi Wang1,2,3,4
1College of Veterinary Medicine, Yangzhou University, Yangzhou, China.
Frontiers in Cellular and Infection Microbiology
|March 20, 2023
Summary
Pestiviruses evade host antiviral defenses by blocking interferon production. This review details how viruses like BVDV and CSFV manipulate interferon pathways, impacting livestock health.
Area of Science:
- Virology
- Immunology
- Infectious Diseases
Background:
- Pestiviruses cause persistent infections, threatening livestock.
- Interferons (IFNs) are critical for antiviral defense.
- Understanding pestivirus-IFN interactions is vital for livestock health.
Purpose of the Study:
- To review pestivirus recognition and subsequent interferon induction.
- To examine pestivirus strategies for antagonizing interferon production.
- To elucidate the regulatory network between pestiviruses and IFNs.
Main Methods:
- Review of host pattern recognition receptors (RIG-I, MDA5, TLR3) in pestivirus detection.
- Analysis of pestivirus-encoded proteins (E^rns, N^pro) that antagonize IFNs.
- Synthesis of current knowledge on pestivirus-IFN signaling pathways.
Main Results:
- Pestiviruses are recognized by RIG-I, MDA5, and TLR3, initiating IFN synthesis.
- Pestiviruses employ viral proteins like E^rns and N^pro to suppress IFN production.
- Complex regulatory networks govern IFN induction and pestivirus antagonism.
Conclusions:
- Pestiviruses exhibit sophisticated mechanisms to evade innate immunity.
- Insights into pestivirus immune evasion provide a basis for control strategies.
- Further research on pestivirus-IFN interactions is crucial for understanding host-pathogen dynamics.
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