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Viral interference with MHC class I antigen presentation pathway: the battle continues
Aruna P N Ambagala1, Joyce C Solheim, Subramaniam Srikumaran
1Department of Veterinary and Biomedical Sciences, University of Nebraska-Lincoln, NE 68583-0905, USA.
Veterinary Immunology and Immunopathology
|June 28, 2005
Summary
Viruses evade host immunity by interfering with major histocompatibility complex (MHC) class I antigen presentation. This review details viral strategies to evade CD8+ cytotoxic T lymphocyte (CTL) responses, focusing on veterinary viruses.
Area of Science:
- Immunology
- Virology
- Molecular Biology
Background:
- CD8+ cytotoxic T lymphocytes (CTLs) are crucial for identifying virus-infected cells.
- CTLs recognize viral peptides presented by major histocompatibility complex (MHC) class I molecules on cell surfaces.
- The MHC class I antigen presentation pathway samples intracellular components to display potential threats.
Purpose of the Study:
- To review the diverse mechanisms viruses employ to evade the MHC class I antigen presentation pathway.
- To highlight viral evasion strategies with a specific focus on viruses of veterinary importance.
Main Methods:
- Literature review of viral evasion mechanisms.
- Analysis of the interplay between viral strategies and the MHC class I antigen presentation pathway.
- Focus on viruses impacting animal health.
Main Results:
- Viruses have evolved sophisticated strategies to disrupt MHC class I antigen presentation.
- These evasion tactics aim to prevent CTL recognition and elimination of infected cells.
- Veterinary viruses utilize specific mechanisms to subvert host immune surveillance.
Conclusions:
- Understanding viral evasion of MHC class I presentation is vital for controlling viral diseases.
- Targeting these evasion mechanisms could lead to novel therapeutic strategies.
- Further research into veterinary viral evasion is needed to protect animal populations.