Intercellular Transport of Viral Proteins
Florian Simon1, Andrea K Thoma-Kress2
1Institute of Clinical and Molecular Virology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.
Results and Problems in Cell Differentiation
|September 6, 2024
Summary
Viruses can transfer proteins between cells, even without forming new viral particles. This intercellular protein exchange helps viruses infect cells and suppress immune responses, impacting host immunity.
Area of Science:
- Virology
- Cell Biology
- Immunology
Background:
- Viruses utilize cell-to-cell transmission for genetic and protein exchange.
- Some viruses transmit via cell-free infection or cell-cell contact.
- Viruses can also exchange proteins independently of viral particle formation.
Purpose of the Study:
- To review the mechanisms of intercellular viral protein transfer.
- To explore how viral proteins modulate host cell susceptibility and immunity.
- To cover human pathogenic viruses across all Baltimore classes.
Main Methods:
- Literature review focusing on viral protein intercellular transport.
- Analysis of known cell-cell communication routes exploited by viruses.
- Compilation of data on viral protein exchange mechanisms.
Main Results:
- Viral proteins are exchanged between cells via extracellular vesicles and tunneling nanotubes.
- Intercellular viral protein transfer can precede infection, aiding immune evasion.
- Viral proteins can target bystander immune cells to dampen antiviral defenses.
Conclusions:
- Intercellular viral protein exchange is a significant viral strategy.
- Understanding these mechanisms is crucial for antiviral therapies.
- This process impacts viral pathogenesis and host-organism interactions.
Keywords:
Cell-cell communicationExtracellular vesiclesIntercellular transportMobile viral proteinTunneling nanotubesViral protein transferMore Related Videos
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