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TRIM Proteins in Host Defense and Viral Pathogenesis
Maria I Giraldo1, Adam Hage1, Sarah van Tol1
1Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX USA.
Current Clinical Microbiology Reports
|August 25, 2020
Summary
Viruses can evade host defenses by hijacking tripartite motif (TRIM) proteins, which are crucial for innate immunity. This interaction can paradoxically enhance viral replication and increase disease severity, highlighting a complex interplay in host-pathogen dynamics.
Area of Science:
- Molecular Biology
- Immunology
- Virology
Background:
- Tripartite motif (TRIM) proteins function as E3 ubiquitin ligases.
- TRIM proteins play significant roles in innate immunity, inflammation, and viral replication.
Purpose of the Study:
- To discuss the novel roles of TRIM proteins in virus infections.
- To explore how TRIM proteins contribute to increased pathogenicity during viral infections.
Main Methods:
- Review of existing literature on TRIM proteins and viral interactions.
- Analysis of ubiquitination pathways regulated by TRIM proteins.
- Examination of viral strategies for immune evasion involving TRIM proteins.
Main Results:
- TRIM proteins modulate antiviral and inflammatory signaling pathways, including type I interferon and NF-κB.
- Viruses have evolved mechanisms to target TRIM proteins for immune evasion.
- Emerging evidence suggests viruses can utilize TRIM proteins to enhance replication and pathogenesis, as exemplified by TRIM7's pro-viral role.
Conclusions:
- TRIM proteins are critical for host defense against viruses.
- Viruses can subvert TRIM proteins to increase pathogenesis.
- Further research into TRIM-virus interactions and in vivo studies are needed to develop therapeutic strategies.
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