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Aminoacyl-tRNA Synthetase: A Non-Negligible Molecule in RNA Viral Infection
1Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China.
Viruses
|March 26, 2022
Summary
Aminoacyl-tRNA synthetases (aaRSs) play critical roles in viral infections beyond protein synthesis. Understanding these interactions is key to developing new therapies for infectious diseases like COVID-19.
Area of Science:
- Molecular Biology
- Virology
- Immunology
Background:
- Infectious diseases, including COVID-19, pose significant global health challenges.
- Host-virus interactions are crucial for understanding disease pathogenesis and developing interventions.
- Aminoacyl-transfer RNA (tRNA) synthetases (aaRSs), traditionally known for protein synthesis, are increasingly recognized for their roles in viral infections.
Purpose of the Study:
- To review the latest research on the interactions between aaRSs and RNA viruses.
- To highlight the non-canonical functions of aaRSs during viral infections.
- To explore the therapeutic potential of targeting aaRSs for treating viral diseases.
Main Methods:
- Literature review of studies investigating aaRS-virus interactions.
- Analysis of the roles of aaRSs in viral entry, replication, and host immune response.
- Examination of the nonenzymatic and extracellular functions of aaRSs.
Main Results:
- aaRSs are involved in various stages of viral infection, including facilitating viral entry and replication.
- Components of the multi-synthetase complex (MSC) can be released during infection to exert nonenzymatic activities.
- Secreted aaRSs and aaRS-interacting multi-functional proteins (AIMPs) can act as cytokines or cell surface communicators.
Conclusions:
- aaRSs exhibit diverse roles in viral pathogenesis, influencing host innate immunity and viral invasion.
- Targeting aaRSs presents a promising therapeutic strategy for combating viral infectious diseases.
- Further research into aaRS-virus interactions is essential for advancing antiviral therapies and vaccine development.
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