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The Interplay Between Therapeutic Self-Amplifying RNA and the Innate Immune System: Balancing Efficiency and
Dmitry Kunyk1, Marina Plotnikova2, Mikhail Bespalov1
1Translational Medicine Research Center, Sirius University of Science and Technology, 354340 Sochi, Russia.
International Journal of Molecular Sciences
|September 27, 2025
Summary
Self-amplifying RNA (saRNA) offers potent therapeutic potential but requires safety assessments due to its interaction with the innate immune system. This review explores saRNA
Area of Science:
- Biotechnology
- Immunology
- Molecular Biology
Background:
- Self-amplifying RNA (saRNA) is a novel platform for developing vaccines, anti-tumor agents, and gene therapies.
- saRNA enables prolonged protein expression from small therapeutic doses.
- Biosafety concerns arise from auxiliary sequences encoding alphavirus proteins essential for saRNA replication.
Purpose of the Study:
- To review the interaction of saRNA with the innate immune system.
- To analyze side effects of saRNA therapeutics from preclinical and clinical trials.
- To discuss mechanisms of saRNA function, reactogenicity, and optimization strategies.
Main Methods:
- Analysis of preclinical and clinical trial data for saRNA therapeutics.
- Discussion of mechanisms underlying saRNA function and reactogenicity.
- Review of optimization approaches to mitigate innate immune response and cytopathic effects.
Main Results:
- Candidate saRNA therapeutics have shown specific side effects in trials.
- Mechanisms of saRNA function are linked to alphavirus genomes and innate immune activation.
- Optimization strategies aim to reduce immune activation and cytopathic effects.
Conclusions:
- saRNA technology presents significant therapeutic advantages but necessitates careful biosafety evaluation.
- Understanding saRNA's interaction with the innate immune system is crucial for safety.
- Optimizing saRNA design can lead to safer and more effective therapeutic applications.
Keywords:
RLRVEEVclinical developmentimmunityoptimizationreactogenicityrepliconsaRNAself-amplifying RNAtherapeuticsvaccineMore Related Videos
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