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Updated: Sep 9, 2025
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Optimization of In vitro Transcription Reaction for mRNA Production Using Chromatographic At-Line Monitoring
Published on: April 4, 2025
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Optimization of In Vitro Transcription Reaction for mRNA Production Using Chromatographic At-Line Monitoring
Tjaša Marušič1,2, Tina Vodopivec Seravalli3, Anže Martinčič Celjar3
1Cobik, Ajdovščina, Slovenia.
Methods in Molecular Biology (Clifton, N.J.)
|August 28, 2025
Summary
This study introduces a rapid chromatographic method for analyzing mRNA synthesis. It enables at-line monitoring of mRNA production and nucleoside triphosphate depletion for optimized therapeutic manufacturing.
Area of Science:
- Biotechnology
- Molecular Biology
- Biochemistry
Background:
- In vitro transcription (IVT) is essential for producing mRNA therapeutics.
- Optimizing IVT requires balancing reaction components for yield and purity.
- Current methods may lack the speed for real-time process monitoring.
Purpose of the Study:
- To develop a rapid analytical method for monitoring mRNA synthesis.
- To enable at-line analysis of in vitro transcription reactions.
- To facilitate optimization of mRNA production processes.
Main Methods:
- Utilized a chromatographic analytical method for separation.
- Separated nucleoside triphosphates (NTPs), DNA template (pDNA), and mRNA.
- Achieved a 4-minute read-out for at-line analysis.
Main Results:
- Demonstrated successful separation of key reaction components.
- Enabled monitoring of NTP depletion and mRNA formation.
- Provided insights into reaction kinetics and yield.
Conclusions:
- The developed method allows for efficient at-line monitoring of IVT.
- This analytical approach supports reaction optimization and scale-up.
- Facilitates improved control over mRNA therapeutic production.
