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mRNA vaccine quality analysis using RNA sequencing
Helen M Gunter1,2, Senel Idrisoglu1,2, Swati Singh1,2
1Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, QLD, Australia.
Nature Communications
|September 22, 2023
Summary
A new method using nanopore sequencing, VAX-seq, streamlines the analysis of messenger RNA (mRNA) vaccines and therapies. This approach enhances quality control for mRNA drugs, ensuring safety and effectiveness.
Area of Science:
- Molecular Biology
- Biotechnology
- Bioinformatics
Background:
- Manufacturing advances have enabled large-scale production of mRNA vaccines, but rigorous analysis is crucial for quality, safety, and efficacy.
- Current analytical methods for mRNA vaccines and therapies are often time-consuming and expensive, posing challenges for rapid development and quality control.
Purpose of the Study:
- To develop and present a streamlined, comprehensive method for analyzing mRNA vaccines and therapies.
- To demonstrate the capability of long-read nanopore sequencing for assessing critical quality attributes of mRNA products.
- To introduce supporting bioinformatics software for automated reporting of mRNA and plasmid template quality.
Main Methods:
- Utilized long-read nanopore sequencing for the comprehensive analysis of mRNA vaccines and therapies.
- Employed direct RNA sequencing to analyze mRNA chemistry, including nucleoside modifications.
- Developed automated software to report on mRNA and plasmid template quality and integrity.
Main Results:
- The VAX-seq method, based on nanopore sequencing, comprehensively measures key mRNA vaccine quality attributes: sequence, length, integrity, and purity.
- Direct RNA sequencing effectively analyzes mRNA chemistry and detects crucial nucleoside modifications.
- The supporting software automates the reporting process, enhancing efficiency in quality assessment.
Conclusions:
- Long-read nanopore sequencing offers a streamlined and comprehensive approach to analyzing mRNA vaccines and therapies.
- VAX-seq provides significant advantages over traditional methods for assessing mRNA quality attributes and chemistry.
- RNA sequencing methods like VAX-seq are poised to become central to the development and manufacturing of mRNA-based therapeutics.
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