Assay for rapid quantification of capped and tailed intact mRNA

Area of Science:

• Molecular Biology
• Biotechnology
• Vaccine Development

Background:

• Messenger RNA (mRNA) technology has advanced significantly, particularly for vaccines and therapeutics.
• Assessing mRNA quality (integrity, 5' capping, 3' polyadenylation) is crucial but challenging with existing methods.
• Current analytical techniques often involve lengthy procedures, complex preparation, and require specialized expertise.

Purpose of the Study:

• To introduce a novel, rapid, and straightforward assay for evaluating mRNA quality.
• To provide a single, unique measurement for intact mRNA, assessing both 5' cap and 3' poly(A) tail.
• To overcome the limitations of current mRNA analytical methods.

Main Methods:

• Development of the 5' CapQ assay, a benchtop-based method.
• The assay performs quantitative or relative analysis of mRNA quality.
• Analysis is completed within a 2-hour timeframe with minimal sample processing.

Main Results:

• The 5' CapQ assay provides accurate and precise measurements of intact mRNA.
• It simplifies the assessment of mRNA integrity, 5' capping, and 3' polyadenylation.
• The assay demonstrates high performance without extensive sample preparation.

Conclusions:

• The 5' CapQ assay represents a significant advancement in mRNA analytics.
• It effectively alleviates bottlenecks in optimizing in vitro transcription (IVT) and capping processes.
• The assay facilitates consistent assessment of batch-to-batch quality in mRNA bioprocessing.