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Detection of RNA-binding Proteins by In Vitro RNA Pull-down in Adipocyte Culture
Published on: July 22, 2016
Using an RNA binding protein to detect mRNA on lipid nanoparticles
Meagan McMahon1, Hareth Al-Wassiti2, Kirsten Vandenberg3
1CSL Seqirus Ltd, Parkville, Australia. Meagan.mcmahon@seqirus.com.
Scientific Reports
|May 21, 2026
Summary
Researchers developed a new assay to measure how well lipid nanoparticles (LNPs) encapsulate nucleic acids, crucial for effective gene therapy and vaccine delivery.
Area of Science:
- Biotechnology
- Nanomedicine
- Molecular Biology
Background:
- Lipid nanoparticles (LNPs) are key delivery vehicles for nucleic acids in vaccines and gene therapy.
- Efficient delivery depends on complete encapsulation of nucleic acids within the LNP.
- Quantifying surface-exposed vs. encapsulated nucleic acids is vital for LNP optimization.
Purpose of the Study:
- To develop and validate an encapsulation assay for assessing RNA within LNPs.
- To determine the encapsulation efficiency of standard RNA LNP formulations.
- To provide a tool for optimizing LNP-based nucleic acid delivery systems.
Main Methods:
- Utilized a viral RNA binding protein and its specific monoclonal antibody.
- Employed a magnetic bead-based system for separation and quantification.
- Quantified encapsulated versus surface-exposed mRNA within LNPs.
Main Results:
- Successfully developed an assay to differentiate surface-exposed from encapsulated RNA.
- Demonstrated the ability to determine RNA encapsulation efficiency in LNPs.
- The assay allows for manipulation of components to optimize encapsulation.
Conclusions:
- The developed assay is effective for evaluating RNA encapsulation in LNPs.
- This method can aid in optimizing LNP formulations for enhanced nucleic acid delivery.
- The assay has broad applications in advancing LNP technology for therapeutics and vaccines.
