Related Experiment Video
Updated: Aug 3, 2025
08:29
Generation of Cationic Nanoliposomes for the Efficient Delivery of In Vitro Transcribed Messenger RNA
Published on: February 1, 2019
10.1K
Efficient mRNA Delivery with Lyophilized Human Serum Albumin-Based Nanobubbles
Hiroshi Kida1, Yutaro Yamasaki1, Loreto B Feril1
1Department of Anatomy, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan.
Nanomaterials (Basel, Switzerland)
|April 13, 2023
Summary
Researchers optimized lyophilization to preserve human serum albumin-based nanobubbles (HSA-NBs) without stabilizers. These preserved HSA-NBs show potential as effective mRNA delivery and imaging systems for medical applications.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Drug Delivery Systems
Background:
- Preserving nanocarriers like human serum albumin-based nanobubbles (HSA-NBs) is crucial for their clinical application.
- Existing preservation methods often require artificial stabilizers, which can complicate formulation and potentially introduce toxicity.
- Developing stabilizer-free preservation techniques is essential for efficient and safe nanomedicine development.
Purpose of the Study:
- To develop and optimize a lyophilization method for preserving HSA-NBs without artificial stabilizers.
- To evaluate the structural integrity and physicochemical properties of HSA-NBs after lyophilization and regeneration.
- To assess the functionality of regenerated HSA-NBs for ultrasound imaging and mRNA delivery applications.
Main Methods:
- Lyophilization optimization for HSA-NBs.
- Morphological characterization using scanning electron microscopy.
- Physicochemical property analysis (concentration, size, mass) via flow cytometry, nanoparticle tracking analysis, and resonance mass measurements.
- Evaluation of ultrasound (US) response and contrast effect.
- Assessment of mRNA delivery efficiency via Gluc mRNA expression analysis.
Main Results:
- The optimized lyophilization method successfully preserved HSA-NBs without the need for artificial stabilizers.
- Regenerated HSA-NBs maintained their structural morphology, concentration, size, and mass compared to pre-lyophilization states.
- HSA-NBs demonstrated effective ultrasound contrast enhancement and facilitated intracellular mRNA delivery, with efficiency correlating to US irradiation intensity.
- Significant retention of structural and functional integrity was observed post-lyophilization.
Conclusions:
- Lyophilized HSA-NBs represent a stable and efficient platform for mRNA delivery.
- These preserved HSA-NBs show promise as versatile tools for medical imaging and drug delivery applications.
- The developed stabilizer-free lyophilization technique offers a significant advancement in nanomedicine preservation.
