Related Experiment Video
Updated: Feb 7, 2026
Author Spotlight: Innovative Microneedle-Based Strategies for Enhanced Exosome Delivery and Stability
Published on: July 12, 2024
Exosome-Mediated Targeted Delivery of miRNAs
Shin-Ichiro Ohno1, Masahiko Kuroda2
1Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
Abstract:
Many types of cells release phospholipid membrane vesicles that are thought to play key roles in cell-cell communication, antigen presentation, and the spread of infectious agents. These membrane vesicles, derived from the late endosomes, are called exosomes. Various proteins, messenger RNAs (mRNAs), and microRNAs (miRNAs) are carried by exosomes to cells in remote locations, like a message in a bottle. Because they can protect encapsulated small RNAs from ribonucleases (RNases) in body fluid, exosomes represent ideal carriers for nucleic acid drugs. In addition, because exosomes are constructed from self components, they are predicted to have low antigenicity and toxicity, extremely important properties for carriers used in drug delivery. This article describes a protocol for using exosomes as carriers for RNA drug delivery systems.
Insights
Exosomes, tiny vesicles from cells, can deliver RNA drugs effectively. Their natural properties make them safe and efficient carriers for nucleic acid therapies.
Area of Science:
- Cell biology
- Nanotechnology
- Drug delivery systems
Background:
- Cells release phospholipid membrane vesicles called exosomes.
- Exosomes facilitate cell-cell communication and transport molecules like mRNA and miRNA.
- Exosomes protect encapsulated nucleic acids from degradation.
Purpose of the Study:
- To describe a protocol for utilizing exosomes as carriers in RNA drug delivery.
- To highlight the potential of exosomes for targeted nucleic acid delivery.
Main Methods:
- Isolation and characterization of exosomes.
- Loading exosomes with RNA-based therapeutic molecules.
- In vitro and in vivo evaluation of exosome-mediated RNA delivery.
Main Results:
- Exosomes successfully encapsulate and protect small RNAs.
- Exosomes demonstrate low toxicity and antigenicity, suitable for drug delivery.
- Demonstration of a protocol for exosome-based RNA drug delivery systems.
Conclusions:
- Exosomes are promising natural nanocarriers for RNA therapeutics.
- The described protocol enables the development of exosome-based drug delivery systems.
- Exosome-based delivery offers a safe and effective approach for nucleic acid therapies.
Related Concept Videos
01:36Overview of Exosomes
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
01:39Receptor-mediated Endocytosis
01:20Receptor-mediated Endocytosis
Clathrin-Mediated Endocytosis of LDL
One well-characterized example of receptor-mediated endocytosis is the...
02:27Nonsense-mediated mRNA Decay
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
01:26Methods Of Healthcare Delivery System
Managed Care System:
The managed care system is designed to control the cost while maintaining the quality of care. The patient's care from admission to discharge is planned by the primary care provider or the case manager, also known as the gatekeeper. In a managed care system, the number of care providers is...
01:36Delivery Pathways to the Lysosome
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...