Isolation of Extracellular Vesicles: General Methodologies and Latest Trends

Area of Science:

• Cell biology
• Biochemistry
• Biotechnology

Background:

• Extracellular vesicles (EVs) are crucial for intercellular communication and molecular transport.
• Diverse isolation methods and lack of standardized protocols complicate EV data interpretation.

Purpose of the Study:

• To review and compare classical and advanced methods for isolating EVs, including exosomes.
• To highlight the advantages and disadvantages of various EV isolation techniques.

Main Methods:

• Comparative analysis of EV isolation methods based on biochemical properties.
• Evaluation of isolation efficiency, EV yield, and isolated EV properties.
• Assessment of labor requirements for different EV isolation protocols.

Main Results:

• Most EV isolation methods produce mixed vesicle populations.
• No single method is universally superior; choice depends on experimental goals.
• Significant challenges persist in achieving adequate and standardized EV isolation.

Conclusions:

• Selecting appropriate EV isolation methods is critical for experimental success.
• The development of a universal EV isolation protocol is unlikely.
• Existing methods can be optimized for specific research or clinical applications.