Principles and Problems of Exosome Isolation from Biological Fluids
E I Yakubovich1, A G Polischouk1, V I Evtushenko1
1Granov Russian Research Center for Radiology and Surgical Technologies, Ministry of Health of the Russian Federation, 197758 St. Petersburg, Russia.
Summary
Standardized exosome isolation is crucial for clinical applications. This review explores various methods for isolating exosomes (small membrane extracellular vesicles) from biological fluids, discussing their pros and cons.
Area of Science:
- Biochemistry
- Cell Biology
- Nanotechnology
Background:
- Exosomes, a class of extracellular vesicles, show significant promise for diagnostics and therapeutics.
- Current limitations in exosome isolation and analysis hinder clinical translation of exosome-based technologies.
Purpose of the Study:
- To review existing challenges in exosome isolation from biological samples.
- To present a comprehensive overview of traditional and alternative exosome isolation techniques.
- To discuss the advantages and disadvantages of various isolation methods based on exosome properties.
Main Methods:
- Literature review of exosome isolation techniques.
- Analysis of methods based on physical properties (e.g., size, density).
- Analysis of methods based on biochemical properties (e.g., surface markers).
Main Results:
- Various isolation methods exist, each with specific benefits and drawbacks.
- No single method is universally optimal for all applications.
- Standardization is needed for reliable exosome isolation.
Conclusions:
- Efficient and standardized exosome isolation is key to advancing clinical applications.
- Understanding the principles behind different isolation techniques is essential for selecting the appropriate method.
- Further research into optimized isolation strategies is warranted.


