Advances in extracellular vesicle research: tools and techniques

Area of Science:

• Biotechnology
• Cell Biology
• Nanomedicine

Background:

• Extracellular vesicles (EVs) are endogenous vesicles with significant physiological and pathological roles.
• EVs are promising biomarkers for disease detection and therapeutic delivery vectors.
• Accurate functional and clinical analysis of EVs necessitates reliable isolation, labeling, imaging, and characterization methods.

Purpose of the Study:

• To provide a comprehensive comparative analysis of current methods for isolating and analyzing extracellular vesicles (EVs).
• To address the lack of detailed reports covering isolation, imaging, labeling, and characterization of EVs.
• To assist researchers in selecting appropriate EV analysis techniques for fundamental and clinical research.

Main Methods:

• Review of traditional and emerging EV isolation techniques (ultracentrifugation, ultrafiltration, chromatography, precipitation, microfluidics).
• Summary of various EV labeling strategies (fluorescent, nanoparticle, radiolabeling, genetic).
• Discussion of state-of-the-art imaging and characterization technologies (electron microscopy, fluorescence microscopy, flow cytometry, mass spectrometry, molecular profiling).

Main Results:

• Comparison of advantages and disadvantages of different EV isolation and analysis methods.
• Evaluation of method performance, scalability, and reproducibility for application-specific suitability.
• Identification of current gaps and future research directions in EV analysis.

Conclusions:

• This review offers a comparative analysis of EV isolation and characterization techniques to guide researchers.
• Method selection should be based on application-specific suitability, performance, scalability, and reproducibility.
• Future research should prioritize improved detection, novel analytical platforms, and AI integration for enhanced EV characterization specificity.