Recent advances on protein-based quantification of extracellular vesicles

Area of Science:

• Biochemistry
• Cell Biology
• Nanotechnology

Background:

• Extracellular vesicles (EVs) mediate intercellular communication and are crucial biomarkers for physiological and pathological processes.
• EV proteins are essential for vesicle function, but their nanoscale size presents isolation and characterization challenges.
• Understanding EV biogenesis and function through proteomic profiling offers insights into clinical applications.

Purpose of the Study:

• To review conventional and emerging technologies for extracellular vesicle (EV) protein quantification.
• To analyze the pros, cons, and challenges of various EV protein analysis methods.
• To discuss future perspectives in EV protein analysis for clinical applications.

Main Methods:

• Review of conventional EV protein determination technologies.
• Detailed analysis of emerging techniques including optical, non-optical, microfluidic, and single vesicle detection methods.
• Comparison of emerging technologies based on performance, limitations, and applications.

Main Results:

• Conventional methods face limitations in EV protein quantification due to vesicle size and quantity.
• Emerging bioanalytical techniques, such as lab-on-a-chip and advanced flow cytometry, enable single-vesicle protein detection.
• These advanced methods offer improved sensitivity and specificity for EV protein analysis.

Conclusions:

• Advanced bioanalytical techniques significantly enhance the quantification of EV proteins, even at the single-vesicle level.
• Accurate EV protein analysis holds promise for early disease diagnosis and monitoring treatment efficacy.
• Further research into EV protein analysis methods is crucial for realizing their full clinical potential.