Advances in microfluidic extracellular vesicle analysis for cancer diagnostics

Area of Science:

• Biomedical Engineering
• Molecular Biology
• Cancer Research

Background:

• Extracellular vesicles (EVs), including exosomes, are key intercellular communicators.
• Tumor-derived EVs contain cancer-specific biomolecules, making them valuable for liquid biopsy.
• EV isolation and characterization are challenging due to their heterogeneity.

Purpose of the Study:

• To review microfluidic advancements for EV isolation and characterization.
• To survey microfluidic applications for EV-associated cancer biomarker analysis.
• To discuss challenges and future directions in microfluidic-based EV liquid biopsy.

Main Methods:

• Review of microfluidic principles and devices for EV isolation.
• Comparison of microfluidic techniques with conventional methods.
• Survey of microfluidic adaptations for analyzing EV protein and nucleic acid biomarkers.

Main Results:

• Microfluidics offers improved sensitivity, specificity, and throughput for EV analysis.
• Microfluidic platforms are advancing the clinical utility of EV-based liquid biopsies.
• Significant progress has been made in adapting microfluidics for cancer biomarker detection.

Conclusions:

• Microfluidics is a transformative technology for extracellular vesicle research.
• Microfluidic platforms hold great promise for cancer diagnosis and monitoring via liquid biopsy.
• Overcoming current challenges will further unlock the potential of EV-based diagnostics.