Isolation and Identification of Plasma Extracellular Vesicles Protein Biomarkers

Extracellular vesiclesExtracellular vesicles (EVs) have emerged as a valuable source for disease biomarkersBiomarkers and an alternative drug delivery system due to their ability to carry cargo and target specific cells. Proper isolation, identification, and analytical strategy are required for evaluating their potential in diagnostics and therapeutics. Here, a method is detailed to isolate plasmaPlasma EVs and analyze their proteomicProteomics profiling, combining EVtrap-based high-recovery EV isolation, phase-transfer surfactant method for protein extraction, and mass spectrometryMass spectrometry qualitative and quantitative strategies for EV proteome characterization. The pipeline provides a highly effective EV-based proteome analysis technique that can be applied for EV characterization and evaluation of EV-based diagnosis and therapy.