Extracellular vesicles (EVs) are small membrane-bound particles secreted by cells facilitating intercellular communication. Utilizing advanced mass spectrometry techniques, researchers are conducting comprehensive analyses of both surface and vesicular proteome of EVs. The comprehensive study of the protein composition of EVs can unveil novel biological insights on the multifaceted roles of EVs in intercellular communication and their impact on physiological and pathological processes. In addition, EV proteomics can reveal novel liquid biomarkers and therapeutic targets, thereby improving the management and treatment of human diseases.
In biofluids, tissue-derived EVs are in very low abundance compared to blood-derived EVs, therefore the proteomic study of tissue-derived EVs requires rigorous control of pre-analytical procedures and reproducible analytical approaches.
This Collection in Clinical Proteomics aims to highlight the latest advancements in EV proteomics, showcasing innovative research utilizing cutting-edge proteomic techniques including mass spectrometry, proximity extension assays and protein microarrays. We encourage submissions leveraging proteomics to understand the role of EVs in cellular communication and their clinical value as disease biomarkers, including but not limited to:
• Methodological advancements in EV proteomics
• Optimization and standardization of pre-analytical factors for EV proteomics
• Proteomics of EVs from biofluids in normal conditions and diseases
• Biomarker discovery and validation
• Mechanisms of EV-mediated intercellular communication
• EVs in immune modulation, disease development and progression
• EV biogenesis and cargo sorting