Salivary Extracellular Vesicles: Paradigm Shift in Liquid Biopsy Diagnostics

Area of Science:

• Biochemistry
• Cell Biology
• Biomarkers

Background:

• Extracellular vesicles (EVs) are key intercellular communicators.
• EVs are implicated in various pathophysiological processes.
• EVs show potential as diagnostic and prognostic biomarkers.

Purpose of the Study:

• To review the current landscape of salivary EVs.
• To highlight their unique characteristics and diagnostic potential.
• To discuss challenges and future prospects for clinical translation.

Main Methods:

• Literature review of salivary EV research.
• Analysis of EV characteristics and diagnostic applications.
• Discussion of technical challenges and clinical translation.

Main Results:

• Saliva is an accessible biofluid with a low protein content, ideal for EV isolation.
• Salivary EVs show promise for diagnosing cancers, autoimmune diseases, and neuropsychiatric disorders.
• Technical challenges exist but are being addressed for clinical use.

Conclusions:

• Salivary EVs represent a powerful, minimally invasive tool for disease diagnosis.
• Further research and technological advancements are needed for widespread clinical adoption.
• EVs in saliva offer a promising avenue for liquid biopsy-based diagnostics.