Recent Advances in Exosomal miRNA Biosensing for Liquid Biopsy

Area of Science:

• Biomarkers
• Molecular Diagnostics
• Cancer Research

Background:

• Liquid biopsy is a noninvasive technique crucial for cancer diagnosis, monitoring, and prognosis.
• Exosomes, as intercellular communication carriers, transport microRNAs (miRNAs) and are key biomarkers in liquid biopsies.
• Exosomal miRNAs (exo-miRNAs) are vital for regulating cell functions, making their detection informative for cancer assessment.

Purpose of the Study:

• To review recent advancements in exosomal miRNA (exo-miRNA) assay designs and detection strategies.
• To outline current bioassay methods employed in liquid biopsies for cancer detection.
• To discuss the challenges and future prospects of exosome-based bioassays.

Main Methods:

• Review of recent literature on exo-miRNA assay designs.
• Analysis of signal transduction, amplification, and detection strategies in exo-miRNA assays.
• Examination of current bioassay methodologies for liquid biopsies.

Main Results:

• Various exo-miRNA assay designs focusing on signal transduction and amplification have been developed.
• Current bioassay methods in liquid biopsies show promise for sensitive and reliable detection.
• The review synthesizes different approaches to exo-miRNA detection and bioassays.

Conclusions:

• Sensitive, convenient, and reliable exo-miRNA assays are essential for advancing medical diagnostics.
• Exosome bioassays hold significant potential for improving cancer diagnosis and monitoring via liquid biopsies.
• Further development is needed to overcome challenges and realize the full prospects of exosome bioassays.