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Overview of Exosomes

Overview of Exosomes

Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...

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Updated: Aug 14, 2025

An Innovative Method for Exosome Quantification and Size Measurement

An Innovative Method for Exosome Quantification and Size Measurement

Published on: January 17, 2015

Advances in exosome analysis.

Arnau Pallares-Rusiñol¹, Mireia Bernuz¹, Silio Lima Moura¹

¹Institute of Biotechnology and Biomedicine, Universitat Autònoma de Barcelona, Bellaterra, Spain; Grup de Sensors i Biosensors, Departament de Química, Universitat Autònoma de Barcelona, Bellaterra, Spain.

Advances in Clinical Chemistry

|January 15, 2023

Summary

This summary is machine-generated.

Exosome analysis offers a promising avenue for early disease detection and monitoring. Current methods are challenging, but new techniques are emerging for exosome isolation and characterization.

Keywords:

ELISA Exosomes Flow cytometry Immunomagnetic separation Liquid biopsy NTA Nanovesicles PCR Solid-phase preconcentration

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Rapid Fluorescence-based Characterization of Single Extracellular Vesicles in Human Blood with Nanoparticle-tracking Analysis

Rapid Fluorescence-based Characterization of Single Extracellular Vesicles in Human Blood with Nanoparticle-tracking Analysis

Published on: January 7, 2019

Area of Science:

Biotechnology
Nanomedicine
Biomarker Discovery

Background:

Growing demand for novel biomarkers for early disease detection and monitoring.
Exosomes, nanometric vesicles released by cells, hold potential as biomarkers.
Current exosome characterization methods are time-consuming and require specialized equipment.

Purpose of the Study:

To review methodologies for exosome isolation, characterization, and quantification.
To explore the potential of exosomes as biomarkers in liquid biopsies.
To discuss advanced nanomedicine applications of exosomes.

Main Methods:

Review of current exosome isolation and purification techniques.
Discussion of characterization and quantification methods for exosomes.
Exploration of emerging technologies for exosome analysis.

Main Results:

Exosomes present unique challenges for analysis due to their size (30-200nm).
Traditional flow cytometry is often insufficient for exosome detection.
Existing methods involve multi-step processes requiring expertise and resources.

Conclusions:

Exosome analysis is crucial for advancing biomarker discovery and nanomedicine.
Development of efficient and sensitive exosome detection methods is needed.
Exosomes show significant promise for liquid biopsies and therapeutic monitoring.