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Related Concept Videos

Overview of Exosomes01:36

Overview of Exosomes

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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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Related Experiment Video

Updated: Nov 7, 2025

Isolation and Characterization of Exosomes from Skeletal Muscle Fibroblasts
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Isolation and Characterization of Exosomes from Skeletal Muscle Fibroblasts

Published on: May 16, 2020

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Exosomes: Isolation, characterization, and biomedical applications.

Ghadi N Alzhrani1, Sarah T Alanazi1, Sumayyah Y Alsharif1

  • 1Pharm D Program, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia.

Cell Biology International
|April 29, 2021
PubMed
Summary
This summary is machine-generated.

Exosomes, nano-sized vesicles, facilitate cell communication and show promise in diagnostics and therapeutics. This review covers their isolation, characterization, and biomedical potential.

Keywords:
biogenesisdiagnosticdrug deliveryexosomesisolationtherapeutic

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Area of Science:

  • Biotechnology
  • Cell Biology
  • Nanomedicine

Background:

  • Exosomes are nano-sized (30-150 nm) bioactive vesicles secreted by most cell types into extracellular fluid.
  • They are found in various biological fluids and play a role in intercellular communication through their cargo (lipids, proteins, nucleic acids).

Purpose of the Study:

  • To review the diagnostic potential of exosomes.
  • To explore the biomedical applications of exosomes.
  • To discuss current methods for exosome isolation, purification, and characterization.

Main Methods:

  • Literature review of exosome research.
  • Discussion of isolation techniques (e.g., ultracentrifugation, precipitation, size-exclusion chromatography).
  • Overview of characterization methods (e.g., nanoparticle tracking analysis, electron microscopy, western blotting).

Main Results:

  • Exosomes possess desirable features for therapeutic applications.
  • Exosomes can serve as diagnostic tools due to their presence in biofluids and unique cargo.
  • Various techniques exist for isolating and characterizing exosomes from biological samples and cell cultures.

Conclusions:

  • Exosomes are versatile nanovesicles with significant potential in diagnostics and therapeutics.
  • Further research into exosome isolation and characterization is crucial for advancing their clinical applications.
  • Exosomes represent a promising frontier in nanomedicine and regenerative therapies.