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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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Exocytosis00:51

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Exocytosis is used to release material from cells. Like other bulk transport mechanisms, exocytosis requires energy.
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Vesicular Trasport: Endocytosis, Transcytosis and Exocytosis01:18

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Vesicular transport is a cellular process that encompasses the engulfment of particles or dissolved substances by cells. It involves endocytosis, transcytosis, and exocytosis.
Endocytosis is a cellular mechanism that involves the inward folding of the cell membrane to create vesicles that capture and transport large drug molecules. This process comprises two distinct methods: pinocytosis (often referred to as "cell drinking") and phagocytosis (often referred to as "cell...
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Related Experiment Video

Updated: Oct 2, 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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Physical exosome:exosome interactions.

Elie Beit-Yannai1, Saray Tabak1, W Daniel Stamer2

  • 1Clinical Biochemistry and Pharmacology department, Ben-Gurion University of the Negev, Beer-Sheva, Israel.

Journal of Cellular and Molecular Medicine
|January 30, 2018
PubMed
Summary
This summary is machine-generated.

Cells release exosomes to form dimers with incoming exosomes, potentially blocking their signaling. This novel mechanism could impact cellular communication and disease processes.

Keywords:
exosomehypothesisphysical interactionsignallingzeta potential

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Sample Preparation and Imaging of Exosomes by Transmission Electron Microscopy
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Sample Preparation and Imaging of Exosomes by Transmission Electron Microscopy
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Sample Preparation and Imaging of Exosomes by Transmission Electron Microscopy

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Area of Science:

  • Cell biology
  • Nanotechnology
  • Signaling pathways

Background:

  • Exosomes are key mediators of intercellular communication through the transfer of biomolecules.
  • Exosome-exosome dimers are observed but their functional significance remains largely unexplored.
  • Understanding exosome interactions is crucial for deciphering complex biological processes.

Purpose of the Study:

  • To propose and investigate the role of exosome-exosome dimer formation in modulating intercellular signaling.
  • To hypothesize that cells release exosomes to interact with and attenuate incoming exosome signaling.
  • To outline experimental approaches for validating this novel hypothesis.

Main Methods:

  • Literature review on exosome biology and dimer formation.
  • Hypothetical modeling of exosome-exosome interactions.
  • Proposal of experimental designs to test the functional relevance of exosome dimers.

Main Results:

  • Published data show exosome-exosome dimer formation is a common phenomenon.
  • A novel hypothesis is presented: exosome dimers act as signaling attenuators.
  • Potential experimental strategies are discussed for validation.

Conclusions:

  • Exosome-exosome dimer formation represents a previously unrecognized mechanism of signal regulation.
  • This interaction may play a significant role in maintaining cellular homeostasis and in disease pathogenesis.
  • Further research is warranted to explore the therapeutic potential of targeting exosome-exosome interactions.