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Preparation of Exosomes for siRNA Delivery to Cancer Cells
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Exosomes Function in Pro- and Anti-Angiogenesis.

Mara Fernandes Ribeiro1, Hongyan Zhu1, Ronald W Millard1

  • 1Department of Pharmacology and Cell Biophysics, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.

Current Angiogenesis
|November 7, 2014
PubMed
Summary

Exosomes, tiny vesicles involved in cell communication, show dual roles in regulating endothelial cells. These natural nanoparticles hold therapeutic potential for delivering pro- or anti-angiogenic factors.

Keywords:
Angiogenesiscardiovascular diseaseendothelial cellsexosomesmultivesicular bodies

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Area of Science:

  • Cell Biology
  • Nanotechnology
  • Biochemistry

Background:

  • Exosomes are nanoscale extracellular vesicles mediating intercellular communication.
  • Their biogenesis involves multivesicular bodies (MVBs) fusing with the plasma membrane.
  • Exosomes contain diverse molecules influencing cell functions like survival, inflammation, and metastasis.

Purpose of the Study:

  • To review the dual roles of exosomes from various cell types in endothelial cell functions.
  • To highlight the therapeutic potential of exosomes in angiogenesis.
  • To focus on exosome-mediated delivery of angiogenic factors into endothelial cells.

Main Methods:

  • Literature review of studies on exosome function and therapeutic applications.
  • Analysis of exosome content and their impact on endothelial cell proliferation, migration, and tube formation.
  • Examination of exosome-based delivery systems for angiogenic factors.

Main Results:

  • Exosomes exhibit context-dependent pro- or anti-angiogenic effects on endothelial cells.
  • Different cell-derived exosomes (e.g., from stem cells, tumor cells) display varied impacts on endothelial cells.
  • Exosomes can be engineered to deliver therapeutic molecules like proteins, mRNAs, and microRNAs.

Conclusions:

  • Exosomes are crucial mediators of cell-to-cell communication with significant roles in angiogenesis.
  • Their therapeutic potential lies in their ability to act as natural nanoparticles for targeted delivery.
  • Further research into exosome engineering could unlock novel therapeutic strategies for vascular diseases.