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Small extracellular vesicles mediate the antihyperalgesic effect of bone marrow stromal cells: the role of "priming".

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Exosomes in perspective: a potential surrogate for stem cell therapy.

Ke Ren1

  • 1Department of Neural and Pain Sciences, School of Dentistry, & Program in Neuroscience, University of Maryland, 650 W. Baltimore St, Dental-8 South, Baltimore, MD, 21201, USA. kren@umaryland.edu.

Odontology
|October 17, 2018
PubMed
Summary

Mesenchymal stromal cell (MSC) exosomes show therapeutic potential, mimicking parent cell benefits. Research highlights their role in immune regulation and therapeutic outcomes, with ongoing studies exploring optimized exosome production for enhanced efficacy and safety.

Keywords:
Bone marrow stromal cellsExtracellular vesiclesImmune regulationMesenchymal stromal cellsPainTregs

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Area of Science:

  • Biomedical research
  • Cell biology
  • Immunology

Background:

  • Mesenchymal stromal cells (MSCs) are recognized for their therapeutic properties.
  • Exosomes, a subtype of small extracellular vesicles (sEVs), secreted by MSCs, are increasingly studied for their therapeutic potential.
  • MSC-derived exosomes can replicate the immunosuppressive and therapeutic effects of their parent cells.

Purpose of the Study:

  • To review recent findings on MSC-derived exosomes as an alternative to cell-based therapy.
  • To summarize the role of MSCs and their exosomes in immune cell regulation.
  • To discuss preclinical and clinical evidence, biodistribution, and pharmacokinetic profiles of MSC exosomes.

Main Methods:

  • Literature review of recent studies on MSC exosomes.
  • Analysis of exosome content (mediators, factors, nucleic acids) from various MSC sources.
  • Evaluation of in vitro vs. in vivo exosome characteristics and therapeutic efficiency.

Main Results:

  • MSC exosomes possess immunosuppressive properties and therapeutic benefits.
  • Exosome composition varies with MSC source, influencing function.
  • In vitro-derived exosomes may differ from in vivo counterparts; preconditioning MSCs can enhance exosome efficacy.

Conclusions:

  • MSC-derived exosomes represent a promising cell-free therapeutic alternative.
  • Further research is needed to understand exosome heterogeneity and optimize production for clinical applications.
  • Optimizing exosome production and characterizing their mechanisms are crucial for advancing MSC exosome-based therapies.