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Isolation, Characterization, and Therapeutic Application of Extracellular Vesicles from Cultured Human Mesenchymal Stem Cells
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Extracellular vesicles as potential tools for regenerative therapy

Jose Antonio Rodriguez-Navarro1, Jorge Pascual-Guerra1, Silvia Sacristan1

  • 1Instituto Ramón y Cajal de Investigaciones Sanitarias, IRYCIS Neurobiología-Investigación, Madrid, Spain.

Molecular & Cellular Oncology
|November 25, 2020
PubMed

Insights

Young fibroblast-derived extracellular vesicles reduce lipid peroxidation in aging cells and tissues. These vesicles are rich in Glutathione-S-transferase Mu, providing potent antioxidant activity against cellular damage.

Area of Science:

  • Cellular senescence
  • Extracellular vesicles biology
  • Aging research

Background:

  • Cellular senescence is linked to aging and disease.
  • Lipid peroxidation is a marker of oxidative stress in aging.
  • Extracellular vesicles (EVs) mediate intercellular communication.

Purpose of the Study:

  • To investigate the effects of fibroblast-derived EVs on senescent cells.
  • To determine the antioxidant capacity of young fibroblast EVs.
  • To explore the therapeutic potential of EVs in mitigating age-related oxidative damage.

Main Methods:

  • Isolation and characterization of small extracellular vesicles from young human fibroblasts.
  • Treatment of senescent cells and old mice organs with these EVs.
  • Assessment of lipid peroxidation levels and antioxidant enzyme activity.

Main Results:

  • EVs from young fibroblasts significantly reduced lipid peroxidation in senescent cells.
  • Similar protective effects were observed in various organs of old mice.
  • Enrichment of Glutathione-S-transferase Mu (GST-Mu) with high lipid antioxidant activity was identified in the EVs.

Conclusions:

  • Small extracellular vesicles from young fibroblasts possess potent anti-lipid peroxidation properties.
  • GST-Mu in these EVs is a key factor in their antioxidant function.
  • Fibroblast-derived EVs show promise as a therapeutic strategy against age-related oxidative stress.
Keywords:
Small extracellular vesiclesagingglutathione-S-transferase Mlipid peroxidationsenescence

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