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Related Experiment Video

Updated: Aug 16, 2025

Optimizing Extracellular Vesicle Delivery Using a Core-Sheath 3D-Bioprinted Scaffold for Chronic Wound Management
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Native and engineered extracellular vesicles for wound healing.

Shengli Lu1, Liping Lu2, Yang Liu1,3

  • 1Department of Plastic Surgery, The Third Xiangya Hospital, Central South University, Changsha, China.

Frontiers in Bioengineering and Biotechnology
|December 26, 2022
PubMed
Summary

Extracellular vesicles (EVs) are cell-free therapeutic agents promoting wound healing by delivering growth factors. Engineering EVs enhances their specificity, safety, and efficiency for improved clinical applications in tissue repair.

Keywords:
chronic woundengineered extracellular vesiclesexosomeextracellular vesicleswound healing

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Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Cell Biology

Background:

  • Extracellular vesicles (EVs) mediate intercellular communication via nucleic acids, proteins, and lipids.
  • Native EVs are utilized in cell-free therapies for disease treatment, particularly in promoting wound healing.
  • EVs deliver essential growth factors like VEGF, EGF, TFN-α, IL-1β, and TGF-β, crucial for tissue repair processes.

Purpose of the Study:

  • To provide an overview of wound healing biology and the role of EVs.
  • To review the application of native EVs in promoting wound healing.
  • To outline recent advances in engineering EVs for enhanced therapeutic potential in wound healing.

Main Methods:

  • Review of current biological knowledge on wound healing and EVs.
  • Analysis of native EV applications in wound healing.
  • Exploration of EV engineering methodologies (parent cell modification, indirect modification).

Main Results:

  • Native EVs demonstrate therapeutic potential in wound healing by delivering key trophic factors.
  • EV engineering strategies can improve specificity, safety, and efficiency for wound healing applications.
  • Engineered EVs show promise for advanced wound care, though large-scale clinical translation requires further investigation.

Conclusions:

  • EVs represent a promising cell-free therapeutic strategy for wound healing.
  • Engineering EVs offers a pathway to optimize their therapeutic efficacy and clinical applicability.
  • Further research and innovative approaches are necessary to translate engineered EV therapies into widespread clinical use for wound management.