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Light-Controlled Small Extracellular Vesicle-Based Spherical Nucleic Acid Nanomotor for Enhanced Transdermal Delivery
1Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, No. 639 Longmian Avenue, Jiangning District, Nanjing, 211198, Jiangsu Province, China.
Nano Letters
|May 23, 2025
Summary
Mesenchymal stem cell-derived extracellular vesicles show potential for anti-skin aging. A novel light-controlled nanomotor enhances their skin penetration and delivery for synergistic therapy.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Dermatology
Background:
- Small extracellular vesicles (sEV) from mesenchymal stem cells offer therapeutic potential for skin aging.
- Clinical use is limited by poor transdermal delivery of sEVs.
- Developing effective delivery systems is crucial for sEV-based anti-aging therapies.
Purpose of the Study:
- To develop a light-controlled nanomotor for enhanced transdermal delivery of sEVs.
- To create a synergistic anti-skin aging therapy combining sEV paracrine effects and gene therapy.
- To investigate the efficacy of the nanomotor in a preclinical model.
Main Methods:
- Fabrication of a nanomotor (NM-ESNA) with an sEV core and MMP1-targeting siRNA shell.
- Integration of light-responsive gas-generating molecules for enhanced dermal penetration.
- Evaluation of transdermal delivery, synergistic therapy, and anti-aging effects in a mouse model.
Main Results:
- The NM-ESNA demonstrated efficient light-controlled deep transdermal delivery.
- Synergistic anti-skin aging effects were achieved through combined sEV paracrine action and MMP1 gene silencing.
- Significant anti-aging outcomes were observed in the mouse model.
Conclusions:
- The developed NM-ESNA platform enables light-controlled, deep transdermal delivery of sEVs.
- This technology offers a promising strategy for noninvasive, synergistic anti-skin aging therapy.
- NM-ESNA holds significant potential for future clinical applications in cosmetic dermatology.
