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Published on: February 7, 2018
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Engineered EVs for Oxidative Stress Protection
Anna Maria Tolomeo1,2, Santina Quarta2,3, Alessandra Biasiolo2,3
1Department of Women's and Children's Health, University of Padova, Via Giustiniani, 35128 Padova, Italy.
Pharmaceuticals (Basel, Switzerland)
|August 28, 2021
Summary
Engineered extracellular vesicles (EVs) overexpressing SerpinB3 provide enhanced protection against oxidative stress. These SerpinB3-enriched EVs offer superior cytoprotective effects compared to unmodified EVs or SerpinB3 alone.
Area of Science:
- Biotechnology
- Cell Biology
- Drug Delivery Systems
Background:
- Extracellular vesicles (EVs) are natural nanocarriers for intercellular communication and drug delivery.
- SerpinB3, a serine protease inhibitor, exhibits anti-apoptotic properties under stress.
- Enhancing EV therapeutic potential for cellular protection is an active research area.
Purpose of the Study:
- To investigate the potential of SerpinB3-overexpressing EVs (EVs-SB3) for enhanced protection against oxidative stress.
- To evaluate the impact of SerpinB3 enrichment in EVs on cellular homeostasis.
- To compare the cytoprotective efficacy of EVs-SB3 with naive EVs and SerpinB3 protein alone.
Main Methods:
- HepG2 cells were engineered to overexpress SerpinB3.
- EVs-SB3 were isolated from engineered cells and characterized proteomically.
- Hepatoma cell lines and primary cardiomyocytes were subjected to H2O2-induced oxidative stress.
- Cells were treated with EVs-SB3, naive EVs, or SerpinB3 protein.
Main Results:
- EVs-SB3 exhibited significant proteomic alterations compared to EVs from non-engineered cells.
- EVs-SB3 demonstrated significantly higher protection against H2O2-induced oxidative stress.
- The enhanced protection was observed in both hepatoma cells and primary cardiomyocytes.
- EVs-SB3 outperformed naive EVs and SerpinB3 protein alone in cytoprotective assays.
Conclusions:
- Overexpression of SerpinB3 in engineered EVs leads to enhanced cytoprotective activity.
- EVs-SB3 represent a promising strategy for delivering therapeutic cargo and protecting cells from oxidative damage.
- This approach enhances the therapeutic potential of extracellular vesicles for cellular homeostasis maintenance.
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