Publication Date

2019

Document Type

Thesis

Committee Members

Ji C. Bihl (Advisor), Adrian M. Corbett (Committee Member), Yanfang Chen (Committee Member)

Degree Name

Master of Science (MS)

Abstract

In this study, we tested the protective effects of EPC-EXs (endothelial progenitor cell derived exosomes) and miR-126 EPC-EXs (microRNA-126 EPC-EXs) on the astrocytes injured by HG (high glucose) plus H/R (hypoxia/reoxygenation) model. At first, we determined the concentration and time dependent uptake of EPC-EXs by astrocytes. It was also found that the EPC-EXs were uptaken via macropinocytosis, caveolin-dependent and clathrin-mediated pathways in astrocytes. Furthermore, the astrocyte cell line was injured through the HG + H/R model. EXs, isolated by ultracentrifugation from the EPC culture supernatant were co-incubated with the injured cells. It was found that EPC-EXs and miR-126 EPC-EXs decrease apoptosis, lipid peroxidation, oxidative stress and cytotoxicity in the injured cells, hence protecting them.

Page Count

80

Department or Program

Department of Pharmacology and Toxicology

Year Degree Awarded

2019

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID ID

0000-0003-0936-6925


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