Isolation and Characterization of Integrin α9 Positive Extracellular Vesicles Derived from Human Corneoscleral Rings.

ABSTRACT: Corneoscleral-ring-derived extracellular vesicles represent a potential therapeutic strategy for promoting in vitro corneal wound healing. In this study, we successfully isolated and characterized extracellular vesicles from human corneolimbal tissue obtained from 42 donors, with a mean age of 51.62 ± 15.56 years. Donor-related factors such as age, corneal endothelial cell density, and underlying systemic conditions did not confound extracellular vesicle size and concentration with mean peak size of 99.52 ± 13.00 nm by nanoparticle tracking analysis. Western blotting analysis revealed positive Alix, stable expression of CD9 and CD81, and variable expression of CD63. Limbal stem cell (LSC)-associated markers, i.e., ABCG2, p63, Notch-1, and Integrin α9 were positively detected in the isolate

SUBMITTER: Lai HY 

PROVIDER: S-EPMC12654178 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature