Cited by 204Extracellular vesicles in diseaseRNA Interference and Gene DeliveryNanoparticle-Based Drug Delivery

Delivery of Small Interfering RNA to Inhibit Vascular Endothelial Growth Factor in Zebrafish Using Natural Brain Endothelia Cell-Secreted Exosome Nanovesicles for the Treatment of Brain Cancer

Yang, Tianzhi, Fogarty, Brittany, LaForge, Bret, Aziz, Salma, Pham, Thuy, Lai, Leanne, Bai, Shuhua·2017·The AAPS Journal

Abstract

Although small interfering RNA (siRNA) holds great therapeutic promise, its delivery to the disease site remains a paramount obstacle. In this study, we tested whether brain endothelial cell-derived exosomes could deliver siRNA across the blood-brain barrier (BBB) in zebrafish. Natural exosomes were isolated from brain endothelial bEND.3 cell culture media and vascular endothelial growth factor (VEGF) siRNA was loaded in exosomes with the assistance of a transfection reagent. While fluorescence-activated cell flow cytometry and immunocytochemistry staining studies indicated that wild-type exosomes significantly increased the uptake of fluorescence-labeled siRNA in the autologous brain endothelial cells, decreased fluorescence intensity was observed in the cells treated with the tetraspanin CD63 antibody-blocked exosome-delivered formulation (p < 0.05). In the transport study, exosomes also enhanced the permeability of rhodamine 123 in a co-cultured monolayer of brain endothelial bEND.3 cell and astrocyte. Inhibition at the expression of VEGF RNA and protein levels was observed in glioblastoma-astrocytoma U-87 MG cells treated with exosome-delivered siRNAs. Imaging results showed that exosome delivered more siRNAs across the BBB in Tg(fli1:GFP) zebrafish. In a xenotransplanted brain tumor model, exosome-delivered VEGF siRNAs decreased the fluorescence intensity of labeled cancer cells in the brain of zebrafish. Brain endothelial cell-derived exosomes could be potentially used as a natural carrier for the brain delivery of exogenous siRNA.

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Crossref · 10.1208/s12248-016-0015-y

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52 of 52 references verified0 citation errors · 0 not checkable

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  • Some natural cell membranes such as exosomes without any functionalization have the ability to cross the BBB.

    “Some natural cell membranes such as exosomes without any functionalization have ability to cross the BBB.”

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Authors
Yang, T., Fogarty, B., LaForge, B., Aziz, S., Pham, T., Lai, L., & Bai, S.
Affiliations
  • Husson University (US)
  • Nova Southeastern University (US)
Corresponding author
Bai, Shuhua
Venue
The AAPS Journal
Published
2016-11-23
Volume
19
Issue
2
Pages
475-486
ISSN
1550-7416 (ISSN-L)
OpenAlex
W2552099798
Cited by
204
References
52
Citations by year
2026: 13 · 2025: 17 · 2024: 24 · 2023: 27 · 2022: 29 · 2021: 40 · 2020: 22 · 2019: 16 · 2018: 11 · 2017: 5
FWCI
5.55
Type
journal article
Language
en
Open access
closed
Locations
  • The AAPS Journal (publishedVersion)
  • PubMed (publishedVersion)
  • NSUWorks (Nova Southeastern University) (submittedVersion)
Funders
Husson University
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
exosomes, siRNA delivery, vascular endothelial growth factor, blood-brain barrier, brain endothelial cells, glioblastoma, brain cancer, CD63, bEnd.3 cells, zebrafish xenograft, U87 cells, astrocytes, tetraspanins
MeSH terms
Animals, Astrocytes, Blood-Brain Barrier, Brain, Brain Neoplasms, Humans, Transfection, Zebrafish, Gene Transfer Techniques, Coculture Techniques, RNA, Small Interfering, Vascular Endothelial Growth Factor A, Endothelial Cells, Cell Line, Tumor, Exosomes

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