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Published in: Translational Stroke Research 5/2018

Open Access 01-10-2018 | Original Article

Human Neural Stem Cell Extracellular Vesicles Improve Tissue and Functional Recovery in the Murine Thromboembolic Stroke Model

Authors: Robin L. Webb, Erin E. Kaiser, Shelley L. Scoville, Tyler A. Thompson, Sumbul Fatima, Chirayukumar Pandya, Karishma Sriram, Raymond L. Swetenburg, Kumar Vaibhav, Ali S. Arbab, Babak Baban, Krishnan M. Dhandapani, David C. Hess, M. N. Hoda, Steven L. Stice

Published in: Translational Stroke Research | Issue 5/2018

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Abstract

Over 700 drugs have failed in stroke clinical trials, an unprecedented rate thought to be attributed in part to limited and isolated testing often solely in “young” rodent models and focusing on a single secondary injury mechanism. Here, extracellular vesicles (EVs), nanometer-sized cell signaling particles, were tested in a mouse thromboembolic (TE) stroke model. Neural stem cell (NSC) and mesenchymal stem cell (MSC) EVs derived from the same pluripotent stem cell (PSC) line were evaluated for changes in infarct volume as well as sensorimotor function. NSC EVs improved cellular, tissue, and functional outcomes in middle-aged rodents, whereas MSC EVs were less effective. Acute differences in lesion volume following NSC EV treatment were corroborated by MRI in 18-month-old aged rodents. NSC EV treatment has a positive effect on motor function in the aged rodent as indicated by beam walk, instances of foot faults, and strength evaluated by hanging wire test. Increased time with a novel object also indicated that NSC EVs improved episodic memory formation in the rodent. The therapeutic effect of NSC EVs appears to be mediated by altering the systemic immune response. These data strongly support further preclinical development of a NSC EV-based stroke therapy and warrant their testing in combination with FDA-approved stroke therapies.
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Metadata
Title
Human Neural Stem Cell Extracellular Vesicles Improve Tissue and Functional Recovery in the Murine Thromboembolic Stroke Model
Authors
Robin L. Webb
Erin E. Kaiser
Shelley L. Scoville
Tyler A. Thompson
Sumbul Fatima
Chirayukumar Pandya
Karishma Sriram
Raymond L. Swetenburg
Kumar Vaibhav
Ali S. Arbab
Babak Baban
Krishnan M. Dhandapani
David C. Hess
M. N. Hoda
Steven L. Stice
Publication date
01-10-2018
Publisher
Springer US
Published in
Translational Stroke Research / Issue 5/2018
Print ISSN: 1868-4483
Electronic ISSN: 1868-601X
DOI
https://doi.org/10.1007/s12975-017-0599-2

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