Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit Model

Several studies have demonstrated a potential interaction between mesenchymal stem cells (MSCs) and saccular aneurysms. In this study, we sought to determine whether allogenic bone marrow-derived MSCs had the ability to prevent aneurysm formation in a known rabbit elastase aneurysm model. MSCs were...

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Main Authors: Michael B. Avery, Brooke L. Belanger, Amy Bromley, Arindom Sen, Alim P. Mitha
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Stem Cells International
Online Access:http://dx.doi.org/10.1155/2019/3618217
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author Michael B. Avery
Brooke L. Belanger
Amy Bromley
Arindom Sen
Alim P. Mitha
author_facet Michael B. Avery
Brooke L. Belanger
Amy Bromley
Arindom Sen
Alim P. Mitha
author_sort Michael B. Avery
collection DOAJ
description Several studies have demonstrated a potential interaction between mesenchymal stem cells (MSCs) and saccular aneurysms. In this study, we sought to determine whether allogenic bone marrow-derived MSCs had the ability to prevent aneurysm formation in a known rabbit elastase aneurysm model. MSCs were injected intravenously in experimental rabbits at the time of surgical creation and two weeks postcreation and compared with control rabbits receiving vehicle injection. Angiography was used to compare aneurysm measurements four weeks postcreation, and aneurysms were harvested for histological properties. Serum was collected longitudinally to evaluate cytokine alterations. Serum from control animals was also utilized to perform in vitro tests with MSCs to compare the effect of the serologic environment in animals with and without aneurysms on MSC proliferation and cytokine production. While aneurysm morphometric comparisons revealed no differences, significant cytokine alterations were observed in vitro and in vivo, suggesting both anti-inflammatory and proinflammatory processes were occurring in the presence of MSCs. Histological analyses suggested that tunica intima hyperplasia was inhibited in the presence of MSCs.
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spelling doaj-art-e74026a10e8c4686a3eddd183491884f2025-02-03T05:59:40ZengWileyStem Cells International1687-966X1687-96782019-01-01201910.1155/2019/36182173618217Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit ModelMichael B. Avery0Brooke L. Belanger1Amy Bromley2Arindom Sen3Alim P. Mitha4Department of Neurosciences, University of Calgary, Alberta, CanadaNeuroscience Graduate Program, University of Calgary, Alberta, CanadaDepartment of Pathology and Laboratory Medicine, University of Calgary, Alberta, CanadaPharmaceutical Production Research Facility, Schulich School of Engineering, University of Calgary, Alberta, CanadaDepartment of Neurosciences, University of Calgary, Alberta, CanadaSeveral studies have demonstrated a potential interaction between mesenchymal stem cells (MSCs) and saccular aneurysms. In this study, we sought to determine whether allogenic bone marrow-derived MSCs had the ability to prevent aneurysm formation in a known rabbit elastase aneurysm model. MSCs were injected intravenously in experimental rabbits at the time of surgical creation and two weeks postcreation and compared with control rabbits receiving vehicle injection. Angiography was used to compare aneurysm measurements four weeks postcreation, and aneurysms were harvested for histological properties. Serum was collected longitudinally to evaluate cytokine alterations. Serum from control animals was also utilized to perform in vitro tests with MSCs to compare the effect of the serologic environment in animals with and without aneurysms on MSC proliferation and cytokine production. While aneurysm morphometric comparisons revealed no differences, significant cytokine alterations were observed in vitro and in vivo, suggesting both anti-inflammatory and proinflammatory processes were occurring in the presence of MSCs. Histological analyses suggested that tunica intima hyperplasia was inhibited in the presence of MSCs.http://dx.doi.org/10.1155/2019/3618217
spellingShingle Michael B. Avery
Brooke L. Belanger
Amy Bromley
Arindom Sen
Alim P. Mitha
Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit Model
Stem Cells International
title Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit Model
title_full Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit Model
title_fullStr Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit Model
title_full_unstemmed Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit Model
title_short Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit Model
title_sort mesenchymal stem cells exhibit both a proinflammatory and anti inflammatory effect on saccular aneurysm formation in a rabbit model
url http://dx.doi.org/10.1155/2019/3618217
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