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pH-controlled recovery of placenta-derived mesenchymal stem cell sheets


Guillaume-Gentil, O; Semenov, O V; Zisch, A H; Zimmermann, R; Vörös, J; Ehrbar, M (2011). pH-controlled recovery of placenta-derived mesenchymal stem cell sheets. Biomaterials, 32(19):4376-4384.

Abstract

Widely used in different biomedical applications, polyelectrolyte multilayers provide inter alia an attractive way for manufacturing of bio-functionalized, stimuli responsive surface coatings to control cellular behavior. In this study a novel polyelectrolyte-based platform for the engineering and controllable detachment of human mesenchymal stem cell (MSC) sheets is presented. Thin films obtained by layer-by-layer deposition of cationic poly(allylamine hydrochloride) (PAH) and anionic poly(styrene sulfonate) (PSS) polyelectrolytes on conductive indium tin oxide (ITO) electrodes allowed for the fast formation of viable sheets from human placenta-derived mesenchymal stem cells (PD-MSCs). Resulting stem cell sheets retained their phenotypical profile and mesodermal differentiation potency. Both electrochemically-induced local pH lowering and global decrease of the environmental pH allowed for a rapid detachment of intact stem cell sheets. The recovered stem cell sheets remained viable and maintained their capacity to differentiate toward the adipogenic and osteogenic lineages. This novel polyelectrolyte multilayer based platform represents a promising, novel approach for the engineering of human stem cell sheets desired for future clinical applications.

Widely used in different biomedical applications, polyelectrolyte multilayers provide inter alia an attractive way for manufacturing of bio-functionalized, stimuli responsive surface coatings to control cellular behavior. In this study a novel polyelectrolyte-based platform for the engineering and controllable detachment of human mesenchymal stem cell (MSC) sheets is presented. Thin films obtained by layer-by-layer deposition of cationic poly(allylamine hydrochloride) (PAH) and anionic poly(styrene sulfonate) (PSS) polyelectrolytes on conductive indium tin oxide (ITO) electrodes allowed for the fast formation of viable sheets from human placenta-derived mesenchymal stem cells (PD-MSCs). Resulting stem cell sheets retained their phenotypical profile and mesodermal differentiation potency. Both electrochemically-induced local pH lowering and global decrease of the environmental pH allowed for a rapid detachment of intact stem cell sheets. The recovered stem cell sheets remained viable and maintained their capacity to differentiate toward the adipogenic and osteogenic lineages. This novel polyelectrolyte multilayer based platform represents a promising, novel approach for the engineering of human stem cell sheets desired for future clinical applications.

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29 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Obstetrics
04 Faculty of Medicine > Institute of Biomedical Engineering
Dewey Decimal Classification:170 Ethics
610 Medicine & health
Language:English
Date:2011
Deposited On:12 Jan 2012 17:01
Last Modified:05 Apr 2016 15:14
Publisher:Elsevier
ISSN:0142-9612
Publisher DOI:10.1016/j.biomaterials.2011.02.058
PubMed ID:21458856
Permanent URL: http://doi.org/10.5167/uzh-52944

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