Vitronectin as a micromanager of cell response in material-driven fibronectin nanonetworks

Cantini, M. , Gomide, K., Moulisova, V. , González-García, C. and Salmerón-Sánchez, M. (2017) Vitronectin as a micromanager of cell response in material-driven fibronectin nanonetworks. Advanced Biosystems, 1(9), 1700047. (doi: 10.1002/adbi.201700047) (PMID:29497701) (PMCID:PMC5822048)

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Surface functionalization strategies of synthetic materials for regenerative medicine applications comprise the development of microenvironments that recapitulate the physical and biochemical cues of physiological extracellular matrices. In this context, material-driven fibronectin (FN) nanonetworks obtained from the adsorption of the protein on poly(ethyl acrylate) provide a robust system to control cell behavior, particularly to enhance differentiation. This study aims at augmenting the complexity of these fibrillar matrices by introducing vitronectin, a lower-molecular-weight multifunctional glycoprotein and main adhesive component of serum. A cooperative effect during co-adsorption of the proteins is observed, as the addition of vitronectin leads to increased fibronectin adsorption, improved fibril formation, and enhanced vitronectin exposure. The mobility of the protein at the material interface increases, and this, in turn, facilitates the reorganization of the adsorbed FN by cells. Furthermore, the interplay between interface mobility and engagement of vitronectin receptors controls the level of cell fusion and the degree of cell differentiation. Ultimately, this work reveals that substrate-induced protein interfaces resulting from the cooperative adsorption of fibronectin and vitronectin fine-tune cell behavior, as vitronectin micromanages the local properties of the microenvironment and consequently short-term cell response to the protein interface and higher order cellular functions such as differentiation.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Moulisova, Dr Vladimira and Salmeron-Sanchez, Professor Manuel and Gonzalez Garcia, Dr Cristina and Cantini, Dr Marco
Authors: Cantini, M., Gomide, K., Moulisova, V., González-García, C., and Salmerón-Sánchez, M.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Advanced Biosystems
ISSN (Online):2366-7478
Published Online:10 August 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Advanced Biosystems 1(9):1700047
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
626901HEALINSYNERGY - Material-driven fibronectin fibrillogenesis to engineer synergistic growth factor microenvironmentsManuel Salmeron-SanchezEuropean Research Council (ERC)306990ENG - BIOMEDICAL ENGINEERING
653731Synergistic microenvironments for non-union bone defectsMatthew DalbyMedical Research Council (MRC)MR/L0022710/1RI MOLECULAR CELL & SYSTEMS BIOLOGY