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Nanostructured Biomaterials for Tissue Engineered Bone Tissue Reconstruction

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Author(s): Gardin Chiara | Ferroni Letizia | Favero Lorenzo | Stellini Edoardo | Stomaci Diego | Sivolella Stefano | Bressan Eriberto | Zavan Barbara

Journal: International Journal of Molecular Sciences
ISSN 1422-0067

Volume: 13;
Issue: 1;
Start page: 737;
Date: 2012;
Original page

Keywords: nanostructures | stem cells | bone | tissue engineering

ABSTRACT
Bone tissue engineering strategies are emerging as attractive alternatives to autografts and allografts in bone tissue reconstruction, in particular thanks to their association with nanotechnologies. Nanostructured biomaterials, indeed, mimic the extracellular matrix (ECM) of the natural bone, creating an artificial microenvironment that promotes cell adhesion, proliferation and differentiation. At the same time, the possibility to easily isolate mesenchymal stem cells (MSCs) from different adult tissues together with their multi-lineage differentiation potential makes them an interesting tool in the field of bone tissue engineering. This review gives an overview of the most promising nanostructured biomaterials, used alone or in combination with MSCs, which could in future be employed as bone substitutes. Recent works indicate that composite scaffolds made of ceramics/metals or ceramics/polymers are undoubtedly more effective than the single counterparts in terms of osteoconductivity, osteogenicity and osteoinductivity. A better understanding of the interactions between MSCs and nanostructured biomaterials will surely contribute to the progress of bone tissue engineering.
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