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Adhesion and differentiation of adipose-derived stem cells on a substrate with immobilized fibroblast growth factor

Paper ID Volume ID Publish Year Pages File Format Full-Text
1068 74 2012 9 PDF Available
Title
Adhesion and differentiation of adipose-derived stem cells on a substrate with immobilized fibroblast growth factor
Abstract

Control of cell–matrix interactions plays a role in the regulation of stem cell function. In this study basic fibroblast growth factor (bFGF) linked to maltose-binding protein (MBP) was designed as a matrix for cell adhesion. MBP–FGF was immobilized on polystyrene (PS) surfaces by spontaneous adsorption. The amount of MBP–bFGF immobilized on the PS surface increased with increasing protein concentration, being 158 ng cm−2 at 10 μg ml−1 protein. Human adipose-derived stem cell (hASC) adhesion to MBP–bFGF immobilized on a PS surface (PS–MBP–bFGF) was inhibited by heparin. Integrin signaling and cell spreading of hASC on PS–MBP–bFGF were down-regulated compared with those on fibronectin-coated surfaces or tissue culture polystyrene (TCP). hASC differentiated into adipocytes, which stained positive for lipid vacuoles with Oil Red, more readily on PS–MBP–bFGF than on TCP. In contrast, hASC hardly differentiated into osteoblast on PS–MBP–bFGF or on TCP. These results suggest that the mechanism of hASC adhesion to MBP–bFGF immobilized on a PS substrate is mediated by a specific interaction between bFGF and heparin, and that the adhesion mechanism might provide an insight into the design of biomaterials to control the fate of stem cells.

Keywords
Artificial matrix; Cell adhesion; Adipose-derived stem cells; Cell differentiation; Immobilized basic fibroblast growth factor
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Adhesion and differentiation of adipose-derived stem cells on a substrate with immobilized fibroblast growth factor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 8, Issue 5, May 2012, Pages 1759–1767
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us