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Modulation of human mesenchymal stem cell survival on electrospun mesh with co-immobilized epithelial growth factor and gelatin

Title
Modulation of human mesenchymal stem cell survival on electrospun mesh with co-immobilized epithelial growth factor and gelatin
Author
신흥수
Keywords
TISSUE ENGINEERING APPLICATIONS; EXTRACELLULAR-MATRIX; ENDOTHELIAL-CELLS; ACRYLIC-ACID; SCAFFOLDS; PROLIFERATION; COLLAGEN; FABRICATION; DIFFERENTIATION; NANOFIBER
Issue Date
2015-10
Publisher
ROYAL SOC CHEMISTRY
Citation
RSC ADVANCES, v. 5, NO 69, Page. 55948-55956
Abstract
In this work, we present a biomimetic fibrous scaffold containing two biomolecules. A biocompatible poly(L-lactide-co-epsilon-caprolactone) mesh was fabricated by an electrospinning method, and then acrylic acid was grafted on the mesh to introduce a carboxyl group through gamma-ray irradiation. Subsequently, the epidermal growth factor (EGF) and gelatin were coupled to the mesh through the EDC reaction. The modified mesh presents a consistent fibre diameter (874.4 + 178.5 nm), with carboxyl groups (1.3 mM). EGF (171.7 ng mg(-1) mesh) and gelatin (67.2 +/- 30.5 mu g mg(-1) mesh) were successfully coupled on the mesh. The coupled EGF and gelatin promoted the cell viability 1.5- times higher than that from a non-modified mesh. In particular, the EGF on the meshes independently allowed hMSC to present a 3-times greater involucrin expression and enabled improved procollagen secretion, implying trans-differentiation of hMSC to keratinocyte-like cells. Therefore, the co-immobilization strategy of biomolecules using radiation technology may be an alternative tool for tissue engineering applications.
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2015/RA/C5RA01626F#!divAbstracthttp://hdl.handle.net/20.500.11754/28416
ISSN
2046-2069
DOI
10.1039/c5ra01626f
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > BIOENGINEERING(생명공학과) > Articles
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