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Electrospun fibrinogen: Feasibility as a tissue engineering scaffold in a rat cell culture model
Author(s) -
McManus Michael C.,
Boland Eugene D.,
Simpson David G.,
Barnes Catherine P.,
Bowlin Gary L.
Publication year - 2007
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.30989
Subject(s) - scaffold , tissue engineering , materials science , biomedical engineering , biocompatibility , glutaraldehyde , electrospinning , fibrinogen , cell culture , 3d cell culture , in vitro , biophysics , chemistry , polymer , biochemistry , biology , medicine , composite material , chromatography , metallurgy , genetics
Fibrinogen has a well‐established tissue engineering track record because of its ability to induce improved cellular interaction and scaffold remodeling compared to synthetic scaffolds. While the feasibility of electrospinning fibrinogen scaffolds of submicron diameter fibers and their mechanical properties have been demonstrated, in vitro cellular interaction has not yet been evaluated. The goal of this study was to demonstrate, based on cellular interaction and scaffold remodeling, that electrospun fibrinogen can be used successfully as a tissue engineering scaffold. Electrospun fibrinogen scaffolds were disinfected, seeded with neonatal rat cardiac fibroblasts, and cultured for 2, 7, and 14 days. Cultures were treated to regulate scaffold degradation by either supplementing serum‐containing media with aprotinin or crosslinking the scaffolds with glutaraldehyde vapor. Biocompatibility was assessed through a WST‐1 cell proliferation assay. Postculture scaffolds were evaluated by scanning electron microscopy and histology. Cell culture demonstrated that fibroblasts readily migrate into and remodel electrospun fibrinogen scaffolds with deposition of native collagen. Supplementation of culture media with different concentrations of aprotinin‐modulated scaffold degradation in a predictable fashion, but glutaraldehyde vapor fixation was less reliable. Based on the observed cellular interactions, there is tremendous potential for electrospun fibrinogen as a tissue engineering scaffold. © 2006 Wiley Periodicals, Inc. J Biomed Mater Res 2007