Recombinant mussel coating protein fused with cell adhesion recognition motif enhanced cell proliferation
Endurable coating on biomedical substrates is one of the most important issues in biomedical engineering field. Recently, a robust yet reversible coating has found in the cuticle of mussel byssus and the mimicking of the mussel cuticle coating has been considered as a strategy to build up endurable coating on biomedical materials. To date, the only known protein in the cuticle is mussel foot protein-1 (fp-1). To form endurable and bioactive coating on the biomedical surface, the fusion protein of fp-1 and GRGDSP peptide (fp-1-RGD) was genetically designed and produced in E. coli. The fusion protein of fp-1-RGD was successfully expressed as a form of inclusion body and was simply purified by diluted acetic acid extraction with high purity (~95%). Fp-1-RGD was coated on the tissue culture polystyrene (TCPS) and showed better preosteoblast cell proliferation than that of TCPS. Therefore, the marriage of fp-1 and bioactive peptide can be a good strategy to form bioactive and endurable coating in biomedical field.
Keywordsbiomedical coating material mussel coating protein RGD peptide cell recognition motif fusion protein
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