Basic fibroblast growth factor released from fucoidan-modified chitosan/alginate scaffolds for promoting fibroblasts migration

ORIGINAL PAPER
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Abstract

Wound repair process is initiated immediately after injury by releasing a variety of growth factors. It is known that basic fibroblast growth factor (bFGF) promoted fibroblasts migration, proliferation and effective helped skin wound healing. However, the use of bFGF is limited by two drawbacks, which are its short half-life and easily degraded by enzymes. In this study, we fabricate fucoidan-modified chitosan/alginate (F-CS/Alg) scaffold to protect and control release bFGF to regulate fibroblast migration activity. The experimental results show that oversulfated fucoidan was successfully prepared, with 43% sulfation degree. The 43% sulfated fucoidan (F43) exhibited effective DPPH scavenging activity, good biocompatibility and protected bFGF from trypsin degradation. The F43-CS/Alg scaffold could maintain bFGF activity and control its release, reaching 2.52 ng/mL for 10 h releasing. In vitro cell studies demonstrate that F43-CS/Alg scaffold showed a considerable elevation in cell viability and promoted L929 fibroblasts migration efficiently. In brief, bFGF loaded F43-CS/Alg scaffold effectively accelerating fibroblast migration for wound repair and could have a great potential in clinical applications in the future.

Keywords

Basic fibroblast growth factor Fucoidan Chitosan Sulfation degree Fibroblast migration 

Notes

Acknowledgments

The authors would like to thank the National Science Council of the Republic of China, Taiwan for financially supporting this research under Contract No. MOST 104-2221-E-017-MY3. Thanks to Ms. C.Y. Chien of Ministry of Science and Technology for the assistance in SEM experiments. Wallace Academic Editing is appreciated for editorial assistance.

Supplementary material

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Authors and Affiliations

  1. 1.Department of Food Science, College of Life ScienceNational Taiwan Ocean UniversityKeelungTaiwan

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