Cited by 120Bone Tissue Engineering MaterialsSilk-based biomaterials and applicationsElectrospun Nanofibers in Biomedical Applications

Electrospun Silk Fibroin Scaffolds with Macropores for Bone Regeneration: An In Vitro and In Vivo Study

Park, Sook Young, Ki, Chang Seok, Park, Young Hwan, Jung, Hong Moon, Woo, Kyung Mi, Kim, Hyun Jeong·2010·Tissue Engineering Part A

Abstract

We developed three-dimensional electrospun silk fibroin (ESF) scaffolds with controllable pore size. The purpose of this study was to evaluate ESF scaffolds with pores (P-ESF) for bone regeneration via in vitro and in vivo studies, with a comparison to a commercially available porous three-dimensional polylactic acid (PLA) scaffold. P-ESF supported significantly higher proliferation and alkaline phosphatase activity of osteoblasts than PLA in vitro (p < 0.05). Moreover, higher expression levels of activated adhesion-related proteins, including focal adhesion kinase, were observed in the P-ESF than in PLA, as confirmed by western blot analyses. Microcomputed tomography revealed that 78.30% of the original bone volume was attained in the P-ESF implantation group at 7 weeks after critical bone defect formation in rat calvaria. Comparatively, the PLA implantation group showed only 49.31%. Histological evaluation also showed new bone tissue formation upon P-ESF implantation. Taken together, the P-ESF scaffold may be a good bone substitute for bone regeneration.

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Crossref · 10.1089/ten.tea.2009.0328

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  • Silk fibroin scaffolds prepared by electrostatic spinning significantly promote ALP activity and osteogenic differentiation ability of mouse embryonic osteoblast precursor cells (MC3T3-E1).

    “The researchers used the three-dimensional porous scaffolds of silk fibroin prepared by electrostatic spinning and three-dimensional PLA scaffolds to carry out experimental comparative studies, and the results showed that the silk fibroin scaffolds could significantly promote the ALP activity and osteogenic differentiation ability of mouse embryonic osteoblast precursor cells (MC3T3-E1);”
  • Silk fibroin scaffolds are significantly superior to PLA scaffolds in the ability to form new bone in animal experiments.

    “moreover, the silk fibroin scaffolds were significantly superior to the PLA scaffolds in terms of the ability to form new bone in the animal experiments [75], which suggests that electrostatically spun silk fibroin scaffolds have good potential for bone tissue repair.”

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Authors
Park, S. Y., Ki, C. S., Park, Y. H., Jung, H. M., Woo, K. M., & Kim, H. J.
Affiliations
Seoul National University (KR)
Corresponding author
Kim, Hyun Jeong
Venue
Tissue Engineering Part A
Published
2010-04
Volume
16
Issue
4
Pages
1271-1279
ISSN
  • 1937-3341 (ISSN-L)
  • 1937-335X
OpenAlex
W2066288600
Cited by
120
References
44
Citations by year
2026: 2 · 2025: 7 · 2024: 5 · 2023: 2 · 2022: 6 · 2021: 7 · 2020: 8 · 2019: 11 · 2018: 7 · 2017: 9 · 2016: 12 · 2015: 10 · 2014: 11 · 2013: 5 · 2012: 7
FWCI
3.60
Type
journal article
Language
en
Open access
closed
Locations
  • Tissue Engineering Part A (publishedVersion)
  • PubMed (publishedVersion)
  • Seoul National University Open Repository (Seoul National University) (submittedVersion)
Funders
  • Korea Science and Engineering Foundation
  • European Social Fund
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
  • Physical Sciences › Materials Science › Biomaterials › Silk-based biomaterials and applications
  • Physical Sciences › Materials Science › Biomaterials › Electrospun Nanofibers in Biomedical Applications
Keywords
silk fibroin, electrospun scaffolds, macropores, bone regeneration, bone substitutes, polylactic acid scaffolds, osteoblast proliferation, alkaline phosphatase activity, focal adhesion kinase, critical-size calvarial defect, new bone formation, pore size control
MeSH terms
Animals, Biocompatible Materials, Bone Regeneration, Fibroins, Male, Materials Testing, Microscopy, Electron, Scanning, Polyesters, Polymers, Radiography, Bombyx, Skull, 3T3 Cells, Rats, Sprague-Dawley, Lactic Acid, Tissue Engineering, Mice, Rats, Tissue Scaffolds

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