Cited by 60Bone Tissue Engineering MaterialsTissue Engineering and Regenerative MedicineSilk-based biomaterials and applications

Engineering a biomimetic bone scaffold that can regulate redox homeostasis and promote osteogenesis to repair large bone defects

Mac, Cam-Hoa, Chan, Hao-Yu, Lin, Yi-Hsuan, Sharma, Amit Kumar, Song, Hsiang-Lin, Chan, Yi-Sheng, Lin, Kun-Ju, Lin, Yu-Jung +1 more·2022·Biomaterials

Abstract

The reconstruction of a large bone defect to an extent that exceeds its self-healing capacity has been a great clinical challenge. In pursuit of this goal, a biomaterial-based scaffold that comprises radially aligned mineralized collagen (RA-MC) fibers that incorporate nanosilicon (RA-MC/nSi), is proposed. The chemical composition of the MC fibers is similar to that of natural bone matrices. The therapeutic efficacy of the RA-MC/nSi scaffold is evaluated in a mouse model with an experimentally created large calvarial defect. In vitro and in vivo results reveal that the RA-MC fibers of the scaffold guide the directional infiltration and migration of reparative cells from the host tissue toward the center of the defect, suggesting a potential application in promoting osteoconductivity. The incorporated nSi renders the scaffold able sustainably to release gaseous hydrogen and water-soluble silicic acid during the healing process. The released hydrogen gas can effectively regulate redox homeostasis and mitigate excessive inflammation, and the silicic acid can promote the proliferation of reparative cells and enhance their osteogenic differentiation, indicative of osteoinductivity. These findings support the use of the as-proposed biomimetic RA-MC/nSi scaffold as a promising bone substitute to enhance the regeneration of large bone defects.

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Crossref · 10.1016/j.biomaterials.2022.121574

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Authors
Mac, C.-H., Chan, H.-Y., Lin, Y.-H., Sharma, A. K., Song, H.-L., Chan, Y.-S., Lin, K.-J., Lin, Y.-J., & Sung, H.-W.
Affiliations
  • National Tsing Hua University (TW)
  • National Taiwan University Hospital (TW)
  • Linkou Chang Gung Memorial Hospital (TW)
  • Chang Gung University (TW)
Corresponding author
  • Lin, Kun-Ju
  • Lin, Yu-Jung
  • Sung, Hsing-Wen
Venue
Biomaterials
Publisher
Elsevier BV
Published
2022-07
Volume
286
Pages
121574
ISSN
0142-9612 (ISSN-L)
OpenAlex
W4280613369
Cited by
60
References
46
Citations by year
2026: 8 · 2025: 19 · 2024: 16 · 2023: 16 · 2022: 1
FWCI
3.78
Type
journal article
Language
en
Open access
closed
Locations
  • Biomaterials (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Chang Gung Memorial Hospital Linkou (CORPG3L0071)
  • Ministry of Education (MOE 110QR001I5)
  • Ministry of Science and Technology (110-2639-E-007-001- ASP, 110-2634-F-007-023)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Physical Sciences › Materials Science › Biomaterials › Silk-based biomaterials and applications
Keywords
bone scaffolds, nano-silicon, hydrogen release, silicic acid, redox homeostasis, bone formation, calvarial defect, osteoconductivity, osteoinductivity, inflammation reduction, bone regeneration, biomimetic biomaterials
MeSH terms
Animals, Bone Regeneration, Cell Differentiation, Collagen, Homeostasis, Hydrogen, Osteogenesis, Oxidation-Reduction, Silicic Acid, Tissue Engineering, Biomimetics, Mice, Tissue Scaffolds

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