Cited by 99Bone Tissue Engineering MaterialsSilk-based biomaterials and applicationsElectrospun Nanofibers in Biomedical Applications

Biomimetic and osteogenic 3D silk fibroin composite scaffolds with nano MgO and mineralized hydroxyapatite for bone regeneration

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Wu, Ziquan, Meng, Zhulong, Wu, Qianjin, Zeng, Delu, Guo, Zhengdong, Yao, Jiangling, Bian, Yangyang, Gu, Yuntao +3 more·2020·Journal of Tissue Engineering

Abstract

Artificial bioactive materials have received increasing attention worldwide in clinical orthopedics to repair bone defects that are caused by trauma, infections or tumors, especially dedicated to the multifunctional composite effect of materials. In this study, a weakly alkaline, biomimetic and osteogenic, three-dimensional composite scaffold (3DS) with hydroxyapatite (HAp) and nano magnesium oxide (MgO) embedded in fiber (F) of silkworm cocoon and silk fibroin (SF) is evaluated comprehensively for its bone repair potential in vivo and in vitro experiments, particularly focusing on the combined effect between HAp and MgO. Magnesium ions (Mg 2+ ) has long been proven to promote bone tissue regeneration, and HAp is provided with osteoconductive properties. Interestingly, the weak alkaline microenvironment from MgO may also be crucial to promote Sprague-Dawley (SD) rat bone mesenchymal stem cells (BMSCs) proliferation, osteogenic differentiation and alkaline phosphatase (ALP) activities. This SF/F/HAp/nano MgO (SFFHM) 3DS with superior biocompatibility and biodegradability has better mechanical properties, BMSCs proliferation ability, osteogenic activity and differentiation potential compared with the scaffolds adding HAp or MgO alone or neither. Similarly, corresponding meaningful results are also demonstrated in a model of distal lateral femoral defect in SD rat. Therefore, we provide a promising 3D composite scaffold for promoting bone regeneration applications in bone tissue engineering.

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  • A recent study showed that Mg2+ at an appropriate concentration stimulated hBMSC osteogenic proliferation and differentiation.

    “a recent study showed that Mg2+ at an appropriate concentration stimulated hBMSC osteogenic proliferation and differentiation [52].”

    From Exosome-functionalized magnesium-organic framework-based scaffolds with osteogenic, angiogenic and anti-inflammatory properties for accelerated bone regeneration. (2022) · cites this paper as [52]

    The Discussion reports that scaffolds with an appropriate MgO content stimulated BMSC proliferation and osteogenic differentiation. But Materials and methods (Cell culture) identifies the cells as Sprague-Dawley rat BMSCs, not human BMSCs; the paper also attributes the effects to MgO-derived magnesium ions together with a weak alkaline microenvironment, rather than demonstrating an effect of Mg2+ alone. Page numbers were not available in our copy. (LLM, conf=0.90)

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Authors
Wu, Z., Meng, Z., Wu, Q., Zeng, D., Guo, Z., Yao, J., Bian, Y., Gu, Y., Cheng, S., Peng, L., & Zhao, Y.
Affiliations
  • Hainan Medical University (CN)
  • Taizhou Municipal Hospital (CN)
  • School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
Corresponding author
Peng, Lei
Venue
Journal of Tissue Engineering
Published
2020-01
Volume
11
Pages
2041731420967791-2041731420967791
ISSN
2041-7314 (ISSN-L)
OpenAlex
W3110553477
Cited by
99
References
76
Citations by year
2026: 9 · 2025: 9 · 2024: 26 · 2023: 9 · 2022: 23 · 2021: 23
FWCI
4.32
Type
journal article
Language
en
Open access
Locations
  • Journal of Tissue Engineering (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (Grant No. 81460339, Grant No. 81772316, Grant No. 82060347)
  • Hainan Provincial Foundation for Education Department (Grant No. Hnky2019ZD-28)
  • Medical Health Science and Technology Project of Zhejiang Provincial Health Commission (2020KY365)
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, hydroxyapatite, nano-MgO, bone regeneration, bone tissue engineering, bone mesenchymal stem cells, osteogenic differentiation, alkaline phosphatase activity, femoral defect, biocompatibility, biodegradability, mechanical properties

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