Cited by 373Silk-based biomaterials and applicationsBone Tissue Engineering MaterialsTissue Engineering and Regenerative Medicine

Engineering adipose-like tissue in vitro and in vivo utilizing human bone marrow and adipose-derived mesenchymal stem cells with silk fibroin 3D scaffolds

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Mauney, Joshua R., Nguyen, Trang, Gillen, Kelly, Kirker-Head, Carl, Gimble, Jeffrey M., Kaplan, David L.·2007·Biomaterials

Abstract

Biomaterials derived from silk fibroin prepared by aqueous (AB) and organic (HFIP) solvent-based processes, along with collagen (COL) and poly-lactic acid (PLA)-based scaffolds were studied in vitro and in vivo for their utility in adipose tissue engineering strategies. For in vitro studies, human bone marrow and adipose-derived mesenchymal stem cells (hMSCs and hASCs) were seeded on the various biomaterials and cultured for 21 days in the presence of adipogenic stimulants (AD) or maintained as noninduced controls. Alamar Blue analysis revealed each biomaterial supported initial attachment of hMSCs and hASCs to similar levels for all matrices except COL in which higher levels were observed. hASCs and hMSCs cultured on all biomaterials in the presence of AD showed significant upregulation of adipogenic mRNA transcript levels (LPL, GLUT4, FABP4, PPARgamma, adipsin, ACS) to similar extents when compared to noninduced controls. Similarly Oil-Red O analysis of hASC or hMSC-seeded scaffolds displayed substantial amounts of lipid accumulating adipocytes following cultivation with AD. The data revealed AB and HFIP scaffolds supported similar extents of lipid accumulating cells while PLA and COL scaffolds qualitatively displayed lower and higher extents by comparison, respectively. Following a 4-week implantation period in a rat muscle pouch defect model, both AB and HFIP scaffolds supported in vivo adipogenesis either alone or seeded with hASCs or hMSCs as assessed by Oil-Red O analysis, however the presence of exogenous cell sources substantially increased the extent and frequency of adipogenesis observed. In contrast, COL and PLA scaffolds underwent rapid scaffold degradation and were irretrievable following the implantation period. The results suggest that macroporous 3D AB and HFIP silk fibroin scaffolds offer an important platform for cell-based adipose tissue engineering applications, and in particular, provide longer-term structural integrity to promote the maintenance of soft tissue in vivo.

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Crossref · 10.1016/j.biomaterials.2007.08.017

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  • Silk fibroin-based scaffold does not contain cell-specific signal expression in its primary sequence but provides a suitable matrix for supporting the proliferation and adhesion of mesenchymal stem cells.

    “Although the silk protein-based scaffold does not contain any cell-specific signal expression in its primary sequence, it provides a suitable matrix for supporting the proliferation and adhesion of mesenchymal stem cells [31,32].”

    From Recent Advances in Silk Fibroin-Based Composites for Bone Repair Applications: A Review (2025) · cites this paper as [32]

    The Results (page not available in our copy) show that human mesenchymal stem cells adhered to silk scaffolds, supporting the adhesion and suitable-matrix portion of the claim. The paper does not establish that the scaffolds support stem-cell proliferation or state that silk fibroin lacks cell-specific signals in its primary sequence. (LLM, conf=0.88)

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Authors
Mauney, J. R., Nguyen, T., Gillen, K., Kirker-Head, C., Gimble, J. M., & Kaplan, D. L.
Affiliations
  • Tufts University (US)
  • Pennington Biomedical Research Center (US)
Corresponding author
Kaplan, David L.
Venue
Biomaterials
Publisher
Elsevier BV
Published
2007-12
Volume
28
Issue
35
Pages
5280-5290
ISSN
0142-9612 (ISSN-L)
OpenAlex
W2095560028
Cited by
373
References
57
Citations by year
2026: 4 · 2025: 8 · 2024: 9 · 2023: 10 · 2022: 12 · 2021: 22 · 2020: 11 · 2019: 21 · 2018: 16 · 2017: 29 · 2016: 25 · 2015: 25 · 2014: 35 · 2013: 34 · 2012: 30
FWCI
9.15
Type
journal article
Language
en
Open access
Locations
  • Biomaterials (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Biomedical Imaging and Bioengineering (R01EB003210, P41EB002520)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Silk-based biomaterials and applications
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
adipose tissue engineering, silk fibroin scaffolds, adipose-derived stem cells, bone marrow mesenchymal stem cells, adipogenesis, collagen scaffolds, polylactic acid scaffolds, scaffold degradation, cell seeding, macroporous scaffolds
MeSH terms
Adipose Tissue, Adult, Animals, Biocompatible Materials, Bone Marrow Cells, Cell Differentiation, Cells, Cultured, Fibroins, Humans, Male, Rats, Nude, Bombyx, Tissue Engineering, Silk, Rats, Tissue Scaffolds, Mesenchymal Stem Cells

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