LAPSE:2021.0342
Published Article
LAPSE:2021.0342
Bioactive and Topographically-Modified Electrospun Membranes for the Creation of New Bone Regeneration Models
Dina Abdelmoneim, Ghsaq M. Alhamdani, Thomas E. Paterson, Martin E. Santocildes Romero, Beatriz J. C. Monteiro, Paul V. Hatton, Ilida Ortega Asencio
May 4, 2021
Bone injuries that arise from trauma, cancer treatment, or infection are a major and growing global challenge. An increasingly ageing population plays a key role in this, since a growing number of fractures are due to diseases such as osteoporosis, which place a burden on healthcare systems. Current reparative strategies do not sufficiently consider cell-substrate interactions that are found in healthy tissues; therefore, the need for more complex models is clear. The creation of in vitro defined 3D microenvironments is an emerging topographically-orientated approach that provides opportunities to apply knowledge of cell migration and differentiation mechanisms to the creation of new cell substrates. Moreover, introducing biofunctional agents within in vitro models for bone regeneration has allowed, to a certain degree, the control of cell fate towards osteogenic pathways. In this research, we applied three methods for functionalizing spatially-confined electrospun artificial microenvironments that presented relevant components of the native bone stem cell niche. The biological and osteogenic behaviors of mesenchymal stromal cells (MSCs) were investigated on electrospun micro-fabricated scaffolds functionalized with extracellular matrix (ECM) proteins (collagen I), glycosaminoglycans (heparin), and ceramic-based materials (bioglass). Collagen, heparin, and bioglass (BG) were successfully included in the models without modifying the fibrous structures offered by the polycaprolactone (PCL) scaffolds. Mesenchymal stromal cells (MSCs) were successfully seeded in all the biofunctional scaffolds and they showed an increase in alkaline phosphatase production when exposed to PCL/BG composites. This research demonstrates the feasibility of manufacturing smart and hierarchical artificial microenvironments for studying stem cell behavior and ultimately the potential of incorporating these artificial microenvironments into multifunctional membranes for bone tissue regeneration
Keywords
artificial microenvironment, bioglass, bone regeneration, ECM proteins, electrospun membrane
Subject
Suggested Citation
Abdelmoneim D, Alhamdani GM, Paterson TE, Santocildes Romero ME, Monteiro BJC, Hatton PV, Ortega Asencio I. Bioactive and Topographically-Modified Electrospun Membranes for the Creation of New Bone Regeneration Models. (2021). LAPSE:2021.0342
Author Affiliations
Abdelmoneim D: Bioengineering and Health Technologies Group, the School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK
Alhamdani GM: Bioengineering and Health Technologies Group, the School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK; School of Dentistry, University of Alkafeel, Najaf 54001, Iraq
Paterson TE: Bioengineering and Health Technologies Group, the School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK; Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield S1 3JD, UK
Santocildes Romero ME: Bioengineering and Health Technologies Group, the School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK
Monteiro BJC: Bioengineering and Health Technologies Group, the School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK
Hatton PV: Bioengineering and Health Technologies Group, the School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK [ORCID]
Ortega Asencio I: Bioengineering and Health Technologies Group, the School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK
Journal Name
Processes
Volume
8
Issue
11
Article Number
E1341
Year
2020
Publication Date
2020-10-23
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8111341, Publication Type: Journal Article
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LAPSE:2021.0342
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doi:10.3390/pr8111341
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May 4, 2021
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CC BY 4.0
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May 4, 2021
 
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Original Submitter
Calvin Tsay
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