Cell-Biomaterial Interactions: Vol II

A special issue of Bioengineering (ISSN 2306-5354).

Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 7747

Special Issue Editors


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Guest Editor
Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, MS 39216, USA
Interests: synthesis and modification of polymeric biomaterials; tissue engineering; multi-component drug delivery systems; in vitro tissue and disease models
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Guest Editor
Department of Bioengineering, Colleges of Engineering and Medicine, University of Illinois at Chicago, Chicago, IL 60607, USA
Interests: tissue engineering; biomaterials; bioactive factor delivery; stem cells; regenerative medicine

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Guest Editor
Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA
Interests: biomaterials; tissue engineering; cardiovascular diseases; biomineralization; wound healing; additive manufacturing; point of care diagnostics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

The native extracellular matrix provides dynamic and spatially heterogeneous microstructural, mechanical, and compositional cues that can influence cell behavior. The ability to mimic such complex in vivo cell-microenvironmental interactions is essential to the success of an implant biomaterial. To direct and control cell behavior, surface modification methods have been developed for scaffolds where cell contact is expected primarily at the scaffold surface. As tissue engineering research has progressed with three-dimensional scaffolds, the ability to promote cellular in-growth and/or sustain the growth of cells already incorporated into the scaffold must be considered. New strategies will be required to address such challenges. Innovative approaches to engineer cell-biomaterial interactions may be utilized to regulate three-dimensional orientation and architecture of cells, control cell-cell contact and communication with microscale resolution, and direct cell behavior to achieve appropriate biological function. 

For this second volume of the Special Issue on “Cell-Biomaterial Interactions” (Vol I), we are inviting original research papers and comprehensive reviews on all innovative developments that provide fundamental insights about cell-biomaterial interactions including, but not limited to, the following topics:

  • Integration of microstructural, mechanical, and compositional cues for engineering complex tissue systems
  • Substrate guided stem cell behavior
  • Interactions of specific cell types with materials
  • Modification of three-dimensional biomaterial scaffolds by grafting and patterning of small molecules, polymers, and/or ligands
  • Characterization methods to ascertain a successfully modified three-dimensional scaffold and cellular interactions with such scaffolds
  • New developments in materials that are responsive to environmental cues (e.g., temperature, pH, mechanical or electrical stimuli, or cellular products)

Prof. Amol Janorkar
Prof. Dr. Eben Alsberg
Dr. Gulden Camci-Unal
Guest Editors

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Published Papers (2 papers)

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Research

14 pages, 2410 KiB  
Article
Characterization of Macrophage and Cytokine Interactions with Biomaterials Used in Negative-Pressure Wound Therapy
by Praveen Krishna Veerasubramanian, Victor C. Joe, Wendy F. Liu and Timothy L. Downing
Bioengineering 2022, 9(1), 2; https://doi.org/10.3390/bioengineering9010002 - 22 Dec 2021
Cited by 5 | Viewed by 3778
Abstract
Macrophages are innate immune cells that help wounds heal. Here, we study the potential immunomodulatory effects of negative-pressure wound therapy (NPWT) materials on the macrophage inflammatory response. We compared the effects of two materials, Granufoam™ (GF) and Veraflo Cleanse™ (VC), on macrophage function [...] Read more.
Macrophages are innate immune cells that help wounds heal. Here, we study the potential immunomodulatory effects of negative-pressure wound therapy (NPWT) materials on the macrophage inflammatory response. We compared the effects of two materials, Granufoam™ (GF) and Veraflo Cleanse™ (VC), on macrophage function in vitro. We find that both materials cause reduced expression of inflammatory genes, such as TNF and IL1B, in human macrophages stimulated with bacterial lipopolysaccharide (LPS) and interferon-gamma (IFNγ). Relative to adherent glass control surfaces, VC discourages macrophage adhesion and spreading, and may potentially sequester LPS/IFNγ and cytokines that the cells produce. GF, on the other hand, was less suppressive of inflammation, supported macrophage adhesion and spreading better than VC, and sequestered lesser quantities of LPS/IFNγ in comparison to VC. The control dressing material cotton gauze (CT) was also immunosuppressive, capable of TNF-α retention and LPS/IFNγ sequestration. Our findings suggest that NPWT material interactions with cells, as well as soluble factors including cytokines and LPS, can modulate the immune response, independent of vacuum application. We have also established methodological strategies for studying NPWT materials and reveal the potential utility of cell-based in vitro studies for elucidating biological effects of NPWT materials. Full article
(This article belongs to the Special Issue Cell-Biomaterial Interactions: Vol II)
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18 pages, 2585 KiB  
Communication
Composite Scaffolds from Gelatin and Bone Meal Powder for Tissue Engineering
by Darlin Lantigua, Xinchen Wu, Sanika Suvarnapathaki, Michelle A. Nguyen and Gulden Camci-Unal
Bioengineering 2021, 8(11), 169; https://doi.org/10.3390/bioengineering8110169 - 1 Nov 2021
Cited by 22 | Viewed by 2981
Abstract
Bone tissue engineering offers versatile solutions to broaden clinical options for treating skeletal injuries. However, the variety of robust bone implants and substitutes remains largely uninvestigated. The advancements in hydrogel scaffolds composed of natural polymeric materials and osteoinductive microparticles have shown to be [...] Read more.
Bone tissue engineering offers versatile solutions to broaden clinical options for treating skeletal injuries. However, the variety of robust bone implants and substitutes remains largely uninvestigated. The advancements in hydrogel scaffolds composed of natural polymeric materials and osteoinductive microparticles have shown to be promising solutions in this field. In this study, gelatin methacrylate (GelMA) hydrogels containing bone meal powder (BP) particles were investigated for their osteoinductive capacity. As natural source of the bone mineral, we expect that BP improves the scaffold’s ability to induce mineralization. We characterized the physical properties of GelMA hydrogels containing various BP concentrations (0, 0.5, 5, and 50 mg/mL). The in vitro cellular studies revealed enhanced mechanical performance and the potential to promote the differentiation of pre-osteoblast cells. The in vivo studies demonstrated both promising biocompatibility and biodegradation properties. Overall, the biological and physical properties of this biomaterial is tunable based on BP concentration in GelMA scaffolds. The findings of this study offer a new composite scaffold for bone tissue engineering. Full article
(This article belongs to the Special Issue Cell-Biomaterial Interactions: Vol II)
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