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Silk Fibroin as Adjuvant in the Fabrication of Mechanically Stable Fibrin Biocomposites

Fibrin is a very attractive material for the development of tissue-engineered scaffolds due to its exceptional bioactivity, versatility in the fabrication, affinity to cell mediators; and the possibility to isolate it from blood plasma, making it autologous. However, fibrin application is greatly li...

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Autores principales: El Maachi, Ikram, Kyriakou, Stavroula, Rütten, Stephan, Kopp, Alexander, Köpf, Marius, Jockenhoevel, Stefan, Fernández-Colino, Alicia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9183065/
https://www.ncbi.nlm.nih.gov/pubmed/35683920
http://dx.doi.org/10.3390/polym14112251
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author El Maachi, Ikram
Kyriakou, Stavroula
Rütten, Stephan
Kopp, Alexander
Köpf, Marius
Jockenhoevel, Stefan
Fernández-Colino, Alicia
author_facet El Maachi, Ikram
Kyriakou, Stavroula
Rütten, Stephan
Kopp, Alexander
Köpf, Marius
Jockenhoevel, Stefan
Fernández-Colino, Alicia
author_sort El Maachi, Ikram
collection PubMed
description Fibrin is a very attractive material for the development of tissue-engineered scaffolds due to its exceptional bioactivity, versatility in the fabrication, affinity to cell mediators; and the possibility to isolate it from blood plasma, making it autologous. However, fibrin application is greatly limited due to its low mechanical properties, fast degradation, and strong contraction in the presence of cells. In this study, we present a new strategy to overcome these drawbacks by combining it with another natural polymer: silk fibroin. Specifically, we fabricated biocomposites of fibrin (5 mg/mL) and silk fibroin (0.1, 0.5 and 1% w/w) by using a dual injection system, followed by ethanol annealing. The shear elastic modulus increased from 23 ± 5 Pa from fibrin alone, to 67 ± 22 Pa for fibrin/silk fibroin 0.1%, 241 ± 67 Pa for fibrin/silk fibroin 0.5% and 456 ± 32 Pa for fibrin/silk fibroin 1%. After culturing for 27 days with strong contractile cells (primary human arterial smooth muscle cells), fibrin/silk fibroin 0.5% and fibrin/silk fibroin 1% featured minimal cell-mediated contraction (ca. 15 and 5% respectively) in contrast with the large surface loss of the pure fibrin scaffolds (ca. 95%). Additionally, the composites enabled the formation of a proper endothelial cell layer after culturing with human primary endothelial cells under standard culture conditions. Overall, the fibrin/silk fibroin composites, manufactured within this study by a simple and scalable biofabrication approach, offer a promising avenue to boost the applicability of fibrin in tissue engineering.
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spelling pubmed-91830652022-06-10 Silk Fibroin as Adjuvant in the Fabrication of Mechanically Stable Fibrin Biocomposites El Maachi, Ikram Kyriakou, Stavroula Rütten, Stephan Kopp, Alexander Köpf, Marius Jockenhoevel, Stefan Fernández-Colino, Alicia Polymers (Basel) Article Fibrin is a very attractive material for the development of tissue-engineered scaffolds due to its exceptional bioactivity, versatility in the fabrication, affinity to cell mediators; and the possibility to isolate it from blood plasma, making it autologous. However, fibrin application is greatly limited due to its low mechanical properties, fast degradation, and strong contraction in the presence of cells. In this study, we present a new strategy to overcome these drawbacks by combining it with another natural polymer: silk fibroin. Specifically, we fabricated biocomposites of fibrin (5 mg/mL) and silk fibroin (0.1, 0.5 and 1% w/w) by using a dual injection system, followed by ethanol annealing. The shear elastic modulus increased from 23 ± 5 Pa from fibrin alone, to 67 ± 22 Pa for fibrin/silk fibroin 0.1%, 241 ± 67 Pa for fibrin/silk fibroin 0.5% and 456 ± 32 Pa for fibrin/silk fibroin 1%. After culturing for 27 days with strong contractile cells (primary human arterial smooth muscle cells), fibrin/silk fibroin 0.5% and fibrin/silk fibroin 1% featured minimal cell-mediated contraction (ca. 15 and 5% respectively) in contrast with the large surface loss of the pure fibrin scaffolds (ca. 95%). Additionally, the composites enabled the formation of a proper endothelial cell layer after culturing with human primary endothelial cells under standard culture conditions. Overall, the fibrin/silk fibroin composites, manufactured within this study by a simple and scalable biofabrication approach, offer a promising avenue to boost the applicability of fibrin in tissue engineering. MDPI 2022-05-31 /pmc/articles/PMC9183065/ /pubmed/35683920 http://dx.doi.org/10.3390/polym14112251 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
El Maachi, Ikram
Kyriakou, Stavroula
Rütten, Stephan
Kopp, Alexander
Köpf, Marius
Jockenhoevel, Stefan
Fernández-Colino, Alicia
Silk Fibroin as Adjuvant in the Fabrication of Mechanically Stable Fibrin Biocomposites
title Silk Fibroin as Adjuvant in the Fabrication of Mechanically Stable Fibrin Biocomposites
title_full Silk Fibroin as Adjuvant in the Fabrication of Mechanically Stable Fibrin Biocomposites
title_fullStr Silk Fibroin as Adjuvant in the Fabrication of Mechanically Stable Fibrin Biocomposites
title_full_unstemmed Silk Fibroin as Adjuvant in the Fabrication of Mechanically Stable Fibrin Biocomposites
title_short Silk Fibroin as Adjuvant in the Fabrication of Mechanically Stable Fibrin Biocomposites
title_sort silk fibroin as adjuvant in the fabrication of mechanically stable fibrin biocomposites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9183065/
https://www.ncbi.nlm.nih.gov/pubmed/35683920
http://dx.doi.org/10.3390/polym14112251
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