Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Fibrin-Based Hydrogels with Reactive Amphiphilic Copolymers for Mechanical Adjustments Allow for Capillary Formation in 2D and 3D Environments

Svenja Wein
* ORCID logo ,
Carina Schemmer
,
Miriam Aischa Al Enezy-Ulbrich
,
Shannon Anna Jung
,
Stephan Rütten
,
Mark Kühnel
,
Danny David Jonigk
,
Wilhelm Jahnen-Dechent
,
Andrij Pich
ORCID logo ,
Sabine Neuss
Version 1 : Received: 16 February 2024 / Approved: 18 February 2024 / Online: 19 February 2024 (11:48:48 CET)

A peer-reviewed article of this Preprint also exists.

Wein, S.; Schemmer, C.; Al Enezy-Ulbrich, M.A.; Jung, S.A.; Rütten, S.; Kühnel, M.; Jonigk, D.; Jahnen-Dechent, W.; Pich, A.; Neuss, S. Fibrin-Based Hydrogels with Reactive Amphiphilic Copolymers for Mechanical Adjustments Allow for Capillary Formation in 2D and 3D Environments. Gels 2024, 10, 182. Wein, S.; Schemmer, C.; Al Enezy-Ulbrich, M.A.; Jung, S.A.; Rütten, S.; Kühnel, M.; Jonigk, D.; Jahnen-Dechent, W.; Pich, A.; Neuss, S. Fibrin-Based Hydrogels with Reactive Amphiphilic Copolymers for Mechanical Adjustments Allow for Capillary Formation in 2D and 3D Environments. Gels 2024, 10, 182.

Abstract

This study focuses on enhancing controllable fibrin-based hydrogels for tissue engineering, addressing existing weaknesses. By integrating a novel copolymer, we improve the foundation for cell-based angiogenesis with adaptable structural features. Tissue engineering often faces challenges like waste disposal and nutrient supply beyond the 200 µm diffusion limit. Angiogenesis breaks through this limitation, allowing the construction of larger constructs. Our innovative scaffold combination significantly boosts angiogenesis, resulting in longer branches and more capillary network junctions. The copolymer attached to fibrin fibers enables precise adjustment of hydrogel mechanical-dynamic properties for specific applications. Our material proves effective for angiogenesis, even under suppression factors like suramin. In our study, we prepared fibrin-based hydrogels with and without the copolymer PVP12400-co-GMA10mol%. Using a co-culture system of human umbilical vein endothelial cells (HUVEC) and mesenchymal stem cells (MSC), we analyzed angiogenetic behavior on and within the modified hydrogels. Capillary-like structures were reproducibly formed on different surfaces, demonstrating the general feasibility of three-dimensional endothelial cell networks in fibrin-based hydrogels. This highlights the biomaterial's suitability for in vitro pre-vascularization of biohybrid implants.

Keywords

Fibrin-based hydrogels; Cell-based angiogenesis; Copolymer integration; In vitro pre-vascularization; Biohybrid constructs

Subject

Chemistry and Materials Science, Biomaterials

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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