Perfusable Tissue Bioprinted into a 3D-Printed Tailored Bioreactor System
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Published:2024-01-09
Issue:1
Volume:11
Page:68
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ISSN:2306-5354
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Container-title:Bioengineering
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language:en
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Short-container-title:Bioengineering
Author:
Gensler Marius1, Malkmus Christoph2ORCID, Ockermann Philipp1, Möllmann Marc3, Hahn Lukas4, Salehi Sahar5ORCID, Luxenhofer Robert4ORCID, Boccaccini Aldo6ORCID, Hansmann Jan23
Affiliation:
1. Department Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg, 97070 Wuerzburg, Germany 2. Institute of Medical Engineering Schweinfurt, Technical University of Applied Sciences Wuerzburg-Schweinfurt, 97421 Schweinfurt, Germany 3. Translational Center for Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research (ISC), 97082 Würzburg, Germany 4. Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy, Julius-Maximilians-University Wuerzburg, 97070 Würzburg, Germany 5. Department of Biomaterials, Faculty of Engineering Science, University of Bayreuth, 95447 Bayreuth, Germany 6. Institute of Biomaterials, University of Erlangen-Nürnberg, 91058 Erlangen, Germany
Abstract
Bioprinting provides a powerful tool for regenerative medicine, as it allows tissue construction with a patient’s specific geometry. However, tissue culture and maturation, commonly supported by dynamic bioreactors, are needed. We designed a workflow that creates an implant-specific bioreactor system, which is easily producible and customizable and supports cell cultivation and tissue maturation. First, a bioreactor was designed and different tissue geometries were simulated regarding shear stress and nutrient distribution to match cell culture requirements. These tissues were then directly bioprinted into the 3D-printed bioreactor. To prove the ability of cell maintenance, C2C12 cells in two bioinks were printed into the system and successfully cultured for two weeks. Next, human mesenchymal stem cells (hMSCs) were successfully differentiated toward an adipocyte lineage. As the last step of the presented strategy, we developed a prototype of an automated mobile docking station for the bioreactor. Overall, we present an open-source bioreactor system that is adaptable to a wound-specific geometry and allows cell culture and differentiation. This interdisciplinary roadmap is intended to close the gap between the lab and clinic and to integrate novel 3D-printing technologies for regenerative medicine.
Funder
Deutsche Forschungsgemeinschaft Research Council of Norway
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