期刊
NPJ REGENERATIVE MEDICINE
卷 6, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41536-021-00158-8
关键词
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资金
- Else Kroner Fresenius Stiftung EKFS
- Staedtler Foundation
- Dr. Fritz Erler-Fonds
- Office for Gender and Diversity
- Forschungsstiftung Medizin
- Interdisciplinary Center for Clinical Research (IZKF) of the University Hospital of Erlangen
- Friedrich-Alexander University of Erlangen-Nurnberg (FAU), Erlangen, Germany
- Baxter Innovations GmbH, Vienna, Austria
- Novartis AG, Basel
- Xue Hong and Hans Georg Geis Foundation
- TapMed Medizintechnik, Habichtswald-Ehlen, Germany
The study shows that prevascularized transplantation of bone substitute combined with stem cells into critical-size bone defects in a sheep model is a feasible and simple alternative therapy. This research demonstrates the potential of tissue engineering principles in generating transplantable, vascularized, and customizable large-scale bone tissue in living organisms.
Tissue engineering principles allow the generation of functional tissues for biomedical applications. Reconstruction of large-scale bone defects with tissue-engineered bone has still not entered the clinical routine. In the present study, a bone substitute in combination with mesenchymal stem cells (MSC) and endothelial progenitor cells (EPC) with or without growth factors BMP-2 and VEGF-A was prevascularized by an arteriovenous (AV) loop and transplanted into a critical-size tibia defect in the sheep model. With 3D imaging and immunohistochemistry, we could show that this approach is a feasible and simple alternative to the current clinical therapeutic option. This study serves as proof of concept for using large-scale transplantable, vascularized, and customizable bone, generated in a living organism for the reconstruction of load-bearing bone defects, individually tailored to the patient's needs. With this approach in personalized medicine for the reconstruction of critical-size bone defects, regeneration of parts of the human body will become possible in the near future.
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