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The pro-angiogenic role of hypoxia inducible factor stabilizer FG-4592 and its application in an in vivo tissue engineering chamber model. Sci Rep 2019; 9:6035. [PMID: 30988335 PMCID: PMC6465281 DOI: 10.1038/s41598-019-41924-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 03/13/2019] [Indexed: 02/06/2023] Open
Abstract
Tissue engineering is a promising technology used as an alternative to organ/tissue transplantation which is often limited by donor shortage. The construction of large-sized engineered tissue requires a fast and sufficient vascularization process. Previous studies have shown that hypoxia-inducible factor (HIF) -1α may promote the vascularization process implying that stabilized HIF-1α can be applied in the engineering of large-sized tissue. However, the toxicity and off-target effect of previously reported HIF-1α stabilizers limit their clinical application. FG-4592, a small molecule specific HIF stabilizer, was previously investigated as an anti-anemia drug in a phase-III clinical trial. Here we found that FG-4592 promoted tube formation in an in vitro model of angiogenesis by stabilizing HIF-1α and activating vascular endothelial growth factor (VEGF). When FG-4592 immobilized fibrin gel scaffold was implanted into a subcutaneous tissue engineering chamber, the vascularization process was significantly enhanced through the similar mechanisms which was verified in vitro. We conclude that FG-4592 may serve as a pro-angiogenic molecule for the construction of large-sized engineered tissue where intensive angiogenesis is required.
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Yuan Q, Arkudas A, Horch RE, Hammon M, Bleiziffer O, Uder M, Seuss H. Vascularization of the Arteriovenous Loop in a Rat Isolation Chamber Model—Quantification of Hypoxia and Evaluation of Its Effects. Tissue Eng Part A 2018; 24:719-728. [DOI: 10.1089/ten.tea.2017.0262] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Quan Yuan
- Department of Plastic and Hand Surgery, Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital Erlangen, Friedrich Alexander University, Erlangen-Nuernberg (FAU), Erlangen, Germany
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Andreas Arkudas
- Department of Plastic and Hand Surgery, Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital Erlangen, Friedrich Alexander University, Erlangen-Nuernberg (FAU), Erlangen, Germany
| | - Raymund E. Horch
- Department of Plastic and Hand Surgery, Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital Erlangen, Friedrich Alexander University, Erlangen-Nuernberg (FAU), Erlangen, Germany
| | - Matthias Hammon
- Department of Radiology, University Hospital Erlangen, Friedrich Alexander University, Erlangen-Nuernberg (FAU), Erlangen, Germany
| | - Oliver Bleiziffer
- Department of Plastic and Hand Surgery, Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital Erlangen, Friedrich Alexander University, Erlangen-Nuernberg (FAU), Erlangen, Germany
- Department of Plastic and Hand Surgery, Inselspital Bern, Universität Bern, Bern, Switzerland
| | - Michael Uder
- Department of Radiology, University Hospital Erlangen, Friedrich Alexander University, Erlangen-Nuernberg (FAU), Erlangen, Germany
| | - Hannes Seuss
- Department of Radiology, University Hospital Erlangen, Friedrich Alexander University, Erlangen-Nuernberg (FAU), Erlangen, Germany
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