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Preparation of Decellularized Kidney Scaffolds in Rats
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Constructing heparin-modified pancreatic decellularized scaffold to improve its re-endothelialization.
Liancheng Xu1,2, Yibing Guo1, Yan Huang1,2
11 Research center of clinical medical, Affiliated Hospital of Nantong University, Nantong City, Jiangsu, PR China.
Journal of Biomaterials Applications
|January 18, 2018
Summary
Heparin modification of pancreatic scaffolds enhances vascularization for diabetes treatment. This endothelialized scaffold promotes blood vessel formation, improving potential for pancreas tissue engineering and transplantation.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Vascular Biology
Background:
- Pancreas transplantation offers a potential cure for diabetes but is limited by donor organ availability.
- Vascularization of engineered pancreas tissue is a major hurdle for successful transplantation.
- Enhancing angiogenic properties of decellularized scaffolds is crucial for tissue engineering.
Purpose of the Study:
- To develop an endothelialized pancreatic decellularized scaffold with improved vascularization properties.
- To investigate the efficacy of heparin modification for promoting endothelialization and angiogenesis.
- To evaluate the potential of the modified scaffold for pancreas tissue engineering.
Main Methods:
- Heparin modification of pancreatic decellularized scaffolds using EDC/NHS chemistry.
- Characterization of scaffold morphology, ultra-structure, and porosity.
- In vitro assessment of human umbilical vein endothelial cell adhesion, proliferation, and angiogenesis.
- In vivo transplantation studies to evaluate cell localization and neovascularization.
Main Results:
- Heparin modification successfully created an endothelialized pancreatic scaffold.
- The heparinized scaffold demonstrated enhanced adhesion, proliferation, and angiogenesis of endothelial cells in vitro.
- In vivo studies showed significantly improved endothelial cell integration and new blood vessel formation compared to unmodified scaffolds (p<0.05).
Conclusions:
- Endothelialized heparin-pancreatic decellularized scaffolds show promise for improving vascular supply in pancreas tissue engineering.
- This approach may overcome limitations in blood supply for transplanted pancreatic tissue.
- The modified scaffold is a potential candidate for advancing pancreas tissue engineering and diabetes therapy.
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