Premium
The use of heparin, bFGF, and VEGF 145 grafted acellular vascular scaffold in small diameter vascular graft
Author(s) -
Kong Xiaoying,
Kong Chen,
Wen Shunsheng,
Shi Jinsheng
Publication year - 2019
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.34160
Subject(s) - heparin , biocompatibility , transplantation , vascular endothelial growth factor , blood vessel , basic fibroblast growth factor , vascular graft , in vitro , immunohistochemistry , vegf receptors , medicine , biomedical engineering , pathology , materials science , surgery , growth factor , chemistry , biochemistry , receptor , metallurgy
We aim to test the application of heparin, bFGF, and VEGF 145 grafted acellular vascular scaffold in small diameter vascular graft. The amount of bFGF and VEGF 145 were determined by ELISA. Femoral artery transplantation was performed. Mechanical strength of acellular vascular scaffolds was determined. Angiography was performed for blood vessel patency. Factor VIII and α2‐actin expression was detected by immunohistochemistry. bFGF and VEGF 145 had stable release at 60 and 70 days in vitro , and the release rate of VEGF 145 was slightly slower than that of bFGF. After transplantation, 9 months of the vascular patency rate was 100% at 1, 3, and 9 months, and, was up to 90% at 18 months, while the patency rate in group with grafted heparin only at 1‐month was 60%, at 3‐month was 40%, at 9‐month was 15%, and at 18‐month was 10%. The blood vessels taken after 18 months had no significant difference in the mechanical properties between the transplanted and the natural vessels. Positive expression of factor VIII and α2‐actin was observed. The heparinized and bFGF and VEGF 145 grafted allogeneic vascular acellular scaffolds are preliminarily obtained, which show good biocompatibility and patency and are of great importance for small diameter vascular graft. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 00B: 000–000, 2018. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 672–679, 2019.