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Dynamic mechanical conditioning is being researched as a method to improve mechanical properties of tissue engineered blood vessels. This method attempts to induce unique reaction in implanted cells that regenerate the matrix around them, thereby improving the overall mechanical stability of the grafts. In this study, we used a bioreactor to seed endothelial cells and smooth muscle cells into the inner and outer layers of the electrospun spider silk protein scaffold respectively to construct vascular grafts. The cell proliferation, mechanical properties, blood compatibility and other indicators of the vascular grafts were characterized in vitro. Furthermore, the vascular grafts were implanted in Sprague Dawley rats, and the vascular grafts' patency, extracellular matrix formation, and inflammatory response were evaluated in vivo. We aimed to construct spider silk protein vascular grafts with the potential for in vivo implantation by using a pulsating flow bioreactor. The results showed that, when compared with the static culture condition, the dynamic culture condition improved cell proliferation on vascular scaffolds and enhanced mechanical function of vascular scaffolds. In vivo experiments also showed that the dynamic culture of vascular grafts was more beneficial for the extracellular matrix deposition and anti\u2010thrombogenesis, as well as reducing the inflammatory response of vascular grafts. In conclusion, dynamic mechanical conditioning aid in the resolution of challenges impeding the application of electrospun scaffolds and have the potential to construct small\u2010caliber blood vessels with regenerative function for cardiovascular tissue repair.<\/jats:p>","DOI":"10.1002\/jbm.a.37447","type":"journal-article","created":{"date-parts":[[2022,9,21]],"date-time":"2022-09-21T12:04:45Z","timestamp":1663761885000},"page":"71-87","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Construction of spider silk protein small\u2010caliber tissue engineering vascular grafts based on dynamic culture and its performance evaluation"],"prefix":"10.1002","volume":"111","author":[{"given":"Lulu","family":"Sun","sequence":"first","affiliation":[{"name":"College of Life Science and Technology, First Affiliated Hospital Xinxiang Medical University  Xinxiang 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