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  • Title: In vitro evaluation of combined sulfated silk fibroin scaffolds for vascular cell growth.
    Author: Liu H, Ding X, Bi Y, Gong X, Li X, Zhou G, Fan Y.
    Journal: Macromol Biosci; 2013 Jun; 13(6):755-66. PubMed ID: 23610045.
    Abstract:
    A combined sulfated silk fibroin scaffold is fabricated by modifying a knitted silk scaffold with sulfated silk fibroin sponges. In vitro hemocompatibility evaluation reveals that the combined sulfated silk fibroin scaffolds reduce platelet adhesion and activation, and prolong the activated partial thromboplastin time (APTT), thrombin time (TT), and prothrombin time (PT). The response of porcine endothelial cells (ECs) and smooth muscle cells (SMCs) on the scaffolds is studied to evaluate the cytocompatibility of the scaffolds. Vascular cells are seeded on the scaffolds and cultured for 2 weeks. The scaffolds demonstrate enhanced EC adhesion, proliferation, and maintenance of cellular functions. Moreover, the scaffolds inhibit SMC proliferation and induce expression of contractile SMC marker genes.
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