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  • Title: Silk fibroin/collagen/hyaluronic acid scaffold incorporating pilose antler polypeptides microspheres for cartilage tissue engineering.
    Author: Wang J, Sun X, Zhang Z, Wang Y, Huang C, Yang C, Liu L, Zhang Q.
    Journal: Mater Sci Eng C Mater Biol Appl; 2019 Jan 01; 94():35-44. PubMed ID: 30423717.
    Abstract:
    A silk fibroin/collagen/hyaluronic acid (SF/COL/HA) composite scaffold was prepared via admixing, crosslinking, and lyophilizing processes. We studied its physicochemical and biological properties, such as water absorption, porosity, weight loss, and biocompatibility. The optimal ratio of SF/COL/HA scaffold was 3:6.5:0.5. Then, the optimal ratio of scaffold incorporating pilose antler polypeptides (PAPs)-PLGA microspheres was prepared, and their compatibility was studied. PAP-SF/COL/HA scaffold had favorable adhesion and proliferation. A rabbit cartilage defect model was established. The repair effect of cartilage defects was observed and evaluated among PAP-SF/COL/HA, SF/COL/HA, and sham operation groups. The defects were almost completely repaired after 13 weeks in the PAP-SF/COL/HA group, thereby indicating that the PAP-SF/COL/HA composite had a favorable effect on articular cartilage repair.
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