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  • Title: Sericin-chitosan-glycosaminoglycans hydrogels incorporated with growth factors for in vitro and in vivo skin repair.
    Author: Sapru S, Das S, Mandal M, Ghosh AK, Kundu SC.
    Journal: Carbohydr Polym; 2021 Apr 15; 258():117717. PubMed ID: 33593579.
    Abstract:
    Globally, skin repair costs billion dollars per annum. Diversified matrices are fabricated to address this important area of healthcare. Most common limitations associated with them are the inflated production cost and insufficient functional repair. Our work explores the fabrication and potential utilization of Antheraea mylitta silk protein sericin (possessing inherent anti-bacterial and antioxidant properties) based hydrogels for skin tissue. The integrity of the hydrogels is achieved by combining sericin, chitosan (provide anti-bacterial and structural support), and glycosaminoglycans (component of biologically formed extracellular matrix). The hydrogels are functionalized by incorporation of vascular endothelial growth factor and transforming growth factor-β. They exhibit enhanced cellular functions in terms of their growth, production of matrix metalloproteinase, and collagen along with the recovery of impairment and the reconstruction of the lost dermal tissue. The in vivo biocompatibility analyses reveal that sericin-containing hydrogels promote the repair of skin tissue, angiogenesis, and illicit minimal immune response. These unique hydrogels mimicking the naturally occurring skin tissue and imparting additional beneficial features provide an appropriate physical environment and biological cues for the promotion of skin tissue repair.
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