Publication date: April 2017
Source:International Journal of Biological Macromolecules, Volume 97
Author(s): Narguess H. Marei, W. El-Mazny, Aida El-Shaer, Kareem Dorri Zaki, Zahra S. Hussein, Emtithal M. Abd-El-Samie
Chitosan (CS) has received great attention in tissue engineering, especially in wound healing acceleration. In this study, chitin was isolated from desert locust (Schistocerca gregaria) and shrimp (Penaeus monodon) then deacetylated to chitosan. Then, chitosan was characterized by degree of deacetylation (DD), molecular weight (M.Wt), swelling index (SI), Fourier transform infrared (FTIR) and X ray diffraction (XRD). The chitosan was then casted into 2D scaffolds and was pictured using scanning electron microscope (SEM). In a comparative study, primary cell cultures of neonatal (1–2day old) mice skin tissue, supplemented with 10% fetal calf serum, were seeded onto locust chitosan based scaffolds (LCSBS) and shrimp chitosan based scaffold (SCSBS). Their attachment percentage was determined after 1h. The cell proliferation rate was tested for 5days on LCSBS and SCSBS. Wound healing activity progress of LCSBS and SCSBS was tested in vivo using histopathology, and results revealed that seeded and unseeded LCSBS accelerated healing in contrast to SCSBS. The data demonstrated that LCSBS shows a high degree of biocompatibility in vivo. These results suggest that LCSBS is a potential substitute for the development of low cost implantable materials to accelerate wound healing.
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