Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 193, Issue -, Pages 638-646Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2021.10.128
Keywords
Decellularized liver extracellular matrix; Chitosan; Gelatin; Spongy scaffold; Liver trauma
Funding
- Basic Science Research Program through the National Research Foundation (NRF) - Ministry of Education, Republic of Korea [2015R1A6A1A03032522]
- Soonchunhyang University, South Korea
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The combination of chitosan/gelatin (CG) enriched with decellularized liver extracellular matrix powder (dLECM) was optimized to enhance wound healing and reduce postoperative complications. The CG-E4 sponge scaffold showed fast post-operative recovery, higher blood absorption, and faster clotting time, demonstrating its potential as a hemostatic material in surgeries.
Individually, Chitosan (C) and Gelatin (G) are increasingly being used for the simulation and testing of surgical procedures. In the present study, at combination of chitosan/gelatin (CG) was optimized and later enriched by the loading decellularized liver extracellular matrix powder (dLECM) prepared from porcine liver, we hypothesized CG-dLECM combination would enhance wound healing and reduce postoperative complications after liver surgery. Varying concentration of dLECM (1, 4, and 8 mg/ml) were loaded into CG, and evaluation was done to get the optimized composition. Preliminary analysis on the microstructure, in-vitro degradation, and blood clot kinetics and in-vitro cytocompatibility showed that the CG with 4 mg/ml dLECM (CG-E4) was the most suitable composition for further consideration. The prepared CG-E4 spongy scaffold enhances fast post-operative recovery with a higher blood absorption and fast clotting time (similar to 50 s). In addition, CG-E4 spongy scaffold implanted at rat liver wound showed desired biocompatibility as evidenced by reduced wound size, earlier bioabsorption and accelerated liver regeneration. In the present study, we demonstrated that, CG with dLECM spongy scaffold as a potential hemostatic material in the prevention of excessive hemorrhage during surgeries.
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