Abstract
Scaffolds capable of mediating overlapping multi-cellular activities to support the different phases of wound healing while preventing scarring are essential for tissue regeneration. The potential of polysucrose as hydrogels and electrospun mats for wound healing was evaluated in vitro by seeding fibroblasts, endothelial cells and macrophages either singly or in combination. It was found that the scaffold architecture impacted cell behaviour. Electrospun mats promoted fibroblasts flattened morphology while polysucrose methacrylate (PSucMA) hydrogels promoted fibroblast spheroids formation, accentuated in the presence of endothelial cells. Hydrogels exhibited lower inflammatory response than mats and curcumin loaded scaffolds reduced TNF-α production. In vivo biocompatibility of the hydrogels tested on Wistar rats was superior to electrospun mats. In vivo wound healing studies indicated that PSucMA hydrogels integrated the surrounding tissue with better cellular infiltration and proliferation throughout the entire wound region. PSucMA hydrogels led to scarless wound closure comparable with commercially available gels.
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