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Exp Dermatol ; 33(5): e15098, 2024 May.
Article in English | MEDLINE | ID: mdl-38770557

ABSTRACT

Healing of complex wounds requires dressings that must, at least, not hinder and should ideally promote the activity of key healing cells, in particular fibroblasts. This in vitro study assessed the effects of three wound-dressings (a pure Ca2+ alginate: Algostéril®, a Ca2+ alginate + carboxymethylcellulose: Biatain alginate® and a polyacrylate impregnated with lipido-colloid matrix: UrgoClean®) on dermal fibroblast activity. The results showed the pure calcium alginate to be non-cytotoxic, whereas the other wound-dressings showed moderate to strong cytotoxicity. The two alginates stimulated fibroblast migration and proliferation, whereas the polyacrylate altered migration and had no effect on proliferation. The pure Ca2+ alginate significantly increased the TGF-ß-induced fibroblast activation, which is essential to healing. This activation was confirmed by a significant increase in Vascular endothelial growth factor (VEGF) secretion and a higher collagen production. The other dressings reduced these fibroblast activities. The pure Ca2+ alginate was also able to counteract the inhibitory effect of NK cell supernatants on fibroblast migration. These in vitro results demonstrate that tested wound-dressings are not equivalent for fibroblast activation. Only Algostéril was found to promote all the fibroblast activities tested, which could contribute to its healing efficacy demonstrated in the clinic.


Subject(s)
Alginates , Cell Movement , Cell Proliferation , Fibroblasts , Vascular Endothelial Growth Factor A , Wound Healing , Fibroblasts/drug effects , Wound Healing/drug effects , Humans , Alginates/pharmacology , Cell Movement/drug effects , Cell Proliferation/drug effects , Vascular Endothelial Growth Factor A/metabolism , Collagen/metabolism , Bandages , Transforming Growth Factor beta/metabolism , Carboxymethylcellulose Sodium , Cells, Cultured , Killer Cells, Natural/drug effects , Acrylic Resins , Hexuronic Acids , Glucuronic Acid , Skin
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