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Cytotoxicity of LL-37 and temporins to human primary keratinocytes. Cell proliferation kit II (XTT) assays were performed to assess human primary keratinocytes viability after 24 h of treatment with LL-37 (A), temporin-Tb (Tb) (B), SHa (C) and [K3]SHa (D). Data are represented as mean + standard error of mean (SEM) of at least four independent experiments. *p < 0.05 and **p < 0.01 compared with the untreated control.
