In vitrowound healing and cytotoxic effects of sinigrin–phytosome complex

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Graphical abstractSinigrin is a class of glucosinolates found naturally in plants of the Brassicaceae family. Lately, studies have shown that sinigrin possesses anticancer, antibacterial and anti-inflammatory activities. Since its efficacy has not been explored on wound healing, we examined the effect of sinigrin on HaCaT cells. We also aimed at formulating sinigrin into phytosome to form a sinigrin–phytosome complex and study the wound healing and cytotoxic activities on A-375 and HaCaT cells. Sinigrin was efficiently formulated into the phytosome with an average particle size of 153 ± 39 nm, zeta potential of 10.09 ± 0.98 mV and complex efficiency of 69.5 ± 5%. The formation of the sinigrin–phytosome complex was confirmed by DSC and FTIR analysis. The sinigrin–phytosome complex significantly exhibited wound healing effects when compared to sinigrin alone. After 42 h, the phytosome complex completely healed the wound, whereas sinigrin alone showed only 71% wound closure. The sinigrin–phytosome complex displayed minimal toxicity towards HaCaT cells and at higher concentrations, it showed potent activity towards A-375. The results indicated that sinigrin–phytosome complex augmented the therapeutic potential of sinigrin towards the wound healing activity and this approach should be explored further for cancerous wound treatment.

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