Abstract
Aim: Selenium nanoparticles (SeNPs) may have a potential role in treating dermal disorders due to its wide therapeutic properties, but there is a need to evaluate its toxicity in keratinocytes. The present study evaluated the molecular mechanism and mode of cell death induced by SeNPs on dermal keratinocytes. Materials & methods: SeNPs were synthesized, characterized and studied in human keratinocytes cells. Oxidative stress and mitochondrial membrane depolarization were evaluated by various techniques. Additionally, autophagy mediated apoptotic cell death was evaluated. Results: SeNPs induced oxidative stress and apoptotic cell death in keratinocytes by increasing autophagy through the formation of acidic lysosomes and autophagosomes. Conclusion: Overall, SeNPs induce the oxidative stress and autophagy mediated apoptotic cell death in human keratinocytes cells.
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