Long-term and extensive exposure to UV irradiation can cause sunburn, photoaging, or skin cancer. Various studies have shown that Dendrobium officinale extract has a certain protective effect on skin-related diseases. Lactobacillus plantarum is a probiotic that has been reported to be used for co-fermentation with various plants to enhance the activity of extracts. This article discusses the effectiveness of fermentation of Dendrobium officinale extract with Lactobacillus plantarum GT-17F on protection against UV-mediated photoaging. The study found that fermented extract of Dendrobium officinale (FDO) has a stronger antioxidant effect, especially in free radical scavenging. Pretreatment with FDO enables human skin fibroblast (HSF) cells and reconstruction skin models (EpiSkin and T-Skin) to resist UV-mediated degradation of type I collagen and type III collagen, repair epidermal barrier function, and reduce the damage of barrier-related proteins, such as filaggrin (FLG) and loricrin (LOR). Those findings provide a basis for further studies to evaluate the effectiveness of fermented Dendrobium officinale in preventing UV-mediated damage and photoaging in humans.
Keywords: Lactobacillus plantarum; fermented Dendrobium officinale; human skin fibroblast (HSF) cell; photoaging; reconstruction skin model.