Protective Effect of Processed Panax ginseng, Sun Ginseng on UVB-irradiated Human Skin Keratinocyte and Human Dermal Fibroblast

作者：Lee Hyejin; Lee Joo Yeop; Song Kyu Choon; Kim Jinhee; Park Jeong Hill; Chun Kwang Hoon^*; Hwang Gwi Seo

来源：Journal of Ginseng Research, 2012, 36(1): 68-77.

DOI：10.5142/jgr.2012.36.1.68

• Panax ginseng
• Sun ginseng (SG)
• Ultraviolet radiation
• Keratinocytes
• Matrix metalloprotease-1

In this study, we investigated the protective effects of processed Panax ginseng, sun ginseng (SG) against the UVB-irradiation on epidermal keratinocytes and dermal fibroblasts. Pretreatment of SG in HaCaT keratinocytes and human dermal fibroblasts reduced UVB-induced cell damage as seen by reduced lactate dehydrogenase release. We also found that SG restored the UVB-induced decrease in anti-apoptotic gene expression (bcl-2 and bel-xL) in these cells, indicating that SG has an anti-apoptotic effect and thus can protect cells from cell death caused by strong UVB radiation. In addition, SG inhibited the excessive expression of c-jun and c-fos gene by the UVB in HeCaT cells and human dermal fibroblasts. We also demonstrated that SG may exert an anti-inflammatory activity by reducing the nitric oxide production and inducible nitric oxide synthase mRNA synthesis in HaCaT keratinocytes and human dermal fibroblasts. This was further supported by its inhibitory effects on the elevated cyclooxygenase-2 and tumor necrosis factor-a transcription which was induced by UVB-irradiation in HaCaT cells. In addition, SG may have anti-aging property in terms of induction of procollagen gene expression and inhibition of the matrix metalloprotease-1 gene expression caused by UVB-exposure. These findings suggest that SG can be a potential agent that may protect against the dermal cell damage caused by UVB.

• 出版日期2012-1