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KMID : 1123920110250061014
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Korean Journal of Oriental Physiology and Pathology
2011 Volume.25 No. 6 p.1014 ~ p.1019
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Effects of Curcumin on UVB-irradiated Inflammation in HaCaT Keratinocyte Cells
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Lee Ju-Yeon
Lee Eun-Ju
Lee Young-Sun
Yoo Wang-Keun
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Abstract
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Curcumin is a natural phytochemical present in turmeric, the ground powder of the rhizomes of Curcuma longa. Curcumin has been described as having antioxidant, anti-inflammatory, and anti-carcinogenic properties. However, it is still largely unknown whether curcumin inhibits the UVB-induced inflammatory reaction in HaCaT keratinocyte cell lines. In this study, to confirm the photoprotection properties of curcumin, HaCaT keratinocyte cells were irradiated by UVB, and then treated with curcumin. UVB irradiation induced the increased expressions of IL-, TNF-, IL-6, IL-8, and COX-2 in HaCaT cells. These increased expressions of cytokines (IL-, TNF-, IL-6, IL-8, and COX-2) were down-regulated by curcumin treatment in UVB-irradiated HaCaT cells. In addition skin of hairless mice were damaged by UVB irradiation, which were evidenced by atrophy of epidermis and decrease of collagen in dermis. However, these damages were protected partially by co-treatment of curcumin. Taken together, this data indicate that curcumin may be a promising photoprotection agent, when used in massage pack or sunscreen product, to reduce cell death in UV-damaged skin.
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KEYWORD
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curcumin, photoprotection, HaCaT cells, cytokine
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