[Effects of (-)-epigallocatechin-3-gallate on interleukin-1beta expression in mouse wound healing]

(-)-Epigallocatechin-3-gallate (EGCG), a main constituent of green tea polyphenols, plays important roles in antioxidative, anti-senescence, anti-tumor, anti-inflammation and bacterail action. In this study, effects of EGCG on the expression of IL-1beta gene and the IL-1beta level at wound sites during cutaneous wound healing were investigated with histological stain, ELISA and RT-PCR technique. The results show that EGCG (50 mg/L) inhibited the expression of IL-1beta gene and reduced the IL-beta level at wound sites at 72 h after cutaneous wound, but not change the expression of IL-1beta gene and the IL-1beta level at early stage (< or =24 h).