Anti-inflammatory effects of ethanol extract from Kummerowia striata (Thunb.) Schindl on lps-stimulated RAW 264.7 cell.

Inflammation
Jun-Yan TaoGuo-Hua Zheng

Abstract

Kummerowia striata (Thunb.) Schindl has long been used as a fork herb in inflammation-related therapy. This study was undertaken to determine the anti-inflammatory effect of the plant. High performance liquid chromatography (HPLC) was used for evaluating the extract. While dexamethasone (DM) was used as a positive control, the effects of ethanol extract on the production of IL-1beta, IL-6, NO, COX-2 and TNF-alpha, the expression of iNOS mRNA, TNF-alpha mRNA, COX-2 mRNA, protein production of COX-2 and HO-1, NF-kappaB and I-kappaB of LPS-stimulated RAW 264.7 cells were studied by sandwich ELISA, real-time PCR, Western blot analysis and immunocytochemistry assay respectively. The results showed that K. striata (Thunb.) Schindl had a good anti-inflammatory effect on LPS-stimulated RAW264.7 cell. On one hand, it could significantly inhibit the production of IL-1beta, IL-6, NO, TNF-alpha, COX-2 in LPS-stimulated cell than that of single LPS stimulated cell (p < 0.01 or p < 0.05). On the other hand, it could increase the production of IL-10 and HO-1 than that of single LPS intervention cell (p < 0.01 or p < 0.05). Furthermore, the extract also could inhibit the production of NF-kappaB and I-kappaB compared to single LPS stimulated ce...Continue Reading

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