|
KMID : 0363020050350010009
|
|
Journal of Korean Academy of Periodontology
2005 Volume.35 No. 1 p.9 ~ p.19
|
|
|
Suppression of nitric oxide and interleukin-6 production by methanol extract of Sophorae Flos in macrophage cells
|
|
이지은
이주연/최점일/김종관/김성조
|
|
|
Abstract
|
|
|
|
Both nitric oxide (NO) and interleukin-6 (IL-6) have been thought to have a role in the pathogenesis of inflammatory periodontal disease as it does in other inflammatory diseases, and the inhibitors of NO and IL-6 production have been considered as potential anti-inflammatory agents. In this study, we evaluated methanol extract of Sophorae Flos for inhibition of NO and IL-6 production in Prevotella intermedia LPS-induced mouse macrophages RAW264.7 cells. Dried Sophorae Flos was sliced, and extracted with 100% methanol. LPS from P. intermedia ATCC 25611 was prepared by the standard hot phenol-water method. NO production was assayed by measuring the accumulation of nitrite in culture supernatants and IL-6 was measured using mouse IL-6 ELISA kit. Western blot analysis of iNOS and analysis of reverse transcription (RT)-PCR products were carried out. The methanol extract of Sophorae Flos concentration-dependently reduced the production of NO and the expression of iNOS protein and mRNA in RAW264.7 cells treated with P. intermedia LPS. Sophorae Flos also suppressed IL-6 production and the expression of IL-6 mRNA in RAW264.7 cells stimulated by P. intermedia LPS. The inhibition of NO and IL-6 production by Sophorae Flos may be useful in the therapy of inflammatory diseases such as periodontitis. This hypothesis, however, remains to be tested.
|
|
|
KEYWORD
|
|
|
Sophorae Flos, Prevotella intermedia LPS, RAW264.7 cells, nitric oxide, interleukin-6
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|