Anti-Inflammatory Effect of Auraptene Extracted from Trifoliate Orange ( Poncirus Trifoliate) on LPS-Stimulated RAW 264.7 Cells.

Autor: Yan, Huiqing, Ma, Zhaocheng, Peng, Shu'ang, Deng, Xiuxin
Předmět:
Zdroj: Inflammation; Dec2013, Vol. 36 Issue 6, p1525-1532, 8p
Abstrakt: Poncirus trifoliate is a traditional Chinese medicinal plant used for treating inflammation-related diseases for a long time and trifoliate orange contains abundant auraptene. The present study was to evaluate auraptene as a potential anti-inflammatory agent and investigate the mechanism of auraptene against prostaglandins E (PGE) and cyclooxygenase-2 (COX-2) on lipopolysaccharide (LPS)-stimulated RAW 264.7 cells by comparing it with aspirin as a positive control group. The methods of enzyme-linked immunosorbent assay, reverse transcriptive polymerase chain reaction, real-time PCR, and western-blotting were used in the study. The results showed that auraptene exhibited better biocompatibility and lower cytotoxicity. At the same time, it significantly inhibited the production of PGE on LPS-stimulated macrophage cells. The auraptene-treated group had a higher COX-2 mRNA expression but relatively lower COX-2 protein level which implied that auraptene suppressed the post-transcriptional expression of COX-2 protein but not the transcriptional process. Compared with aspirin, the lower cytotoxicity of auraptene can make it a potential source for medicine that can benefit patients who are suffering from chronic inflammatory diseases and need long-term medication. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index