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논문 기본 정보

자료유형
학술저널
저자정보
Yun, Yun-Ha (Department of Pharmacy, Sahmyook University) Han, Shin-Ha (Department of Pharmacy, Sahmyook University) Park, Eun-Jung (Department of Pharmacy, Sahmyook University) Yim, Don-Sool (Department of Pharmacy, Sahmyook University) Lee, Sook-Yeon (Department of Pharmacy, Sahmyook University) Lee, Chong-kil (College of Pharmacy, Chung-buk National University) Cho, Kyung_Hae (Department of Biology, Seoul Women's University) Kim, Kyung_Jae (Department of Pharmacy, Sahmyook University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제26권 제12호
발행연도
2003.1
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1,087 - 1,095 (9page)

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Betulinic acid (BA), a pentacyclic triterpene isolated from Lycopus lucidus, has been reported to be a selective inducer of apoptosis in various human cancer and shown anti-inflammatory and immunomodulatory properties. We postulated that BA modulates the immunomodulatory properties at least two groups of protein mediators of inflammation, interlukin-1$\beta$ (IL-1$\beta$) and the tumor necrosis factor- $\alpha$ (TNF-$\alpha$) on the basis of the critical role of the monocytes and tissue macrophages in inflammatory and immune responses. TNF-$\alpha$ and IL-1$\beta$ were produced by BA in a dose dependent manner at concentration of 0.625 and 10 $\mu$g/mL. The production of NO associated with iNOS was inhibited when treated with LPS at the concentration of 2.5 to 20 $\mu$g/mL of BA whereas COX-2 expression was decreased at 2.5 to 20 $\mu$g/mL. These modulations of inflammatory mediators were examined in LPS-stimulated RAW 264.7 cells and peritoneal macrophages. The morphology of macrophage was also examined and enhanced surface CD 40 molecule was expressed when treated BA at 0.625∼5 $\mu$g/mL with or without LPS. Furthermore, BA (20 $\mu$g/mL) enhanced apoptosis by producing DNA ladder in the RAW 264.7 cells. Our results indicated that BA induced activation of macrophage and pro-inflammatory cytokines. This may provide a molecular basis for the ability of BA to mediate macrophage, suppress inflammation, and modulate the immune response.

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