| 槲寄生의 항염증 효능 및 암세포 이주저해에 미치는 영향 |
| 김현영1, 장수영1, 정지천2, 신현철1 |
1대구한의대학교 한의과대학 내과학교실
2동국대학교 한의과대학 내과학교실 |
| The Effects of Gokgisaeng on Anti-inflammation and Rat C6 Glioma Cell Migration |
| Hyun-young Kim1, Soo-young Jang1, Ji-cheon Jeong2, Hyeon-cheol Shin1 |
1Dept. of Internal Medicine, College of Oriental Medicine, Dae-gu Haany University
2Dept. of Internal Medicine, College of Oriental Medicine, Dong-Guk University |
| Correspondence |
Hyeon-cheol Shin ,Tel: 054-281-0055, Fax: 054-281-7464, Email: ungaeshin@naver.com
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Published online: March 30, 2013. |
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| ABSTRACT |
Objectives:
Gokgisaeng (Korean mistletoe) is used for the treatment of inflammatory and cancer diseases in traditional Korean medicine and its major component lectins have been reported to induce nitric oxide (NO) in RAW 264.7 macrophages, and also induce apoptosis of various types of cancer cells, although its modulatory effects on cancer cell migration and macrophage activation is poorly understood. The aim of this study is to clarify molecular mechanisms of action responsible for the anti-inflammatory and antitumor migration potentials of Korean mistletoe extract (KME).
Methods :
We investigated the anti-inflammatory activity of KME on NO production and inducible nitric oxide synthase (iNOS) expression by lipopolysaccharide (LPS) in both RAW 264.7 macrophages and rat C6 glioma cells, and also evaluated inhibitory efficacy on glioma cell growth and migration. For assessment, XTT assay, nitrite assay, RT-PCR, scratch-wound and Boyden chamber assay, and western blot analysis were performed.
Results:
Previously reported, unlike the efficacy of Gokgisaeng lectin, KME inhibited NO production and iNOS expression, and suppressed pro-inflammatory mediators including IL-1β, IL-6, COX-2, iNOS in LPS-stimulated RAW 264.7 cells. Furthermore, KME suppressed tumor cell growth and migration, and it also inhibited LPS-induced NO release and iNOS activation by down-regulating expression of protein kinase C (PKC) and phosphorylation of ERK in C6 glioma cells.
Conclusions:
Our research findings provide evidence that KME can play a significant role in blocking pro-inflammatory reaction and malignant progression of tumors through the suppression of NO/iNOS by down-regulating of inflammatory signaling pathways, PKC/ERK. |
| Key words:
Gokgisaeng (Korean mistletoe), cell migration, glioma cell, inducible nitric oxide synthase, protein kinase C |
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