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E.coli Lipopolysaccharides로 유도된 사람 호중구중에서 CD14, Toll-Like receptors, cytoskeletal inhibitors 그리고 NF-kB inhibitor가 MMP-8 분비에 미치는 영향

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Authors
양승민; 김태일; 설양조; 이용무; 구영; 정종평; 한수부; 류인철
Issue Date
2005
Publisher
대한치주과학회
Citation
대한치주과학회지 2005;35(2):427-436.
Keywords
Human NeutrophilCD14TLRsCytoskeletal InhibitorsNF-B inhibitorMMP-8
Abstract
Objective: MMP-8 is a neutrophil enzyme and its level increases in some inflammatory diseases, including periodontal disease. We knew that the lipopolysaccharide of E.coli(E-LPS) induced MMP-8 release from human neutrophils. E-LPS is known to induce the production and release of inflammatory cytokines through CD14, Toll-like receptor(TLR). In the present study, we investigated whether MMP-8 release by E-LPS is induced via CD14-TLR pathway and the cellular mechanism of MMP-8 release in human neutrophils. Material and methods: Human neutrophils were isolated from the peripheral blood of healthy donors and pre-incubated in medium containing antibodies against CD14, anti-TLR2 and anti-TLR4 or several inhibitors of microtubules and microfilaments and then incubated with E-LPS. The cells were treated TPCK and E-LPS simultaneously. The MMP-8amount in the culture medium was determined using ELISA. Results: E-LPS increased MMP-8release from neutrophils and its induction was inhibited by anti-CD14 and anti-TLR4 but not by anti-TLR2 antibodies. The inhibitors of microtubule and microfilament polymerization significantly decreased E-LPS-induced MMP-8release. TPCK inhibited E-LPS-induced MMP-8 release. Conclusion: These results suggest that MMP-8 release is induced by E-LPS via the CD14-TLR4 signal pathway in human neutrophils and may be depedent on microtubule and microfilament systems and pathway.
ISSN
0250-3352
Language
Korean
URI
http://uci.or.kr/G100:I100-KOI(KISTI1.1003/JNL.JAKO200521452724037)

https://hdl.handle.net/10371/47850
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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