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N-Acetylcysteine Prevents LPS-Induced Pro-inflammatory Cytokines and MMP2 Production in Gingival Fibroblasts

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dc.contributor.authorKim, Do Young-
dc.contributor.authorJun, Ji-Hae-
dc.contributor.authorLee, Hye-Lim-
dc.contributor.authorWoo, Kyung Mi-
dc.contributor.authorRyoo, Hyun-Mo-
dc.contributor.authorKim, Gwan-Shik-
dc.contributor.authorBeak, Jeong-Hwa-
dc.contributor.authorHan, Soo-Boo-
dc.date.accessioned2011-10-18T07:51:55Z-
dc.date.available2011-10-18T07:51:55Z-
dc.date.issued2007-
dc.identifier.citationArch Pharm Res 30,1283-1292(2007)en
dc.identifier.issn0253-6269-
dc.identifier.urihttps://hdl.handle.net/10371/74291-
dc.description.abstractPeriodontitis is an inflammatory process that ultimately results in tooth loss. Although the primary etiologic agent for periodontitis is bacteria, the majority of periodontal tissue destruction is thought to be caused by an inappropriate host response. Reactive oxygen species (ROS) have been known to be involved in periodontal tissue destruction. We treated human gingival fibroblasts with lipopolysaccharide (LPS) obtained from E. coli and the periodontopathogens Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis, and examined their inflammatory responses in the presence and absence of the antioxidant N-acetylcysteine (NAC). LPS enhanced ROS production, as well as, expression of pro-inflammatory cytokines such as interleukin-, interleukin-6, interleukin-8 and tumor necrosis factor-, and the production and activation of MMP2. NAG suppressed all LPS-induced inflammatory responses examined, suggesting that LPS-induced ROS may playa major regulatory role in these responses in gingival fibroblasts. In addition, NAG prevented LPS-induced activation of p38 MAPK and JNK but not phosphorylation and subsequent degradation of 1kB. These results indicate that NAG exerts anti-inflammatory effects in LPS-stimulated gingival fibroblasts, functioning at least in part via down-regulation of JNK and p38 MAPK activation. Furthermore, this work suggests that antioxidants may be useful in adjunctive therapies that complement conventional periodontal treatments.en
dc.description.sponsorshipThis work was supported by grants from the Korea Health 21 R&D Project, Ministry of Health & Welfare, Republic of Korea(A050189) to Baek, J.H.; and from the SNUDH Research Fund(03-2005-002) to Han, S.B.en
dc.language.isoenen
dc.publisherSpringer Verlagen
dc.subjectGingival fibroblastsen
dc.subjectLPSen
dc.subjectMMP2en
dc.subjectN-Acetylcysteineen
dc.subjectPro-inflammatory cytokinesen
dc.titleN-Acetylcysteine Prevents LPS-Induced Pro-inflammatory Cytokines and MMP2 Production in Gingival Fibroblastsen
dc.typeArticleen
dc.contributor.AlternativeAuthor김도영-
dc.contributor.AlternativeAuthor전지혜-
dc.contributor.AlternativeAuthor이혜림-
dc.contributor.AlternativeAuthor우경미-
dc.contributor.AlternativeAuthor류현모-
dc.contributor.AlternativeAuthor김관식-
dc.contributor.AlternativeAuthor백정화-
dc.contributor.AlternativeAuthor한수부-
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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