RRC ID 58134
著者 Watanabe N, Nodomi K, Koike R, Kato A, Takeichi O, Kotani AI, Kaneko T, Sakagami H, Takei M, Ogata Y, Sato S, Imai K.
タイトル EBV LMP1 in Gingival Epithelium Potentially Contributes to Human Chronic Periodontitis via Inducible IL8 Production.
ジャーナル In Vivo
Abstract BACKGROUND/AIM:Human chronic periodontitis is a major health problem. Although some oral bacteria have been reported to be putative pathogens, Epstein-Barr virus (EBV) is reported to be associated with the progression of periodontitis. However, the role of EBV in the aetiology of periodontitis is unknown. Therefore, we investigated periodontal pathogenesis of EBV to confirm whether EBV-encoded latent membrane protein 1 (LMP1) induces Interleukin-8 (IL8) production in human gingival cells.
MATERIALS AND METHODS:Real-time polymerase chain reaction, luciferase assay, enzyme-linked immunosorbent assay (ELISA), and western blotting were performed for determining IL8 mRNA expression, nuclear factor kappa B (NF-ĸB) transcription, IL8 production, and the phosphorylation of NF-ĸB p65 and Inhibitor of kappa B alpha (IĸBα), respectively, in Ca9-22 human gingival epithelial cells. Two LMP1 mutants lacking C-terminal activating region (CATR) domains responsible for activating NF-ĸB were used.
RESULTS:Extremely high IL8 production was induced by LMP1 in time- and dose-dependent manner, where simultaneous phosphorylation of NF-κB p65 and IĸBα and transcription of NF-ĸB were observed. On the contrary, IL8 production and NF-ĸB transcription were drastically inhibited by dominant negative mutant of IĸBα. Moreover, the LMP1 mutants failed to induce IL8 production.
CONCLUSION:Our findings suggest that due to CATR domains, LMP1 contributes to the progression of periodontitis via IL8 production attributable to NF-ĸB activation.
巻・号 33(6)
ページ 1793-1800
公開日 2019-1-1
DOI 10.21873/invivo.11670
PII 33/6/1793
PMID 31662504
PMC PMC6899117
MeSH Cell Line Chronic Periodontitis / metabolism* Epithelial Cells / metabolism* Epithelial Cells / virology Epithelium / metabolism* Epithelium / virology Gingiva / metabolism* Gingiva / virology Herpesvirus 4, Human / metabolism* Humans Interleukin-8 / metabolism* NF-kappa B / metabolism Signal Transduction / physiology Transcription Factor RelA / metabolism Viral Matrix Proteins / metabolism*
IF 1.541
引用数 2
リソース情報
ヒト・動物細胞 Ca9-22(RCB1976)