RRC ID 18728
著者 Noman AS, Koide N, Iftakhar-E-Khuda I, Dagvadorj J, Tumurkhuu G, Naiki Y, Komatsu T, Yoshida T, Yokochi T.
タイトル Retinoblastoma protein-interacting zinc finger 1, a tumor suppressor, augments lipopolysaccharide-induced proinflammatory cytokine production via enhancing nuclear factor-kappaB activation.
ジャーナル Cell Immunol
Abstract The involvement of retinoblastoma protein-interacting zinc finger 1 (RIZ1), a tumor suppressor, in lipopolysaccharide (LPS)-induced inflammatory responses was investigated by using RAW 264.7 macrophage-like cells. LPS significantly augmented the expression of RIZ1 and the augmentation was mediated by the activation of nuclear factor (NF)-kappaB and Akt. The silencing of RIZ1 with the siRNA led to the inactivation of NF-kappaB in response to LPS. Moreover, the RIZ1 silencing caused the down-regulation of p53 activation and a p53 pharmacological inhibitor attenuated the RIZ1 expression. LPS-induced tumor necrosis factor-alpha and interleukin-6 production was prevented by RIZ1 siRNA or a p53 pharmacological inhibitor. Therefore, RIZ1 was suggested to augment LPS-induced NF-kappaB activation in collaboration with p53 and enhance the production of proinflammatory cytokines in response to LPS.
巻・号 264(2)
ページ 114-8
公開日 2010-1-1
DOI 10.1016/j.cellimm.2010.05.007
PII S0008-8749(10)00128-0
PMID 20557878
MeSH Animals Cell Line Cloning, Molecular Histone-Lysine N-Methyltransferase / genetics Histone-Lysine N-Methyltransferase / immunology Histone-Lysine N-Methyltransferase / metabolism* Inflammation Interleukin-6 / biosynthesis* Interleukin-6 / genetics Interleukin-6 / metabolism Lipopolysaccharides / immunology Lipopolysaccharides / metabolism Macrophages / immunology Macrophages / metabolism* Macrophages / pathology Mice Mutation / genetics NF-kappa B / genetics NF-kappa B / metabolism* RNA, Small Interfering / genetics Transcription Factors / genetics Transcription Factors / immunology Transcription Factors / metabolism* Transcriptional Activation / genetics Tumor Necrosis Factor-alpha / biosynthesis* Tumor Necrosis Factor-alpha / genetics Tumor Necrosis Factor-alpha / metabolism Tumor Suppressor Protein p53 / genetics Tumor Suppressor Protein p53 / metabolism
IF 4.078
引用数 3
WOS 分野 IMMUNOLOGY CELL BIOLOGY
リソース情報
ヒト・動物細胞 RAW 264(RCB0535)