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10.1128/jvi.76.11.5395-5403.2002 http://scihub22266oqcxt.onion/10.1128/jvi.76.11.5395-5403.2002 11991968!137035!11991968     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=11991968&cmd=llinks): Failed to open stream: HTTP request failed! 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Regulation of tumor necrosis factor alpha promoter by human parvovirus B19 NS1 through activation of AP-1 and AP-2 |pdf=|usr=}}{{11991968}} gab.com Text Regulation of tumor necrosis factor alpha promoter by human parvovirus B19 NS1 through activation of AP-1 and AP-2 JO: J Virol http://www.kidney.de/pget.php?&tw=1&pmid=11991968 #FOAvip Human parvovirus B19 frequently causes acute and chronic arthritis in adults. The molecular mechanism of B19 arthritis, however, remains poorly understood. We previously showed that the transmission of B19 from rheumatoid synoviocytes to monocytic cells is associated with enhanced secretion of tumor necrosis factor alpha (TNF-alpha), which triggers inflammation, and interleukin-6. To determine the role of B19 in the production of TNF-alpha, we focused on the function of its nonstructural protein, NS1, and established monocytic U937 lines transduced with the NS1 gene under the control of an inducible promoter. Production of TNF-alpha mRNA and protein was elevated in a manner associated with NS1 expression. Reporter assays revealed that AP-1 and AP-2 motifs on the TNF-alpha promoter were responsible for NS1-mediated up-regulation. Electrophoretic mobility shift assay showed specific binding of nuclear proteins from NS1 gene-transduced cells with the AP-1 or AP-2 probe. Antibodies against transcription factors AP-1 and AP-2 and anti-NS1 antibody inhibited the binding of nuclear proteins to the corresponding probes. These data indicate that NS1 up-regulates TNF-alpha transcription via activation of AP-1 and AP-2 in monocytic cells. The molecular mechanisms of NS1-mediated TNF-alpha expression would explain the pathogenesis of B19-associated inflammation. Twit Text FOAVip Regulation of tumor necrosis factor alpha promoter by human parvovirus B19 NS1 through activation of AP-1 and AP-2 ????J Virol http://www.kidney.de/pget.php?&tw=1&pmid=11991968 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=11991968 #FOAvip English Wikipedia <ref>{{Cite pmid|11991968}}</ref> Regulation of tumor necrosis factor alpha promoter by human parvovirus B19 NS1 through activation of AP-1 and AP-2 #MMPMID11991968 Fu Y; Ishii KK; Munakata Y; Saitoh T; Kaku M; Sasaki T J Virol 2002[Jun]; 76 (11): 5395-403 PMID11991968show ga Human parvovirus B19 frequently causes acute and chronic arthritis in adults. The molecular mechanism of B19 arthritis, however, remains poorly understood. We previously showed that the transmission of B19 from rheumatoid synoviocytes to monocytic cells is associated with enhanced secretion of tumor necrosis factor alpha (TNF-alpha), which triggers inflammation, and interleukin-6. To determine the role of B19 in the production of TNF-alpha, we focused on the function of its nonstructural protein, NS1, and established monocytic U937 lines transduced with the NS1 gene under the control of an inducible promoter. Production of TNF-alpha mRNA and protein was elevated in a manner associated with NS1 expression. Reporter assays revealed that AP-1 and AP-2 motifs on the TNF-alpha promoter were responsible for NS1-mediated up-regulation. Electrophoretic mobility shift assay showed specific binding of nuclear proteins from NS1 gene-transduced cells with the AP-1 or AP-2 probe. Antibodies against transcription factors AP-1 and AP-2 and anti-NS1 antibody inhibited the binding of nuclear proteins to the corresponding probes. These data indicate that NS1 up-regulates TNF-alpha transcription via activation of AP-1 and AP-2 in monocytic cells. The molecular mechanisms of NS1-mediated TNF-alpha expression would explain the pathogenesis of B19-associated inflammation. |*Gene Expression Regulation[MESH] |*Promoter Regions, Genetic[MESH] |DNA-Binding Proteins/*metabolism[MESH] |Gene Expression[MESH] |Humans[MESH] |Nuclear Proteins/metabolism[MESH] |Parvovirus B19, Human/genetics/*metabolism[MESH] |Response Elements[MESH] |Transcription Factor AP-1/*metabolism[MESH] |Transcription Factor AP-2[MESH] |Transcription Factors/*metabolism[MESH] |Transcription, Genetic[MESH] |Transfection[MESH] |Tumor Necrosis Factor-alpha/biosynthesis/*genetics[MESH] |U937 Cells[MESH]Regulation of tumor necrosis factor alpha promoter by human parvovirus(epmc).pdf DeepDyve Pubget Overpricing