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http://purl.uniprot.org/citations/23296707http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/23296707http://www.w3.org/2000/01/rdf-schema#comment"TLRs are essential for sensing the invading pathogens and initiating protective immune responses. However, aberrant activation of TLR-triggered inflammatory innate responses leads to the inflammatory disorders and autoimmune diseases. The molecular mechanisms that fine-tune TLR responses remain to be fully elucidated. Protein tyrosine phosphatase with proline-glutamine-serine-threonine-rich motifs (PTP-PEST) has been shown to be important in cell adhesion, migration, and also T cell and B cell activation. However, the roles of PTP-PEST in TLR-triggered immune response remain unclear. In this study, we report that PTP-PEST expression was upregulated in macrophages by TLR ligands. PTP-PEST inhibited TNF-α, IL-6, and IFN-β production in macrophages triggered by TLR3, TLR4, and TLR9. Overexpression of catalytically inactive mutants of PTP-PEST abolished the inhibitory effects, indicating that PTP-PEST inhibits TLR response in a phosphatase-dependent manner. Accordingly, PTP-PEST knockdown increased TLR3, -4, and -9-triggered proinflammatory cytokine and type I IFN production. PTP-PEST selectively inhibited TLR-induced NF-κB activation, whereas it had no substantial effect on MAPK and IFN regulatory factor 3 activation. Moreover, PTP-PEST directly interacted with IκB kinase β (IKKβ) then inhibited IKKβ phosphorylation at Ser(177/181) and Tyr(188/199), and subsequently suppressed IKKβ activation and kinase activity as well as downstream NF-κB activation, resulting in suppression of the TLR-triggered innate immune response. Thus, PTP-PEST functions as a feedback-negative regulator of TLR-triggered innate immune responses by selectively impairing IKKβ/NF-κB activation."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.org/dc/terms/identifier"doi:10.4049/jimmunol.1202384"xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/author"Cao X."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/author"Liu X."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/author"Li Y."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/author"Li N."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/author"Meng J."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/author"Zhang P."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/author"Zhu X."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/author"Zhan Z."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/date"2013"xsd:gYear
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/name"J Immunol"xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/pages"1685-1694"xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/title"Protein tyrosine phosphatase with proline-glutamine-serine-threonine-rich motifs negatively regulates TLR-triggered innate responses by selectively inhibiting IkappaB kinase beta/NF-kappaB activation."xsd:string
http://purl.uniprot.org/citations/23296707http://purl.uniprot.org/core/volume"190"xsd:string
http://purl.uniprot.org/citations/23296707http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/23296707
http://purl.uniprot.org/citations/23296707http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/23296707
http://purl.uniprot.org/uniprot/#_A0A0R4J0T4-mappedCitation-23296707http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/23296707
http://purl.uniprot.org/uniprot/#_F6ULQ4-mappedCitation-23296707http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/23296707
http://purl.uniprot.org/uniprot/#_F6Z0X5-mappedCitation-23296707http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/23296707
http://purl.uniprot.org/uniprot/#_D6RGT2-mappedCitation-23296707http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/23296707
http://purl.uniprot.org/uniprot/#_F6XPL0-mappedCitation-23296707http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/23296707
http://purl.uniprot.org/uniprot/#_O88351-mappedCitation-23296707http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/23296707
http://purl.uniprot.org/uniprot/#_Q3U141-mappedCitation-23296707http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/23296707