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http://purl.uniprot.org/citations/18328742http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/18328742http://www.w3.org/2000/01/rdf-schema#comment"Costimulatory signals are critical to T cell activation, but how their effects are mediated remains incompletely characterized. Here, we demonstrate that locally produced C5a and C3a anaphylatoxins interacting with their G protein-coupled receptors (GPCRs), C5aR and C3aR, on APCs and T cells both upstream and downstream of CD28 and CD40L signaling are integrally involved in T cell proliferation and differentiation. Disabling these interactions reduced MHC class II and costimulatory-molecule expression and dramatically diminished T cell responses. Importantly, impaired T cell activation by Cd80-/-Cd86-/- and Cd40-/-APCs was reconstituted by added C5a or C3a. C5aR and C3aR mediated their effects via PI-3 kinase-gamma-dependent AKT phosphorylation, providing a link between GPCR signaling, CD28 costimulation, and T cell survival. These local paracrine and autocrine interactions thus operate constitutively in naive T cells to maintain viability, and their amplification by cognate APC partners thus is critical to T cell costimulation."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.org/dc/terms/identifier"doi:10.1016/j.immuni.2008.02.001"xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Huang D."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Liu J."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"An F."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Heeger P.S."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Shapiro V.S."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Medof M.E."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Dubyak G.R."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Muqim N."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Lalli P.N."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/author"Strainic M.G."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/date"2008"xsd:gYear
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/name"Immunity"xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/pages"425-435"xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/title"Locally produced complement fragments C5a and C3a provide both costimulatory and survival signals to naive CD4+ T cells."xsd:string
http://purl.uniprot.org/citations/18328742http://purl.uniprot.org/core/volume"28"xsd:string
http://purl.uniprot.org/citations/18328742http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/18328742
http://purl.uniprot.org/citations/18328742http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/18328742
http://purl.uniprot.org/uniprot/#_A0A0J9YUU3-mappedCitation-18328742http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/18328742
http://purl.uniprot.org/uniprot/#_A0A1B0GT01-mappedCitation-18328742http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/18328742
http://purl.uniprot.org/uniprot/#_A2A5L7-mappedCitation-18328742http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/18328742
http://purl.uniprot.org/uniprot/#_A0A0X9RAD7-mappedCitation-18328742http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/18328742
http://purl.uniprot.org/uniprot/#_E1APH6-mappedCitation-18328742http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/18328742