@prefix go: . @prefix this: . @prefix sub: . @prefix beldoc: . @prefix rdfs: . @prefix rdf: . @prefix xsd: . @prefix dct: . @prefix dce: . @prefix pav: . @prefix np: . @prefix belv: . @prefix prov: . @prefix Protein: . @prefix hgnc: . @prefix geneProductOf: . @prefix mesh: . @prefix occursIn: . @prefix species: . @prefix pubmed: . @prefix orcid: . sub:Head { this: np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo; a np:Nanopublication . } sub:assertion { sub:_1 geneProductOf: hgnc:5991; a Protein: . sub:_2 belv:translocationFrom go:0005622; belv:translocationOf sub:_3; belv:translocationTo go:0005576 . sub:_3 geneProductOf: hgnc:17700; a Protein: . sub:_4 occursIn: mesh:D003106, species:9606; rdf:object sub:_2; rdf:predicate belv:increases; rdf:subject sub:_1; a rdf:Statement . sub:assertion rdfs:label "p(HGNC:IL1A) -> sec(p(HGNC:CCL28))" . } sub:provenance { beldoc: dce:description "Approximately 61,000 statements."; dce:rights "Copyright (c) 2011-2012, Selventa. All rights reserved."; dce:title "BEL Framework Large Corpus Document"; pav:authoredBy sub:_6; pav:version "1.4" . sub:_5 prov:value "The chemokine CCL28 is constitutively expressed by epithelial cells at several mucosal sites and is thought to function as a homeostatic chemoattractant of subpopulations of T cells and IgA B cells and to mediate antimicrobial activity. We report herein on the regulation of CCL28 in human colon epithelium by the proinflammatory cytokine IL-1, bacterial flagellin, and n-butyrate, a product of microbial metabolism. In vivo, CCL28 was markedly increased in the epithelium of pathologically inflamed compared with normal human colon. Human colon and small intestinal xenografts were used to model human intestinal epithelium in vivo. Xenografts constitutively expressed little, if any, CCL28 mRNA or protein. After stimulation with the proinflammatory cytokine IL-1, CCL28 mRNA and protein were significantly increased in the epithelium of colon but not small intestinal xenografts, although both upregulated the expression of another prototypic chemokine, CXCL8, in response to the identical stimulus. In studies of CCL28 regulation using human colon epithelial cell lines, proinflammatory stimuli, including IL-1, bacterial flagellin, and bacterial infection, significantly upregulated CCL28 mRNA expression and protein production. In addition, CCL28 mRNA expression and protein secretion by those cells were significantly increased by the short-chain fatty acid n-butyrate, and IL-1- or flagellin-stimulated upregulation of CCL28 by colon epithelial cells was synergistically increased by pretreatment of cells with n-butyrate. Consistent with its upregulated expression by proinflammatory stimuli, CCL28 mRNA expression was attenuated by pharmacological inhibitors of NF-kappaB activation. These findings indicate that CCL28 functions as an inflammatory chemokine in human colon epithelium and suggest the notion that CCL28 may act to counterregulate colonic inflammation."; prov:wasQuotedFrom pubmed:15246961 . sub:_6 rdfs:label "Selventa" . sub:assertion prov:hadPrimarySource pubmed:15246961; prov:wasDerivedFrom beldoc:, sub:_5 . } sub:pubinfo { this: dct:created "2014-07-03T14:30:25.773+02:00"^^xsd:dateTime; pav:createdBy orcid:0000-0001-6818-334X, orcid:0000-0002-1267-0234 . }