title: In vitro and in vivo studies on CCR10 regulation by Annexin A1.
abstract: The mode of action of annexin A1 (ANXA1) is poorly understood. By using rapid subtraction hybridization we studied the effects of human recombinant ANXA1 and the N-terminal ANXA1 peptide on gene expression in a human larynx cell line. Three genes showed strong downregulation after treatment with ANXA1. In contrast, expression of CCR10, a seven transmembrane G-protein coupled receptor for chemokine CCL27 involved in mucosal immunity, was increased. Moreover the reduction in CCR10 expression induced by ANXA1 gene deletion was rescued by intravenous treatment with low doses of ANXA1. These findings provide new evidence that ANXA1 modulates gene expression.
authors.affiliation: Department of Cellular and Molecular Neuroscience, Division of Neuroscience and Mental Health, Faculty of Medicine, Imperial College London, Hammersmith Campus, Du Cane Road, London W12 0NN, UK.
authors.forename: Flavia Cristina
authors.initials: FC
authors.lastname: Rodrigues-Lisoni
authors.forename: Devinder K
authors.initials: DK
authors.lastname: Mehet
authors.forename: Devinder K
authors.initials: DK
authors.lastname: Mehemet
authors.forename: Paulo
authors.initials: P
authors.lastname: Peitl
authors.forename: Christopher D
authors.initials: CD
authors.lastname: John
authors.forename: Wilson Araújo
authors.initials: WA
authors.lastname: da Silva Júnior
authors.forename: Eloiza
authors.initials: E
authors.lastname: Tajara
authors.forename: Julia C
authors.initials: JC
authors.lastname: Buckingham
authors.forename: Egle
authors.initials: E
authors.lastname: Solito
mesh_terms: D000818:Animals; D017305:Annexin A1 / Q000172:deficiency / Q000235:genetics*; D002460:Cell Line; D005786:Gene Expression Regulation / Q000187:drug effects; D006801:Humans; D007830:Larynx / Q000166:cytology; D008297:Male; D051379:Mice; D018345:Mice, Knockout; D010446:Peptide Fragments / Q000494:pharmacology; D054447:Receptors, CCR10; D019707:Receptors, Chemokine / Q000502:physiology*; D011994:Recombinant Proteins
chemical_list: D017305:Annexin A1; C515706:CCR10 protein, human; C515707:Ccr10 protein, mouse; D010446:Peptide Fragments; D054447:Receptors, CCR10; D019707:Receptors, Chemokine; D011994:Recombinant Proteins