Publicação

The Adhesion GPCR GPR125 is specifically expressed in the choroid plexus and is upregulated following brain injury

Ver documento

Detalhes bibliográficos
Resumo:Background: GPR125 belongs to the family of Adhesion G protein-coupled receptors (GPCRs). A single copy of GPR125 was found in many vertebrate genomes. We also identified a Drosophila sequence, DmCG15744, which shares a common ancestor with the entire Group III of Adhesion GPCRs, and also contains Ig, LRR and HBD domains which were observed in mammalian GPR125.Results: We found specific expression of GPR125 in cells of the choroid plexus using in situ hybridization and protein-specific antibodies and combined in situ/immunohistochemistry co-localization using cytokeratin, a marker specific for epithelial cells. Induction of inflammation by LPS did not change GPR125 expression. However, GPR125 expression was transiently increased ( almost 2-fold) at 4 h after traumatic brain injury (TBI) followed by a decrease ( approximately 4-fold) from 2 days onwards in the choroid plexus as well as increased expression ( 2-fold) in the hippocampus that was delayed until 1 day after injury.Conclusion: These findings suggest that GPR125 plays a functional role in choroidal and hippocampal response to injury.
Autores principais:Pickering, Chris
Outros Autores:Hägglund, Maria; Szmydynger-Chodobska, Joanna; Marques, Fernanda; Palha, Joana Almeida; Waller, Linn; Chodobski, Adam; Fredriksson, Robert; Lagerström, Malin C.; Schiöth, Helgi B.
Assunto:Animals Base Sequence Brain Injuries Choroid Plexus Gene Expression Profiling Hippocampus Humans Immunohistochemistry In Situ Hybridization Inflammation Keratins Lipopolysaccharides Male Membrane Glycoproteins Membrane Proteins Mice Platelet Glycoprotein GPIb-IX Complex RNA, Messenger Rats Receptors, G-Protein-Coupled Time Factors Up-Regulation
Ano:2008
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho
Descrição
Resumo:Background: GPR125 belongs to the family of Adhesion G protein-coupled receptors (GPCRs). A single copy of GPR125 was found in many vertebrate genomes. We also identified a Drosophila sequence, DmCG15744, which shares a common ancestor with the entire Group III of Adhesion GPCRs, and also contains Ig, LRR and HBD domains which were observed in mammalian GPR125.Results: We found specific expression of GPR125 in cells of the choroid plexus using in situ hybridization and protein-specific antibodies and combined in situ/immunohistochemistry co-localization using cytokeratin, a marker specific for epithelial cells. Induction of inflammation by LPS did not change GPR125 expression. However, GPR125 expression was transiently increased ( almost 2-fold) at 4 h after traumatic brain injury (TBI) followed by a decrease ( approximately 4-fold) from 2 days onwards in the choroid plexus as well as increased expression ( 2-fold) in the hippocampus that was delayed until 1 day after injury.Conclusion: These findings suggest that GPR125 plays a functional role in choroidal and hippocampal response to injury.