Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/64304

TitleKinetic profile of the transcriptome changes induced in the choroid plexus by peripheral inflammation
Author(s)Marques, Fernanda
Sousa, João Carlos
Coppola, Giovanni
Falcão, Ana Luisa Mendanha
Rodrigues, Ana João
Geschwind, Daniel H.
Sousa, Nuno
Correia-Neves, M
Palha, Joana Almeida
KeywordsAcute-Phase Reaction
Animals
Blood-Brain Barrier
Cells, Cultured
Cerebrospinal Fluid
Choroid Plexus
Down-Regulation
Epithelial Cells
Gene Expression
Kinetics
Lipopolysaccharides
Male
Mice
Mice, Inbred C57BL
Oligonucleotide Array Sequence Analysis
Rats
Rats, Wistar
Reverse Transcriptase Polymerase Chain Reaction
Up-Regulation
Gene Expression Profiling
Cerebrospinal fluid
Inflammation
Transcriptome
lipopolysaccharide
Issue dateMay-2009
PublisherSAGE Publications
JournalJournal of Cerebral Blood Flow & Metabolism
Abstract(s)The choroid plexus, being part of the blood-brain barriers and responsible for the production of cerebrospinal fluid, is ideally positioned to transmit signals into and out of the brain. This study, using microarray analysis, shows that the mouse choroid plexus displays an acute-phase response after an inflammatory stimulus induced in the periphery by lipopolysaccharide (LPS). Remarkably, the response is specific to a restricted number of genes (out of a total of 24,000 genes analyzed, 252 are up-regulated and 173 are down-regulated) and transient, as it returns to basal conditions within 72 h. The up-regulated genes cluster into families implicated in immune-mediated cascades and in extracellular matrix remodeling, whereas those down-regulated participate in maintenance of the barrier function. Importantly, several acute-phase proteins, whose blood concentrations rise in response to inflammation, may contribute to the effects observed in vivo after LPS injection, as suggested by the differential response of primary choroid plexus epithelial cell cultures to LPS alone or to serum collected from animals exposed to LPS. By modulating the composition of the cerebrospinal fluid, which will ultimately influence the brain parenchyma, the choroid plexus response to inflammation may be of relevance in brain homeostasis in health and disease.
TypeArticle
URIhttp://hdl.handle.net/1822/64304
DOI10.1038/jcbfm.2009.15
ISSN0271-678X
e-ISSN1559-7016
Publisher versionhttps://journals.sagepub.com/doi/full/10.1038/jcbfm.2009.15
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:ICVS - Artigos em Revistas Internacionais com Referee

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