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Title: The choroid plexus transcriptome reveals changes in type I and II interferon responses in a mouse model of Alzheimer's disease      
dateReleased:
12-31-2015
description:
Alzheimer’s disease (AD) is a neurodegenerative disease characterized by a marked decline in cognition and memory formation. Increasing evidence highlights the essential role of neuroinflammatory and immune-related molecules, namely the ones that are produced at the brain barriers, on brain immune surveillance, cellular dysfunction and amyloid beta (Aβ) pathology in AD. Therefore, understanding the response at the brain barriers may unravel novel pathways that are relevant for the pathophysiology of AD. Herein, we focused on the study of the choroid plexus (CP), which constitutes the blood-cerebrospinal fluid barrier, in aging and in AD. Specifically, we used the PDGFB-APPSwInd (J20) transgenic mouse model of AD, which presents early memory decline and progressive Aβ accumulation, and littermate age-matched wild-type (WT) mice, to characterize the CP transcriptome at 3, 5-6 and 11-12 months of age. The most striking observation was that the CP of J20 mice displayed an overall overexpression of type I interferon (IFN) response genes at all ages. Moreover, J20 mice presented a high expression of type II IFN genes in the CP at 3 months, which became lower than WT at 5-6 and 11-12 months. Importantly, along with a marked memory impairment and increased glial activation, J20 mice also presented a similar overexpression of type I IFN genes in the dorsal hippocampus at 3 months. Altogether, these findings provide new insights on a possible interplay between type I and type II IFN responses in AD and point to IFNs as mediators of cognitive decline in aging and in AD. The CP transcriptome of at least 3 mice of each age (3, 5-6 and 11-12 months) and of each genotype (WT or J20) was analyzed and compared.
privacy:
not applicable
aggregation:
instance of dataset
ID:
E-GEOD-66598
refinement:
raw
alternateIdentifiers:
66598
keywords:
functional genomics
dateModified:
01-03-2016
availability:
available
types:
gene expression
name:
Mus musculus
ID:
A-MEXP-1174
name:
Illumina MouseRef-8 v2.0 Expression BeadChip
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-GEOD-66598/E-GEOD-66598.raw.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
authentication:
none
authorization:
none
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-GEOD-66598/E-GEOD-66598.processed.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
authentication:
none
authorization:
none
accessURL: https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE66598
storedIn:
Gene Expression Omnibus
qualifier:
not compressed
format:
HTML
accessType:
landing page
primary:
true
authentication:
none
authorization:
none
abbreviation:
EBI
homePage: http://www.ebi.ac.uk/
ID:
SCR:004727
name:
European Bioinformatics Institute
homePage: https://www.ebi.ac.uk/arrayexpress/
ID:
SCR:002964
name:
ArrayExpress

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