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Analysis of differential gene expression in the choroid plexus (ChP) of P60 mice at 9am and 9pm

ABSTRACT: Analysis of differential gene expression in the choroid plexus (ChP) of P60 mice at 9am and 9pm

PROVIDER: PRJNA679768 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13091557.fastq.gz	Fastqsanger.gz
	SRR13091558.fastq.gz	Fastqsanger.gz
	SRR13091559.fastq.gz	Fastqsanger.gz
	SRR13091560.fastq.gz	Fastqsanger.gz
	SRR13091561.fastq.gz	Fastqsanger.gz

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Analysis of differential gene expression in the choroid plexus (ChP) of P60 mice at 9am and 9pm

Project description:3 mice per timepoint (9am and 9pm) with FoxJ1-Cre x TRAP-BAC-EGFP:L10a dissected choroid plexus. Transmission and secretion of signals via the choroid plexus (ChP) brain barrier can modulate brain states via regulation of cerebrospinal fluid (CSF) composition. Here, we developed a platform to analyze diurnal variations in male mouse ChP and CSF. Ribosome profiling of ChP epithelial cells revealed diurnal translatome differences in metabolic machinery, secreted proteins, and barrier components. Using ChP and CSF metabolomics and blood-CSF barrier analyses, we observed diurnal changes in metabolites and cellular junctions. We then focused on transthyretin (TTR), a diurnally regulated thyroid hormone chaperone secreted by the ChP. Diurnal variation in ChP TTR depended on Bmal1 clock gene expression. We achieved real-time tracking of CSF-TTR in awake TtrmNeonGreen mice via multi-day intracerebroventricular fiber photometry. Diurnal changes in ChP and CSF TTR levels correlated with CSF thyroid hormone levels. These datasets highlight an integrated platform for investigating diurnal control of brain states by the ChP and CSF.

2023-05-10 | GSE161877 | GEO

Analysis of differential gene expression in the choroid plexus (ChP) of E16.5 and P60 mice

Project description:Analysis of differential gene expression in the choroid plexus (ChP) of E16.5 and P60 mice

| PRJNA577910 | ENA

Analysis of differential gene expression in the choroid plexus (ChP) of E16.5 and P60 mice

Project description:Age-appropriate regulation of cerebrospinal fluid (CSF) dynamics including production, flow, and clearance (e.g. via glymphatics and dural lymphatics) is essential for brain health. The choroid plexus (ChP) is an important compartment in CSF dynamics but its contribution is poorly understood. To identify temporally regulated ChP epithelial cell functions that may relate to increased ATP demand, we investigated transcripts that are prioritized for translation, therefore reflecting the functional preference of the ChP tissue. We employed Translating Ribosomal Affinity Purification. We identified ChP Na-K-Cl co-transporter [NKCC1] as developmentally regulated, in both expression and function, by mechanisms ranging from epigenetic (NuRD) to post-translational, coupled with increased ATP production. Premature NKCC1 overexpression in ChP accelerated CSF [K+] reduction, reduced ventricle size, and increased intracranial compliance by adulthood as measured by a murine intracranial pressu re monitor paired serially with MRI. Our data point to a critical developmental period when ChP transiently absorbs CSF through NKCC1-mediated K+ transport, which bears implications on lifelong brain fluid homeostasis and health.

2020-11-28 | GSE138970 | GEO

Gene expression data from normal mouse choroid plexus, choroid plexus papilloma and choroid plexus carcinoma

Project description:Atoh1-Cre; Myc/Myc mice developed choroid plexus papilloma and Atoh1-Cre; Myc/Myc; p53fl/fl mice developed choroid plexus carcinoma. By studying the gene expression profiles of normal choroid plexus, choroid plexus papilloma and choroid plexus carcinoma in mice, we aim to gain a better understanding of the biology of choroid plexus tumors

2019-05-01 | GSE126327 | GEO

A druggable signaling hub of choroid plexus immune-secretory function

Project description:Integrated multi-omics investigation of novel rat models of acquired hydrocephalus, Blood or bacteria in CSF trigger similar choroid plexus (ChP) immune-secretory responses, Crosstalk between ChP immune and epithelial cells drives CSF hypersecretion and ventriculomegaly, Repurposed systemic immunomodulators ameliorate acquired hydrocephalus, Identification of a druggable hub of ChP function relevant for multiple neurological diseases.

2023-02-17 | GSE218143 | GEO

A druggable signaling hub of choroid plexus immune-secretory function

2023-02-17 | GSE192946 | GEO

Characterization of the choroid plexus role in Alzheimer’s disease pathophysiology

Project description:Structural and functional changes of the choroid plexus (ChP) have been reported in Alzheimer’s disease (AD). Nonetheless, the role of the ChP in the pathogenesis of AD remains largely unknown. We aim to unravel the relation between ChP functioning and core AD pathogenesis using a unique proteomic approach in mice and humans. We used an APP knock-in mouse model, APPNL-G-F, exhibiting amyloid pathology, to study the association between AD brain pathology and protein changes in mouse ChP tissue and CSF using liquid chromatography mass spectrometry. Mouse proteomes were investigated at the age of 7 weeks (n=5) and 40 weeks (n=5). Results were compared with existing human AD CSF proteomic data (n=496) to identify key proteins and pathways associated with ChP changes in AD.

2024-08-10 | PXD052590 | Pride

Gene expression profiles obtained from laser-microdissected human choroid plexus papilloma cells

Project description:Gene expression profiles generated from human tumor cells laser-microdissected from surgical samples of seven choroid plexus papillomas (Grade I WHO) as eight samples of epithelial cells lasermicrodissected from normal choroid plexus obtained at autopsy. Choroid plexus tumors are rare pediatric brain tumors derrived from the choroid plexus epithelium. Gene expression profiles of lasermicrodissected tumor cells from 7 individual choroid plexus tumor samples obtained at surgery were compared to gene expression profiles from non-neoplastic choroid plexus epithelial cells lasermicrodissected from normal non-neoplastic choroid plexus obtained at autopsy (Am J Surg Pathol. 2006 Jan;30(1):66-74.) in order to identfy genes differentially expressed in choroid plexus tumor cells.

2009-02-01 | E-GEOD-14098 | biostudies-arrayexpress

Gene expression data from normal mouse choroid plexus, choroid plexus papilloma and choroid plexus carcinoma

Project description:Gene expression data from normal mouse choroid plexus, choroid plexus papilloma and choroid plexus carcinoma

| PRJNA521552 | ENA

The transcription factor Otx2 regulates choroid plexus development and function

Project description:The choroid plexuses (ChPs) are the main regulators of cerebrospinal fluid (CSF) composition and thereby also control the composition of a principal source of signaling molecules that is in direct contact with neural stem cells in the developing brain. The regulators of ChP development mediating the acquisition of a fate that differs from the neighboring neuroepithelial cells are poorly understood. Here, we demonstrate in mice a crucial role for the transcription factor Otx2 in the development and maintenance of ChP cells. Deletion of Otx2 by the Otx2-CreERT2 driver line at E9 resulted in a lack of all ChPs, whereas deletion by the Gdf7-Cre driver line affected predominately the hindbrain ChP, which was reduced in size, primarily owing to an increase in apoptosis upon Otx2 deletion. Strikingly, Otx2 was still required for the maintenance of hindbrain ChP cells at later stages when Otx2 deletion was induced at E15, demonstrating a central role of Otx2 in ChP development and maintenance. Moreover, the predominant defects in the hindbrain ChP mediated by Gdf7-Cre deletion of Otx2 revealed its key role in regulating early CSF composition, which was altered in protein content, including the levels of Wnt4 and the Wnt modulator Tgm2. Accordingly, proliferation and Wnt signaling levels were increased in the distant cerebral cortex, suggesting a role of the hindbrain ChP in regulating CSF composition, including key signaling molecules. Thus, Otx2 acts as a master regulator of ChP development, thereby influencing one of the principal sources of signaling in the developing brain, the CSF. We performed gene expression microarray analysis of fourth ventricular choroid plexus tissue from Otx2 k.o. mice compared to wildtype mice from the same litters.

2013-02-05 | E-GEOD-27630 | biostudies-arrayexpress

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