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Identification of a Choroid Plexus Vascular Barrier Closing during Intestinal Inflammation to Protect the Brain

ABSTRACT: Identification of a Choroid Plexus Vascular Barrier Closing during Intestinal Inflammation to Protect the Brain

PROVIDER: PRJNA740281 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14889300.fastq.gz	Fastqsanger.gz
	SRR14889301.fastq.gz	Fastqsanger.gz
	SRR14889302.fastq.gz	Fastqsanger.gz
	SRR14889303.fastq.gz	Fastqsanger.gz
	SRR14889304.fastq.gz	Fastqsanger.gz

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Identification of a Choroid Plexus Vascular Barrier Closing during Intestinal Inflammation to Protect the Brain [scRNA-Seq]

Project description:Identification of a Choroid Plexus Vascular Barrier Closing during Intestinal Inflammation to Protect the Brain [scRNA-Seq]

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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

The evolutionarily conserved zebrafish choroid plexus maintains the size of brain ventricles

Project description:The choroid plexus produces cerebrospinal fluid (CSF) by transport of electrolytes and water from the vasculature to the brain ventricles. The choroid plexus plays additional roles in brain development and homeostasis by secreting neurotrophic molecules, and by serving as a CSF-blood barrier and immune interface. Prior studies have identified transporters on the epithelial cells that transport water and ions into the ventricles and tight junctions involved in the CSF-blood barrier. Yet, how the choroid plexus epithelial cells maintain the brain ventricle system and control brain physiology remain unresolved. To provide novel insights into the physiological roles of the choroid plexus, we use juvenile and adult zebrafish as model systems. Upon histological and transcriptomic analyses, we first identified that the zebrafish choroid plexus is highly conserved with the mammalian choroid plexus and that it expresses all transporters necessary for CSF secretion. Using novel genetic lines, we also identified that the choroid plexus secretes proteins into the CSF. Next, we generated a transgenic line allowing us to ablate specifically the epithelial cells in the choroid plexus. Using the ablation system, we identified a reduction of the ventricular sizes, but no alterations of the CSF-blood barrier. Altogether, our findings identified that the zebrafish choroid plexus is evolutionarily conserved and critical for maintaining the size and homeostasis of the brain ventricles.

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Transcriptome profiling of developing choroid plexus and FoxJ1-/- choroid plexus

Project description:We report the transcription profiling of choroid plexus at 4 developmental stages, E12,5, P0, P14 and 6 month. We also compared wildtype and Foxj1-/- choroid plexus transcriptome at P0.

2025-03-10 | GSE127839 | GEO

Choroid Plexus Gene Expression in ApoE3 or ApoE4-Knockin Mouse Choroid Plexuses

Project description:Laser capture microdissected choroid plexuses were obtained and expression arrays were generated to investigate gene expression in ApoE-Knockin choroid plexuses; the choroid plexus forms the cerebrospinal fluid, the cerebrospinal fliod barrier, functions as the major gateway for blood-born leukocytes to enter the brain in degenerative and inflammatory brain diseases, and the principal neuroimmune interface in the brain. We found lipid deposits in the aged choroid plexus of hyperlipidemic ApoE4-Knockin mice but none in normolipidemic ApoE4-Knockin or normolipidemic or hyperlipidemic ApoE3-Knockin control choroid plexuses. Here, we studied the functional impact and gene epressions these choroid plexuses.

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Choroid plexus mast cells drive tumor-associated hydrocephalus

Project description:Tumor-associated hydrocephalus (TAH) is a common and lethal complication of brain metastases. Although other factors beyond mechanical obstructions have been suggested, the exact mechanisms are unknown. Using single-nucleus RNA-sequencing and spatial transcriptomics, we find that a distinct population of mast cells locate in the choroid plexus and dramatically increase during TAH. Genetic fate-tracing and intracranial mast cell-specific tryptase knockout showed that choroid plexus mast cells (CPMCs) disrupt cilia of choroid plexus epithelia via the tryptase-PAR2-FoxJ1 pathway and consequently increase cerebrospinal fluid production. Mast cells are also found in the human choroid plexus. Levels of tryptase in cerebrospinal fluid are closely associated with clinical severity of TAH. BMS-262084, an inhibitor of tryptase, can cross blood-brain-barrier, inhibits TAH in vivo and alleviates mast cell-induced damage of epithelial cilia in a human pluripotent stem cell-derived choroid plexus organoid model. Collectively, we uncover the function of CPMCs and provide an attractive therapy for TAH.

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Project description:Laser capture microdissected choroid plexuses were obtained and expression arrays were generated to investigate gene expression in wt and ApoE choroid plexuses; the choroid plexus forms the cerebrospinal fluid, the cerebrospinal fliod barrier, functions as the major gateway for blood-born leukocytes to enter the brain in degenerative and inflammatory brain diseases, and the principal neuroimmune interface in the brain. We found lipid deposits in the aged choroid plexus of hyperlipidemic mice but none in the wt control choroid plexuses. Here, we studied the functional impact and gene epressions in wt and ApoE-deficient choroid plexuses.

2018-11-20 | GSE85775 | GEO

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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

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Effects of gut microbiota on gene expression in the choroid plexus

Project description:Accumulating evidence indicates that gut microbiota dysbiosis is associated with increased blood-brain barrier (BBB) permeability and contributes to Alzheimer’s disease (AD) pathogenesis. In contrast, the influence of gut microbiota on the blood-cerebrospinal fluid (CSF) barrier has not yet been studied. Here, RNA-seq analysis of choroid plexus tissues of normal colonized specific pathogen-free (SPF) versus decolonized antibiotics-treated mice revealed that the barrier function of choroid plexus is affected by the absence of gut microbiota in the AB mice.

2023-06-05 | GSE228655 | GEO

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