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Transcriptomic analysis of ApoE-KO/APOL1 mouse choroid plexus

ABSTRACT: Transcriptomic analysis of ApoE-KO/APOL1 mouse choroid plexus

PROVIDER: PRJNA1061484 | ENA |

REPOSITORIES: ENA

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			Action	DRS
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	SRR27437857_1.fastq.gz	Fastqsanger.gz
	SRR27437857_2.fastq.gz	Fastqsanger.gz
	SRR27437858_1.fastq.gz	Fastqsanger.gz
	SRR27437858_2.fastq.gz	Fastqsanger.gz

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Transcriptomic analysis of ApoE-KO/APOL1 mouse choroid plexus

Project description:We analyzed transcriptomic profiles of mouse choroid plexus by single-nuclear RNA-seq.

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Choroid Plexus Gene Expression in wild-type (wt) and ApoE-deficient Mouse Choroid Plexuses

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.

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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

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

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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.

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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.

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Project description:Choroid plexus secretes cerebrospinal fluid important for brain development and homeostasis. The OTX2 homeoprotein is critical for choroid plexus development and remains highly expressed in adult choroid plexus. Through RNA sequencing analyses of constitutive and conditional knockdown adult mouse models, we reveal putative roles for OTX2 in choroid plexus function, including cell signaling and adhesion, and show that it regulates the expression of factors secreted into cerebrospinal fluid, notably transthyretin. We also show that Otx2 expression impacts choroid plexus immune and stress responses, and also affects splicing which leads to changes in mRNA isoforms of proteins implicated in oxidative stress response and DNA repair. Through mass spectrometry analysis of OTX2 protein partners in the choroid plexus, and in known non-cell autonomous target regions such as visual cortex and subventricular zone, we identified putative targets involved in cell adhesion, chromatin structure and RNA processing. Thus, OTX2 retains important roles in choroid plexus function and brain homeostasis throughout life.

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