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Dnmt1 deletion in Hmx3-positive POA-derived interneurons [RNA-seq]

ABSTRACT: The proliferative niches in the subpallium generate a rich cellular variety fated for diverse telencephalic regions. The embryonic preoptic area (POA) represents one of these domains giving rise to the pool of cortical GABAergic interneurons and glial cells, in addition to striatal and residual POA cells. The migration from sites of origin within the subpallium to the distant targets like the cerebral cortex, accomplished by the adoption and maintenance of a particular migratory morphology, is a critical step during interneuron development, which seems to be regulated partially via DNA methylation-dependent gene expression. To identify genes that are altered by DNA methylation mediated by DNMT1 in POA-derived Hmx3-positive interneurons, we used an Hmx3-Cre/tdTomato/Dnmt1loxP mouse model and FAC-sorted the basal telencephalon at E16. RNA and MeDIP sequencing were performed. RNA data are assigned here.

ORGANISM(S): Mus musculus

PROVIDER: GSE146966 | GEO | 2021/03/09

REPOSITORIES: GEO

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Dnmt1 deletion in Hmx3-positive POA-derived interneurons [MeDIP-seq]

Project description:The proliferative niches in the subpallium generate a rich cellular variety fated for diverse telencephalic regions. The embryonic preoptic area (POA) represents one of these domains giving rise to the pool of cortical GABAergic interneurons and glial cells, in addition to striatal and residual POA cells. The migration from sites of origin within the subpallium to the distant targets like the cerebral cortex, accomplished by the adoption and maintenance of a particular migratory morphology, is a critical step during interneuron development, which seems to be regulated partially via DNA methylation-dependent gene expression. To identify genes that are altered by DNA methylation mediated by DNMT1 in POA-derived Hmx3-positive interneurons, we used an Hmx3-Cre/tdTomato/Dnmt1loxP mouse model and FAC-sorted the basal telencephalon at E16. RNA and MeDIP sequencing were performed. MeDIP data are assigned here.

2021-03-09 | GSE146967 | GEO

Dnmt1 deletion in PV-positive cortical interneurons of 6 month and 18 month old mice [RNA-seq]

Project description:The emerging role of epigenetic mechanisms like DNA methylation executed by DNA methyltransferases (DNMTs) in synaptic function irrevocably raises the question for the targeted subcellular processes and mechanisms. We here sequenced FAC-sorted PVergic interneurons of 6 month and 18month old PV-Cre/tdTomato/Dnmt1loxp wildtype and knockout mice and performed RNA-Seq.

2020-07-06 | GSE145025 | GEO

Dnmt1 deletion in PV-positive cortical interneurons of 6 month and 18 month old mice [meDIP-seq]

2020-07-06 | GSE145024 | GEO

Dnmt1 deletion in PV-positive cortical interneurons of 6 month and 18 month old mice

2020-07-06 | GSE145026 | GEO

Expression profile of adult mouse POA/BF regions

Project description:The adult mammalian brain is composed of distinct regions that have specialized roles. The BF/POA regions are thought to have an important role in the regulation of sleep/wake behavior. However, genetic markers of the responsible cells for the regulation of sleep/wake behavior are largely unknown. To identify the molecular markers of the BF/POA regions, we sampled the BF/POA regions and compared gene expression in the BF/POA regions with those of other brain regions which we previously reported in the BrainStars (B*) project, in which we sampled ~50 small brain regions, including sensory centers and centers for motion, time, memory, fear, and feeding. We sampled each region every 4 hours for 24 hours, and pooled the sample sets for DNA-microarray assays. We then used informatics to identify candidates for genes with high or low expression in the BF/POA regions. We used our findings to develop an integrated database (http://poabf.brainstars.org/) for exploring genome-wide expression in the adult mouse brain including the BF/POA regions.

2018-08-17 | GSE107500 | GEO

Dnmt1 deletion in Hmx3-positive POA-derived interneurons

Project description:Dnmt1 deletion in Hmx3-positive POA-derived interneurons

| PRJNA612519 | ENA

Developmental emergence of cortical neurogliaform cell diversity

Project description:GABAergic interneurons are key regulators of cortical circuit function. Among the dozens of reported transcriptionally distinct subtypes of cortical interneurons, neurogliaform cells (NGC) are unique: are recruited by long-range excitatory inputs and the primary source of slow cortical inhibition. Despite their functional importance, the developmental emergence and cellular diversity of NGCs remains unclear. Here, combining single-cell transcriptomics, genetic fate-mapping, electrophysiological morphological characterization, we reveal that discrete molecular subtypes of NGCs, with distinctive functional and anatomic profiles, populate the neocortex. Furthermore, we show that NGC subtypes emerge gradually through development, as incipient differential molecular signatures are apparent in Preoptic Area (POA) born NGC precursors. By identifying NGC developmentally-conserved transcriptional programs, we report that the transcription factor Tox2 constitutes an identity hallmark across NGC subtypes. Using CRISPR-Cas9-mediated genetic loss-of-function, we show that Tox2 is critical for NGC development: POA-born cells lacking Tox2 fail to differentiate into NGCs. Together, these results reveal that NGCs are born from a spatially restricted pool of Tox2+ POA precursors, after which intra-type diverging molecular programs are gradually acquired post-mitotically and result in functionally and molecularly discrete NGC cortical subtypes.

2023-06-30 | GSE225639 | GEO

Poa pratensis

Project description:Poa pratensis overview

| PRJNA183592 | ENA

Poa annua

Project description:Poa annua overview

| PRJNA435446 | ENA

RNASeq of cold-sensitive and cold-insensitive neurons from the pre-optic area of hypothalamus of mice

Project description:The preoptic area of the hypothalamus (POA) contains intrinsically warm and cold-sensitive neurons, which are thought to be critically involved in mammalian thermoregulation. However, the precise physiological roles and the molecular markers of the cold-sensitive POA neurons have not been determined yet. Here, we tackle this problem by performing calcium-imaging guided separation and collection of cold-sensitive and cold-insensitive dissociated neurons from the mouse POA, followed by RNASeq and differential transcriptomics of these cell populations.

2020-04-09 | GSE136396 | GEO

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