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Epigenomic profiling of mouse nucleus accumbens at single-cell resolution

ABSTRACT: Epigenomic profiling of mouse nucleus accumbens at single-cell resolution

PROVIDER: PRJNA973943 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24639564_1.fastq.gz	Fastqsanger.gz
	SRR24639564_2.fastq.gz	Fastqsanger.gz
	SRR24639565_1.fastq.gz	Fastqsanger.gz
	SRR24639565_2.fastq.gz	Fastqsanger.gz
	SRR24639566_1.fastq.gz	Fastqsanger.gz

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Epigenomic profiling of mouse nucleus accumbens at single-cell resolution

Project description:The nucleus accumbens (NAc) is a key brain region involved in reward processing and is linked to multiple neuropsychiatric conditions such as substance use disorder, depression, and chronic pain. Recent studies have begun to investigate persistent changes in NAc gene expression at a single-cell resolution, however, our understanding of the cellular heterogeneity of the NAc epigenomic landscape remains limited. In this study, we utilize single-nucleus assay for transposase-accessible chromatin using high-throughput sequencing (snATAC-seq) to map cell-type-specific differences in chromatin accessibility in the NAc. Our findings not only reveal the transcription factors and putative gene regulatory elements that may contribute to these cell-type-specific epigenomic differences but also provide a valuable resource for future studies investigating epigenomic changes that occur in neuropsychiatric disorders.

2023-05-18 | GSE232774 | GEO

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Translational profiling of hypothalamic and midbrain neurons that project to the nucleus accumbens.

Project description:Neuroanatomical methods enable high-resolution mapping of neural circuitry, but do not allow systematic molecular profiling of neurons based on their connectivity. Here, we report the development of a novel approach for molecularly profiling projective neurons. We show that ribosomes can be labeled with a camelid nanobody raised against GFP and that this system can be engineered to selectively capture translating mRNAs from cells expressing GFP. We generated a transgenic mouse encoding a nanobody-ribosomal protein fusion (Syn-NBL10) and used a retrograde virus (CAV) encoding GFP to immunoprecipitate ribosomes from projection neurons. This enabled us to profile neurons projecting to the nucleus accumbens. The current method provides a new means for profiling neurons based on their projections. Translating mRNAs immunoprecipitated from neurons projecting to the nucleus accumbens. Each Input and IP sample corrspond to a pooled group of 6 mice.

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Project description:This dataset contains single-nucleus RNA sequencing results from adult rat brain (nucleus accumbens) and serves as the basis for characterization of transcriptional response to cocaine (20mg/kg, intraperitoneal injection). The goal of this experiment was to define the transcriptional response to cocaine across distinct cell types in the nucleus accumbens. Single-cell sequencing was carried out on FACS-sorted nuclei isolated from these experiments using the 10X Genomics Chromium single cell sequencing platform.

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Adult nucleus accumbens single-nucleus RNA-seq dataset for "Distinct subpopulations of D1 medium spiny neurons exhibit unique transcriptional responsiveness to cocaine"

Project description:This dataset contains single-nucleus RNA sequencing results from adult rat brain (nucleus accumbens) and serves as the basis for characterization of transcriptional response to repeated cocaine injections (20mg/kg, intraperitoneal injection). The goal of this experiment was to define the transcriptional response to repeated cocaine across distinct cell types in the nucleus accumbens. Single-cell sequencing was carried out with FACS-sorted nuclei isolated from these experiments using the 10X Genomics Chromium single cell sequencing platform.

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Project description:Animal models provide opportunity to study neurobiological aspects of human alcoholism. Changes in gene expression have been implicated in mediating brain function, including reward system and addiction. The current study aimed to identify novel genes that may underlie ethanol preference. Microarray analysis comparing gene expression in nucleus accumbens (NAc), hippocampus (HP) and prefrontal medial cortex (mPFC) was performed in two rat strains selected for extreme levels of ethanol preference - Warsaw High Preferring (WHP) and Warsaw Low Preferring (WLP). The identified candidate genes may underlie differential ethanol preference in rat model of alcoholism. This is analysis of 18 RNA samples, including 9 technical replicates. Two strains of rats selected for extreme levels of ethanol preference (low preferring WLP and high preferring WHP) were compared. Three brain areas (nucleus accumbens, prefrontal medial cortex and hippocampus) were studied. For each brain area, 6 RNA samples (including 3 technical replicates) were analyzed. Each RNA sample consist of of equal amounts of total RNA from 3 male rats. Comparisons: Nucleus accumbens of WHP vs. Nucleus accumbens of WLP; Prefrontal medial cortex of WHP vs. Prefrontal medial cortex of WLP; Hippocampus of WHP vs. Hippocampus of WLP. 3 biological replicates in each comparison.

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Rat DNA methylation in the Nucleus Accumbens in Incubation of Cocaine Craving and treatments with DNA methylation modifying drugs

Project description:DNA methylation profiling of nucleus Accumbens of rats that self administered cocaine, were subjected to 30 withdrawal days, were treated with aCSF, RG108 or SAM and were subjected to extinction tests. The groups consist of: 1. Rats that self-administered cocaine for 10 days and that were subjected to a withdrawal period of 30 days, were injected in the nucleus accumbens with aCSF and were subjected to an extinction test for assessment of cue-induced cocaine-seeking behavior (aCSF) 2. Rats that self-administered cocaine for 10 days and that were subjected to a withdrawal period of 30 days, were injected in the nucleus accumbens with RG108 and were subjected to an extinction test for assessment of cue-induced cocaine-seeking behavior (RG108) 3. Rats that self-administered cocaine for 10 days and that were subjected to a withdrawal period of 30 days, were injected in the nucleus accumbens with SAM and were subjected to an extinction test for assessment of cue-induced cocaine-seeking behavior (SAM)

2015-02-27 | E-GEOD-66347 | biostudies-arrayexpress

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