Similar Datasets
Project description:We performed single-nuclei RNAseq of Brown Norway rat nucleus accumbens after a single injection of morphine or after morhpine self-administration
2022-09-20 | GSE171165 | GEO
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.
2023-01-15 | GSE222418 | GEO
Project description:This dataset contains single nucleus Assay for Transposase-Accessible Chromatin (ATAC) sequencing results from rat nucleus accumbens tissue. Rats received repeated cocaine injections (20mg/kg, intraperitoneal injection), or saline injections as a control. Single-nucleus ATAC-seq was carried out with FACS-sorted nuclei using the 10X Genomics Chromium single cell sequencing platform using the Chromium Next GEM Single Cell ATAC Kit v2.
2023-08-07 | GSE233754 | GEO
Project description:Total RNA-sequencing of FACs isolated nucleus accumbens somatostatin interneuron nuclei Somatostatin interneuron loss in multiple cortical brain regions has been observed postmortem in humans with several neuropsychiatric disorders and their loss is proposed to underlie some common pathological changes in circuit function across numerous syndromes. However, somatostatin interneurons in the nucleus accumbens (NAc), a key brain reward region, remain poorly understood due to the fact that these cells account for <1% of NAc neurons. Here, we used Flouresence activated cell sorting to isolate nuclei of somatostatin-expressing interneurons in the Nucleus Accumbens from individual SST-TLG498 reporter mice that express membrane bound EGFP-F specifically in somatostatin-expressing neurons. We then performed cell-type specific Total RNA-sequencing to characterize the entire transcriptome of NAc somatostatin interneurons after repeated exposure (7 days) to either saline or cocaine. We identified a wide variety of coding and non-coding transcripts that were expressed at high levels and were differentially expressed between saline and cocaine treated mice. Repeated cocaine administration induces transcriptome-wide changes in gene expression within NAc somatostatin interneurons, with particular regulation of transcripts related to neural plasticity. Our results identify alterations in NAc induced by cocaine in a sparse population of somatostatin interneurons, and illustrate the value of studying brain diseases using cell type-specific whole transcriptome RNA-sequencing to identify novel neurpathophysiology.
2018-07-03 | GSE116484 | GEO
Project description:Genetic association studies, pharmacological investigations and analysis of mice-lacking individual genes have made it clear that Cocaine administration and Withdrawal have a profound impact on multiple neurotransmitter systems. The GABAergic medium spiny neurons of the nucleus accumbens (NAc) exhibit changes in the expression of genes encoding receptors for glutamate and in the signaling pathways triggered by dopamine binding to G-protein-coupled dopamine receptors. Deep sequence analysis provides a sensitive, quantitative and global analysis of the effects of Cocaine on the NAc transcriptome. RNA prepared from the NAc of adult male mice receiving daily injections of Saline or Cocaine, or Cocaine followed by a period of Withdrawal, was used for high-throughput sequence analysis. Changes were validated by quantitative polymerase chain reaction or Western blot. On the basis of pathway analysis, a preponderance of the genes affected by Cocaine and Withdrawal was involved in the cadherin, heterotrimeric G-protein and Wnt signaling pathways. Distinct subsets of cadherins and protocadherins exhibited a sustained increase or decrease in expression. Sustained down-regulation of several heterotrimeric G-protein β- and γ-subunits was observed. In addition to altered expression of receptors for small molecule neurotransmitters, neuropeptides and endocannabinoids, changes in the expression of plasma membrane transporters and vesicular neurotransmitter transporters were also observed. The effects of chronic Cocaine and Withdrawal on the expression of genes essential to cholinergic, glutamatergic, GABAergic, peptidergic and endocannabinoid signaling are as profound as their effects on dopaminergic transmission. Simultaneous targeting of multiple Withdrawal-specific changes in gene expression may facilitate development of new therapeutic approaches that are better able to prevent relapse. High-throughput sequence analysis of RNA prepared from the nucleus accumbens of adult male mice receiving daily injections of Saline or Cocaine, or Cocaine followed by a period of Withdrawal. Nucleus accumbens libraries were sequenced in nine lanes (three technical replicates per sample) on an Illumina GAIIx using a 37-cycle paired-end sequencing protocol. Replicates were analyzed for intra-sample disparity and read data from all three lanes were then merged into one composite data file per sample; intra-sample coefficient of determination, R2 ≥ 0.98. The composite file was used for subsequent analyses.
2013-01-10 | E-GEOD-43410 | biostudies-arrayexpress
Project description:Prenatal exposure to infectious or inflammatory insults can increase the risk of neuropsychiatric disorders with neurodevelopmental components, including schizophrenia and autism. The molecular processes underlying this pathological association are only partially understood. Here, we implemented an unbiased genome-wide transcriptional profiling of the nucleus accumbens of mice exposed to prenatal infection on GD17 compared to control subjects in order to elucidate the long term molecular signature of late prenatal infection. We used microarray analysis to investigate the long lasting gene expression changes in a well-established mouse model that is based on maternal treatment with the viral mimic poly(I:C) during pregnancy C57BL/6 mice were treated with the synthetic viral mimetic poly(I:C) (5 mg/kg, i.v.) or control (saline, i.v.) solution on gestation day 17. Offspring were subjected to cognitive and behavioral testing in adulthood, and then whole genome gene expression analysis with Affymetrix Microarray and subsequent q-PCR validation were performed on the nucleus accumbens.
2016-03-01 | E-GEOD-77971 | biostudies-arrayexpress
Project description:Using ssRNA-seq, we examined the alteration of transcription profiles in the nucleus accumbens of methamphetamine-sensitized mice. Methamphetamine was a commonly abused psychostimulant. Repeated exposure to methamphetamine elicited long-lasting cellular and molecular changes, including the aberrant expression of coding and non-coding RNAs, which may involve in methamphetamine-induced locomotor sensitization and addiction.
2017-01-15 | E-MTAB-2843 | biostudies-arrayexpress
Project description:The goal of the study was to determine how 24-hour withdrawal from cocaine affects the expression profile of transcripts in the nucleus accumbens using genome-wide RNA-sequencing. 11-week old male C57/BL6 mice were injected mice intraperitoneally (IP) with saline (0.9%) or cocaine (20 mg/kg dissolved in 0.9% saline) for 7-days consecutive days, and 24-hours after the last injection, NAc tissue was dissected. Mice were housed in group of 5 mice per cage, and all mice in a cage were injected with either saline or cocaine and thus there was no counter-balancing between groups.
2016-01-27 | GSE76868 | GEO
Project description:Canabinoid exposure during adolescence alters the rewarding properties of drugs of abuse by mechanisms that are not fully understood. The nucleus accumbens is a key node of the circuit mediating the rewarding effects of most drugs. Here, we present data on the differential gene expression in the nucleus accumbens shell in male and female Wistar rats (postnatal day 90) after exposure to THC (3 mg/kg i.p.) or vehicle (ethanol:cremophor:saline; 1:1:18; 2 mL/kg i.p.) during adolescence (postnatal day 28 to postnatal day 44; injections on alternate days). There were 96 DEGs in THC-males compared to VEH-males and 87 DEGs in the females’ comparison. Only nine of these DEGs were present in both the THC vs. VEH comparison in both sexes. Our results suggest that THC exposure during adolescence affects several families of genes that have important functions for brain development, behavior and synaptic plasticity and could explain, at least in part, the complex behavioral phenotype observed in adult individuals with exposure to cannabinoids during adolescence.
2020-09-19 | GSE158188 | GEO
Project description:Prior research demonstrated that environmental enrichment creates individual differences in behavior leading to a protective addiction phenotype in rats. Understanding the mechanisms underlying this phenotype will guide selection of targets for much-needed novel pharmacotherapeutics. The current study investigates basal differences in proteome expression in the nucleus accumbens of enriched and isolated rats and the proteomic response to cocaine self-administration using a liquid chromatography mass spectrometry (LCMS) technique to quantify 1917 proteins. Results of complementary Ingenuity Pathways Analyses (IPA) and gene set enrichment analyses (GSEA) demonstrate that cocaine increases vesicular transporters for dopamine and glutamate, as well as increasing proteins in the RhoA pathway. Further, cocaine regulates proteins related to ERK, CREB and AKT signaling. Environmental enrichment altered expression of a large number of proteins with diverse functions, including mood disorders, energy production, ubiquitination, splicing, transport, kinases and neurodegenerative diseases. Most of the biological functions and pathways listed above were also identified in the Cocaine X Enrichment interaction analysis, providing clear evidence that enriched and isolated rats respond quite differently to cocaine exposure. The overall impression of the current results is that enriched saline-administering rats have a unique proteomic complement compared to enriched cocaine-administering rats as well as saline and cocaine-taking isolated rats. These results identify possible mechanisms of the protective phenotype and provide fertile soil for developing novel pharmacotherapeutics.
2014-07-22 | PXD000990 | Pride