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Adult male prairie vole nucleus accumbens RNAseq dataset for "Prolonged partner separation erodes nucleus accumbens transcriptional signatures of pair bonding in male prairie voles."

ABSTRACT: This dataset contains RNA sequencing results from adult male prairie voles that were in either opposite-sex or same-sex pairs that were subsequently either separated from or remained paired with their partner for either 48 hours or 4 weeks prior to collecting nucleus accumbens tissue. The goal of this experiment was to determine the nucleus accumbens transcriptional response specific to separation from an opposite-sex partner. RNA sequencing was done on polyA enriched transcripts using Illumina single-end sequencing. Samples from 3 groups were from a Ribo-seq protocol using a virally delievered, vole optimized Translating Ribosome Affinity Purification construct (Heiman et al., 2008). These samples contain files for both the input fraction and the pulldown fraction (denoted with a _P suffix).

ORGANISM(S): Microtus ochrogaster

PROVIDER: GSE192661 | GEO | 2023/04/17

REPOSITORIES: GEO

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Transcriptomic regulations underlying pair-bond formation and maintenance in the socially monogamous male and female prairie vole

Project description:Background: The ability to form enduring social bonds is characteristic of human nature and as a result, impairments in social affiliation are central features of severe neuropsychiatric disorders including autism spectrum disorders and schizophrenia. Due to its ability to form long-term pair-bonds, the socially monogamous prairie vole (Microtus ochrogaster) has emerged as an excellent model to study the neurobiology of social attachment. Despite the enduring nature of the bond, however, surprisingly few genes have been implicated in the pair-bonding process in either sex. Results: Using RNA-sequencing, we aimed at identifying the transcriptomic regulations in the nucleus accumbens (NAc) underlying the formation and maintenance of a pair-bond in male and female prairie voles and found sex-specific response patterns despite similar behavioral indicators of pair-bond establishment. Indeed, 24 hrs of cohabitation with an opposite-sex partner induced widespread transcriptomic changes that remained sustained to some extent in females after 3 weeks, but returned to baseline before a second set of regulations in males. This led to a highly sexually-biased NAc transcriptome in the later phase of the bond related to processes such as neurotransmission, protein turnover, and DNA transcription. In particular, we found sex-specific alterations of mitochondrial dynamics following cohabitation, with a shift towards fission in males. Conclusions: In addition to identifying the genes, networks, and pathways involved in the pair-bonding process in the NAc, our work illustrates the vast extent of sex differences in the molecular mechanisms underlying pair-bonding in prairie voles, and paves the way to further our understanding of the complex social bonding process.

2023-04-28 | GSE150080 | GEO

Cocaine self-administration induces divergent protein expression in the nucleus accumbens of male and female mice to eliminate basal sex differences

Project description:Substance use disorder (SUD) is a chronic neuropsychiatric condition characterized by long-lasting alterations in the neural circuitry regulating reward and motivation. Substantial work has focused on characterizing the molecular substrates which underlie these persistent changes in neural function and behavior; however, this work has overwhelmingly focused on male subjects, despite mounting clinical and preclinical evidence that females demonstrate dissimilar progression to SUD and responsivity to drugs of abuse, such as cocaine. Here, we show that sex is a critical biological variable that defines drug-induced plasticity in the NAc. Using quantitative mass spectrometry, we assessed the protein expression patterns altered by cocaine self-administration and demonstrate unique molecular profiles between males and females. We show that 1. Cocaine self-administration induces non-overlapping protein expression patterns in males and females and 2. Cocaine specifically acts on baseline sexual dimorphisms to exert these effects. Critically, we find that cocaine administration blunts not only basal sex-differences in the accumbens proteome, but also the pre-existing sex differences in behavior for natural rewards. Together, these data suggest that chronic cocaine is capable of rewriting baseline proteomic function to maintain cocaine-specific behaviors.

2021-09-09 | PXD022832 | Pride

Sex differences in the ventral tegmental area and nucleus accumbens proteome at baseline and following nicotine exposure

Project description:Sex differences in behaviors relevant to nicotine addiction have been observed in rodent models and human subjects. Behavioral, imaging and epidemiological studies also suggest underlying sex differences in mesolimbic dopamine signaling pathways. In this study we evaluated the proteome in the ventral tegmental area (VTA) and nucleus accumbens (NAc) shell in male and female mice. Experimental groups included two mouse strains (C3H/HeJ and C57BL/6J) at baseline, a sub-chronic, rewarding regimen of nicotine in C3H/HeJ mice, and chronic nicotine administration and withdrawal in C57BL/6J mice. Isobaric labeling with a TMT 10-plex system, sample fractionation, and tandem mass spectrometry were used to quantify changes in protein abundance. Similar or greater numbers of differentially regulated proteins were found between sexes at baseline in C3H/HeJ or C57BL/6J mice than within sexes following their respective regimen of nicotine administration. Despite differences by sex, strain, and nicotine exposure parameters, glial fibrillary acidic protein (GFAP) and dopamine and cAMP-regulated phosphoprotein of 32 kDa (DARPP-32, Ppp1r1b) were repeatedly identified as significantly altered proteins, especially in the VTA. Further, network analyses showed sex- and nicotine-dependent regulation of a number of signaling pathways, including dopaminergic signaling. Sub-chronic nicotine exposure in female mice increased proteins related to dopaminergic signaling in the NAc shell but decreased them in the VTA, whereas the opposite pattern was observed in male mice. In contrast, dopaminergic signaling pathways were similarly upregulated in both male and female VTA after chronic nicotine and withdrawal. Overall, this study identifies significant sex differences in the proteome of the mesolimbic system, at baseline and after nicotine reward or withdrawal, which may help explain differential trajectories and susceptibility to nicotine addiction in males and females.

2021-06-28 | PXD023859 | Pride

Single nucleus RNA-seq of rat nucleus accumbens

Project description:Single nucleus RNA-seq of nucleus accumbens from male Brown Norway rats after a single acute or repeated saline injections

2024-08-28 | GSE263307 | GEO

Male specific impact of parental care on gene expression in nucleus accumbens

Project description:Mammalian infants depend on parental care for survival, with numerous consequences for their behavioral development. We investigated the epigenetic and neurodevelopmental mechanisms mediating the impact of early parental care on social behavior development in prairie voles. We find widespread male specific differential expression of genes related to synaptic transmission and autism in the nucleus accumbens.

2023-07-31 | GSE229256 | GEO

Oxytocin in the nucleus accumbens shell reverses CRFR2-evoked passive stress-coping after partner loss in monogamous male prairie voles.

Project description:Loss of a partner can have severe effects on mental health. Here we explore the neural mechanisms underlying increased passive stress-coping, indicative of depressive-like behavior, following the loss of the female partner in the monogamous male prairie vole. We demonstrate that corticotropin-releasing factor receptor 2 (CRFR2) in the nucleus accumbens shell mediates social loss-induced passive coping. Further, we show that partner loss compromises the oxytocin system through multiple mechanisms. Finally, we provide evidence for an interaction of the CRFR2 and oxytocin systems in mediating the emotional consequences of partner loss. Our results suggest that chronic activation of CRFR2 and suppression of striatal oxytocin signaling following partner loss result in an aversive emotional state that may share underlying mechanisms with bereavement. We propose that the suppression of oxytocin signaling is likely adaptive during short separations to encourage reunion with the partner and may have evolved to maintain long-term partnerships. Additionally, therapeutic strategies targeting these systems should be considered for treatment of social loss-mediated depression.

| S-EPMC4698175 | biostudies-literature

Sex Differences in Nucleus Accumbens Transcriptome Profiles Associated with Susceptibility versus Resilience to Subchronic Variable Stress

Project description:Depression and anxiety disorders are more prevalent in females, but the majority of research in animal models, the first step in finding new treatments, has focused predominantly on males. Here we report that exposure to subchronic variable stress (SCVS) induces depression-associated behaviors in female mice, whereas males are resilient as they do not develop these behavioral abnormalities. In concert with these different behavioral responses, transcriptional analysis of nucleus accumbens (NAc), a major brain reward region, by use of RNA sequencing (RNA-seq) revealed markedly different patterns of stress regulation of gene expression between the sexes. Among the genes displaying sex differences was DNA methyltransferase 3a (Dnmt3a), which shows a greater induction in females after SCVS. Interestingly, Dnmt3a expression levels were increased in the NAc of depressed humans, an effect seen in both males and females. Local overexpression of Dnmt3a in NAc rendered male mice more susceptible to SCVS, whereas Dnmt3a knock-out in this region rendered females more resilient, directly implicating this gene in stress responses. Associated with this enhanced resilience of female mice upon NAc knock-out of Dnmt3a was a partial shift of the NAc female transcriptome toward the male pattern after SCVS. These data indicate that males and females undergo different patterns of transcriptional regulation in response to stress and that a DNA methyltransferase in NAc contributes to sex differences in stress vulnerability. mRNA profiles of sex-specific in stress response were generated in the Nucleus Accumbens for 3 female control mice, 3 male control mice, 3 stressed female mice, 3 stressed male mice. Cre-mediated Dnmt3a knock-out was performed on stressed mice, with 3 males and 3 females expressing control GFP and 3 males and 3 females expressing CRE/GFP.

2016-08-04 | E-GEOD-85136 | biostudies-arrayexpress

Expression data from adult mouse Nucleus Accumbens following prenatal infection

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

Integrative analysis of sex-specific microRNA networks following stress in mouse nucleus accumbens

Project description:Adult women are twice as likely as men to suffer from affective and anxiety disorders, although the mechanisms underlying heightened female stress susceptibility are incompletely understood. Recent findings in mouse Nucleus Accumbens (NAc) suggest a role for DNA methyltransferase-driven sex differences in genome-wide transcriptional profiles. However, the role of another epigenetic process—microRNA (miR) regulation—has yet to be explored. We exposed male and female mice to Subchronic Variable Stress (SCVS), a stress paradigm that produces depression-like behavior in female, but not male, mice, and performed next-generation mRNA and miR sequencing on NAc tissue. We applied a combination of differential expression, miR-mRNA network and functional enrichment analyses to characterize the transcriptional and post-transcriptional landscape of sex differences in NAc stress response. We find that male and female mice exhibit largely non-overlapping miR and mRNA profiles following SCVS. The two sexes also show enrichment of different molecular pathways and functions. Collectively, our results suggest that males and females mount fundamentally different transcriptional and post-transcriptional responses to SCVS and engage sex-specific molecular processes following stress. These findings have implications for the pathophysiology and treatment of stress-related disorders in women.

2017-02-09 | GSE90962 | GEO

Transcriptomic analysis of prefrontal medial cortex, hippocampus and nucleus accumbens of alcohol-preferring and nonpreferring rats

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.

2015-01-17 | E-GEOD-65064 | biostudies-arrayexpress

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