The influence of early life stress on social behavior and transcriptome in the prefrontal cortex.
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ABSTRACT:
PROVIDER: PRJNA746344 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR15128332_1.fastq.gz | Fastqsanger.gz | |||
| SRR15128332_2.fastq.gz | Fastqsanger.gz | |||
| SRR15128333_1.fastq.gz | Fastqsanger.gz | |||
| SRR15128333_2.fastq.gz | Fastqsanger.gz | |||
| SRR15128334_1.fastq.gz | Fastqsanger.gz |
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Project description:Gene expression profiling was carried out on prefrontal cortex mRNA samples collected from 10 animals subject to repeated social threat (pooled into 2 groups of 5) and 10 animals subject to non-threatening control conditions (pooled into 2 groups of 5). The primary research question is whether gene expression differs in prefrontal cortex tissue from animals exposed to social threat vs non-threatening control conditions. Keywords: Risk prediction RNA from 5 mice/sample was pooled to generate 4 total samples: 2 from mice subject to repeated social threat, and 2 from control mice.
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Project description:The neurobiological origins of social behaviors are incompletely understood. Here we utilized synthetic biology approaches to reprogram the function of ZFP189, a transcription factor whose expression and function in rodent prefrontal cortex was previously demonstrated to be protective against stress-induced social deficits. We created novel synthetic ZFP189 transcription factors including ZFP189VPR, which activates the transcription of target genes and therefore exerts opposite functional control from the endogenous, transcriptionally repressive ZFP189WT. Following viral delivery of these synthetic ZFP189 transcription factors to mouse prefrontal cortex, we observe that ZFP189-mediated transcriptional control promotes mature dendritic spine morphology on transduced pyramidal neurons. Interestingly, inversion of ZFP189-mediated transcription in this brain area, achieved by viral delivery of synthetic ZFP189VPR, precipitates social behavioral deficits in terms of social interaction, motivation, and the cognition necessary for the maintenance of social hierarchy, without other observable behavioral deficits. RNA sequencing of virally manipulated prefrontal cortex tissues reveals that ZFP189 transcription factors of opposing regulatory function have opposite influence on the expression of genetic transposable elements as well as genes that participate in adaptive immune functions. Collectively, this work reveals that ZFP189 function in the prefrontal cortex coordinates structural and transcriptional neuroadaptations necessary for complex social behaviors, and does so by regulating transposable element-rich regions of DNA to control the expression of immune-related genes. Given the evidence for a co-evolution of social behavior and the brain immune response, we posit that ZFP189 may have evolved to augment brain transposon-associated immune function as a way of enhancing an animal’s capacity for functioning in social groups.
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Project description:Early-life stress has been linked to multiple neurodevelopmental and neuropsychiatric deficits. Our previous studies have linked maternal presence/absence from the nest in developing rat pups to changes in prefrontal cortex activity. Furthermore, we have shown that these changes are modulated by serotonergic signaling. Here we test whether changes in prefrontal cortex activity during early-life affect the developing cortex leading to behavioral alterations in the adult. We show that inhibiting the prefrontal cortex of mouse pups leads to cognitive deficits in the adult comparable to those seen following maternal separation. Moreover, we show that activating the prefrontal cortex during maternal separation can prevent these behavioral deficits. To test how maternal separation affects the transcriptional profile of the prefrontal cortex we performed single-nucleus RNA sequencing. Maternal separation lead to differential gene expression almost exclusively in inhibitory neurons. Among others, we found changes in GABAergic and serotonergic pathways in these interneurons. Interestingly, both maternal separation and early-life prefrontal cortex inhibition led to changes in physiological responses in prefrontal activity to GABAergic and serotonergic antagonists that were similar to the responses of more immature brains. Prefrontal activation during maternal separation prevented these changes. These data point to a crucial role of prefrontal cortex activity during early-life in behavioral expression in adulthood
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Project description:In order to better understand the effects of social stress on the prefrontal cortex, we investigated gene expression in mice subjected to acute and repeated social encounters of different duration using microarrays. The observed up-regulation of genes associated with vascular system and brain injury suggests that stressful social encounters may affect brain function through the stress-induced dysfunction of the vascular system. We studied gene expression profiles of prefrontal cortices of male mice subjected to social stress of different durations: Comparisons included: acute stress (24 hours after single social stress episode) vs. acute control (unstressed), stress-8 days vs. control-8 days, stress-13 days vs. control-13 days, stress-13 days+5 days of rest vs. control-13 days+5 days of rest. For each comparison, we analyzed 3 biological replicates per group. Two of out of three biological replicates were further replicated in dye swap (final dye swap failed due to problem during microarray hybridization). Each biological replicate consisted of equal amounts of total RNA from 3 mice subjected to the same experimental condition.
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