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Selective oxytocin receptor activation prevents prefrontal circuit dysfunction and social behavioral alterations in response to chronic prefrontal cortex activation in rats

ABSTRACT: Selective oxytocin receptor activation prevents prefrontal circuit dysfunction and social behavioral alterations in response to chronic prefrontal cortex activation in rats

PROVIDER: PRJNA1034095 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26618200_1.fastq.gz	Fastqsanger.gz
	SRR26618200_2.fastq.gz	Fastqsanger.gz
	SRR26618201_1.fastq.gz	Fastqsanger.gz
	SRR26618201_2.fastq.gz	Fastqsanger.gz
	SRR26618202_1.fastq.gz	Fastqsanger.gz

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Selective oxytocin receptor activation prevents prefrontal circuit dysfunction and social behavioral alterations in response to chronic prefrontal cortex activation in rats

Project description:Social behavioral changes are a hallmark of several neurodevelopmental and neuropsychiatric conditions, nevertheless the underlying neural substrates of such dysfunction remain poorly understood. Building evidence points to the prefrontal cortex (PFC) as one of the key brain regions that orchestrates social behavior. We used this concept with the aim to develop a translational rat model of social-circuit dysfunction, the chronic PFC activation model (CPA). Chemogenetic designer receptor hM3Dq was used to induce chronic activation of the PFC over 10 days, and the behavioral and electrophysiological signatures of prolonged PFC hyperactivity were evaluated. To test the sensitivity of this model to pharmacological interventions on longer timescales, and validate its translational potential, the rats were treated with our novel highly selective oxytocin receptor (OXTR) agonist RO6958375, which is not activating the related vasopressin V1a receptor. CPA rats showed reduced sociability in the three-chamber sociability test, and a concomitant decrease in neuronal excitability and synaptic transmission within the PFC as measured by electrophysiological recordings in acute slice preparation. Sub-chronic treatment with a low dose of the novel OXTR agonist following CPA interferes with the emergence of PFC circuit dysfunction, abnormal social behavior and specific transcriptomic changes. These results demonstrate that sustained PFC hyperactivity modifies circuit characteristics and social behaviors in ways that can be modulated by selective OXTR activation and that this model may be used to understand the circuit recruitment of prosocial therapies in drug discovery.

2023-11-05 | GSE246666 | GEO

Selective oxytocin receptor activation prevents prefrontal circuit dysfunction and social behavioral alterations in response to chronic prefrontal cortex activation in male rats.

Project description:IntroductionSocial behavioral changes are a hallmark of several neurodevelopmental and neuropsychiatric conditions, nevertheless the underlying neural substrates of such dysfunction remain poorly understood. Building evidence points to the prefrontal cortex (PFC) as one of the key brain regions that orchestrates social behavior. We used this concept with the aim to develop a translational rat model of social-circuit dysfunction, the chronic PFC activation model (CPA).MethodsChemogenetic designer receptor hM3Dq was used to induce chronic activation of the PFC over 10 days, and the behavioral and electrophysiological signatures of prolonged PFC hyperactivity were evaluated. To test the sensitivity of this model to pharmacological interventions on longer timescales, and validate its translational potential, the rats were treated with our novel highly selective oxytocin receptor (OXTR) agonist RO6958375, which is not activating the related vasopressin V1a receptor.ResultsCPA rats showed reduced sociability in the three-chamber sociability test, and a concomitant decrease in neuronal excitability and synaptic transmission within the PFC as measured by electrophysiological recordings in acute slice preparation. Sub-chronic treatment with a low dose of the novel OXTR agonist following CPA interferes with the emergence of PFC circuit dysfunction, abnormal social behavior and specific transcriptomic changes.DiscussionThese results demonstrate that sustained PFC hyperactivity modifies circuit characteristics and social behaviors in ways that can be modulated by selective OXTR activation and that this model may be used to understand the circuit recruitment of prosocial therapies in drug discovery.

| S-EPMC10745491 | biostudies-literature

Transcriptomic changes in the medial prefrontal cortex of juvenile rat offspring after induced birth with oxytocin

Project description:We report changes in the medial prefrontal cortical transcriptome of male and female rat offspring after induced birth with oxytocin using RNA-seq analysis.

2023-04-05 | GSE228913 | GEO

Genes that were altered after chemogenetic activation of endogenous oxytocin in the dorsal horn

Project description:Purpose: RNAseq analysis was carried out to investigate the alterd genes by chemogenetic activation of endogenous oxytocin in the superficial layer (laminae I-II) and deep layer (laminae III-VI) of the dorsal horn. Methods: At 120 min after the s.c. administration of Saline or CNO (1 mg/kg) (n=3, each), adult male oxytocin-hM3Dq-mCherry transgenic rats were decapitated immediately without being anesthetized. Spinal cords specimens including laminae I-II and III-VI were collected separately. Results: 254 genes in the laminae I-II, and 191 genes in the laminae III-VI of the dorsal horn were significantly altered after chemogenetic activation of endogenous oxytocin.

2022-09-07 | GSE210528 | GEO

Rescue of oxytocin response and social behavior in a rodent model of autism

Project description:One of the most fundamental challenges in developing treatments for autism-spectrum disorders is the heterogeneity of the condition. More than one hundred genetic mutations confer high risk for autism, with each individual mutation accounting for only a small fraction of autism cases. Subsets of risk genes can be grouped into functionally-related pathways, most prominently synaptic proteins, translational regulation, and chromatin modifications. To possibly circumvent this genetic complexity, recent therapeutic strategies have focused on the neuropeptides oxytocin and vasopressin which regulate aspects of social behavior in mammals. However, whether genetic risk factors might predispose to autism due to modification of oxytocinergic signaling remains largely unknown. Here, we report that an autism-associated mutation in the synaptic adhesion molecule neuroligin-3 (Nlgn3) results in impaired oxytocin signaling in dopaminergic neurons and in altered social novelty responses in mice. Surprisingly, loss of Nlgn3 is accompanied by a disruption of translation homeostasis in the ventral tegmental area. Treatment of Nlgn3KO mice with a novel, highly specific, brain-penetrant inhibitor of MAP-kinase interacting kinases resets mRNA translation and restores oxytocin and social novelty responses. Thus, this work identifies an unexpected convergence between the genetic autism risk factor Nlgn3, translational regulation, and oxytocinergic signaling. Focus on such common core plasticity elements might provide a pragmatic approach to reduce the heterogeneity of autism phenotypes. Ultimately, this would allow for mechanism-based stratification of patient populations to increase the success of therapeutic interventions.

2020-04-27 | PXD018808 | Pride

Selective Vulnerability of Parvocellular Oxytocin Neuron in Social Dysfunction

Project description:Despite the rapid progress in dissecting neural circuits for social behaviors, it remains unknown whether specific neural cell types are selectively vulnerable in social dysfunction cases often associated with neurodevelopmental disorders. Here, employing a single-cell transcriptome analysis in mice, we show that an embryonic disturbance known to induce social dysfunction preferentially impairs gene expressions crucial for neural functions in parvocellular oxytocin (OT) neurons—a subtype linked to social rewards—while neighboring cell types experience a lesser impact. Chemogenetic stimulation of OT neurons at the neonatal stage ameliorated social deficits, concomitant with a cell-type-specific sustained recovery of the pivotal gene expressions. Our data illuminates the transcriptomic selective vulnerability within the hypothalamic social behavioral center, offering a potential therapeutic target through specific neonatal neurostimulation.

2023-12-05 | GSE245555 | GEO

Functional Involvement of Septal miR-132 in Extinction and Oxytocin-mediated Reversal of Social Fear

Project description:Social interactions are critical components for the survival of mammalian biology and evolution. Dysregulation of social behavior often leads to psychopathologies such as social anxiety disorder, which is characterized by an intense fear and avoidance of social situations. Using the social fear conditioning (SFC) paradigm, we analyzed expression levels of miR-132-3p and miR-124-3p within the septum, a brain region essential for social behavior and fear, after acquisition and extinction of social fear. Functional in vivo approaches using pharmacology, functional inhibition of miR-132-3p, viral miR-132 overexpression and shRNA-mediated knockdown of miR-132-3p within oxytocin receptor positive neurons confirmed septal miR-132-3p to be involved in social fear extinction and the oxytocin-mediated reversal of social fear. Moreover, Argonaute-RNA-co-immunoprecipitation-microarray analysis and further target mRNA quantification, depicted growth differentiation factor-5 (GDF-5) to be involved in miR-132-3p-mediated regulation of social fear extinction. Local application of GDF-5 resulted in impaired social fear extinction, an effect which seems to be mediated by miR-132-3p. In summary, we show that septal miR-132-3p is functionally involved in social fear extinction learning and oxytocin-mediated reversal of social fear.

2023-11-08 | GSE211449 | GEO

Selective Vulnerability of Parvocellular Oxytocin Neuron in Social Dysfunction

Project description:Selective Vulnerability of Parvocellular Oxytocin Neuron in Social Dysfunction

| PRJNA1028986 | ENA

Transcriptomic changes in the medial prefrontal cortex of juvenile rat offspring after induced birth with oxytocin

Project description:Transcriptomic changes in the medial prefrontal cortex of juvenile rat offspring after induced birth with oxytocin

| PRJNA952158 | ENA

Social defeat effect on mice prefrontal cortex

Project description:Behavioral analysis confirmed that the 14-day social defeat sessions resulted in induction of depressive-like states measured in social interaction and light/dark tests. The combined data show that stress-induced depressive states are associated with molecular and structural changes that demyelinate the prefrontal cortex.

2017-06-12 | GSE84572 | GEO

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