Brain region and sex specific transcriptome of peripubertal stress induced adult male mice showing escalated aggression and adult female mice with no signs of aggression.

ABSTRACT: Purpose: The goal of this study is to uncover the molecular basis of peripubertal stress induced aggressive behaviour and its sex differences focussing on brain region specific transcriptome profiling (RNA-seq) and validation by quantitative reverse transcription polymerase chain reaction (qRT–PCR) Methods: Hypothalamus (Hypo) and Prefrontal cortex (PFC) mRNA profiles of 90-day-old control adult male and female and PPS exposed escalated aggressive adult male (SEagg) mice and non aggressive adult female (SNagg) were sequenced on Illumina HiSeq 2500, in 3 biological replicates.The FASTQ sequencing reads were adapter-trimmed along with a minimum length cut-off of 50 bases using Prinseq-lite. The reads were aligned to mouse genome assembly using TopHat (v.2.0.11) followed by reference-based assembly using Cufflinks (v.2.2.1). Then differentially expressing transcripts were identified using Cuffdiff (v.2.2.1). qRT–PCR validation was performed using SYBR Green assays. Results:Hypo of SEagg males showed 49 differentially expressed genes (DEGs) amongst which 28 were down-regulated, 20 were up-regulated and 1 was expressed in SEagg males but not in control males. PFC of SEagg males showed 87 DEGs amongst which 57 were downregulated, 28 were upregulated and 2 were only expressed in SEagg males but not control males. SNagg females showed 684 DEGs in Hypo and 152 DEGs in PFC when compared to their respective control samples. Conclusions: We provide the first prefrontal cortex and hypothalamus specific transcriptome profiles of peripubertal stress (PPS) exposed, Balb/c adult male mice exhibiting escalated aggression and Balb/c adult female mice showing no signs of aggression.

ORGANISM(S): Mus musculus

PROVIDER: GSE199844 | GEO | 2022/11/02

REPOSITORIES: GEO