ABSTRACT: Transcriptional profiling reveals differential changes in the expression of oxytocin and CARTpt mRNAs in the nucleus accumbens and dorsal striatum of rats (striatum)
Project description:Transcriptional profiling reveals differential changes in the respective expression of oxytocin and CART mRNA levels in the nucleus accumbens and dorsal striatum of compulsive methamphetamine taking rats (nucleus accumbens)
Project description:Transcriptional profiling reveals differential changes in the expression of oxytocin and CARTpt mRNAs in the nucleus accumbens and dorsal striatum of rats
Project description:Using translational profiling we obtained RNA-Seq data from total RNA present in the dorsal striatum and accumbens nucleus of older Drd1-EGFP/Rpl10a (CP73) mice
Project description:Using translational profiling we obtained RNA-Seq data from total RNA present in the dorsal striatum and accumbens nucleus of older Drd1-EGFP/Rpl10a (CP73) mice
Project description:To identify distinct transcriptional patterns between the major subcortical dopamine targets commonly studied in addiction we studied differences in gene expression between the bed nucleus of the stria terminalis (BNST), nucleus accumbens (NAc), and dorsal striatum (dStr) using microarray analysis. We first tested for differences in expression of genes encoding transcripts for common neurotransmitter systems as well as calcium binding proteins routinely used in neuroanatomical delineation of brain regions. This a priori method revealed differential expression of corticotropin releasing hormone (Crh), the GABA transporter (Slc6a1), and prodynorphin (Pdyn) mRNAs as well as several others between. Using a Gene ontology tool, functional scoring analysis, and Ingenuity Pathway Analysis, we further identified several physiological pathways that were distinct among these brain regions. These two different analysis both identified calcium signaling, G-coupled protein receptor signaling, and adenylate cyclase-related signaling as significantly different among the BNST, NAc, and dStr. The results support other studies suggesting that crucial pathways involved in neurotransmission are distinct among the BNST, NAc, and dStr, and provide insight into the potential use of pharmacological agents that may target region-specific signaling pathways. Further, these studies provide a framework for future mouse-mouse comparisons of transcriptional profiles after behavioral/pharmacological manipulation. Genome-wide microarray was used to detect gene expression. Global functional profile, transcritional networks and canonical pathways were illustrated from the gene expression patterns. Experiment Overall Design: The genome-wide gene expression of mouse brain region bed nucleus of the stria terminalis, nucleus accumbens, and dorsal striatum were analyzed by Affymetrix Mouse430_2 chip. The expression and functional profiles were compared between these 3 tissues and cross-validated from independant data published before.
Project description:By high-throughput RNA-seq of heavy polysomal fractions, we report that rpS6 knockin mice, in which the 5 phosphorylatable serines have been replaced by alanines, show an alteration in the translation, but not transcription, of a subset of mRNAs in the nucleus accumbens (NAc) but not in the dorsal striatum (DStr). Gene Ontology analysis revealed that multiple dysregulated mRNAs are related to the mitochondria. Moreover, we described that rpS6 knockin mice also display an alteration in novelty-induced locomotion and synaptic plasticity.
