Project description:Gene expression profiling in C57BL/6J and A/J mouse inbred strains reveals gene networks specific for brain regions independent of genetic background Comparison of whole genome expression data of amygdala and hippocampus of both C57BL/6J and A/J mouse inbred strains using a network approach
Project description:Gene-profiling of Tregs across inbred strains. There is a wide inter-individual range in the frequency of FoxP3+ Treg cells, but little is known about the underlying genetic or epigenetic mechanisms. We explored this issue accross inbred strains of mice. During this study, we established the gene expression profiles of Treg cells from the various inbred strains of mice.
Project description:Variation in gene expression profiles was determined between mouse inbred strains in hindlimb muscle tissue. Strains under investigation were: C57Bl/6, C57Bl/10, CBA, DBA2, and BALB/c. Keywords: other
Project description:This study aimed to perform gene expression quantitative trait locus mapping (eQTL) in the livers of a panel of 36 laboratory inbred strains. Mice were dosed with a saline solution by oral gavage and sacrificed at 24 hours. Livers were removed at sacrifice, RNA was extracted and gene expression was assayed using the Agilent G4121A array. Keywords: eQTL, mouse, liver
Project description:To better understand the temporal dynamics of gene expression during normal murine lung development we characterized global gene expression at 26 time points in three common inbred strains of mice (A/J, C57BL/6J, and C3H/HeJ). The data set provides a unique resource for identifying patterns of gene expression changes during normal lung development and for investigating the developmental origins of respiratory disease. The transcriptional profiles generated for lung development in three inbred strains of the laboratory mouse revealed concordance with pre-natal stages of lung development defined by anatomy and morphology. The genomic data support the view that the postnatal alveolar development is composed of 4 distinct molecular stages. The data revealed strain specific differences in the expression of genes related to respiratory cell differentiation, pulmonary innervation, metabolic pathway interactions, and immune system function.
Project description:We employed RNA-sequencing to identify differentially expressed genes between two wild-derived inbred mouse strains. These strains exhibit high collateral blood vessel densities, but differ in widely in infarct volume following middle artery occlusion. This experiment helped facilitate identification of candidate loci underlying this differential response.
Project description:This SuperSeries is composed of the following subset Series:; GSE9441: The effect of sleep deprivation on gene expression in the brain and the liver of three inbred mouse strains; GSE9442: Molecular correlates of sleep deprivation in the brain of three inbred mouse strains in an around-the-clock experiment; GSE9443: Gene expression in brain Homer1a-expressing cells after sleep deprivation Experiment Overall Design: Refer to individual Series
Project description:Survey of gene expression in 7 brain regions at 6-8wks of age in 20 inbred strains of laboratory mice. Autism is a highly heritable neurodevelopmental disorder with no consistent neuropathological hallmarks, diagnosed through behavioral inventory rather than a biomarker. The genetic etiology of autism is complex and likely has a significant interaction with the environment. To investigate the molecular and genetic nature of autism, we modeled the core symptom of social deficits in inbred strains of mice. Using gene expression profiles and behavioral phenotyping relevant to social deficits, we have identified basic cellular functions that may be dysregulated in the brain in autism. Correlations between these two complex datasets indicate cell morphology, proliferation, and migration may be perturbed in disorders of altered social behavior. Furthermore, these data in the mouse show significant overlap with published expression profiling in lymphoblastoid lines from autistic individuals. Keywords: Comparison between inbred strains and brain regions.
Project description:Identifying sex differences in gene expression within the brain is critical for determining why multiple neurological and behavioral disorders differentially affect males and females. Several are more common or severe in males (e.g., autism and schizophrenia) or females (e.g., Alzheimer’s disease and depression). We analyzed transcriptomic data from the mouse hippocampus of six inbred strains (129S1/SvImJ, A/J, C57BL/6J, DBA/1J, DBA/2J and PWD/Ph), to provide a perspective on differences between male and female gene expression. Our data show that: 1) significant gene expression differences in males versus females varies substantially across the strains, 2) 12 genes exist that are differentially expressed across the inbred strains (termed core genes), and 3) there are >2,600 significantly differentially expressed genes (DEGs) among the strains (termed non-core genes). We found that DBA/2J uniquely has a substantial majority (89%) of DEGs that are more highly expressed in females than males; 129/SvImJ is the most strongly male-biased with a majority (69%) of DEGs that are more highly expressed in males. To gain insight into the sex-biased DEGs, we examined gene ontology, pathway and phenotype enrichment and found significant enrichment in phenotypes related to abnormal nervous system morphology and physiology, among others. In addition, several pathways are enriched significantly, including Alzheimer’s disease (AD), with 32 genes implicated in AD, 8 of which are male-biased. Three of the male-biased genes have been implicated in a neuroprotective role in AD. Our transcriptomic data provide new insight into understanding the possible genetic bases for sex-specific susceptibility and severity of brain disorders.