Post mortem human brain tissue comparison between HD patients and controls from 3 brain regions - cerebellum, frontal cortex [BA4, BA9] and caudate nucleus. Gene expression analysed using linear models from LIMMA package in Bioconductor suite.
Regional and cellular gene expression changes in human Huntington's disease brain.
No sample metadata fields
View SamplesHD R6/1 transgenic mouse line brain hemispheres dissected. RNA targets were created for transgenics and wildtypes at time points 18, 22 and 27 weeks. Profiles and data analysis performed using the Bioconductor software and linear model contrasts using LIMMA on RMA probeset summarys.
Brain gene expression correlates with changes in behavior in the R6/1 mouse model of Huntington's disease.
No sample metadata fields
View SamplesGlobal expression of the Arabidopsis transcriptional regulator SHOOT MERISTEMLESS (STM) in a 35S:STM-GR transgenic line was induced for 3 hours with dexamethasone (DEX) compared to mock-induced (DMSO) control. Additionally,to identify direct targets, plants were treated with the protein synthesis inhibitor cycloheximide (CHX) together with DEX, compared to CHX treatment alone.
No associated publication
Age, Specimen part, Compound
View SamplesThe Rad23/Rad4 protein complex plays a major role in DNA damage recognition during nucleotide excision repair (NER) in yeast. We recently showed that two distinct pathways contribute to efficient NER in yeast. The first operates independently of de novo protein synthesis and requires a nonproteolytic function of the 19S regulatory complex of the 26S proteasome and Rad23. The second pathway requires de novo protein synthesis, and relies on the activity of a newly identified E3 ubiquitin ligase that ubiquitinates Rad4 in response to UV. Surprisingly, we found that cells deleted of either Rad23 or Rad4 caused reduced Rad4 and Rad23 mRNA levels respectively. We considered the possibility of an unexpected role of Rad23 and Rad4 in regulating the expression of genes involved in the transcriptional response to DNA damage. Gene expression profiling has suggested that Rad23 and Rad4 may function as a complex to affect transcription of a small subset of genes in response to UV damage. To determine how Rad4 and Rad23 contribute to the regulation of these genes, we have examined the occupancy of Rad4/Rad23 in their promoter regions by chromatin immunoprecipitation (ChIP), both in the presence and absence of UV damage. Our preliminary ChIP data suggests that the Rad4/Rad23 complex regulates a set of genes in response to UV light.
UV induced ubiquitination of the yeast Rad4-Rad23 complex promotes survival by regulating cellular dNTP pools.
No sample metadata fields
View SamplesWe aimed to identify the gene network and pathway biology associated with neonatal sepsis by determining genome-wide alterations in host RNA in infected infants
Identification of a human neonatal immune-metabolic network associated with bacterial infection.
Sex, Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
No associated publication
Sex, Treatment
View SamplesThe Rad23/Rad4 protein complex plays a major role in DNA damage recognition during nucleotide excision repair (NER) in yeast. We recently showed that two distinct pathways contribute to efficient NER in yeast. The first operates independently of de novo protein synthesis and requires a nonproteolytic function of the 19S regulatory complex of the 26S proteasome and Rad23. The second pathway requires de novo protein synthesis, and relies on the activity of a newly identified Rad7-containing E3 ubiquitin ligase that ubiquitinates Rad4 in response to UV. Surprisingly, we found that cells deleted of either Rad23 or Rad4 caused reduced Rad4 and Rad23 mRNA levels respectively. We considered the possibility of an unexpected role of Rad23 and Rad4 in regulating the expression of genes involved in the transcriptional response to DNA damage. Gene expression profiling has suggested that Rad23 and Rad4 may function as a complex to affect transcription of a small subset of genes in response to UV damage. To determine how Rad4 and Rad23 contribute to the regulation of these genes, we have examined the occupancy of Rad4/Rad23 in their promoter regions by chromatin immunoprecipitation (ChIP), both in the presence and absence of UV damage. Our preliminary ChIP data suggests that the Rad4/Rad23 complex regulates a set of genes in response to UV light. We also proposed that the transcriptional regulatory activity of the Rad4-Rad23 complex required Rad4 ubiquitination. These arrays test this theory using the psocs mutant strain, which is unable to facilitate Rad4 ubiquitination after UV irradiation.
UV induced ubiquitination of the yeast Rad4-Rad23 complex promotes survival by regulating cellular dNTP pools.
Time
View SamplesTranscriptional profiles in the HdhQ150 mouse model of HD and wild-type litter mates at 6, 12 and 18 months
Longitudinal analysis of gene expression and behaviour in the HdhQ150 mouse model of Huntington's disease.
Sex, Age, Specimen part
View SamplesPrevious work has suggested that the imprinted gene Phlda2 regulates the signalling function of the placenta by modulating the size of the endocrine compartment. This study investigated the affect that Phlda2 mutant placenta has upon the brains of the wildtype dams carrying different placenta and consequently offspring.
Maternal care boosted by paternal imprinting in mammals.
Specimen part
View SamplesWe have performed a comprehensive transcriptional analysis of specific monocyte and macrophage (M) subsets during an acute self-resolving inflammatory insult. Following initial induction of acute inflammation, tissue resident (Resident) M are rapidly cleared from the inflammatory foci, only becoming recoverable as inflammation resolves. Monocytes are recruited to the inflammatory lesion where they differentiate into M. We term these monocyte-derived M inflammation-associated to distinguish them from Resident M which are present throughout the inflammatory response and can renew during the resolution of inflammation by proliferation. Comparative analysis of the Mo and M populations (both inflammation-associated and Resident M) identifies select genes expressed in subsets of inflammation-associated and Resident M that play important roles in the resolution of inflammation and/or for immunity, including molecules involved in antigen presentation, cell cycle and others associated with immaturity and M activation.
The transcription factor Gata6 links tissue macrophage phenotype and proliferative renewal.
Sex, Specimen part
View Samples