12 C57BL/6 mice were infected orogastrically with the H. pylori strain SS1. After 6 and 12 months, 3 non-infected and 3 infected mice were sacrificed and stomachs isolated. Gastric tissues were disaggregated and total RNA were isolated by TRIzol extraction and then purified on RNeasy minicolumns. After synthesis of the first cDNA strand (In vitrogen), the double-stranded cDNA was obtained and used to produce biotin-labeled cRNA (Enzo Diagnostic). FRagmented cRNA was hybridized to GeneChip Mouse expression array 430A (Affymetrix).
Interferon gamma-signature transcript profiling and IL-23 upregulation in response to Helicobacter pylori infection.
Sex, Age, Specimen part, Disease, Subject, Time
View SamplesAssessment of mRNA expression levels in fat biopsies from subcutaneous adipose tissue from unrelated individuals.
A systems genetics approach implicates USF1, FADS3, and other causal candidate genes for familial combined hyperlipidemia.
Specimen part
View SamplesOverexpression of USF1 in HEK293T cells in vitro to ascertain the genes downstream of USF1. Will identify direct targets as well as indirect targets of USF1.
A systems genetics approach implicates USF1, FADS3, and other causal candidate genes for familial combined hyperlipidemia.
Cell line
View SamplesWe report the role of SmE1 protein in the control of Arabidopsis development and tolerance to abiotic stresses. SmE1 controls gene expression reprogramming at the post-transcriptional level by promoting the splicing of pre-mRNA. This function is selectively achieve over selected transcripts depending on the stimulus nature. Overall design: Transcriptomic profiling through RNAseq of Col-0 and sme1-1 plants under control conditions or exposed to low temperatures (4ºC, 24h)
Arabidopsis SME1 Regulates Plant Development and Response to Abiotic Stress by Determining Spliceosome Activity Specificity.
Specimen part, Subject
View SamplesAnalysis of cervical carcinomas and cervical cell lines privides insight into gene expression profiling in mexican women
Krüppel Like Factors Family Expression in Cervical Cancer Cells.
Specimen part, Cell line
View SamplesDifferential gene expression profiling in KMT2D-depleted MIA PaCa-2 cells was performed using Human Genome U133 Plus 2.0 Array
Lysine methyltransferase 2D regulates pancreatic carcinogenesis through metabolic reprogramming.
Treatment
View SamplesAssessment of mRNA expression levels in fat biopsies from subcutaneous adipose tissue from unrelated individuals.
Galanin preproprotein is associated with elevated plasma triglycerides.
No sample metadata fields
View SamplesEffects of aneuploidy on gene expression in Arabidopsis thaliana containing extra copies of chromosome 5.
Effects of aneuploidy on genome structure, expression, and interphase organization in Arabidopsis thaliana.
Specimen part, Subject
View SamplesThe Wnt signaling pathway is deregulated in over 90% of human colorectal cancers. Catenin, the central signal transducer of the Wnt pathway, can directly modulate gene expression by interacting with transcription factors of the TCF/LEF-family. In the present study we investigate the role of Wnt signaling in the homeostasis of intestinal epithelium using tissue-specific, inducible beta-catenin gene ablation in adult mice. Block of Wnt/beta-catenin signaling resulted in rapid loss of transient-amplifying cells and crypt structures. Importantly, intestinal stem cells were induced to terminally differentiate upon deletion of beta-catenin resulting in a complete block of intestinal homeostasis and fatal loss of intestinal function. Transcriptional profiling of mutant crypt mRNA isolated by laser capture micro dissection confirmed those observations and allowed to identify genes potentially responsible for the functional preservation of intestinal stem cells.
Wnt/beta-catenin is essential for intestinal homeostasis and maintenance of intestinal stem cells.
No sample metadata fields
View SamplesIdentification of Hox gene downstream genes at embryonic stages 11 and 12<br></br><br></br>Functional diversification of body parts is dependent on the formation of specialized structures along the various body axes. In animals, region-specific morphogenesis along the anterior-posterior axis is controlled by a group of conserved transcription factors encoded by the Hox genes. Although it has long been assumed that Hox proteins carry out their function by regulating distinct sets of downstream genes, only a small number of such genes have been found, with very few having direct roles in controlling cellular behavior. We have quantitatively identified hundreds of Hox downstream genes in Drosophila by microarray analysis, and validated many of them by in situ hybridizations on loss- and gain-of-function mutants. One important finding is that Hox proteins, despite their similar DNA binding properties in vitro, have highly specific effects on the transcriptome in vivo, as expression of many downstream genes responds primarily to a single Hox protein. In addition, a large fraction of downstream genes encodes realizator functions, which directly affect morphogenetic processes, such as orientation and rate of cell divisions, cell-cell adhesion and communication, cell shape and migration, or cell death. Focusing on these realizators, we provide a framework for the morphogenesis of the maxillary segment. Since the genomic organization of Hox genes and the interaction of Hox proteins with specific cofactors are conserved in vertebrates and invertebrates, and similar classes of downstream genes are regulated by Hox proteins across the metazoan phylogeny, our findings represent a first step towards a mechanistic understanding of morphological diversification within a species as well as between species.
Comparative analysis of Hox downstream genes in Drosophila.
Age, Time
View Samples