Hepatic stellate cells (HSCs) experience phenotypic transformation, from the quiescent phenotype to the activated one, after different etiologies of liver injury. Liver fibrosis is then occurred upon the activation of HSCs. miR-16 deficiency is identified to be an important characteristic of HSCs activation. We used Affymetrix rat 230 2.0 arrays (Affymetrix, Santa Clara, U.S.A.) to uncover the global alternations of transcriptome under miR-16 restoration.
No associated publication
Sex
View SamplesDevelopmental Origins of Health and Disease Hypothesis (DOHaD) all emphasized that maternal nutrition plays an important role on the growth and development of offspring. More and more attention has been paid on the effect of maternal high fat diet and overnutrition during pregnancy on the susceptibility of offspring metabolic diseases. So we aim to build the rat model of maternal high fat diet which may induce steatohepatitis and change of lipid metabolism in the early life of offspring, and explore their possible mechannisms.And then to investigate the influence of maternal high fat diet on the expression of hepatic metabolic genes in the early life of offspring.
No associated publication
Age, Specimen part
View SamplesWnt signaling contributes to the reprogramming and maintenance of cancer stem cell (CSC) states that is activated by the epithelial-mesenchymal transition (EMT) program. However, the mechanistic relationship between the EMT and Wnt pathway in CSCs remains unclear. Chromatin immunoprecipitation with high-throughput sequencing (ChIP-seq) indicated that EMT induces a switch from the -catenin/E-cadherin/Sox15 complex to the -catenin/Twist1/TCF4 complex, which then binds to CSC-related gene promoters. In tandem co-IP and re-ChIP experiments using epithelial-type cells, Sox15 associated with the -catenin/E-cadherin complex and then bound to the proximal promoter region of CASP3, consequently resulting in Twist1 cleavage and negatively regulating the -cateninelicited promotion of the CSC phenotype. During the EMT, Twist1 in complex with -catenin enhanced -catenin/TCF4 transcriptional activity, which includes binding to the proximal promoter region of ABCG2, a marker of CSCs. For clinical application, the five-gene signature nuclear -cateninHigh/nuclear Twist1High/E-cadherinLow/Sox15Low/CD133High may be a valuable prognostic marker in patients with human lung cancer.
Diverse Targets of β-Catenin during the Epithelial-Mesenchymal Transition Define Cancer Stem Cells and Predict Disease Relapse.
Specimen part, Cell line
View SamplesKDM4B, an important epigenetic regulator of cell proliferation, metastasis and genome stability, is often overexpressed in gastric cancer. Notably, elevated expression of KDM4B is associated with a poor clinical outcome. A global transcriptomic analysis between KDM4B control and KDM4B-knockdown AGS cells without or with Helicobacter pylori challenge reveals differentially expressed genes involved in response to virus, multi-organism process, and response to stimulus, suggesting KDM4B as an inducible epigenetic factor under H. pylori challenge.
KDM4B is a coactivator of c-Jun and involved in gastric carcinogenesis.
Specimen part, Cell line, Treatment
View SamplesThe nematode C. elegans was exposed to TiO2 nanoparticles (NPs) to evaluate the ecotoxicity of TiO2 nanoparticles.
No associated publication
No sample metadata fields
View SamplesA predictive gene list for response to high dose melphalan therapy in patients diagnosed with multiple myeloma is generated by combining results from dose response experiments and microarray data using a B-cell line panel and the introduction of multivariate regression techniques.
Generation of a predictive melphalan resistance index by drug screen of B-cell cancer cell lines.
Cell line
View SamplesWe used microarrays to assess gene expression in patients with ET, PV, and PMF compared to control subjects
Whole-blood transcriptional profiling of interferon-inducible genes identifies highly upregulated IFI27 in primary myelofibrosis.
Specimen part, Disease
View Samplesusing peripheral blood monocytes to identify marker genes for an extensively grown coronary collateral circulation.
Non-invasive gene-expression-based detection of well-developed collateral function in individuals with and without coronary artery disease.
Sex, Age
View SamplesSpecific microRNA (miRNA) signatures have been associated with different cytogenetic subtypes in acute leukemias. This finding prompted us to investigate potential associations between genetic abnormalities in multiple myeloma (MM) and singular miRNA expression profiles. Moreover, global gene expression profiling was also analyzed to find correlated miRNA-gene expression and select miRNA target genes that show such correlation. For this purpose, we analyzed the expression level of 365 miRNAs and the gene expression profiling in sixty newly diagnosed MM patients, selected to represent the most relevant recurrent genetic abnormalities. Supervised analysis showed significantly deregulated miRNAs in the different cytogenetic subtypes as compared to normal PC. Interestingly, miR-1 and miR-133a clustered on the same chromosomal loci, were specifically overexpressed in the cases with t(14;16). The analysis of the relationship between miRNA expression and their respective target genes showed a conserved inverse correlation between several miRNAs deregulated in MM cells and CCND2 expression level. These results illustrate, for the first time, that miRNA expression pattern in MM is associated with genetic abnormalities, and that the correlation of the expression profile of miRNA and their putative mRNA targets is useful to find statistically significant protein-coding genes in MM pathogenesis associated to changes in specific miRNAs.
Deregulation of microRNA expression in the different genetic subtypes of multiple myeloma and correlation with gene expression profiling.
Specimen part, Disease
View SamplesTo identify signature genes that help distinguish (1) sepsis from non-infectious causes of systemic inflammatory response syndrome, (2) between Gram-positive and Gram-negative sepsis.
Gene-expression profiling of peripheral blood mononuclear cells in sepsis.
No sample metadata fields
View Samples