In this study, we have analyzed the expression profiles of rice genes under control and heat shock conditions using microarray technology to identify the genes differentially expressed.
No associated publication
No sample metadata fields
View SamplesTranscription profiling of a Bur1 ts mutant (bur1-7), a Rfa1 ts mutant (rfa1-249) and of a Bur1-Rfa1 double mutant (bur1-7 rfa1-249) yeast strain.
No associated publication
No sample metadata fields
View SamplesThe influence of the shut-down of SCP160 gene expression on the yeast transcriptome was investigated in the present study.
No associated publication
Compound
View SamplesEffect of the deletion of IWR1 (YDL115c) on the Saccharomyces cerevisiae transcriptome
Iwr1 directs RNA polymerase II nuclear import
Sex
View SamplesBackground and Aims: Gene expression analysis of colon biopsies using high-density oligonucleotide microarray can contribute to the understanding of local pathophysiological alterations and to functional classification of precancerous adenoma, different stage colorectal carcinomas (CRC) and inflammatory bowel diseases (IBD).
Evaluation of microarray preprocessing algorithms based on concordance with RT-PCR in clinical samples.
No sample metadata fields
View SamplesGene expression profile of cancer cell lines of breast, lung, pancreatic, gasctric, ovarian, hepatocellular, prostate carcinomas and melanomas.
Gene expression profiling of 30 cancer cell lines predicts resistance towards 11 anticancer drugs at clinically achieved concentrations.
No sample metadata fields
View SamplesStudies in yeast and animals have revealed that histone deacetylases (HDACs) often act as components of multiprotein complexes, including chromatin remodeling complexes (CRCs). In our group, we found evidence for the interaction between Arabidopsis HD2C deacetylase and a BRM-containing SWI/SNF chromatin remodeling complex. Moreover, we revealed a novel function of HD2C as a regulator of the heat stress response. HD2C transcript levels were strongly induced in plants subjected to heat treatment and the expression of selected heat-responsive genes was up-regulated in heat-stressed hd2c mutant, suggesting that HD2C acts to down-regulate heat-activated genes.
No associated publication
Age
View SamplesThis SuperSeries is composed of the SubSeries listed below.
RDM4 modulates cold stress resistance in Arabidopsis partially through the CBF-mediated pathway.
Specimen part
View SamplesReliable clinical tests for predicting cancer chemotherapy response are not available and individual markers failed to correctly predict resistance against anticancer agents. We hypothesized that gene expression patterns attributable to chemotherapy-resistant cells can be used as a classification tool for chemoresistance and provide novel candidate genes involved in anthracycline resistance mechanisms. We contrasted the expression profiles of 4 different human tumor cell lines of gastric, pancreatic, colon and breast origin and of their counterparts resistant to the topoisomerase inhibitors daunorubicin or doxorubicin. We also profiled the sensitive parental cells treated with doxorubicin for 24h. We interrogated Affymetrix HGU133A and U95A arrays independently. We applied two independent methods for data normalization and used Prediction Analysis of Microarrays (PAM) for feature selection. In addition, we established data sets related to drug resistance by using a virtual array composed of features represented on both types of oligonucleotide arrays. We identified 71 candidate genes associated with doxorubicine/daunorubicine resistance. To validate the microarray data, we also analyzed the expression of 12 selected genes by quantitative RT-PCR or immunocytochemistry, respectively. While the comparison of drug-sensitive versus drug-resistant cells yields candidates associated with drug resistance, the 24h treatment of sensitive parental cells produced a distinct transcriptional profile related to short-term drug effects.
PSMB7 is associated with anthracycline resistance and is a prognostic biomarker in breast cancer.
No sample metadata fields
View SamplesBy silencing of RALA, a downstream member of the RAS signal transduction pathway, we aimed to determine whether genes downstream of a mutated KRAS (codon 12 or 13) or a mutated BRAF can have significant functions in colorectal cancer carcinogenesis.
Effects of RAL signal transduction in KRAS- and BRAF-mutated cells and prognostic potential of the RAL signature in colorectal cancer.
Specimen part, Cell line, Treatment
View Samples