consequences of astrocytes on GSCs, gene expression profiles generated from glioblastoma stem-like cells grown alone (mono-culture) and compared to those generated 48h after the initiation of co-culture with astrocytes
Coculture with astrocytes reduces the radiosensitivity of glioblastoma stem-like cells and identifies additional targets for radiosensitization.
Specimen part, Subject
View SamplesDefining radioresponse using the translatome and the transcriptome to identify functional consequences of radiation.
Polysome Profiling Links Translational Control to the Radioresponse of Glioblastoma Stem-like Cells.
Specimen part, Cell line, Treatment, Time
View SamplesCytoplasmic RNA bound to eIF4E was pulled down from MDA-MB-231 cells to determine the influence of radiation on eIF4E mRNA binding
Translation initiation factor eIF4E is a target for tumor cell radiosensitization.
Cell line, Treatment, Time
View SamplesNeoadjuvant chemotherapy has been shown to be equivalent to post-operative treatment for breast cancer, and allows for assessment of chemotherapy response. In a pilot trial of docetaxel (T) and capecitabine (X) neoadjuvant chemotherapy for Stage II/III BC, we assessed correlation between baseline gene expression and tumor response to treatment, and examined changes in gene expression associated with treatment. Patients received 4 cycles of TX. Tumor tissue obtained from Mammotome core biopsies pretreatment (BL) and post-Cycle 1 (C1) of TX was flash frozen and stored at -70C until processing. Gene expression analysis utilized Affymetrix HG-U133 Plus 2.0 GeneChip arrays. Statistical analysis was performed using BRB Array Tools after RMA normalization. Gene ontology (GO) pathway analysis used random variance t-tests with a significance level of p<0.005. For gene categories identified by GO pathway analysis as significant, expression levels of individual genes within those pathways were compared between classes using univariate t-tests; those genes with significance level of p<0.05 were reported.
Gene expression pathway analysis to predict response to neoadjuvant docetaxel and capecitabine for breast cancer.
Specimen part, Time
View SamplesGene expression changes were analyzed in U251 GBM cells after downregulation of MPS1 by RNA interference technology at different time points
Targeting MPS1 Enhances Radiosensitization of Human Glioblastoma by Modulating DNA Repair Proteins.
Cell line, Treatment
View SamplesGenotype specific differences in expression profiles have been evaluated using human HuGene1.0-ST Gene Chips. In this dataset we include expression data obtained from 8 normal adrenal medulla and 45 PHEOs/PGLs patient samples.
Genotype and tumor locus determine expression profile of pseudohypoxic pheochromocytomas and paragangliomas.
Sex, Specimen part
View SamplesGene Expression Profiling of a Mouse Xenograft Model of Triple-Negative Breast Cancer Brain Metastases With and Without Vorinostat Treatment.
Vorinostat inhibits brain metastatic colonization in a model of triple-negative breast cancer and induces DNA double-strand breaks.
Treatment
View SamplesTriple-negative (TN) breast cancers need to be refined in order to identify therapeutic subgroups of patients.
Gene-expression molecular subtyping of triple-negative breast cancer tumours: importance of immune response.
Disease
View SamplesMutations in PROP1 are the most common cause of hypopituitarism in humans; therefore, unraveling its mechanism of action is highly relevant from a therapeutic perspective. Our current understanding of the role of PROP1 in the pituitary gland is limited to the regulation of pituitary transcription factors Hesx1 and Pit1. To elucidate the comprehensive PROP1-dependent gene regulatory network, we conducted genome wide analysis of PROP1 DNA binding and effects on gene expression in mutant tissues, isolated stem cells and engineered cell lines. We determined that PROP1 is essential for maintaining proliferation of stem cells and stimulating them to undergo an epithelial to mesenchymal transition-like process necessary for cell migration and differentiation. Genomic profiling reveals that PROP1 binds to and represses claudin 23, characteristic of epithelial cells, and it activates EMT inducer genes: Zeb2, Notch2 and Gli2. Our findings identify PROP1 as a central transcriptional component of pituitary stem cell differentiation. Overall design: Pituitary Colony forming cells mRNA of 13-day old wild type (Prop1 +/+), Prop1 mutants (Prop1df/df), wild type (Pit1+/+) and Pit1 mutants (Pit1 dw/dw) mice were generated by deep sequencing, in triplicates.
PROP1 triggers epithelial-mesenchymal transition-like process in pituitary stem cells.
Specimen part, Cell line, Subject
View SamplesFetal spleens were collected at days 82 and 97 of gestation following maternal infection with BVDV on day 75 of gestation.
Attenuated lymphocyte activation leads to the development of immunotolerance in bovine fetuses persistently infected with bovine viral diarrhea virus†.
Sex, Specimen part
View Samples