Project description:This SuperSeries is composed of the following subset Series: GSE31603: Human breast cancer cell lines: vehicle vs. BMP4 incubation GSE31604: Human breast cancer cell lines: vehicle vs. BMP7 incubation Refer to individual Series
Project description:Bone morphogenetic proteins (BMPs) are members of the TGF-β superfamily of growth factors. They are known for their roles in regulation of osteogenesis and developmental processes and, in recent years, evidence has accumulated of their crucial functions in tumor biology. BMP7, in particular, has been implicated in breast cancer. However, little is known about BMP target genes in the context of tumor. We therefore explored the effects of BMP7 treatment on global gene transcription in five breast cancer cell lines during a 6-point time series. Data analysis included hierarchical clustering of differentially expressed genes, gene ontology enrichment analyses and model based clustering of temporal data. BMP7 had a strong effect on gene expression. The cellular functions most strongly affected were regulation of transcription and development. The observed transcriptional response followed a temporal sequence. Hierarchical clustering revealed distinct differences in the response of individual cell lines to BMP7, but also highlighted a synexpression group of genes. Finally, this study provides a list of potential novel BMP target genes relevant in breast cancer. Two-condition experiment, vehicle-treated vs. BMP7-treated. Five cell lines were tested at six time points each, what makes a total of 30 samples. RNA samples from three biological replicates were pooled before hybridization.
Project description:Transcriptional profiling of human mesenchymal stem cells comparing normoxic MSCs cells with hypoxic MSCs cells. Hypoxia may inhibit senescence of MSCs during expansion. Goal was to determine the effects of hypoxia on global MSCs gene expression. Two-condition experiment, Normoxic MSCs vs. Hypoxic MSCs.
Project description:Gene methylation profiling of immortalized human mesenchymal stem cells comparing HPV E6/E7-transfected MSCs cells with human telomerase reverse transcriptase (hTERT)- and HPV E6/E7-transfected MSCs. hTERT may increase gene methylation in MSCs. Goal was to determine the effects of different transfected genes on global gene methylation in MSCs. Two-condition experiment, KP MSCs vs. 3A6 MSCs.