Ontology highlight
ABSTRACT:
PROVIDER: PRJNA120989 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:This SuperSeries is composed of the following subset Series: GSE18952: Effects of IGF 1 on primary breast fibroblasts (normal and carcinoma associated) GSE18953: Effects of IGF 1 on MCF-7 breast cancer cells GSE18954: Effects of IGF 1 on CCL-171 fibroblasts Refer to individual Series
2010-06-24 | E-GEOD-18955 | biostudies-arrayexpress
Project description:To characterize the effects of IGF 1 on CCL171 cells, we cultured pre-starved CCL 171 fibroblasts with or without 50ng/ml IGF 1 for 24 h. We then profiled gene expression changes using Human Exonic Evidence Based Oligonucleotide (HEEBO) microarrays. After stimulation, total RNA was extracted and amplified using a modified Eberwine procedure. The amplified RNA was labeled with the fluorescent dye Cy5 and pooled with Cy3 labeled reference RNA, and then the pooled RNA was hybridized onto HEEBO microarrays. After hybridization and washing, arrays were scanned on a fluorescent microscope scanner.
2010-01-21 | GSE18954 | GEO
Project description:To characterize the effects of IGF 1 on CCL171 cells, we cultured pre-starved CCL 171 fibroblasts with or without 50ng/ml IGF 1 for 24 h. We then profiled gene expression changes using Human Exonic Evidence Based Oligonucleotide (HEEBO) microarrays. After stimulation, total RNA was extracted and amplified using a modified Eberwine procedure. The amplified RNA was labeled with the fluorescent dye Cy5 and pooled with Cy3 labeled reference RNA, and then the pooled RNA was hybridized onto HEEBO microarrays. After hybridization and washing, arrays were scanned on a fluorescent microscope scanner. An all pairs experiment design type is where all labeled extracts are compared to every other labeled extract.
2010-06-24 | E-GEOD-18954 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE7260: epithelial-mesenchymal interaction of the breast GSE7263: Effect of heterotypic interaction between breast cancer cell line MDA-MB231 and CCL-171 fibroblast Refer to individual Series
2007-11-13 | E-GEOD-7264 | biostudies-arrayexpress
Project description:Effects of IGF 1 on primary breast fibroblasts (normal and carcinoma associated)
| PRJNA123879 | ENA
Project description:These 12 arrays are the basis for Figure 1 of the "An interferon-response induced by tumor-stroma interaction in a subset of human breast cancers" manuscript. Figure 1: Effect of heterotypic interaction between breast cancer cell line MDA-MB231 and CCL-171 fibroblast. Biologically independent replicates of the mono-cultured fibroblast CCL-171, the breast cancer cell line MDA-MB231 and the mixed co-culture of CCL-171 and MDA-MB231 were grown for 48h at low serum conditions and characterized by DNA microarray hybridization. Hierarchical clustering of a total of 4333 elements that display a greater than 3-fold variance in expression in more than 3 different experimental samples. Data from individual elements or genes are represented as single rows, and different experiments are shown as columns. Red and green denote expression levels of the samples. The intensity of the color reflects the magnitude of the deviation from baseline. Unsupervised hierarchical clustering of the experiments grouped the biological replicates together. Gene expression varied considerably between fibroblast and MDA-MB231 as expected for cells of mesenchymal or epithelial origin respectively. The co-culture profile showed mainly intermediate expression levels. However, the vertical black bar marks a cluster of genes induced in all co-cultures compared to both mono-cultures indicating that they are induced by heterotypic interaction Set of arrays organized by shared biological context, such as organism, tumors types, processes, etc. Computed
2007-11-13 | E-GEOD-7263 | biostudies-arrayexpress
Project description:Human MRC5 pulmonary fibroblasts (CCL-171) were exposed or not to TGF-β at 10 ng/mL. RNA samples were harvested 24 hours after TGF-β exposition. Two independent experiments were carried out.
2019-04-11 | GSE97833 | GEO
Project description:Although estrogen receptor (ER) and insulin-like growth factor (IGF) signaling are important for normal mammary development and breast cancer, cross-talk between these pathways, particularly at the level of gene transcription, remains poorly understood. We performed microarray analysis on MCF-7 breast cancer cells treated with estradiol (E2) or IGF-I for 3hr or 24hr. IGF-I regulated mRNA of 5-10-fold more genes than estradiol, and many genes were co-regulated by both ligands. Importantly, expression of these co-regulated genes correlated with poor prognosis of human breast cancer. Closer examination revealed enrichment of repressed transcripts. Interestingly, a number of potential tumor suppressors were down-regulated by IGF-I and estradiol. In fact, BLNK, one of the top repressed genes, is a potential growth suppressor in breast cancer cells. Analysis of three down-regulated genes showed that E2-mediated repression occurred independently of IGF-IR, and IGF-I-mediated repression occurred independently of ER. However, repression by IGF-I or estradiol required common downstream kinases. In conclusion, E2 and IGF-I co-regulate a set of genes that affect breast cancer outcome. There is enrichment of repressed transcripts, and the down-regulation is independent at the receptor level. This may be important clinically, as tumors with active ER and IGF-IR signaling may require co-targeting of both pathways. KEYWORDS: multiple group comparison Microarray analysis on MCF-7 breast cancer cells treated with estradiol (E2) or IGF-I for 3hr or 24hr.
2011-05-09 | E-GEOD-26834 | biostudies-arrayexpress