Project description:Recent studies suggest that PDEF is required for secretory cell differentiation in several epithelial tissues. To investigate PDEF in the mammary gland, we examined the effect of this transcription factor on gene expression using microarray based profiling of MCF-10A cells. These cells are non-transformed mammary epithelial cells that express protein and gene expression programs of basal epithelial cells and undetectable levels of endogenous PDEF. Bioinformatics analysis of the genes induced or repressed by PDEF overexpression in MCF10A cells revealed a striking effect on expression of luminal and myoepithelial cell markers.
Project description:Recent studies suggest that PDEF is required for secretory cell differentiation in several epithelial tissues. To investigate PDEF in the mammary gland, we examined the effect of this transcription factor on gene expression using microarray based profiling of MCF-10A cells. These cells are non-transformed mammary epithelial cells that express protein and gene expression programs of basal epithelial cells and undetectable levels of endogenous PDEF. Bioinformatics analysis of the genes induced or repressed by PDEF overexpression in MCF10A cells revealed a striking effect on expression of luminal and myoepithelial cell markers. Six samples were harvested 26 hours after retroviral infection with either vector control or PDEF. Each condition was performed in triplicate.
Project description:Microarray analyses with cells/tissues overexpressing YAP have revealed many transcription targets of YAP (Dong et al, 2007; Zhao et al, 2008). However, as YAP induces transformation of non-cancerous cells, we thought many of known targets of YAP may be indirect consequence of transforming property of YAP. To identify the immediate transcription targets for YAP, we utilized immortalized mammary epithelial MCF-10A cells expressing a tamoxifen inducible, hyperactive (S127/381A) YAP mutant (MCF-10A ERT2-YAP 2SA). MCF-10A ERT2 and MCF-10A ERT2-YAP 2SA are generated. Each cell line was treated with 0.1% of ethanol (solvent) or 1uM of 4-hydroxytamoxifen for 2 or 6 hours. This makes 6 samples per set. The experiments were done in duplicate. The expression data from MCF-10A ERT2 and MCF-10A ERT2-YAP 2SA before tamoxifen treatment can serve as control.
Project description:To explore the roles of essential miRNAs in regulating self-renewal of breast cancer stem cells (BCSCs), which initiate from mammary epithelial stem cells (MaSCs). CD44+CD24-/low cells and MUC1-ESA+ cells were isolated by fluorescence-activated cell sorting (FACS) from breast cancer cell line MCF-7 and normal mammary epithelial cell line MCF-10A, and were verified as BCSCs and MaSCs by clonogenic assay and multipotential differentiation experiment in 2-dimensional (2-D) and 3-D cultures, respectively. Using microarray containing oligonucleotides corresponding to 509 miRNAs from human, mouse, and rat genomes. We obtained candidate miRNAs in regulating breast tumorigenesis. One representative miRNA (miR-200c) was proved to regulate stemness of BCSCs and MaSCs in vitro and in vivo by miR-200c agomir transfection. We validated that miR-200c negatively regulated PDCD10, an apoptosis regulator, in BCSCs and MaSCs.
Project description:To study the function of 14-3-3ζ, we established MCF-10A human mammary epithelial cells transduced with 14-3-3ζ (10A.ζ) and vector (10A.Vec) We performed gene expression profiling on 10A.ζ cells and 10A.Vec cells, and normalized to profiling of MCF-10A parental cells
Project description:We studied genes, that are differentially expressed between malignant and normal breast tissue, to find weak spots for anti-cancer therapy development. RNA sequencing of three cell lines was performed: MCF-7 (epithelial breast cancer cell line), BCC (primary breast tumour cell line) and MCF-10A (epithelial breast cell line).
Project description:We report differentially expressed genes by DATS exposure in MCF-10A human epithelial cell line and SK-BR-3 human breast cancer cell line
