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Discovery of immediate YAP target genes with inducible form of YAP

ABSTRACT: 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.

ORGANISM(S): Homo sapiens

SUBMITTER: Tackhoon Kim

PROVIDER: E-GEOD-60579 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transcriptional co-repressor function of the hippo pathway transducers YAP and TAZ.

Kim Minchul M Kim Taekhoon T Johnson Randy L RL Lim Dae-Sik DS

Cell reports 20150402 2

YAP (yes-associated protein) and TAZ are oncogenic transcriptional co-activators downstream of the Hippo tumor-suppressor pathway. However, whether YAP and/or TAZ (YAP/TAZ) engage in transcriptional co-repression remains relatively unexplored. Here, we directly demonstrated that YAP/TAZ represses numerous target genes, including tumor-suppressor genes such as DDIT4 (DNA-damage-inducible transcript 4) and Trail (TNF-related apoptosis-inducing ligand). Mechanistically, the repressor function of YA ...[more]

PMID: 25843714

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Discovery of immediate YAP target genes with inducible form of YAP

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).

2015-11-23 | GSE60579 | GEO

Expression data of ATM, ATR, CHK1, CHK2, and 53BP1 shRNA knockdown and control shRNA in MCF-10A cells

Project description:Homologous recombination-mediated DNA repair deficiency (HRD) predisposes to cancer development, but also provides therapeutic opportunities. Here, we identified an HRD gene signature that robustly predicted HRD status. Unexpectedly, concurrent loss of PTEN in BRCA1-deficient cells might extensively rewire the HR repair network and confer resistance to PARP inhibitor, partially through over-expression of TTK. We used the HRD gene signature as a drug discovery tool and found several PARP-inhibitor-synergizing agents through the connectivity map. Thus gene expression profiling can be used to define the functional status of the HR repair network providing prognostic and therapeutic information. Various shRNAs that target genes involved in homologous recombination (HR) were transfected in MCF-10A non-transformed breast cells lines. Stable HR gene knockdown MCF-10A cells were seeded 200000 at 10 cm plate. Cells were harvested after 48 hours culturing and used for gene expression profiling. The shRNAs that target ATM, ATR, CHK1, CHK2, and 53BP1 genes were transfected in MCF-10A non-transformed breast cell line by lentiviral particles and selected stable ATM, ATR, CHK1, CHK2, and 53BP1 knockdown MCF-10A cells. Scrambled control shRNA-transfected and wild type MCF-10A cells were applying as control. All knockdown and control MCF-10A cells were seeded with 2 x 10^5 cells at 10 cm culture plate. Cells were cultured in MCF-10A medium and harvested after 48 hours culturing. mRNA was extracted from collected cells and performing gene expression profiling. Three biological replicates were applied.

2014-01-24 | E-GEOD-54268 | biostudies-arrayexpress

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Project description:Homologous recombination-mediated DNA repair deficiency (HRD) predisposes to cancer development, but also provides therapeutic opportunities Here, we identified an HRD gene signature that robustly predicted HRD status Unexpectedly, concurrent loss of PTEN in BRCA1-deficient cells might extensively rewire the HR repair network and confer resistance to PARP inhibitor, partially through over-expression of TTK We used the HRD gene signature as a drug discovery tool and found several PARP-inhibitor-synergizing agents through the connectivity map Thus gene expression profiling can be used to define the functional status of the HR repair network providing prognostic and therapeutic information Various shRNAs that target genes involved in homologous recombination (HR) were transfected in MCF-10A non-transformed breast cells lines Stable HR gene knockdown MCF-10A cells were seeded 200000 at 10 cm plate Cells were harvested after 48 hours culturing and used for gene expression profiling The shRNA that target Brit1 genes was transfected in MCF-10A non-transformed breast cell line by lentiviral particles and selected stable Brit1 knockdown MCF-10A cells. Scrambled control shRNA-transfected MCF-10A cells were applying as control. Both stable Brit1 knockdown and control MCF-10A cells were seeded with 2 x 10^5 cells at 10 cm culture plate. Cells were cultured in MCF-10A medium and harvested after 48 hours culturing. mRNA was extracted from collected cells and performing gene expression profiling. Three or four biological replicates were applied.

2014-01-24 | E-GEOD-54264 | biostudies-arrayexpress

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2014-07-01 | E-GEOD-39550 | biostudies-arrayexpress

Expression data of BRCA1 shRNA and Rad51 shRNA knockdown and control shRNA in MCF-10A cells

Project description:Homologous recombination-mediated DNA repair deficiency (HRD) predisposes to cancer development, but also provides therapeutic opportunities. Here, we identified an HRD gene signature that robustly predicted HRD status. Unexpectedly, concurrent loss of PTEN in BRCA1-deficient cells might extensively rewire the HR repair network and confer resistance to PARP inhibitor, partially through over-expression of TTK. We used the HRD gene signature as a drug discovery tool and found several PARP-inhibitor-synergizing agents through the connectivity map. Thus gene expression profiling can be used to define the functional status of the HR repair network providing prognostic and therapeutic information. Various shRNAs that target genes involved in homologous recombination (HR) were transfected in MCF-10A non-transformed breast cells lines. Stable HR gene knockdown MCF-10A cells were seeded 200000 at 10 cm plate. Cells were harvested after 48 hours culturing and used for gene expression profiling. The shRNAs that target PTEN or BRCA1 genes were transfected in MCF-10A non-transformed breast cell line by lentiviral particles. Stable BRCA1 and PTEN knockdown MCF-10A cells were selected. Scrambled control shRNA-transfected MCF-10A cells were applying as control. All knockdown and control MCF-10A cells were seeded with 2 x 10^5 cells at 10 cm culture plate. Cells were cultured in MCF-10A medium and harvested after 48 hours culturing. mRNA was extracted from collected cells and performing gene expression profiling. Four biological replicates were applied. Four biological replicates were applied.

2014-01-24 | E-GEOD-54266 | biostudies-arrayexpress

Genome-wide analysis of time-dependent gene expression in MCF-10A cells treated with the EGFR-specific inhibitor gefitinib for 45 hours

Project description:Results of blocking EGFR kinase activity in MCF-10A cells by treatment with gefitinib and measuring gene expression as a function of time provides information as to what genes are regulated by EGFR in these nontransformed breast epithelial cells. MCF-10A cells were treated with the EGFR-specific small molecule kinase inhibitor gefitinib for 45 hours. Total RNA was collected every 3 hours from parallel cultures throughout the 45 hour duration of treatment and genome-wide analysis of expression was performed on RNA from each time point (total 16 time points, starting at 0 hours treatment).

2010-08-24 | E-GEOD-23135 | biostudies-arrayexpress

Genome-wide analysis of time-dependent gene expression in MCF-10A cells treated with the HER-2-specific inhibitor CP724,714 for 45 hours

Project description:Results of blocking HER-2 kinase activity in MCF-10A cells by treatment with CP724,714 and measuring gene expression as a function of time provides information as to what genes are regulated by HER-2 in these nontransformed breast epithelial cells. MCF-10A cells were treated with the HER-2-specific small molecule kinase inhibitor CP724,714 for 45 hours. Total RNA was collected every 3 hours from parallel cultures throughout the 45 hour duration of treatment and genome-wide analysis of expression was performed on RNA from each time point (total 16 time points, starting at 0 hours treatment).

2011-03-18 | E-GEOD-23138 | biostudies-arrayexpress

Expression data of BRCA1 shRNA and PTEN shRNA single knockdown, BRCA1_PTEN shRNA double knockdowns and control shRNA in MCF-10A cells

Project description:Homologous recombination-mediated DNA repair deficiency (HRD) predisposes to cancer development, but also provides therapeutic opportunities. Here, we identified an HRD gene signature that robustly predicted HRD status. Unexpectedly, concurrent loss of PTEN in BRCA1-deficient cells might extensively rewire the HR repair network and confer resistance to PARP inhibitor, partially through over-expression of TTK. We used the HRD gene signature as a drug discovery tool and found several PARP-inhibitor-synergizing agents through the connectivity map. Thus gene expression profiling can be used to define the functional status of the HR repair network providing prognostic and therapeutic information. Various shRNAs that target genes involved in homologous recombination (HR) were transfected in MCF-10A non-transformed breast cells lines. Stable HR gene knockdown MCF-10A cells were seeded 200000 at 10 cm plate. Cells were harvested after 48 hours culturing and used for gene expression profiling. The shRNAs that target PTEN or BRCA1 genes were transfected in MCF-10A non-transformed breast cell line by lentiviral particles to generate either single gene knockdown or double gene knockdown. Stable BRCA1, PTEN, and BRCA1_PTEN MCF-10A cells were selected. Scrambled control shRNA-transfected MCF-10A cells were applying as control. All knockdown and control MCF-10A cells were seeded with 2 x 10^5 cells at 10 cm culture plate. Cells were cultured in MCF-10A medium and harvested after 48 hours culturing. mRNA was extracted from collected cells and performing gene expression profiling. Three or four biological replicates were applied. Four biological replicates were applied.

2014-01-24 | E-GEOD-54265 | biostudies-arrayexpress

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Project description:Gene expression analysis of MCF-7 cells transfected with a scramble or RBM38 siRNA and incubated with or without doxorubicin. The hypothesis tested in the present study was to assess the impact of RBM38 depletion on gene expression of normal growing and doxorubicin-stressed MCF-7 cells. Results provide information about doxorubicin and/or RBM38-responsive genes. Total RNA obtained from isolated MCF-7 cells transfected with a scramble or RBM38 siRNA (72h) and incubated with or without doxorubicin (24h).

2011-09-30 | E-GEOD-32301 | biostudies-arrayexpress

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