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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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YAP mediates crosstalk between the Hippo and PI3K-TOR pathway by suppressing PTEN via miR-29

ABSTRACT: We aimed to identify microRNAs that are regulated by YAP in human mammary epithelial cells. We utilized deep sequencing technology to identify microRNAs that are induced by YAP overexpression and repressed by YAP knockdown.

ORGANISM(S): Homo sapiens

SUBMITTER: Karen Tumaneng

PROVIDER: E-GEOD-41124 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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YAP mediates crosstalk between the Hippo and PI(3)K–TOR pathways by suppressing PTEN via miR-29.

Tumaneng Karen K Schlegelmilch Karin K Russell Ryan C RC Yimlamai Dean D Basnet Harihar H Mahadevan Navin N Fitamant Julien J Bardeesy Nabeel N Camargo Fernando D FD Guan Kun-Liang KL

Nature cell biology 20121201 12

Organ development is a complex process governed by the interplay of several signalling pathways that have critical functions in the regulation of cell growth and proliferation. Over the past years, the Hippo pathway has emerged as a key regulator of organ size. Perturbation of this pathway has been shown to play important roles in tumorigenesis. YAP, the main downstream target of the mammalian Hippo pathway, promotes organ growth, yet the underlying molecular mechanism of this regulation remains ...[more]

PMID: 23143395

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Transcription profiling of human YAP wild-type or mutants overexpressing MCF10A cells

Project description:This study compares gene expression change upon expression of Yes-associated protein (YAP) wild-type or mutants in order to establish the importance of TEAD binding and WW domains in the gene-induction function of YAP. The results indicate that gene-induction is seriously comprised in YAP-S94A (TEAD binding domain mutant) expressing cells. And mutantion of WW domains (YAP-W1W2) also affect a fraction of YAP induced genes. Therefore both TEAD binding domain and WW domains are required for the full function of YAP in gene-induction. Experiment Overall Design: Four samples are included: 1. pQCXIH vector control; 2 YAP-WT expression; 3. YAP-S94A expression; 4. YAP-W1W2 expression. Gene expression profiles of YAP wild-type or mutants expressing cells were compared to that of vector control. Experiments were done in MCF10A mammary epithelial cells.

2010-01-19 | E-GEOD-13218 | biostudies-arrayexpress

Analysis of Liver Progenitor Cells Generated from Yap Expression [Set 1]

Project description:Hippo signaling is highly associated with activity in the stem cell compartment of many epithelial tissues. In this study, we examined if Hippo signaling inhibition (by inducing Yap expression) could convert differentiated cells into a progenitor like phenotype. Organoid cells derived from mouse livers under various conditions, wild-type, Yap ON (Plus Dox), and Yap ON then OFF (Minus Dox) was examined. Comparison between freshly isolated hepatocytes; Uninduced_YPF-#.cel against Organoids grown in wild-type conditions (WT), Yap On (in vivo) off (in vitro) - YapOrganoidDoxMinus , and Yap On continuously - YapOrganoidDoxPlus. Organoids grown in culture or YFP+ sorted liver cells after the indicated time of Yap expression were collected. These were amplified using Nugene technology and hybridized to Affymetrix MoGene1.0 st arrays.

2014-06-06 | E-GEOD-55558 | biostudies-arrayexpress

Analysis of YAP1 phosphorylation sites induced by TAK1

Project description:This study aims at determining which YAP residues are phosphorylated by TAK1.

2018-11-04 | PXD011256 | Pride

Regulation of Mediator-dependent transcriptional activation of Pol II(G) through TFII

Project description:Pol II(G) is a novel form of RNA polymerase II that contains a tightly associated Gdown1 polypeptide. Whereas Pol II suffices for robust activator-dependent transcription in the absence of Mediator, Pol II(G) is highly dependent upon Mediator in a biochemically defined in vitro system. However, the mechanism(s) whereby Gdown1 alters the coactivator-dependence of Pol II is unknown. Here we show that Gdown1 competes with TFIIF for binding to the RPB1 and RPB5 subunits of Pol II in vitro, resulting in inhibition of a critical function of TFIIF in facilitating PIC assembly. The apparent inability of Pol II(G) to associate with TFIIF suggests that Gdown1 must be removed from Pol II for transcription initiation. However, Mediator can actually help Pol II(G) bind to the promoter prior to subsequent Mediator functions. Complementary cell-based analyses reveal that Pol II(G) is recruited to promoter regions of subsets of actively transcribed genes, where Pol II(G) appears to modulate transcription. Our findings indicate that differential regulation of subsets of genes by Pol II and Pol II(G) occurs through the regulation of TFIIF and consequent alterations in Mediator requirements. Genome-wide localization of PolII and Gdown1 in human IMR90 fibroblast cells using ChIP-seq

2012-01-13 | E-GEOD-33128 | biostudies-arrayexpress

Pi3kcb links Hippo-YAP and PI3K-AKT signaling pathways to promote cardiomyocyte proliferation and survival [microarray]

Project description:Background—YAP, the nuclear effector of Hippo signaling, regulates cellular growth and survival in multiple organs, including the heart, by interacting with TEAD sequence specific DNA-binding proteins. Recent studies showed that YAP stimulates cardiomyocyte proliferation and survival. However, the direct transcriptional targets through which YAP exerts its effects are poorly defined. Methods and Results—To identify genes directly regulated by YAP in cardiomyocytes, we combined differential gene expression analysis in YAP gain- and loss-of-function with genome-wide identification of YAP bound loci using chromatin immunoprecipitation and high throughput sequencing. This screen identified Pik3cb, encoding p110β, a catalytic subunit of phosphoinositol-3-kinase (PI3K), as a candidate YAP effector that promotes cardiomyocyte proliferation and survival. We validated YAP and TEAD occupancy of a conserved enhancer within the first intron of Pik3cb, and show that this enhancer drives YAP-dependent reporter gene expression. Yap gain- and loss-of-function studies indicated that YAP is necessary and sufficient to activate the PI3K-Akt pathway. Like Yap, Pik3cb gain-of-function stimulated cardiomyocyte proliferation, and Pik3cb knockdown dampened the YAP mitogenic activity. Reciprocally, Yap loss-of-function impaired heart function and reduced cardiomyocyte proliferation and survival, all of which were significantly rescued by AAV-mediated Pik3cb expression. Conclusion—Pik3cb is a crucial direct target of YAP, through which the YAP activates PI3K-AKT pathway and regulates cardiomyocyte proliferation and survival. Two groups were involved in this study:TNTcreYapfl_het group and TNTcreYapfl_KO group. Each group contained three biological replicates. Embryo hearts were collected at E12.5 and dissociated. Cardiomyocytes were collected by FACS. The total RNA of cardiomyocytes were isolated for microarray analysis.

2015-02-20 | E-GEOD-57718 | biostudies-arrayexpress

Gene expression data from livers of Yap+/+ and Yap+/- mice at postnatal day 30

Project description:Liver undergoes both size increase and differentiation during postnatal period, which in mice is approximately first 30 days. The mechanisms of simultaneous postnatal liver cell proliferation and maturation are not clear. In these experiments, role of yes associated protein (Yap), the downstream effector of Hippo Kinase signaling pathway was investigated. Total RNA isolated from livers of Yap+/+ and Yap+/- mice at Postnatal day 30. Pooled livers from 5 mice per genotype were used.

2012-04-04 | E-GEOD-31281 | biostudies-arrayexpress

CCT3 acts as upstream of YAP and TFCP2 to be a potential target and tumor biomarker in liver cancer

Project description:Recently, we've reported that pro-tumorigenic roles of YAP in liver cancer are indispensable of TFCP2 act as upstream to simultaneously control YAP.The aim of this study is to uncover such proteins and evaluate whether the candidates are potential YAP-associated therapeutic target and diagnostic marker Via mass spectrometry, CCT3 was identified to co-interact with YAP and TFCP2, and importantly.

2019-09-11 | PXD013143 | Pride

The miRNA profiling of goat CD49f-positive and negative testicular cells

Project description:Purpose: miRNAs, a member of the small RNA, play critical roles in the mammalian spermatogenesis. Spermatogonia was the foundation of spermatogenesis and valuable for the study of spermatogenesis. However, it is still not clear that the expression profiling of the miRNAs in spermatogonia of dairy goat. Methods: The CD49f was one of the surface markers for spermatogonia enrichment by MACS. Therefore, we used CD49f microbeads antibody to purify CD49f-positive and negative cells of dairy goat testicular cells by MACS (Magnetic Activated Cell Sorting), and then in-depth analyzed the miRNA expression in these cells using Illumina sequencing technology. Results: The results of miRNAs expression profiling in purified CD49f-positive and negative testicular cells showed that 933 were miRNAs upregulated in CD49f-positive cells and 916 were miRNAs upregulated in CD49f-negative cells with a 2-fold increase, respectively; some spermatogonial stem cells(SSCs) specific miRNAs and marker genes in testis had a higher level expression in CD49f-positive testicular cells, such as miR-221, miR-23a, miR-29b, miR-24, miR-29a, miR-199b, miR-199a, miR-27a, miR-21. Conclusions: our comparative miRNAome data provided some useful miRNAs profiling data of dairy goat spermatogonia cells and suggested CD49f could be used to enrich dairy goat spermatogonia-like cells, including SSCs. miRNA profiles of goat CD49f-positive and negative testicular cells were generated by deep sequencing, in triplicate, using Illumina GAIIx

2014-04-25 | E-GEOD-57041 | biostudies-arrayexpress

YAP conveys an invasive phenotype to clear cell renal cell carcinoma cell lines via endothelin-2

Project description:To determine the biological mechanisms underlying the oncogenic properties of YAP in ccRCC the human ccRCC cell line MZ1774 was transduced with lentivirus containing a shRNA-cassette targeting YAP-mRNA. Expression profiles of MZ1774 YAP knockdown cells were compared to mock-transduced control cells. Total RNA from MZ1774 cells stably expressing shRNA directed against YAP compared to mock-transduced MZ1174 cells

2014-12-23 | E-GEOD-50053 | biostudies-arrayexpress

Characterization of the small RNA content of Trypanosoma cruzi extracellular vesicles

Project description:A growing body of evidence in mammalian cells indicates that secreted vesicles can be used to mediate intercellular communication processes by transferring various bioactive molecules, including mRNAs and microRNAs. Based on these findings, we decided to analyze whether T. cruzi-derived extracellular vesicles contain RNA molecules and performed a deep sequencing and genome-wide analysis of a size-fractioned cDNA library (16M-bM-^@M-^S40 nt) from extracellular vesicles secreted by noninfective epimastigote and infective metacyclic trypomastigote forms. Our data show that the small RNAs contained in these extracellular vesicles originate from multiple sources, including tRNAs. In addition, our results reveal that the variety and expression of small RNAs are different between parasite stages, suggesting diverse functions. Taken together, these observations call attention to the potential regulatory functions that these RNAs might play once transferred between parasites and/or to mammalian host cells. Small RNAs profiles (16-40 nt) of epimastigote-derived extracellular vesicles, metacyclic trypomastigote-derived extracellular vesicles and metacyclic trypomastigote parental cells.

2014-07-15 | E-GEOD-54111 | biostudies-arrayexpress

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