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Development of gene sets after deleting Rb and Pten in p53 null background primary prostate cells [Rb and Pten]

ABSTRACT: Our findings suggested that cytokines were upregulated in p53 null primary prostate cells after deleting Rb and/or Pten. Rb and Pten deletion are important for prostate cancer progression.

ORGANISM(S): Mus musculus

PROVIDER: GSE68904 | GEO | 2015/12/31

SECONDARY ACCESSION(S): PRJNA283995

REPOSITORIES: GEO

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Development of gene sets after deleting Rb and Pten in p53 null background primary prostate cells [Rb and Pten]

Project description:Our findings suggested that cytokines were upregulated in p53 null primary prostate cells after deleting Rb and/or Pten. Rb and Pten deletion are important for prostate cancer progression. p53-/- Rbf/f vs p53-/- Rbâf/âf primary prostate cells. Three independent experiments were performed. p53-/- Rbf/f vs p53-/- Rbâf/âf Ptenâf/âf primary prostate cells. Four independent experiments were performed.

2015-12-31 | E-GEOD-68904 | biostudies-arrayexpress

Development of gene sets after deleting Rb in p53 null background primary prostate cells [Rb only]

Project description:Our findings suggested that cytokines were upregulated in p53 null primary prostate cells after deleting Rb. Rb deletion is important for prostate cancer progression.

2015-12-31 | GSE68903 | GEO

Development of gene sets after deleting Rb in p53 null background primary prostate cells [Rb only]

Project description:Our findings suggested that cytokines were upregulated in p53 null primary prostate cells after deleting Rb. Rb deletion is important for prostate cancer progression. p53-/- Rbf/f vs p53-/- Rbâf/âf primary prostate cells.Three independent experiments were performed.

2015-12-31 | E-GEOD-68903 | biostudies-arrayexpress

Development of gene sets after deleting Rb or Rb and Pten in p53 null background primary prostate cells

Project description:Development of gene sets after deleting Rb or Rb and Pten in p53 null background primary prostate cells

| PRJNA283993 | ENA

Development of gene sets after deleting Rb or Rb and Pten in p53 null background primary prostate cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2015-12-31 | GSE68905 | GEO

Development of gene sets after deleting Rb or Rb and Pten in p53 null background primary prostate cells

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-12-31 | E-GEOD-68905 | biostudies-arrayexpress

PLEKHS1 drives PI3Ks and remodels pathway homeostasis in PTEN-null prostate

Project description:The PIP3/PI3K network is a central regulator of metabolism and is frequently activated in cancer, commonly by loss of the PIP3/PI(3,4)P2-phosphatase, PTEN. Despite huge investment, the drivers of the PI3K network in normal tissues and how they adapt to overactivation are unclear. We find that in healthy mouse prostate PI3K activity is driven by RTK/IRS signalling and constrained by pathway-feedback. In the absence of PTEN, the network is dramatically remodelled. A poorly understood, YXXM- and PIP3/PI(3,4)P2-binding PH domain-containing, adaptor, PLEKHS1, became the dominant activator and was required to sustain PIP3, AKT-phosphorylation and growth in PTEN-null prostate. This was because PLEKHS1 evaded pathway-feedback and experienced enhanced PI3K- and SRC-family kinase-dependent phosphorylation of Y258XXM, eliciting PI3K-activation. hPLEKHS1-mRNA and activating-Y419-phosphorylation of hSRC correlated with PI3K-pathway activity in human prostate cancers. We propose that in PTEN-null cells, receptor-independent, SRC-dependent tyrosine-phosphorylation of PLEKHS1 creates positive-feedback that escapes homeostasis, drives PIP3-signalling and supports tumour progression.

2023-08-23 | PXD043239 | Pride

Response to catration in PTEN null and PTEN null ERG expressing mouse prostates

Project description:We performed expression mouse profiling of prostates of 3 month PTEN f/f and Pten f/f;R26(ERG) mice and assessed the response to 3 days of castration. Mice are in the C57B6 background. Two mice in each group were castrated. Three days after castration, the prostate were harvested and RNA isolated by standard protocols and analyzed by expression profiling.

2013-04-25 | E-GEOD-46360 | biostudies-arrayexpress

Mus musculus

Project description:Development of gene sets after deleting Rb and Pten in p53 null background primary prostate cells [Rb and Pten]

| PRJNA283995 | ENA

Expression data from conditional Klf5 knockout Pten-null mouse prostates

Project description:KLF5 is a basic transcription factor that regulates multiple biological processes, but its function in tumorigenesis appears contradictory in the current literature, with some studies showing tumor suppressor activity and others showing tumor promoting activity. In this study, we examined the function of Klf5 in prostatic tumorigenesis using mice with prostate specific deletion of Klf5 and Pten, both of which are frequently deleted in human prostate cancer. Histological and molecular analyses demonstrated that when one Pten allele was deleted, which causes mouse intraepithelial neoplasia (mPIN), Klf5 deletion accelerated the emergence and progression of mPIN. When both Pten alleles were deleted, which causes prostate cancer, Klf5 deletion promoted tumor growth and caused more severe morphological and molecular alterations, and homozygous deletion of Klf5 was more effective than hemizygous deletion. Unexpectedly, while Klf5 deletion clearly promoted tumorigenesis in luminal cells, it actually diminished the numbers of Ck5-positive basal cells in the Pten-null tumors. Klf5 deletion also increased the cell proliferation rate in tumors with Pten deletion, which involved extensive activation of the PI3K/AKT and MAPK mitogenic signaling pathways and inactivation of the p15 cell cycle inhibitor. Global gene expression and pathway analyses demonstrated that multiple mechanisms could be responsible for the tumor promoting effect of Klf5 deletion, We used microarrays to detail the global programme of gene expression of Klf5-wildtype and Klf5-null mouse dorsal prostates under Pten-null context to figure out the differential expression profiling underlying tumorigenesis 4 Klf5-wildtype and 4 Klf5-null mouse (6 months age) dorsal prostates under Pten-null context were used for RNA extraction and hybridization on Affymetrix mouse st 1.0 array

2014-06-21 | E-GEOD-58719 | biostudies-arrayexpress

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