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RNA sequencing of wildtype, PTEN single knockout (SKO), and PTEN;Rb1 double knockout (DKO) mouse prostate organoids

ABSTRACT: The goal of this study was to perform transcriptomics on wildtype, PTEN single knockout (SKO) and PTEN;Rb1 double knockout (DKO) mouse prostate organoids. We isolated basal cells from PTEN floxed and PTEN;Rb1 floxed mouse prostates and infected with either RFP control or Cre recombinase to establish wildtype, SKO, and DKO mouse prostate organoids.

ORGANISM(S): Mus musculus

PROVIDER: GSE221020 | GEO | 2023/09/01

REPOSITORIES: GEO

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RNA sequencing of wildtype, PTEN single knockout (SKO), and PTEN Rb1 double knockout (DKO) mouse prostate organoids

Project description:RNA sequencing of wildtype, PTEN single knockout (SKO), and PTEN Rb1 double knockout (DKO) mouse prostate organoids

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RNA sequencing of PTEN,Rb1 double knockout (DKO) mouse prostate organoids treated with vehicle or the small molecule mitochondrial pyruvate carrier (MPC) inhibitor UK5099

Project description:The goal of this study was to determine how pharmacological inhibition of the mitochondrial pyruvate carrier (MPC) alters lineage identity in transformed prostate organoids. We isolated basal cells from PTEN,Rb1 floxed mouse prostates and infected with Cre recombinase to establish PTEN, Rb1 double knockout (DKO) mouse prostate organoids. We then treated the DKO organoids with vehicle or 10uM UK5099 for five days.

2023-09-01 | GSE221021 | GEO

Microarray analysis of WT, SKO, PKO and DKO liver samples

Project description:Microarray analysis of WT (Pten2fl/fl:Shp2fl/fl:Alb-Cre-), SKO (Shp2hep-/-, or Shp2fl/fl:Alb-Cre+), PKO (Ptenhep-/-, or Pten2fl/fl:Alb-Cre+) and DKO (Ptenfl/fl:Shp2fl/fl:Alb-Cre+) liver samples to gain global molecular insights how shp2 and pten is involved in liver tumorigenesis.

2016-12-13 | GSE74732 | GEO

Temporal gene expression patterns (Next Generation Sequencing) in liver tumourigenesis of hepatocyte-specific deletion of shp2 and/or pten

Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goals of this study are to reveal dynamics of liver tumourigenesis in different mouse model and identify some key regulators that control HCC initiation or progression. We also try to define a index based on transcriptome of samples to quantify tumor development stage. Methods: mRNA profiles of wild-type (WT), hepatocyte-specific shp2 deletion (Shp2−/−) mice (SKO), hepatocyte-specific pten deletion (Pten−/−) mice (PKO), and hepatocyte-specific shp2 and pten deletion mice (DKO) were generated by deep sequencing. The sequence reads that passed quality filters were mapped to Mouse genome using STAR, and mRNA profiles were obtained using cuffdiff. Results: quanlity control of mRNA profiles showed that the data captured key features of phenotypes. Significantly changed genes, pathways, biolgocial processes, ligand and receptor, epigenetic regulators et al of SKO, PKO, DKO mice at differnet age were obtaiend. Temporal gene expression patterns during liver tumorigenesis in SKO, PKO and DKO mice were obtained. Conclusions: Our study represents the first detailed analysis of temporal transcriptomes during liver tumourigenesis, with biologic replicates, generated by RNA-seq technology. The optimized data analysis workflows reported here should provide a framework for comprehensive investigations of expression profiles.

2018-12-07 | GSE123427 | GEO

Role of de novo DNA methyltransferases in hematopoietic stem cells (ChIP-Seq)

Project description:We investigate the dynamics for Histone marks H3K4me3 and H3K27me3 during Dnmt3a and Dnmt3b knockout in mouse hematopoietic stem cells. The term dko represents double knockout of both Dnmt3a and Dnmt3b, while the term sko denotes single knockout of Dnmt3a. The Wildtype profiles were generated in study GSE47765. Mouse hematopoietic stem cell histone methylation profiles of sko and dko mice were generated generated by deep sequencing, in duplicate, using Illumina Hiseq 2000

2014-11-14 | E-GEOD-63273 | biostudies-arrayexpress

Role of de novo DNA methyltransferases in hematopoietic stem cells (ChIP-Seq)

2014-11-14 | GSE63273 | GEO

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

Effects of Arid1a knockout in murine ovarian endometrioid carcinomas with biallelic inactivation of Apc and Pten

Project description:We mated mice with floxed alleles of both Apc and Pten, to mice with floxed alleles for Arid1a, to obtain female mice with both copies of all three genes floxed. At 7 to 8 weeks of age the right ovarian bursal cavites of the mice were injected with 50 million plaque-forming units of adenovirus expressing Cre recombinase, which causes the floxed genes to be knocked out. Tumor tissue from 3 mice for each group was obtained at necropsy, RNA purified, and targets for Affymetrix arrays synthesized from the mRNAs. We used Affymetrix Mouse Genome 430 2.0 arrays, which hold 45101 probe-sets. Raw data was processed with Robust Multi-array Average algorithm (RMA). Data is log2-transformed transcript abundance estimates. We performed T-tests to compare the 3 vs 3 arrays. We supply a supplementary excel workbook that holds the same data as the data matrix file, but also holds the probe-set annotation at the time we analyzed the data, and some very simple statistical calculations, which select subsets of the probe-sets as differentially expressed. Consumers should consider obtaining more up-to-date probe-set annotation for the array platform. We have also supplied a second supplementary tar archive holding software and files to 1) perform permutation testing of the probe-set selection in order to estimate false discovery rates for the probe-sets we selected as differentially expressed, 2) perform enrichment testing of GO terms, and 3) to perform enrichment testing of KEGG pathways and 3000 curated gene sets from version 4 of the Molecular Signatures Database (MSigDB). The software is in "C". Ovarian endometrioid carcinoma samples from 3 female mice with conditional knockout of Apc and Pten, were compared to similar tumors from 3 female mice with conditional knockout of Apc, Pten, and Arid1a.

2015-08-04 | E-GEOD-67695 | biostudies-arrayexpress

DNA microarrays (time course) of MEFs transduced with SKO plus HDAC7 or MEF2C

Project description:Overexpression HDAC7 can enhance iPS efficiency in SKO by supressing MEF2 factors We used microarrays to identify changes induced by overexpression of HDAC7 or MEF2C. MEFs were transduced with SKO plus HDAC7 or MEF2C compared to SKO plus empty vector(Flag), GFP as controls. TRIZOL cell lysates were prepared from D6 and D10.

2011-08-17 | E-GEOD-23692 | biostudies-arrayexpress

Liver tumor gene expression profile of liver-specific PTEN KO, PTEN/SCAP double KO mice

Project description:Nonalcoholic steatohepatitis (NASH), a severe form of nonalcoholic fatty liver disease, is characterized by hepatic steatosis and hepatocellular injury and progresss cirrhosis and hepatocellular carcinoma. Sterol regulatory elment-binding proteins (SREBPs) are master regulators of lipogenesis. Liver-specific PTEN knockout (KO) mice show constitutive upregulation of SREBP through PI3K-Akt pathway activation, leading to spontaneous fatty liver and subsequent HCC development. SREBP cleavage-activating protein (SCAP) plays a critical role in SREBP activation. We sought to determine the impact of SREBP inhibition on NASH and HCC development. To this end, we additionaly inhibited SREBP pathway in liver-specific PTEN mice by ablating SCAP and generated liver-specific PTEN/SCAP double KO (DKO) mice. However unexpectedly, inhibition of SCAP/SREBP pathway markedly exacerbated liver injury (5weeks), fibrosis (5months), and carcinogenesis (7 months) in PTEN KO mice. To elucidate the mechanisms of liver tumorigenesis in liver-specific PTEN/SCAP DKO mice, we conducted transcriptome analyses of the livers.

2022-04-05 | GSE174173 | GEO

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