Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Genetic screens discover proteases as synthetic lethal partners of PI3K inhibition in breast cancer cells

ABSTRACT: The RNA-Seq analysed the changes in protease gene expression upon short-term PI3K inhibition in three breast cancer cell lines.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE186196 | GEO | 2021/12/31

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Genetic screens discover proteases as synthetic lethal partners of PI3K inhibition in breast cancer cells

Project description:Genetic screens discover proteases as synthetic lethal partners of PI3K inhibition in breast cancer cells

| PRJNA772940 | ENA

CRISPR/Cas9 Screens Reveal Epstein-Barr virus Synthetic Lethal Targets

Project description:Epstein-Barr virus (EBV) causes endemic Burkitt lymphoma and immunosuppression-related lymphomas. These B-cell malignancies arise by distinct transformation pathways and utilize divergent viral and host expression programs. To identify host dependency factors elicited by EBV latent-infection states, we performed parallel genome-wide CRISPR/Cas9 screens in Burkitt lymphoma (BL) and lymphoblasotid cell lines (LCL). Our results highlighted 57 BL and 87 LCL genes selectively critical for their growth and survival. LCL hits were enriched for EBV-induced genes, including viral super-enhancer targets and multiple kinases. We uncovered key CD19/CD81 roles in EBV membrane protein-driven PI3K/AKT activation and mechanisms by which EBV evades tumor suppressor responses to its growth program. LMP1-induced cFLIP was critical for LCL defense against TNFa-mediated programmed cell death, while EBV-induced BATF/IRF4 were critical for LCL BIM suppression and MYC induction. EBV super-enhancer targeted IRF2 protected LCLs against BLIMP1 responses. Collectively, our results identify host/pathogen interaction-driven synthetic lethal targets for therapeutic intervention.

2017-05-11 | GSE93681 | GEO

Systematic yeast synthetic lethal and synthetic dosage lethal screens identify genes required for chromosome segregation.

Project description: Not available

| S-EPMC1236538 | biostudies-literature

Genetic Screens Reveal FEN1 and APEX2 as BRCA2 Synthetic Lethal Targets.

Project description: Not available

| S-EPMC6892393 | biostudies-literature

Detection of COPB2 as a KRAS synthetic lethal partner through integration of functional genomics screens.

Project description: Not available

| S-EPMC5470967 | biostudies-literature

Systems biology-guided identification of synthetic lethal gene pairs and its potential use to discover antibiotic combinations.

Project description: Not available

| S-EPMC4631998 | biostudies-literature

A Novel PI3K Regulator, ARID4B, Presents Synthetic Essentiality in PTEN-deficient Prostate Cancer [RNA-seq]

Project description:Phosphatase and tensin homologue (PTEN) is the most frequently mutated tumor suppressor gene in human prostate cancer. Synthetic essentiality is defined as cancer that harbors a specific tumor suppressor deficiency is dependent on synthetic-essential genes for the malignant phenotypes. Recently, targeting such synthetic-essential genes has become an attractive treatment approach for cancers that acquire loss-of-function mutations in tumor suppressor genes. Here, we show that AT-rich interaction domain 4B (ARID4B) functions as a synthetic-essential gene in prostate tumorigenesis driven by PTEN deficiency. This functional interaction between ARID4B and PTEN is recapitulated in the mouse model carrying prostate-specific deletions of Pten and Arid4b in which ablation of ARID4B attenuated prostate cancer progression elicited by loss of PTEN. Although the tumor suppressor function of PTEN is most attributed to its lipid phosphatase activity that counters the PI3K action in cytoplasm, we identified the PTEN-ARID4B-PI3K axis in which nuclear PTEN inhibits expression of ARID4B, while ARID4B serves as a transcriptional activator of the PI3K subunits PIK3CA and PIK3R2 to trigger the PI3K/AKT pathway. Our study further demonstrated that the reciprocal binding of ARID4B and histone H1 to the PIK3CA and PIK3R2 promoters modulates chromatin condensation, indicating a mechanism by which ARID4B activates these promoters. Finally, a three-gene signature consisting of PTEN, ARID4B, and PI3K substantially improves the predictive power for tumor recurrence in human prostate cancer patients, underscoring the clinical significance of this newly identified PTEN-ARID4B-PI3K axis. These findings reveal a novel synthetic-essential relationship between ARID4B and PTEN, thus exposing a previously unidentified cancer-specific vulnerability, and supporting ARID4B as a potential therapeutic target for prostate cancer patients with PTEN mutations.

2019-08-23 | GSE116668 | GEO

A Novel PI3K Regulator, ARID4B, Presents Synthetic Essentiality in PTEN-deficient Prostate Cancer [ChIP-seq]

2019-08-23 | GSE116669 | GEO

Synthetic lethal combinations of low-toxicity drugs for breast cancer identified in silico by genetic screens in yeast.

Project description: Not available

| S-EPMC6284748 | biostudies-literature

Comparative study of a mTOR inhibitor, a pan-PI3K inhibitor and a dual PI3K/mTOR inhibitor in MCL

Project description:Phosphatidylinositol-3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathway activation contributes to mantle cell lymphoma (MCL) pathogenesis and drug resistance. However, the use of mTOR inhibitors as single agents have shown limited clinical efficacy in relation with drug activation of feedback loops. Selective PI3K inhibition or dual PI3K/mTOR catalytic inhibition are different therapeutic approaches developed to achieve effective pathway blockage. Here, we evaluated the antitumor activity of a mTOR inhibitor, a pan-PI3K inhibitor and a dual PI3K/mTOR inhibitor in primary MCL cells. We found that dual PI3K/mTOR inhibitor modulated angiogenesis, tumor invasiveness and cytokine signaling compared to a mTOR inhibitor and a pan-PI3K inhibitor in MCL. We used microarrays to compare the effect of these three compounds in MCL and identified distinct classes of down-regulated genes modulated by each compound. Global RNA expression in primary cells from two MCL patients treated with a mTOR inhibitor, a pan-PI3K inhibitor and a dual PI3K/mTOR inhibitor for 8 hours

2013-12-14 | E-GEOD-53309 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data