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BLM deficiency affects cytotoxicity of temozolomide and olaparib against human glioma cells and induces cellular senescence or polyploidy

ABSTRACT: BLM deficiency affects cytotoxicity of temozolomide and olaparib against human glioma cells and induces cellular senescence or polyploidy

PROVIDER: PRJNA887761 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21829030_1.fastq.gz	Fastqsanger.gz
	SRR21829030_2.fastq.gz	Fastqsanger.gz
	SRR21829031_1.fastq.gz	Fastqsanger.gz
	SRR21829031_2.fastq.gz	Fastqsanger.gz
	SRR21829032_1.fastq.gz	Fastqsanger.gz

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BLM deficiency affects cytotoxicity of temozolomide and olaparib against human glioma cells and induces cellular senescence or polyploidy

Project description:BLM deficient cells responded differently to the temozolomide and olaparib treatment in comparison to the wild type cells. The double treatment evoked cell cycle arrest, cellular senescence or polyploidy in BLM KO LN229 and LN18 cells, respectively.

2023-05-17 | GSE214931 | GEO

Genome-wide analysis of enzalutamide- and/or olaparib-responsive gene expression in prostate cancer cells

Project description:Analysis of enzalutamide- and/or olaparib-responsive gene expression in prostate cancer cells. The hypothesis tested in the present study was that enzalutamide influences the expression of genes that are involved in important bioprocesses in prostate cance rcells, including DNA damage response genes and this effect may synergize with poly(ADP-ribose) polymerase inhibitor olaparib in cytotoxicity to prstate cancer cells. prostate cancer cells were pretreated with enzalutamide or vehicle control DMSO for 24 h, followed by treatment with enzalutamide, olaparib, enzalutamide+olaparib, or vehicle control DMSO for 48 h. Gene expression in enzalutamide+olaparib-treated cells was compared with taht in vehicle control- and single agent-treated cells.

2016-07-03 | E-GEOD-69249 | biostudies-arrayexpress

Olaparib

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TMZ + Olaparib for MGMT Hypermethylated Colorectal Cancer

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Genome-wide analysis of enzalutamide- and/or olaparib-responsive gene expression in prostate cancer cells

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Gene profile of glioblastoma cells treated with y15 and temozolomide

Project description:The gene expression profiles were identified in glioblastoma cells treated with FAK inhibitor Y15, temozolomide alone or with combination of Y15 and Temozolomide DBTRG and U87 were treated with FAK inhibitor Y15 at 10 microM for 24 h; U87 cells were treated with Temozolomide 100 microM for 24 h and Y15+temozolomide at the same dose as each agent alone

2013-01-12 | E-GEOD-43452 | biostudies-arrayexpress

Activation of Wnt signaling promotes olaparib resistant ovarian cancer.

Project description:Sequencing of olaparib-resistant PEO1 derivatives (C4, C5, C10 and C18) and parental PEO1 (P1 and P2) cells was performed in order to determine mechanisms of acquired resistance in the resistant cell lines. PEO1 parental cell lines were authenticated prior to sequencing. PEO1 parental were confirmed to be BRCA2-mutated (5139C>G). Olaparib PEO1 resistant cells were generated through a step-wise escalation of olaparib (10nM to 8uM olaparib). In olaparib resistant lines an increase canonical Wnt signaling and loss of of non-canonical Wnt signaling was observed.

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Transcriptome profiling of Olaparib-resistant (OlapR) prostate cancer cell lines

Project description:Acquisition of resistance to the PARP inhibitor, Olaparib, constitutes a major challenge for the treatment of advanced prostate cancer. The purpose of this study was to identify molecular targets responsible for the development of acquired Olaparib resistance in advanced prostate cancer. Towards this goal, next-generation sequencing (NGS)-based gene expression profiling (RNA-Sequencing; RNA-Seq) was performed on castration-sensitive prostate cancer (CSPC)/Olaparib-sensitive LNCaP cells, castration-sensitive prostate cancer (CSPC)/Olaparib-resistant LN-OlapR cells, castration-resistant prostate cancer (CSPC)/Olaparib-sensitive C4-2B cells, and castration-resistant prostate cancer (CSPC)/Olaparib-resistant 2B-OlapR cells.

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Anti-CD37 radioimmunotherapy with 177Lu-NNV003 synergizes with the PARP inhibitor olaparib in treatment of non-Hodgkin’s lymphoma in vitro

Project description:Background and purpose: PARP inhibitors have been shown to increase the efficacy of radiotherapy in preclinical models. Radioimmunotherapy results in selective radiation cytotoxicity of targeted tumour cells. Here we investigate the combined effect of anti-CD37 β-emitting 177Lu-NNV003 radioimmunotherapy and the PARP inhibitor olaparib, and gene expression profiles in CD37 positive non-Hodgkin’s lymphoma cell lines. Materials and methods: The combined effect of 177Lu-NNV003 and olaparib was studied in seven cell lines using a fixed-ratio ray design, and combination index was calculated for each combination concentration. mRNA was extracted before and after treatment with the drug combination. After RNA-sequencing, hierarchical clustering was performed on basal gene expression profiles and on differentially expressed genes after combination treatment from baseline. Functional gene annotation analysis of significant differentially expressed genes after combination treatment was performed to identify enriched biological processes. Results: The combination of olaparib and 177Lu-NNV003 was synergistic in four of seven cell lines, antagonistic in one and both synergistic and antagonistic in two, depending on the concentration ratio between olaparib and 177Lu-NNV003. Cells treated with the combination significantly overexpressed genes in the TP53 signalling pathway. However, cluster analysis did not identify gene clusters that correlate with the sensitivity of cells to single agent or combination treatment. Conclusion: The cytotoxic effect of the combination of the PARP inhibitor olaparib and the β-emitting radioimmunoconjugate 177Lu-NNV003 was synergistic in the majority of tested lymphoma cell lines.

2022-04-15 | GSE178922 | GEO

ChIP Sequencing of CRISPR/Cas9 corrected Bloom Syndrome patient cell line using antibody against BLM

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2024-04-03 | E-MTAB-11372 | biostudies-arrayexpress

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