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Microarray expression data of HT-29 cells treated with spautin-1 or buformin under 2DG- or tunicamycin-stressed conditions

ABSTRACT: Microarray expression data of HT-29 cells treated with spautin-1 or buformin under 2DG- or tunicamycin-stressed conditions

PROVIDER: PRJNA784779 | ENA |

REPOSITORIES: ENA

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Microarray expression data of HT-29 cells treated with spautin-1 or buformin under 2DG- or tunicamycin-stressed conditions

Project description:Spautin-1 as well as buformin showed preferential cytotoxicity under 2-deoxy-D-glucose (2DG)-stressed, but not tunicamycin-stressed conditions in HT-29 cells. By a microarray-based transcription analyses, we previously identified an unfolded protein response (UPR) expression signature, consisting of 246 probes up- or down-regulated in glucose starvation- and 2DG-stressed HT-29 and other cancer cell lines. Thus, we compared the effects of spautin-1 and buformin on the UPR transcriptional program. The two UPR inhibitors partly canceled 2DG-induced, but not TM-induced changes in UPR expression signature, indicating that spautin-1 can indeed suppress the UPR transcriptional program under 2DG-stressed conditions.

2022-07-07 | GSE189850 | GEO

Expression data of colorectal cancer HT-29 cells

Project description:Colorectal cancer HT-29 cell line is a comonly-used human cancer cell line. We have used this cell line for examining the effect of various anticancer compounds on gene expression and we obtained gene expression data of untreated HT-29 cells as a control data for the analysis.

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HT-29 cells treated with IFN-γ

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Folic Acid study in HT-29 cells

Project description:Low intracellular folate levels diminish the growth rate of HT-29 human colon cancer cells. This is accompanied by a metabolic shift from cytosolic glycolysis towards mitochondrial oxidative phosphorylation, as demonstrated by a lower lactate production and an increased mitochondrial oxygen consumption rate. To obtain insight in the molecular effects underlying these changes, the steady state gene expression profiles of HT-29 cells with different intracellular folate concentrations were compared. The gene expression profile of HT-29 cells with low intracellular folate levels (grown for 3 weeks in 10 ng/ml folic acid (PGA)) was clearly distinct from that of the other exposure conditions, which provide sufficient intracellular folate levels (100 ng/ml PGA, 10 ng/ml methyltetrahydrofolate (MTHF) or 100 ng/ml MTHF). Intracellular folate deficiency, contrary to expectation, did not lead to major changes in expression of genes involved in energy metabolism. This suggests that the shift towards mitochondrial oxidative phosphorylation is not mediated at the transcription level. Furthermore, only minor changes in the expression of folate metabolism related genes were observed. The changes that were observed were consistent with nucleotide salvage and in agreement with nucleotide need of the slow-growing folate-deficient HT-29 cells. The major observed effects were on cell cycle related gene expression, which was increased and interferon-responsive gene expression, which was reduced. The increase in cell cycle related gene expression seems compensatory to the reduced cell growth. Down-regulation of the interferon-response may be explained by decreased expression of signal transducer and activator of transcription 1 upon folate deficiency. Keywords: dose response, folic acid, HT-29 cells, human

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Peripheral regions and central regions from HT-29 tumors

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HT-29 cells treated with IFN-γ

Project description:Expression data from HT-29 human colon adenocarcinoma cells treated with IFN-γ for 24 hr Total RNA was isolated from HT-29 cells after 24h stimulation with 200 U ml-1 IFN-γ (Roche). The experiment was done on three biological replicates.

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Effect of sodium butyrate on colorectal cancer cell line HT-29

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