Westiella intricata UH HT-29-1
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ABSTRACT:
PROVIDER: PRJNA243555 | ENA |
REPOSITORIES: ENA
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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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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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Project description:Gene expression of peripheral regions and central regions from HT-29 tumors
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Project description:Homo sapiens strain:HT-29-MTX Raw sequence reads
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Project description:Analysis of colorectal cancer (CRC) cell line HT-29 treated with Sodium Butyrate. Sodium Butyrate, a HDAC inhibitor present in gut, can differentiate the undifferentiated HT-29 to enterocytes by the induction of brush border enzyme alkaline phosphatase. Results provide the transcriptional profiling underlying the butyrate-induced differentiation of CRC.
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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.
2013-08-06 | E-GEOD-38516 | biostudies-arrayexpress
Project description:The libraries contained in this experiment come from independent growths of cell line HT-29. They are stranded PE101 Illumina Hi-Seq RAMPAGE libraries from rRNA-depleted Total RNA > 200 nucleotides in size. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODE_Data_Use_Policy_for_External_Users_03-07-14.pdf
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