LncRNA Mitochondrial oxygen responsive transcript 1 (MTORT1) downstream gene microarray
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ABSTRACT:
PROVIDER: PRJNA659997 | ENA |
REPOSITORIES: ENA
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Project description:Long non-coding RNAs (lncRNAs) have been regarded to participate in multiple genetic pathways in cancer. Also, mitochondria-associated lncRNAs have been discovered to module mitochondrial function and metabolism. Previously, our lab identified oxygen responsive lncRNAs in breast cancer MCF-7 cells under normoxic, hypoxic and re-oxygenated conditions by using next generation sequencing technology. Among them, a novel mitochondrial lncRNA Mitochondrial Oxygen Responsive Transcript 1 (MTORT1) was chosen for further investigation. Therefore, the purpose of this study was to investigate the characterizations, function roles, and mechanisms of MTORT1 in breast cancer cells.
2021-06-23 | GSE157060 | GEO
Project description:Previous studies have identified oxygen-responsive lncRNAs as having a role in the onset of several cancers. However, the lncRNAs regulated by oxygen in breast cancer have not been identified. In this study, we hypothesized that a group of lncRNAs were regulated by oxygen in breast cancer. To identify the oxygen-responsive lncRNAs, next-generation sequencing was performed
2017-12-31 | GSE84167 | GEO
Project description:Low-oxygen stress associated with natural phenomena such as waterlogging, results in widespread transcriptome changes and a metabolic switch from aerobic respiration to anaerobic fermentation. High-throughput sequencing of small RNA libraries obtained from low-oxygen stressed and control root tissue identified a total of 65 unique microRNA (miRNA) sequences from 46 families, and 14 trans-acting small interfering RNA (tasiRNA) from 3 families. Low-oxygen stress resulted in changes to the abundance of 46 miRNAs from 19 families, and all 3 tasiRNA families. Chemical inhibition of mitochondrial respiration caused similar changes in expression in a majority of the low-oxygen responsive small RNAs analysed. Our data indicate that miRNAs and tasiRNAs play a role in gene regulation and possibly developmental responses to low oxygen, and that a major signal for these responses is likely to be dependent on mitochondrial function. Keywords: Small RNA transcriptome analysis
2009-10-01 | GSE16971 | GEO
Project description:Low-oxygen stress associated with natural phenomena such as waterlogging, results in widespread transcriptome changes and a metabolic switch from aerobic respiration to anaerobic fermentation. High-throughput sequencing of small RNA libraries obtained from low-oxygen stressed and control root tissue identified a total of 65 unique microRNA (miRNA) sequences from 46 families, and 14 trans-acting small interfering RNA (tasiRNA) from 3 families. Low-oxygen stress resulted in changes to the abundance of 46 miRNAs from 19 families, and all 3 tasiRNA families. Chemical inhibition of mitochondrial respiration caused similar changes in expression in a majority of the low-oxygen responsive small RNAs analysed. Our data indicate that miRNAs and tasiRNAs play a role in gene regulation and possibly developmental responses to low oxygen, and that a major signal for these responses is likely to be dependent on mitochondrial function. Keywords: Small RNA transcriptome analysis Examination of root tissue under 2 different environments, control and low oxygen
2009-09-30 | E-GEOD-16971 | biostudies-arrayexpress
Project description:- Background and Aims: Oxygen can fall to low concentrations within plant tissues, either because of environmental factors that decrease the external oxygen concentration or because the movement of oxygen through the plant tissues cannot keep pace with the rate of oxygen consumption. Recent studies document that plants can decrease their oxygen consumption in response to relative small changes in oxygen concentrations to avoid internal anoxia. The molecular mechanisms underlying this response have not been identified yet. The aim of this study was to use transcript and metabolite profiling to investigate the genomic response of Arabidopsis roots to a mild decrease in oxygen concentrations. - Methods: Arabidopsis seedlings were grown on vertical agar plates at 21, 8, 4 and 1% (v/v) external oxygen for 0.5, 2 and 48h. Roots were analyzed for changes in transcript levels using Affymetrix whole genome DNA microarrays, and for changes in metabolite levels using routine GC-MS based metabolite profiling. Root extension rates were monitored in parallel to investigate adaptive changes in growth. - Key results: Results show that root growth was inhibited and transcript and metabolite profiles were significantly altered in response to a moderate decrease in oxygen concentrations. Low oxygen leads to a preferential up-regulation of genes that might be important to trigger adaptive responses in the plant. A small but highly specific set of genes is induced very early in response to a moderate decrease in oxygen concentrations. Genes that were down-regulated mainly encoded proteins involved in energy-consuming processes. In line with this, root extension growth was significantly decreased which will ultimately save ATP and decrease oxygen consumption. This was accompanied by a differential regulation of metabolite levels at short and long term incubation at low oxygen. - Conclusions: Results show that there are adaptive changes in root extension involving large-scale reprogramming of gene expression and metabolism when oxygen concentration is decreased in a very narrow range.
2008-09-01 | GSE11558 | GEO
Project description:Regulation of cellular sterol homeostasis by the oxygen responsive noncoding RNA lincNORS
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2017-12-31 | GSE72881 | GEO
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