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Analysis of gene expression in hypoxic and normoxic HeLa cells.

ABSTRACT: The purpose of experiment is to compare the mRNA expression differences between HeLa cells conditioned with normoxia 21% oxygen and hypoxia 1% oxygen at 6h and 20h.

ORGANISM(S): Homo sapiens

PROVIDER: GSE79069 | GEO | 2016/03/11

SECONDARY ACCESSION(S): PRJNA314855

REPOSITORIES: GEO

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Analysis of gene expression in hypoxic and normoxic HeLa cells.

Project description:The purpose of experiment is to compare the mRNA expression differences between HeLa cells conditioned with normoxia 21% oxygen and hypoxia 1% oxygen at 6h and 20h. Total RNA was obtained from HeLa cells for 4 different conditions, 3 biological replicate experiments were performed, resulting in a total of 12 samples.

2016-03-11 | E-GEOD-79069 | biostudies-arrayexpress

RNA-seq of HeLa cells stably overexpressing SRSF6-GFP grown under normoxic and hypoxic conditions

Project description:We used HeLa cells that overexpress GFP-tagged SRSF6 (4-fold) were grown in normal conditions (Normoxia, 21% oxygen) or hypoxic conditions (Hypoxia, 0.2% oxygen). compared the binding pattern of SRSF6 between normoxia, 4h hypoxia and 24h hypoxia.

2023-01-03 | GSE198308 | GEO

Gene expression profile of normoxic versus hypoxic HeLa cells

Project description:To identify new primary HIF target genes we cultured HeLa cells under short period (6 hours) of mild hypoxia (1% oxygen) Hypoxia-induced gene expression in HeLa cells was measured after 6h exposure to 1% oxygen and compare to normoxic

2011-11-08 | E-GEOD-33521 | biostudies-arrayexpress

Transcriptome-wide mapping of RNA:protein interactions of SRSF6 in HeLa cells grown under normoxic and hypoxic conditions by iCLIP

Project description:We used HeLa cells that express GFP-tagged SRSF6 at physiological levels and subjected them to 4 h or 24 h hypoxia (0.2% oxygen). Cells grown in normal conditions were used as control (Normoxia, 21% oxygen). We performed iCLIP using anti-GFP antibodies and compared the binding pattern of SRSF6 between normoxia, 4h hypoxia and 24h hypoxia.

2023-01-03 | GSE198309 | GEO

Gene expression profile of normoxic versus hypoxic HeLa cells

Project description:To identify new primary HIF target genes we cultured HeLa cells under short period (6 hours) of mild hypoxia (1% oxygen)

2011-11-08 | GSE33521 | GEO

Transcription profiling of HeLa cell line and primary human astrocytes under normoxic and hypoxic conditions to identify hypoxia-responsive genes in primary human astrocytes

Project description:Oxygen is vital for the development and survival of mammals. In response to hypoxia, the brain initiates numerous adaptive responses at the organ level as well as at the molecular and cellular levels, including the alteration of gene expression. Astrocytes play critical roles in the proper functioning of the brain; thus the manner in which astrocytes respond to hypoxia is likely important in determining the outcome of brain hypoxia. Here, we used microarray gene expression profiling and data-analysis algorithms to identify and analyze hypoxia-responsive genes in primary human astrocytes. We also compared gene expression patterns in astrocytes with those in human HeLa cells and pulmonary artery endothelial cells (ECs). Remarkably, in astrocytes, five times as many genes were induced as suppressed, whereas in HeLa and pulmonary ECs, as many as or more genes were suppressed than induced. More genes encoding hypoxia-inducible functions, such as glycolytic enzymes and angiogenic growth factors, were strongly induced in astrocytes compared with HeLa cells. Furthermore, gene ontology and computational algorithms revealed that many target genes of the EGF and insulin signaling pathways and the transcriptional regulators Myc, Jun, and p53 were selectively altered by hypoxia in astrocytes. Indeed, Western blot analysis confirmed that two major signal transducers mediating insulin and EGF action, Akt and MEK1/2, were activated by hypoxia in astrocytes. These results provide a global view of the signaling and regulatory network mediating oxygen regulation in human astrocytes.. This SuperSeries is composed of the following subset Series:; GSE3045: Astrocytic response to hypoxia; GSE3051: HeLa response to hypoxia Experiment

2007-10-26 | E-GEOD-4483 | biostudies-arrayexpress

Profile of mRNAs associated with Ago (Argonaute) 1 in normoxic and hypoxic endothelial cells

Project description:Messenger RNAs that are bound to Ago1 is to be transcriptionally or translational suppressed. Therefore the changes in Ago1-associated transcripts indicate the changes of suppression of these genes. We used microarrays to detail changes of mRNA transcripts that are associated with Ago1 in endothelial cells under normoxia and hypoxia conditions. Human umbilical vein endothelial cells pooled from 8 different sources were subjected to normoxia (21% oxygen, Nx) or hypoxia (2% hypoxia, Hx) for 24 hr. Ago1 was immunoprecipitated with mouse anti-human Ago1 using a lysis buffer containing 0.1% NP-40. The associated RNA was extracted and hybridized on Affymetrix Human Gene 1.0 ST arrays.

2013-06-30 | E-GEOD-43165 | biostudies-arrayexpress

Transcription profiling of mouse embryonic fibroblasts C57Bl/6x129/Sv F2 e14.5 embryos vs controls grown in hypoxic or normoxic conditions

Project description:The CH1 protein interaction domain of the transcriptional coactivators p300 and CBP is thought to interact with HIF-1alpha and this interaction is thought to be critical to the expression of HIF-1alpha target genes in response to hypoxia. To test the requirement of the CH1 domain for gene expression in response to hypoxia, rimary mouse embryonic fibroblasts (MEFs) were generated from C57Bl/6x129/Sv F2 e14.5 embryos that contain a deletion in the CH1 domain of three of four alleles of CBP and p300. The remaining allele of p300 or CBP was a conditional knock out allele. Control MEFs with only a single conditional knockout allele of p300 or CBP were also generated. At passage 3 MEFs were infected with Cre Adenovirus and grown until they had expanded at least 100 fold. Subconfluent MEFs were treated with 21% oxygen (normoxia) or 0.1% oxygen (hypoxia) with 5% carbon dioxide at 37 C in a humid chamber for 6hrs. At the start of treatment, medium was removed and replaced with medium (DMEM+10% FBS+pen-strep+ l-glu) that had been preequilibrated overnight in normoxia or hypoxia as appropriate. Immediately after treatment, cells were lysed in Trizol for RNA extraction. 12 samples; 4 genotypes [CBP+/flox (flox1), p300 +/flox (flox2), CBP CH1/flox;p300 CH1/CH1 (triCH1flox1),CBP CH1/CH1;p300 CH1/flox (triCH1flox2)] , 2 treatments (normoxia and hypoxia).

2007-12-15 | E-GEOD-3196 | biostudies-arrayexpress

Histone methylation landscape in response to short hypoxic exposure

Project description:H3K4me3 and H3K36me3 ChIP seq in HeLa cells exposed to 0H (normoxia) or 1H of 1%O2 (hypoxia)

2019-01-16 | GSE120339 | GEO

RNA sequencing data for hypoxic and normoxic vessels

Project description:We report the application of single-molecule-based sequencing technology for high-throughput profiling of mouse pulmonary arteries (main, right and left extralobar branches) from C57BL/6 mice exposed to 6 weeks or hypoxia (FiO2 10%) and normoxia (FiO2%)

2021-08-25 | GSE182564 | GEO

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