Identification of genes responsive to hypoxia in human cervical epithelial adenocarcinoma HeLa cells
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ABSTRACT:
PROVIDER: PRJNA678012 | ENA |
REPOSITORIES: ENA
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Project description:It has been well-known that cancer cells acquire approximately three-fold radioresistance under hypoxia than under normoxia due to both radiation chemical and radiation biological mechanisms, causing a negative impact on the outcome of radiation therapy. In the present study, to identify genes responsive to hypoxia in human cervical epithelial adenocarcinoma HeLa cells, global-scale gene expression analysis was carried out using a GeneChip® system.
2020-11-13 | GSE161393 | GEO
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 level, 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. We used microarray gene expression profiling and data analysis algorithms to identify and analyze hypoxia-responsive genes in primary human astrocytes. We also compared the gene expression patterns in astrocytes with those in human HeLa cells and pulmonary artery endothelial cells (ECs). Remarkably, in astrocytes, 5 times as many genes were up-regulated as down-regulated, whereas in HeLa and pulmonary ECs, as many or more genes were down-regulated as up-regulated. More genes encoding hypoxia-inducible functions, such as glycolytic enzymes and angiogenic growth factors, were strongly induced in astrocytes compared to HeLa cells. The extent of induction was also greater than in HeLa cells. Further, 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 and HeLa cells to a varying degree. These results provide a global view of the signaling and regulatory network mediating oxygen regulation in astrocytes, in comparison with that in HeLa cells. Keywords: response to hypoxia
2006-03-16 | GSE3051 | GEO
Project description:mRNA, lncRNA, and miRNA signatures were identified to discriminate cervical adenocarcinoma from normal cervix by whole transcriptome sequencing. We confirmed the RNA-seq data in another cohort of clinical cervical tissue samples by qRT-PCR.We demonstrated that miR-192-5p/HNF1A-AS1/VIL1 panel could accurately discriminates adenocarcinoma from normal cervix. Moreover,we also identified the circRNA expression profiles in cervical adenocarcinoma tissues and explored the function roles and mechanisms of circular RNA circEYA1 and circSPIDR in cervical adenocarcinoma cells.
2020-10-13 | GSE145372 | GEO
Project description:Hypoxia is associated with several diseases, including cancer. Circular RNAs (circRNAs) are a novel class of non-coding RNAs that have been implicated in multiple cancers and attract increasing attention as potential biomarkers. In this study, the transcriptome-wide response of human HeLa cervical cancer cells to hypoxia was investigated. The circRNA signatures as well as differential gene expression and alternative splicing were analyzed by integrating available tools with custom approaches for quantification and statistical analysis.
2019-12-04 | GSE131379 | GEO
Project description:Cervical Adenocarcinoma Whole Exome sequencing
| PRJEB41309 | ENA
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
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 level, 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. We used microarray gene expression profiling and data analysis algorithms to identify and analyze hypoxia-responsive genes in primary human astrocytes. We also compared the gene expression patterns in astrocytes with those in human HeLa cells and pulmonary artery endothelial cells (ECs). Remarkably, in astrocytes, 5 times as many genes were up-regulated as down-regulated, whereas in HeLa and pulmonary ECs, as many or more genes were down-regulated as up-regulated. More genes encoding hypoxia-inducible functions, such as glycolytic enzymes and angiogenic growth factors, were strongly induced in astrocytes compared to HeLa cells. The extent of induction was also greater than in HeLa cells. Further, 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 and HeLa cells to a varying degree. These results provide a global view of the signaling and regulatory network mediating oxygen regulation in astrocytes, in comparison with that in HeLa cells. Experiment Overall Design: Gene expression profiles of three independent batches of HeLa cells grown under normoxia were compared to gene expression profiles of three independent batches of HeLa cells grown under 1% oxygen for 24 hours. Affymetrix U133 plus 2.0 microarrays were used.
2008-06-12 | E-GEOD-3051 | biostudies-arrayexpress
Project description:The raw data consists of Transcriptome sequencing of 24 tumor samples and 5 normal samples of cervical adenocarcinoma samples
2022-02-11 | E-MTAB-9281 | biostudies-arrayexpress
Project description:FSCN1 has been reported to be dysregulated in cervical cancers. However, the genome-wide regulated targets of FSCN1 is still unclear in cervical cancers. Here, the gene expression profile of HeLa cells transfected with FSCN1 shRNA (shFSCN1) were compared with cells transfected with empty vector (shCtrl). The results showed that shFSCN1 extensively affects the transcriptional level of 5, 043 genes in HeLa cells. There were more up-regulated genes (3, 870) than down-regulated ones (1, 173) after FSCN1 was knocked down in HeLa cells. GO analysis showed that the up-regulated genes were associated with transcription regulation and DNA binding. The down-regulated genes were enriched in some cancer associated pathway including angiogenesis and cell adhesion. In particular, FSCN1 positilvely regulated ANGPTL4 in HeLa cells. Compared to normal tissue, both FSCN1 and ANGPTL4 showed a higher expression in cervical tumor tissue. Moreover, ANGPTL4 was also positilvely correlated with expression of FSCN1 in cervical tumor tissue of TCGA. In conclusion, our study provide important cues for further study on the regulatory mechanism of FSCN1 in cervical cancer.
2022-01-20 | GSE149450 | GEO
Project description:Whole Transcriptome Sequencing of Cervical Adenocarcinoma
| PRJEB39161 | ENA