Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Identification of mechanism of cancer-cell-specific reactivation of hTERT offers therapeutic opportunities for blocking telomerase specifically in human colorectal cancer

ABSTRACT: Identification of mechanism of cancer-cell-specific reactivation of hTERT offers therapeutic opportunities for blocking telomerase specifically in human colorectal cancer

PROVIDER: PRJNA684614 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	SRR13243045_1.fastq.gz	Fastqsanger.gz
	SRR13243045_2.fastq.gz	Fastqsanger.gz
	SRR13243046_1.fastq.gz	Fastqsanger.gz
	SRR13243046_2.fastq.gz	Fastqsanger.gz
	SRR13243047_1.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 40

Similar Datasets

Identification of mechanism of cancer-cell-specific reactivation of hTERT offers therapeutic opportunities for blocking telomerase specifically in human colorectal cancer

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-01-08 | GSE163077 | GEO

HoxC5 and Pbx4 repress hTERT to limit telomerase activity

Project description:Telomere elongation by telomerase is critical for the proliferation of human stem cells and >85-90% of cancer cells. The repression of telomerase activity during cellular differentiation promotes replicative aging and function as a physiological barrier for tumorigenesis in long-lived mammals, including humans. However, the underlying mechanisms remain unclear. We found that HoxC5 repressed hTERT, via a previously uncharacterized upstream enhancer element. HoxC5 interacts with co-repressors Pbx4 and Meis3, and recruits Class I histone deacetylases, to mediate repression of hTERT. The upstream enhancer element are conserved in long-lived primates, and HOXC5 are activated upon differentiation, consistent with diminished telomerase activity. Thus, HoxC5/Pbx4/Meis3 together constitute a developmental-controlled regulatory loop that coordinates transcriptional repression of hTERT.

2018-02-13 | GSE97570 | GEO

hTERT promotes cell adhesion and migration independent of telomerase activity

Project description:We sequenced mRNA from 6 human cell lines stably over-expressed specific gene or empty vector, and searched for differently expressed genes after gene over-expression as compared to empty vector. mRNA levels were compared as following pairs: U2OS+hTERT vs U2OS+vector; U2OS+hTERTmut vs U2OS+vector; VA-13+hTERT vs VA-13+vector; VA-13+hTERTmut vs VA-13+vector.

2015-09-22 | E-GEOD-73277 | biostudies-arrayexpress

GSK3 activates telomerase by regulating dynamic behaviour of multiple transcription factors converging on the hTERT gene

Project description:Telomerase controls cell immortality and is a promising cancer target. Understanding transcriptional regulation of the catalytic subunit hTERT is critical to realise effective telomerase therapeutics. GSK3 inhibition suppresses hTERT expression.

2009-08-03 | GSE14532 | GEO

Mutated RNA component of the telomerase induces apoptosis via GADD45-? in hTERT-overexpressing primary fibroblasts

Project description:Mutant template human telomerase RNAs (MT-hTers) have been shown to induce apoptosis in various cancerous cells that have high telomerase activity. However, the exact mechanisms by which MT-hTers inhibit the growth of cancer cells and affect normal somatic cells remain largely unknown. To determine the effects of MT-hTers on normal cells, MT-hTer-47A and -AU5 were introduced into IMR90 primary lung fibroblasts that have very low endogenous hTERT levels. Growth of IMR90 cells following MT-hTers infection was not impaired, however, cell proliferation of IMR90 wild-type hTERT (WT-hTERT) cells under MT-hTers-47A and -AU5 treatment was inhibited and increased cell death was observed. FACS analysis also showed that these cells underwent apoptosis. Confocal microscopy revealed that MT-hTers induced DNA damage foci, i.e., 53BP1 and ?-H2AX, in immortalized IMR90 WT-hTERT cells. Microarray analysis of the IMR90 WT-hTERT MT-hTer-47A and -AU5 versus IMR90 MT-hTer-47A and -AU5 revealed that GADD45-? was significantly elevated, and this result was further confirmed following RT-PCR and real time PCR assays. Moreover, we have showed that MT-hTers induce ATM phosphorylation at Ser 1981 in IMR90 WThTERT cells, and Western analysis revealed high levels of phospho p53 expression in these cells following activation of ATM. Our results also suggest that p53-dependent apoptosis in MT-hTers-infected IMR90 WT-hTERT cells could be due to a decreased expression of TRF2. Taken together, we propose a model that MT-hTers induce DSBs-like damages and trigger programmed cell death in IMR90 WT-hTERT cells following ATM-mediated phosphorylation of p53, which in turn upregulate GADD45-?, ultimately leading to apoptosis. MT-hTer-47A and -AU5 were introduced into IMR90 primary lung fibroblasts and immortalized IMR90 WT-hTERT cells. Through microarray analysis, gene expression of MT-hTer-infected IMR90 WT-hTERT cells were compared against MT-hTer-infected IMR90 control cells.

2011-05-28 | E-GEOD-24975 | biostudies-arrayexpress

Human gastric mucosa Cells: hTERT-negative para cancerous tissue (Control) vs. hTERT-positive gastric cancer tissue

Project description:The miRNA expression profiles in one pair of hTERT-positive gastric cancer tissue and an hTERT-negative para-cancerous tissue. The para-cancerous tissue is at least 5cm away from the cancer tisse. The expression of hTERT of identified by immunohistochemistry before RNA extraction for miRNA assay.

2013-05-21 | GSE47107 | GEO

Human gastric mucosa: 3 paired hTERT-negative para cancerous tissue (Control) vs. hTERT-positive gastric cancer tissue

2014-06-26 | GSE58828 | GEO

Human gastric mucosa Cells: hTERT-negative para cancerous tissue (Control) vs. hTERT-positive gastric cancer tissue

2013-05-21 | E-GEOD-47107 | biostudies-arrayexpress

Human gastric mucosa: 3 paired hTERT-negative para cancerous tissue (Control) vs. hTERT-positive gastric cancer tissue

Project description:The lncRNA expression profiles in three pairs of hTERT-positive gastric cancer tissue sand hTERT-negative para-cancerous tissues. The para-cancerous tissue is at least 5cm away from the cancer tissue. The expression of hTERT of identified by immunohistochemistry before RNA extraction for lncRNA assay. LncRNAs/mRNAs in 3 gastric cancer tissue and 3 paired para-cancerous tissue (Control) by microarray using Arraystar Human LncRNA Microarray v2.0

2014-06-26 | E-GEOD-58828 | biostudies-arrayexpress

IMR90 hTERT

Project description:Transcription profiling from young and pre-senescent IMR90 cells, transfected either with hTERT (pBabe-puro-hTERT) or vector control (pBabe-puro). Population doubling values are contained in Characteristics[generation] column.

2014-06-17 | E-MTAB-2087 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data