Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

MicroRNA-449a Enhances Radiosensitivity in Lung Adenocarcinoma Cells

ABSTRACT: Twenty-five miRNAs were identified as having differential expression post-irradiation in CL1-0 or CL1-5 cells. Among these miRNAs, miR-449a, which was down-regulated in CL1-0 cells at 24 h after irradiation, was chosen for further investigation. Overexpression of miR-449a in CL1-0 cells effectively increased irradiation-induced DNA damage and apoptosis, altered the cell cycle distribution and eventually led to sensitization of CL1-0 to irradiation. MiR-449a might be a novel radiosensitizer for clinical applications. Two lung adenocarcinoma cell lines (CL1-0 and CL1-5) with different metastatic ability and radiosensitivity were used. In order to understand the regulatory mechanisms of differential radiosensitivity in these isogenic tumor cells, both CL1-0 and CL1-5 were treated with 10 Gy radiation, and were harvested respectively at 0, 1, 4, and 24 h after radiation exposure. The changes in expression of miRNA upon irradiation were examined using Illumina Human microRNA BeadChips.

ORGANISM(S): Homo sapiens

SUBMITTER: Mong-Hsun Tsai

PROVIDER: E-GEOD-40602 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

MicroRNA-449a Enhances Radiosensitivity in Lung Adenocarcinoma Cells

Project description:Twenty-five miRNAs were identified as having differential expression post-irradiation in CL1-0 or CL1-5 cells. Among these miRNAs, miR-449a, which was down-regulated in CL1-0 cells at 24 h after irradiation, was chosen for further investigation. Overexpression of miR-449a in CL1-0 cells effectively increased irradiation-induced DNA damage and apoptosis, altered the cell cycle distribution and eventually led to sensitization of CL1-0 to irradiation. MiR-449a might be a novel radiosensitizer for clinical applications.

2012-12-30 | GSE40602 | GEO

Cellular plasticity upon proton irradiation determines tumor cell radiosensitivity

Project description:Novel particle therapy was implemented into standard-of-care for cancer patients during the last years. However, experimental studies investigating cellular and molecular mechanisms are lacking although prognostic biomarker are urgently needed. The cancer stem cell (CSC)-related marker aldehyde dehydrogenase (ALDH) is known to impact on prostate cancer radiosensitivity through affecting defense against reactive oxygen species (ROS), reducing DNA damage repair and increasing cell survival. Surprisingly, we could show in a previous study that ionizing radiation itself enriches for ALDH-positive CSCs in a time- and dose-dependent manner through alteration in histone methylation. Within the present study, we investigated CSC marker dynamics upon proton beam irradiation and hypothesized that this novel particle therapy may have increased CSC targeting potential due to its increased ionization potential compared to conventional photon irradiation. However, we found that proton irradiation is affecting cellular dynamics and escape from cell death.

2021-12-31 | GSE192817 | GEO

Transcription profiling of human cells line with different D10 values to assay radiosensitivity

Project description:Expression analysis between cell lines that show different "D10" which is one of the parameters for radiosensitivity. This experiment includes three experimental factors: cell line, irradiation dose and time after irradiation.

2006-01-06 | E-MEXP-272 | biostudies-arrayexpress

Transcription profiling of human cells line with different Dq values to assay radiosensitivity

Project description:Expression analysis between cell lines that show different "Dq" which is one of the parameters for radiosensitivity. This experiment includes three experimental factors: cell line, irradiation dose and time after irradiation.

2006-01-16 | E-MEXP-273 | biostudies-arrayexpress

Cellular plasticity upon proton irradiation determines tumor cell radiosensitivity [methylation]

2022-01-03 | GSE192899 | GEO

Serum miRNA expression profile of nasopharyngeal carcinoma with different radiosensitivity

Project description:Nasopharyngeal carcinoma is a squamous cell carcinoma arising from the nasopharynx epithelium. So far, there have been no effective biomarkers to predict the radiosensitivity of NPC. Based on miRNA profile screened out from NPC patients with different radiosensitivity, this study was conducted to explore the correlation between serum miRNAs and radiotherapy response in NPC, and to identify biomarkers for predicting the radiosensitivity of NPC.

2020-03-30 | GSE139164 | GEO

A study on the radiosensitivity of radiation-induced lung injury at the acute phase based on single-cell transcriptomics

Project description:Radiation-induced lung injury (RILI) is the most common complication associated with chest tumors, such as lung and breast cancers, after radiotherapy; however, the pathogenic mechanisms are unclear.Here, a single-cell transcriptome map was established in a mouse model of acute RILI. In total, 18,500 single-cell transcripts were generated, and 10 major cell types were identified. The heterogeneity and radiosensitivity of each cell type or subtype in the lung tissues during the acute stage were revealed. It was found that immune cells had higher radiosensitivity than stromal cells. Immune cells were highly heterogeneous in terms of radiosensitivity, while some immune cells had the characteristics of radiation resistance. Two groups of radiation-induced Cd8+Mki67+ T cells and Cd4+Cxcr6+ helper T cells were identified. In summary, This study investigated the dynamic changes in the cellular microenvironment during acute lung injury.

2022-06-21 | GSE206426 | GEO

Transient transfection of miR-449 family in the hepatocellular carcinoma cell line HLE

Project description:In this study, we comparatively analyzed the members of the miR-449 family (miR-449a, miR-449b, and miR-449c) with regards to their target genes and functional effects in hepatocellular carcinoma (HCC). Microarray analysis after transient transfection of miR-449a, miR-449b, and/or miR-449c in the HCC cell line HLE identified putative target genes of miR-449a, miR-449b, and miR-449c. For transient overexpression of miRNAs, the HCC cell line HLE was transfected with 50 nM Allstars Negative Control or miScript miRNA mimics. MiRNA mimics for miR-449a, miR-449b, and miR-449c were either single transfected or cotransfected in equimolar amounts (16.7 nM each). Global mRNA expression profiling was performed utilizing pooled RNA of three biological replicates per microarray and two microarrays per condition.

2015-11-06 | E-GEOD-74710 | biostudies-arrayexpress

Cellular plasticity upon proton irradiation determines tumor cell radiosensitivity

Project description:Cellular plasticity upon proton irradiation determines tumor cell radiosensitivity

| PRJNA793260 | ENA

MicroRNA-769-3p down-regulated NDRG1 and enhanced apoptosis in MCF-7 during reoxygenation.

Project description:In this study, breast cancer MCF-7 cells were cultured under 0.5% oxygen for 24 h followed by 24 h of reoxygenation. Cells was harvested at 0, 1, 12, and 24 h during reoxygenation, and examined the miRNA profile by Nanostring nCounter. Forty-three miRNAs had dramatic changes as compared with 0 h upon reoxygenation, with 63% (n=27) of the miRNAs up-regulated upon reoxygenation. Among these miRNAs, miR-769-3p, which was down-regulated in MCF-7 upon reoxygenation, was chosen for further investigation. The hypothesis was that the down-regulation of NDRG1 upon reoxygenation was regulated by miRNAs. To examine wether miRNAs regulate NDRG1 under 0.5% O2 concentrations, the miRNA expression profiles of MCF-7 cells under reoxygenation were examined. Cells were harvested at 0 (hypoxia control), 1, 12, and 24 h upon reoxygenation. Each profile was done in triplicate. The genomic profile of miRNAs was measured using NanoString nCounterÂ® miRNA Expression Assays.

2016-10-23 | E-GEOD-51689 | 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