Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE161149 | GEO | 2020/12/15

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

MicroRNA Profiling in Oesophageal Adenocarcinoma Cell Lines and Patient Serum Samples Reveals a Role for miR-451a in Radiation Resistance.

Project description:Many patients with Oesophageal Adenocarcinoma (OAC) do not benefit from chemoradiotherapy treatment due to therapy resistance. To better understand the mechanisms involved in resistance and to find potential biomarkers, we investigated the association of microRNAs, which regulate gene expression, with the response to individual treatments, focusing on radiation. Intrinsic radiation resistance and chemotherapy drug resistance were assessed in eight OAC cell lines, and miRNA expression profiling was performed via TaqMan OpenArray qPCR. miRNAs discovered were either uniquely associated with resistance to radiation, cisplatin, or 5-FU, or were common to two or all three of the treatments. Target mRNA pathway analyses indicated several potential mechanisms of treatment resistance. miRNAs associated with the in vitro treatment responses were then investigated for association with pathologic response to neoadjuvant chemoradiotherapy (nCRT) in pre-treatment serums of patients with OAC. miR-451a was associated uniquely with resistance to radiation treatment in the cell lines, and with the response to nCRT in patient serums. Inhibition of miR-451a in the radiation resistant OAC cell line OE19 increased radiosensitivity (Survival Fraction 73% vs. 87%, p = 0.0003), and altered RNA expression. Pathway analysis of effected small non-coding RNAs and corresponding mRNA targets suggest potential mechanisms of radiation resistance in OAC.

| S-EPMC7727862 | biostudies-literature

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [patients with Oesophageal Adenocarcinoma]

Project description:Many patients with Oesophageal Adenocarcinoma (OAC) that undergo chemoradiotherapy do not benefit from treatment due to therapy resistance. We therefore investigated the association of microRNAs, which regulate gene expression, with the response to individual treatments, focusing on radiation, to both better understand the mechanisms involved in resistance and to find potential biomarkers. Intrinsic radiation resistance and chemotherapy drug resistance were assessed in 8 OAC cell lines, and miRNA expression profiling was performed via high throughput qPCR. miRNAs were discovered that were either uniquely associated with resistance to radiation, cisplatin, or 5-FU, or were common to 2 or all 3 of the treatments. Target mRNA pathway analyses indicated several potential mechanisms of treatment resistance. miRNAs associated with the in-vitro treatment responses were then investigated for association with pathologic response to neoadjuvant chemoradiotherapy (nCRT) in pre-treatment serums of 39 patients with OAC. Hsa-miR-451a was associated uniquely with resistance to radiation treatment in the cell lines, and with the response to nCRT in patient serums. Inhibition of hsa-miR-451a in the radiation resistant OAC cell line OE19 increased radiosensitivity (Survival Fraction 73% vs. 87%, p=0.0003), and altered RNA expression. Pathway analysis of effected small non-coding RNAs and corresponding mRNA targets suggest potential mechanisms of radiation resistance in OAC.

2020-12-15 | GSE160614 | GEO

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [control and miR-451a inhibitor treatments]

2020-12-15 | GSE161148 | GEO

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [miRNA-Seq]

2020-12-15 | GSE161088 | GEO

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [baseline RT-PCR]

Project description:miRNA was extracted from a range of Oesophageal Adenocarcinoma cell lines using the miRNeasy Mini Kit (Qiagen, #217004, Chadstone, Australia) and RNase-free DNase Set (Qiagen, #79254, Chadstone, Australia). miRNA was reverse transcribed using a Custom OpenArray® miRNA RT pool (Life Technologies cat # A25630) and the TaqMan® microRNA Reverse Transcription Kit (Life Technologies cat # 4366596). cDNA Pre-amplifications were carried out with a Custom OpenArray® PreAmp pool (Life Technologies cat # 4485255) and TaqMan PreAmp Master Mix (Life Technologies cat # 4488593). PCR runs were performed using a QuantStudio™ 12K Flex Real-Time PCR System. Baseline qPCR expression profiling of miRNAs from 8 oesophageal Adenocarcinoma cell lines, prior to treating the cell lines with either 2Gy ionising radiation, 20 µM Cisplatin, or 50 µM 5-fluorouracil (5-FU).

2020-12-15 | GSE161585 | GEO

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [patients with Oesophageal Adenocarcinoma]

Project description:MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [patients with Oesophageal Adenocarcinoma]

| PRJNA673798 | ENA

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance

Project description:MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance

| PRJNA675755 | ENA

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [control and miR-451a inhibitor treatments]

Project description:MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [control and miR-451a inhibitor treatments]

| PRJNA675760 | ENA

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [miRNA-Seq]

Project description:MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [miRNA-Seq]

| PRJNA675537 | ENA

MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [baseline RT-PCR]

Project description:MicroRNA profiling in oesophageal adenocarcinoma cell lines and patient serum samples reveals a role for miR-451a in radiation resistance [baseline RT-PCR]

| PRJNA678756 | ENA

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

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