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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]

ABSTRACT: 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]

PROVIDER: PRJNA675760 | ENA |

REPOSITORIES: ENA

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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: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.

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 [patients with Oesophageal Adenocarcinoma]

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 [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 [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 [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

Nuclear activating miR-451a induced cetuximab resistance in HNSCC [microarray]

Project description:To filter the up-regulated gene induced by miR-451a overexpression and in cetuximab resistant HNSCC cell. We employed whole genome microarray. The HNSCC cell CAL27 was used as a control sample. CAL27_CTX, the cetuximab resistant CAL27 was compared with CAL27. The miR-451a overexpressed CAL27_451a sample was compared with the CAL27_NC sample. CAL27_CTX and CAL27_451A samples were collected after 48h of cetuximab treatment. The microarray results were taken together with ChIRP-seq analysis and bioinformatics analysis for miR-451a binding and enhancer analysis to eventually find the nuclear acticating target of miR-451a

2024-01-01 | GSE245159 | GEO

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

Vitamin C supplementation reduces expression of circulating miR-451a in poorly controlled type 2 diabetes mellitus

Project description:Four miRNAs showed significantly different expression post-vitamin C supplementation including the down-regulation of miR-451a, and up-regulation of miR-1253, miR-1290 and miR-644a. Subsequent validation study showed only miR-451a expression was significantly different with supplementation.

2020-07-18 | GSE154647 | GEO

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

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