Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

28 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

MicroRNA profiling of human breast cancer cell lines using five miRNA microarray platforms

ABSTRACT: Analysis of hybridisation performance and utility in identifying differentially expressed miRNAs of six miRNA microarray platforms using three biological samples in quadruplicate.

ORGANISM(S): Homo sapiens

SUBMITTER: Anna Git

PROVIDER: E-MTAB-96 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Systematic comparison of microarray profiling, real-time PCR, and next-generation sequencing technologies for measuring differential microRNA expression.

Git Anna A Dvinge Heidi H Salmon-Divon Mali M Osborne Michelle M Kutter Claudia C Hadfield James J Bertone Paul P Caldas Carlos C

RNA (New York, N.Y.) 20100401 5

RNA abundance and DNA copy number are routinely measured in high-throughput using microarray and next-generation sequencing (NGS) technologies, and the attributes of different platforms have been extensively analyzed. Recently, the application of both microarrays and NGS has expanded to include microRNAs (miRNAs), but the relative performance of these methods has not been rigorously characterized. We analyzed three biological samples across six miRNA microarray platforms and compared their hybri ...[more]

PMID: 20360395

Similar Datasets

Transcription profiling of human breast cancer biopsies taken before and after patients were treated with aromatase inhibitors

Project description:Molecular response to Aromatase Inhibitor Treatment in Primary Breast Cancer

2007-11-29 | E-TABM-180 | biostudies-arrayexpress

MicroRNA signatures predict Estrogen receptor, Progesterone receptor and HER2/neu receptor status in Breast Cancer

Project description:Breast cancer is a heterogeneous disease encompassing a number of phenotypically diverse tumours. Expression levels of the estrogen, progesterone and HER2/neu receptors which characterise clinically distinct breast tumors have been shown to change during disease progression and in response to systemic therapies. Mi(cro)RNAs play critical roles in diverse biological processes and are aberrantly expressed in several human neoplasms including breast cancer, where they function as regulators of tumour behaviour and progression. The aims of this study were to identify miRNA signatures that accurately predict the oestrogen receptor (ER), progesterone receptor (PR) and HER2/neu receptor status of breast cancer patients to provide insight into the regulation of breast cancer phenotypes and progression. Expression profiling of 353 microRNAs was performed in 29 early stage breast cancer specimens. MiRNA signatures associated with ER, PR and HER2/neu status were generated using artificial neural networks (ANN) and expression of specific microRNAs was validated using RQ-PCR. Results: Stepwise artificial neural network (ANN) analysis identified predictive miRNA signatures corresponding with estrogen (miR-342, miR-299, miR-217, miR -190, miR-135b, miR-218), progesterone (miR-520g, miR-377, miR-527-518a, miR-520f-520c) and HER2/neu (miR-520d, miR-181c, miR-302c, miR-376b, miR-30e) receptor status. MiR-342 and miR-520g expression was further analysed in 95 breast tumours. MiR-342 expression was highest in ER and HER2/neu positive luminal B tumours and lowest in triple-negative tumours. MiR-520g expression was elevated in ER and PR negative tumours.

2010-05-18 | E-GEOD-15885 | biostudies-arrayexpress

miRNA profiling in male and female chicken embryonic gonads during sexual differentiation

Project description:MicroRNAs (miRNAs) are a highly conserved class of small RNAs which function in a sequence-specific manner to post-transcriptionally regulate expression of target genes. Tissue-specific miRNA expression studies have discovered numerous functions for miRNAs in various aspects of embryonic development, but a role for miRNAs in gonadal development and sex differentiation has not yet been reported. Using the chicken embryo as a vertebrate model, differential miRNA expression between male and female embryonic gonads, was analysed at three developmental stages (embryonic days (E) 5.5, E6.5 and E9.5), using custom-designed 4x2K CombiMatrix miRNA microarray. The aims of this study were to: 1-identify miRNAs differentialy expressed by sex; 2-identify sex-specific miRNAs; 3-analyse global changes in miRNA up-regulation in male versus female gonads before, during and after the histological onset of sexual differentiation. This study provides a basis for establishing whetehr miRNAs are involved in either initiating or regulating vertebrate gonadal sex differentiation. Keywords: miRNA, sex comparison, developmental stage comparison. miRNA samples from male and female embryonic chicken gonads from three developmental stages: embryonic day (E) 5.5 (Hamilton & Hamburger (HH) stage 27-28), E6.5 (HH stage 29-30) & E9.5 (HH stage 35-36). Samples are listed with biological replicates used for analysis in brackets following: 1 - Male E5.5 (5); 2 - Female E5.5 (4); 3 - Male E6.5 (5); 4 - Female E6.5 (3); 5 - Male E9.5 (4); 6 - Female E9.5 (4).

2010-05-18 | E-GEOD-13154 | biostudies-arrayexpress

Arid3b is required for heart development

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2014-10-07 | E-GEOD-62072 | biostudies-arrayexpress

miRNA profiling of late stage metastatic Her2+ breast cancer

Project description:We have assayed differential miRNA expression between late stage (stage IV) metastatic Her2+ and Her2- breast cancer. 4 late stage metastatic Her2- samples were compared to 3 late stage metastatic Her2+ samples. There are 4 within array replicates for each sample.

2010-04-29 | E-GEOD-20066 | biostudies-arrayexpress

Investigation of the methylation changes occurring during breast cancer pathology

Project description:The experiment was designed to discover deferentially methylated regions between DNA extracted from breast cancer tissues and DNA samples extracted from tissue obtained form breast reduction surgeries. The study involved 20 breast cancer samples and 5 tissue samples from breast reductions. Each of the samples was processed by the arrays and collected data were used to compare the genome wide methylation pattern cancer samples (cases) and breast reduction samples (controls). The methylation pattern of 5 DNA samples from breast reduction was compared with the methylation pattern of 20 DNA samples from breast cancer tumors

2012-12-22 | E-GEOD-43095 | biostudies-arrayexpress

Gene expression in whole mouse E9.0 embryos comparing wt with Arid3b-null embryos

Project description:We have analysed and compared mRNA expression between wt embryos and embryos deficient for Arid3b at E9.0 days of development, with the aim of identifying differentially expressed genes that could give us a clue to the functions of Arid3b during development. Four wild-type and four mutant samples, consisting of 3-4 embryos each, were used.

2014-10-07 | E-GEOD-62068 | biostudies-arrayexpress

Gene expression in E9.5 hearts comparing wt with Arid3b-null embryos

Project description:We have analysed and compared mRNA expression between wt embryos and embryos deficient for Arid3b in E9.5 hearts, with the aim of identifying differentially expressed genes that could give us a clue to the functions of Arid3b during development. Hearts were dissected from E9.5 embryos (including the heart tube and the pharyngeal mesoderm and endoderm located beneath). Four wild-type and four mutant embryos were collected and pooled for each of the microarray triplicates.

2014-10-07 | E-GEOD-62069 | biostudies-arrayexpress

Gene expression in E9.5 heads comparing wt with Arid3b-null embryos

Project description:We have analysed and compared mRNA expression between wt embryos and embryos deficient for Arid3b in E9.5 heads, with the aim of identifying differentially expressed genes that could give us a clue to the functions of Arid3b during development. Heads were dissected from E9.5 embryos (including head and first branchial arch). Four wild-type and four mutant embryos were collected and pooled for each of the microarray triplicates.

2014-10-07 | E-GEOD-62070 | biostudies-arrayexpress

Gene expression in E9.5 trunks comparing wt with Arid3b-null embryos

Project description:We have analysed and compared mRNA expression between wt embryos and embryos deficient for Arid3b in E9.5 trunks, with the aim of identifying differentially expressed genes that could give us a clue to the functions of Arid3b during development. Trunks were dissected from E9.5 embryos (including the body from the otic vesicle to somite 15 and forelimbs). Four wild-type and four mutant embryos were collected and pooled for each of the microarray triplicates.

2014-10-07 | E-GEOD-62071 | biostudies-arrayexpress

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