Evidence map›Paper›PMID 22242178›Full record

ArticlePloS one2012

Circulating micro-RNAs as potential blood-based markers for early stage breast cancer detection.

Michael G Schrauder, Reiner Strick, Rüdiger Schulz-Wendtland, Pamela L Strissel, Laura Kahmann, Christian R Loehberg, Michael P Lux, Sebastian M Jud, Arndt Hartmann, Alexander Hein and 8 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 129 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
129citing papers in PubMed, 8 pooled it
12.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

129 citing papers in PubMed, 8 syntheses or guidelines pooled it, 252 citations in OpenAlex.

  1. Pooled it
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  6. Diagnostic value of circulating microRNAs as biomarkers for breast cancer: a meta-analysis study.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Pooled it
  7. Analysis of circulating microRNA biomarkers for breast cancer detection: a meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  8. Blood-based multiple-microRNA assay displays a better diagnostic performance than single-microRNA assay in the diagnosis of breast tumor.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
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  10. Plasma microRNAs as novel biomarkers for endometriosis and endometriosis-associated ovarian cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2013
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  19. Involvement of FAM170B-AS1, hsa-miR-1202, and hsa-miR-146a-5p in breast cancer.Cancer biomarkers : section A of Disease markers · 2024
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  20. Article

69 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors at 3 institutions in 2 countries.

Michael G SchrauderDepartment of Obstetrics and Gynaecology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany. Michael.Schrauder@uk-erlangen.de
Reiner Strick
Rüdiger Schulz-Wendtland
Pamela L Strissel
Laura Kahmann
Christian R Loehberg
Michael P Lux
Sebastian M Jud
Arndt Hartmann
Alexander Hein
Christian M Bayer
Mayada R Bani
Swetlana Richter
Boris R Adamietz
Evelyn Wenkel
Claudia Rauh
Matthias W Beckmann
Peter A Fasching
Comprehensive Cancer Center Erlangen · DEFriedrich-Alexander-Universität Erlangen-Nürnberg · DEUniversitätsklinikum Erlangen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMicroRNAs (miRNAs, miRs) are a class of small, non-coding RNA molecules with relevance as regulators of gene expression thereby affecting crucial processes in cancer development. MiRNAs offer great potential as biomarkers for cancer detection due to their remarkable stability in blood and their characteristic expression in many different diseases. We investigated whether microarray-based miRNA profiling on whole blood could discriminate between early stage breast cancer patients and healthy controls.

methodsWe performed microarray-based miRNA profiling on whole blood of 48 early stage breast cancer patients at diagnosis along with 57 healthy individuals as controls. This was followed by a real-time semi-quantitative Polymerase Chain Reaction (RT-qPCR) validation in a separate cohort of 24 early stage breast cancer patients from a breast cancer screening unit and 24 age matched controls using two differentially expressed miRNAs (miR-202, miR-718).

resultsUsing the significance level of p<0.05, we found that 59 miRNAs were differentially expressed in whole blood of early stage breast cancer patients compared to healthy controls. 13 significantly up-regulated miRNAs and 46 significantly down-regulated miRNAs in our microarray panel of 1100 miRNAs and miRNA star sequences could be detected. A set of 240 miRNAs that was evaluated by radial basis function kernel support vector machines and 10-fold cross validation yielded a specificity of 78.8%, and a sensitivity of 92.5%, as well as an accuracy of 85.6%. Two miRNAs were validated by RT-qPCR in an independent cohort. The relative fold changes of the RT-qPCR validation were in line with the microarray data for both miRNAs, and statistically significant differences in miRNA-expression were found for miR-202.

conclusionsMiRNA profiling in whole blood has potential as a novel method for early stage breast cancer detection, but there are still challenges that need to be addressed to establish these new biomarkers in clinical use.

Indexed as

Early Detection of CancerAdultAgedAged, 80 and overArea Under CurveBiomarkers, TumorBreast NeoplasmsDown-RegulationFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansMicroRNAsMiddle AgedNeoplasm StagingOligonucleotide Array Sequence AnalysisBiomarkers, TumorMicroRNAs

Identifiers

PMID22242178
PMCPMC3252341
OpenAlexW2026866676

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.