Evidence map›Paper›PMID 21722621›Full record

ArticleThe American journal of pathology2011

Standardization of epidermal growth factor receptor (EGFR) measurement by quantitative immunofluorescence and impact on antibody-based mutation detection in non-small cell lung cancer.

Anastasios Dimou, Seema Agarwal, Valsamo Anagnostou, Hollis Viray, Stephen Christensen, Bonnie Gould Rothberg, Vassiliki Zolota, Konstantinos Syrigos, David L Rimm

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

15 citing papers in PubMed, 21 citations in OpenAlex.

  1. Trial
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  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Detecting EGFR alterations in clinical specimens-pitfalls and necessities.Virchows Archiv : an international journal of pathology · 2013
    Article
  10. Article
  11. Flow induces epithelial-mesenchymal transition, cellular heterogeneity and biomarker modulation in 3D ovarian cancer nodules.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  12. Article
  13. Article
  14. Review
  15. Review
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

9 authors at 3 institutions in 2 countries.

Anastasios DimouDepartment of Pathology, Yale University School of Medicine, New Haven, Connecticut 06520-8023, USA.
Seema Agarwal
Valsamo Anagnostou
Hollis Viray
Stephen Christensen
Bonnie Gould Rothberg
Vassiliki Zolota
Konstantinos Syrigos
David L Rimm
Yale University · USGeneral University Hospital of Patras · GRYale Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Challenges in measurement of epidermal growth factor receptor (EGFR) protein expression have led to conflicting data on its prognostic value and discontinuation of its use for prediction of response. Herein is described a quantitative standardized assay for EGFR and its use in a series of retrospective cohorts of patients with non-small cell lung cancer (NSCLC). The AQUA technology of quantitative immunofluorescence was used in conjunction with Western blot analysis to calculate the absolute concentration of EGFR in two independent NSCLC cohorts (170 from Yale New Haven Hospital and 335 from Sotiria and Patras Hospitals in Greece). EGFR and mutated EGFR were measured using D38B1 antibody and two mutation-specific antibodies. All patients positive or borderline for mutation-specific antibody were genotyped. A threshold for reproducible detection of EGFR was defined as 0.85 ng/μg total protein. EGFR expression demonstrated no prognostic value in either cohort. The mutation rate was 1.79% in the Yale cohort, and 1.52% in the Sotiria/Patras cohort, with no antibody detection-based false-positive cases. No mutations were detected for EGFR concentrations <1.46 ng/μg total protein. In summary, accurate measurement of EGFR still shows no prognostic value in NSCLC. In these two population-based cohorts, the antibody-based EGFR mutation rate was lower than has been frequently reported.

Indexed as

Gene Expression Regulation, NeoplasticAdultAgedAged, 80 and overBlotting, WesternCarcinoma, Non-Small-Cell LungCohort StudiesDNA Mutational AnalysisErbB ReceptorsFemaleGenotypeHumansLung NeoplasmsMaleMicroscopy, FluorescenceMiddle AgedErbB Receptors

Identifiers

PMID21722621
PMCPMC3157192
OpenAlexW1996910715

What OpenQuestion holds

Textmetadata
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.