Evidence map›Paper›PMID 23419122›Full record

ArticleDiagnostic pathology2013

Immunohistochemical detection of mutations in the epidermal growth factor receptor gene in lung adenocarcinomas using mutation-specific antibodies.

Yan Xiong, Yun Bai, Nufatt Leong, Todd S Laughlin, Paul G Rothberg, Haodong Xu, Lin Nong, Jing Zhao, Ying Dong, Ting Li

Open access · goldAbstract read
In one paragraph

Article in Diagnostic pathology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Detection of epidermal growth factor receptor mutations in non-small cell lung cancer by immunohistochemistry.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2021
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  10. [Influence of Immunohistochemistry Scoring Criteria in Detecting EGFR Mutations].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2015
    Article
  11. Article
  12. Article
  13. [Immunohistochemical detections of EGFR status in NSCLC].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2015
    Article
  14. [Immunohistochemical detections of EGFR mutations in NSCLC].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2014
    Review
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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

10 authors at 3 institutions in 2 countries.

Yan Xiong
Yun Bai
Nufatt Leong
Todd S Laughlin
Paul G Rothberg
Haodong Xu
Lin Nong
Jing Zhao
Ying Dong
Ting Li
Peking University · CNUniversity of Rochester Medical Center · USPeking University First Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe recent development of antibodies specific for the major hotspot mutations in the epidermal growth factor receptor (EGFR), L858R and E746_A750del, may provide an opportunity to use immunohistochemistry (IHC) as a screening test for EGFR gene mutations. This study was designed to optimize the IHC protocol and the criteria for interpretation of the results using DNA sequencing as the gold-standard.

methodsTumor sections from fifty lung adenocarcinoma specimens from Chinese patients were immunostained using L858R and E746_A750del-specific antibodies using three different antigen retrieval solutions, and the results were evaluated using three different sets of criteria. The same specimens were used for DNA purification and analysis of EGFR gene mutations.

resultsIn this study the optimal buffer for antigen retrieval was EDTA (pH 8.0), and the optimal scoring method was to call positive results when there was moderate to strong staining of membrane and/or cytoplasm in >10% of the tumor cells. Using the optimized protocol, L858R-specific IHC showed a sensitivity of 81% and a specificity of 97%, and E746_A750del-specific IHC showed a sensitivity of 59% and a specificity of 100%, both compared with direct DNA analysis. Additionally, the mutant proteins as assessed by IHC showed a more homogeneous than heterogeneous pattern of expression.

conclusionsOur data demonstrate that mutation-specific IHC, using optimized procedures, is a reliable prescreening test for detecting EGFR mutations in lung adenocarcinoma. VIRTUAL SLIDES: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/2059012601872392.

Indexed as

AntibodiesImmunohistochemistryMutationAdenocarcinomaAdenocarcinoma of LungAntibody SpecificityBuffersChinaDNA Mutational AnalysisErbB ReceptorsExonsHumansHydrogen-Ion ConcentrationLung NeoplasmsPredictive Value of TestsProspective StudiesAntibodiesBuffersEGFR protein, humanErbB Receptors

Identifiers

PMID23419122
PMCPMC3635899
OpenAlexW2152523993

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.