Evidence map›Paper›PMID 20803030›Full record

ArticleVirchows Archiv : an international journal of pathology2010

Usefulness of tissue microarrays for assessment of protein expression, gene copy number and mutational status of EGFR in lung adenocarcinoma.

Marius I Ilie, Véronique Hofman, Christelle Bonnetaud, Katia Havet, Virginie Lespinet-Fabre, Céline Coëlle, Virginie Gavric-Tanga, Nicolas Vénissac, Jerôme Mouroux, Paul Hofman

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In one paragraph

Article in Virchows Archiv : an international journal of pathology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
5.8field-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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Optimization ofOncotarget · 2017
    Article
  6. Review
  7. [Immunohistochemical detections of EGFR status in NSCLC].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2015
    Article
  8. Immunohistochemistry with a novel mutation-specific monoclonal antibody as a screening tool for the EGFR L858R mutational status in primary lung adenocarcinoma.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Article
  9. Review
  10. Article
  11. Detecting EGFR alterations in clinical specimens-pitfalls and necessities.Virchows Archiv : an international journal of pathology · 2013
    Article
  12. Article
  13. Review
  14. Article
  15. EGFR exon 19 insertions: a new family of sensitizing EGFR mutations in lung adenocarcinoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2012
    Article
  16. Article
  17. Article
  18. Article
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 1 country.

Marius I IlieLaboratory of Clinical and Experimental Pathology, Louis Pasteur Hospital, 06002 Nice Cedex 01, France.
Véronique Hofman
Christelle Bonnetaud
Katia Havet
Virginie Lespinet-Fabre
Céline Coëlle
Virginie Gavric-Tanga
Nicolas Vénissac
Jerôme Mouroux
Paul Hofman
Hôpital Pasteur · FRInserm · FRUniversité Côte d'Azur · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Specific inhibitors targeting the epidermal growth factor receptor (EGFR) can increase survival rates in certain lung adenocarcinoma patients with mutations in the EGFR gene. Although such EGFR-targeted therapies have been approved for use, there is no general consensus among surgical pathologists on how the EGFR status should be tested in lung adenocarcinoma tissues and whether the results of immunohistochemistry (IHC), fluorescence in situ hybridization (FISH), and mutational analysis by molecular methods correlate. We evaluated the EGFR status in 61 lung adenocarcinomas by IHC (using total and mutant-specific antibodies against EGFR), by FISH analysis on tissue microarrays (TMAs), and by direct sequencing. The results of each method were compared using χ² and κappa statistics. The sensitivity and negative predictive value estimating the presence of abnormal EGFR for each test was calculated. The results show that, with respect to expression patterns and clinicopathological parameters, the total and mutant-specific EGFR detected by immunohistochemistry and FISH analysis on TMAs are valid and are equivalent to conventional methods performed on whole-tissue sections. Abnormal EGFR was detected in 52.4% of patients by IHC, FISH, and sequencing. The best sensitivity (100%) and negative predictive value (100%) was determined by evaluating the EGFR status with all methods. Testing for molecular changes in EGFR using a single test is likely to underestimate the presence of EGFR abnormalities. Taken together, these results demonstrate the high potential of TMAs to test for the major mechanisms of EGFR activation in patients with lung adenocarcinoma.

Indexed as

Gene DosageMutationAdenocarcinomaAdultAgedAged, 80 and overErbB ReceptorsFemaleHumansImmunohistochemistryIn Situ Hybridization, FluorescenceLung NeoplasmsMaleMiddle AgedTissue Array AnalysisErbB Receptors

Identifiers

PMID20803030
OpenAlexW2026948951

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.