Evidence map›Paper›PMID 19138956›Full record

ArticleCancer prevention research (Philadelphia, Pa.)2008

Epidermal growth factor receptor abnormalities in the pathogenesis and progression of lung adenocarcinomas.

Ximing Tang, Marileila Varella-Garcia, Ana C Xavier, Erminia Massarelli, Natalie Ozburn, Cesar Moran, Ignacio I Wistuba

Open access · bronzeAbstract read
In one paragraph

Article in Cancer prevention research (Philadelphia, Pa.), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 3 pooled it
9.9field-weighted citation impact, top 2% 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

44 citing papers in PubMed, 3 syntheses or guidelines pooled it, 102 citations in OpenAlex.

  1. Guideline
  2. Guideline
  3. International association for the study of lung cancer/american thoracic society/european respiratory society international multidisciplinary classification of lung adenocarcinoma.Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer · 2011
    Pooled it
  4. Phase II Pilot Study of Vemurafenib in Patients With Metastatic BRAF-Mutated Colorectal Cancer.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2015
    Trial
  5. Trial
  6. A phase II study of gefitinib for aggressive cutaneous squamous cell carcinoma of the head and neck.Clinical cancer research : an official journal of the American Association for Cancer Research · 2012
    Trial
  7. Trial
  8. Article
  9. Review
  10. Article
  11. Article
  12. Frontiers in oncology · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

7 authors at 3 institutions in 1 country.

Ximing TangDepartment of Thoracic/Head and Neck Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030-4009, USA.
Marileila Varella-Garcia
Ana C Xavier
Erminia Massarelli
Natalie Ozburn
Cesar Moran
Ignacio I Wistuba
University of Colorado Cancer Center · USUniversity of Colorado Denver · USThe University of Texas MD Anderson Cancer Center · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
UNIVERSITY OF TEXAS--SPORE IN LUNG CANCERP50CA070907 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI GIBBONS, DON LYNN · 1996 to 2024
$57.4M
NCI NIH HHS CA-16672NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA070907NCI NIH HHS P50CA70907
6 · The paper itself

Abstract

To identify the characteristics and sequence of epidermal growth factor receptor (EGFR) abnormalities relevant to the pathogenesis and progression of lung adenocarcinoma, we performed a precise mapping analysis of EGFR mutation, gene copy number, and total and phosphorylated EGFR protein expression for the same tissue sites. We examined normal bronchial and bronchiolar epithelium (NBE) and tumor tissues obtained from 50 formalin-fixed lung adenocarcinomas, including 24 EGFR-mutant primary tumors with nine corresponding lymph node metastases and 26 wild-type primary tumors. NBE in 12 of 24 (50%) mutant and 3 of 26 (12%) wild-type tumors harbored EGFR mutations; these NBE also showed a lack of EGFR copy number increase and frequent EGFR (69%) and phosphorylated EGFR (33%) overexpression. EGFR mutation and protein overexpression were more frequent in NBE sites within tumors than in NBE sites adjacent to and distant from tumors, suggesting a localized field effect. Sites with high and low EGFR copy numbers were heterogeneously distributed in six of nine primary tumors and in one of eight metastases. EGFR protein overexpression was significantly higher in metastasis sites than in primary tumors. We conclude from our findings that EGFR mutations and protein overexpression are early phenomena in the pathogenesis of lung adenocarcinoma and that EGFR mutation precedes an increase in gene copy number. In EGFR-mutant adenocarcinoma metastases, the higher levels of EGFR overexpression and more homogeneously distributed high gene copy numbers suggest tumor progression. Our findings have important implications for the development of new strategies for targeted chemoprevention and therapy in lung adenocarcinoma using EGFR inhibitors.

Indexed as

Genes, erbB-1AdenocarcinomaDisease ProgressionDNA Mutational AnalysisErbB ReceptorsFemaleGene DosageGene Expression Regulation, NeoplasticGene FrequencyHumansLung NeoplasmsMaleMiddle AgedModels, BiologicalMutationNeoplasm MetastasisErbB Receptors

Identifiers

PMID19138956
PMCPMC3369271
OpenAlexW2132506465

What OpenQuestion holds

Textmetadata
LicenceTDM
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.