Evidence map›Paper›PMID 19190133›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2009

Establishment and characterization of a model of acquired resistance to epidermal growth factor receptor targeting agents in human cancer cells.

Sergio Benavente, Shyhmin Huang, Eric A Armstrong, Alexander Chi, Kun-Tai Hsu, Deric L Wheeler, Paul M Harari

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
7.9field-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

55 citing papers in PubMed, 96 citations in OpenAlex.

  1. Trial
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  3. Cetuximab and bevacizumab: preclinical data and phase II trial in recurrent or metastatic squamous cell carcinoma of the head and neck.Annals of oncology : official journal of the European Society for Medical Oncology · 2013
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  11. Monoclonal Antibodies in Cancer Therapy.Antibodies (Basel, Switzerland) · 2020
    Review
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  18. Targeted therapy combined with radiotherapy in non-small-cell lung cancer: a review of the Oncologic Group for the Study of Lung Cancer (Spanish Radiation Oncology Society).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2017
    Review
  19. A humanized chimeric antibody Hai178 targeted to the β subunit of F1F0 ATP synthase.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    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 1 institution in 1 country.

Sergio BenaventeDepartment of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53792-0600, USA.
Shyhmin Huang
Eric A Armstrong
Alexander Chi
Kun-Tai Hsu
Deric L Wheeler
Paul M Harari
University of Wisconsin–Madison · US

Funding

EGFR/Radiation Responses and Resistance InteractionsR01CA113448 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI HARARI, PAUL M · 2006 to 2010
$1.3M
NCI NIH HHS R01 CA113448NCI NIH HHS R01 CA 113448-01
6 · The paper itself

Abstract

purposeThe epidermal growth factor receptor (EGFR) is recognized as a key mediator of proliferation and progression in many human tumors. A series of EGFR-specific inhibitors have recently gained Food and Drug Administration approval in oncology. These strategies of EGFR inhibition have shown major tumor regressions in approximately 10% to 20% of advanced cancer patients. Many tumors, however, eventually manifest resistance to treatment. Efforts to better understand the underlying mechanisms of acquired resistance to EGFR inhibitors, and potential strategies to overcome resistance, are greatly needed. EXPERIMENTAL

designTo develop cell lines with acquired resistance to EGFR inhibitors we utilized the human head and neck squamous cell carcinoma tumor cell line SCC-1. Cells were treated with increasing concentrations of cetuximab, gefitinib, or erlotinib, and characterized for the molecular changes in the EGFR inhibitor-resistant lines relative to the EGFR inhibitor-sensitive lines.

resultsEGFR inhibitor-resistant lines were able to maintain their resistant phenotype in both drug-free medium and in athymic nude mouse xenografts. In addition, EGFR inhibitor-resistant lines showed a markedly increased proliferation rate. EGFR inhibitor-resistant lines had elevated levels of phosphorylated EGFR, mitogen-activated protein kinase, AKT, and signal transducer and activator of transcription 3, which were associated with reduced apoptotic capacity. Subsequent in vivo experiments indicated enhanced angiogenic potential in EGFR inhibitor-resistant lines. Finally, EGFR inhibitor-resistant lines showed cross-resistance to ionizing radiation.

conclusionsWe have developed EGFR inhibitor-resistant human head and neck squamous cell carcinoma cell lines. This model provides a valuable preclinical tool to investigate molecular mechanisms of acquired resistance to EGFR blockade.

Indexed as

Drug Resistance, NeoplasmModels, BiologicalAnimalsAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic AgentsApoptosisBiomarkers, TumorCarcinoma, Squamous CellCell CycleCell ProliferationCetuximabErbB ReceptorsErlotinib HydrochlorideGefitinibHead and Neck NeoplasmsAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic AgentsBiomarkers, TumorCetuximabEGFR protein, humanErbB ReceptorsErlotinib HydrochlorideGefitinibProtein Kinase InhibitorsQuinazolines

Identifiers

PMID19190133
PMCPMC2903727
OpenAlexW2144602805

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.