Document Detail

FGFR1 amplification in squamous cell carcinoma of the lung.
MedLine Citation:
PMID:  23154548     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: Amplification of fibroblast growth factor receptor 1 (FGFR1) has been reported in squamous cell lung carcinoma and may be a molecular target for therapy. Little is known, however, about the clinical and demographic correlates of FGFR1 amplification.
METHODS: The study is an Institutional Review Board approved retrospective analysis of 226 patients with squamous cell lung cancer seen at the Massachusetts General Hospital from 2005 to 2011. Clinical and demographic characteristics of all patients were obtained, as well as treatment details including surgery, radiation, and chemotherapy, and overall survival. fluorescence in situ hybridization was performed for FGFR1 on formalin-fixed paraffin-embedded tumor tissue. Clinical genotyping results were also reviewed where available.
RESULTS: Thirty-seven of 226 patients (16%) with squamous cell lung cancer were found positive for amplification using a definition of amplification of a gene to copy number control ratio of 2.2 or higher. FGFR1 amplification status was not associated with age, sex, stage, histologic subtype within squamous cell, smoking history, or pack-years of smoking. We found no significant difference in overall survival by FGFR1 amplification status as a whole; in the advanced stage subset, our findings are inconclusive because of the small sample size.
CONCLUSION: FGFR1 amplification was found in 16% of a clinical cohort of squamous cell lung cancer patients. The lack of any specific clinicodemographic features that correlates with FGFR1 amplification suggests that all squamous cell patients should be tested for this genomic change.
Rebecca S Heist; Mari Mino-Kenudson; Lecia V Sequist; Swathi Tammireddy; Laura Morrissey; David C Christiani; Jeffrey A Engelman; A John Iafrate
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer     Volume:  7     ISSN:  1556-1380     ISO Abbreviation:  J Thorac Oncol     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-11-16     Completed Date:  2013-05-07     Revised Date:  2013-12-04    
Medline Journal Info:
Nlm Unique ID:  101274235     Medline TA:  J Thorac Oncol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1775-80     Citation Subset:  IM    
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MeSH Terms
Adenocarcinoma / genetics*,  mortality,  pathology
Aged, 80 and over
Carcinoma, Squamous Cell / genetics*,  mortality,  pathology
Gene Amplification*
In Situ Hybridization, Fluorescence
Lung Neoplasms / genetics*,  mortality,  pathology
Middle Aged
Neoplasm Staging
Receptor, Fibroblast Growth Factor, Type 1 / genetics*
Retrospective Studies
Survival Rate
Tumor Markers, Biological / genetics*
Grant Support
Reg. No./Substance:
0/Tumor Markers, Biological; EC protein, human; EC, Fibroblast Growth Factor, Type 1

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