Volume 36, Issue 9 pp. 1253-1257
Original Article

Fibroblast growth factor receptor-1 as a potential therapeutic target in sinonasal cancer

Andreas Schröck MD

Andreas Schröck MD

Department of Otorhinolaryngology / Head and Neck Surgery, University of Bonn, Germany

Department of Prostate Cancer Research, University of Bonn, Bonn, Germany

Andreas Schröck and Friederike Göke contributed equally to this work.

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Friederike Göke MD

Friederike Göke MD

Department of Prostate Cancer Research, University of Bonn, Bonn, Germany

Institute of Pathology, University of Bonn, Bonn, Germany

Andreas Schröck and Friederike Göke contributed equally to this work.

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Patrick Wagner MD

Patrick Wagner MD

Winchester Medical Center, Winchester, Virginia

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Maike Bode

Maike Bode

Department of Prostate Cancer Research, University of Bonn, Bonn, Germany

Institute of Pathology, University of Bonn, Bonn, Germany

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Alina Franzen

Alina Franzen

Department of Prostate Cancer Research, University of Bonn, Bonn, Germany

Institute of Pathology, University of Bonn, Bonn, Germany

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Sebastian Huss MD

Sebastian Huss MD

Institute of Pathology, University of Cologne, Cologne, Germany

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Abbas Agaimy MD

Abbas Agaimy MD

Institute of Pathology, University of Erlangen, Erlangen, Germany

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Stephan Ihrler MD

Stephan Ihrler MD

Laboratory for Dermatohistology and Oral Pathology, Institute of Pathology, Ludwig Maximilian University of Munich, Munich, Germany

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Robert Kirsten

Robert Kirsten

Department of Prostate Cancer Research, University of Bonn, Bonn, Germany

Institute of Pathology, University of Bonn, Bonn, Germany

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Glen Kristiansen MD

Glen Kristiansen MD

Institute of Pathology, University of Bonn, Bonn, Germany

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Friedrich Bootz MD

Friedrich Bootz MD

Department of Otorhinolaryngology / Head and Neck Surgery, University of Bonn, Germany

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Claudia Lengerke MD

Claudia Lengerke MD

Medical Center II, University of Tuebingen, Tuebingen, Germany

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Sven Perner MD, PhD

Corresponding Author

Sven Perner MD, PhD

Department of Prostate Cancer Research, University of Bonn, Bonn, Germany

Institute of Pathology, University of Bonn, Bonn, Germany

Corresponding author: S. Perner, University Hospital of Bonn, Institute of Pathology, Sigmund-Freud-Str. 25, 53127 Bonn, Germany. E-mail: [email protected]Search for more papers by this author
First published: 03 August 2013
Citations: 10

Abstract

Background

Despite multimodal treatment, sinonasal malignancies have an unfavorable prognosis. The purpose of this study was to elucidate if these tumors harbor amplifications of the fibroblast growth factor receptor 1 (FGFR1) gene, which has recently been identified as a potential therapeutic target in squamous cell lung cancer.

Methods

One hundred twelve primary tumors (including squamous cell carcinoma [SCC], carcinoma associated with an inverted papilloma, sinonasal undifferentiated carcinoma [SNUC], adenocarcinoma, adenoid cystic carcinoma [ACC], esthesioneuroblastoma, and 9 corresponding lymph node metastases) were assessed by fluorescence in situ hybridization (FISH) for FGFR1 copy number status. Human papillomavirus (HPV) status was assessed by p16 immunohistochemical as a surrogate marker.

Results

FGFR1 amplification was found in subsets of sinonasal SCCs (20%), carcinomas associated with an inverted papilloma (33%), and SNUCs (5%). In all cases, metastatic tumor samples shared the same FGFR1 amplification status as the corresponding primary tumor tissue. None of the FGFR1-amplified tumors expressed p16.

Conclusion

FGFR1 amplification represents a potential molecular target in a subset of patients with sinonasal cancer. © 2014 Wiley Periodicals, Inc. Head Neck 36: 1253–1257, 2014

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