Volume 35, Issue 8 pp. 1083-1090
Original Article

Prevalence and predictive role of p16 and epidermal growth factor receptor in surgically treated oropharyngeal and oral cavity cancer

Shamir P. Chandarana MD, MSc

Shamir P. Chandarana MD, MSc

Division of Otolaryngology—Head and Neck Surgery, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada

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Julia S. Lee MS, MPH

Julia S. Lee MS, MPH

Institute for Social Research, University of Michigan, Ann Arbor, Michigan

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Eric J. P. Chanowski MD, MPH

Eric J. P. Chanowski MD, MPH

Department of Otolaryngology—Head and Neck Surgery, University of Michigan Health, System, Ann Arbor, Michigan

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Assuntina G. Sacco MD

Assuntina G. Sacco MD

Department of Internal Medicine, Loyola University Medical Center, Maywood, Illinois

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Carol R. Bradford MD, MS

Carol R. Bradford MD, MS

Department of Otolaryngology—Head and Neck Surgery, University of Michigan Health, System, Ann Arbor, Michigan

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Gregory T. Wolf MD

Gregory T. Wolf MD

Department of Otolaryngology—Head and Neck Surgery, University of Michigan Health, System, Ann Arbor, Michigan

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Mark E. Prince MD

Mark E. Prince MD

Department of Otolaryngology—Head and Neck Surgery, University of Michigan Health, System, Ann Arbor, Michigan

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Jeffrey S. Moyer MD

Jeffrey S. Moyer MD

Department of Otolaryngology—Head and Neck Surgery, University of Michigan Health, System, Ann Arbor, Michigan

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Avraham Eisbruch MD

Avraham Eisbruch MD

Department of Radiation Oncology, University of Michigan Health System, Ann Arbor, Michigan

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Francis P. Worden MD

Francis P. Worden MD

Department of Internal Medicine—Hematology/Oncology, University of Michigan Health System, Ann Arbor, Michigan

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Thomas J. Giordano MD, PhD

Thomas J. Giordano MD, PhD

Departments of Pathology and Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan

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Bhavna Kumar MS

Bhavna Kumar MS

Department of Otolaryngology—Head and Neck Surgery, The Ohio State University, Columbus, Ohio

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Katrina G. Cordell DDS, MS

Katrina G. Cordell DDS, MS

Department of Oral and Maxillofacial Pathology, Louisiana State University Health Sciences Center, New Orleans, Louisiana

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Thomas E. Carey PhD

Thomas E. Carey PhD

Department of Otolaryngology—Head and Neck Surgery, University of Michigan Health, System, Ann Arbor, Michigan

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Douglas B. Chepeha MD, MSPH

Corresponding Author

Douglas B. Chepeha MD, MSPH

Department of Otolaryngology—Head and Neck Surgery, University of Michigan Health, System, Ann Arbor, Michigan

Department of Otolaryngology—Head and Neck Surgery, University of Michigan Health System, 1904 Taubman Center, 1500 E. Medical Center Drive, Ann Arbor, MI 48109-0312Search for more papers by this author
First published: 21 August 2012
Citations: 27

Abstract

Background

The purpose of this study was to describe the relationship of p16 and epidermal growth factor receptor (EGFR) expression with survival in surgically treated patients who had oropharyngeal or oral cavity squamous cell carcinoma (SCC).

Methods

Tissue from 36 patients with oropharyngeal SCC and 49 patients with oral cavity SCC treated between 1997 and 2001 was imbedded and immunostained using a tissue microarray.

Results

The p16 was positive in 57% and 13% of patients with oropharyngeal SCC and oral cavity SCC, respectively. EGFR was positive in 60% and 63% of patients with oropharyngeal SCC and oral cavity SCC, respectively. In patients with oropharyngeal SCC, p16 expression was associated with improved disease-specific survival (DSS), overall survival (OS), and time to recurrence (TTR) (p < .01, < .01, and <.01, respectively). EGFR expression was associated with poorer DSS, OS, and TTR (p < .01, = .01, and < .01, respectively). For oropharyngeal SCC, when examining both p16 and EGFR expression as combined biomarkers, high p16 expression coupled with low EGFR expression was associated with improved DSS (p p16 = .01; p EGFR = .01). Patients with oral cavity SCC showed no association between biomarker and outcome.

Conclusions

For patients with oropharyngeal SCC, high p16 and low EGFR were associated with improved outcome, suggesting a predictive role in surgically treated patients. © 2012 Wiley Periodicals, Inc. Head Neck, 2013

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