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- Lindquist, David, et al.
(author)
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Intense CD44 expression is a negative prognostic factor in tonsillar and base of tongue cancer
- 2012
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In: Anticancer Research. - : International Institute of Anticancer Research. - 0250-7005 .- 1791-7530. ; 32:1, s. 153-161
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Journal article (peer-reviewed)abstract
- BACKGROUND: Patients with tonsillar and base of tongue cancer, which are human papillomavirus (HPV) positive, have a better clinical outcome than those with HPV-negative tumors. The identification of additional predictive markers for response to therapy could still be of great use.MATERIALS AND METHODS: Tumor markers CD44, p16, epidermal growth factor receptor (EGFR), vascular endothelial growth factor (VEGF), E-cadherin, cyclooxygenase-2 (COX 2), Ki-67, and p27 were analyzed by immunochemistry, and HPV status was tested by polymerase chain reaction (PCR) in tumors from 73 patients and correlated to survival.RESULTS: High intensity CD44 staining (p=0.006) and high EGFR expression (p=0.026) were indicators of poor prognosis, while high p16 expression (p=0.021) and younger age (p=0.002) were positive prognostic markers for disease-specific survival. Furthermore, staining of CD44 (p=0.026) and age (p=0.002) were shown to be strong prognostic markers in multivariate analysis, which should be evaluated further for possible use in clinical practice.
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