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Molecular markers predict outcome in squamous cell carcinoma of the head and neck after concomitant cisplatin-based chemoradiation

✍ Scribed by Guido B. van den Broek; Maarten Wildeman; Coen R.N. Rasch; Nicola Armstrong; Ed Schuuring; Adrian C. Begg; Leendert H.J. Looijenga; Rik Scheper; Jacqueline E. van der Wal; Lorian Menkema; Paul J. van Diest; Alfons J.M. Balm; Marie-Louise F. van Velthuysen; Michiel W.M. van den Brekel

Publisher
John Wiley and Sons
Year
2009
Tongue
French
Weight
141 KB
Volume
124
Category
Article
ISSN
0020-7136

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✦ Synopsis

Abstract

Not all patients with squamous cell carcinomas of the head and neck (HNSCC) benefit from concurrent cisplatin‐based chemoradiation, but reliable predictive markers for outcome after chemoradiation are scarce. We have investigated potential prognostic biomarkers for outcome in a large group of patients. Ninety‐one tumor biopsies taken from consecutive HNSCC patients were evaluated for protein expression on a tissue microarray. Using immunohistochemistry, 18 biomarkers, involved in various cellular pathways were investigated. Univariable and multivariable proportional hazard analyses were performed to investigate associations between each individual marker and outcome. In addition, the global test was used to test all variables simultaneously and selected combinations of markers for an overall association with local control. Univariable analysis showed statistically significant increased relative risks of RB, P16 and MRP2 for local control and MDR1 and HIF‐1α for overall survival. MRP2, MDR1 and P16 levels were positively associated with outcome whereas RB and HIF‐1α had a negative relationship. Using Goeman's global testing no combination of markers was identified that was associated with local control. Grouping the markers according to their function revealed an association between a combination of 3 markers (P16, P21 and P27) and outcome (p = 0.05) was found. In the multivariable analysis, MRP2 and RB remained significant independent predictive markers for local control. This study describes the prognostic value of biomarkers for the outcome in patients uniformly treated with concurrent chemoradiation. MRP2 and RB were found to be associated with outcome in patients treated with concurrent chemoradiation. © 2009 Wiley‐Liss, Inc.

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