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Research ArticleClinical Studies

The Impact of Stromal Cell Contamination on Chemosensitivity Testing of Head and Neck Carcinoma

RALPH DOLLNER, CHRISTOF GRANZOW, BURKHARD M. HELMKE, ALEXANDRA RUESS, ARNO SCHAD and ANDREAS DIETZ
Anticancer Research January 2004, 24 (1) 325-332;
RALPH DOLLNER
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CHRISTOF GRANZOW
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BURKHARD M. HELMKE
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ALEXANDRA RUESS
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ARNO SCHAD
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ANDREAS DIETZ
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Abstract

Background: Reliable chemosensitivity testing of head and neck squamous cell carcinoma (HNSCC) still faces methodical limitations. Since stromal cell contamination has been found to preclude reliable radiosensitivity testing of HNSCC as well as chemosensitivity testing of lung tumors, the present study investigates the impact of stromal cell contamination on chemosensitivity testing of HNSCC. Patients and Methods: Seventeen biopsies from HNSCC were analyzed. The specimens were investigated using an ex vivo colony formation assay which allows for the quantitative and separate determination of the overall, as well as the epithelial, and stromal response to carboplatin, 5-fluorouracil and docetaxel. Results: The overall chemoresponse was dominated by stromal cell multidrug resistance. However, by selective evaluation of the epithelial chemoresponse, individual chemosensitivity patterns could be identified. Conclusion: Multidrug-resistant stromal cells preclude the reliable assessment of the chemoresponse of HNSCC specimens. Careful correction for stromal cell effects is a prerequisite for the generation of therapeutically useful information.

  • Received September 1, 2003.
  • Accepted December 15, 2003.
  • Copyright© 2004 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved
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Anticancer Research: 24 (1)
Anticancer Research
Vol. 24, Issue 1
January-February 2004
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The Impact of Stromal Cell Contamination on Chemosensitivity Testing of Head and Neck Carcinoma
RALPH DOLLNER, CHRISTOF GRANZOW, BURKHARD M. HELMKE, ALEXANDRA RUESS, ARNO SCHAD, ANDREAS DIETZ
Anticancer Research Jan 2004, 24 (1) 325-332;

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The Impact of Stromal Cell Contamination on Chemosensitivity Testing of Head and Neck Carcinoma
RALPH DOLLNER, CHRISTOF GRANZOW, BURKHARD M. HELMKE, ALEXANDRA RUESS, ARNO SCHAD, ANDREAS DIETZ
Anticancer Research Jan 2004, 24 (1) 325-332;
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