## Abstract ## BACKGROUND Tumor metastasis to regional lymph nodes via the lymphatic system represents the first step of dissemination in head and neck squamous cell carcinoma (HNSCC) and serves as a major prognostic indicator for disease progression and as a guide for therapeutic strategies. In t
Tumor microenvironment in head and neck squamous cell carcinomas: Predictive value and clinical relevance of hypoxic markers. A review
β Scribed by Ilse J. Hoogsteen; Henri A. M. Marres; Johan Bussink; Albert J. van der Kogel; Johannes H. A. M. Kaanders
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 340 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1043-3074
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β¦ Synopsis
Abstract
Background.
Hypoxia and tumor cell proliferation are important factors determining the treatment response of squamous cell carcinomas of the head and neck. Successful approaches have been developed to counteract these resistance mechanisms although usually at the cost of increased shortβ and longβterm side effects. To provide the best attainable quality of life for individual patients and the head and neck cancer patient population as a whole, it is of increasing importance that tools be developed that allow a better selection of patients for these intensified treatments.
Methods.
A literature review was performed with special focus on the predictive value and clinical relevance of endogenous hypoxiaβrelated markers.
Results.
New methods for qualitative and quantitative assessment of functional microenvironmental parameters such as hypoxia, proliferation, and vasculature have identified several candidate markers for future use in predictive assays. Hypoxiaβrelated markers include hypoxia inducible factor (HIF)β1Ξ±, carbonic anhydrase IX, glucose transporters, erythropoietin receptor, osteopontin, and others. Although several of these markers and combinations of markers are associated with treatment outcome, their clinical value as predictive factors remains to be established.
Conclusions:
A number of markers and marker profiles have emerged that may have potential as a predictive assay. Validation of these candidate assays requires testing in prospective trials comparing standard treatment against experimental treatments targeting the related microregional constituent. Β© 2007 Wiley Periodicals, Inc. Head Neck, 2007
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