Radiobiological characterization of head and neck and sarcoma cells derived from patients prior to radiotherapy.
other · Level V
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Abstract
The radiobiological parameters of 33 tumor cell lines were studied in biopsy samples obtained from patients prior to radiotherapy. Epithelial tumor cells derived from head and neck cancer patients were more radioresistant than tumor cell lines derived from patients with sarcoma regardless of method of analysis. The presence of radioresistant tumor cell lines was associated with local failure in some patients. However, the presence of radiosensitive tumor cells did not necessarily predict local control. Our data suggest radiocurability is complex and inherent radiobiological parameters of tumor cells may be only one factor in radiotherapy outcome.
Medical subject headings
- Carcinoma, Squamous Cell
- Cell Survival
- Head and Neck Neoplasms
- Radiation Tolerance
- Sarcoma