The intrinsic radiosensitivity of cervical carcinoma: correlations with clinical data.
AffiliationDepartment of Experimental Radiation Oncology, Paterson Institute for Cancer Research, Manchester.
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AbstractPURPOSE: The aims of the work were to study the intrinsic radiosensitivity of tumor biopsies from patients with cervical carcinoma and to correlate the data with information on patient age, disease stage, differentiation status, tumor volume, and tumor ploidy. METHODS AND MATERIALS: Radiosensitivity was assessed for 145 tumors in vitro as surviving fraction at 2 Gy (SF2) using a clonogenic assay. RESULTS: Although the clonogens in tumors classified as Stage I or II tended to be more radiosensitive than in Stage III or IV disease, the difference was not statistically significant (p > 0.15). There was also no significant difference in the intrinsic radiosensitivity of well, moderately, or poorly differentiated tumors or between squamous cell carcinoma and adenocarcinoma (p > 0.53). There was no correlation between patient age and tumor radiosensitivity (p = 0.49). Large volume (> or = 4 cm) disease was more radioresistant than small volume (< 4 cm) disease, but the difference was not significant (p = 0.08). Finally, diploid tumors tended to be more radioresistant than aneuploid tumors (p = 0.07). CONCLUSION: The intrinsic radiosensitivity of cervix tumors is independent of disease stage, tumor grade, and patient age. Weak trends, however, were observed of increased tumor radioresistance for large volume disease and diploid tumors, suggesting that tumor SF2 may not be a completely independent parameter.
CitationThe intrinsic radiosensitivity of cervical carcinoma: correlations with clinical data. 1995, 31 (4):841-6 Int. J. Radiat. Oncol. Biol. Phys.
JournalInternational Journal of Radiation Oncology, Biology, Physics
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