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来自对放疗有已知反应患者的早期传代鳞状细胞癌系的细胞X射线修复参数。

Cellular X-ray repair parameters of early passage squamous cell carcinoma lines derived from patients with known responses to radiotherapy.

作者信息

Weichselbaum R, Dahlberg W, Little J B, Ervin T J, Miller D, Hellman S, Rheinwald J G

出版信息

Br J Cancer. 1984 May;49(5):595-601. doi: 10.1038/bjc.1984.94.

Abstract

We have investigated X-ray survival parameters and repair of potentially lethal damage ( PLDR ) in ten early passage squamous cell carcinoma cell lines derived from patients who were biopsied before initiation of radiotherapy or after radiation therapy failure. Radiosensitivity (D0) ranged from 1.07 to 1.93 (Gy), extrapolation numbers (-n) from 1.17 to 2.14 and PLD recovery at 24 h from 1.4 to 20.3. Despite significant differences in these parameters amongst the cell lines, a firm correlation between radiocurability and any individual radiobiological parameter could not be established. Our data suggest that the mechanisms associated with radioresistance are complex and that any single radiobiological parameter may not predict clinical success or failure.

摘要

我们研究了来自放疗开始前活检或放疗失败后活检患者的10个早期传代鳞状细胞癌细胞系的X射线存活参数和潜在致死性损伤(PLDR)的修复情况。放射敏感性(D0)范围为1.07至1.93(Gy),外推数(-n)为1.17至2.14,24小时时PLD恢复率为1.4至20.3。尽管这些参数在细胞系之间存在显著差异,但无法确定放射可治愈性与任何单个放射生物学参数之间的牢固相关性。我们的数据表明,与放射抗性相关的机制很复杂,任何单个放射生物学参数可能都无法预测临床的成功或失败。

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本文引用的文献

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In vitro cellular radiosensitivity of human malignant melanoma.人恶性黑色素瘤的体外细胞放射敏感性
Int J Radiat Oncol Biol Phys. 1982 Jul;8(7):1235-7. doi: 10.1016/0360-3016(82)90074-8.
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X-ray sensitivity of human tumor cells in vitro.人肿瘤细胞在体外的X射线敏感性
Int J Radiat Oncol Biol Phys. 1980 Apr;6(4):437-40. doi: 10.1016/0360-3016(80)90057-7.

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