Weichselbaum R R, Little J B
Br J Cancer. 1982 Oct;46(4):532-7. doi: 10.1038/bjc.1982.237.
We have measured post-irradiation recovery (potentially lethal damage repair) after fractionated radiation in plateau-phase cultures of two human tumour cell lines derived from tumours of different radiocurabilities (melanoma and breast). Although the radiation survival-curve parameters of these cell lines are similar, the repair of potentially lethal X-ray damage after fractionated X-ray treatment conferred significant radioresistance on the human melanoma cells but not the human breast carcinoma cells. We suggest that the repair of potentially lethal damage may correlate with clinical radiocurability.
我们已经测量了源自不同放射敏感性肿瘤(黑色素瘤和乳腺癌)的两个人类肿瘤细胞系在平台期培养物中分次照射后的辐射后恢复(潜在致死性损伤修复)情况。尽管这些细胞系的辐射存活曲线参数相似,但分次X射线治疗后潜在致死性X射线损伤的修复赋予了人类黑色素瘤细胞显著的放射抗性,而人类乳腺癌细胞则没有。我们认为潜在致死性损伤的修复可能与临床放射敏感性相关。