Weichselbaum R R, Schmit A, Little J B
Br J Cancer. 1982 Jan;45(1):10-6. doi: 10.1038/bjc.1982.2.
We have studied the repair of X-ray-induced, potentially lethal damage (PLD) in 9 human tumour lines derived from tumours of varying radiocurability. Cells derived from 3 tumours considered non-radiocurable (1 osteosarcoma, 2 melanoma) repaired significantly more X-ray PLD than cells from 3 tumours considered radiocurable (2 breast, 1 neuroblastoma). The remaining tumour lines were intermediate in their ability for repair, and included cells from another osteosarcoma, a hypernephroma and a glioblastoma. We conclude that the repair of X-ray PLD may be an important cellular determinant of clinical radiocurability.
我们研究了来自不同放射可治愈性肿瘤的9种人类肿瘤细胞系中X射线诱导的潜在致死性损伤(PLD)的修复情况。来自3种被认为不可放射治愈的肿瘤(1例骨肉瘤、2例黑色素瘤)的细胞比来自3种被认为可放射治愈的肿瘤(2例乳腺癌、1例神经母细胞瘤)的细胞修复X射线PLD的能力明显更强。其余肿瘤细胞系的修复能力处于中等水平,包括来自另1例骨肉瘤、1例肾细胞癌和1例胶质母细胞瘤的细胞。我们得出结论,X射线PLD的修复可能是临床放射可治愈性的一个重要细胞决定因素。