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Mammalian cells resistant to tumor suppressor genes

机译:抵抗肿瘤抑制基因的哺乳动物细胞

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摘要

Expression of p53 causes growth arrest or apoptosis in many normal and neoplastic cell types, but the relationship between these two effects has remained obscure. To begin to dissect the underlying mechanisms at a genetic level, we have generated mutant cells resistant to the action of wild-type p53. Rat embryo fibroblasts transformed with ras and a temperature-sensitive p53 (tsp53~135val) gene were chem.- ically mutagenized and selected for growth at a temperature at which p53 adopts a wild-type conformation (31.5 deg C).
机译:p53的表达在许多正常和赘生性细胞类型中导致生长停滞或凋亡,但是这两种作用之间的关系仍然不清楚。为了在基因水平上开始剖析潜在机制,我们已经产生了对野生型p53的作用有抗性的突变细胞。化学诱变并用ras和温度敏感的p53(tsp53〜135val)基因转化的大鼠胚胎成纤维细胞在p53呈野生型构象(31.5℃)的温度下生长。

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