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着色性干皮症(XP)是人类中一种遗传病,临床表现为患者皮肤与眼睛对紫外线(uv)照射十分敏感,且有很高的皮肤癌发生率,其生化机制是对uv诱发的DNA损伤缺乏修复功能。作者把经SV_40病毒转化XP患者成纤维细胞后所建立的持久细胞系XP_20S(SV)作为受体,从人体横纹肌肉瘤的细胞系A204和胚胎肺成纤维细胞HRC-5中提取与纯化高分子量DNA,釆用修改
Coloring dry skin disease (XP) is a genetic disease in humans, the clinical manifestations of the patient’s skin and eyes are very sensitive to ultraviolet (uv) irradiation, and have a high incidence of skin cancer, the biochemical mechanism is uv-induced DNA damage lacks repair function. The authors used XP_20S (SV), a long-established cell line established by transforming SV_40 virus into fibroblasts of XP patients, to extract and purify high molecular weight DNA from human rhabdomyosarcoma cell line A204 and embryonic lung fibroblast cell line HRC-5 , Preclude the use of amendments