Radio- and photosensitization of DNA with compounds containing platinum and bromine atoms

Radio- and photosensitization of DNA with compounds containing platinum and bromine atoms
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使用含铂和溴原子的化合物对 DNA 进行放射和光敏化

DOI:
10.1140/epjd/e2015-60036-5
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发表时间:
2015
期刊:
The European Physical Journal D
影响因子:
--
通讯作者:
Smialek M
Smialek M
中科院分区:
--
文献类型:
--
作者:
Smialek M

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用X射线和紫外光照射质粒DNA,在有和无含铂和溴原子的化合物的情况下进行,以评估这些化合物的敏化潜力。将质粒DNA pBR 322与溴化铂(II)、六溴铂酸氢(IV)、六羟基铂酸氢(IV)和六羟基铂酸钠(IV)一起孵育。孵育后进行X射线或UV照射。结果发现,在测试的敏化剂中,在溴化铂(II)存在下进行辐照期间,记录了X射线处理后形成的最高水平的双链断裂。相比之下,UV光引起的损伤要小得多。这里提供的数据表明,这种化合物可能是一种有前途的放射增敏剂,用于癌症治疗。
AbstractIrradiations of plasmid DNA by both X-rays and UV light in the presence and absence of compounds containing platinum and bromine atoms were performed in order to asses the sensitization potential of these compounds. Plasmid DNA pBR322 was incubated with platinum (II) bromide, hydrogen hexabromoplatinate (IV), hydrogen hexahydroxyplatinate (IV) and sodium hexahydroxyplatinate (IV). Incubation was followed by X-ray or UV irradiations. It was found that amongst the sensitizers tested, during irradiations carried out in the presence of platinum (II) bromide, the highest levels of double strand breaks formation upon X-ray treatment were recorded. In contrast much less damage was induced by UV light. Data presented here suggests that this compound may be a promising radiosensitizer for cancer treatment.Graphical abstract
动脉内 5-溴脱氧尿苷和 X 射线治疗。
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