作者
Baoxu Pang, Johann De Jong, Xiaohang Qiao, Lodewyk FA Wessels, Jacques Neefjes
发表日期
2015/7
期刊
Nature chemical biology
卷号
11
期号
7
页码范围
472-480
出版商
Nature Publishing Group US
简介
Many anticancer drugs induce DNA breaks to eliminate tumor cells. The anthracycline topoisomerase II inhibitors additionally cause histone eviction. Here, we performed genome-wide high-resolution mapping of chemotherapeutic effects of various topoisomerase I and II (TopoI and II) inhibitors and integrated this mapping with established maps of genomic or epigenomic features to show their activities in different genomic regions. The TopoI inhibitor topotecan and the TopoII inhibitor etoposide are similar in inducing DNA damage at transcriptionally active genomic regions. The anthracycline daunorubicin induces DNA breaks and evicts histones from active chromatin, thus quenching local DNA damage responses. Another anthracycline, aclarubicin, has a different genomic specificity and evicts histones from H3K27me3-marked heterochromatin, with consequences for diffuse large B-cell lymphoma cells with …
引用总数
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