Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden.
EMBO J. 2013 Feb 20;32(4):493-5. doi: 10.1038/emboj.2013.20. Epub 2013 Feb 1.
Cell (2013) 152: 620–632 doi:; DOI: 10.1016/j.cell.2013.01.006; published online January 31 2013 Although it is known that replication stress causes genetic instability, the underlying mechanisms are not yet fully understood. A new study by Barlow (2013) used an elegant genome-wide chromatin immunoprecipitation approach to reveal that DNA lesions induced by replication stress occur predominantly in early replicating and actively transcribed gene clusters. These ‘early replication fragile sites’ (ERFS) can be the source for rearrangements commonly found in cancer, and represent a new type of fragile site, distinct from common fragile sites (CFS).
《细胞》(2013 年)152:620-632doi:;DOI:10.1016/j.cell.2013.01.006;在线发表于 2013 年 1 月 31 日尽管人们已经知道复制压力会导致遗传不稳定性,但其中的潜在机制尚不完全清楚。Barlow (2013 年)的一项新研究使用了一种精巧的全基因组染色质免疫沉淀方法,揭示了复制压力诱导的 DNA 损伤主要发生在早期复制和活跃转录的基因簇中。这些“早期复制脆弱位点”(ERFS)可能是癌症中常见的重排的来源,代表了一种不同于常见脆弱位点(CFS)的新型脆弱位点。