Potassium bromate, a potent DNA oxidizing agent, exacerbates germline repeat expansion in a fragile X premutation mouse model.

Potassium bromate, a potent DNA oxidizing agent, exacerbates germline repeat expansion in a fragile X premutation mouse model.
复制标题

DOI:
10.1002/humu.21237
复制
发表时间:
2010-05
期刊:
影响因子:
3.9
通讯作者:
Usdin, Karen
Usdin, Karen
中科院分区:
医学2区
文献类型:
--
作者:
Entezam, Ali;Lokanga, Adihe Rachel;Le, Wei;Hoffman, Gloria;Usdin, Karen

文献摘要

参考文献

被引文献

相似文献

串联重复序列扩增是重复序列扩增疾病的原因,重复序列扩增疾病是一组人类遗传疾病,包括脆性X综合征。FXS由在FMR 1基因的5' UTR中具有55-200个CGG·CCG重复的前突变(PM)等位基因的扩增引起。膨胀的机制尚不清楚。我们用溴酸钾(KBrO 3)治疗FX PM小鼠,溴酸钾是一种有效的DNA氧化剂。然后我们监测这些动物后代的生殖系和体细胞扩增频率。我们在这里表明,KBrO 3增加了处理动物的卵母细胞中的8-oxoG水平和生殖系扩增频率。因此,我们的数据表明,氧化损伤可能是影响人类扩张风险的一个因素。
Tandem repeat expansion is responsible for the Repeat Expansion Diseases, a group of human genetic disorders that includes Fragile X syndrome. FXS results from expansion of a premutation (PM) allele having 55–200 CGG•CCG-repeats in the 5’ UTR of the FMR1 gene. The mechanism of expansion is unknown. We have treated FX PM mice with potassium bromate (KBrO3), a potent DNA oxidizing agent. We then monitored the germline and somatic expansion frequency in the progeny of these animals. We show here that KBrO3 increased both the level of 8-oxoG in the oocytes of treated animals and the germline expansion frequency. Our data thus suggest that oxidative damage may be a factor that could affect expansion risk in humans.
DOI: 10.1093/nar/gkp666
发表时间: 2009-10
影响因子: 14.9
作者:
Entezam A;Usdin K
通讯作者: Usdin K
DOI: 10.1016/0092-8674(91)90283-5
发表时间: 1991-12-20
期刊: CELL
影响因子: 64.5
作者:
FU, YH;KUHL, DPA;CASKEY, CT
通讯作者: CASKEY, CT
DOI: 10.1093/nar/25.14.2861
发表时间: 1997-07-15
影响因子: 14.9
作者:
Bowater, RP;Jaworski, A;Wells, RD
通讯作者: Wells, RD
DOI: 10.1007/s00438-001-0635-4
发表时间: 2002-03-01
影响因子: 3.1
作者:
Jankowski, C;Nag, DK
通讯作者: Nag, DK
DOI: 10.1177/019262339802600501
发表时间: 1998-09-01
影响因子: 1.5
作者:
DeAngelo, AB;George, MH;Wolf, DC
通讯作者: Wolf, DC