Low-level dystrophin expression attenuating the dystrophinopathy phenotype.

Low-level dystrophin expression attenuating the dystrophinopathy phenotype.
复制标题

DOI:
10.1016/j.nmd.2017.11.007
复制
发表时间:
2018-03
影响因子:
2.8
通讯作者:
Flanigan, Kevin M.
Flanigan, Kevin M.
中科院分区:
医学4区
文献类型:
--
作者:
Waldrop, Megan A.;Gumienny, Felecia;El Husayni, Saleh;Frank, Diane E.;Weiss, Robert B.;Flanigan, Kevin M.

文献摘要

参考文献

被引文献

相似文献

阅读框架规则表明,杜氏肌营养不良症(DMD)是由DMD突变引起的框外转录,而较温和的贝克尔肌营养不良症是由突变引起的框内转录。然而,预测的无义突变可能反而导致改变的剪接和框内转录。在这里,我们报告了一个10岁的男孩与预测的无义突变外显子42谁了6分钟步行时间的157%,年龄匹配的DMD对照,其特征是中间型肌营养不良症。肌肉活检的RNA测序分析显示,除了外显子42外,只有6.0-9.8%的DMD转录物在框内,免疫印迹显示只有3.2%的肌营养不良蛋白表达。另一个潜在的遗传修饰是保护性IAAM LTBP 4单倍型的纯合性。该病例表明,非常低水平的DMD外显子跳跃和肌营养不良蛋白表达可能导致骨骼肌无力的改善,这一发现与目前的肌营养不良蛋白恢复疗法相关。
The reading frame rule suggests that Duchenne muscular dystrophy (DMD) results from DMD mutations causing an out-of-frame transcript, whereas the milder Becker muscular dystrophy results from mutations causing an in-frame transcript. However, predicted nonsense mutations may instead result in altered splicing and an in-frame transcript. Here we report a 10-year-old boy with a predicted nonsense mutation in exon 42 who had a 6-minute walk time of 157% of that of age matched DMD controls, characterized as intermediate muscular dystrophy. RNA sequencing analysis from a muscle biopsy revealed only 6.0–9.8% of DMD transcripts were in-frame, excluding exon 42, and immunoblot demonstrated only 3.2% dystrophin protein expression. Another potential genetic modifier noted was homozygosity for the protective IAAM LTBP4 haplotype. This case suggests that very low levels of DMD exon skipping and dystrophin protein expression may result in amelioration of skeletal muscle weakness, a finding relevant to current dystrophin-restoring therapies.
DOI: 10.1002/ana.23819
发表时间: 2013-04
影响因子: 11.2
作者:
Flanigan, Kevin M.;Ceco, Ermelinda;Lamar, Kay-Marie;Kaminoh, Yuuki;Dunn, Diane M.;Mendell, Jerry R.;King, Wendy M.;Pestronk, Alan;Florence, Julaine M.;Mathews, Katherine D.;Finkel, Richard S.;Swoboda, Kathryn J.;Gappmaier, Eduard;Howard, Michael T.;Day, John W.;McDonald, Craig;McNally, Elizabeth M.;Weiss, Robert B.
通讯作者: Weiss, Robert B.
DOI: 10.1038/srep39094
发表时间: 2017-01-03
期刊: SCIENTIFIC REPORTS
影响因子: 4.6
作者:
Bouge, Anne-Laure;Murauer, Eva;Tuffery-Giraud, Sylvie
通讯作者: Tuffery-Giraud, Sylvie
DOI: 10.1002/ajmg.a.30617
发表时间: 2005-04-30
影响因子: 2
作者:
Dent, KM;Dunn, DM;Flanigan, KM
通讯作者: Flanigan, KM
DOI: 10.1016/j.ncl.2014.05.002
发表时间: 2014-08-01
期刊: NEUROLOGIC CLINICS
影响因子: 2.4
作者:
Flanigan, Kevin M.
通讯作者: Flanigan, Kevin M.
DOI: 10.1172/jci119757
发表时间: 1997-11-01
影响因子: 15.9
作者:
Shiga, N;Takeshima, Y;Matsuo, M
通讯作者: Matsuo, M