FUS and TDP43 genetic variability in FTD and CBS.

FUS and TDP43 genetic variability in FTD and CBS.
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DOI:
10.1016/j.neurobiolaging.2011.08.004
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发表时间:
2012-05
影响因子:
4.2
通讯作者:
Momeni P
Momeni P
中科院分区:
医学2区
文献类型:
--
作者:
Huey ED;Ferrari R;Moreno JH;Jensen C;Morris CM;Potocnik F;Kalaria RN;Tierney M;Wassermann EM;Hardy J;Grafman J;Momeni P

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本研究旨在评估已知与肌萎缩侧索硬化症(ALS)主要相关的FUS和TDP-43基因在额颞叶变性(FTLD)和皮质-基底综合征(CBS)患者中的遗传变异。我们对228例患者的DNA进行了FUS和TDP-43基因的所有外显子和侧翼内含子的筛查。我们在FUS中发现了两个新的杂合错义突变:P106L(g.22508384>T)在一个行为变异型额颞痴呆(BvFTD)患者中,Q179H在一个行为变异型FTD家族的几个成员中。我们还在一个CBS患者中发现了TDP-43的N267S突变,以前只在1个ALS家系和1个FTD患者中报道过。此外,我们在FUS的外显子5中发现了两个先前报道的杂合插入和缺失突变;在一名FTD患者中发现了Gly174-Gly175 del GG(g.4180-4185 delGAGGTG),在一名诊断为CBS的患者中发现了Gly175-Gly176 Ins GG(g.4185-4186 insGAGGTG)。尤其重要的是,我们在神经学上正常的对照组中也发现了一系列FUS的变异。综上所述,我们报告了FUS和TDP-43的遗传变异包括广泛的表型(包括ALS、FTD和CBS),并且在神经学正常对照中存在大量的FUS基因遗传变异。
This study aimed to evaluate genetic variability in the FUS and TDP-43 genes, known to be mainly associated with amyotrophic lateral sclerosis (ALS), in patients with the diagnoses of frontotemporal lobar degeneration (FTLD) and corticobasal syndrome (CBS). We screened the DNA of 228 patients for all the exons and flanking introns of FUS and TDP-43 genes. We identified 2 novel heterozygous missense mutations in FUS: P106L (g.22508384>T) in a patient with behavioral variant frontotemporal dementia (bvFTD) and Q179H in several members of a family with behavioral variant FTD. We also identified the N267S mutation in TDP-43 in a CBS patient, previously only reported in 1 ALS family and 1 FTD patient. Additionally, we identified 2 previously reported heterozygous insertion and deletion mutations in Exon 5 of FUS; Gly174-Gly175 del GG (g. 4180–4185 delGAGGTG) in an FTD patient and Gly175-Gly176 ins GG (g. 4185–4186 insGAGGTG) in a patient with diagnosis of CBS. Not least, we have found a series of variants in FUS also in neurologically normal controls. In summary, we report that genetic variability in FUS and TDP-43 encompasses a wide range of phenotypes (including ALS, FTD, and CBS) and that there is substantial genetic variability in FUS gene in neurologically normal controls.
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