Rare variants in TP73 in a frontotemporal dementia cohort link this gene with primary progressive aphasia phenotypes.

Rare variants in TP73 in a frontotemporal dementia cohort link this gene with primary progressive aphasia phenotypes.
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DOI:
10.1111/ene.15248
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发表时间:
2022-05
影响因子:
5.1
通讯作者:
Guerreiro, Rita
Guerreiro, Rita
中科院分区:
医学3区
文献类型:
--
作者:
Tabuas-Pereira, Miguel;Santana, Isabel;Almeida, Maria Rosario;Duraes, Joao;Lima, Marisa;Duro, Diana;Kun-Rodrigues, Celia;Bras, Jose;Guerreiro, Rita

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最近报道 TP73 会导致肌萎缩侧索硬化症 (ALS)。 ALS 和额颞叶痴呆 (FTD) 被认为是一个连续体的一部分。我们的目的是研究 TP73 变异是否可能与 FTD 相关。我们通过全外显子组测序对 65 名葡萄牙额颞叶痴呆患者进行了彻底调查。患者的疾病没有其他已知的遗传原因。在所研究的 65 名患者中,两名患者存在 TP73 罕见变异(p.Gly605Ser 和 p.Arg347Trp)。两者的 MAF<0.001,在计算机模拟中预测均具有致病性。两名患者均表现出以语言障碍为主的表型,提示不流利的进行性失语症。我们表明,经过彻底研究的没有其他已知基因变化的患者携带 TP73 罕见变异,这些变异在计算机上是致病的。这为 TP73 在 ALS-FTD 谱系中的作用提供了证据,尤其是在原发性进行性失语症病例中。
TP73 was recently reported to cause Amyotrophic Lateral Sclerosis (ALS). ALS and Frontotemporal Dementia (FTD) are considered to be part of a continuum. We aimed to investigate whether TP73 variants may be associated with FTD. We studied a thoroughly investigated cohort of 65 Portuguese Frontotemporal Dementia patients by Whole-Exome Sequencing. Patients had no other known genetic cause for their disease. Of the 65 patients studied, two had rare variants in TP73 (p.Gly605Ser and p.Arg347Trp). Both had MAF<0.001 and are predicted to be pathogenic in silico. Both patients showed a phenotype with predominant language impairment, suggestive of non-fluent progressive aphasia. We show that thoroughly studied patients without other known genetic changes harbour TP73 rare variants, which are pathogenic in silico. This adds evidence to the role of TP73 in the ALS-FTD spectrum and especially in primary progressive aphasia cases.
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