De novo CLCN3 variants affecting Gly327 cause severe neurodevelopmental syndrome with brain structural abnormalities
De novo CLCN3 variants affecting Gly327 cause severe neurodevelopmental syndrome with brain structural abnormalities
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影响 Gly327 的从头 CLCN3 变异导致严重的神经发育综合征并伴有大脑结构异常
DOI:
10.1038/s10038-022-01106-0
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发表时间:
2022
影响因子:
3.5
通讯作者:
Saitsu Hirotomo
中科院分区:
文献类型:
--
作者:
Nakashima Mitsuko;Argilli Emanuela;Nakano Sayaka;Sherr Elliott H.;Kato Mitsuhiro;Saitsu Hirotomo
A recent study revealed that monoallelic missense or biallelic loss-of-function variants in the chloride voltage-gated channel 3 (CLCN3) cause neurodevelopmental disorders resulting in brain abnormalities. Functional studies suggested that some missense variants had varying gain-of-function effects on channel activity. Meanwhile, two patients with homozygous frameshift variants showed severe neuropsychiatric disorders and a range of brain structural abnormalities. Here we describe two patients with de novoCLCN3variants affecting the same amino acid, Gly327 (p.(Gly327Ser) and p.(Gly327Asp)). They showed severe neurological phenotypes including global developmental delay, intellectual disability, hypotonia, failure to thrive, and various brain abnormalities. They also presented with characteristic brain and ophthalmological abnormalities, hippocampal and retinal degradation, which were observed in patients harboring homozygous loss-of-function variants. These findings were also observed inCLCN3-deficient mice, indicating that the monoallelic missense variant may also have a dominant negative effect. This study will expand the phenotypic spectrum ofCLCN3-related disorders.
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影响因子:
3.5
作者:
Scigliano, S;Grégoire, MJ;LeHeup, B
通讯作者:
LeHeup, B
影响因子:
9.8
作者:
Duncan, Anna R.;Polovitskaya, Maya M.;Agrawal, Pankaj B.
通讯作者:
Agrawal, Pankaj B.
DOI:
--
发表时间:
1981
期刊:
Annales de genetique
影响因子:
--
作者:
C. Yu;H. Chen;R. Baucum;A. Hand
通讯作者:
A. Hand
影响因子:
2.1
作者:
Yoshikawa, M;Uchida, S;Sasaki, S
通讯作者:
Sasaki, S
DOI:
10.1038/s41433-021-01501-5
发表时间:
2021-08
期刊:
Eye (London, England)
影响因子:
--
作者:
Lingam G;Sen AC;Lingam V;Bhende M;Padhi TR;Xinyi S
通讯作者:
Xinyi S