CLN8 Mutations Presenting with a Phenotypic Continuum of Neuronal Ceroid Lipofuscinosis-Literature Review and Case Report.
CLN8 Mutations Presenting with a Phenotypic Continuum of Neuronal Ceroid Lipofuscinosis-Literature Review and Case Report.
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DOI:
10.3390/genes12070956
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发表时间:
2021-06-23
期刊:
影响因子:
3.5
通讯作者:
Steinborn B
中科院分区:
文献类型:
--
作者:
Badura-Stronka M;Winczewska-Wiktor A;Pietrzak A;Hirschfeld AS;Zemojtel T;Wołyńska K;Bednarek-Rajewska K;Seget-Dubaniewicz M;Matheisel A;Latos-Bielenska A;Steinborn B
CLN8 is a ubiquitously expressed membrane-spanning protein that localizes primarily in the ER, with partial localization in the ER-Golgi intermediate compartment. Mutations in CLN8 cause late-infantile neuronal ceroid lipofuscinosis (LINCL). We describe a female pediatric patient with LINCL. She exhibited a typical phenotype associated with LINCL, except she did not present spontaneous myoclonus, her symptoms occurrence was slower and developed focal sensory visual seizures. In addition, whole-exome sequencing identified a novel homozygous variant in CLN8, c.531G>T, resulting in p.Trp177Cys. Ultrastructural examination featured abundant lipofuscin deposits within mucosal cells, macrophages, and monocytes. We report a novel CLN8 mutation as a cause for NCL8 in a girl with developmental delay and epilepsy, cerebellar syndrome, visual loss, and progressive cognitive and motor regression. This case, together with an analysis of the available literature, emphasizes the existence of a continuous spectrum of CLN8-associated phenotypes rather than a sharp distinction between them.
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影响因子:
4.2
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Lonka, L;Salonen, T;Jalanko, A
通讯作者:
Jalanko, A
影响因子:
6.4
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Herva, R;Tyynelä, J;Haltia, M
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通讯作者:
SANTAVUORI, P