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The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.

A mitochondrial origin for frontotemporal dementia and amyotrophic lateral sclerosis through CHCHD10 involvement

Open access
Bannwarth, Sylvie, Ait-El-Mkadem, Samira, Chaussenot, Annabelle, Genin, Emmanuelle C., Lacas-Gervais, Sandra, Fragaki, Konstantina, Berg-Alonso, Laetitia, Kageyama, Yusuke, Serre, Valérie, Moore, David G., Verschueren, Annie, Rouzier, Cécile, Le Ber, Isabelle, Augé, Gaëlle, Cochaud, Charlotte, Lespinasse, Françoise, N’Guyen, Karine, de Septenville, Anne, Brice, Alexis, Yu-Wai-Man, Patrick, Sesaki, Hiromi, Pouget, Jean, Paquis-Flucklinger, Véronique·2014·Brain

Abstract

Mitochondrial DNA instability disorders are responsible for a large clinical spectrum, among which amyotrophic lateral sclerosis-like symptoms and frontotemporal dementia are extremely rare. We report a large family with a late-onset phenotype including motor neuron disease, cognitive decline resembling frontotemporal dementia, cerebellar ataxia and myopathy. In all patients, muscle biopsy showed ragged-red and cytochrome c oxidase-negative fibres with combined respiratory chain deficiency and abnormal assembly of complex V. The multiple mitochondrial DNA deletions found in skeletal muscle revealed a mitochondrial DNA instability disorder. Patient fibroblasts present with respiratory chain deficiency, mitochondrial ultrastructural alterations and fragmentation of the mitochondrial network. Interestingly, expression of matrix-targeted photoactivatable GFP showed that mitochondrial fusion was not inhibited in patient fibroblasts. Using whole-exome sequencing we identified a missense mutation (c.176C>T; p.Ser59Leu) in the CHCHD10 gene that encodes a coiled-coil helix coiled-coil helix protein, whose function is unknown. We show that CHCHD10 is a mitochondrial protein located in the intermembrane space and enriched at cristae junctions. Overexpression of a CHCHD10 mutant allele in HeLa cells led to fragmentation of the mitochondrial network and ultrastructural major abnormalities including loss, disorganization and dilatation of cristae. The observation of a frontotemporal dementia-amyotrophic lateral sclerosis phenotype in a mitochondrial disease led us to analyse CHCHD10 in a cohort of 21 families with pathologically proven frontotemporal dementia-amyotrophic lateral sclerosis. We identified the same missense p.Ser59Leu mutation in one of these families. This work opens a novel field to explore the pathogenesis of the frontotemporal dementia-amyotrophic lateral sclerosis clinical spectrum by showing that mitochondrial disease may be at the origin of some of these phenotypes.

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Metadata

Authors
Bannwarth, S., Ait-El-Mkadem, S., Chaussenot, A., Genin, E. C., Lacas-Gervais, S., Fragaki, K., Berg-Alonso, L., Kageyama, Y., Serre, V., Moore, D. G., Verschueren, A., Rouzier, C., Le Ber, I., Augé, G., Cochaud, C., Lespinasse, F., N’Guyen, K., de Septenville, A., Brice, A., Yu-Wai-Man, P., Sesaki, H., Pouget, J., & Paquis-Flucklinger, V.
Venue
Brain
Published
2014-06-13
Volume
137
Issue
8
Pages
2329-2345
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2137076271
Cited by
488
References
11
FWCI
19.23
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: A mitochondrial origin for frontotemporal dementia and amyotrophic lateral sclerosis through CHCHD10 involvement. https://app.cochat.ai/papers/10.1093/brain/awu138
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Bannwarth, S., Ait-El-Mkadem, S., Chaussenot, A., Genin, E. C., Lacas-Gervais, S., Fragaki, K., Berg-Alonso, L., Kageyama, Y., Serre, V., Moore, D. G., Verschueren, A., Rouzier, C., Le Ber, I., Augé, G., Cochaud, C., Lespinasse, F., N’Guyen, K., de Septenville, A., Brice, A., . . . Paquis-Flucklinger, V. (2014). A mitochondrial origin for frontotemporal dementia and amyotrophic lateral sclerosis through CHCHD10 involvement. Brain. https://doi.org/10.1093/brain/awu138

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.