How do CHCHD10 mutations cause mitochondrial dysfunction leading to FTD-ALS pathogenesis?

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Composite

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Novelty

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Mechanistic

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Druggability

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Priority

85%

Importance

90%

Tractability

80%

Market price

50%

Description

While CHCHD10 is implicated in mitochondrial genome stability and cristae junction maintenance, the exact pathogenic mechanisms by which mutations in this gene lead to neurodegeneration remain unknown. This mechanistic gap limits understanding of disease progression and therapeutic target identification.

Gap type: unexplained_observation Source paper: Screening of CHCHD10 in a French cohort confirms the involvement of this gene in frontotemporal dementia with amyotrophic lateral sclerosis patients. (2014, Neurobiology of aging, PMID:25155093)

Resolution criteria

Resolved when CHCHD10 mutations are linked to FTD-ALS phenotypes through mitochondrial defects in disease-relevant cells. Required evidence: patient or engineered motor-neuron/cortical-neuron models, cristae ultrastructure, mtDNA stability, respiratory-chain function, mitochondrial dynamics/import assays, stress vulnerability, and rescue with wild-type CHCHD10 or pathway correction. Closure requires a causal sequence from mutant CHCHD10 to mitochondrial failure and neurodegenerative cellular phenotypes.

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