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<p>Amyotrophic lateral sclerosis (ALS) and Charcot-Marie-Tooth disease (CMT) are two distinct neurodegenerative disorders. While ALS is characterised by rapidly progressive motor neuron degeneration, leading to severe complications and death, CMT as a peripheral neuropathy is less severe, and patients have a longer life span, although with a compromised quality of life. Despite their clinical differences, current knowledge suggests that familial ALS (fALS) and CMT may share common genetic and molecular mechanisms. We aimed to identify shared genes mutations and molecular pathways between fALS and CMT through a literature and database search. Thirteen genes were identified, involved in distinct cellular processes: axonal transport (<i>DYNC1H1</i>,<i> KIF5A</i>,<i> SPG11</i>, <i>DCTN1</i>), protein homeostasis (<i>NEFH</i>,<i> VCP</i>,<i> SOD1</i>), RNA metabolism (<i>GARS</i>,<i> SETX</i>), cellular stress response (<i>HSPB1</i>,<i> FIG4</i>), and mitochondrial function (<i>MFN2</i>, <i>CHCHD10</i>). While these linkages to the two diseases are rare for each gene, understanding possible mechanistic commonalities at the molecular level can initiate new research directions, help in identifying additional common genes between neurodegenerative disorders, and improve diagnostics.</p>

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Genetic commonalities between rare subtypes of ALS and CMT: insights into molecular mechanisms of neurodegeneration

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月1日

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  • Abdilatif Aynaashe,
  • Petri Kursula

摘要

Amyotrophic lateral sclerosis (ALS) and Charcot-Marie-Tooth disease (CMT) are two distinct neurodegenerative disorders. While ALS is characterised by rapidly progressive motor neuron degeneration, leading to severe complications and death, CMT as a peripheral neuropathy is less severe, and patients have a longer life span, although with a compromised quality of life. Despite their clinical differences, current knowledge suggests that familial ALS (fALS) and CMT may share common genetic and molecular mechanisms. We aimed to identify shared genes mutations and molecular pathways between fALS and CMT through a literature and database search. Thirteen genes were identified, involved in distinct cellular processes: axonal transport (DYNC1H1, KIF5A, SPG11, DCTN1), protein homeostasis (NEFH, VCP, SOD1), RNA metabolism (GARS, SETX), cellular stress response (HSPB1, FIG4), and mitochondrial function (MFN2, CHCHD10). While these linkages to the two diseases are rare for each gene, understanding possible mechanistic commonalities at the molecular level can initiate new research directions, help in identifying additional common genes between neurodegenerative disorders, and improve diagnostics.