Mitochondrial organization and structure are compromised in fibroblasts from patients with Huntington's disease
Jazyk angličtina Země Velká Británie, Anglie Médium print-electronic
Typ dokumentu časopisecké články
Odkazy
PubMed
35946926
DOI
10.1080/01913123.2022.2100951
Knihovny.cz E-zdroje
- Klíčová slova
- Huntington’s disease, fibroblasts, mitochondrial dysfunction, mitochondrial network, oxidative phosphorylation system, ultrastructure,
- MeSH
- dospělí MeSH
- fibroblasty metabolismus MeSH
- Huntingtonova nemoc * genetika metabolismus patologie MeSH
- lidé MeSH
- mitochondrie patologie MeSH
- neurodegenerativní nemoci * metabolismus patologie MeSH
- neurony patologie MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
Huntington´s disease (HD) is a progressive neurodegenerative disease with onset in adulthood that leads to a complete disability and death in approximately 20 years after onset of symptoms. HD is caused by an expansion of a CAG triplet in the gene for huntingtin. Although the disease causes most damage to striatal neurons, other parts of the nervous system and many peripheral tissues are also markedly affected. Besides huntingtin malfunction, mitochondrial impairment has been previously described as an important player in HD. This study focuses on mitochondrial structure and function in cultivated skin fibroblasts from 10 HD patients to demonstrate mitochondrial impairment in extra-neuronal tissue. Mitochondrial structure, mitochondrial fission, and cristae organization were significantly disrupted and signs of elevated apoptosis were found. In accordance with structural changes, we also found indicators of functional alteration of mitochondria. Mitochondrial disturbances presented in fibroblasts from HD patients confirm that the energy metabolism damage in HD is not localized only to the central nervous system, but also may play role in the pathogenesis of HD in peripheral tissues. Skin fibroblasts can thus serve as a suitable cellular model to make insight into HD pathobiochemical processes and for the identification of possible targets for new therapies.