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Mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy
BACKGROUND: Autosomal dominant optic atrophy (ADOA), a form of progressive bilateral blindness due to loss of retinal ganglion cells and optic nerve deterioration, arises predominantly from mutations in the nuclear gene for the mitochondrial GTPase, OPA1. OPA1 localizes to mitochondrial cristae in t...
Autores principales: | , , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2008
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2547100/ https://www.ncbi.nlm.nih.gov/pubmed/18783614 http://dx.doi.org/10.1186/1471-2091-9-22 |
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author | Mayorov, Vladimir I Lowrey, Angela J Biousse, Valerie Newman, Nancy J Cline, Susan D Brown, Michael D |
author_facet | Mayorov, Vladimir I Lowrey, Angela J Biousse, Valerie Newman, Nancy J Cline, Susan D Brown, Michael D |
author_sort | Mayorov, Vladimir I |
collection | PubMed |
description | BACKGROUND: Autosomal dominant optic atrophy (ADOA), a form of progressive bilateral blindness due to loss of retinal ganglion cells and optic nerve deterioration, arises predominantly from mutations in the nuclear gene for the mitochondrial GTPase, OPA1. OPA1 localizes to mitochondrial cristae in the inner membrane where electron transport chain complexes are enriched. While OPA1 has been characterized for its role in mitochondrial cristae structure and organelle fusion, possible effects of OPA1 on mitochondrial function have not been determined. RESULTS: Mitochondria from six ADOA patients bearing OPA1 mutations and ten ADOA patients with unidentified gene mutations were studied for respiratory capacity and electron transport complex function. Results suggest that the nuclear DNA mutations that give rise to ADOA in our patient population do not alter mitochondrial electron transport. CONCLUSION: We conclude that the pathophysiology of ADOA likely stems from the role of OPA1 in mitochondrial structure or fusion and not from OPA1 support of oxidative phosphorylation. |
format | Text |
id | pubmed-2547100 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2008 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-25471002008-09-23 Mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy Mayorov, Vladimir I Lowrey, Angela J Biousse, Valerie Newman, Nancy J Cline, Susan D Brown, Michael D BMC Biochem Research Article BACKGROUND: Autosomal dominant optic atrophy (ADOA), a form of progressive bilateral blindness due to loss of retinal ganglion cells and optic nerve deterioration, arises predominantly from mutations in the nuclear gene for the mitochondrial GTPase, OPA1. OPA1 localizes to mitochondrial cristae in the inner membrane where electron transport chain complexes are enriched. While OPA1 has been characterized for its role in mitochondrial cristae structure and organelle fusion, possible effects of OPA1 on mitochondrial function have not been determined. RESULTS: Mitochondria from six ADOA patients bearing OPA1 mutations and ten ADOA patients with unidentified gene mutations were studied for respiratory capacity and electron transport complex function. Results suggest that the nuclear DNA mutations that give rise to ADOA in our patient population do not alter mitochondrial electron transport. CONCLUSION: We conclude that the pathophysiology of ADOA likely stems from the role of OPA1 in mitochondrial structure or fusion and not from OPA1 support of oxidative phosphorylation. BioMed Central 2008-09-10 /pmc/articles/PMC2547100/ /pubmed/18783614 http://dx.doi.org/10.1186/1471-2091-9-22 Text en Copyright © 2008 Mayorov et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Mayorov, Vladimir I Lowrey, Angela J Biousse, Valerie Newman, Nancy J Cline, Susan D Brown, Michael D Mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy |
title | Mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy |
title_full | Mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy |
title_fullStr | Mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy |
title_full_unstemmed | Mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy |
title_short | Mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy |
title_sort | mitochondrial oxidative phosphorylation in autosomal dominant optic atrophy |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2547100/ https://www.ncbi.nlm.nih.gov/pubmed/18783614 http://dx.doi.org/10.1186/1471-2091-9-22 |
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