| Title | Mitochondrial dysfunction due to mutant copper/zinc superoxide dismutase associated with amyotrophic lateral sclerosis is reversed by N-acetylcysteine |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2003 |
| Authors | Beretta, S., Sala G., Mattavelli L., Ceresa C., Casciati Arianna, Ferri A., Carrì M.T., and Ferrarese C. |
| Journal | Neurobiology of Disease |
| Volume | 13 |
| Pagination | 213-221 |
| ISSN | 09699961 |
| Keywords | 3 (4, 5 dimethyl 2 thiazolyl) 2, 5 diphenyltetrazolium, acetylcysteine, Adenosine Triphosphate, amyotrophic lateral sclerosis, article, Blotting, cancer cell culture, caspase 3, Caspases, cell death, controlled study, copper zinc superoxide dismutase, Cultured, disorders of mitochondrial functions, DNA fragmentation, enzyme activity, Fluorescent Antibody Technique, Free Radical Scavengers, Gene expression, gene overexpression, homeostasis, human, human cell, Humans, L-Lactate Dehydrogenase, Mitochondria, mutation, Neuroblastoma, neuroblastoma cell, priority journal, reactive oxygen metabolite, Reactive Oxygen Species, Reduction, superoxide dismutase, tetrazolium, Tetrazolium Salts, Thiazoles, Tumor Cells, unclassified drug, Western, wild type |
| Abstract | We report that the expression of mutant G93A copper/zinc superoxide dismutase (SOD1), associated with familial amyotrophic lateral sclerosis, specifically causes a decrease in MTT reduction rate and ATP levels and an increase in both cytosolic and mitochondrial reactive oxygen species (ROS) production in human neuroblastoma SH-SY5Y cells compared to cells overexpressing wild-type SOD1 and untransfected cells. Exposure to N-acetylcysteine lowers ROS production and returns mitochondrial functional assays to control levels. No large aggregates of human SOD1 are detectable under basal growth conditions in any of the investigated cell lines. After proteasome activity inhibition, SOD1 aggregates can be detected exclusively in G93A-SOD1 cells, even though they do not per se enhance cell death compared to control cell lines. Our findings indicate that mitochondrial homeostasis is affected by mutant SOD1-generated ROS independently from the formation of aggregates and that this alteration is reversed by antioxidants. © 2003 Elsevier Science (USA). All rights reserved. |
| Notes | cited By 51 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0042093555&doi=10.1016%2fS0969-9961%2803%2900043-3&partnerID=40&md5=3aba95ae251e7bee31c6da72fe077907 |
| DOI | 10.1016/S0969-9961(03)00043-3 |
| Citation Key | Beretta2003213 |
