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Impairment of mitochondrial calcium handling in a mtSOD1 cell culture model of motoneuron disease |
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| Authors: | Manoj Kumar Jaiswal Wolf-Dieter Zech Miriam Goos Christine Leutbecher Alberto Ferri Annette Zippelius Maria Teresa Carrì Roland Nau Bernhard U Keller |
| Affiliation: | (1) Center of Physiology, Georg-August University, Goettingen, Germany;(2) Department of Neurology, Georg-August University, Goettingen, Germany;(3) Laboratory of Neurochemistry, Fondazione S. Lucia IRCCS, Rome, Italy;(4) Department of Biology, University of Rome "Tor Vergata", Rome, Italy;(5) Department of Physics, Georg-August University, Goettingen, Germany;(6) Department of Geriatrics, Evangelisches Krakenhaus, Goettingen-Weende, Germany |
| Abstract: | BackgroundAmyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by the selective loss of motor neurons (MN) in the brain stem and spinal cord. Intracellular disruptions of cytosolic and mitochondrial calcium have been associated with selective MN degeneration, but the underlying mechanisms are not well understood. The present evidence supports a hypothesis that mitochondria are a target of mutant SOD1-mediated toxicity in familial amyotrophic lateral sclerosis (fALS) and intracellular alterations of cytosolic and mitochondrial calcium might aggravate the course of this neurodegenerative disease. In this study, we used a fluorescence charged cool device (CCD) imaging system to separate and simultaneously monitor cytosolic and mitochondrial calcium concentrations in individual cells in an established cellular model of ALS. |
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