Journal
NATURE CLINICAL PRACTICE NEUROLOGY
Volume 4, Issue 3, Pages 159-169Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncpneuro0735
Keywords
multiple sclerosis; neuroprotection; sodium channel blockers
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Sodium channels can provide a route for a persistent influx of sodium ions into neurons. Over the past decade, it has emerged that sustained sodium influx can, in turn, trigger calcium ion influx, which produces axonal injury in neuroinflammatory disorders such as multiple sclerosis (MS). The development of sodium channel blockers as potential neuroprotectants in MS has proceeded rapidly, and two clinical trials are currently ongoing. The route from the laboratory to the clinic includes some complex turns, however, and a third trial was recently put on hold because of new data that suggested that sodium channel blockers might have multiple, complex actions. This article reviews the development of the concept of sodium channel blockers as neuroprotectants in MS, the path from laboratory to clinic, and the current status of research in this area.
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