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Unraveling the Complexity of Amyotrophic Lateral Sclerosis: Recent Advances from the Transgenic Mutant SOD1 Mice

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Amyotrophic Lateral Sclerosis (ALS), which accounts for the majority of motor neuron disorders, is a progressive and fatal neurodegenerative disease leading to complete paralysis of skeletal muscles and premature death usually by respiratory failure. About 10% of all ALS cases are inherited, with the responsible genes having been identified in approximately 30% of these individuals. Mutations in the copper-zinc superoxide dismutase (SOD1) gene were the first to be recognized nearly twenty years ago, and since then different animal models, in particular transgenic rodents, have been developed. They replicate many of the clinical, neuropathological and molecular features of ALS patients and have contributed significantly to our understanding of the pathogenic mechanisms of this disease. Although results obtained so far with mutant SOD1 mice have not translated into effective therapies in ALS patients, these models still represent the only experimentally accessible system to study multiple aspects of disease pathogenesis and to provide proof-of-principle for the development of new therapeutic strategies. This review will examine the most recent discoveries obtained from these animal models in an attempt to elucidate the complex mechanisms of the disease. In particular it will focus on the contribution of multiple cell types in governing the disease development and progression.

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Keywords: Amyotrophic lateral sclerosis; SOD1; motor neuron; transgenic mouse models

Document Type: Research Article

Affiliations: Laboratory of Molecular Neurobiology, Department of Neuroscience, “Mario Negri” Institute for Pharmacological Research, Via La Masa, 19, 20156 Milano, Italy.

Publication date: 2010-08-01

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  • CNS & Neurological Disorders - Drug Targets aims to cover all the latest and outstanding developments on the medicinal chemistry, pharmacology, molecular biology, genomics and biochemistry of contemporary molecular targets involved in neurological and central nervous system (CNS) disorders e.g. disease specific proteins, receptors, enzymes, genes. Each issue of the journal will contain a series of timely in-depth reviews written by leaders in the field covering a range of current topics on drug targets involved in neurological and CNS disorders. As the discovery, identification, characterization and validation of novel human drug targets for neurological and CNS drug discovery continues to grow; this journal will be essential reading for all pharmaceutical scientists involved in drug discovery and development.
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