2003
DOI: 10.1126/science.1083129
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Mutations in Dynein Link Motor Neuron Degeneration to Defects in Retrograde Transport

Abstract: Degenerative disorders of motor neurons include a range of progressive fatal diseases such as amyotrophic lateral sclerosis (ALS), spinal-bulbar muscular atrophy (SBMA), and spinal muscular atrophy (SMA). Although the causative genetic alterations are known for some cases, the molecular basis of many SMA and SBMA-like syndromes and most ALS cases is unknown. Here we show that missense point mutations in the cytoplasmic dynein heavy chain result in progressive motor neuron degeneration in heterozygous mice, and… Show more

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Cited by 633 publications
(552 citation statements)
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“…600112, http://www.ncbi.nlm.nih.gov/omim) mutations give rise to an AD form of axonal CMT, known as CMT2O. 63,64 Accordingly, heterozygous mice with an orthologous pathogenic mutation of DYNC1H1 have a marked reduction in dynein microtubule binding affinity and abnormal retrograde axon transport which produces a CMT-like motor and sensory neuropathy. 65,66 In addition, DYN-interacting proteins that function as cofactors or modulators of DYN function are identified to cause neuropathy.…”
Section: Axon Transport and Neuropathymentioning
confidence: 99%
“…600112, http://www.ncbi.nlm.nih.gov/omim) mutations give rise to an AD form of axonal CMT, known as CMT2O. 63,64 Accordingly, heterozygous mice with an orthologous pathogenic mutation of DYNC1H1 have a marked reduction in dynein microtubule binding affinity and abnormal retrograde axon transport which produces a CMT-like motor and sensory neuropathy. 65,66 In addition, DYN-interacting proteins that function as cofactors or modulators of DYN function are identified to cause neuropathy.…”
Section: Axon Transport and Neuropathymentioning
confidence: 99%
“…In two lines of mice, Legs at odd angles (Loa) and Cramping 1 (Cra1), mutations in the dynein heavy chain gene cause motor neuron disease, and neurons from these mice exhibit a defect in the fast component of retrograde transport in vitro [37]. The Loa mice also exhibit an early-onset sensory neuropathy [38].…”
Section: Retrograde Transport and Neurodegenerationmentioning
confidence: 99%
“…Tbce, which encodes a tubulin cofactor necessary for proper microtubule assembly, results specifically in motoneuron degeneration and apoptosis when mutated [35]. Mutations in Dync1h1, the dynein heavy chain 1 gene, affect retrograde transport and lead to sensory and/or motor neuron disease, depending on the allele [36,37]. Finally, the dysfunction of two endosome-associated genes, Fig4 and Vps54, causes neuropathy in mouse models.…”
Section: Gene Discovery and Functional Analysismentioning
confidence: 99%
“…2c) to the cytoplasmic dynein heavy chain 1 gene (Dync1h1 prompted a second look at two previously described ENU-induced mutations in Dync1h1, legs at odd angles (Loa) and cramping 1 (Cra1). Loa and Cra1 had been shown to cause late-onset motor neuron degeneration [37]. In contrast, Swl has a long history of investigation as a model of early-onset sensory neuropathy, characterized by a reduction in muscle spindles and a loss of DRG neurons.…”
Section: Allelic Seriesmentioning
confidence: 99%
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