MicroRNA-206 delays ALS progression and promotes regeneration of neuromuscular synapses in mice.
MicroRNA-206 delays ALS progression and promotes regeneration of neuromuscular synapses in mice.
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DOI:
10.1126/science.1181046
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发表时间:
2009-12-11
期刊:
影响因子:
--
通讯作者:
Olson EN
中科院分区:
文献类型:
--
作者:
Williams AH;Valdez G;Moresi V;Qi X;McAnally J;Elliott JL;Bassel-Duby R;Sanes JR;Olson EN
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease, resulting in loss of motor neurons, denervation of target muscles, muscle atrophy and paralysis. Understanding ALS pathogenesis may require a fuller understanding of the bidirectional signaling between motor neurons and skeletal muscle fibers at neuromuscular synapses. Here we show that a key regulator of this signaling is miR-206, a skeletal muscle-specific microRNA that is dramatically induced in a mouse model of ALS. Mice genetically deficient in miR-206 form normal neuromuscular synapses during development, but deficiency of miR-206 in the ALS mouse model accelerates disease progression. MiR-206 is required for efficient regeneration of neuromuscular synapses after acute nerve injury, which likely accounts for its salutary effects in ALS. MiR-206 mediates these effects, at least in part, through histone deacetylase 4 and fibroblast growth factor signaling pathways. Thus, miR-206 slows ALS progression by sensing motor neuron injury and promoting compensatory regeneration of neuromuscular synapses.
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DOI:
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