首页> 外文期刊>Neuron >The Drosophila BMP type II receptor Wishful Thinking regulates neuromuscular synapse morphology and function.
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The Drosophila BMP type II receptor Wishful Thinking regulates neuromuscular synapse morphology and function.

机译:果蝇BMP II型受体如意算盘调节神经肌肉突触的形态和功能。

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摘要

Proper synaptic development is critical for establishing all aspects of neural function including learning, memory, and locomotion. Here, we describe the phenotypic consequences of mutations in the wishful thinking (wit) gene, the Drosophila homolog of the vertebrate BMP type II receptor. Mutations in wit result in pharate lethality that can be rescued by expression of a wit transgene in motor neurons but not in muscles. Mutant larvae exhibit small synapses, severe defects in evoked junctional potentials, a lower frequency of spontaneous vesicle release, and an alteration in the ultrastructure of synaptic active zones. These results reveal a novel role for BMP signaling in regulating Drosophila neuromuscular junction synapse assembly and activity and may indicate that similar pathways could govern vertebrate synapse development.
机译:正确的突触发育对于建立神经功能的各个方面(包括学习,记忆和运动)至关重要。在这里,我们描述了如意算盘(wit)基因中突变的表型后果,即脊椎动物BMP II型受体的果蝇同源物。机智突变会导致致命的致命杀伤力,可以通过在运动神经元而非肌肉中表达机智转基因来挽救生命。突变幼虫表现出小的突触,诱发的连接电位严重缺陷,自发囊泡释放的频率较低,并且突触活性区的超微结构发生变化。这些结果揭示了BMP信号传导在调节果蝇神经肌肉连接突触组装和活性中的新作用,并且可能表明相似的途径可以控制脊椎动物突触的发育。

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