Axon regeneration requires a conserved MAP kinase pathway.

Axon regeneration requires a conserved MAP kinase pathway.
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DOI:
10.1126/science.1165527
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发表时间:
2009-02-06
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Bastiani M
Bastiani M
中科院分区:
其他
文献类型:
--
作者:
Hammarlund M;Nix P;Hauth L;Jorgensen EM;Bastiani M

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受损神经元的再生可以恢复功能,但大多数神经元再生不良或根本不再生。在某些情况下,再生失败是由于缺乏细胞内在再生途径的激活。因此,这些通路可能成为开发治疗方法的目标,这些治疗方法可以在损伤或疾病后恢复神经元功能。在这里,我们表明DLK-1 MAP激酶途径是必不可少的再生在C。运动神经元失去这条途径会消除再生,而激活它会提高再生。此外,这些蛋白质还调节生长锥迁移的后期步骤。我们的结论是,轴突损伤后,激活这MAP激酶级联需要开关的成熟神经元从再生障碍性状态的状态能够生长。
Regeneration of injured neurons can restore function, but most neurons regenerate poorly or not at all. The failure to regenerate in some cases is due to a lack of activation of cell-intrinsic regeneration pathways. Thus, these pathways might be targeted for the development of therapies that can restore neuron function after injury or disease. Here, we show that the DLK-1 MAP kinase pathway is essential for regeneration in C. elegans motor neurons. Loss of this pathway eliminates regeneration, while activating it improves regeneration. Further, these proteins also regulate the later step of growth cone migration. We conclude that after axon injury, activation of this MAP kinase cascade is required to switch the mature neuron from an aplastic state to a state capable of growth.
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影响因子: --
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