Facts and fallacies on anti-GM1 antibodies: physiology of motor neuropathies.

Facts and fallacies on anti-GM1 antibodies: physiology of motor neuropathies.
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关于抗 GM1 抗体的事实和谬误:运动神经病的生理学。

DOI:
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发表时间:
1999
期刊:
Brain : a journal of neurology
影响因子:
--
通讯作者:
J. Kimura
J. Kimura
中科院分区:
--
文献类型:
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作者:
R. Kaji;J. Kimura

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神经节苷脂GM 1抗体(抗GM 1抗体)与格林-巴利综合征(GBS)、多灶性运动神经病(MMN)和运动神经元病的发病机制有关。虽然这些抗体的滴度升高已在多灶性运动神经病和GBS的运动轴索变体或急性运动轴索神经病(AMAN)中得到充分证明,但它们在发病机制中的确切作用仍然难以捉摸。GM 1表位不仅存在于运动神经元及其轴突中,而且存在于背根神经节细胞和感觉轴突中。如果抗GM 1抗体是致病性的,是什么决定了运动系统的偏好,以及这些抗体如何影响神经系统? 在一项体外研究中,Takigawa及其同事(Takigawa等人,1995)显示钾电流的急性增加,并且在补体存在下,在将抗体局部应用于混合神经后钠电流的不可逆损失,为抗GM 1抗体阻断钠通道,引起传导阻滞的假设提供了理论基础(Waxman,1995)。这一发现也导致了钠通道可能在运动神经元疾病的病理生理学中起作用的争论(Gutmann等,1996年)的报告。 在这个问题的大脑,帕帕鲁纳斯和同事(帕帕鲁纳斯...
Antibodies to ganglioside GM1 (anti-GM1 antibodies) have been implicated in the pathogenesis of Guillain–Barre syndrome (GBS), multifocal motor neuropathy (MMN) and motor neuron disease. Although the elevated titres of these antibodies have been amply documented in multifocal motor neuropathy and a motor axonal variant of GBS, or acute motor axonal neuropathy (AMAN), their exact role in the pathogenesis remains elusive. The GM1 epitope is present not only in motor neurons and their axons but also in the dorsal root ganglion cells and sensory axons. If anti-GM1 antibodies are pathogenic, what dictates the predilection for the motor system, and how do these antibodies affect the nervous system? In an in vitro study, Takigawa and colleagues (Takigawa et al ., 1995) showed an acute increase in the potassium current and, in the presence of complement, irreversible loss of the sodium current after topical application of the antibody to a mixed nerve, providing a rationale for the hypothesis that anti-GM1 antibodies block sodium channels, causing conduction block (Waxman, 1995). This finding also led to the contention that sodium channels may play a role in the pathophysiology of motor neuron disease (Gutmann et al ., 1996). In this issue of Brain , Paparounas and colleagues (Paparounas …
神经节苷脂样部分在周围神经中的分布。
DOI: 10.1093/brain/122.3.449
发表时间: 1999
期刊: Brain : a journal of neurology
影响因子: --
作者:
Sheikh,KA;Deerinck,TJ;Ellisman,MH;Griffin,JW
通讯作者: Griffin,JW