Anti-myelin-associated glycoprotein antibodies alter neurofilament spacing.
Anti-myelin-associated glycoprotein antibodies alter neurofilament spacing.
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抗髓磷脂相关糖蛋白抗体改变神经丝间距。
DOI:
10.1093/brain/awf072
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
Sheikh,KazimA
中科院分区:
文献类型:
--
作者:
Lunn,MichaelPT;Crawford,ThomasO;Hughes,RichardAC;Griffin,JohnW;Sheikh,KazimA
Axon calibre is crucial to efficient impulse transmission in the peripheral nervous system. Neurofilament numbers determine gross axonal diameter, but intra‐axonal distribution depends on the phosphorylation status of neurofilament sidearms. Myelin‐associated glycoprotein (MAG) has been implicated in the signalling cascade controlling neurofilament phosphorylation and hence in the control of axon calibre. In an electron microscopic morphometric study we measured nearest neighbour neurofilament distances (NNND) in the axons of sural nerves from patients with anti‐MAG paraproteinaemic neuropathies and compared these with normal human sural nerves and those from patients with Guillain–Barré syndrome or chronic inflammatory demyelinating polyradiculoneuropathy. Axon calibre was similar in all groups. In normal human sural nerves, axonal NNND was correlated with axonal diameter (r= 0.56). In diseased axons this correlation did not exist. The NNND was significantly reduced in demyelinated axons (30.5 2.2 nm) and those with widely spaced myelin (28.9 1.3 nm) from patients with anti‐MAG antibodies compared with normal axons from normal patients (39.8 3.2 nm) or those with demyelinating neuropathy (35.8 4.6 nm). This reinforces the hypothesis that MAG is involved in the control of neurofilament spacing through sidearm phosphorylation and demonstrates a MAG‐mediated pathogenic effect of the anti‐MAG antibody in peripheral nerves.
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DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
C. Berthold;M. Rydmark
通讯作者:
M. Rydmark
DOI:
--
发表时间:
1990
期刊:
Acta Neurologica Scandinavica, Supplementum
影响因子:
--
作者:
F. Behse
通讯作者:
F. Behse
影响因子:
5.5
作者:
ARBUTHNOTT, ER;BOYD, IA;KALU, KU
通讯作者:
KALU, KU
影响因子:
12.7
作者:
K. Tohyama;C. Idé;T. Nitatori;R. Yokota
通讯作者:
R. Yokota
DOI:
10.1083/jcb.99.2.705
发表时间:
1984-08
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hoffman PN;Griffin JW;Price DL
通讯作者:
Price DL