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Presenilin-1 and the amyloid precursor protein are transported bidirectionally in the sciatic nerve of adult rat.

机译:Presenilin-1和淀粉样前体蛋白在成年大鼠的坐骨神经中双向运输。

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摘要

The amyloid precursor protein (APP) and presenilin-1 (PS-1) are not only of importance for the normal functioning of the various neurons, but also play central roles in the pathogenesis of Alzheimer's disease (AD). Through the use of immunohistochemical and Western blot techniques, the bidirectional axonal transport of these proteins has been demonstrated in the sciatic nerve of adult rat. Double-ligation of the sciatic nerve for 6, 12 or 24h was observed to cause a progressive accumulation of the 45kDa presenilin-1 holoprotein and APPs with molecular masses of 116 and 94kDa on both sites of the ligature. It is concluded that the functions of presenilin-1 and APPs are not restricted to the neuronal perikarya: they may carry information in both directions, from the cell body to the axon terminals and vice versa.
机译:淀粉样前体蛋白(APP)和早老素-1(PS-1)不仅对各种神经元的正常功能很重要,而且在阿尔茨海默氏病(AD)的发病机理中也起着重要作用。通过使用免疫组织化学和蛋白质印迹技术,已经在成年大鼠的坐骨神经中证明了这些蛋白的双向轴突运输。坐骨神经的两次结扎持续6、12或24h会在结扎的两个位点上引起45kDa早老素1全蛋白和分子量分别为116和94kDa的APP的逐步积累。结论是presenilin-1和APP的功能并不局限于神经周围核:它们可能在两个方向上携带信息,从细胞体到轴突末端,反之亦然。

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