Amyloid precursor protein in aged nonhuman primates.

Amyloid precursor protein in aged nonhuman primates.
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老年非人灵长类动物中的淀粉样前体蛋白。

DOI:
10.1073/pnas.88.4.1461
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发表时间:
1991
影响因子:
11.1
通讯作者:
Price,DL
Price,DL
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Martin,LJ;Sisodia,SS;Koo,EH;Cork,LC;Dellovade,TL;Weidemann,A;Beyreuther,K;Masters,C;Price,DL

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在阿尔茨海默病患者和年迈的非人类灵长类动物中,淀粉样蛋白沉积在脑实质的老年斑中,以及一些脑膜和皮质血管的壁上。淀粉样蛋白主要由β/A4组成,这是一种4 kDa的多肽,来源于淀粉样前体蛋白(APP)的跨膜形式。我们研究了4到41岁猕猴大脑皮质中β/A4和APP(在β/A4区域之外)的分布。在所有动物中,APP免疫反应存在于皮质神经元的细胞体、近端树突和轴突中。在老年动物中,均有老年斑,大的APP阳性轴突明显,APP免疫反应阳性的轴突位于β/A4免疫反应斑块周围的轴突中。在一些斑块中,APP免疫反应元件位于β/A4沉积附近。APP免疫反应性存在于神经细胞膜、树突、轴突和含β/A4斑块的轴突中,支持神经元可以作为沉积在脑实质中的淀粉样蛋白的一个来源的假说。
In individuals with Alzheimer disease and in aged nonhuman primates, deposits of amyloid occur in senile plaques in brain parenchyma and in the walls of some meningeal and cortical vessels. Amyloid is primarily composed of beta/A4, a 4-kDa peptide derived from the transmembrane form of an amyloid precursor protein (APP). We examined the distribution of beta/A4 and APP (outside the beta/A4 domain) in cerebral cortices of monkeys ranging in age from 4 to 41 years. In all animals, APP immunoreactivity was present in cell bodies, proximal dendrites, and axons of cortical neurons. In aged animals, all of which showed senile plaques, large APP-positive axons were conspicuous, and APP immunoreactivity was present in neurites around beta/A4-immunoreactive plaques. In some plaques, APP-immunoreactive elements were located in proximity to deposits of beta/A4. The presence of APP immunoreactivity in neuronal perikarya, dendrites, axons, and in neurites within beta/A4-containing plaques supports the hypothesis that neurons can serve as one source of amyloid deposited in brain parenchyma.
DOI: --
发表时间: 1977
期刊:
影响因子: --
作者:
J. Oatis;J. Hynes
通讯作者: J. Hynes
DOI: --
发表时间: 1977
影响因子: 5.1
作者:
K. Harrap;G. A. Taylor;G. Browman
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DOI: --
发表时间: 1983
影响因子: --
作者:
J. Hynes;Y. C. Yang;G. McCue;M. B. Benjamin
通讯作者: M. B. Benjamin
DOI: 10.1093/jnci/52.4.1101
发表时间: 1974-01-01
期刊: JOURNAL OF THE NATIONAL CANCER INSTITUTE
影响因子: --
作者:
TOMPKINS, WA;WATRACH, AM;HARRIS, JA
通讯作者: HARRIS, JA
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DOI: --
发表时间: 1981
期刊:
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作者:
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通讯作者: J. Bertino