V6421 APP-inducible neuronal cells: A model system for investigating Alzheimer's disorders

被引：27

作者：

Niikura, T

Murayama, N

Hashimoto, Y

Ito, Y

Yamagishi, Y

Matsuoka, M

Takeuchi, Y

Aiso, S

Nishimoto, I ^{[1
]}

机构：

[1] Keio Univ, Sch Med, Dept Pharmacol & Neurosci, Shinjuku Ku, Tokyo 160, Japan

[2] Keio Univ, Sch Med, Dept Anat, Shinjuku Ku, Tokyo 160, Japan

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 2000年 / 274卷 / 02期

关键词：

Alzheimer's disease; amyloid precursor protein; disease mutation; neuronal death; ecdysone-inducible system; anti-risk factor; apoptosis; electron microscopy; caspase inhibitor; pertussis toxin;

D O I：

10.1006/bbrc.2000.3143

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

APP is a precursor of beta amyloid deposited in Alzheimer's disease (AD). Although genetic studies established that mutations in APP cause familial AD (FAD), the mechanism for neuronal death by FAD mutants has not been well understood. We established neuronal cells (F11/EcR/V642I cells) in which V642I APP was inducibly expressed by ecdysone. Treatment with ecdysone, but not vehicle, killed most cells within a few days, with rounding, shrinkage, and detachment as well as nuclear fragmentation. Death was suppressed by Ac-DEVD-CHO and pertussis toxin. Electron microscopic analysis revealed that apoptosis occurred in ecdysone-treated cells. V642I-APP-induced death was suppressed by the anti-AD factors estrogen and apoE2. These data demonstrate not only that expression of this FAD gene causes neuronal apoptosis, but that F11/EcR/V642I cells, the first neuronal cells with inducible FAD gene expression, provide a useful model system in investigating AD disorders. (C) 2000 Academic Press.

引用

页码：445 / 454

页数：10

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