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XB-ART-11293
FEBS Lett 2000 Mar 24;4702:221-5.
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The amyloid beta peptide abeta (25-35) induces apoptosis independent of p53.

Blasko I , Wagner M , Whitaker N , Grubeck-Loebenstein B , Jansen-Dürr P .


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Apoptosis of neuronal cells apparently plays a role in Alzheimer's disease (AD). The amyloid beta (Abeta) peptide derived from beta-amyloid precursor protein is found in AD brain in vivo and can induce apoptosis in vitro. While p53 accumulates in cells of AD brain, it is not known if p53 plays an active role in Abeta-induced apoptosis. We show here that inactivation of p53 in two experimental cell lines, either by expression of the papillomavirus E6 protein or by a shift to restrictive temperature, does not affect apoptosis induction by Abeta (25-35), indicating that Abeta induces apoptosis in a p53-independent manner.

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Species referenced: Xenopus laevis
Genes referenced: tp53