Abstract
Insulin-degrading enzyme (IDE) is implicated in the pathogenesis of type 2 diabetes mellitus (DM2) and Alzheimer’s disease (AD). Here we provide genetic evidence that Drosophila Ide (dIde) antagonizes the insulin signaling pathway and human Aβ-induced neurotoxicity in Drosophila. In this study, we also generated a dIde knockout mutant (dIdeKO) by gene targeting, and found that loss of IDE increases the content of the major insect blood sugar, trehalose, thus suggesting a conserved role of IDE in sugar metabolism. Using dIdeKO as a model, further investigations into the biological functions of IDE and its role in the pathogenesis of DM2 and AD can be made.
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