Quantitative measurement of alternatively spliced amyloid precursor protein mRNA expression in Alzheimer's disease and normal brain by S1 nuclease protection analysis.

Journal Article

We have used an S1 nuclease protection strategy to measure alternatively spliced amyloid precursor protein (APP) mRNAs associated with Alzheimer's disease (AD) to determine whether the expression of either one or more of the transcripts correlate with observed amyloid plaque pathology. Comparison of AD with normal cortex reveals that increasing plaque density parallels an increase in the fraction of APP-695 and a corresponding decrease in APP-770 and 751 mRNA fractions. A specific increase of APP-695, the protease inhibitor-lacking APP RNA form, in those brain regions most involved with amyloid plaque formation, suggests that an imbalance in the protease inhibitor is potentially significant in the disease. These data are consistent with cellular/tissue region-specific regulation of alternative splicing accounting for AD-related changes in the expression of APP mRNA forms.

Full Text

Duke Authors

Cited Authors

  • Jacobsen, JS; Blume, AJ; Vitek, MP

Published Date

  • September 1, 1991

Published In

Volume / Issue

  • 12 / 5

Start / End Page

  • 585 - 592

PubMed ID

  • 1722874

International Standard Serial Number (ISSN)

  • 0197-4580

Language

  • eng

Conference Location

  • United States