Cellular and molecular basis of beta-amyloid precursor protein metabolism. Review uri icon

Overview

abstract

  • In molecular neurobiology, perhaps no molecule has been as thoroughly examined as Alzheimer's beta-amyloid precursor protein (betaAPP). In the ten years since the cDNA encoding betaAPP was cloned, the protein has been the subject of unparalleled scrutiny on all levels. From molecular genetics and cellular biology to neuroanatomy and epidemiology, no scientific discipline has been left unexplored - and with good reason. beta-amyloid (Abeta) is the main constituent of the amyloidogenic plaques which are a primary pathological hallmark of Alzheimer's disease, and betaAPP is the protein from which Abeta is cleaved and released. Unraveling the molecular events underlying Abeta generation has been, and remains, of paramount importance to scientists in our field. In this review we will trace the progress that has been made in understanding the molecular and cellular basis of betaAPP trafficking and processing, or alternatively stated, the molecular basis for Abeta generation. Imperative to a complete understanding of Abeta generation is the delineation of its subcellular localization and the identification of proteins which play either direct or accessory roles in Abeta generation. We will focus on the regulation of betaAPP cleavage through diverse signal transduction mechanisms and discuss possible points of therapeutic intercession in what has been postulated to be a seminal molecular step in the cascade of events terminating in the onset of dementia, a loss of neurons, and tragically, eventual death from Alzheimer's disease.

publication date

  • March 26, 1998

Research

keywords

  • Amyloid beta-Protein Precursor
  • Brain Chemistry

Identity

Scopus Document Identifier

  • 4544280730

Digital Object Identifier (DOI)

  • 10.2741/a283

PubMed ID

  • 9514984

Additional Document Info

volume

  • 3