Translational control of BACE1 may go awry in Alzheimer's disease

Neuron. 2008 Dec 26;60(6):941-3. doi: 10.1016/j.neuron.2008.12.010.

Abstract

Our understanding of the mechanisms whereby BACE1, the aspartyl protease required for the initial cleavage of APP to generate amyloid-beta (Abeta), is regulated in Alzheimer's disease (AD) remains incomplete. In this issue of Neuron, O'Connor and coworkers show how energy deprivation, a potential risk factor in AD, triggers the phosphorylation of the translation initiation factor eIF2alpha to elevate the translation efficiency of a set of stress-related transcripts, including that of BACE1, and increases the level of BACE1, thereby accelerating amyloidogenesis.

Publication types

  • Comment

MeSH terms

  • Alzheimer Disease / metabolism*
  • Alzheimer Disease / pathology
  • Amyloid Precursor Protein Secretases / genetics
  • Amyloid Precursor Protein Secretases / metabolism*
  • Amyloid beta-Peptides / metabolism*
  • Animals
  • Aspartic Acid Endopeptidases / genetics
  • Aspartic Acid Endopeptidases / metabolism*
  • Eukaryotic Initiation Factor-2 / metabolism
  • Humans
  • Protein Biosynthesis / physiology
  • Saccharomyces cerevisiae Proteins / metabolism

Substances

  • Amyloid beta-Peptides
  • Eukaryotic Initiation Factor-2
  • FUN12 protein, S cerevisiae
  • Saccharomyces cerevisiae Proteins
  • Amyloid Precursor Protein Secretases
  • Aspartic Acid Endopeptidases
  • BACE1 protein, human