A novel mechanism for cyclic adenosine monophosphate-mediated memory formation: Role of amyloid beta

Ann Neurol. 2014 Apr;75(4):602-7. doi: 10.1002/ana.24130. Epub 2014 Apr 14.

Abstract

Cyclic adenosine monophosphate (cAMP) regulates long-term potentiation (LTP) and ameliorates memory in healthy and diseased brain. Increasing evidence shows that, under physiological conditions, low concentrations of amyloid β (Aβ) are necessary for LTP expression and memory formation. Here, we report that cAMP controls amyloid precursor protein (APP) translation and Aβ levels, and that the modulatory effects of cAMP on LTP occur through the stimulation of APP synthesis and Aβ production.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amyloid beta-Peptides / metabolism*
  • Amyloid beta-Protein Precursor / deficiency
  • Amyloid beta-Protein Precursor / genetics
  • Animals
  • Cells, Cultured
  • Colforsin / pharmacology
  • Cyclic AMP / metabolism
  • Cyclic AMP / pharmacology*
  • Cyclic AMP-Dependent Protein Kinases / genetics
  • Cyclic AMP-Dependent Protein Kinases / metabolism
  • Enzyme Inhibitors / pharmacology
  • Gene Expression Regulation / drug effects
  • Hippocampus / cytology
  • Humans
  • In Vitro Techniques
  • Long-Term Potentiation / drug effects
  • Long-Term Potentiation / genetics
  • Male
  • Memory / physiology*
  • Mice
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Neurons / drug effects*
  • Neurons / metabolism
  • Rats
  • Rats, Sprague-Dawley

Substances

  • Amyloid beta-Peptides
  • Amyloid beta-Protein Precursor
  • Enzyme Inhibitors
  • Colforsin
  • Cyclic AMP
  • Cyclic AMP-Dependent Protein Kinases