Sleep deprivation enhances amyloid beta peptide, p-tau and serotonin in the brain: Neuroprotective effects of nanowired delivery of cerebrolysin with monoclonal antibodies to amyloid beta peptide, p-tau and serotonin

Int Rev Neurobiol. 2023:171:125-162. doi: 10.1016/bs.irn.2023.05.009. Epub 2023 Sep 22.

Abstract

Sleep deprivation is quite frequent in military during combat, intelligence gathering or peacekeeping operations. Even one night of sleep deprivation leads to accumulation of amyloid beta peptide burden that would lead to precipitation of Alzheimer's disease over the years. Thus, efforts are needed to slow down or neutralize accumulation of amyloid beta peptide (AβP) and associated Alzheimer's disease brain pathology including phosphorylated tau (p-tau) within the brain fluid environment. Sleep deprivation also alters serotonin (5-hydroxytryptamine) metabolism in the brain microenvironment and impair upregulation of several neurotrophic factors. Thus, blockade or neutralization of AβP, p-tau and serotonin in sleep deprivation may attenuate brain pathology. In this investigation this hypothesis is examined using nanodelivery of cerebrolysin- a balanced composition of several neurotrophic factors and active peptide fragments together with monoclonal antibodies against AβP, p-tau and serotonin (5-hydroxytryptamine, 5-HT). Our observations suggest that sleep deprivation induced pathophysiology is significantly reduced following nanodelivery of cerebrolysin together with monoclonal antibodies to AβP, p-tau and 5-HT, not reported earlier.

Keywords: Amyloid beta peptide; Blood–brain barrier; Brain pathology; Nanowired delivery; Phosphorylated-tau; Serotonin; Sleep deprivation.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Alzheimer Disease* / metabolism
  • Amyloid beta-Peptides
  • Antibodies, Monoclonal / metabolism
  • Antibodies, Monoclonal / pharmacology
  • Antibodies, Monoclonal / therapeutic use
  • Brain / metabolism
  • Humans
  • Nerve Growth Factors / metabolism
  • Nerve Growth Factors / pharmacology
  • Nerve Growth Factors / therapeutic use
  • Neuroprotective Agents* / therapeutic use
  • Serotonin / metabolism
  • Sleep Deprivation / drug therapy

Substances

  • Amyloid beta-Peptides
  • Serotonin
  • cerebrolysin
  • Neuroprotective Agents
  • Antibodies, Monoclonal
  • Nerve Growth Factors