Potential of Ramalin and Its Derivatives for the Treatment of Alzheimer's Disease

Molecules. 2021 Oct 26;26(21):6445. doi: 10.3390/molecules26216445.

Abstract

The pathogenesis of Alzheimer's disease (AD) is still unclear, and presently there is no cure for the disease that can be used for its treatment or to stop its progression. Here, we investigated the therapeutic potential of ramalin (isolated from the Antarctic lichen, Ramalina terebrata), which exhibits various physiological activities, in AD. Specifically, derivatives were synthesized based on the structure of ramalin, which has a strong antioxidant effect, BACE-1 inhibition activity, and anti-inflammatory effects. Therefore, ramalin and its derivatives exhibit activity against multiple targets associated with AD and can serve as potential therapeutic agents for the disease.

Keywords: Alzheimer’s disease; anti-inflammatory; antioxidant; derivatives; ramalin; therapeutic potential; β-secratase.

MeSH terms

  • Alzheimer Disease / drug therapy*
  • Alzheimer Disease / metabolism
  • Amyloid Precursor Protein Secretases / antagonists & inhibitors
  • Amyloid Precursor Protein Secretases / metabolism
  • Anti-Inflammatory Agents / chemical synthesis
  • Anti-Inflammatory Agents / chemistry
  • Anti-Inflammatory Agents / therapeutic use*
  • Antioxidants / chemical synthesis
  • Antioxidants / chemistry
  • Antioxidants / therapeutic use*
  • Aspartic Acid Endopeptidases / antagonists & inhibitors
  • Aspartic Acid Endopeptidases / metabolism
  • Biphenyl Compounds / antagonists & inhibitors
  • Glutamates / chemical synthesis
  • Glutamates / chemistry
  • Glutamates / therapeutic use*
  • Humans
  • Molecular Structure
  • Picrates / antagonists & inhibitors

Substances

  • Anti-Inflammatory Agents
  • Antioxidants
  • Biphenyl Compounds
  • Glutamates
  • Picrates
  • Ramalin
  • 1,1-diphenyl-2-picrylhydrazyl
  • Amyloid Precursor Protein Secretases
  • Aspartic Acid Endopeptidases
  • BACE1 protein, human