Development of anti-acanthamoebic approaches

Int Microbiol. 2021 Aug;24(3):363-371. doi: 10.1007/s10123-021-00171-3. Epub 2021 Mar 23.

Abstract

Acanthamoeba keratitis is a sight-endangering eye infection, and causative organism Acanthamoeba presents a significant concern to public health, given escalation of contact lens wearers. Contemporary therapy is burdensome, necessitating prompt diagnosis and aggressive treatment. None of the contact lens disinfectants (local and international) can eradicate Acanthamoeba effectively. Using a range of compounds targeting cellulose, ion channels, and biochemical pathways, we employed bioassay-guided testing to determine their anti-amoebic effects. The results indicated that acarbose, indaziflam, terbuthylazine, glimepiride, inositol, vildagliptin and repaglinide showed anti-amoebic effects. Compounds showed minimal toxicity on human cells. Therefore, effects of the evaluated compounds after conjugation with nanoparticles should certainly be the subject of future studies and will likely lead to promising leads for potential applications.

Keywords: Acanthamoeba; Contact lens disinfectants; Eye infection; Keratitis.

MeSH terms

  • Acanthamoeba Keratitis / drug therapy*
  • Acanthamoeba Keratitis / parasitology*
  • Acanthamoeba castellanii / drug effects*
  • Acarbose / pharmacology
  • Antiprotozoal Agents / pharmacology*
  • Carbamates / pharmacology
  • Cell Line
  • Contact Lens Solutions / pharmacology
  • Contact Lenses / adverse effects
  • Contact Lenses / parasitology*
  • HaCaT Cells
  • Humans
  • Indenes / pharmacology
  • Inositol / pharmacology
  • Nanoparticles
  • Piperidines / pharmacology
  • Sulfonylurea Compounds / pharmacology
  • Triazines / pharmacology
  • Vildagliptin / pharmacology

Substances

  • Antiprotozoal Agents
  • Carbamates
  • Contact Lens Solutions
  • Indenes
  • N-(2,3-dihydro-2,6-dimethyl-1H-inden-1-yl)-6-(1-fluoroethyl)-1,3,5-triazine-2,4-diamine
  • Piperidines
  • Sulfonylurea Compounds
  • Triazines
  • Inositol
  • repaglinide
  • glimepiride
  • Vildagliptin
  • terbutylazine
  • Acarbose