In vitro anti-Leishmania activity and molecular docking of spiro-acridine compounds as potential multitarget agents against Leishmania infantum

Bioorg Med Chem Lett. 2021 Oct 1:49:128289. doi: 10.1016/j.bmcl.2021.128289. Epub 2021 Jul 24.

Abstract

Leishmaniasis is an infectious disease with several limitations regarding treatment schemes. This work reports the anti-Leishmania activity of spiroacridine compounds against the promastigote (IC50 = 1.1 to 6.0 µg / mL) and amastigote forms of the best compounds (EC50 = 4.9 and 0.9 µg / mL) inLeishmania (L.) infantumand proposes an in-silico study with possible selective therapeutic targets for L. infantum. The substituted dimethyl-amine compound (AMTAC 11) showed the best leishmanicidal activity in vitro, and was found to interact with TryRandLdTopoI. comparisons with standard inhibitors were performed, and its main interactions were elucidated. Based on the biological assessment and the structure-activity relationship study, the spiroacridine compounds appear to be promisinganti-leishmaniachemotherapeutic agents to be explored.

Keywords: Acridine compounds; Antileishmanial activity; Leishmaniasis; Multitarget agent; Structure-activity relationship.

MeSH terms

  • Acridines / chemical synthesis
  • Acridines / metabolism
  • Acridines / pharmacology*
  • Acridines / toxicity
  • DNA Topoisomerases, Type I / metabolism
  • Erythrocytes / drug effects
  • Leishmania infantum / drug effects
  • Ligands
  • Molecular Docking Simulation
  • Molecular Structure
  • NADH, NADPH Oxidoreductases / metabolism
  • Parasitic Sensitivity Tests
  • Protein Binding
  • Protozoan Proteins / metabolism
  • Spiro Compounds / chemical synthesis
  • Spiro Compounds / metabolism
  • Spiro Compounds / pharmacology*
  • Spiro Compounds / toxicity
  • Structure-Activity Relationship
  • Trypanocidal Agents / chemical synthesis
  • Trypanocidal Agents / metabolism
  • Trypanocidal Agents / pharmacology*
  • Trypanocidal Agents / toxicity

Substances

  • Acridines
  • Ligands
  • Protozoan Proteins
  • Spiro Compounds
  • Trypanocidal Agents
  • NADH, NADPH Oxidoreductases
  • trypanothione reductase
  • DNA Topoisomerases, Type I