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Designing type II topoisomerase inhibitors: A molecular modeling approach

Juan J Perez, Cecylia S Lupala, Patricia Gomez-Gutierrez1

  • 1Department of Chemical Engineering. Universitat Politecnica de Catalunya, ETSEIB. Av. Diagonal, 647; 08028 Barcelona, Spain. juan.jesus.perez@upc.edu.

Current Topics in Medicinal Chemistry
|November 19, 2013
PubMed

Insights

To combat antimicrobial resistance, researchers are developing new drugs targeting resilient bacterial enzymes like type II topoisomerases. Molecular modeling aids in designing drugs less prone to resistance, ensuring effective treatments for nosocomial infections.

Area of Science:

  • Microbiology
  • Drug Discovery
  • Computational Chemistry

Background:

  • Nosocomial infections are driven by persistent, drug-resistant pathogens.
  • Antimicrobial resistance necessitates strategies like targeting evolutionarily constrained bacterial enzymes.
  • Molecular modeling offers insights into resistance mechanisms and drug design.

Purpose of the Study:

  • To explore type II topoisomerases as antibacterial targets.
  • To rationalize drug resistance at the molecular level.
  • To guide the design of novel antibacterial agents overcoming resistance.

Main Methods:

  • Focus on type II topoisomerases as validated antibacterial targets.
  • Utilizing molecular modeling to analyze ligand-target interactions and resistance origins.
  • Investigating diverse inhibition strategies: ATPase function, cleavage complex stabilization, DNA hydrolysis prevention.

Main Results:

  • Identified type II topoisomerases as key targets for antibacterial drug development.
  • Rationalized the molecular basis of antimicrobial resistance.
  • Proposed strategies for circumventing resistance, including diones and quinole-carbonitrile derivatives.

Conclusions:

  • Targeting type II topoisomerases is a promising strategy against resistant nosocomial pathogens.
  • Molecular modeling is crucial for designing next-generation antibiotics.
  • Novel drug designs, like diones and quinole-carbonitriles, offer new mechanisms to combat resistance.

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