Small cationic antimicrobial peptidomimetics: emerging candidate for the development of potential anti-infective agents

Curr Pharm Des. 2013;19(32):5809-23. doi: 10.2174/13816128113199990003.

Abstract

Rapid increase in the emergence and spread of microbes resistant to conventionally used antibiotics has become a major threat to global health care. Antimicrobial peptides (AMPs) are considered as a potential source of novel antibiotics because of their numerous advantages such as broad-spectrum activity, lower tendency to induce resistance, immunomodulatory response and unique mode of action. However, AMPs have several drawbacks such as; susceptibility to protease degradation, toxicity and high costs of manufacturing. Therefore, extensive research efforts are underway to explore the therapeutic potential of these fascinating natural compounds. This review highlights the potential of small cationic antimicrobial peptidomimetics (SCAMPs; M.W. ≅ 700 Da) as new generation antibiotics. In particular, we focused on recently identified small active pharmacophore from bulky templates of native AMPs, β-peptides, and lipopeptides. In addition, various design strategies recently undertaken to improve the physicochemical properties (proteolytic stability & plasma protein binding) of small cationic peptides have also been discussed.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / metabolism
  • Anti-Bacterial Agents / pharmacology*
  • Antimicrobial Cationic Peptides / chemistry
  • Antimicrobial Cationic Peptides / metabolism
  • Antimicrobial Cationic Peptides / pharmacology*
  • Drug Design*
  • Drug Resistance, Bacterial
  • Humans
  • Peptide Hydrolases / metabolism
  • Protein Binding
  • Proteolysis

Substances

  • Anti-Bacterial Agents
  • Antimicrobial Cationic Peptides
  • Peptide Hydrolases