The Complete Assessment of Small Molecule and Peptidomimetic Inhibitors of Sortase A Towards Antivirulence Treatment

Chemistry. 2024 Jul 5;30(38):e202401103. doi: 10.1002/chem.202401103. Epub 2024 Jun 19.

Abstract

This review covers the most recent advances in the development of inhibitors for the bacterial enzyme sortase A (SrtA). Sortase A (SrtA) is a critical virulence factor, present ubiquitously in Gram-positive bacteria of which many are pathogenic. Sortases are key enzymes regulating bacterial adherence to host cells, by anchoring extracellular matrix-binding proteins to the bacterial outer cell wall. By targeting virulence factors, effective treatment can be achieved, without inducing antibiotic resistance to the treatment. This is a potentially more sustainable, long-term approach to treating bacterial infections, including ones that display multiple resistance to current therapeutics. There are many promising approaches available for SrtA inhibition, some of which have the potential to advance into further clinical development, with peptidomimetic and in vivo active small molecules being among the most promising. There are currently no approved drugs on the market targeting SrtA, despite its promise, adding to the relevance of this review article, as it extends to the pharmaceutical industry additionally to academic researchers.

Keywords: Gram-positive bacteria; Sortase A; anti-biofilm compounds; antivirulence; inhibitors.

Publication types

  • Review

MeSH terms

  • Aminoacyltransferases* / antagonists & inhibitors
  • Aminoacyltransferases* / metabolism
  • Anti-Bacterial Agents* / chemistry
  • Anti-Bacterial Agents* / pharmacology
  • Bacterial Proteins* / antagonists & inhibitors
  • Bacterial Proteins* / chemistry
  • Bacterial Proteins* / metabolism
  • Cysteine Endopeptidases* / chemistry
  • Cysteine Endopeptidases* / metabolism
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology
  • Enzyme Inhibitors / therapeutic use
  • Gram-Positive Bacteria / drug effects
  • Humans
  • Peptidomimetics* / chemistry
  • Peptidomimetics* / pharmacology
  • Small Molecule Libraries* / chemistry
  • Small Molecule Libraries* / pharmacology
  • Small Molecule Libraries* / therapeutic use

Substances

  • Aminoacyltransferases
  • Cysteine Endopeptidases
  • sortase A
  • Peptidomimetics
  • Bacterial Proteins
  • Anti-Bacterial Agents
  • Small Molecule Libraries
  • Enzyme Inhibitors