Molecular cloning, characterization, and inhibition studies of a β-carbonic anhydrase from Malassezia globosa, a potential antidandruff target

J Med Chem. 2012 Apr 12;55(7):3513-20. doi: 10.1021/jm300203r. Epub 2012 Mar 28.

Abstract

A β-carbonic anhydrase (CA, EC 4.2.1.1) from the fungal pathogen Malassezia globosa has been cloned, characterized, and studied for its inhibition with sulfonamides. This enzyme, designated MG-CA, has significant catalytic activity in the CO(2) hydration reaction and was inhibited by sulfonamides, sulfamates, and sulfamides with K(I) in the nanomolar to micromolar range. Several sulfonamides have also been investigated for the inhibition of growth of M. globosa, M. dermatis, M. pachydermatic, and M. furfur in cultures, whereas a mouse model of dandruff showed that treatment with sulfonamides led to fragmented fungal hyphae, as for the treatment with ketoconazole, a clinically used antifungal agent. These data prompt us to propose MG-CA as a new antidandruff drug target.

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Antifungal Agents / chemistry*
  • Antifungal Agents / pharmacology
  • Carbonic Anhydrase Inhibitors / chemistry*
  • Carbonic Anhydrase Inhibitors / pharmacology
  • Carbonic Anhydrases / chemistry*
  • Carbonic Anhydrases / genetics
  • Cloning, Molecular
  • Dermatomycoses / drug therapy
  • Dermatomycoses / microbiology*
  • Fungal Proteins / antagonists & inhibitors
  • Fungal Proteins / chemistry*
  • Fungal Proteins / genetics
  • Humans
  • Isoenzymes / antagonists & inhibitors
  • Isoenzymes / chemistry
  • Isoenzymes / genetics
  • Malassezia / drug effects
  • Malassezia / enzymology*
  • Mice
  • Microbial Sensitivity Tests
  • Models, Molecular
  • Molecular Sequence Data
  • Recombinant Fusion Proteins / antagonists & inhibitors
  • Recombinant Fusion Proteins / chemistry
  • Recombinant Fusion Proteins / genetics
  • Scalp Dermatoses / drug therapy
  • Scalp Dermatoses / microbiology*
  • Structure-Activity Relationship
  • Sulfonamides / chemistry
  • Sulfonamides / pharmacology
  • Sulfonic Acids / chemistry
  • Sulfonic Acids / pharmacology

Substances

  • Antifungal Agents
  • Carbonic Anhydrase Inhibitors
  • Fungal Proteins
  • Isoenzymes
  • Recombinant Fusion Proteins
  • Sulfonamides
  • Sulfonic Acids
  • Carbonic Anhydrases