Understanding the Mechanism of Action of the Anti-Dandruff Agent Zinc Pyrithione against Malassezia restricta

Sci Rep. 2018 Aug 14;8(1):12086. doi: 10.1038/s41598-018-30588-2.

Abstract

Dandruff is known to be associated with Malassezia restricta. Zinc pyrithione (ZPT) has been used as an ingredient in anti-dandruff treatments. The mechanism of ZPT has been investigated in several studies; however, a non-pathogenic model yeast, such as Saccharomyces cerevisiae was most often used. The aim of the present study was to understand how ZPT inhibits the growth of M. restricta. We analyzed the cellular metal content and transcriptome profile of ZPT-treated M. restricta cells and found that ZPT treatment dramatically increased cellular zinc levels, along with a small increase in cellular copper levels. Moreover, our transcriptome analysis showed that ZPT inhibits Fe-S cluster synthesis in M. restricta. We also observed that ZPT treatment significantly reduced the expression of lipases, whose activities contribute to the survival and virulence of M. restricta on human skin. Therefore, the results of our study suggest that at least three inhibitory mechanisms are associated with the action of ZPT against M. restricta: (i) an increase in cellular zinc levels, (ii) inhibition of mitochondrial function, and (iii) a decrease in lipase expression.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Copper / analysis
  • Dandruff / drug therapy*
  • Dandruff / microbiology
  • Fungal Proteins / metabolism
  • Gene Expression Profiling
  • Gene Expression Regulation, Fungal / drug effects
  • Humans
  • Keratolytic Agents / pharmacology*
  • Keratolytic Agents / therapeutic use
  • Lipase / metabolism
  • Malassezia / chemistry
  • Malassezia / cytology
  • Malassezia / drug effects*
  • Malassezia / enzymology
  • Microbial Sensitivity Tests
  • Mitochondria / chemistry
  • Mitochondria / drug effects
  • Organometallic Compounds / pharmacology*
  • Organometallic Compounds / therapeutic use
  • Pyridines / pharmacology*
  • Pyridines / therapeutic use
  • Zinc / analysis

Substances

  • Fungal Proteins
  • Keratolytic Agents
  • Organometallic Compounds
  • Pyridines
  • Copper
  • Lipase
  • Zinc
  • pyrithione zinc