Function of glutaredoxin 3 (Grx3) in oxidative stress response caused by iron homeostasis disorder in Candida albicans

Future Microbiol. 2017 Nov:12:1397-1412. doi: 10.2217/fmb-2017-0098. Epub 2017 Oct 17.

Abstract

Aim: Glutaredoxin is a conserved oxidoreductase in eukaryotes and prokaryotes. This study aimed to determine the role of Grx3 in cell survival, iron homeostasis and the oxidative stress response in Candida albicans.

Materials & methods: A grx3Δ/Δ mutant was obtained using PCR-mediated homologs recombination. The function of Grx3 was investigated by a series of biochemical methods.

Results: Deletion of GRX3 impaired growth and cell cycle, disturbance of iron homeostasis and activated the oxidative stress response. Furthermore, disruption of GRX3 caused oxidative damage and growth defects of C. albicans.

Conclusion: Our findings provide new insights into the role of GRX3 in C. albicans.

Keywords: Candida albicans; Grx3; iron homeostasis; oxidative stress response.

MeSH terms

  • Candida albicans / enzymology*
  • Candida albicans / genetics
  • Cell Cycle
  • Gene Deletion
  • Glutaredoxins / metabolism*
  • Homologous Recombination / genetics
  • Iron / metabolism*
  • Mutation
  • Oxidative Stress*

Substances

  • Glutaredoxins
  • Iron