Molecular typing of multi-drug resistant Candida albicans isolated from the Segamat community, Malaysia

Braz J Microbiol. 2021 Dec;52(4):2351-2356. doi: 10.1007/s42770-021-00558-4. Epub 2021 Jul 8.

Abstract

In the past decade, researchers have focused on the emergence of drug resistance in fungal pathogens such as Candida albicans, also considered as pathobionts that occur harmlessly in the human body but could potentially be triggered to cause diseases. The increasing rate of antifungal resistance in commensal gut fungi is alarming and should be further investigated. Here, we report seven novel MLST (Multi Locus Sequence Typing) genotypes of multi-drug resistant C. albicans isolates obtained from participants of a community study in Segamat, a district in the state of Johor, Malaysia. A total of eight C. albicans were isolated from four individuals, which were found to express high resistance against fluconazole, itraconazole, voriconazole and 5-fluorocytosine antifungals. MLST was performed to assess the clonal relatedness of these drug resistant isolates among themselves and against other strains isolated from other geographical regions. The novel MLST C. albicans sequence types suggest significant genetic changes compared to previous genotypes.

Keywords: Antifungal resistance; Community study; Fungal pathogens; Multi locus sequence typing (MLST).

MeSH terms

  • Antifungal Agents / pharmacology
  • Candida albicans* / drug effects
  • Candida albicans* / genetics
  • Candida albicans* / isolation & purification
  • Candidiasis / microbiology
  • Drug Resistance, Fungal* / drug effects
  • Drug Resistance, Fungal* / genetics
  • Drug Resistance, Multiple / genetics
  • Humans
  • Malaysia
  • Microbial Sensitivity Tests
  • Multilocus Sequence Typing

Substances

  • Antifungal Agents