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Individual and combined effects of mycotoxins from typical indoor moulds

A Mueller1, U Schlink, G Wichmann

  • 1UFZ Helmholtz Centre for Environmental Research, Division Health Science, Permoserstr. 15, 04318 Leipzig, Germany. a.mueller@ufz.de

Toxicology in Vitro : an International Journal Published in Association with BIBRA
|July 16, 2013
PubMed

Insights

Common indoor molds produce mycotoxins like patulin and gliotoxin. This study found these toxins can act synergistically, impacting single-celled organisms and highlighting the need to understand mixture toxicity.

Area of Science:

  • Environmental Science
  • Toxicology
  • Microbiology

Background:

  • Common indoor molds can produce mycotoxins such as patulin, gliotoxin, and sterigmatocystin.
  • Exposure to humans occurs through inhalation of contaminated spores and particulates.
  • Limited data exists on the combined toxicological effects of these mycotoxins.

Purpose of the Study:

  • To evaluate the combined toxic effects of patulin, gliotoxin, and sterigmatocystin.
  • To analyze synergistic and antagonistic interactions using the MIXTOX model.
  • To assess the applicability of the MIXTOX model for predicting mixture toxicity.

Main Methods:

  • Utilized the MIXTOX model (EU project NOMIRACLE) to analyze mycotoxin interactions.
  • Tested the effects of individual mycotoxins and their mixtures on Tetrahymena pyriformis.
  • Determined EC50 values and observed dose-dependent deviations in toxicity.

Main Results:

  • Gliotoxin and patulin exhibited synergistic effects, attributed to similar modes of action.
  • Combinations involving sterigmatocystin showed antagonistic effects, potentially switching to synergism.
  • The MIXTOX model proved effective in predicting the combined effects of these mycotoxins.

Conclusions:

  • Mycotoxin mixtures can display complex interactions, including synergism and antagonism.
  • Understanding these combined effects is crucial for accurate risk assessment of indoor mold exposure.
  • The MIXTOX model is a valuable tool for predicting the toxicity of mycotoxin mixtures.
Keywords:
AntagonismCombined effectsConcentration additionIndependent actionIndoor mouldMycotoxinsSynergism

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