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Mycopathologia

, Volume 183, Issue 6, pp 935–940 | Cite as

Up-Regulation of Antimicrobial Peptides Gallerimycin and Galiomicin in Galleria mellonella Infected with Candida Yeasts Displaying Different Virulence Traits

  • Jaroslava Dekkerová-Chupáčová
  • Elisa Borghi
  • Giulia Morace
  • Helena BujdákováEmail author
Short Communication
  • 67 Downloads

Abstract

Galleria mellonella has been described as a cheap and an easy-to-reproduce model for the study of fungal infections. We hypothesized that yeasts with higher virulence potential decrease survival and significantly trigger an immune response in G. mellonella through the regulation of innate immunity-related genes encoding antimicrobial peptides (AMPs) such as gallerimycin and galiomicin. Candida albicans SC5314 and Candida dubliniensis CBS 7987, selected because of their different virulence potential, were used for a killing assay followed by the determination of gene expression using qPCR. In vivo results confirmed a significantly (p = 0.0321) lower pathogenicity for C. dubliniensis than for C. albicans. Accordingly, the induction of C. dubliniensis AMPs was lower at all the selected time points post-infection (1 h, 24 h, 48 h). Moreover, we observed an extremely high regulation of the galiomicin gene compared to the gallerimycin one, suggesting a different role of the tested AMPs in protecting G. mellonella from candidiasis.

Keywords

G. mellonella Gallerimycin Galiomicin Gene expression C. albicans C. dubliniensis 

Notes

Acknowledgements

This work was supported by the Slovak Research and Development Agency under Contract No. [APVV-15-0347 to H.B.] and by the Grant VEGA [1/0628/15 to H.B.] supported by the Ministry of Education, Science, Research and Sport of the Slovak Republic. The authors wish to thank Dr. Stanislava Dižová for help with the qPCR technique.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • Jaroslava Dekkerová-Chupáčová
    • 1
  • Elisa Borghi
    • 2
  • Giulia Morace
    • 2
  • Helena Bujdáková
    • 1
    Email author
  1. 1.Department of Microbiology and Virology, Faculty of Natural SciencesComenius University in BratislavaBratislavaSlovakia
  2. 2.Department of Health Sciences, San Paolo Medical SchoolUniversità degli Studi di MilanoMilanItaly

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