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Membrane perturbation induced by papiliocin peptide, derived from Papilio xuthus, in Candida albicans

Juneyoung Lee1, Jae-Sam Hwang, Bomi Hwang

  • 1School of Life Sciences and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, Korea.

Journal of Microbiology and Biotechnology
|August 28, 2010
PubMed

Insights

Papiliocin, isolated from swallowtail butterflies, disrupts the fungal plasma membrane of Candida albicans. This butterfly-derived peptide likely acts by forming pores, offering a novel antifungal mechanism.

Area of Science:

  • Biochemistry
  • Mycology
  • Pharmacology

Background:

  • Papiliocin, a peptide from Papilio xuthus, has shown potential antimicrobial activity.
  • Understanding its specific antifungal mechanism is crucial for therapeutic development.

Purpose of the Study:

  • To elucidate the antifungal mechanism of papiliocin against Candida albicans.
  • To investigate papiliocin's interaction with the fungal cell membrane.

Main Methods:

  • Confocal laser scanning microscopy (CLSM) to visualize cellular effects.
  • 1,6-diphenyl-1,3,5-hexatriene (DPH) fluorescence analysis for membrane integrity.
  • FITC-dextran (FD) release assay from liposomes to assess pore formation.

Main Results:

  • Papiliocin was found to disturb the plasma membrane of Candida albicans.
  • Evidence suggests papiliocin induces pore formation in the fungal membrane.
  • Estimated pore radius ranges from 2.3 nm to 3.3 nm.

Conclusions:

  • Papiliocin exhibits antifungal activity by targeting and disrupting the fungal plasma membrane.
  • The mechanism involves pore formation, leading to cell membrane damage.
  • Papiliocin represents a potential candidate for novel antifungal therapies.

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