A Cerberus-Inspired Anti-Infective Multicomponent Gatekeeper Hydrogel against Infections with the Emerging "Superbug" Yeast Candida auris

Macromol Biosci. 2020 Apr;20(4):e2000005. doi: 10.1002/mabi.202000005. Epub 2020 Feb 27.

Abstract

The pathogenic yeast Candida auris has received increasing attention due to its ability to cause fatal infections, its resistance toward important fungicides, and its ability to persist on surfaces including medical devices in hospitals. To brace health care systems for this considerable risk, alternative therapeutic approaches such as antifungal peptides are urgently needed. In clinical wound care, a significant focus has been directed toward novel surgical (wound) dressings as first defense lines against C. auris. Inspired by Cerberus the Greek mythological "hound of Hades" that prevents the living from entering and the dead from leaving hell, the preparation of a gatekeeper hybrid hydrogel is reported featuring lectin-mediated high-affinity immobilization of C. auris cells from a collagen gel as a model substratum in combination with a release of an antifungal peptide drug to kill the trapped cells. The vision is an efficient and safe two-layer medical composite hydrogel for the treatment of severe wound infections that typically occur in hospitals. Providing this new armament to the repertoire of possibilities for wound care in critical (intensive care) units may open new routes to shield and defend patients from infections and clinical facilities from spreading and invasion of C. auris and probably other fungal pathogens.

Keywords: Candida auris; compound encapsulation; drug delivery; intrinsic antimicrobial activity; multicomponent hydrogels.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antifungal Agents / chemical synthesis
  • Antifungal Agents / pharmacology*
  • Bacterial Proteins / genetics
  • Bacterial Proteins / metabolism
  • Bandages
  • Candida / drug effects*
  • Candida / growth & development
  • Candida / pathogenicity
  • Collagen / chemistry
  • Drug Resistance, Multiple, Fungal / drug effects*
  • Gene Expression
  • Humans
  • Hydrogels / chemistry
  • Hydrogels / pharmacology*
  • Lectins / genetics
  • Lectins / metabolism
  • Luminescent Proteins / genetics
  • Luminescent Proteins / metabolism
  • Methionine / chemistry
  • Microbial Sensitivity Tests
  • Organophosphorus Compounds / chemistry
  • Peptides / chemical synthesis
  • Peptides / pharmacology*
  • Recombinant Fusion Proteins / genetics
  • Recombinant Fusion Proteins / metabolism
  • Serum Albumin, Bovine / chemistry
  • Skin / drug effects
  • Swine
  • Trityl Compounds / chemistry

Substances

  • Antifungal Agents
  • Bacterial Proteins
  • Cm-p5 compound
  • Hydrogels
  • Lectins
  • Luminescent Proteins
  • Organophosphorus Compounds
  • Peptides
  • Recombinant Fusion Proteins
  • Trityl Compounds
  • yellow fluorescent protein, Bacteria
  • tetramethylolphosphonium chloride
  • Serum Albumin, Bovine
  • Collagen
  • Methionine