Zeolite 4A as a jammer of bacterial communication in Chromobacterium violaceum and Pseudomonas aeruginosa


ULUSOY S. , B Akalin R., cevikbas H., Berisha A., ORAL A., TINAZ G.

FUTURE MICROBIOLOGY, 2022 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2022
  • Doi Number: 10.2217/fmb-2021-0174
  • Title of Journal : FUTURE MICROBIOLOGY
  • Keywords: biofilms, modeling, Pseudomonas aeruginosa, quorum sensing, QUORUM SENSING INHIBITORS, BIOFILM FORMATION, ESSENTIAL OILS, GENES, DERIVATIVES, ADSORPTION, EXPRESSION, VIRULENCE, ENZYME, STEEL

Abstract

Aim: To investigate the hypothesis that zeolites interfere with quorum-sensing (QS) systems of Chromobacterium violaceum and Pseudomonas aeruginosa by adsorbing N-acyl homoserine lactone (AHL) signal molecules. Methods: QS inhibition by zeolite 4A was investigated using an AHL-based bioreporter assay. The adsorption of the AHLs was evaluated by performing inductively coupled plasma-optical emission spectroscopy and confirmed by Monte Carlo and molecular dynamic simulations. Results: Zeolite 4A reduced the violacein production in C. violaceum by over 90% and the biofilm formation, elastase and pyocyanin production in P. aeruginosa by 87, 68 and 98%, respectively. Conclusion: Zeolite 4A disrupts the QS systems of C. violaceum and P. aeruginosa by means of adsorbing 3-oxo-C6-AHL and 3-oxo-C12-AHL signaling molecules and can be developed as a novel QS jammer to combat P. aeruginosa-related infections.