Current Microbiology

, Volume 59, Issue 4, pp 469–474

Interference of Cranberry Constituents in Cell–Cell Signaling System of Vibrio harveyi

  • Mark Feldman
  • Ervin I. Weiss
  • Itzhak Ofek
  • Doron Steinberg
Article

DOI: 10.1007/s00284-009-9462-3

Cite this article as:
Feldman, M., Weiss, E.I., Ofek, I. et al. Curr Microbiol (2009) 59: 469. doi:10.1007/s00284-009-9462-3

Abstract

Cranberry juice has long been recognized in folk medicine as a therapeutic agent, mainly in urinary track infections. It acts as an antibiofilm agent against various pathogens. Quorum sensing is process where bacteria communicate with each other via signal molecules known as autoinducers. This process is strongly involved in various bacterial pathological and physiological pathways. Various strains of Vibrio harveyi bacteria were incubated with different concentrations of nondialyzable material of cranberry (NDM) with or without addition of exogenous autoinducer. Bioluminescence regulated by the autoinducers was measured in GENios reader. Effect of NDM alone or NDM supplemented with autoinducer on quorum sensing was determined as change in bioluminescence in each treated sample compared to appropriate control in every strain. Using model of V. harveyi, we found an inhibitory effect of cranberry constituents on bacterial signaling system. This effect was reversible, since exogenous autoinducer was able to recover bioluminescence which was decreased by NDM. We hypothesized that cranberry NDM interacts with V. harveyi quorum sensing by competition with autoinducer for binding to autoinducer sensor.

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Mark Feldman
    • 1
    • 2
  • Ervin I. Weiss
    • 2
  • Itzhak Ofek
    • 3
  • Doron Steinberg
    • 1
  1. 1.Institute of Dental Sciences, Faculty of Dental MedicineHebrew University-HadassahJerusalemIsrael
  2. 2.Department of Prosthodontics, Faculty of Dental MedicineHebrew University-HadassahJerusalemIsrael
  3. 3.Department of Human Microbiology, Sackler Faculty of MedicineTel Aviv UniversityTel AvivIsrael