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A proposed role for diffusible signal factors in the biofilm formation and morphological transformation of Helicobacter pylori
1 Department of Microbiology, Wroclaw Medical University, Wroclaw, Poland  
Turk J Gastroenterol ; : -
DOI: 10.5152/tjg.2017.17349
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Key Words: Coccoid form, DSF, fatty acids, Helicobacter pylori, morphological transformation
Abstract

Due to the increasing resistance of Helicobacter pylori to antibiotics, there is a growing need for new strategies for the effective eradication of this pathogen. The inhibition of quorum-sensing activity in most microorganismsmleads to a decrease in virulence. A different reaction is observed in H. pylori, as interfering with the productionmof autoinducer-2 initiates biofilm formation and increases the survival of these bacteria. Therefore, it is believed that there is an alternative way to control the physiological changes of H. pylori exposed to environmental stress. In this article, we present the compounds probably involved in the modulation of H. pylori virulence. These diffusible  signal factors (DSFs) are fatty acid signal molecules involved in communication between microbes. DSFs are likely to stimulate H. pylori transition into a sedentary state that correlates with bacterial transformation into a more resistant coccoid form and initiates biofilm formation. Biofilm is a structure that plays a crucial role in protecting against adverse environmental factors (low pH, oxidative stress, action of immune system) and limiting the effective concentration of antimicrobial substances. This article has suggested and characterized the existence of an alternative DSF-mediated cell-cell signaling of H. pylori, which controls autoaggregative behaviors, biofilm formation, and the transition of microorganisms into the coccoid form.

 

Cite this article as: Ünal HÜ, Saruç M. The Verdict: Proton Pump Inhibitors have been found guilty of causing death. Any objection? Turk J Gastroenterol 2017. DOI: 10.5152/tjg.2017.111017

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