Deconstructing the Phage–Bacterial Biofilm Interaction as a Basis to Establish New Antibiofilm Strategies

• Published in: Viruses Vol. 14; no. 5; p. 1057
• Main Authors: Visnapuu, Annegrete, Van der Gucht, Marie, Wagemans, Jeroen, Lavigne, Rob
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 16.05.2022; MDPI
• Subjects: Adsorption; antibiofilm mechanism; Bacteria; Bacteria - genetics; Bacterial infections; bacterial–bacteriophage co-evolution; Bacteriophages - genetics; biofilm; biofilm matrix protection mechanisms; Biofilms; Cell interactions; Exopolysaccharides; Extracellular matrix; Gene expression; Gene transfer; Horizontal transfer; Infections; Metabolism; Motility; Peptidoglycans; phage; Phages; Physiology; Predation; Predators; predator–prey arms race; Proteins; Review; Transplants & implants; bacterial–bacteriophage co-evolution; phage–host interaction; biofilm; biofilm matrix protection mechanisms; predator–prey arms race; antibiofilm mechanism; phage
• ISSN: 1999-4915; 1999-4915
• DOI: 10.3390/v14051057

The bacterial biofilm constitutes a complex environment that endows the bacterial community within with an ability to cope with biotic and abiotic stresses. Considering the interaction with bacterial viruses, these biofilms contain intrinsic defense mechanisms that protect against phage predation; these mechanisms are driven by physical, structural, and metabolic properties or governed by environment-induced mutations and bacterial diversity. In this regard, horizontal gene transfer can also be a driver of biofilm diversity and some (pro)phages can function as temporary allies in biofilm development. Conversely, as bacterial predators, phages have developed counter mechanisms to overcome the biofilm barrier. We highlight how these natural systems have previously inspired new antibiofilm design strategies, e.g., by utilizing exopolysaccharide degrading enzymes and peptidoglycan hydrolases. Next, we propose new potential approaches including phage-encoded DNases to target extracellular DNA, as well as phage-mediated inhibitors of cellular communication; these examples illustrate the relevance and importance of research aiming to elucidate novel antibiofilm mechanisms contained within the vast set of unknown ORFs from phages.