Pseudomonas aeruginosa Biofilm Lifecycle: Involvement of Mechanical Constraints and Timeline of Matrix Production

• Published in: Antibiotics (Basel) Vol. 13; no. 8; p. 688
• Main Authors: David, Audrey, Tahrioui, Ali, Tareau, Anne-Sophie, Forge, Adrien, Gonzalez, Mathieu, Bouffartigues, Emeline, Lesouhaitier, Olivier, Chevalier, Sylvie
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 24.07.2024; MDPI
• Subjects: Adaptability; Aggregates; Analysis; Bacteria; biofilm; Biofilms; Cell adhesion; Cell spreading; Cell surface; Constraints; Contact stresses; Cystic fibrosis; Environmental stress; Extracellular matrix; Gravity; Growth; Immune system; Immunocompromised hosts; Life cycles; Life cycles (Biology); Lifestyles; mechanical constraints; Medical equipment; Microbial mats; Microorganisms; Motility; Nosocomial infections; Opportunist infection; Pseudomonas aeruginosa; Review; Signal transduction; France; mechanical constraints; Pseudomonas aeruginosa; biofilm
• ISSN: 2079-6382; 2079-6382
• DOI: 10.3390/antibiotics13080688

is an opportunistic pathogen causing acute and chronic infections, especially in immunocompromised patients. Its remarkable adaptability and resistance to various antimicrobial treatments make it difficult to eradicate. Its persistence is enabled by its ability to form a biofilm. Biofilm is a community of sessile micro-organisms in a self-produced extracellular matrix, which forms a scaffold facilitating cohesion, cell attachment, and micro- and macro-colony formation. This lifestyle provides protection against environmental stresses, the immune system, and antimicrobial treatments, and confers the capacity for colonization and long-term persistence, often characterizing chronic infections. In this review, we retrace the events of the life cycle of biofilm, from surface perception/contact to cell spreading. We focus on the importance of extracellular appendages, mechanical constraints, and the kinetics of matrix component production in each step of the biofilm life cycle.