The Relationship Between NETosis and Biofilm Formation in Chronic Infections.

Area of Science:

• Immunology
• Microbiology
• Pathogenesis

Background:

• Chronic infections present significant challenges due to treatment resistance and biofilm formation.
• Neutrophil extracellular traps (NETs), released via NETosis, are part of innate immunity but can paradoxically support biofilms.
• The interplay between NETs and biofilms is crucial in persistent infections like cystic fibrosis and diabetic foot ulcers.

Purpose of the Study:

• To explore the bidirectional interactions between NETosis and biofilm formation in chronic infections.
• To elucidate the synergistic roles of NETs and biofilms in disease pathogenesis.
• To evaluate emerging therapeutic strategies targeting this pathogenic interplay.

Main Methods:

• Review of existing literature on NETosis mechanisms and biofilm dynamics.
• Analysis of the intersection between NETosis and biofilm formation in specific chronic infections.
• Critical evaluation of novel therapeutic interventions, including DNase treatments and PAD4 inhibitors.

Main Results:

• NETs can immobilize microbes but their components (DNA, proteins) often enhance biofilm stability and immune evasion.
• This synergy contributes to the persistence of recalcitrant infections in conditions like cystic fibrosis, diabetic foot ulcers, periodontitis, and implant-associated infections.
• Emerging therapies aim to disrupt the NET-biofilm interaction.

Conclusions:

• The interplay between NETosis and biofilms is a key factor in chronic infection persistence.
• Targeting this synergy requires integrated immunomodulatory and anti-biofilm strategies.
• Effective management of chronic infections necessitates novel therapeutic approaches addressing both NETs and biofilms.