Journal of oral microbiology · 2025
Characterisation of novel Fusobacterium nucleatum bacteriophages and their efficacy in disrupting pathogenic dual-species biofilms.
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Kabwe Mwila, Tucci Joseph, Dashper Stuart, Binte Mohamed Yakob Adil Siti Saleha, Petrovski Steve
Аннотация
BACKGROUND: The targeted manipulation of the microbiome using bacteriophages represents a novel approach for addressing antibiotic resistance and polymicrobial diseases.
OBJECTIVE: To isolate and characterise bacteriophages for key bacteria associated with pathogenic periodontal biofilms.
DESIGN: Using standard microbiological and bioinformatics techniques, this study isolated and characterized lytic (FNU2 and FNU3) and temperate (FNU4) bacteriophages specific to Fusobacterium nucleatum, a key bacterium in oral biofilms linked to periodontitis and a range of cancers.
RESULTS: Morphological and genomic analyses revealed distinct features, with FNU2 and FNU3 classified as Latrobevirus and FNU4 as an unclassified Caudoviricetes. Comparative bioinformatic analysis revealed various defence and anti-defence systems in bacterial hosts and bacteriophages, highlighting complex interactions. Functional assays demonstrated the efficacy of these bacteriophages in disrupting single-species F. nucleatum biofilms and dual-species biofilms of F. nucleatum and Porphyromonas gingivalis.
CONCLUSION: These findings highlight the potential of F. nucleatum-specific bacteriophages as precise tools for microbiome modulation in chronic diseases such as periodontitis and cancer.
OBJECTIVE: To isolate and characterise bacteriophages for key bacteria associated with pathogenic periodontal biofilms.
DESIGN: Using standard microbiological and bioinformatics techniques, this study isolated and characterized lytic (FNU2 and FNU3) and temperate (FNU4) bacteriophages specific to Fusobacterium nucleatum, a key bacterium in oral biofilms linked to periodontitis and a range of cancers.
RESULTS: Morphological and genomic analyses revealed distinct features, with FNU2 and FNU3 classified as Latrobevirus and FNU4 as an unclassified Caudoviricetes. Comparative bioinformatic analysis revealed various defence and anti-defence systems in bacterial hosts and bacteriophages, highlighting complex interactions. Functional assays demonstrated the efficacy of these bacteriophages in disrupting single-species F. nucleatum biofilms and dual-species biofilms of F. nucleatum and Porphyromonas gingivalis.
CONCLUSION: These findings highlight the potential of F. nucleatum-specific bacteriophages as precise tools for microbiome modulation in chronic diseases such as periodontitis and cancer.