Metabolite-mediated interactions and direct contact between Fusobacterium varium and Faecalibacterium prausnitzii

Abstract Background The human gut harbors a diverse microbiota that is crucial for maintaining health but also contributes to several diseases. Understanding how microbial communities are assembled and maintained is critical for advancing gut health. Results We identified a unique interaction betwee...

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Main Authors: Koji Hosomi, Satoko Maruyama, Tsubasa Matsuoka, Mari Furuta, Yoko Tojima, Keita Uchiyama, Makiko Morita, Hitoshi Kawashima, Toshiki Kobayashi, Jun Kunisawa
Format: Article
Language:English
Published: BMC 2025-07-01
Series:Microbiome
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Online Access:https://doi.org/10.1186/s40168-025-02168-w
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author Koji Hosomi
Satoko Maruyama
Tsubasa Matsuoka
Mari Furuta
Yoko Tojima
Keita Uchiyama
Makiko Morita
Hitoshi Kawashima
Toshiki Kobayashi
Jun Kunisawa
author_facet Koji Hosomi
Satoko Maruyama
Tsubasa Matsuoka
Mari Furuta
Yoko Tojima
Keita Uchiyama
Makiko Morita
Hitoshi Kawashima
Toshiki Kobayashi
Jun Kunisawa
author_sort Koji Hosomi
collection DOAJ
description Abstract Background The human gut harbors a diverse microbiota that is crucial for maintaining health but also contributes to several diseases. Understanding how microbial communities are assembled and maintained is critical for advancing gut health. Results We identified a unique interaction between the pathobiont Fusobacterium varium and the symbiont Faecalibacterium prausnitzii, both members of the gut microbial community; their interaction is driven by metabolites and direct cell-to-cell contact. Growth of F. varium was inhibited in the presence of F. prausnitzii because of a decrease in pH and an increase in β-hydroxybutyric acid. Conversely, the growth of F. prausnitzii was promoted in the presence of F. varium, likely via direct contact. Conclusions These findings highlight the importance of metabolite-driven interactions and direct contact in shaping gut microbial communities and emphasize the potential of interactions between F. prausnitzii and F. varium in influencing gut health. Video Abstract
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institution Kabale University
issn 2049-2618
language English
publishDate 2025-07-01
publisher BMC
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series Microbiome
spelling doaj-art-d9e355d39a534480b4f9dcff6bc2a0392025-08-20T03:46:15ZengBMCMicrobiome2049-26182025-07-0113111210.1186/s40168-025-02168-wMetabolite-mediated interactions and direct contact between Fusobacterium varium and Faecalibacterium prausnitziiKoji Hosomi0Satoko Maruyama1Tsubasa Matsuoka2Mari Furuta3Yoko Tojima4Keita Uchiyama5Makiko Morita6Hitoshi Kawashima7Toshiki Kobayashi8Jun Kunisawa9Graduate School of Veterinary Science, Osaka Metropolitan UniversityLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionLaboratory of Vaccine Materials, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and NutritionAbstract Background The human gut harbors a diverse microbiota that is crucial for maintaining health but also contributes to several diseases. Understanding how microbial communities are assembled and maintained is critical for advancing gut health. Results We identified a unique interaction between the pathobiont Fusobacterium varium and the symbiont Faecalibacterium prausnitzii, both members of the gut microbial community; their interaction is driven by metabolites and direct cell-to-cell contact. Growth of F. varium was inhibited in the presence of F. prausnitzii because of a decrease in pH and an increase in β-hydroxybutyric acid. Conversely, the growth of F. prausnitzii was promoted in the presence of F. varium, likely via direct contact. Conclusions These findings highlight the importance of metabolite-driven interactions and direct contact in shaping gut microbial communities and emphasize the potential of interactions between F. prausnitzii and F. varium in influencing gut health. Video Abstracthttps://doi.org/10.1186/s40168-025-02168-wMicrobial interactionGut ecosystemPathobiontSymbiontFusobacteriumFaecalibacterium
spellingShingle Koji Hosomi
Satoko Maruyama
Tsubasa Matsuoka
Mari Furuta
Yoko Tojima
Keita Uchiyama
Makiko Morita
Hitoshi Kawashima
Toshiki Kobayashi
Jun Kunisawa
Metabolite-mediated interactions and direct contact between Fusobacterium varium and Faecalibacterium prausnitzii
Microbiome
Microbial interaction
Gut ecosystem
Pathobiont
Symbiont
Fusobacterium
Faecalibacterium
title Metabolite-mediated interactions and direct contact between Fusobacterium varium and Faecalibacterium prausnitzii
title_full Metabolite-mediated interactions and direct contact between Fusobacterium varium and Faecalibacterium prausnitzii
title_fullStr Metabolite-mediated interactions and direct contact between Fusobacterium varium and Faecalibacterium prausnitzii
title_full_unstemmed Metabolite-mediated interactions and direct contact between Fusobacterium varium and Faecalibacterium prausnitzii
title_short Metabolite-mediated interactions and direct contact between Fusobacterium varium and Faecalibacterium prausnitzii
title_sort metabolite mediated interactions and direct contact between fusobacterium varium and faecalibacterium prausnitzii
topic Microbial interaction
Gut ecosystem
Pathobiont
Symbiont
Fusobacterium
Faecalibacterium
url https://doi.org/10.1186/s40168-025-02168-w
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