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Mucosa-associated biohydrogenating microbes protect the simulated colon microbiome from stress associated with high concentrations of poly-unsaturated fat

(2017) ENVIRONMENTAL MICROBIOLOGY. 19(2). p.722-739
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Abstract
Polyunsaturated fatty acids (PUFAs) may affect colon microbiome homeostasis by exerting (specific) antimicrobial effects and/or interfering with mucosal biofilm formation at the gut mucosal interface. We used standardized batch incubations and the Mucosal-Simulator of the Human Microbial Intestinal Ecosystem (M-SHIME) to show the in vitro luminal and mucosal effects of the main PUFA in the Western diet, linoleic acid (LA). High concentrations of LA were found to decrease butyrate production and Faecalibacterium prausnitzii numbers dependent on LA biohydrogenation to vaccenic acid (VA) and stearic acid (SA). In faecal batch incubations, LA biohydrogenation and butyrate production were positively correlated and SA did not inhibit butyrate production. In the M-SHIME, addition of a mucosal environment stimulated biohydrogenation to SA and protected F. prausnitzii from inhibition by LA. This was probably due to the preference of two biohydrogenating genera Roseburia and Pseudobutyrivibrio for the mucosal niche. Co-culture batch incubations using Roseburia hominis and F. prausnitzii validated these observations. Correlations networks further uncovered the central role of Roseburia and Pseudobutyrivibrio in protecting luminal and mucosal SHIME microbiota from LA-induced stress. Our results confirm how cross-shielding interactions provide resilience to the microbiome and demonstrate the importance of biohydrogenating, mucosal bacteria for recovery from LA stress.
Keywords
CONJUGATED LINOLEIC-ACID, INFLAMMATORY-BOWEL-DISEASE, FAECALIBACTERIUM-PRAUSNITZII, RIBOSOMAL-RNA, GASTROINTESTINAL-TRACT, BACTERIAL COMMUNITY, GUT MICROBIOTA, VACCENIC ACID, OAT GRAIN, METABOLISM

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Citation

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Chicago
De Weirdt, Rosemarie, Emma Hernandez Sanabria, Veerle Fievez, Eva Mees, Annelies Geirnaert, Florence Van Herreweghen, Ramiro Vilchez Vargas, et al. 2017. “Mucosa-associated Biohydrogenating Microbes Protect the Simulated Colon Microbiome from Stress Associated with High Concentrations of Poly-unsaturated Fat.” Environmental Microbiology 19 (2): 722–739.
APA
De Weirdt, R., Hernandez Sanabria, E., Fievez, V., Mees, E., Geirnaert, A., Van Herreweghen, F., Vilchez Vargas, R., et al. (2017). Mucosa-associated biohydrogenating microbes protect the simulated colon microbiome from stress associated with high concentrations of poly-unsaturated fat. ENVIRONMENTAL MICROBIOLOGY, 19(2), 722–739.
Vancouver
1.
De Weirdt R, Hernandez Sanabria E, Fievez V, Mees E, Geirnaert A, Van Herreweghen F, et al. Mucosa-associated biohydrogenating microbes protect the simulated colon microbiome from stress associated with high concentrations of poly-unsaturated fat. ENVIRONMENTAL MICROBIOLOGY. 2017;19(2):722–39.
MLA
De Weirdt, Rosemarie, Emma Hernandez Sanabria, Veerle Fievez, et al. “Mucosa-associated Biohydrogenating Microbes Protect the Simulated Colon Microbiome from Stress Associated with High Concentrations of Poly-unsaturated Fat.” ENVIRONMENTAL MICROBIOLOGY 19.2 (2017): 722–739. Print.
@article{8521106,
  abstract     = {Polyunsaturated fatty acids (PUFAs) may affect colon microbiome homeostasis by exerting (specific) antimicrobial effects and/or interfering with mucosal biofilm formation at the gut mucosal interface. We used standardized batch incubations and the Mucosal-Simulator of the Human Microbial Intestinal Ecosystem (M-SHIME) to show the in vitro luminal and mucosal effects of the main PUFA in the Western diet, linoleic acid (LA). High concentrations of LA were found to decrease butyrate production and Faecalibacterium prausnitzii numbers dependent on LA biohydrogenation to vaccenic acid (VA) and stearic acid (SA). In faecal batch incubations, LA biohydrogenation and butyrate production were positively correlated and SA did not inhibit butyrate production. In the M-SHIME, addition of a mucosal environment stimulated biohydrogenation to SA and protected F. prausnitzii from inhibition by LA. This was probably due to the preference of two biohydrogenating genera Roseburia and Pseudobutyrivibrio for the mucosal niche. Co-culture batch incubations using Roseburia hominis and F. prausnitzii validated these observations. Correlations networks further uncovered the central role of Roseburia and Pseudobutyrivibrio in protecting luminal and mucosal SHIME microbiota from LA-induced stress. Our results confirm how cross-shielding interactions provide resilience to the microbiome and demonstrate the importance of biohydrogenating, mucosal bacteria for recovery from LA stress.},
  author       = {De Weirdt, Rosemarie and Hernandez Sanabria, Emma and Fievez, Veerle and Mees, Eva and Geirnaert, Annelies and Van Herreweghen, Florence and Vilchez Vargas, Ramiro and Van den Abbeele, Pieter and Jauregui, Ruy and Pieper, Dietmar H and Vlaeminck, Bruno and Van de Wiele, Tom},
  issn         = {1462-2912},
  journal      = {ENVIRONMENTAL MICROBIOLOGY},
  keyword      = {CONJUGATED LINOLEIC-ACID,INFLAMMATORY-BOWEL-DISEASE,FAECALIBACTERIUM-PRAUSNITZII,RIBOSOMAL-RNA,GASTROINTESTINAL-TRACT,BACTERIAL COMMUNITY,GUT MICROBIOTA,VACCENIC ACID,OAT GRAIN,METABOLISM},
  language     = {eng},
  number       = {2},
  pages        = {722--739},
  title        = {Mucosa-associated biohydrogenating microbes protect the simulated colon microbiome from stress associated with high concentrations of poly-unsaturated fat},
  url          = {http://dx.doi.org/10.1111/1462-2920.13622},
  volume       = {19},
  year         = {2017},
}

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