Inulin-grown Faecalibacterium prausnitzii cross-feeds fructose to the human intestinal epithelium

Raphael R. Fagundes, Arno R. Bourgonje, Ali Saeed, Arnau Vich Vila, Niels Plomp, Tjasso Blokzijl, Mehdi Sadaghian Sadabad, Julius Z. H. von Martels, Sander S. van Leeuwen, Rinse K. Weersma, Gerard Dijkstra, Hermie J. M. Harmsen, Klaas Nico Faber*

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

12 Citaten (Scopus)
76 Downloads (Pure)


Many chronic diseases are associated with decreased abundance of the gut commensal Faecalibacterium prausnitzii. This strict anaerobe can grow on dietary fibers, e.g., prebiotics, and produce high levels of butyrate, often associated to epithelial metabolism and health. However, little is known about other F. prausnitzii metabolites that may affect the colonic epithelium. Here, we analyzed prebiotic cross-feeding between F. prausnitzii and intestinal epithelial (Caco-2) cells in a "Human-oxygen Bacteria-anaerobic" coculture system. Inulin-grown F. prausnitzii enhanced Caco-2 viability and suppressed inflammation- and oxidative stress-marker expression. Inulin-grown F. prausnitzii produced excess butyrate and fructose, but only fructose efficiently promoted Caco-2 growth. Finally, fecal microbial taxonomy analysis (16S sequencing) from healthy volunteers (n = 255) showed the strongest positive correlation for F. prausnitzii abundance and stool fructose levels. We show that fructose, produced and accumulated in a fiber-rich colonic environment, supports colonic epithelium growth, while butyrate does not.

Originele taal-2English
Aantal pagina's18
TijdschriftGut Microbes
Nummer van het tijdschrift1
StatusPublished - 19-nov.-2021

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