Searching for the bacterial effector: The example of the multi-skilled commensal bacterium Faecalibacterium prausnitzii

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Martín, Rebeca | Bermúdez Humarán, Luis G. | Langella, Philippe

Edité par CCSD ; Frontiers Media -

THIS ARTICLE IS PART OF THE RESEARCH TOPIC Next- Generation Probiotics: From Commensal Bacteria to Novel Drugs and Food Supplements Perspective article. International audience. Faecalibacterium prausnitzii represents approximately 5% of the total fecal microbiota in healthy adults being one of the most abundant bacterium in the human intestinal microbiota of healthy adults. Furthermore, this bacterium has been proposed to be a sensor and a major actor of the human intestinal health because of its importance in the gut ecosystem. In this context, F. prausnitzii population levels have been found to be reduced in patients suffering from several syndromes and diseases such as inflammatory bowel diseases. These diseases are characterized by a breakage of the intestinal homeostasis called dysbiosis and the use of F. prausnitzii as a next generation probiotic (also called live biotherapeutics) has been proposed as a natural tool to restore such dysbiosis within the gut. Nevertheless, despite the potential importance of this bacterium in human health, little is known about its main effectors underlying its beneficial effects. In this perspective note, we aim to present the actual state in the research about F. prausnitzii effectors and the future milestones in this field.

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