Project description
How food nanoparticles could affect our liver
Every day, people unknowingly consume nanoparticles, tiny particles added to food to preserve it and kill bacteria. What they do to the bacteria in our gut remains largely unknown. Of particular concern is their effect on bile acid metabolism, which influences liver health and could worsen chronic fatty liver disease. The ERC-funded nanoBASH project aims to investigate how food nanoparticles interact with the microbiota–bile acid–liver axis. By combining detailed mechanistic studies with human-relevant testing, the project aims to reveal potential drivers of fatty liver disease and provide tools for precision toxicology and preventive strategies to safeguard health.
Objective
Daily ingestion of nanoparticles (NPs) is inevitable due to their wide use by the food sector, some as bactericidal agents. But their antimicrobial effects towards our gut bacteria remain largely unknown. While some studies investigated their impact on microbial composition, very few explored microbial functional changes and significance for host health. It is alarming that our gut microbiome, unanimously recognized as central in many diseases, is currently overlooked in nanotoxicology.
Among key roles of microbiota, we and others underlined that secondary bile acids (BA), generated by the gut bacteria, regulate inflammation in the liver by interacting with host receptors. We showed in mice that altered BA pool in the portal blood, connecting the gut to the liver, exacerbated chronic fatty liver disease, an increasingly prevalent disorder representing a major unmet medical need.
Assembling the two puzzle pieces, I was the first to explore the impact of some food NPs on fatty liver diseases via the microbiota-BA axis in mice. But BA metabolism differs between species stressing the need to rely on human data. The current knowledge gaps on microbial BA metabolism, the inaccessibility of the portal blood and the challenges in testing NPs ex vivo hamper such study in fatty liver disease patients. Drawing on promising preliminary data and using human-based methodologies, I aim to timely elucidate if microbial BA dysmetabolism and resulting altered portal BA pool drives fatty liver diseases and if ingestion of food NPs contribute to fatty liver diseases via this microbiota-BA axis.
I anticipate that the new approach methodologies and mechanistic knowledge derived from this proposal will offer the scientific community a toolbox towards ‘precision toxicology’ to assess potential toxicity of food NPs (and other food chemicals) on microbiota-BA-liver axis in humans, supporting the necessary implementation of preventive actions at both the individual and population level.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences microbiology bacteriology
- engineering and technology nanotechnology nano-materials
- medical and health sciences basic medicine toxicology
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-ERC - HORIZON ERC Grants
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2025-STG
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1348 LOUVAIN LA NEUVE
Belgium
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