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© Research
Project

Call Emulate 2020 – Mucibiome Impact of the colon mucus layer colonized by microbiota on the colonic epithelium mechanics under strech and on the pathogenesis of Entamoeba histolytica

Scientific Fields
Diseases
Organisms
Applications
Technique
Starting Date
13
Jan 2020
Status
Ongoing
Members
5
Structures
3
Instituts
1

About

In the human colon, mucus protects the underlying epithelium from pathogens. During infection, pathogens and resident microbiota compete for nutritional metabolites and therefore changes may alter the equilibrium in the colon ecosystem contributing to the susceptibility to infection. Around 50–60 % of the population in developing countries might be harboring E. histolytica in the outer mucus layer in an asymptomatic manner. Only ∼20% of the cases develop intestinal amoebiasis and thus under conditions not fully understood. E. histolytica overcomes the protective mucus layer using a combination of mucinase/glycosidase and cysteine proteases. Actually, publications of study on the field and in vitro suggest that the outcome of amoebiasis may be influenced by the composition of the gut microbiome.

– In this project, we aim at studying the impact of the mucus colonised with different commensal bacteria (in collaboration with H. Tun) on the mechanic of the epithelium and on E. histolytica behaviour using human organoid-derived colonic epithelial cells (in collaboration with G. Nigro) cultured in an organ-on-a-chip microfluidic device (in collaboration with the microfluidics plateform. S. Gobaa and H. Mary).
– By live imaging and quantitative image we will measure the stress maps within the tissue using an integrated framework to analyze cell mechanics and we will qualify E. histolytica behavior.