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IMPRINT

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Cerrado

Immunological and Microbiota Priming of the Response to Infection

Humans acquire a complex community of intestinal microorganisms in early life (gut microbiota), which helps development of the immune system, and which may reduce risk of inflammatory disease. However, these complex microbiota-imm... ver más

20/03/2024

197K€

Presupuesto del proyecto: 197K€

Líder del proyecto

INSTITUT PASTEUR No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2024-03-20

MSCA-IF-2020: Individual Fellowships

I+D

Cerrada hace 4 años

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No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

196.71K€ | Lider

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Duración del proyecto: 35 meses Fecha Inicio: 2021-03-23
Fecha Fin: 2024-03-20

Líder del proyecto

INSTITUT PASTEUR No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 197K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Humans acquire a complex community of intestinal microorganisms in early life (gut microbiota), which helps development of the immune system, and which may reduce risk of inflammatory disease. However, these complex microbiota-immune interactions in early life are underexplored and their subsequent influence on susceptibility to infection remains unknown. The Eberl lab recently reported that a temporary intestinal inflammatory state, termed the ‘weaning reaction’, occurs in mice during a specific window in early life (2-4 weeks) in response to the rapid diversification of the gut microbiota. During weaning, the gut microbiota and its metabolites induce a sub-type of T regulatory cells in the intestine (RORγt+ Tregs) which mediate immune tolerance throughout life. Suppression of the microbiota-induced weaning reaction suppresses RORγt+ Tregs and heightens susceptibility to immunopathology such as allergy and colitis in adulthood. However, it is unknown how the weaning reaction influences the later susceptibility and response to infection. IMPRINT will investigate how the gut microbiota influences the immune system in early life to regulate the response to infection in adulthood. Using mice, this project will evaluate the impact of suppressing the weaning reaction on susceptibility to Citrobacter rodentium infection in adulthood. Next, Treg depletion models will be used to examine whether microbiota-induced Tregs during weaning influence susceptibility to C. rodentium infection in adulthood. Finally, metagenomics, metabolomics and add-back experiments will be performed to identify specific bacteria or metabolites that promote induction of Tregs during weaning and modulate subsequent susceptibility to C. rodentium infection. By combining my skills in metagenomics and metabolomics with the host lab’s expertise in intestinal immunology, IMPRINT poses potential to uncover insights into early-life microbiota-immune interactions and the pathogenesis of infectious disease.

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