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Exploring how bat microbiome and their natural antibodies modulate tick immunity and pathogen fitness

Descrizione del progetto

Immunità intestinale nei pipistrelli

Le malattie zoonotiche, che vengono trasmesse dagli animali agli esseri umani, rappresentano una minaccia crescente per la salute globale e i pipistrelli sono noti serbatoi di tali agenti patogeni. Con il sostegno del programma di azioni Marie Skłodowska-Curie, il progetto BATX-SIA si propone di studiare il fenomeno definito attivazione immunitaria interspecie e in particolare gli anticorpi naturali prodotti dal microbiota intestinale dei pipistrelli, verificando l’ipotesi secondo cui tali anticorpi mirati contro specifici glicani potrebbero influenzare le risposte immunitarie sia negli organismi ospitanti che nei vettori. I ricercatori mapperanno le interazioni del microbioma e identificheranno i percorsi immunitari e i geni che portano a una riduzione della fitness dei patogeni nei vettori, fornendo conoscenze che dispongono in ultima analisi del potenziale di abilitare nuove strategie per prevenire futuri focolai zoonotici.

Obiettivo

Bats and their ectoparasites can be linked to various zoonotic diseases, including viruses and bacteria such as Bartonella spp., posing considerable health risks. However, the role of natural antibodies (NAbs) induced by gut bacteria (glycan-immunogenic bacteria: gIB) remains unexplored. Although various NAbs have been identified across different species with known roles in defending against several vector-borne pathogens (VBPs), their ability to alter vector microbiota, modulate the vector's immune response, and impact pathogen transmission is uncharted territory. Additionally, modulating the vector microbiome could influence the vector's immune system by activating signalling pathways. In this project, I’ll test the hypothesis that glycan-specific NAbs (gsNAbs), triggered by bacteria in the bat gut microbiome, can trigger immune activation in both the host and the vector (cross-species immune activation X-SIA), potentially reducing the fitness of vector-borne pathogens (VBPs) in the vector, with a focus on Bartonella spp. Leveraging data from field studies, along with profiles of gsNAbs from bats and the microbiomes of both the host and ticks, I’ll perform a comprehensive data analysis to identify which bacteria from the host microbiome trigger the production of gsNAbs that modulate vector microbiota and affect VBPs fitness. Additionally, through experimental protocols on ticks, I aim to reveal how gsNAbs produced by gIB of the host can trigger X-SIA and identify genes that modulate the immune response in relation to pathogen fitness. This project goes beyond the current state-of-the-art by providing novel insights into how NAbs triggered by the gIB from the bat gut microbiome, modulate the vector microbiome and the vector’s immune response influencing pathogen fitness. By advancing our understanding of X-SIA and the impact on VBPs, we contribute to global and European public health priorities, biodiversity conservation, and disease prevention.

Campo scientifico (EuroSciVoc)

Parole chiave

Programma(i)

Argomento(i)

Meccanismo di finanziamento

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Invito a presentare proposte

(si apre in una nuova finestra) HORIZON-MSCA-2024-PF-01

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Coordinatore

INSTITUT NATIONAL DE RECHERCHE POUR L'AGRICULTURE, L'ALIMENTATION ET L'ENVIRONNEMENT
Contributo netto dell'UE
€ 211 977,99
Indirizzo
147 RUE DE L'UNIVERSITE
75007 Paris
Francia
Regione
Ile-de-France Ile-de-France Paris
Tipo di attività
Research Organisations
Collegamenti
Costo totale
Nessun dato

Partner (1)