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MITOvTOXO SIGNED

Understanding how mitochondria compete with Toxoplasma for nutrients to defend the host cell

Total Cost €

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EC-Contrib. €

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Partnership

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Project "MITOvTOXO" data sheet

The following table provides information about the project.

Coordinator
MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV 

Organization address
address: HOFGARTENSTRASSE 8
city: MUENCHEN
postcode: 80539
website: n.a.

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙500˙000 €
 EC max contribution 1˙500˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-STG
 Funding Scheme ERC-STG
 Starting year 2020
 Duration (year-month-day) from 2020-06-01   to  2025-05-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV DE (MUENCHEN) coordinator 1˙500˙000.00

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 Project objective

Once a pathogen has eluded immune defences to establish a replicative niche in the cytosol, it requires nutrients to grow—the same nutrients that host organelles need for their biogenesis and to perform cellular metabolic processes. The microbe must therefore compete with organelles for these nutrients.. This organelle-microbe competition for metabolites is a fundamental, but little understood aspect of the host–pathogen interaction. I recently defined one example of this competition, between mitochondria and the human parasite Toxoplasma gondii. During infection, Toxoplasma exploits host lipophagy to gain access to cellular fatty acids essential for its growth. To counter this, host mitochondria fuse to enhance fatty acid uptake, limiting Toxoplasma access to a key host resource and thus restricting its growth. This work shows that mitochondria—essentially domesticated parasites—metabolically defend the cell during infection, and opens several key questions that I will address in this proposal, including: a) by what mechanism do mitochondria enhance fatty acid oxidation to defend the cell against fatty acid siphoning by microbes?; b) can mitochondrial fatty acid oxidation be exploited to restrict microbial growth in vivo?; and c) do mitochondria play a broader role in cellular defence by sequestering other essential metabolites from microbes? The answers to these questions will lead to a deeper understanding of the role of mitochondria in the cellular response to microbes, and begin to address our long-term goal of understanding how human metabolism influences the progression of infectious disease. The innovative approaches I describe here are broadly applicable to dissecting the metabolic interactions between other organelles and diverse infectious agents.

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The information about "MITOVTOXO" are provided by the European Opendata Portal: CORDIS opendata.

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