RUPTEFFECTS

Revealing the mechanism of host membrane rupture by invasive pathogens and its role in triggering the immune response

Coordinatore	INSTITUT PASTEUR    more Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie.
Nazionalità Coordinatore	France [FR]
Totale costo	1˙488˙512 €
EC contributo	1˙488˙512 €
Programma	FP7-IDEAS-ERC Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	ERC-2010-StG_20091118
Funding Scheme	ERC-SG
Anno di inizio	2011
Periodo (anno-mese-giorno)	2011-03-01   -   2016-02-29

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	INSTITUT PASTEUR  Organization address address: RUE DU DOCTEUR ROUX 25-28 city: PARIS CEDEX 15 postcode: 75724 contact info Titolo: Dr. Nome: Jost Heiko Cognome: Enninga Email: send email Telefono: +33 1 44389413 Fax: +33 1 40613583	FR (PARIS CEDEX 15)	hostInstitution	1˙488˙512.00
2	INSTITUT PASTEUR  Organization address address: RUE DU DOCTEUR ROUX 25-28 city: PARIS CEDEX 15 postcode: 75724 contact info Titolo: Ms. Nome: Marie-Laure Cognome: Rosso Email: send email Telefono: 33144389526 Fax: +33 1 40613940	FR (PARIS CEDEX 15)	hostInstitution	1˙488˙512.00

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 Obiettivo del progetto (Objective)

'Pathogens have been evolving with their hosts for millions of years adopting tailored strategies to propagate within the host body and evading the host immune response. It is crucial to understand the underlying strategies employed by pathogens on the cellular and molecular level in order to develop novel weapons against them. On the cellular level, host-pathogen interactions are generally very dynamic and tightly regulated. Therefore, it has been difficult to establish methodologies that can capture this cross-talk. To overcome these hurdles, we have been developing novel approaches to monitor the dynamic host-pathogen interactions. Our laboratory is taking advantage of fluorescent reporter molecules, which we use and/or develop to obtain information on molecular processes in single living cells. The key question of host cell invasion to be addressed will be (i) how do entero-pathogenic bacteria invade cells and (ii) how do the latter sense the incoming pathogens. First, we will use a novel assay to understand how an individual invading bacterium, such as Shigella hijacks host cellular machineries and ruptures the vacuolar membranes upon cellular uptake to escape into the host cytoplasm. Secondly, we will reveal how the change of intracellular localization of invasive pathogens impacts on the induced host immune response. Concerning this, we have established an assay to track the host gene expression response quantitatively (from any promoter of interest) during pathogen invasion in single cells with a timely resolution of seconds to minutes. Together, this will allow us to precisely understand the molecular mechanisms how invasive bacteria interfere with eukaryotic cellular trafficking and signal transduction pathways to alter host immune responses. Thus, beyond providing novel targets for antimicrobial therapy, our study will pave the way to understand fundamental cellular processes.'