Objective
Many gram-negative bacterial pathogens, including the intracellular human pathogen Shigella flexneri, use a dedicated secretion system, termed type III secretion (TTS) system, to inject bacterial proteins directly from the bacterium, across the host plasma membrane, into the host cell cytosol. The translocated bacterial effectors facilitate infection and virulence by manipulating host signalling pathways, including those regulating apoptosis, cytoskeletal rearrangements and cytokine production. Recently, a n umber of new effectors, named Osps (outer Shigella proteins), including OspB and OspC1, that are secreted by the TTS system of S. flexneri.
We hypothesize that OspB and OspC1 are secreted into the invaded host cell to subvert the host cell response to bacterial infection and facilitate the disease process. To test this hypothesis we aim to characterize the function of OspB and OspC1 by:
i. analysing the in vitro and in vivo phenotype of OspB and OspC1 deletion mutants,
ii. following the fate of OspB and Osp C1 in the host cell, and
iii. identifying cellular targets of OspB and OspC1.
These experiments will lead to a greater understanding of the subversive mechanisms used by S. flexneri and other gram-negative pathogens to manipulate the host and cause disease.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences microbiology bacteriology
- natural sciences biological sciences biochemistry biomolecules proteins
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2005-MOBILITY-5
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
PARIS
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.