Objective
Pseudomonas aeruginosa lung infection is the major cause of morbidity and mortality in Cystic Fibrosis (CF) patients. During chronic colonisation the persisting pathogen adapts to the CF niche due to the disease-specific environmental conditions of the hos t, such as anaerobic mucus layer and the pressure of innate immune defence system. Under those conditions P. aeruginosa evolves specific virulence mechanisms to evade the host defence and increases its fitness/survival. P. aeruginosa acquires adaptive muta tions becoming mucoid, resistant to antibiotics and may carry many others characters, which distinguish the late isolates strains from the initial colonising bacterium. Currently the onset of bacterial colonisation and changes in different phases of infect ion (from acute to chronic) are not completely understood. Although the process of bacterial airway colonisation has been investigated, its impact is restricted to a part of P. aeruginosa strains and insufficient to explain the pathogenicity. Here, we prop ose to use a signature-tagged transposen mutagenesis together with an analysis of P. aeruginosa genome sequence and differential gene expression to identify and characterise new genes involved in the chronic lung infection. A library of P. aeruginosa mutan ts will be constructed by random transposen insertional mutagenesis system and accomplished by tagging each mutant with a unique short DNA sequence so that it can subsequently be identified within a pool of mutants by DNA-DNA hybridization analysis. When a pplied to a chronic murine infection model for CF, mutants with an increased fitness/survival will be recovered from the lung after one week of infection and revealed by identification of the tags. The genomic DNA sequence flanking the transposen will allo w us to assign fimctions to inactivated genes and DNA array technology allow to characterise interaction with other genes. Further investigation on these candidate genes will be carried out #
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.
- social sciences sociology demography mortality
- natural sciences biological sciences genetics DNA
- medical and health sciences basic medicine physiology pathophysiology
- natural sciences biological sciences genetics mutation
- medical and health sciences basic medicine pharmacology and pharmacy pharmaceutical drugs antibiotics
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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.
FP6-2002-MOBILITY-11
See other projects for this call
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
MILANO
Italy
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.