Objective
The immunoglobulin super family adhesion molecule NCAM is implicated in cell migration, axonal outgrowth, and synaptic plasticity under normal or pathological situations. Recently, NCAM was demonstrated to physically interact with the growth factor GDNF a soluble factor also active in modulating axonal migration.
In my research project, I will examine: the mechanisms by which GDNF interacts with NCAM and how PSA, the polysialic posttranslational modification of NCAM, is able to regulate NCAM activity. For this purpose, I will develop two approaches:
1. I will observe the localization, trafficking and recycling of NCAM isoforms, NCAM140 and NCAM180, during neuronal development and cell migration and I will investigate the effect of GDNF on NCAM movements and relocalization. I will observe the two NCAM isoforms, NCAM140 and NCAM180 simultaneously and test whether their dynamic is specific, and if they respond differently to GDNF.
2. I will also observe whether PSA is capable of regulating the NCAM dynamics, and I will study the effects of this posttranslational modification on the binding of NCAM to several known interacting proteins. I will also focused on the lipid raft and determine whereas these microdomains enriched in potent effectors of signal transduction are essential for the physical interaction of NCAM to GFR and GDNF and therefore for the signalling initiated by this interaction.
For this work, I will use culture of dissociated neurons, from NCAM- or PSA-deficient or GFP-NCAM mice. Cell imaging technologies such as time-lapse and FRET system will be used to monitor the proteins in living neurons. In addition biochemical approaches will help to identify the PSA-dependent NCAM-interacting proteins. A long-term interest will be to understand how these molecules act in neurodegenerative diseases as well as in the regeneration of injured neuronal tissues and whether they may constitute therapeutic targets.
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.
- engineering and technology environmental engineering waste management waste treatment processes recycling
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences biological sciences biochemistry biomolecules lipids
- natural sciences biological sciences biochemistry biomolecules carbohydrates
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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-12
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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.
IRG - Marie Curie actions-International re-integration grants
Coordinator
PARIS
France
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