Objective
Mental retardation (MR) imposes a major medical and social-economical problem in our society. It is defined as a global reduction in cognitive and intellectual abilities, which manifests before the age of 18, and is estimated to affect 1-3% of the population. The causes of MR are extremely heterogeneous and include non-genetic factors as well as genetic changes that include chromosomal abnormalities and single-gene mutations. Great progress has been made over recent years towards the identification of MR-related genes, resulting in a list of approximately 400 genes. A largely remaining challenge, however, is to connect the genetic causes of MR to processes that establish and/or modify neuronal circuit function. Because learning deficit is a constant feature of those patients, it is tempting to attribute some of MR traits to alterations in synaptic functions. This research proposal is geared towards unravelling the molecular and cellular mechanisms underlying MR, focusing on the synaptic deficits of the disease. First, I will test the hypothesis that at the cellular level, MR proteins often impinge on synaptic function, and more specifically affect glutamate receptors expression and/or trafficking. Second, I will investigate in detail how genetic deficits found in MR lead to synaptic dysfunction in vivo. Several of the currently identified genes associated with MR code for regulators and effectors of the Rho GTPase family. These findings have led to the hypothesis that abnormal Rho GTPase signaling may be a prominent cause of MR. However, how alterations in Rho signaling result in changes in neuronal connectivity and/or plasticity that give rise to MR remain elusive. To gain insight into these pathways I will use a combination of molecular biology, optical imaging and physiology together with viral-mediated gene transfer methods to manipulate the molecular composition of single neurons in a spatial and temporal controlled manner.
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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- medical and health sciencesmedical biotechnologygenetic engineeringgene therapy
- natural sciencesbiological sciencesbiochemistrybiomoleculesproteins
- natural sciencesbiological sciencesgeneticsmutation
- medical and health sciencesbasic medicinephysiology
- natural sciencesbiological sciencesmolecular biology
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback.
You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
Call for proposal
FP7-PEOPLE-2010-RG
See other projects for this call
Funding Scheme
MC-IRG - International Re-integration Grants (IRG)Coordinator
6525 XZ Nijmegen
Netherlands