Journal
FRONTIERS IN CELLULAR NEUROSCIENCE
Volume 8, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fncel.2014.00081
Keywords
autism; intellectual disability; Fragile X; CYFIP family proteins; WAVE complex; F-actin; dendritic spines
Categories
Funding
- INSERM
- CNRS LIA NEOGENEX
- Agence Nationale de la Recherche [ANR-11-LABX-0028-01, SVSE4-2012, SVSE8-2012]
- ARC (Fondation ARC pour la Recherche Sur le Cancer) fellowship
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Intellectual disability (ID) and autism spectrum disorders (ASDs) have in common alterations in some brain circuits and brain abnormalities, such as synaptic transmission and dendritic spines morphology. Recent studies have indicated a differential expression for specific categories of genes as a cause for both types of disease, while an increasing number of genes is recognized to produce both disorders. An example is the Fragile X mental retardation gene 1 (FMR1), whose silencing causes the Fragile X syndrome, the most common form of ID and autism, also characterized by physical hallmarks. Fragile X mental retardation protein (FMRP), the protein encoded by FMR1, is an RNA-binding protein with an important role in translational control. Among the interactors of FMRP CYFIP1/2 (cytoplasmic FMRP interacting protein) proteins are good candidates for ID and autism, on the bases of their genetic implication and functional properties, even if the precise functional significance of the CYFIP/FMRP interaction is not understood yet. CYFIP1 and CYFIP2 represent a link between Rac1, the WAVE (WAS protein family member) complex and FMRP favoring the cross talk between actin polymerization and translational control.
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