GUTPOLAR SIGNED
Membrane trafficking as a link between cell polarity and intestinal absorptive function: from C. elegans to mammalian miniguts
Total Cost €
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Project "GUTPOLAR" data sheet
The following table provides information about the project.
| Coordinator |
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Organization address contact info |
| Coordinator Country | France [FR] |
| Total cost | 196˙707 € |
| EC max contribution | 196˙707 € (100%) |
| Programme |
1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility) |
| Code Call | H2020-MSCA-IF-2018 |
| Funding Scheme | MSCA-IF-EF-RI |
| Starting year | 2019 |
| Duration (year-month-day) | from 2019-05-06 to 2021-05-05 |
Partnership
Take a look of project's partnership.
| # | ||||
|---|---|---|---|---|
| 1 | CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS | FR (PARIS) | coordinator | 196˙707.00 |
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Project objective
The GUTPOLAR project aims at sustainably reintegrating an Experience Researcher (ER) who will acquire the necessary knowledge and skills to reinforce European research on rare malabsorption diseases. Food absorption relies on the strong polarity of intestinal epithelial cells and the array of microvilli forming a brush border (BB) at their luminal (apical) pole. Some rare genetic malabsorption disorders, characterized by mispolarized PAR polarity modules and BB structural proteins, are caused by mutations in genes coding for membrane traffic factors (i.e. Myo5B in microvillus inclusion disease/MVID). Despite this functional link, little is known about the genetic, physical and functional interactions between membrane traffic, polarity and BB components in vivo and how they control intestinal absorption. The ER uncovered a new role of the V0 sector of the V-ATPase, a complex that controls membrane traffic through organelle acidification, in both polarity and BB components apical polarity maintenance in C. elegans intestine. Most interestingly, V0-ATPase depletion in C. elegans recapitulates the cellular phenotypes observed in patients with MVID, making this complex a very exciting candidate which mechanism, genetic partners and mammalian function need to be characterized. To this end, the ER will first use genetics and super-resolution imaging to study the trafficking routes and the molecular mechanisms controlled by the V0-ATPase in vivo in C. elegans intestine. Then, he will implement mouse intestinal organoids (thanks to a secondment in H. Farin’s lab, Frankfurt, Germany) and use this model to study the conservation of these mechanisms in mammals. Overall, the GUTPOLAR action will allow to describe evolutionary conserved pathways of polarity maintenance and identify some of the mechanisms leading to absorption disorders that may provide the medical community with new therapeutic targets.
Publications
| year | authors and title | journal | last update |
|---|---|---|---|
| 2019 |
Aurélien Bidaud-Meynard, Ophélie Nicolle, Markus Heck, Yann Le Cunff, Grégoire Michaux A V0-ATPase-dependent apical trafficking pathway maintains the polarity of the intestinal absorptive membrane published pages: dev174508, ISSN: 0950-1991, DOI: 10.1242/dev.174508 |
Development 146/11 | 2019-07-22 |
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