CYTOCUT

Cytokinesis’ final cut: mechanics of abscission and ESCRT-III mediated membrane fission

Coordinatore	UNIVERSITE DE GENEVE    more  Organization address address: Rue du General Dufour 24 city: GENEVE postcode: 1211 contact info Titolo: Dr. Nome: Aurélien Cognome: Roux Email: send email Telefono: 41223793532 Fax: 41223796470
Nazionalità Coordinatore	Switzerland [CH]
Totale costo	184˙709 €
EC contributo	184˙709 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2011-IEF
Funding Scheme	MC-IEF
Anno di inizio	2012
Periodo (anno-mese-giorno)	2012-07-01   -   2014-06-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	UNIVERSITE DE GENEVE  Organization address address: Rue du General Dufour 24 city: GENEVE postcode: 1211 contact info Titolo: Dr. Nome: Aurélien Cognome: Roux Email: send email Telefono: 41223793532 Fax: 41223796470	CH (GENEVE)	coordinator	184˙709.40

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 Obiettivo del progetto (Objective)

'Abscission is the ultimate event of cytokinesis during which the intracellular bridge connecting two daughter cells is irreversibly cleaved. Reports show that a complex called ESCRT-III is involved in plasma membrane fission during abscission. The goal of this project is to understand how membrane mechanics can influence the fate of cytokinesis both at the molecular and at the cellular levels.

First, I will address the mechanism of ESCRT-III mediated membrane fission by using in vitro assays mimicking abscission geometry. I will study protein and lipid composition necessary for fission, as well as its dynamics and mechanical requirements by controlling membrane tension.

For the in vivo study, I will build a double pipette setup whose goal is to hold dividing cells, allowing to precisely visualize abscission in real time. Abscission mechanism will be addressed by controlling and measuring mechanical stress applied on cells in cytokinesis in combination with RNAi knock-down of ESCRT-III proteins.

By comparing in vivo and in vitro results, the ultimate goal will be to uncover the relation between abscission, ESCRT-III mediated membrane fission and cell mechanics.'