MAPKMOOD

A new logic to control signalling pathways in the mouse brain: The role of MAPK in emotional behavior

Coordinatore	HELMHOLTZ ZENTRUM MUENCHEN DEUTSCHES FORSCHUNGSZENTRUM FUER GESUNDHEIT UND UMWELT GMBH    more  Organization address address: Ingolstaedter Landstrasse 1 city: MUENCHEN postcode: 85764 contact info Titolo: Dr. Nome: Jürgen Cognome: Ertel Email: send email Telefono: -6249 Fax: -7093
Nazionalità Coordinatore	Germany [DE]
Totale costo	162˙161 €
EC contributo	162˙161 €
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-2009-IEF
Funding Scheme	MC-IEF
Anno di inizio	2011
Periodo (anno-mese-giorno)	2011-01-15   -   2013-01-14

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	HELMHOLTZ ZENTRUM MUENCHEN DEUTSCHES FORSCHUNGSZENTRUM FUER GESUNDHEIT UND UMWELT GMBH  Organization address address: Ingolstaedter Landstrasse 1 city: MUENCHEN postcode: 85764 contact info Titolo: Dr. Nome: Jürgen Cognome: Ertel Email: send email Telefono: -6249 Fax: -7093	DE (MUENCHEN)	coordinator	162˙161.00

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 Obiettivo del progetto (Objective)

'Mood disorders represent some of the most common and proliferating health problems worldwide. The present knowledge on the molecular regulation and intracellular signalling mechanisms of anxiety and depression behaviour is incomplete. A better understanding and the development of novel, improved therapeutic treatment would fill a medical need. To study the function of signal transduction pathways in the brain requires control of the activity of a signalling protein in a temporal manner in a selected cell type of the brain. Signalling processes undergo cycles of activation and repression, such that their manipulation into both directions is of experimental interest. This project will focus on the development and application of a new inducible and reversible switch to modulate the activity of signalling molecules at the protein level in the postnatal mouse brain, with the MAP Kinase (MAPK) pathway as a case study. This switch relies on the posttranslational activation of hyperactive or dominant negative protein kinase mutants fused with the ERT2 mutant estrogen receptor ligand binding domain. In mice the ERT2 technology is routinely applied to induce the activity of Cre recombinase but is not yet utilised in vivo to manipulate endogenous proteins. Here, B-Raf kinase provides an excellent starting point since the functionality of mutant B-Raf-ERT2 fusion proteins to activate in vitro MAPK signalling is known. By the use of a dominant negative or hyperactive B-Raf fusion protein the fusion protein technology will be for the first time applied to the inducible enhancement or repression of an endogenous signalling pathway in brain neurons. In these mice MAPK signalling can be manipulated in a cell type specific and temporal manner by a small molecule inducer. In particular, the hypothesis that a transient increase of MAPK signalling in glutamatergic neurons of the pubertal brain, results in increased anxiety and depression-like behavior of adult mice, will be tested.'