Objective Cell signaling is a complex system that coordinates cell actions in response to environmental inputs. Signaling pathways are often seen and investigated as on/off networks, but the reality of the intensities and spatio-temporal organization of these networks has been poorly integrated with the dynamics of cellular outputs in response to specific environmental inputs. In the OSS project we aim to approach this general problem by focusing on a specific cellular function, cell invasion (the hosts area of expertise). We propose to 1) use the formation of invadosomes, characteristic acto-adhesive structures important for cell invasion as a specific cellular function, to address these fundamental questions 2) and target the pleiotropic tyrosine kinase Src that has the ability to induce cell invasion globally by acting on cell adhesion, migration, contractility and invadosome dynamics independently of any environmental regulation, to investigate how a biological signal can be dynamically encoded into specific multifarious cellular outputs. Our hypothesis is that specific spatio-temporal patterns of Src activation could be the basis of its pleiotropicity. Thus, the first step of the OSS project will be to use Src biosensors to observe different patterns of Src activation and correlate them with the dynamics of Src-dependent cellular outputs (such as induction of invadosomes). Secondly, we will directly control spatio-temporal Src activity in live cells using optogenetics, a powerful and innovative approach that will allow us to mimic the observed patterns of Src activation and to create new patterns in order to explore dynamic equilibrium between Src signaling and its specific cellular outputs. This project is at the cross-road of signaling theory in biology, cell biology of acto-adhesive structures and biotechnology fields. The goal of the OSS project is to actively manipulate signals in space and time with the ultimate aim to control dynamic process of cell invasion. Fields of science natural sciencesbiological sciencesgeneticsnatural sciencesbiological sciencesmolecular biologymolecular geneticsnatural sciencesbiological sciencescell biologycell signalingmedical and health sciencesclinical medicineoncologynatural sciencesbiological sciencesbiochemistrybiomoleculesproteinsenzymes Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Topic(s) MSCA-IF-2014-EF - Marie Skłodowska-Curie Individual Fellowships (IF-EF) Call for proposal H2020-MSCA-IF-2014 See other projects for this call Funding Scheme MSCA-IF-EF-ST - Standard EF Coordinator CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Net EU contribution € 185 076,00 Address RUE MICHEL ANGE 3 75794 Paris France See on map Region Ile-de-France Ile-de-France Paris Activity type Research Organisations Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 185 076,00