Objective
In mammalian development, the first cell lineages are established in the blastocyst, in which the inner cell mass (ICM) and the trophectoderm (TE) occupy distinct compartment along the embryonic inner-outer axis. The inner and outer cell layers in the embryo are generated during the transition from the 8-cell to 32-cell stage in principle by two dynamic processes, cell division and cell sorting. However, the mechanism by which the spindle orientation and cellular movement are regulated in the early mouse embryo largely remains elusive. This project aims at understanding the mechanical basis of the cell lineage segregation by high-resolution fluorescent live imaging and digital reconstruction of the blastocyst patterning. To minimize photo-damage and bleaching in the embryo, we will adapt selective plane illumination microscopy (SPIM) to the mouse embryo live-imaging. Specifically, we will optimize the optical design and embryo mounting and culture for live-imaging and 4D digital reconstruction. Transgenic fluorescent reporter mice visualizing the cell membrane, the nuclei, cytoskeletons, cell polarity markers and cell adhesion proteins will allow high-resolution tracking of the lineage segregation and understanding of its mechanical basis. Our image processing will extract molecular and cellular dynamics that correlate with cell division or cell sorting along the inner-outer axis, and will establish the underlying mechanistic model. The mechanistic model will allow predicting the impact of cellular physical constraints on cell division plane and movement, and will be evaluated by experimentally testing the prediction by means of micro-manipulation. This study will thus elucidate the mechanical aspect of the ICM and TE segregation for the first time. The developed imaging system and analysis will offer a wider contribution to understanding how cellular mechanical dynamics influence molecular dynamics during development.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences physical sciences optics microscopy
- natural sciences biological sciences cell biology cell polarity
- medical and health sciences clinical medicine embryology
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP7-PEOPLE-2012-IIF
See other projects for this call
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
69117 Heidelberg
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.