Project description
Computational models of cell cytoplasm and organelle dynamics at nanoscale resolution
The goal of the EU-funded OrganellenanoComp project is to study the nanoscale organisation underlying physiological functions by modelling the flow of ions and molecules in the cytoplasm of neuronal and glial cells to organelles in various conditions. The proposal is based on mathematical modelling, large data analysis, simulation methods and the associated algorithms. The objective is to develop physical models of molecular diffusion and electro-diffusion relevant to nanophysiology. These models will be applied to interpret molecule or receptor transport and aggregation in some specific nano-regions. Using developed models, researchers will analyse data about single molecular motion or flux regulation inside the organelles, such as the endoplasmic reticulum or mitochondria, and calcium exchange in nano-domains during synaptic transmission in dendrites.
Objective
Neuronal and glial physiology in nanodomains remains poorly understood due to the spatio-temporal limitation of direct unperturbed in vivo measurements. Yet, it is the scale of voltage regulation, ionic, proteins and molecular trafficking, metabolism control and local signal transduction. The goal of this proposal is to determine how the flow of ions and molecules is regulated in the cytoplasm in relation with organelles, such as the endoplasmic reticulum and mitochondria in various physiological conditions such as steady-state, induction of plastic changes or ionic depletion. The approach is based on mathematical modeling, large data analysis, simulation methods, and developing the associated fast and efficient algorithms. We developed in the past 15 years computational tools such as molecular modeling, stochastic simulations and data analysis at a molecular level to study various signals such as voltage recordings or super-resolution microscopy single particle trajectories (SPTs). However, these theoretical approaches are not sufficient today to face the novel data revolution coming from SPTs, but also voltage dyes, voltage recorded by nanopipettes, or photoconversion in nanocompartments. The aim of the project is to develop physical models of molecular diffusion and electro-diffusion. These models will be applied to reconstruct and interpret the local transport, which is not homogeneous because molecules or receptors could aggregate in some specific nano-regions. We will explore the mechanisms underlying this heterogeneity. Second, we will apply these modeling and numerical simulations to analyze data about flux regulation inside the cytoplasm but also in organelles, such as the ER and mitochondria.Third we analyze calcium fluorescent data (photoactivation, local uncaging) to study how calcium is exchanged in nanodomains during synaptic transmission in dendrites and dendritic spines.
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 chemical sciences inorganic chemistry alkaline earth metals
- natural sciences physical sciences optics microscopy super resolution microscopy
- natural sciences biological sciences biochemistry biomolecules proteins
- social sciences political sciences political transitions revolutions
- medical and health sciences basic medicine physiology
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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.
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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
MAIN PROGRAMME
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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.
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.
ERC-ADG - Advanced Grant
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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.
(opens in new window) ERC-2019-ADG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
75794 PARIS
France
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.