Objective
Lipids are essential components of cell membranes. Every organelle membrane is constituted of a unique composition of different lipid species. This distinctive lipid distribution along organelle membranes is important to maintain the identity and functions of the different organelles. In this research project, I aim to understand how the lipid species phosphatidylinositol-4-phosphate (PI4P) is regulated and how this affects lipid homeostasis and cellular functioning. The PI4P distribution is important for intracellular signalling, lipid and protein trafficking. Alterations in PI4P levels may contribute to the progression of other neurodegenerative disorders, e.g. Alzheimer's disease. In this project, I will study the PI4P phosphatase Sac1. Sac1 consumes PI4P in the endoplasmic reticulum or Golgi apparatus. This locally lowers PI4P levels, therefore maintaining the asymmetric distribution of PI4P in the cell. The PI4P gradient is important for the transport of lipids and proteins. In cell models, Sac1 knockdown or knockout severely compromises cell viability, whereas Sac1 knockout mouse or drosophila are embryonically lethal. This highlights the importance of Sac1, however, making it difficult to examine the physiological functions of Sac1. In this project, I will use an auxin-inducible degradation (AID) system to induce the degradation of Sac1 within one hour. This allows me to assess the acute effects of Sac1 depletion. Using this model, I will address the following key objectives: 1) Examine the role of Sac1 in lipid homeostasis. 2) Investigate the regulatory mechanism of Sac1 in Golgi morphology and kinetics, and 3) Characterize a inducible degradation system in zebrafish. By employing the AID system in a zebrafish model, I aim to provide a new means to study the role of Sac1 in development. Taken together, this project will contribute to deeper insights into the regulatory function of Sac1 in lipid homeostasis and selective protein secretion.
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.
- medical and health sciences basic medicine neurology dementia alzheimer
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences biological sciences biochemistry biomolecules lipids
- medical and health sciences basic medicine physiology homeostasis
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
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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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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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) HORIZON-MSCA-2021-PF-01
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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.
00014 HELSINGIN YLIOPISTO
Finland
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.