Project description
Unravelling the dynamics of myelopoiesis
Changes in immune blood cell numbers indicate infection or inflammation, but the cell dynamics behind these changes are poorly understood. Funded by the European Research Council, the Dynamyelo project aims to investigate the number of divisions as well as the differentiation and death rates of myeloid cells during myelopoiesis. For this purpose, the team will develop DivCounter, a new method to count in vivo divisions in mice. This method overcomes the limitations of current methods that can trace up to 10 cell divisions. Dynamyelo will improve understanding of myelopoiesis during inflammation and benefit vaccine and immunotherapy development.
Objective
Although changes in immune blood cell number is commonly used as a sign of infection or inflammation in the clinics, the cell dynamics parameters controlling cell numbers during an immune response (division, differentiation, and death) are not well understood. As myeloid cells are short lived, changes in myeloid cell numbers comes from cell production by myelopoiesis. Given the importance of cell dynamics in immune response, we propose to unravel the cell dynamics of myelopoiesis during inflammation. However, few methods allow to measure in vivo the cell dynamics parameters. Methods to study division in vivo can trace up 10 divisions, apart for the telomere measures that have no maximum but is restricted to cell types without telomerase activity, unlike our cells of interest. As we estimate a minimum of 14 divisions from hematopoietic stem cells to myeloid cells, a new method to follow over 10 divisions is required. This proposal will overcome this methodological barrier by developing the DivCounter a new method, to count division in vivo in mice. Our innovation is: 1/ to implement a quantitative counter of division combining wet and dry lab. 2/ compatible with single cell transcriptomics to measure cell differentiation status with the required granularity. 3/ creating a new mouse model. Using the DivCounter, we will quantify for the first time the number of divisions in homeostatic myelopoiesis. We will also infer division, differentiation and death rate, uncovering the understudied role of death in myelopoiesis. We will also unravel how division and death change during emergency myelopoiesis and when and how myelopoiesis returns to homeostasis after inflammatory stimulations. This knowledge will shed light on which of the cell dynamics parameters to intervene to change myeloid cell numbers, opening therapeutic perspective for the design of vaccines and immunotherapies. The DivCounter will serve other fields in which cell dynamics is key (cancer, 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.
- medical and health sciences basic medicine pharmacology and pharmacy pharmaceutical drugs vaccines
- medical and health sciences clinical medicine oncology
- medical and health sciences basic medicine immunology immunotherapy
- 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.1.1 - European Research Council (ERC)
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Topic(s)
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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
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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-ERC - HORIZON ERC Grants
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2023-COG
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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
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