Project description
Understanding what makes cells change their identity
Our cells carry the code for all the proteins our body makes. However, each cell type makes only those proteins required for its function. During normal development or abnormal processes such as cancer, a cell changes its identity during cell division. At this time, chromatin condenses, copies of the code are made, and they are passed on to the daughter cells. The window between chromatin condensation and chromatin reorganisation represents an important opportunity for reprogramming. The RepDiff project plans to compare proteins in undifferentiated cells that remain pluripotent after cell division with those in cells that take on new identities. Insight will have broad-reaching impact on normal and abnormal cell fate transitions.
Objective
All cells in our body share the same genetic information. Cellular identity is determined by epigenetic mechanisms, which control gene expression. Replicating cells should accurately replicate their DNA sequence and copy their epigenetic profile to maintain their identity. DNA replication entails the disruption of the chromatin organization ahead of the replication fork and its restoration behind it. When cells change their identity in either normal development or abnormal processes as cancer, they undergo epigenetic reconfiguration, which defines their new identity.
Recent works have revealed a time gap between DNA replication and epigenetic state restoration of many chromatin regulation layers. I hypothesize that the time until chromatin restoration post DNA replication provides a ‘window of opportunity’ for transcription factors and chromatin regulators to bind otherwise inaccessible areas and to facilitate chromatin reconfiguration and that pluripotent cells have specialized chromatin replication proteins, which preserve their high epigenetic plasticity. To test this hypothesis, I will join the lab of Prof. Anja Groth, a leading expert in the mechanisms controlling chromatin replication. Together with my expertise in stem cells and reprogramming, I will address this question with two sequential steps. I will use a cutting edge, quantitative proteomics method in which nascent DNA is affinity purified and its associated proteins are analyzed by mass-spectrometry (NCC-SILAC). I will use this discovery tool to define the proteins dynamically associated with nascent chromatin in pluripotent cells and cells that undergo cell fate transitions. I will then investigate proteins predicted to effect chromatin restoration/reconfiguration to dissect their functional role. This work has the potential to reveal a mechanistic link between DNA replication and cell fate decision and thus significantly contribute to the fields of development, stem cells, and cancer.
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 proteomics
- natural sciences biological sciences genetics DNA
- medical and health sciences medical biotechnology cells technologies stem cells
- medical and health sciences clinical medicine oncology
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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.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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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.
MSCA-IF-EF-ST - Standard EF
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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) H2020-MSCA-IF-2018
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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.
1165 KOBENHAVN
Denmark
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.