Objective
DNA double-strand breaks (DSBs) occur frequently during a cell’s lifetime and constitute the most cytotoxic DNA lesion. DSBs compromise genetic integrity and have the potential to trigger cell death and generate pathological mutations. To counteract such threat, cells possess a complex protein network termed DSB response (DSBR) which senses, signals and repairs DSBs. Two predominant mechanisms repair DSBs: homologous recombination (HR) and non-homologous end joining (NHEJ).
While loss of DSBR factors such as KU and XRCC4 (i.e. NHEJ proteins) or BRCA1 and BRCA2 (i.e. HR proteins) leads to early embryonic lethality and cell death, inactivating somatic mutations in these very same genes are associated with certain immunological and neurological disorders, premature ageing and cancer. This implies the existence of a suppressive (epi)genetic background that enables diseased cells to tolerate the otherwise lethal loss of essential DSBR factors.
This project aims to systematically identify suppressor mutations which rescue viability upon loss of essential HR (BRCA1 and BRCA2) and NHEJ (KU80 and XRCC4) effectors. To reach such goal, I propose to (a.) genetically sensitize wild-type “healthy” mouse embryonic stem cells and B lymphoid cells by introducing mutations using a genome-wide CRISPR KO library. In such diversely sensitized background, I will then (b.) trigger the acute degradation of KU80, XRCC4, BRCA1 and BRCA2 proteins, using the auxin-inducible degron (AID) system. Suppressor mutations will be directly identified by sequencing sgRNA retrieved from survivor cells. (c.) The resulting suppression network maps will be integrated to clinical datasets to identify the relevance of these mutations in disease.
Together, this project will unravel the DSBR protein networks that permit cell survival under different DNA repair-deficient conditions, encountered notably in cancer; paving way for personalized disease prevention and treatment strategies.
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 genetics DNA
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences biological sciences genetics mutation
- medical and health sciences clinical medicine oncology
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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.
75724 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.