Objective
This proposal addresses a fundamental issue in molecular biology: how is repair of DNA double-strand breaks (DSBs) steered towards the appropriate physiological outcome? DSBs are cytotoxic DNA lesions that arise as a by-product of DNA replication, but also as a physiological intermediate during antigen receptor diversification in the Immune system. DNA end processing is a major determinant of DSB repair outcome. Resection of DNA ends is a prerequisite for physiological repair of replication-associated breaks by homologous recombination, but detrimental for productive end-joining events during immunoglobulin class switch recombination (CSR) in B lymphocytes. Furthermore, inappropriate resection of DSBs can cause loss of genetic information and chromosome deletions, which are common features of cancer genomes.
The mechanisms that regulate the balance between DNA end resection and protection are poorly understood. Here, I propose to study the molecular machinery that mediates protection of DNA ends in primary B cells, and the end resection-promoting factors that are antagonized by this activity. We and others have shown that the DNA repair factor 53BP1 plays a crucial role in protecting DNA ends against resection, and consistent with this function, 53BP1 is essential for CSR, but also responsible for aberrant repair of replication-associated DNA damage. In Aims 1 and 2, we will test the hypothesis that dynamic interactions between multiple 53BP1 effectors mediate protection of DNA ends against resection. In Aim 3, we will define the landscape of end resection-promoting factors in mammalian cells via a high-throughput RNAi screen for rescue of CSR in 53BP1-deficient B cells. By elucidating the molecular mechanisms underlying DSB end processing in B lymphocytes, these studies will significantly advance our understanding of the molecular basis of immunodeficiencies and cancer predisposition in lymphoma and solid tumors.
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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- natural sciences biological sciences genetics DNA
- medical and health sciences basic medicine immunology
- medical and health sciences clinical medicine oncology
- medical and health sciences basic medicine pathology
- natural sciences biological sciences genetics genomes
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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-STG - Starting 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-2014-STG
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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.
13125 Berlin
Germany
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.