Objective
Extrachromosomal circular DNA (ecDNA) present in cancer cells stochastically amplifies oncogenes and drug resistance genes independent from the core genome and thereby contributes to tumor adaptability and heterogeneity. While ecDNA prevalence, diversity, and biological traits have been studied, we lack insights into their expression regulation. It is unclear how it differs from chromosomal genes and how it is linked to the non-random and dynamic nuclear localization patterns observed for many ecDNA. Moreover, we are unaware of the proteins that participate in interactions with nuclear compartments to control ecDNA transcription. Most studies using sequencing and FISH methods fall short in describing these dynamic processes. However, understanding their implications is vital for designing therapies that target ecDNA expression as a whole instead of targeting individual oncogenes. To advance our knowledge, we need tools to map ecDNA transcription at high temporal and spatial resolution and systematic methods to screen for associated proteins. The aim of this project is to identify crucial overarching mechanisms and players of ecDNA transcription through an interdisciplinary approach. The Medema group has devised protocols to induce extrachromosomal amplification of drug resistance genes in diverse cellular backgrounds and genetically tag them for imaging and perturbation. The present study will build on this work to for the first time reveal the spatiotemporal co-regulation of ecDNA transcription and localization using innovative imaging reporters for measurements in single live cells and use unbiased proteomic profiling to map factors that interact with ecDNA and regulate their expression. Besides addressing outstanding questions in the field, our study will create unique cell models and datasets as a basis for future studies. Our results will furthermore inform the design of more effective treatments for the many cancer patients affected in Europe and worldwide.
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
- medical and health sciences clinical medicine oncology
- natural sciences biological sciences genetics genomes
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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-2023-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.
3584CS Utrecht
Netherlands
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.