Objective
Chromosome condensation during mitosis has long been assumed to render mitotic chromatin incompatible with transcription. However, recent evidence shows that some chromosomal regions (e.g. centromeres, some genes) are transcribed in mitosis. These findings imply that mitotic transcription inhibition (MTI) is not a global event along the entire chromosome. Instead, I propose that mitotic transcriptional silencing is spatially regulated, allowing specific loci to evade MTI and maintain their transcription.
Testing this novel hypothesis is challenging due to our poor understanding of the mechanisms driving MTI. Additionally, commonly used techniques to study transcription (e.g. genome-wide approaches) provide snapshots of the process but lack temporal resolution to dissect fast changes in transcription. With SUB-SCRIPT, I will implement an advanced imaging tool in live cells to uncover the dynamics of ongoing transcription throughout mitosis, for selected loci. I will apply this approach to selected genes to test how transcription regulation in mitosis varies depending on gene architecture/identity. In parallel, I will make use of a putative MTI factor (my preliminary observations) to manipulate the transcriptional state of selected genes during mitosis. Both strategies will capitalize on my vast expertise in dCas9 use for chromosome targeting, which I will further exploit to imaging RNAs (dCas13). Ongoing work in the host lab on chromosome assembly and novel mechanisms that drive MTI provides an excellent environment for project implementation.
The completion of this project will uncover how different genes display unique kinetics of transcriptional regulation during mitosis and how MTI is regulated at the sub-chromosomal level, challenging current views on how mitotic transcription shut-down occurs. It will also provide novel tools and concepts to explore how MTI can actively impact mitotic fidelity, transcriptional control, cell physiology and potentially disease.
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 physiology
- natural sciences biological sciences genetics chromosomes
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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.4.1 - Widening participation and spreading excellence
MAIN PROGRAMME
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HORIZON.4.1.5 - Fostering brain circulation of researchers and excellence initiatives
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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-WIDERA-2022-TALENTS-04
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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.
1649 023 LISBOA
Portugal
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.