Project description
Specific transcription factors and their role on gene expression
Transcription factors (TF) are proteins that play a crucial role in the transcription of DNA into RNA. Supported by the Marie Skłodowska-Curie Actions programme, the GRADMAP project will investigate a hypothesis that transcription factors (TFs) are non-randomly spatially organised within the cell nucleus and form radial gradients that may be crucial in regulating gene expression. It will differentiate haematopoietic stem cells (HSCs) into different lineages and use CUT&RUN to map where transcription factors bind on DNA over time and within the nucleus.
Objective
Here I propose an ambitious project designed to explore an exciting new hypothesis: TFs are non-randomly spatially organised within the cell nucleus, forming radial gradients that likely play an important role in regulating gene expression. This idea was born from one of the intriguing discoveries revealed by Genomic loci Positioning by Sequencing (GPSeq), a technique developed in the host lab, that the binding motifs of the majority of human transcription factors (TFs) seem to form radial density gradients, with some TF binding motifs being more abundant towards the nuclear periphery, whilst others more abundant in the centre. Furthermore, preliminary analysis showed that the predicted binding motifs of master regulator TFs specifying lymphoid vs myeloid lineages form opposing radial gradients, suggesting that this mode of transcriptional regulation is critical for cell fate specification. In this project, I will differentiate hematopoietic stem cell (HSC) into opposing lineages (lymphoid/myeloid) and perform TF CUT&RUN to assay TF occupancy and chromatin landscape, coupled with GPSeq to assay the radial arrangement of chromatin in these lineages. The intersection of these two genome-wide datasets will provide the first ever map of the occupancy of lineage specific transcription factors through differentiation time and nuclear space with respect to radiality. In parallel I will generate additional omics datasets in these cell populations to assay chromatin accessibility, transcription and chromatin interactions to build a comprehensive, multi-dimensional genomic atlas in which the spatial arrangement of TFs can be linked with gene expression dynamics. Crucially, no other study has thus far addressed this novel hypothesis; my work will provide significant advancements in understanding the interplay of genome architecture with transcriptional regulation and cell-fate specification.
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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)
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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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2024-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.
20157 Milano
Italy
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