Project description
Exploring mammalian development with stem cells
Mammalian development is an incredibly complex and poorly understood process, governed largely by genes and gene regulatory networks. The ERC-funded DynaDiff project seeks to unravel the complexities of this process by investigating the role of nucleoplasmic membrane-less organelles in transcriptional dynamics during mammalian stem-cell differentiation. The project will also characterise the transcriptional dynamics of mouse and human stem cells utilising single-cell RNA sequencing. The study will then explore the role of pro-myelocytic leukaemia nuclear bodies and nuclear speckles in the transcription dynamics of these pluripotent cells and the effect they have on the organisation of chromatin conformations. This research will provide vital clues to human development and may assist developmental and regenerative medical therapies.
Objective
Development is driven by transcriptional programs where specific gene regulatory networks (GRN) control genes on several time scales. However, the extent to which transcriptional dynamics are coordinated for different genes and how the differential downregulation of the progenitor GRN determines cell fate remains poorly understood. This in part due to the difficulty of measuring genome-wide transcription with temporal resolution in complex developmental systems. Plus, transcription occurs in the nuclear context, where the nucleoplasm is compartmentalized into a variety of highly dynamic condensates known as membraneless organelles (MLOs), which include nucleoli, PML (promyelocytic leukaemia) nuclear bodies (PML-NBs), and nuclear speckles (NSs). The homeostasis of these MLOs changes during differentiation, but their impact on transcription and lineage commitment remains elusive. In DynaDiff, I aim to investigate the link between PML-NBs and NSs and transcriptional regulation during mammalian differentiation by: 1) developing single-cell RNA sequencing (scRNA-seq) methods to characterize transcriptional dynamics in mouse and human embryonic stem cells (m/hESCs) during the exit from pluripotency; 2) determining the role of PML-NBs and NSs on transcriptional dynamics during differentiation, and 3) assessing the role of PML-NBs and NSs in organizing chromatin conformation and its link to active transcription. I recently made a significant technological breakthrough, finally bringing long-awaited temporal resolution to scRNA-seq. This expertise, in combination with my background in high-throughput microscopy and computational analysis allows me to lead and conduct DynaDiff successfully. Finally, hESCs have the potential to form cell types from the three primary germ layers. Our knowledge of this system is paramount to understand human early embryonic development for the treatment of developmental disorders, and for the development of regenerative medicine.
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 physical sciences optics microscopy
- medical and health sciences clinical medicine oncology leukemia
- medical and health sciences basic medicine physiology homeostasis
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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.1.1 - European Research Council (ERC)
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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.
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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-ERC - HORIZON ERC Grants
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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) ERC-2021-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.
85764 Neuherberg
Germany
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