Objective
Life-long blood regeneration is critically dependent on self-renewing multipotential hematopoietic stem cells (HSCs). HSCs’ nearly unlimited self-renewal potential and lifetime persistence in the body, in contrast to the committed progenitors (CP), signifies the need for HSCs genome integrity tight control. Indeed, accumulation of unrepaired DNA damage in HSCs is associated with bone marrow failure and accelerated leukemogenesis. Our recent findings revealed for the first time striking differences in DNA Damage Response (DDR) characteristics between HSCs and CPs isolated from umbilical cord blood. Human HSCs exhibited attenuated DNA repair, persistent DDR signaling and increased apoptosis relative to CPs. Yet, the molecular basis and physiological significance of these HSC-specific DDR characteristics remain unexplored.
To bridge the gap in this highly significant knowledge I propose the following research objectives: 1) To analyze in details DDR signaling in the highly purified HSC and CP subsets isolated from physiologically distinct developmental stages of human hematopoiesis: fetal, neonatal and adult; 2) To identify functional regulators engaged by genotoxic stress in normal and leukemia stem cells. To address these questions I will employ multi color flow cytometry, functional genetic screens, mRNA/microRNA expressional profiling, clonal in vitro assays and, most importantly, in vivo repopulation assays of human normal HSC and leukemia-initiating cells. Furthermore, we will pursue a novel DNA repair fluorescent reporter strategy to examine DNA repair activity and fidelity in live human HSC.
This original study will form the foundation for my long-term goals of identifying regulators of DDR in human HSCs and in leukemia-initiating cells, revealing mechanisms utilized by self-renewing cells to maintain genome integrity and combat stress, and provide novel insights into leukemogenesis, blood regeneration and aging.
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.
- engineering and technology materials engineering colors
- natural sciences biological sciences genetics DNA
- medical and health sciences medical biotechnology cells technologies stem cells
- medical and health sciences clinical medicine oncology leukemia
- 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.
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.
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.
FP7-PEOPLE-2012-CIG
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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.
MC-CIG - Support for training and career development of researcher (CIG)
Coordinator
69978 Tel Aviv
Israel
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.