Objective
Guanine-rich DNA sequences can adopt stable non-classical four-stranded guanine quadruplex structures in-vitro under near physiological conditions. It has been shown that a ligand stabilizing such quadruplex could inhibit the extension of telomeric DNA by the human telomerase. Therefore, ligands stabilizing and/or inducing the formation of human telomeric quadruplex have potential as anti-cancer therapeutic agents. Since quadruplex structures differ considerably from double-stranded B-DNA helices, there has been considerable interest in the design and development of ligands that selectively stabilize G-quadruplex over duplex DNA.
Further, sequences in the promoter region of certain oncogenes can potentially form quadruplex structures and it is believed that such structures can interfere with the expression level of these genes. However, it also raises the important need to ultimately generate ligands that show discrimination not only between quadruplex and duplex DNA but also between quadruplexes themselves. We propose here the design and synthesis of several heterocycle-based planar macrocycles where heterocycles (e.g. pyridine, oxazole and thiazole) are either directly linked through C-C bond or through amides. Such structures are inspired from the natural p roduct telomestatin, a flat poly-oxazole macrocycle, which is the most potent telomerase inhibitors identified so far.
Those planar macrocycles should offer the advantage of better solubility when compared to telomestatin and represent an original platform for appending side-chains capable of interacting with specific loops and grooves of a particular quadruplex. These new ligands will then be screened against three biologically relevant quadruplexes located within the promoter regions of oncogenes c-kit, N-ras and H-ras, which have recently been identified in the Balasubramanian's group.
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 condensed matter physics quasiparticles
- natural sciences biological sciences biochemistry biomolecules nucleic acids
- natural sciences biological sciences genetics DNA
- natural sciences biological sciences genetics RNA
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
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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)
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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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2005-MOBILITY-7
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Funding Scheme
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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.
IIF - Marie Curie actions-Incoming International Fellowships
Coordinator
CAMBRIDGE
United Kingdom
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