Objective
The function of the three mitochondrial sirtuins SIRT3, 4, and 5 is poorly understood at present. As a limited number of studies have focused on SIRT3, its exact function and regulation in mammalian physiology need still to be elucidated. Likewise, beyond its recently discovered role in the regulation of carbamoyl phosphate synthase 1 (CPS1), nothing is known about the function of SIRT5, one of the other mitochondrial deacetylases from the sirtuin family. The present research project proposes to elucidate the function of SIRT3 and SIRT5 in the liver, a tissue in which both sirtuins are highly expressed. To accomplish this we will achieve the following specific aims: first, generating mice that lack SIRT3, SIRT5, and both SIRT3 and 5 specifically in hepatocytes. Second, evaluating how altering SIRT3 and/or SIRT5 expression levels specifically in liver can affect the hepatic and organismal response to metabolic stresses such as diets rich in carbohydrates and fat, in proteins, or in ethanol, whose metabolism takes place mostly in the mitochondria and, for the most part, in liver cells. Finally, we want to study whether SIRT3 and SIRT5 are involved in liver tumor development: exposure to different tumorigenic stimuli as alcohol-rich diets or certain mutagenic treatments leads to a change in SIRT3 and SIRT5 activity and cellular localization; all this points towards a possible function of these proteins in liver tumor development, an aspect we want to study in this project.
We expect that our research will elucidate the basic function of hepatic SIRT3 and SIRT5 in metabolism and cancer. The outcome of our work will not only be useful from a fundamental scientific point of view, but it will also pave the way to new therapies that target SIRT3 and/or SIRT5 or the signaling pathways controlled by them in metabolic disease and hepatocarcinoma, ultimately improving healthspan and healthy 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.
- medical and health sciences health sciences nutrition
- medical and health sciences clinical medicine oncology
- medical and health sciences basic medicine pathology
- medical and health sciences basic medicine physiology
- natural sciences chemical sciences organic chemistry alcohols
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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-2009-IEF
See other projects for this call
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.
Coordinator
1015 LAUSANNE
Switzerland
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.