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CIRCATRANS

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Control of mouse metabolism by circadian clock coordinated mRNA translation

The mammalian circadian clock plays a fundamental role in the liver by regulating fatty acid, glucose and xenobiotic metabolism. Impairment of this rhythm has been show to lead to diverse pathologies including metabolic syndrome.... see more

29/02/2016

Nestlé

1M€

Project Budget: 1M€

Project leader

NESTEC S.A No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

PARTICIPATION DEPralty Sin fecha límite de participación.

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Financing granted El organismo FP7 notifico la concesión del proyecto The day 2016-02-29 We do not have the information of the call

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2 Participantes

Nestlé

0.00€ | Leader

swiss aeropole SA

N.D. | participant

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Project leader

NESTEC S.A No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Project Budget 1M€

participation deadline Sin fecha límite de participación.

Project description The mammalian circadian clock plays a fundamental role in the liver by regulating fatty acid, glucose and xenobiotic metabolism. Impairment of this rhythm has been show to lead to diverse pathologies including metabolic syndrome. At present, it is supposed that the circadian clock regulates metabolism mostly by regulating the expression of liver enzymes at the transcriptional level. We have now collected evidence that post-transcriptional regulations play also an important role in this regulation. Particularly, recent results from our laboratory show that the circadian clock can synchronize mRNA translation in mouse liver through rhythmic activation of the Target Of Rapamycin Complex 1 (TORC1) with a 12-hours period. Based on this unexpected observation, we plan to identify the genes rhythmically translated in the mouse liver as well as the mechanisms involved in this translation. Indeed, our initial observations suggest a cap-independent translation during the day and a cap-dependent translation during the night. Identification of the different complexes involved in translation at this two different times and their correlation with the sequence, structure, and/or function of the translated genes will provide new insight into the action of the circadian clock on animal metabolism. In parallel, we will identify the signalling pathways involved in the rhythmic activation of TORC1 in mouse liver. Finally, we will study the consequences of a deregulated rhythmic translation in circadian clock-deficient mice on the metabolism and the longevity of these animals. Perturbations of the circadian clock have been linked to numerous pathologies, including obesity, type 2 diabetes and cancer. Our project on the importance of circadian clock-coordinated translation will likely reveal new findings in the field of regulation of animal metabolism by the circadian clock.

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