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Mechanisms linking stress and ageing in two avian species exhibiting contrasted...

Mechanisms linking stress and ageing in two avian species exhibiting contrasted natural resistance to stress NAtural REsistance to Stress Induced Cellular Ageing Previous research has identified stress exposure as a key factor influencing health state and ageing rate. The overall aim of the proposed project is to investigate the precise mechanisms linking stress exposure to accelerated cel... ver más

31/08/2023

UNIVERSITE LYON 1...

185K€

Presupuesto del proyecto: 185K€

Líder del proyecto

UNIVERSITE LYON 1 CLAUDE BERNARD No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2023-08-31

MSCA-IF-2019: Individual Fellowships

I+D

Cerrada hace 5 años

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Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

UNIVERSITE LYON 1 CLAUDE BER...

184.71K€ | Lider

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Duración del proyecto: 41 meses Fecha Inicio: 2020-03-28
Fecha Fin: 2023-08-31

Líder del proyecto

UNIVERSITE LYON 1 CLAUDE BERNARD No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 185K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Previous research has identified stress exposure as a key factor influencing health state and ageing rate. The overall aim of the proposed project is to investigate the precise mechanisms linking stress exposure to accelerated cellular ageing (using telomere length as a biomarker of ageing), and to identify potential mechanisms allowing some species to better prevent stress-induced ageing than others. To this aim I will use two avian species (Japanese quail and king penguin) to investigate (1) if chronic stress affects telomere shortening differently between species exhibiting contrasted stress resistance, (2) if glucocorticoid ‘stress’ hormones are directly responsible of the stress-induced alterations in telomere dynamics, (3) by which mechanisms (i.e. alterations of mitochondrial function, oxidative stress and DNA damage, impaired mTOR cellular signalling or telomere maintenance) stress exposure is accelerating telomere shortening, and if king penguin have specific mechanisms preventing/limiting stress-induced telomere shortening, and (4) if chronic stress / glucocorticoid hormones modify the acute oxidative stress responses of individuals. To this end, I will employ experimental approaches manipulating stress exposure and glucocorticoid hormones in captive Japanese quail and wild king penguins, and measure the resulting impact on telomere shortening and its potential cellular drivers (mitochondrial function, oxidative stress, mTOR cellular signalling). This project will enable a two-way transfer of skills and competences between the applicant and the host, by providing training to the applicant regarding mitochondrial biology, cellular signalling and gene expression, and by providing the host with the opportunity to integrate an ageing component through the use of telomeres in his current and future projects.

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