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Exploring the link between innate Immunity and cellular Aging

Exploring the link between innate Immunity and cellular Aging

Objective

The innate immune system has evolved signalling receptors, which detect various stresses including microbial infection but also signals emanating from non-infectious cellular damage. Upon activation, these signalling receptors can trigger a variety of distinct effector responses collectively aimed towards maintaining the integrity of the host. The recognition of cytosolic DNA through the cGAS-STING pathway is a fundamental mechanism through which pathogens and cellular stress evoke an inflammatory response. Recently, we discovered a new role of the cGAS-STING pathway in promoting cellular senescence, a critical stress response program that is emerging as a key driver of aging. On the basis of this finding, the overarching gaol of ImAgine is to further explore the molecular links that exist between the mechanisms of innate immune signalling and those underlying aging processes. Specifically, we will address whether the cGAS-STING pathway acts as a contributor to age-associated phenotypes and we will interrogate mitotic perturbations as a physiological source of age-associated damage that activates the innate DNA sensing machinery. Another intriguing possibility emerging from our work is that cellular senescence is relevant for the host response against pathogens. Utilising an array of genetic and pharmacological tools, we will challenge this idea and molecularly decipher the role of senescent cells in physiological models of acute and chronic infection. A detailed picture of the interplay between innate immune pathways and cellular ageing will not only be a critical step towards a global understanding of fundamental host response mechanisms, but may also provide new concepts for the treatment of diseases that are associated with infectious diseases or ageing.
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Host institution

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE

Address

Batiment Ce 3316 Station 1
1015 Lausanne

Switzerland

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 489 520

Beneficiaries (1)

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ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE

Switzerland

EU Contribution

€ 1 489 520

Project information

Grant agreement ID: 804933

Status

Ongoing project

  • Start date

    1 January 2019

  • End date

    31 December 2023

Funded under:

H2020-EU.1.1.

  • Overall budget:

    € 1 489 520

  • EU contribution

    € 1 489 520

Hosted by:

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE

Switzerland