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Exploring the Prokaryotic-Eukaryotic Conservation of Antiviral immunity: from ba...

Exploring the Prokaryotic-Eukaryotic Conservation of Antiviral immunity: from bacterial immune systems to novel antiviral drugs Bacteria have evolved multiple lines of defense against their viruses, bacteriophages. Such weapons include restriction modification and CRISPR systems that have greatly impacted biomedical research. Studies aimed at uncovering no... ver más

30/09/2027

1M€

Presupuesto del proyecto: 1M€

Líder del proyecto

INSTITUT PASTEUR No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Ver 2 Participantes

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2022-04-22

ERC-2021-STG: ERC STARTING GRANTS Scope:Objectives

I+D

Cerrada hace 3 años

0% 100% 100%

2 Participantes

1.25M€ | Lider

INSERM

245.29K€ | Participante

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Duración del proyecto: 65 meses Fecha Inicio: 2022-04-22
Fecha Fin: 2027-09-30

Líder del proyecto

INSTITUT PASTEUR No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 1M€

Descripción del proyecto Bacteria have evolved multiple lines of defense against their viruses, bacteriophages. Such weapons include restriction modification and CRISPR systems that have greatly impacted biomedical research. Studies aimed at uncovering novel defense mechanisms describe an unsuspected diversity of anti-phage systems, spanning thousands of protein families. Several of these anti-phage systems, such as prokaryotic viperins, appear to be ancestors of major eukaryotic antiviral pathways. This striking conservation between eukaryotic and prokaryotic immunity leads me to two hypotheses on which the present proposal is based. First, I postulate that the organisation of antiviral immunity in eukaryotes as an immune system, i.e. an integrated network of various antiviral mechanisms, might be conserved in prokaryotes. This implies that each anti-phage system does not act in isolation, but is rather part of a whole, the bacterial immune system. To explore this hypothesis, I will characterise the distribution of known anti-phage systems encoded in prokaryotic genomes. I will subsequently explore the potential synergies and co-regulation existing between these systems. I thereby aim to build an integrated map of bacteria antiviral immunity. Second, I hypothesise that prokaryotes produce additional small anti-phage compounds, such as the viperin products, with a potential activity against eukaryotic viruses. To explore this idea, I will study the molecular mechanisms of the viperin family. I will then use genomics to predict novel chemical based anti-phage systems and follow up with their experimental characterizations. These projects could lead to the identification of novel antiviral molecules that could be further harnessed in the clinic. Overall, I expect this proposal to generate new knowledge that will have the potential to radically change our view on the immune systems of prokaryotes and provide new therapeutic leads.

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