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MEGAKINE

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Cerrado

Megakines novel tools for structural insight into receptor chemokine complexes

Chemokines are small, secreted cytokines that activate membrane receptors belonging to the G protein-coupled receptor (GPCR) superfamily. The chemokine-receptor interactions control crucial physiological processes, but are also im... ver más

31/08/2023

LIH

178K€

Presupuesto del proyecto: 178K€

Líder del proyecto

LUXEMBOURG INSTITUTE OF HEALTH 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

0% 100% 100%

Información adicional privada

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

1 Participantes

LIH

178.32K€ | Lider

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

Líder del proyecto

LUXEMBOURG INSTITUTE OF HEALTH No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 178K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Chemokines are small, secreted cytokines that activate membrane receptors belonging to the G protein-coupled receptor (GPCR) superfamily. The chemokine-receptor interactions control crucial physiological processes, but are also implicated in many pathologies, including atherosclerosis, inflammatory diseases, HIV infection or cancer, and hold a great potential for therapeutic intervention. Yet, although GPCRs are the target of about one third of currently marketed drugs, only three of them act on chemokine receptors, essentially due to poor structural understanding of the intricate interactions with their ligands. Indeed, about 50 chemokines and 20 receptors have been identified in humans. Their interactions require precise orchestration, as a chemokine may bind to several receptors, while a single chemokine receptor has multiple ligands. However, the structural determinants dictating ligand specificity and receptor activation remain elusive. Lately, cryo-EM has emerged as a ground-breaking technique for elucidating molecular structures but despite recent advancements, analysis of small proteins like receptor:chemokine complexes (∼50 kDa) is still challenging. In this project, we propose an innovative approach to increase the chemokine size, without altering its functionality, through a rigid insertion into a bulky scaffold protein. Such enlarged chemokines, called Megakines, will facilitate structural analysis of chemokine receptors. To prove this concept, we will first reformat the well-characterized chemokine CCL5 and use it in structural/functional studies with two clinically relevant receptors, CCR5 and ACKR2. The achievement of this project relies on the multidisciplinary combination of the excellent expertise in the chemokine field of the host laboratory and the protein engineering skills of the applicant. The proposed Megakine technology has the potential to revolutionize cryo-EM studies of chemokine receptors and facilitate the therapeutic development.

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