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HIVINNATE

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Characterisation and Manipulation of Primate Lentiviral Interactions with Innate...

Characterisation and Manipulation of Primate Lentiviral Interactions with Innate Immunity Our aim is to seek detailed molecular level understanding of the interactions between HIV-1 and innate immune sensors expressed in myeloid cells. We have demonstrated that HIV-1 replicates in primary human macrophages without trig... ver más

31/01/2019

UNIVERSITY COLLEGE...

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

UNIVERSITY COLLEGE LONDON No se ha especificado una descripción o un objeto social para esta compañía.

Fecha límite participación Sin fecha límite de participación.

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Financiación concedida El organismo FP7 notifico la concesión del proyecto el día 2019-01-31 No tenemos la información de la convocatoria

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2 Participantes

UNIVERSITY COLLEGE LONDON

2.50M€ | Lider

UNIVERSITY COLLEGE LONDON

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Líder del proyecto

UNIVERSITY COLLEGE LONDON No se ha especificado una descripción o un objeto social para esta compañía.

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Our aim is to seek detailed molecular level understanding of the interactions between HIV-1 and innate immune sensors expressed in myeloid cells. We have demonstrated that HIV-1 replicates in primary human macrophages without triggering interferon production. However, by specific mutation of HIV-1 proteins or by manipulating interaction with host cofactors we can reveal the virus to innate immune receptors and activate an antiviral response leading to secretion of soluble type 1 interferon and cessation of replication. We propose to define the sensors and the details of the antiviral pathways that are activated in macrophages using proven RNA interference techniques reading out activation of innate immune responses by measurement of secreted interferon and induction of gene expression. We have also characterised small molecules that potently inhibit HIV-1 by revealing HIV-1 to innate immune sensors. In collaboration with crystallographers and medicinal chemists we aim to improve the potency and specificity of these drugs and to use them to study the anti-HIV-1 innate immune response. DC are sentinels of innate immunity and their infection induced maturation leads to interferon production and DC dependent T cell maturation that defines the nature and potency of the immune response. We will examine the effect of triggering innate responses in DC using HIV-1 mutants/drug treated wild type virus on allogeneic responses, by measurement of T cell proliferation and function and in an ex vivo CD8 T cell killing assays using peripheral blood CD8 cells from HIV‑1 infected patients. In this way we will uncover the molecular details of HIV-1’s interaction with innate immunity and discover how the virus replicates in primary immune cells without detection. This work will make a significant technical and intellectual contribution to an important emerging scientific field focusing on understanding and manipulating the complex relationship between HIV-1 and innate immunity.

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