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VIVA SIGNED

Vaccine development against variable pathogens

Total Cost €

0

EC-Contrib. €

0

Partnership

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Project "VIVA" data sheet

The following table provides information about the project.

Coordinator
KAROLINSKA INSTITUTET 

Organization address
address: Nobels Vag 5
city: STOCKHOLM
postcode: 17177
website: www.ki.se

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Sweden [SE]
 Total cost 1˙750˙000 €
 EC max contribution 1˙750˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-STG
 Funding Scheme ERC-STG
 Starting year 2020
 Duration (year-month-day) from 2020-02-01   to  2025-01-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    KAROLINSKA INSTITUTET SE (STOCKHOLM) coordinator 1˙750˙000.00

Map

 Project objective

Vaccination is the most effective strategy to prevent infectious diseases but despite years of research there are no vaccines against variable pathogens such as HIV-1. Contrary to what is required for non-variable pathogens, vaccines against genetically variable pathogens need to elicit antibodies specific for conserved epitopes to protect against the majority of strains. These antibodies are termed broadly neutralizing antibodies (bNAbs). bNAbs against the genetically variable HIV-1 surface protein Env are highly somatically mutated and develop in a fraction of infected individuals, but have thus far failed to be elicited by vaccination. For a vaccine to elicit antibodies against a specific epitope of a variable pathogen, it needs to specifically expand rare precursor cells in the presence of a polyclonal B cell response that bind other parts of the same antigen. Furthermore, it needs to guide the rare precursor cells through repeated germinal center reactions to induce high numbers of somatic mutations, a critical characteristic for the potency of HIV-1 bNAbs. To develop such vaccines, we need to understand the regulation of antigen-driven affinity maturation of B cells in a polyclonal immune system in response to complex antigens. To study this, we will perform immunization experiments of wild type mice, adoptively transferred to include a limited pool of naïve B cells from novel HIV-1 Env-specific human antibody knock-in mice. In contrast to conventional antibody knock-in mice that have been used to study B cell activation previously, naïve precursor B cells from these knock-in mice are specific for a complex pathogen-derived antigen. Detailed characterization of the immune responses that develop in response to Env- and non-Env-based antigens, will enable us to generate vaccines that more efficiently drive protective immune responses against variable pathogens such as HIV-1 and Influenza, as well as potential emerging diseases.

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The information about "VIVA" are provided by the European Opendata Portal: CORDIS opendata.

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