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Last Updated: 10/05/2023

Structure-function analysis of Plasmodium vivax blood stage ligands for invasion – PvINV

Objectives

The objectives of this study are:

  • To determine the structure of the PvDBP-DARC complex and map the binding site for DARC;
  • To investigate the potential role of the PvDBP homolog, P. vivax erythrocyte binding protein (PvEBP), in mediating reticulocyte invasion;
  • To explore the functional roles of novel P. vivax antigens that are structural homologs of the P. falciparum invasion protein, PfRH5; and
  • To identify combinations of P. vivax invasion ligands that elicit synergistic invasion inhibitory antibodies as potential vaccine candidates for P. vivax.
Principal Institution

Institut Pasteur, France

Principal Investigators / Focal Persons

Chetan Chitnis

Rationale and Abstract

Plasmodium vivax causes significant morbidity in the tropical world. A vaccine that protects against P. vivax and reduces transmission would help efforts to eliminate malaria. The P. vivax Duffy binding protein (PvDBP), a leading vaccine candidate, binds the Duffy antigen receptor (DARC) to mediate reticulocyte invasion by P. vivax merozoites.

Date

Sep 2021 — Mar 2025

Total Project Funding

$627,370

Funding Details
National Research Agency (ANR) France, France

Project number: ANR-21-CE15-0013
€571,750
Project Site

France

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