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Università della Svizzera italiana

The antibody response to Plasmodium falciparum : cues for vaccine design and the discovery of receptor-based antibodies

Tan, Joshua ; Piccoli, Luca ; Lanzavecchia, Antonio

In: Annual Review of Immunology

P. falciparum remains a serious public health problem and a continuous challenge for the immune system due to the complexity and diversity of the pathogen. Recent advances from several laboratories in the characterization of the antibody response to the parasite have led to the identification of critical targets for protection and revealed a new mechanism of diversification based on the...

Università della Svizzera italiana

Antibody-guided vaccine design : identification of protective epitopes

Lanzavecchia, Antonio ; Frühwirth, Alexander ; Perez, Laurent ; Corti, Davide

In: Current opinion in immunology, 2016, vol. 41, no. August, p. 62-67

In the last decade, progress in the analysis of the human immune response and in the isolation of human monoclonal antibodies have provided an innovative approach to the identification of protective antigens which are the basis for the design of vaccines capable of eliciting effective B-cell immunity. In this review we illustrate, with relevant examples, the power of this approach that can...

Università della Svizzera italiana

A LAIR-1 insertion creates broadly reactive antibodies against malaria variant antigens

Tan, Joshua ; Pieper, Kathrin ; Piccoli, Luca ; Abdi, Abdirahman ; Tully, Claire Maria ; Foglierini Perez, Mathilde ; Geiger, Roger ; Jarrossay, David ; Maina Ndungu, Francis ; Wambua, Juliana ; Bejon, Philip ; Silacci Fregni, Chiara : Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland ; Fernandez-Rodriguez, Blanca ; Barbieri, Sonia ; Bianchi, Siro ; Marsh, Kevin ; Thathy, Vandana ; Corti, Davide ; Sallusto, Federica ; Bull, Peter ; Lanzavecchia, Antonio

In: Nature, 2016, vol. 529, p. 25 p

Plasmodium falciparum antigens expressed on the surface of infected erythrocytes are important targets of naturally acquired immunity against malaria, but their high number and variability provide the pathogen with a powerful means of escape from host antibodies1,2,3,4. Although broadly reactive antibodies against these antigens could be useful as therapeutics and in vaccine design, their...

Université de Fribourg

γδ T cells kill Plasmodium falciparum in a granzyme- and granulysin-dependent mechanism during the late blood stage

Hernández-Castañeda, Maria Andrea ; Happ, Katharina ; Cattalani, Filippo ; Wallimann, Alexandra ; Blanchard, Marianne ; Fellay, Isabelle ; Scolari, Brigitte ; Lannes, Nils ; Mbagwu, Smart Ikechukwu ; Fellay, Benoît ; Filgueira, Luis ; Mantel, Pierre-Yves ; Walch, Michael

In: The Journal of Immunology, 2020, vol. 204, no. 7, p. 1798–1809

Plasmodium spp., the causative agent of malaria, have a complex life cycle. The exponential growth of the parasites during the blood stage is responsible for almost all malaria-associated morbidity and mortality. Therefore, tight immune control of the intraerythrocytic replication of the parasite is essential to prevent clinical malaria. Despite evidence that the particular lymphocyte subset ...

Université de Fribourg

Evaluation of extracellular vesicle function during malaria infection

Andrea Hernández-Castañeda, María ; Mbagwu, Smart Ikechukwu ; Babatunde, Kehinde Adebayo ; Walch, Michael ; Filgueira, Luis ; Mantel, Pierre-Yves

In: JoVE (Journal of Visualized Experiments), 2018, no. 132, p. e57067

Malaria is a life-threatening disease caused by Plasmodium parasites, with P. falciparum being the most prevalent on the African continent and responsible for most malaria-related deaths globally. Several factors including parasite sequestration in tissues, vascular dysfunction, and inflammatory responses influence the evolution of the disease in malaria-infected people. P. falciparum-infected...