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Università della Svizzera italiana

Structural basis for broad HIV-1 neutralization by the MPER-specific human broadly neutralizing antibody LN01

Pinto, Dora ; Fenwick, Craig ; Caillat, Christophe ; Silacci, Chiara ; Guseva, Serafima ; Dehez, François ; Chipot, Christophe ; Barbieri, Sonia ; Minola, Andrea ; Jarrossay, David ; Tomaras, Georgia D. ; Shen, Xiaoying ; Riva, Agostino ; Tarkowski, Maciej ; Schwartz, Olivier ; Bruel, Timothée ; Dufloo, Jérémy ; Seaman, Michael S. ; Montefiori, David C. ; Lanzavecchia, Antonio ; Corti, Davide ; Pantaleo, Giuseppe ; Weissenhorn, Winfried

In: Cell host & microbe, 2019, vol. 26, no. 5, p. p. 623-637.e8

Potent and broadly neutralizing antibodies (bnAbs) are the hallmark of HIV-1 protection by vaccination. The membrane-proximal external region (MPER) of the HIV-1 gp41 fusion protein is targeted by the most broadly reactive HIV-1 neutralizing antibodies. Here, we examine the structural and molecular mechansims of neutralization by anti-MPER bnAb, LN01, which was isolated from lymph-node-derived...

Università della Svizzera italiana

Systems analysis of MVA-C induced immune response reveals its significance as a vaccine candidate against HIV/AIDS of clade C

Gómez, Carmen Elena ; Perdiguero, Beatriz ; Jiménez, Victoria ; Filali-Mouhim, Abdelali ; Ghneim, Khader ; Haddad, Elias K. ; Quakkerlaar, Esther D. ; Delaloye, Julie ; Harari, Alexandre ; Roger, Thierry ; Dunhen, Thomas ; Sékaly, Rafick P. ; Melief, Cornelis J. M. ; Calandra, Thierry ; Sallusto, Federica ; Lanzavecchia, Antonio ; Wagner, Ralf ; Pantaleo, Giuseppe ; Esteban, Mariano

In: Plos one, 2012, vol. 7, no. 4, p. e35485

Based on the partial efficacy of the HIV/AIDS Thai trial (RV144) with a canarypox vector prime and protein boost, attenuated poxvirus recombinants expressing HIV-1 antigens are increasingly sought as vaccine candidates against HIV/AIDS. Here we describe using systems analysis the biological and immunological characteristics of the attenuated vaccinia virus Ankara strain expressing the HIV-1...

Università della Svizzera italiana

Improved innate and adaptive immunostimulation by genetically modified HIV-1 protein expressing NYVAC vectors

Quakkelaar, Esther D. ; Redeker, Anke ; Haddad, Elias K. ; Harari, Alexandre ; McCaughey, Stella Mayo ; Duhen, Thomas ; Filali-Mouhim, Abdelali ; Goulet, Jean-Philippe ; Loof, Nikki M. ; Ossendorp, Ferry ; Perdiguero, Beatriz ; Heinen, Paul ; Gomez, Carmen E. ; Kibler, Karen V. ; Koelle, David M. ; Sékaly, Rafick P. ; Sallusto, Federica ; Lanzavecchia, Antonio ; Pantaleo, Giuseppe ; Esteban, Mariano ; Tartaglia, Jim ; Jacobs, Bertram L. ; Melief, Cornelis J. M.

In: Plos one, 2011, vol. 6, no. 2, p. e16819

Attenuated poxviruses are safe and capable of expressing foreign antigens. Poxviruses are applied in veterinary vaccination and explored as candidate vaccines for humans. However, poxviruses express multiple genes encoding proteins that interfere with components of the innate and adaptive immune response. This manuscript describes two strategies aimed to improve the immunogenicity of the...