Enhancing and shaping the immunogenicity of native-like HIV-1 envelope trimers with a two-component protein nanoparticle
Enhancing and shaping the immunogenicity of native-like HIV-1 envelope trimers with a two-component protein nanoparticle
The development of native-like HIV-1 envelope (Env) trimer antigens has enabled the induction of neutralizing antibody (NAb) responses against neutralization-resistant HIV-1 strains in animal models. However, NAb responses are relatively weak and narrow in specificity. Displaying antigens in a multivalent fashion on nanoparticles (NPs) is an established strategy to increase their immunogenicity. Here we present the design and characterization of two-component protein NPs displaying 20 stabilized SOSIP trimers from various HIV-1 strains. The two-component nature permits the incorporation of exclusively well-folded, native-like Env trimers into NPs that self-assemble in vitro with high efficiency. Immunization studies show that the NPs are particularly efficacious as priming immunogens, improve the quality of the Ab response over a conventional one-component nanoparticle system, and are most effective when SOSIP trimers with an apex-proximate neutralizing epitope are displayed. Their ability to enhance and shape the immunogenicity of SOSIP trimers make these NPs a promising immunogen platform.
Brouwer, Philip J.M.
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Antanasijevic, Aleksandar
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Berndsen, Zachary
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Yasmeen, Anila
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Fiala, Brooke
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Bijl, Tom P.L.
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Bontjer, Ilja
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Bale, Jacob B.
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Sheffler, William
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Allen, Joel D.
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Schorcht, Anna
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Burger, Judith A.
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Camacho, Miguel
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Ellis, Daniel
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Cottrell, Christopher A.
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Behrens, Anna-Janina
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Catalano, Marco
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Del Moral-Sánchez, Iván
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Ketas, Thomas J.
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LaBranche, Celia
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van Gils, Marit J.
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Sliepen, Kwinten
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Stewart, Lance J.
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Crispin, Max
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Montefiori, David C.
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Baker, David
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Ward, Andrew B.
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Sanders, Rogier W.
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Brouwer, Philip J.M.
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Antanasijevic, Aleksandar
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Berndsen, Zachary
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Yasmeen, Anila
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Fiala, Brooke
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Bijl, Tom P.L.
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Bontjer, Ilja
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Bale, Jacob B.
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Sheffler, William
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Allen, Joel D.
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Schorcht, Anna
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Burger, Judith A.
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Camacho, Miguel
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Ellis, Daniel
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Cottrell, Christopher A.
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Behrens, Anna-Janina
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Catalano, Marco
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Del Moral-Sánchez, Iván
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Ketas, Thomas J.
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LaBranche, Celia
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van Gils, Marit J.
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Sliepen, Kwinten
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Stewart, Lance J.
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Crispin, Max
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Montefiori, David C.
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Baker, David
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Moore, John P.
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Klasse, Per Johan
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