| Literature DB >> 26089353 |
Rogier W Sanders1, Marit J van Gils2, Ronald Derking2, Devin Sok3, Thomas J Ketas4, Judith A Burger2, Gabriel Ozorowski5, Albert Cupo4, Cassandra Simonich6, Leslie Goo6, Heather Arendt7, Helen J Kim5, Jeong Hyun Lee5, Pavel Pugach4, Melissa Williams4, Gargi Debnath4, Brian Moldt3, Mariëlle J van Breemen2, Gözde Isik2, Max Medina-Ramírez2, Jaap Willem Back8, Wayne C Koff7, Jean-Philippe Julien5, Eva G Rakasz9, Michael S Seaman10, Miklos Guttman11, Kelly K Lee11, Per Johan Klasse4, Celia LaBranche12, William R Schief13, Ian A Wilson14, Julie Overbaugh6, Dennis R Burton15, Andrew B Ward5, David C Montefiori12, Hansi Dean7, John P Moore16.
Abstract
A challenge for HIV-1 immunogen design is the difficulty of inducing neutralizing antibodies (NAbs) against neutralization-resistant (tier 2) viruses that dominate human transmissions. We show that a soluble recombinant HIV-1 envelope glycoprotein trimer that adopts a native conformation, BG505 SOSIP.664, induced NAbs potently against the sequence-matched tier 2 virus in rabbits and similar but weaker responses in macaques. The trimer also consistently induced cross-reactive NAbs against more sensitive (tier 1) viruses. Tier 2 NAbs recognized conformational epitopes that differed between animals and in some cases overlapped with those recognized by broadly neutralizing antibodies (bNAbs), whereas tier 1 responses targeted linear V3 epitopes. A second trimer, B41 SOSIP.664, also induced a strong autologous tier 2 NAb response in rabbits. Thus, native-like trimers represent a promising starting point for the development of HIV-1 vaccines aimed at inducing bNAbs.Entities:
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Year: 2015 PMID: 26089353 PMCID: PMC4498988 DOI: 10.1126/science.aac4223
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728