Immunization for HIV-1 Broadly Neutralizing Antibodies in Human Ig Knockin Mice.

TitleImmunization for HIV-1 Broadly Neutralizing Antibodies in Human Ig Knockin Mice.
Publication TypeJournal Article
Year of Publication2015
AuthorsDosenovic P, von Boehmer L, Escolano A, Jardine J, Freund NT, Gitlin AD, McGuire AT, Kulp DW, Oliveira T, Scharf L, Pietzsch J, Gray MD, Cupo A, van Gils MJ, Yao K-H, Liu C, Gazumyan A, Seaman MS, Bjorkman PJ, Sanders RW, Moore JP, Stamatatos L, Schief WR, Nussenzweig MC
JournalCell
Volume161
Issue7
Pagination1505-15
Date Published06/18/2015
ISSN1097-4172
Abstract

A subset of individuals infected with HIV-1 develops broadly neutralizing antibodies (bNAbs) that can prevent infection, but it has not yet been possible to elicit these antibodies by immunization. To systematically explore how immunization might be tailored to produce them, we generated mice expressing the predicted germline or mature heavy chains of a potent bNAb to the CD4 binding site (CD4bs) on the HIV-1 envelope glycoprotein (Env). Immunogens specifically designed to activate B cells bearing germline antibodies are required to initiate immune responses, but they do not elicit bNAbs. In contrast, native-like Env trimers fail to activate B cells expressing germline antibodies but elicit bNAbs by selecting for a restricted group of light chains bearing specific somatic mutations that enhance neutralizing activity. The data suggest that vaccination to elicit anti-HIV-1 antibodies will require immunization with a succession of related immunogens.

DOI10.1016/j.cell.2015.06.003
Alternate JournalCell
PubMed ID26091035
Grant ListP01 AI094419 / AI / NIAID NIH HHS / United States
U19 AI109632 / AI / NIAID NIH HHS / United States
UM1 AI100663 / AI / NIAID NIH HHS / United States
CHAVI-ID: 
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