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Title: Improving the Immunogenicity of Native-like HIV-1 Envelope Trimers by Hyperstabilization

Journal Article · · Cell Reports
 [1];  [2];  [1];  [3];  [4];  [5];  [6];  [6];  [7];  [1];  [1];  [1];  [8];  [8];  [8];  [5];  [5];  [1];  [1];  [9] more »;  [9];  [7];  [6];  [8];  [4];  [8];  [5];  [5];  [10] « less
  1. Univ. of Amsterdam (Netherlands)
  2. The Scripps Research Inst., La Jolla, CA (United States); The Hospital for Sick Children Research Inst., Toronto, ON (Canada); Univ. of Toronto, ON (Canada)
  3. The Scripps Research Inst., La Jolla, CA (United States); Amgen, Inc., Thousand Oaks, CA (United States)
  4. Univ. of Washington, Seattle, WA (United States)
  5. The Scripps Research Inst., La Jolla, CA (United States)
  6. Univ. of Oxford (United Kingdom)
  7. Univ. of Kansas, Lawrence, KS (United States)
  8. Cornell Univ., Ithaca, NY (United States). Weill Medical College
  9. Duke Univ. Medical Center, Durham, NC (United States)
  10. Univ. of Amsterdam (Netherlands); Cornell Univ., Ithaca, NY (United States). Weill Medical College

The production of native-like recombinant versions of the HIV-1 envelope glycoprotein (Env) trimer requires overcoming the natural flexibility and instability of the complex. The engineered BG505 SOSIP.664 trimer mimics the structure and antigenicity of native Env. Here, we describe how the introduction of new disulfide bonds between the glycoprotein (gp)120 and gp41 subunits of SOSIP trimers of the BG505 and other genotypes improves their stability and antigenicity, reduces their conformational flexibility, and helps maintain them in the unliganded conformation. The resulting next-generation SOSIP.v5 trimers induce strong autologous tier-2 neutralizing antibody (NAb) responses in rabbits. In addition, the BG505 SOSIP.v6 trimers induced weak heterologous NAb responses against a subset of tier-2 viruses that were not elicited by the prototype BG505 SOSIP.664. These stabilization methods can be applied to trimers from multiple genotypes as components of multivalent vaccines aimed at inducing broadly NAbs (bNAbs).

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
Sponsoring Organization:
National Institutes of Health (NIH); The Scripps Research Institute; International AIDS Vaccine Initiative (IAVI); Aids fonds Netherlands; Canadian Institutes of Health Research (CIHR); Netherlands Organization for Scientific Research (NWO); European Research Council (ERC); Collaboration for AIDS Vaccine Discovery (CAVD); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
P01 AI110657; CHAVI-ID UM1 AI100663; 2012041; THA-118628; ERC-StG-2011–280829-SHEV; OPP1084519; OPP1115782; AC02-76SF00515
OSTI ID:
1499807
Journal Information:
Cell Reports, Vol. 20, Issue 8; ISSN 2211-1247
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 105 works
Citation information provided by
Web of Science

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Molecular organization and dynamics of the fusion protein Gc at the hantavirus surface journal June 2019
Optimizing the production and affinity purification of HIV-1 envelope glycoprotein SOSIP trimers from transiently transfected CHO cells journal April 2019
A single, continuous metric to define tiered serum neutralization potency against HIV journal January 2018
The expanding array of HIV broadly neutralizing antibodies journal October 2018
Designing a B Cell-Based Vaccine against a Highly Variable Hepatitis C Virus journal January 2018
Enhancing and shaping the immunogenicity of native-like HIV-1 envelope trimers with a two-component protein nanoparticle journal September 2019
Targeted selection of HIV-specific antibody mutations by engineering B cell maturation journal December 2019
Similarities and differences between native HIV-1 envelope glycoprotein trimers and stabilized soluble trimer mimetics journal July 2019
Structure and immunogenicity of a stabilized HIV-1 envelope trimer based on a group-M consensus sequence journal May 2019
Closing and Opening Holes in the Glycan Shield of HIV-1 Envelope Glycoprotein SOSIP Trimers Can Redirect the Neutralizing Antibody Response to the Newly Unmasked Epitopes journal November 2018
Antibody responses to viral infections: a structural perspective across three different enveloped viruses journal March 2019
Binding of the von Willebrand Factor A Domain of Capillary Morphogenesis Protein 2 to Anthrax Protective Antigen Vaccine Reduces Immunogenicity in Mice journal January 2020
Antibody Responses Elicited by Immunization with BG505 Trimer Immune Complexes journal August 2019
Strategies for inducing effective neutralizing antibody responses against HIV-1 journal November 2019
Capturing the inherent structural dynamics of the HIV-1 envelope glycoprotein fusion peptide journal February 2019
Disruption of the HIV-1 Envelope allosteric network blocks CD4-induced rearrangements journal January 2020
Conformational Engineering of HIV-1 Env Based on Mutational Tolerance in the CD4 and PG16 Bound States journal March 2019
Structural and immunologic correlates of chemically stabilized HIV-1 envelope glycoproteins journal May 2018
Neutralization-guided design of HIV-1 envelope trimers with high affinity for the unmutated common ancestor of CH235 lineage CD4bs broadly neutralizing antibodies journal September 2019
HIV-1 Envelope and MPER Antibody Structures in Lipid Assemblies journal April 2020