Rational Design of Envelope Identifies Broadly Neutralizing Human Monoclonal Antibodies to HIV-1
Xueling Wu,Zhi Yong Yang,Yuxing Li,Carl Magnus Hogerkorp,William R. Schief,Michael S. Seaman,Tongqing Zhou,Stephen D. Schmidt,Lan Wu,Ling Xu,Nancy S. Longo,Krisha McKee,Sijy O'Dell,Mark K. Louder,Diane Wycuff,Yu Feng,Martha Nason,Nicole A. Doria-Rose,Mark Connors,Peter D. Kwong,Mario Roederer,Richard T. Wyatt,Gary J. Nabel,John R. Mascola +23 more
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TLDR
Three broadly neutralizing antibodies are identified, isolated from an HIV-1–infected individual, that exhibited great breadth and potency of neutralization and were specific for the co-receptor CD4-binding site of the glycoprotein 120 (gp120), part of the viral Env spike.Abstract:
Cross-reactive neutralizing antibodies (NAbs) are found in the sera of many HIV-1-infected individuals, but the virologic basis of their neutralization remains poorly understood. We used knowledge of HIV-1 envelope structure to develop antigenically resurfaced glycoproteins specific for the structurally conserved site of initial CD4 receptor binding. These probes were used to identify sera with NAbs to the CD4-binding site (CD4bs) and to isolate individual B cells from such an HIV-1-infected donor. By expressing immunoglobulin genes from individual cells, we identified three monoclonal antibodies, including a pair of somatic variants that neutralized over 90% of circulating HIV-1 isolates. Exceptionally broad HIV-1 neutralization can be achieved with individual antibodies targeted to the functionally conserved CD4bs of glycoprotein 120, an important insight for future HIV-1 vaccine design.read more
Citations
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Optimization of the Solubility of HIV-1-Neutralizing Antibody 10E8 through Somatic Variation and Structure-Based Design
Young Do Kwon,Ivelin S. Georgiev,Gilad Ofek,Baoshan Zhang,Mangaiarkarasi Asokan,Robert T. Bailer,Amy Bao,William Caruso,Xuejun Chen,Misook Choe,Aliaksandr Druz,Sung-Youl Ko,Mark K. Louder,Krisha McKee,Sijy O'Dell,Amarendra Pegu,Rebecca S. Rudicell,Wei Shi,Keyun Wang,Yongping Yang,Mandy Alger,Michael F. Bender,Kevin Carlton,Jonathan W. Cooper,Julie Blinn,Joshua Eudailey,Krissey E. Lloyd,Robert Parks,S. Munir Alam,Barton F. Haynes,Neal N. Padte,Jian Yu,David D. Ho,Jinghe Huang,Mark Connors,Richard M. Schwartz,John R. Mascola,Peter D. Kwong +37 more
TL;DR: Variants of 10E8 are created which retained the potency and extraordinary neutralization breadth of the parent 10E9 but with substantially increased solubility, and may be suitable for manufacturing.
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Subdominance and poor intrinsic immunogenicity limit humoral immunity targeting influenza HA stem
Hyon-Xhi Tan,Sinthujan Jegaskanda,Jennifer A Juno,Robyn Esterbauer,Julius Wong,Hannah G. Kelly,Yi Liu,Danielle Tilmanis,Aeron C. Hurt,Jonathan W. Yewdell,Stephen J. Kent,Stephen J. Kent,Stephen J. Kent,Adam K. Wheatley +13 more
TL;DR: It is confirmed that currently licensed seasonal influenza vaccines can boost preexisting memory responses against theHA stem in humans and an increased understanding of the immune dynamics surrounding the HA stem is essential to inform the design of next-generation influenza vaccines for broad and durable protection.
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Isolation of antibody V(D)J sequences from single cell sorted rhesus macaque B cells.
TL;DR: The design and testing of a new set of rhesus-specific primers that enable efficient and specific amplification of heavy, kappa and lambda V(D)J genes from single sorted B cells are described.
BookDOI
Chimpanzees in Biomedical and Behavioral Research: Assessing the Necessity
TL;DR: An in-depth analysis of the scientific necessity of chimpanzees for NIH-funded biomedical and behavioral research concluded that chimpanzees are necessary for research discoveries and to gauge the safety and efficacy of new medicines.
Journal ArticleDOI
Structural Survey of Broadly Neutralizing Antibodies Targeting the HIV-1 Env Trimer Delineates Epitope Categories and Characteristics of Recognition
Gwo-Yu Chuang,Jing Zhou,Priyamvada Acharya,Reda Rawi,Chen-Hsiang Shen,Zizhang Sheng,Baoshan Zhang,Tongqing Zhou,Robert T. Bailer,Venkata P. Dandey,Nicole A. Doria-Rose,Mark K. Louder,Krisha McKee,John R. Mascola,Lawrence Shapiro,Lawrence Shapiro,Peter D. Kwong,Peter D. Kwong +17 more
TL;DR: The unusual characteristics of epitope and paratope delineated here are likely to reflect respectively virus-immune evasion and antibody-recognition solutions that allow effective neutralization of HIV-1.
References
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Journal ArticleDOI
Structure of an HIV gp120 envelope glycoprotein in complex with the CD4 receptor and a neutralizing human antibody
Peter D. Kwong,Richard T. Wyatt,James E. Robinson,Raymond W. Sweet,Joseph Sodroski,Wayne A. Hendrickson,Wayne A. Hendrickson +6 more
TL;DR: The structure reveals a cavity-laden CD4–gp120 interface, a conserved binding site for the chemokine receptor, evidence for a conformational change upon CD4 binding, the nature of a CD4-induced antibody epitope, and specific mechanisms for immune evasion.
Journal ArticleDOI
Identification and characterization of transmitted and early founder virus envelopes in primary HIV-1 infection
Brandon F. Keele,Elena E. Giorgi,Elena E. Giorgi,Jesus F. Salazar-Gonzalez,Julie M. Decker,Kimmy T. Pham,Maria G. Salazar,Chuanxi Sun,Truman Grayson,Shuyi Wang,Hui Li,Xiping Wei,Chunlai Jiang,Jennifer L. Kirchherr,Feng Gao,Jeffery A. Anderson,Li Hua Ping,Ronald Swanstrom,Georgia D. Tomaras,William A. Blattner,Paul A. Goepfert,J. Michael Kilby,Michael S. Saag,Eric Delwart,Michael P. Busch,Myron S. Cohen,David C. Montefiori,Barton F. Haynes,Brian Gaschen,Gayathri Athreya,Ha Y. Lee,Natasha T. Wood,Cathal Seoighe,Alan S. Perelson,Tanmoy Bhattacharya,Tanmoy Bhattacharya,Bette T. Korber,Bette T. Korber,Beatrice H. Hahn,George M. Shaw +39 more
TL;DR: A mathematical model of random viral evolution and phylogenetic tree construction is developed and used to analyze 3,449 complete env sequences derived by single genome amplification from 102 subjects with acute HIV-1 (clade B) infection, suggesting a finite window of potential vulnerability of HIV- 1 to vaccine-elicited immune responses, although phenotypic properties of transmitted Envs pose a formidable defense.
Journal ArticleDOI
Broad and potent neutralizing antibodies from an African donor reveal a new HIV-1 vaccine target.
Laura M. Walker,Sanjay Phogat,Po-Ying Chan-Hui,Denise Wagner,Pham Phung,Julie L. Goss,Terri Wrin,Melissa Simek,Steven P. Fling,Jennifer L. Mitcham,Jennifer Lehrman,Frances Priddy,Ole A. Olsen,Steven Frey,Phillip W. Hammond,Protocol G. Principal Investigators,Stephen M. Kaminsky,Timothy J. Zamb,Matthew Moyle,Wayne C. Koff,Pascal Poignard,Dennis R. Burton,Dennis R. Burton +22 more
TL;DR: High-throughput screening has revealed two new broadly neutralizing antibodies from a clade A–infected donor in Africa, which exhibit great potency and are able to neutralize a wide range of viruses from many different clades.
Journal ArticleDOI
Design of a Novel Globular Protein Fold with Atomic-Level Accuracy
TL;DR: A general computational strategy that iterates between sequence design and structure prediction to design a 93-residue α/β protein called Top7 with a novel sequence and topology, found experimentally to be folded and extremely stable.
Journal ArticleDOI
The antigenic structure of the HIV gp120 envelope glycoprotein
Richard T. Wyatt,Peter D. Kwong,Elizabeth Desjardins,Raymond W. Sweet,James E. Robinson,Wayne A. Hendrickson,Joseph Sodroski +6 more
TL;DR: The spatial organization of conserved neutralization epitopes on gp120 is described, using epitope maps in conjunction with the X-ray crystal structure of a ternary complex that includes a gp120 core, CD4 and a neutralizing antibody.
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