R. Andrabi

HIV-1 neutralizing antibodies in SHIV-infected macaques recapitulate structurally divergent modes of human V2 apex recognition with a single D gene

This study isolates and characterizes V2 apex-directed neutralizing antibodies from SHIV-infected macaques, revealing structural and genetic features that enable broad neutralization.

Immunization of cows with HIV envelope trimers generates broadly neutralizing antibodies to the V2-apex from the ultralong CDRH3 repertoire

This study immunized cows with HIV Env trimers to generate broadly neutralizing antibodies targeting the V2-apex, revealing ultralong CDRH3 antibodies outcompete shorter ones in the response.

Potent antibody-dependent cellular cytotoxicity of a V2-specific antibody is not sufficient for protection of macaques against SIV challenge

This study shows that potent antibody-dependent cellular cytotoxicity (ADCC) by a V2-specific antibody is insufficient to protect macaques against SIV challenge, but reduced viral loads were observed with a neutralization-sensitive SIV variant.

Germline-targeting chimpanzee SIV Envelopes induce V2-apex broadly neutralizing-like B cell precursors in a rhesus macaque infection model

This study shows that germline-targeting SCIVs can activate and expand B cells expressing V2-apex bnAb-like precursors in rhesus macaques.

Broad-Spectrum Heavily Mutated Monoclonal Antibody Isolated from COVID-19 Convalescent Vaccinee with Capacity to Neutralize SARS-CoV2 Variants Ranging from B.1 to BQ.1.1

The paper isolates and characterizes Acovimab, a broadly neutralizing monoclonal antibody against SARS-CoV-2 variants, showing potent neutralization against most variants except XBB.1.5 and synergistic activity with Sotrovimab.

Broadly neutralizing antibodies targeting a conserved silent face of spike RBD resist extreme SARS-CoV-2 antigenic drift

The paper identifies broadly neutralizing antibodies against SARS-CoV-2 that target conserved regions on the spike RBD, showing resistance to antigenic drift and suggesting potential vaccine targets.

Deep repertoire mining uncovers ultra-broad coronavirus neutralizing antibodies targeting multiple epitopes

The paper identifies two broadly neutralizing antibodies against coronaviruses by screening B cell repertoires, showing they target different epitopes and offer protection against variants.

A germline-targeting chimpanzee SIV envelope glycoprotein elicits a new class of V2-apex directed cross-neutralizing antibodies

This study identifies a new class of V2-directed cross-neutralizing antibodies targeting a cryptic epitope in occluded-open HIV and SIV Env trimers.

A pseudovirus system enables deep mutational scanning of the full SARS-CoV-2 spike

This paper introduces a pseudovirus system for deep mutational scanning of SARS-CoV-2 spike protein mutations, showing how they affect antibody neutralization and infection.

High-throughput identification of prefusion-stabilizing mutations in SARS-CoV-2 spike

The paper identifies mutations that stabilize the prefusion conformation of SARS-CoV-2 spike while improving expression, using a combination of fluorescence-based assays, cell display, and deep mutational scanning.

Evolution of antibody immunity following Omicron BA.1 breakthrough infection

This study tracks antibody responses six months after Omicron BA.1 breakthrough infection and finds reduced neutralizing antibodies and memory B cells, with public clones dominating and predicting new sublineages.

The diversity of the glycan shield of sarbecoviruses closely related to SARS-CoV-2

This study compares the glycan shields of sarbecoviruses to understand how sequence variations affect their structure and potential for antibody neutralization.

Probing the biophysical constraints of SARS-CoV-2 spike N-terminal domain using deep mutational scanning

This study quantifies the effects of NTD mutations on S protein expression and identifies mutations that enhance expression without altering antigenicity.

A broad and potent neutralization epitope in SARS-related coronaviruses

The paper identifies a broadly neutralizing epitope in SARS-related coronaviruses that is effective against variants, including Omicron, and suggests its use for universal vaccine design.

Broadly neutralizing anti-S2 antibodies protect against all three human betacoronaviruses that cause severe disease

The paper identifies broadly neutralizing antibodies targeting the S2 region of betacoronavirus spikes that protect against SARS-CoV-1, SARS-CoV-2, and MERS-CoV.

Engineering SARS-CoV-2 neutralizing antibodies for increased potency and reduced viral escape

This study engineers SARS-CoV-2 neutralizing antibodies through directed evolution to enhance their potency and reduce viral escape.

Molecular insights into antibody-mediated protection against the prototypic simian immunodeficiency virus

This study identifies nAbs against SIVmac239, reveals structural features of its Env trimer, and shows passive transfer of nAbs protects macaques from infection.

A recurring YYDRxG pattern in broadly neutralizing antibodies to a conserved site on SARS-CoV-2, variants of concern, and related viruses

The paper identifies a YYDRxG motif in antibodies that broadly neutralize SARS-CoV-2 variants and related viruses, suggesting a conserved epitope targeting strategy.

Targeted isolation of panels of diverse human protective broadly neutralizing antibodies against SARS-like viruses

This study isolates a panel of broadly neutralizing antibodies against SARS-like viruses from donors, showing effectiveness against multiple variants including Omicron.

Structural definition of a pan-sarbecovirus neutralizing epitope on the spike S2 subunit.

This paper identifies a conserved neutralizing epitope on the spike S2 subunit of sarbecoviruses, demonstrating cross-neutralization against multiple variants and a bat coronavirus.

Broadly neutralizing antibodies to SARS-related viruses can be readily induced in rhesus macaques

This study shows that rhesus macaques can be immunized to produce broadly neutralizing antibodies against multiple SARS-related viruses, highlighting differences in B cell repertoires between humans and macaques.

A human antibody reveals a conserved site on beta-coronavirus spike proteins and confers protection against SARS-CoV-2 infection

This study identifies a broadly neutralizing antibody that targets a conserved site on beta-coronavirus spike proteins and provides protection against SARS-CoV-2 infection.

Site-specific steric control of SARS-CoV-2 spike glycosylation

The paper compares glycosylation patterns of recombinant SARS-CoV-2 spike proteins across labs with infectious virus S protein, finding conserved site-specific glycan maturation stalling linked to protein structure.

Disassembly of HIV envelope glycoprotein trimer immunogens is driven by antibodies elicited via immunization

This study shows that off-target antibodies from HIV trimer vaccines cause trimer disassembly, exposing more off-target epitopes and driving further off-target immune responses.

Cross-reactive serum and memory B cell responses to spike protein in SARS-CoV-2 and endemic coronavirus infection

The paper examines cross-reactive serum and memory B cell responses to SARS-CoV-2 and endemic coronaviruses, finding weak serum cross-reactivity but stronger memory B cell cross-reactivity.

Rapid isolation of potent SARS-CoV-2 neutralizing antibodies and protection in a small animal model

This study rapidly identifies potent SARS-CoV-2 neutralizing antibodies and demonstrates their protective efficacy in an animal model.

HIV Envelope Trimer-Elicited Autologous Neutralizing Antibodies Bind a Region Overlapping the N332 Glycan Supersite

The paper identifies monoclonal antibodies from rabbits that bind an epitope overlapping the N332 glycan supersite but not the glycan hole, suggesting strain-specific responses may interfere with broadly neutralizing antibodies.

Neutralizing antibody responses to an HIV envelope glycan hole are not easily broadened

This study shows that immunization with B41 and BG505 SOSIP trimer immunogens in rabbits induces distinct autologous neutralizing antibody lineages targeting overlapping glycan hole epitopes, but broadening reactivity remains challenging.

Chimpanzee SIV Envelope trimer: structure and deployment as an HIV vaccine template

The paper describes the structure of a chimpanzee SIV Env trimer and shows it induces HIV V2-specific neutralizing antibodies in mice.

Reprogramming the antigen specificity of B cells using genome-editing technologies

This study reprograms B cells to express HIV-specific BCRs by editing immunoglobulin genes with CRISPR-Cas9, enabling improved anti-HIV neutralizing activity.