G. Ozorowski

HIV envelope trimers and gp120 as immunogens to induce broadly neutralizing antibodies in cows

This study investigates whether engineering HIV Env trimers or using gp120 can induce broadly neutralizing antibodies in cows, finding that trimers are more effective than monomeric gp120.

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.

Germline-targeting SOSIP trimer immunization elicits precursor CD4 binding-site targeting broadly neutralizing antibodies in infant macaques.

This study shows that a multi-dose immunization with germline-targeting SOSIP vaccines induces precursor broadly neutralizing antibodies in infant macaques, similar to adult responses.

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.

Triple tandem trimer immunogens for HIV-1 and influenza nucleic acid-based vaccines

The paper introduces a triple tandem trimer (TTT) design for HIV-1 Env and influenza HA immunogens, showing improved trimer-specific immune responses in viral vectored vaccines.

Glycan heterogeneity as a cause of the persistent fraction in HIV-1 neutralization

This study investigates how glycan heterogeneity on HIV-1 Env contributes to persistent infectivity despite neutralizing antibody (NAb) treatment, showing that glycan variants affect antibody binding and neutralization efficacy.

Focusing antibody responses to the fusion peptide in rhesusmacaques

This study uses continuous immunogen delivery in rhesus macaques to focus antibody responses on the HIV fusion peptide, identifying key residues for vaccine design.

Site of vulnerability on SARS-CoV-2 spike induces broadly protective antibody to antigenically distinct omicron SARS-CoV-2 subvariants

This paper identifies a broadly neutralizing antibody against SARS-CoV-2 that targets the receptor-binding site and remains effective against multiple Omicron subvariants.

Broad SARS-CoV-2 Neutralization by Monoclonal and Bispecific Antibodies Derived from a Gamma-infected Individual

This study identifies broadly neutralizing monoclonal and bispecific antibodies from a Gamma variant-infected individual that effectively neutralize multiple SARS-CoV-2 variants.

Structural insights of a highly potent pan-neutralizing SARS-CoV-2 human monoclonal antibody

The paper evaluates the potency of mAb J08 against SARS-CoV-2 variants using cell-based assays and cryo-EM, showing its resistance to escape mutations and broad binding capability.

CD4 binding-site antibodies induced by a subtype B HIV-1 envelope trimer

This study shows that immunization with native-like HIV-1 subtype B Env trimers can induce CD4bs-directed broadly neutralizing antibodies in rabbits.

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.

Long-lasting germinal center responses to a priming immunization with continuous proliferation and somatic mutation

This study shows that germinal center B cells can persist and continue to mutate for 29 weeks after a single immunization, leading to long-lasting antibody responses.

Changes at V2 apex of HIV-1 Clade C trimer enhance elicitation of autologous neutralizing and broad V1V2-scaffold antibodies

From Structure to Sequence: Identification of polyclonal antibody families using cryoEM

This paper uses cryoEM and next-generation sequencing to identify monoclonal antibodies from polyclonal sera and validate their antigen-binding properties.

Elicitation of potent serum neutralizing antibody responses in rabbits by immunization with an HIV-1 clade C trimeric Env derived from an Indian elite neutralizer

This study shows that immunization with a thermostable HIV-1 clade C Env trimer induces potent autologous neutralizing antibodies in rabbits, with distinct epitope specificity compared to natural infection.

Isolation and Characterization of Cross-Neutralizing Coronavirus Antibodies from COVID-19+ Subjects

The paper isolates and characterizes cross-neutralizing antibodies from COVID-19 patients, identifying antibodies that neutralize both SARS-CoV-1 and SARS-CoV-2, including variants.

Neutralizing antibodies induced by first-generation gp41-stabilized HIV-1 envelope trimers and nanoparticles

This study isolates HIV-1 neutralizing antibodies from mice and rabbits immunized with gp41-stabilized trimers and nanoparticles, showing they target different epitopes and elicit Env-dependent breadth.

Immunofocusing and enhancing autologous Tier-2 HIV-1 neutralization by displaying Env trimers on two-component protein nanoparticles

This study shows that displaying HIV-1 Env trimers on two-component protein nanoparticles enhances autologous Tier-2 neutralizing antibody titers in rabbits.

Single-component multilayered self-assembling nanoparticles presenting rationally designed glycoprotein trimers as Ebola virus vaccines

This study designs and tests Ebola virus vaccines using stabilized GP trimers displayed on nanoparticles, showing they induce neutralizing antibodies and enhance infection.

Structural analysis of full-length SARS-CoV-2 spike protein from an advanced vaccine candidate

The paper uses cryo-EM and glycan analysis to study the structure of a full-length SARS-CoV-2 spike protein in a vaccine candidate, revealing its stable prefusion conformation and novel trimer interactions.

Enhancing glycan occupancy of soluble HIV-1 envelope trimers to mimic the native viral spike

The paper modifies HIV-1 Env trimers to increase glycan occupancy and reduce artificial glycan holes, improving vaccine antigen design.

A strain-specific inhibitor of receptor-bound HIV-1 targets a pocket near the fusion peptide and offers a template for drug design

The paper identifies a strain-specific HIV-1 inhibitor targeting a pocket near the fusion peptide, demonstrating small molecules can disrupt viral fusion and offering a template for drug design.

Mapping the immunogenic landscape of near-native HIV-1 envelope trimers in non-human primates

This study maps antibody responses to HIV-1 envelope trimers in non-human primates, identifying strain-specific and conserved epitopes recognized by vaccine-induced antibodies.

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.

HIV-1 vaccine design through minimizing envelope metastability

This paper demonstrates that gp41ECTO is the main source of HIV-1 envelope metastability and shows that stabilizing it improves nanoparticle assembly and induces more effective tier 2 neutralizing antibodies.