Y. Tsybovsky

Vaccine-elicited and naturally elicited antibodies differ in their recognition of the HIV-1 fusion peptide

This study compares vaccine-elicited and naturally elicited antibodies' recognition of HIV-1 fusion peptide sequences, finding that naturally elicited antibodies show greater tolerance to sequence variation.

Antigen spacing on protein nanoparticles influences antibody responses to vaccination

This study shows that antigen spacing on protein nanoparticles affects antibody responses to vaccination, with decreased spacing improving hemagglutination inhibition and neutralization potency.

Breathing and Tilting: Mesoscale simulations illuminate influenza glycoprotein vulnerabilities

This study uses mesoscale simulations to analyze the dynamics of influenza glycoproteins, revealing new antigenic states and a vulnerability site in neuraminidase.

Potent and pan-neutralization of SARS-CoV-2 variants of concern by DARPins

This paper reports the development of two DARPins, FSR16m and FSR22, that potently neutralize SARS-CoV-2 variants, including emerging ones, with efficacy comparable to therapeutic antibodies.

Prefusion-Stabilized Lassa Virus Trimer Identifies Neutralizing Nanobodies and Reveals an Apex-Situated Site of Vulnerability

This paper develops a prefusion-stabilized Lassa virus GPC, identifies a neutralizing nanobody, and reveals a cleavage-dependent site of vulnerability at the trimer apex.

Vaccine-elicitation of cross-group neutralizing protective antibodies to influenza A viruses

This study shows that co-immunization with stem immunogens from group 1 and 2 influenza A HAs elicits cross-group neutralizing antibodies and protective immunity in multiple animal models.

Vaccine-elicited murine antibody WS6 neutralizes diverse beta-coronaviruses by recognizing a helical stem supersite of vulnerability

This paper identifies an antibody, WS6, from a mouse immunized with SARS-CoV-2 spike mRNA, which neutralizes diverse beta-coronaviruses by targeting a conserved helical epitope on the S2 subunit.

Molecular probes of spike ectodomain and its subdomains for SARS-CoV-2 variants, Alpha through Omicron

The paper designs and produces molecular probes for SARS-CoV-2 variants to assess immune responses and isolate neutralizing antibodies.

Structural basis for potent antibody neutralization of SARS-CoV-2 variants including B.1.1.529

The paper identifies potent monoclonal antibodies that neutralize the B.1.1.529 SARS-CoV-2 variant and reveals structural mechanisms enabling their effectiveness.

Augmenting Neutralization breadth against Diverse HIV-1 by increasing the Ab-Ag interface on V2

This study identifies a lineage of antibodies from infected rhesus macaques that neutralize 54% of HIV-1 strains by expanding the antibody-Env interface around the V2 loop.

Engineering well-expressed, V2-immunofocusing HIV-1 envelope glycoprotein membrane trimers for use in heterologous prime-boost vaccine regimens

This paper engineers HIV-1 envelope trimers with enhanced V2 and fusion peptide neutralization sensitivity for vaccine development.

Structure-based design of stabilized recombinant influenza neuraminidase tetramers

This study designs stabilized recombinant influenza neuraminidase tetramers by uncovering structural principles and improving thermal stability and antibody affinity.

Multimeric nanobodies from camelid engineered mice and llamas potently neutralize SARS-CoV-2 variants

This paper isolates and characterizes nanobodies from camelids and engineered mice that neutralize SARS-CoV-2 variants through conserved epitopes and multimeric avidity.

Antibodies with potent and broad neutralizing activity against antigenically diverse and highly transmissible SARS-CoV-2 variants

The paper identifies ultrapotent antibodies from convalescent donors that neutralize SARS-CoV-2 variants and reduce escape mutant generation.

Paired heavy and light chain signatures contribute to potent SARS-CoV-2 neutralization in public antibody responses

This study identifies a public antibody class, IGHV3-53/3-66, with potent SARS-CoV-2 neutralization capabilities through paired heavy and light chain interactions.

Cryo-EM Structures Delineate a pH-Dependent Switch that Mediates Endosomal Positioning of SARS-CoV-2 Spike Receptor-Binding Domains

This paper uses cryo-EM to show how SARS-CoV-2 spike protein undergoes pH-dependent structural changes that affect ACE2 binding and antibody evasion.

Structure-Based Design with Tag-Based Purification and In-Process Biotinylation Enable Streamlined Development of SARS-CoV-2 Spike Molecular Probes

The paper develops biotin-labeled SARS-CoV-2 spike molecular probes using structure-based design and purification methods, achieving high yields and enabling antibody characterization.

A Platform Incorporating Trimeric Antigens into Self-Assembling Nanoparticles Reveals SARS-CoV-2-Spike Nanoparticles to Elicit Substantially Higher Neutralizing Responses than Spike Alone

This paper develops a nanoparticle platform for displaying trimeric antigens, showing that SARS-CoV-2 spike-LuS nanoparticles induce 25-fold higher neutralizing responses than spike alone.

A comprehensive influenza reporter virus panel for high-throughput deep profiling of neutralizing antibodies

The paper develops a fluorescent reporter virus panel to enable high-throughput neutralization profiling of influenza antibodies without requiring high-containment labs.

Design of nanoparticulate group 2 influenza hemagglutinin stem antigens that activate unmutated ancestor B cell receptors of broadly neutralizing antibody lineages

This study designs nanoparticle-based influenza HA stem antigens that activate unmutated B cell receptors of broadly neutralizing antibodies, potentially enabling cross-group immunity.

Epitope-based vaccine design yields fusion peptide-directed antibodies that neutralize diverse strains of HIV-1

This study shows that targeting the HIV-1 fusion peptide with specific immunogens induces cross-clade neutralizing antibodies in animals.