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Open AccessJournal ArticleDOI

Influenza virus hemagglutinin stalk-based antibodies and vaccines.

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TLDR
Broadly protective vaccine candidates based on the epitopes of these antibodies, for example, chimeric and headless hemagglutinin structures, are under development and show promising results in animals models, and could be developed into universal influenza virus vaccines that protect from infection with drifted seasonal as well as novel pandemic influenza virus strains therefore obviating the need for annual vaccination, and enhancing pandemic preparedness.
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This article is published in Current Opinion in Virology.The article was published on 2013-10-01 and is currently open access. It has received 301 citations till now. The article focuses on the topics: Influenza A virus & H5N1 genetic structure.

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A Computationally Designed Hemagglutinin Stem-Binding Protein Provides In Vivo Protection from Influenza Independent of a Host Immune Response.

TL;DR: It is shown that intranasal delivery of HB36.6 affords protection in mice lethally challenged with diverse strains of influenza independent of Fc-mediated effector functions or a host antiviral immune response, and the potential of computationally designed binding proteins as a new class of antivirals for influenza is demonstrated.
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Influenza virus-specific antibody dependent cellular cytoxicity induced by vaccination or natural infection

TL;DR: This assay will facilitate the assessment of ADCC mediating serum antibodies after (universal) influenza vaccination or infection and may define ADCC activity as a correlate of (cross-) protection in the future.
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Original antigenic sin priming of influenza virus hemagglutinin stalk antibodies.

TL;DR: The results demonstrate that an individual’s HA stalk antibody response is dependent on the specific subtype of influenza virus that they first encounter early in life, and propose that humans are susceptible to heterosubtypic influenza virus infections later in life.
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Long-Lasting Cross-Protection Against Influenza A by Neuraminidase and M2e-based immunization strategies.

TL;DR: NA- and M2e-based immunity can protect against challenge with (homologous) virus without compromising the induction of robust cross-reactive CD8+ T cell responses upon exposure to virus.
References
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Antibody Recognition of a Highly Conserved Influenza Virus Epitope

TL;DR: TheCR6261 epitope identified here should accelerate the design and implementation of improved vaccines that can elicit CR6261-like antibodies, as well as antibody-based therapies for the treatment of influenza.
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Structural and Functional Bases for Broad-Spectrum Neutralization of Avian and Human Influenza A Viruses

TL;DR: The crystal structure of one such nAb bound to H5 shows that it blocks infection by inserting its heavy chain into a conserved pocket in the stem region, thus preventing membrane fusion, and suggests that nAb-based immunotherapy is a promising strategy for broad-spectrum protection against seasonal and pandemic influenza viruses.
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Rapid cloning of high-affinity human monoclonal antibodies against influenza virus

TL;DR: The panel of influenza-virus-specific human mAbs allowed us to address the issue of original antigenic sin (OAS): the phenomenon where the induced antibody shows higher affinity to a previously encountered influenza virus strain compared with the virus strain present in the vaccine.
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