National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
75N93019C00051
United States
Citation
Journal: Nature / Year: 2022 Title: Broadly neutralizing antibodies target a haemagglutinin anchor epitope. Authors: Jenna J Guthmiller / Julianna Han / Henry A Utset / Lei Li / Linda Yu-Ling Lan / Carole Henry / Christopher T Stamper / Meagan McMahon / George O'Dell / Monica L Fernández-Quintero / Alec W ...Authors: Jenna J Guthmiller / Julianna Han / Henry A Utset / Lei Li / Linda Yu-Ling Lan / Carole Henry / Christopher T Stamper / Meagan McMahon / George O'Dell / Monica L Fernández-Quintero / Alec W Freyn / Fatima Amanat / Olivia Stovicek / Lauren Gentles / Sara T Richey / Alba Torrents de la Peña / Victoria Rosado / Haley L Dugan / Nai-Ying Zheng / Micah E Tepora / Dalia J Bitar / Siriruk Changrob / Shirin Strohmeier / Min Huang / Adolfo García-Sastre / Klaus R Liedl / Jesse D Bloom / Raffael Nachbagauer / Peter Palese / Florian Krammer / Lynda Coughlan / Andrew B Ward / Patrick C Wilson / Abstract: Broadly neutralizing antibodies that target epitopes of haemagglutinin on the influenza virus have the potential to provide near universal protection against influenza virus infection. However, viral ...Broadly neutralizing antibodies that target epitopes of haemagglutinin on the influenza virus have the potential to provide near universal protection against influenza virus infection. However, viral mutants that escape broadly neutralizing antibodies have been reported. The identification of broadly neutralizing antibody classes that can neutralize viral escape mutants is critical for universal influenza virus vaccine design. Here we report a distinct class of broadly neutralizing antibodies that target a discrete membrane-proximal anchor epitope of the haemagglutinin stalk domain. Anchor epitope-targeting antibodies are broadly neutralizing across H1 viruses and can cross-react with H2 and H5 viruses that are a pandemic threat. Antibodies that target this anchor epitope utilize a highly restricted repertoire, which encodes two public binding motifs that make extensive contacts with conserved residues in the fusion peptide. Moreover, anchor epitope-targeting B cells are common in the human memory B cell repertoire and were recalled in humans by an oil-in-water adjuvanted chimeric haemagglutinin vaccine, which is a potential universal influenza virus vaccine. To maximize protection against seasonal and pandemic influenza viruses, vaccines should aim to boost this previously untapped source of broadly neutralizing antibodies that are widespread in the human memory B cell pool.
History
Deposition
Dec 7, 2021
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Header (metadata) release
Jan 12, 2022
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Map release
Jan 12, 2022
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Update
Oct 30, 2024
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Current status
Oct 30, 2024
Processing site: RCSB / Status: Released
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