Influenza Neuraminidase: A Neglected Protein and Its Potential for a Better Influenza Vaccine

Neuraminidase (NA) is an influenza surface protein that helps to free viruses from mucin-associated decoy receptors and to facilitate budding from infected cells. Experiments have demonstrated that anti-NA antibodies protect animals against lethal influenza challenge by numerous strains, while decre...

Full description

Bibliographic Details
Main Authors: Luca T. Giurgea, David M. Morens, Jeffery K. Taubenberger, Matthew J. Memoli
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Vaccines
Subjects:
Online Access:https://www.mdpi.com/2076-393X/8/3/409
_version_ 1797561499160412160
author Luca T. Giurgea
David M. Morens
Jeffery K. Taubenberger
Matthew J. Memoli
author_facet Luca T. Giurgea
David M. Morens
Jeffery K. Taubenberger
Matthew J. Memoli
author_sort Luca T. Giurgea
collection DOAJ
description Neuraminidase (NA) is an influenza surface protein that helps to free viruses from mucin-associated decoy receptors and to facilitate budding from infected cells. Experiments have demonstrated that anti-NA antibodies protect animals against lethal influenza challenge by numerous strains, while decreasing pulmonary viral titers, symptoms, and lung lesions. Studies in humans during the influenza A/H3N2 pandemic and in healthy volunteers challenged with influenza A/H1N1 showed that anti-NA immunity reduced symptoms, nasopharyngeal viral shedding, and infection rates. Despite the benefits of anti-NA immunity, current vaccines focus on immunity against hemagglutinin and are not standardized to NA content leading to limited and variable NA immunogenicity. Purified NA has been shown to be safe and immunogenic in humans. Supplementing current vaccines with NA may be a simple strategy to improve suboptimal effectiveness. Immunity against NA is likely to be an important component of future universal influenza vaccines.
first_indexed 2024-03-10T18:15:46Z
format Article
id doaj.art-40dc8a15ece34a219a0431f443fdcff4
institution Directory Open Access Journal
issn 2076-393X
language English
last_indexed 2024-03-10T18:15:46Z
publishDate 2020-07-01
publisher MDPI AG
record_format Article
series Vaccines
spelling doaj.art-40dc8a15ece34a219a0431f443fdcff42023-11-20T07:44:20ZengMDPI AGVaccines2076-393X2020-07-018340910.3390/vaccines8030409Influenza Neuraminidase: A Neglected Protein and Its Potential for a Better Influenza VaccineLuca T. Giurgea0David M. Morens1Jeffery K. Taubenberger2Matthew J. Memoli3LID Clinical Studies Unit, Laboratory of Infectious Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USANational Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USAViral Pathogenesis and Evolution Section, Laboratory of Infectious Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USALID Clinical Studies Unit, Laboratory of Infectious Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USANeuraminidase (NA) is an influenza surface protein that helps to free viruses from mucin-associated decoy receptors and to facilitate budding from infected cells. Experiments have demonstrated that anti-NA antibodies protect animals against lethal influenza challenge by numerous strains, while decreasing pulmonary viral titers, symptoms, and lung lesions. Studies in humans during the influenza A/H3N2 pandemic and in healthy volunteers challenged with influenza A/H1N1 showed that anti-NA immunity reduced symptoms, nasopharyngeal viral shedding, and infection rates. Despite the benefits of anti-NA immunity, current vaccines focus on immunity against hemagglutinin and are not standardized to NA content leading to limited and variable NA immunogenicity. Purified NA has been shown to be safe and immunogenic in humans. Supplementing current vaccines with NA may be a simple strategy to improve suboptimal effectiveness. Immunity against NA is likely to be an important component of future universal influenza vaccines.https://www.mdpi.com/2076-393X/8/3/409influenzaneuraminidaseuniversal influenza vaccine
spellingShingle Luca T. Giurgea
David M. Morens
Jeffery K. Taubenberger
Matthew J. Memoli
Influenza Neuraminidase: A Neglected Protein and Its Potential for a Better Influenza Vaccine
Vaccines
influenza
neuraminidase
universal influenza vaccine
title Influenza Neuraminidase: A Neglected Protein and Its Potential for a Better Influenza Vaccine
title_full Influenza Neuraminidase: A Neglected Protein and Its Potential for a Better Influenza Vaccine
title_fullStr Influenza Neuraminidase: A Neglected Protein and Its Potential for a Better Influenza Vaccine
title_full_unstemmed Influenza Neuraminidase: A Neglected Protein and Its Potential for a Better Influenza Vaccine
title_short Influenza Neuraminidase: A Neglected Protein and Its Potential for a Better Influenza Vaccine
title_sort influenza neuraminidase a neglected protein and its potential for a better influenza vaccine
topic influenza
neuraminidase
universal influenza vaccine
url https://www.mdpi.com/2076-393X/8/3/409
work_keys_str_mv AT lucatgiurgea influenzaneuraminidaseaneglectedproteinanditspotentialforabetterinfluenzavaccine
AT davidmmorens influenzaneuraminidaseaneglectedproteinanditspotentialforabetterinfluenzavaccine
AT jefferyktaubenberger influenzaneuraminidaseaneglectedproteinanditspotentialforabetterinfluenzavaccine
AT matthewjmemoli influenzaneuraminidaseaneglectedproteinanditspotentialforabetterinfluenzavaccine