Cited by 271Respiratory viral infections researchSARS-CoV-2 and COVID-19 ResearchVirology and Viral Diseases

Neutralizing antibodies against the preactive form of respiratory syncytial virus fusion protein offer unique possibilities for clinical intervention

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Magro, Margarita, Mas, Vicente, Chappell, Keith, Vázquez, Mónica, Cano, Olga, Luque, Daniel, Terrón, María C., Melero, José A. +1 more·2012·Proceedings of the National Academy of Sciences

Abstract

Human respiratory syncytial virus (hRSV) is the most important viral agent of pediatric respiratory infections worldwide. The only specific treatment available today is a humanized monoclonal antibody (Palivizumab) directed against the F glycoprotein, administered prophylactically to children at very high risk of severe hRSV infections. Palivizumab, as most anti-F antibodies so far described, recognizes an epitope that is shared by the two conformations in which hRSV_F can fold, the metastable prefusion form and the highly stable postfusion conformation. We now describe a unique class of antibodies specific for the prefusion form of this protein that account for most of the neutralizing activity of either a rabbit serum raised against a vaccinia virus recombinant expressing hRSV_F or a human Ig preparation (Respigam), which was used for prophylaxis before Palivizumab. These antibodies therefore offer unique possibilities for immune intervention against hRSV, and their production should be assessed in trials of hRSV vaccines.

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  • The major target of RSV-neutralizing antibodies elicited by natural infection resides primarily on the prefusion conformation of RSV F.

    “Recently, however, the major target of RSV-neutralizing antibodies elicited by natural infection was found to reside primarily on the prefusion conformation of RSV F (10).”

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  1. Collins PL, Crowe JE (2007) Respiratory syncytial virus and metapneumovirus. Fields Virology (Wolters Kluwer/Lippincott Williams & Wilkins, Philadelphia), 5th Ed, pp 1601-1646.

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Authors
Magro, M., Mas, V., Chappell, K., Vázquez, M., Cano, O., Luque, D., Terrón, M. C., Melero, J. A., & Palomo, C.
Affiliations
  • Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (ES)
  • Biología Viral, Centro Nacional de Microbiología and CIBER de Enfermedades Respiratorias, 28220 Madrid, Spain; and
  • Instituto de Salud Carlos III (ES)
Corresponding author
Melero, José A.
Venue
Proceedings of the National Academy of Sciences
Published
2012-02-08
Volume
109
Issue
8
Pages
3089-3094
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1988459634
Cited by
271
References
33
Citations by year
2026: 13 · 2025: 20 · 2024: 25 · 2023: 23 · 2022: 13 · 2021: 18 · 2020: 19 · 2019: 23 · 2018: 18 · 2017: 25 · 2016: 21 · 2015: 24 · 2014: 13 · 2013: 14 · 2012: 2
FWCI
12.88
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministerio de Ciencia e Innovación (SAF2009-11632)
Topics
  • Health Sciences › Medicine › Epidemiology › Respiratory viral infections research
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Epidemiology › Virology and Viral Diseases
Keywords
respiratory syncytial virus, F glycoprotein, prefusion conformation, neutralizing antibodies, postfusion conformation, palivizumab, RSV vaccine development, pediatric respiratory infection, prophylaxis
MeSH terms
Amino Acid Sequence, Animals, Antibodies, Viral, Humans, Immunization, Molecular Sequence Data, Rabbits, Recombinant Proteins, Vaccinia virus, Viral Fusion Proteins, Respiratory Syncytial Virus, Human, Respiratory Syncytial Virus Infections, Protein Stability, Antibodies, Neutralizing

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