Cited by 103Influenza Virus Research StudiesVirology and Viral Diseasesvaccines and immunoinformatics approaches

The DOI matches its Crossref record; 29 of the 30 references it cites were found in a registry or an index.

Deliberate reduction of hemagglutinin and neuraminidase expression of influenza virus leads to an ultraprotective live vaccine in mice

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Yang, Chen, Skiena, Steven, Futcher, Bruce, Mueller, Steffen, Wimmer, Eckard·2013·Proceedings of the National Academy of Sciences

Abstract

A long-held dogma posits that strong presentation to the immune system of the dominant influenza virus glycoprotein antigens neuraminidase (NA) and hemagglutinin (HA) is paramount for inducing protective immunity against influenza virus infection. We have deliberately violated this dogma by constructing a recombinant influenza virus strain of A/PR8/34 (H1N1) in which expression of NA and HA genes was suppressed. We down-regulated NA and HA expression by recoding the respective genes with suboptimal codon pair bias, thereby introducing hundreds of nucleotide changes while preserving their codon use and protein sequence. The variants PR8-NA(Min), PR8-HA(Min), and PR8-(NA+HA)(Min) (Min, minimal expression) were used to assess the contribution of reduced glycoprotein expression to growth in tissue culture and pathogenesis in BALB/c mice. All three variants proliferated in Madin-Darby canine kidney cells to nearly the degree as WT PR8. In mice, however, they expressed explicit attenuation phenotypes, as revealed by their LD50 values: PR8, 32 plaque-forming units (PFU); HA(Min), 1.7 × 10(3) PFU; NA(Min), 2.4 × 10(5) PFU; (NA+HA)(Min), ≥3.16 × 10(6) PFU. Remarkably, (NA+HA)(Min) was attenuated >100,000-fold, with NA(Min) the major contributor to attenuation. In vaccinated mice (NA+HA)(Min) was highly effective in providing long-lasting protective immunity against lethal WT challenge at a median protective dose (PD50) of 2.4 PFU. Moreover, at a PD50 of only 147 or 237, (NA+HA)(Min) c…

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Crossref · 10.1073/pnas.1307473110

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Research works printed but not linked: 2

  1. P Palese, ML Shaw, Orthomyxoviridae: The viruses and their replication. Fields Virology, eds DM Knipe, PM Howley (Lippincott Williams & Wilkins, 5th Ed, Philadelphia) Vol 2, 1647–1690 (2006).
  2. L Reed, M Muench, A simple method for estimating fifty percent endpoints. Am J Hyg 27, 493–497 (1938).

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Metadata

Authors
Yang, C., Skiena, S., Futcher, B., Mueller, S., & Wimmer, E.
Affiliations
  • Stony Brook University (US)
  • Departments of aMolecular Genetics and Microbiology and
Venue
Proceedings of the National Academy of Sciences
Published
2013-05-20
Volume
110
Issue
23
Pages
9481-9486
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2025342581
Cited by
103
References
30
Citations by year
2026: 4 · 2025: 6 · 2024: 3 · 2023: 2 · 2022: 7 · 2021: 12 · 2020: 11 · 2019: 9 · 2018: 10 · 2017: 4 · 2016: 7 · 2015: 16 · 2014: 10 · 2013: 2
FWCI
8.52
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of General Medical Sciences (R01GM098400)
  • National Institute of Allergy and Infectious Diseases (R01AI075219, R01AI07521901A1)
Topics
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Health Sciences › Medicine › Epidemiology › Virology and Viral Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
Keywords
influenza virus, live attenuated vaccine, hemagglutinin, neuraminidase, codon pair bias, recombinant influenza virus, vaccine attenuation, heterologous challenge protection, H3N2, protective immunity
MeSH terms
Animals, Dogs, Lethal Dose 50, Male, Mice, Inbred BALB C, Neuraminidase, Orthomyxoviridae Infections, Viral Vaccines, Blotting, Northern, Blotting, Western, Down-Regulation, Hemagglutinin Glycoproteins, Influenza Virus, Mice, Influenza A Virus, H1N1 Subtype, Cross Protection, Madin Darby Canine Kidney Cells

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