Cited by 391Influenza Virus Research StudiesRespiratory viral infections researchVirology and Viral Diseases

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

Expression of the 1918 Influenza A Virus PB1-F2 Enhances the Pathogenesis of Viral and Secondary Bacterial Pneumonia

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Abstract

Secondary bacterial pneumonia frequently claimed the lives of victims during the devastating 1918 influenza A virus pandemic. Little is known about the viral factors contributing to the lethality of the 1918 pandemic. Here we show that expression of the viral accessory protein PB1-F2 enhances inflammation during primary viral infection of mice and increases both the frequency and severity of secondary bacterial pneumonia. The priming effect of PB1-F2 on bacterial pneumonia could be recapitulated in mice by intranasal delivery of a synthetic peptide derived from the C-terminal portion of the PB1-F2. Relative to its isogenic parent, an influenza virus engineered to express a PB1-F2 with coding changes matching the 1918 pandemic strain was more virulent in mice, induced more pulmonary immunopathology, and led to more severe secondary bacterial pneumonia. These findings help explain both the unparalleled virulence of the 1918 strain and the high incidence of fatal pneumonia during the pandemic.

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Crossref · 10.1016/j.chom.2007.09.001

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Authors
McAuley, J. L., Hornung, F., Boyd, K. L., Smith, A. M., McKeon, R., Bennink, J., Yewdell, J. W., & McCullers, J. A.
Affiliations
  • St. Jude Children's Research Hospital (US)
  • National Institute of Allergy and Infectious Diseases (US)
  • University of Utah (US)
Corresponding author
McCullers, Jonathan A.
Venue
Cell Host & Microbe
Publisher
Elsevier BV
Published
2007-10
Volume
2
Issue
4
Pages
240-249
ISSN
1931-3128 (ISSN-L)
OpenAlex
W1988457839
Cited by
389
References
39
Citations by year
2026: 4 · 2025: 3 · 2024: 18 · 2023: 8 · 2022: 11 · 2021: 17 · 2020: 10 · 2019: 13 · 2018: 22 · 2017: 18 · 2016: 22 · 2015: 22 · 2014: 23 · 2013: 33 · 2012: 31
FWCI
21.78
Type
journal article
Language
en
Open access
Locations
  • Cell Host & Microbe (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • American Lebanese Syrian Associated Charities
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (AI-54802, AI66349, R21AI054802, R01AI066349)
Topics
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Health Sciences › Medicine › Epidemiology › Respiratory viral infections research
  • Health Sciences › Medicine › Epidemiology › Virology and Viral Diseases
Keywords
PB1-F2, viral accessory proteins, secondary bacterial pneumonia, viral pathogenesis, lung inflammation, immunopathology, virulence, synthetic peptides, bacterial co-infection
MeSH terms
Animals, Female, Inflammation, Mice, Inbred BALB C, Orthomyxoviridae Infections, Peptides, Pneumonia, Pneumococcal, Recombinant Proteins, Streptococcus pneumoniae, Viral Proteins, Virulence, Mice, Influenza A Virus, H1N1 Subtype

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