Cited by 80Antimicrobial Resistance in StaphylococcusAntimicrobial Peptides and ActivitiesStreptococcal Infections and Treatments

Phenol‐Soluble Modulin α3 Enhances the Human Neutrophil Lysis Mediated by Panton‐Valentine Leukocidin

Hongo, Isamu, Baba, Tadashi, Oishi, Kanenari, Morimoto, Yuh, Ito, Teruyo, Hiramatsu, Keiichi·2009·The Journal of Infectious Diseases

Abstract

Panton-Valentine leukocidin (PVL) has long been considered a critical toxin in severe Staphylococcus aureus infection. PVL presumably breaches the body's defense system by lysing human polymorphonuclear cells (PMNs). Recently, however, bioactive peptides--phenol-soluble modulins (PSMs)--have been proposed as the main player in the lysis of PMNs, rather than PVL. This study aimed to resolve uncertainty concerning the cause of the lysis of human PMNs by using recombinant PVL toxins and PVL-neutralizing monoclonal antibodies. The recombinant PVL toxins showed strong lytic activity against human but not murine neutrophils. Moreover, the lytic activity of culture supernatants of strains USA400 MW2 and USA300 FPR3757 were completely neutralized by anti-PVL monoclonal antibodies. In contrast, phenol-soluble modulin alpha 3--the most potent PSM peptide--failed to lyse human PMNs at the concentrations contained in the culture supernatants. Phenol-soluble modulin alpha 3 did, however, enhance PVL-mediated lysis of human PMNs.

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Crossref · 10.1086/605332

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Authors
Hongo, I., Baba, T., Oishi, K., Morimoto, Y., Ito, T., & Hiramatsu, K.
Affiliations
  • Juntendo University (JP)
  • Denka (Japan) (JP)
Venue
The Journal of Infectious Diseases
Published
2009-09
Volume
200
Issue
5
Pages
715-723
ISSN
  • 0022-1899 (ISSN-L)
  • 1537-6613
OpenAlex
W2146759278
Cited by
80
References
51
Citations by year
2025: 3 · 2024: 1 · 2023: 5 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 1 · 2018: 2 · 2017: 1 · 2016: 4 · 2015: 5 · 2014: 9 · 2013: 11 · 2012: 7
FWCI
7.10
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Infectious Diseases (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antimicrobial Resistance in Staphylococcus
  • Life Sciences › Immunology and Microbiology › Microbiology › Antimicrobial Peptides and Activities
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Streptococcal Infections and Treatments
Keywords
Panton-Valentine leukocidin, Staphylococcus aureus, neutrophil lysis, polymorphonuclear leukocytes, host defense evasion, virulence factors
MeSH terms
Adult, Animals, Antibodies, Monoclonal, Antitoxins, Bacterial Toxins, Cell Survival, Exotoxins, Humans, Leukocidins, Neutralization Tests, Neutrophils, Recombinant Proteins, Staphylococcus aureus, Mice

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