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Panton-Valentine leukocidin does play a role in the early stage of Staphylococcus aureus skin infections: a rabbit model

(2011) PLOS ONE. 6(8).
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Abstract
Despite epidemiological data linking necrotizing skin infections with the production of Panton-Valentine leukocidin (PVL), the contribution of this toxin to the virulence of S. aureus has been highly discussed as a result of inconclusive results of in vivo studies. However, the majority of these results originate from experiments using mice, an animal species which neutrophils - the major target cells for PVL - are highly insensitive to the action of this leukocidin. In contrast, the rabbit neutrophils have been shown to be as sensitive to PVL action as human cells, making the rabbit a better experimental animal to explore the PVL role. In this study we examined whether PVL contributes to S. aureus pathogenicity by means of a rabbit skin infection model. The rabbits were injected intradermally with 10(8) cfu of either a PVL positive community-associated methicillin-resistant S. aureus isolate, its isogenic PVL knockout or a PVL complemented knockout strain, and the development of skin lesions was observed. While all strains induced skin infection, the wild type strain produced larger lesions and a higher degree of skin necrosis compared to the PVL knockout strain in the first week after the infection. The PVL expression in the rabbits was indirectly confirmed by a raise in the serum titer of anti-LukS-PV antibodies observed only in the rabbits infected with PVL positive strains. These results indicate that the rabbit model is more suitable for studying the role of PVL in staphylococcal diseases than other animal models. Further, they support the epidemiological link between PVL producing S. aureus strains and necrotizing skin infections.
Keywords
CUTANEOUS INFECTIONS, VIRULENCE DETERMINANT, STRAINS, USA300, INFLAMMATION, LEUCOCIDIN, PNEUMONIA, DISEASE, TOXINS, POLYMORPHONUCLEAR LEUKOCYTES

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MLA
Lipinska, Urszula et al. “Panton-Valentine Leukocidin Does Play a Role in the Early Stage of Staphylococcus Aureus Skin Infections: a Rabbit Model.” PLOS ONE 6.8 (2011): n. pag. Print.
APA
Lipinska, U., Hermans, K., Meulemans, L., Dumitrescu, O., Badiou, C., Duchateau, L., Haesebrouck, F., et al. (2011). Panton-Valentine leukocidin does play a role in the early stage of Staphylococcus aureus skin infections: a rabbit model. PLOS ONE, 6(8).
Chicago author-date
Lipinska, Urszula, Katleen Hermans, Lieve Meulemans, Oana Dumitrescu, Claude Badiou, Luc Duchateau, Freddy Haesebrouck, Jerôme Etienne, and Gerard Lina. 2011. “Panton-Valentine Leukocidin Does Play a Role in the Early Stage of Staphylococcus Aureus Skin Infections: a Rabbit Model.” Plos One 6 (8).
Chicago author-date (all authors)
Lipinska, Urszula, Katleen Hermans, Lieve Meulemans, Oana Dumitrescu, Claude Badiou, Luc Duchateau, Freddy Haesebrouck, Jerôme Etienne, and Gerard Lina. 2011. “Panton-Valentine Leukocidin Does Play a Role in the Early Stage of Staphylococcus Aureus Skin Infections: a Rabbit Model.” Plos One 6 (8).
Vancouver
1.
Lipinska U, Hermans K, Meulemans L, Dumitrescu O, Badiou C, Duchateau L, et al. Panton-Valentine leukocidin does play a role in the early stage of Staphylococcus aureus skin infections: a rabbit model. PLOS ONE. 2011;6(8).
IEEE
[1]
U. Lipinska et al., “Panton-Valentine leukocidin does play a role in the early stage of Staphylococcus aureus skin infections: a rabbit model,” PLOS ONE, vol. 6, no. 8, 2011.
@article{1900083,
  abstract     = {Despite epidemiological data linking necrotizing skin infections with the production of Panton-Valentine leukocidin (PVL), the contribution of this toxin to the virulence of S. aureus has been highly discussed as a result of inconclusive results of in vivo studies. However, the majority of these results originate from experiments using mice, an animal species which neutrophils - the major target cells for PVL - are highly insensitive to the action of this leukocidin. In contrast, the rabbit neutrophils have been shown to be as sensitive to PVL action as human cells, making the rabbit a better experimental animal to explore the PVL role. In this study we examined whether PVL contributes to S. aureus pathogenicity by means of a rabbit skin infection model. The rabbits were injected intradermally with 10(8) cfu of either a PVL positive community-associated methicillin-resistant S. aureus isolate, its isogenic PVL knockout or a PVL complemented knockout strain, and the development of skin lesions was observed. While all strains induced skin infection, the wild type strain produced larger lesions and a higher degree of skin necrosis compared to the PVL knockout strain in the first week after the infection. The PVL expression in the rabbits was indirectly confirmed by a raise in the serum titer of anti-LukS-PV antibodies observed only in the rabbits infected with PVL positive strains. These results indicate that the rabbit model is more suitable for studying the role of PVL in staphylococcal diseases than other animal models. Further, they support the epidemiological link between PVL producing S. aureus strains and necrotizing skin infections.},
  articleno    = {e22864},
  author       = {Lipinska, Urszula and Hermans, Katleen and Meulemans, Lieve  and Dumitrescu, Oana and Badiou, Claude  and Duchateau, Luc and Haesebrouck, Freddy and Etienne, Jerôme and Lina, Gerard},
  issn         = {1932-6203},
  journal      = {PLOS ONE},
  keywords     = {CUTANEOUS INFECTIONS,VIRULENCE DETERMINANT,STRAINS,USA300,INFLAMMATION,LEUCOCIDIN,PNEUMONIA,DISEASE,TOXINS,POLYMORPHONUCLEAR LEUKOCYTES},
  language     = {eng},
  number       = {8},
  pages        = {8},
  title        = {Panton-Valentine leukocidin does play a role in the early stage of Staphylococcus aureus skin infections: a rabbit model},
  url          = {http://dx.doi.org/10.1371/journal.pone.0022864},
  volume       = {6},
  year         = {2011},
}

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