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  Human Neutrophils Kill Bacillus anthracis

Mayer-Scholl, A., Hurwitz, R., Brinkmann, V., Schmid, M., Jungblut, P. R., Weinrauch, Y., et al. (2005). Human Neutrophils Kill Bacillus anthracis. PLoS Pathogens, 1(3), e23-e23. doi:10.1371/journal.ppat.0010023.

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Genre: Journal Article
Alternative Title : PLoS Pathog.

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PLoS_Pathog_2005_1_e23.pdf (Publisher version), 540KB
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© 2005 Mayer-Scholl et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Mayer-Scholl, Anne1, Author           
Hurwitz, Robert2, Author           
Brinkmann, Volker3, Author           
Schmid, Monika4, Author           
Jungblut, Peter R.4, Author           
Weinrauch, Yvette, Author
Zychlinsky, Arturo1, Author           
Affiliations:
1Department of Cellular Microbiology, Max Planck Institute for Infection Biology, Max Planck Society, ou_1664145              
2Core Facilities / Proteinpurification, Max Planck Institute for Infection Biology, Max Planck Society, ou_1664144              
3Core Facilities / Microscopy, Max Planck Institute for Infection Biology, Max Planck Society, ou_1664142              
4Core Facilities / Proteinanalysis, Max Planck Institute for Infection Biology, Max Planck Society, ou_1664143              

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 Abstract: Bacillus anthracis spores cause natural infections and are used as biological weapons. Inhalation infection with B. anthracis, the etiological agent of anthrax, is almost always lethal, yet cutaneous infections usually remain localized and resolve spontaneously. Neutrophils are typically recruited to cutaneous but seldom to other forms of anthrax infections, raising the possibility that neutrophils kill B. anthracis. In this study we infected human neutrophils with either spores or vegetative bacteria of a wild-type strain, or strains, expressing only one of the two major virulence factors. The human neutrophils engulfed B. anthracis spores, which germinated intracellularly and were then efficiently killed. Interestingly, neutrophil killing was independent of reactive oxygen species production. We fractionated a human neutrophil granule extract by high-performance liquid chromatography and identified α-defensins as the component responsible for B. anthracis killing. These data suggest that the timely recruitment of neutrophils can control cutaneous infections and possibly other forms of B. anthracis infections, and that α-defensins play an important role in the potent anti-B. anthracis activity of neutrophils.

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Language(s): eng - English
 Dates: 2005-11
 Publication Status: Issued
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 Identifiers: eDoc: 265769
DOI: 10.1371/journal.ppat.0010023.
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Title: PLoS Pathogens
  Alternative Title : PLoS Pathog.
Source Genre: Journal
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Pages: - Volume / Issue: 1 (3) Sequence Number: - Start / End Page: e23 - e23 Identifier: ISSN: 1553-7366