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Dermatan sulphate is released by proteinases of common pathogenic bacteria and inactivates antibacterial α‐defensin
Open accessAbstract
Defensins represent an evolutionarily conserved group of small peptides with potent antibacterial activities. We report here that extracellular proteinases secreted by the human pathogens Pseudomonas aeruginosa, Enterococcus faecalis and Streptococcus pyogenes release dermatan sulphate by degrading dermatan sulphate‐containing proteoglycans, such as decorin. Dermatan sulphate was found to bind to neutrophil‐derived α‐defensin, and this binding completely neutralized its bactericidal activity. During infection, proteoglycan degradation and release of dermatan sulphate may therefore represent a previously unknown virulence mechanism, which could serve as a target for novel antibacterial strategies.
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Cited by
Antimicrobial peptides: key components of the innate immune system
Pasupuleti, M., Schmidtchen, A., & Malmsten, M. (2012) · Critical Reviews in Biotechnology · doi:10.3109/07388551.2011.594423 · Cited by 799
Self-citationHeilborn, J. D., Nilsson, M. F., Sørensen, O., Ståhle-Bäckdahl, M., Kratz, G., Weber, G., & Borregaard, N. (2003) · Journal of Investigative Dermatology · doi:10.1046/j.1523-1747.2003.12069.x · Cited by 572
The role of matrix metalloproteinases (MMPs) in human caries
Chaussain-Miller, C., Fioretti, F., Goldberg, M., & Menashi, S. (2006) · Journal of Dental Research · doi:10.1177/154405910608500104 · Cited by 481
Thomas, V. C., Thurlow, L. R., Boyle, D., & Hancock, L. E. (2008) · Journal of Bacteriology · doi:10.1128/jb.00314-08 · Cited by 302
Corruption of Innate Immunity by Bacterial Proteases
Potempa, J., & Pike, R. N. (2009) · Journal of Innate Immunity · doi:10.1159/000181144 · Cited by 276
Metadata
- Authors
- Schmidtchen, A., Frick, I., & Björck, L.
- Venue
- Molecular Microbiology
- Publisher
- Wiley
- Published
- 2001-02
- Volume
- 39
- Issue
- 3
- Pages
- 708-713
- ISSN
- 0950-382X (ISSN-L)
- 1365-2958
- OpenAlex
- W2024477522
- Cited by
- 160
- References
- 0
- FWCI
- 6.30
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Schmidtchen, A., Frick, I., & Björck, L. (2001). Dermatan sulphate is released by proteinases of common pathogenic bacteria and inactivates antibacterial α‐defensin. Molecular Microbiology. https://doi.org/10.1046/j.1365-2958.2001.02251.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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