Cited by 211Antimicrobial Resistance in StaphylococcusHeat shock proteins researchBiochemical and Structural Characterization

β-Lactones as Specific Inhibitors of ClpP Attenuate the Production of Extracellular Virulence Factors of Staphylococcus aureus

Böttcher, Thomas, Sieber, Stephan A.·2008·Journal of the American Chemical Society

Abstract

To approach the daunting problem of multidrug resistant bacterial pathogens, a multidisciplinary chemical proteomic strategy was applied and functionalized beta-lactones were identified as potent, cell permeable inhibitors for specific and selective targeting of the key virulence regulator complex ClpP in S. aureus and methicillin resistant S. aureus (MRSA) strains. ClpP represents the central protease complex responsible for the activation of numerous virulence factors including many with devastating effects for human health such as hemolysins, proteases, lipases, and DNases. Although the crucial role of this enzyme was validated by genetic knockouts, no inhibitor has been reported to date. In fact, our most potent inhibitor was able to completely abolish hemolytic and proteolytic activities and showed a dramatic decrease in the activities of virulence associated lipases and DNases. These effects were also observed in a multiresistant strain emphasizing the potential value of such compounds. Targeting this virulence factor may therefore likely represent an attractive strategy for neutralizing the harmful effects of bacterial pathogens and help the host immune response to eliminate the disarmed bacteria. Since ClpP is not essential for viability and highly conserved in many pathogens, our strategy could represent a global approach for the treatment of infectious diseases without the pressing problem of antibiotic pressure and resistance development.

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Crossref · 10.1021/ja8051365

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Authors
Böttcher, T., & Sieber, S. A.
Affiliations
Center for Integrated Protein Science Munich (DE)
Corresponding author
Sieber, Stephan A.
Venue
Journal of the American Chemical Society
Published
2008-10-11
Volume
130
Issue
44
Pages
14400-14401
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2026902916
Cited by
207
References
14
Citations by year
2026: 7 · 2025: 11 · 2024: 9 · 2023: 12 · 2022: 8 · 2021: 6 · 2020: 17 · 2019: 14 · 2018: 15 · 2017: 14 · 2016: 10 · 2015: 6 · 2014: 8 · 2013: 21 · 2012: 11
FWCI
8.19
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antimicrobial Resistance in Staphylococcus
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Structural Characterization
Keywords
β-lactones, ClpP protease, Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, virulence factor inhibition, hemolysin, proteolytic enzymes, lipase, DNase, multidrug resistance, chemoproteomics, cell-permeable inhibitors, antibiotic alternatives
MeSH terms
Lactones, Staphylococcus aureus, Substrate Specificity, Serine Proteinase Inhibitors, Virulence Factors, Endopeptidase Clp, Methicillin-Resistant Staphylococcus aureus

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