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Updated: May 26, 2026
07:26
Metal-Limited Growth of Neisseria gonorrhoeae for Characterization of Metal-Responsive Genes and Metal Acquisition from Host Ligands
Published on: March 4, 2020
Metalloregulation of Gram-positive pathogen physiology
Catherine A Wakeman1, Eric P Skaar
1Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232-2363, United States.
Current Opinion in Microbiology
|December 14, 2011
Summary
Pathogenic bacteria must sense and respond to metal ion fluctuations for survival. This involves regulating metal transport, physiology, and virulence factors to manage host-induced environmental changes.
Area of Science:
- Biochemistry
- Microbiology
- Molecular Biology
Background:
- Transition metals are essential enzyme cofactors but toxic in excess.
- Organisms require mechanisms to sense and balance intracellular metal levels.
- Pathogenic bacteria face host-induced metal fluctuations, impacting survival.
Purpose of the Study:
- To investigate the importance of metal ion sensing for pathogenic bacteria.
- To understand how bacteria adapt to host-imposed metal stress.
- To explore the regulation of bacterial physiology and virulence in response to metal availability.
Main Methods:
- Analysis of bacterial metal homeostasis pathways.
- Investigating gene expression related to metal transport and virulence.
- Studying bacterial adaptation strategies under varying metal concentrations.
Main Results:
- Pathogenic bacteria possess sophisticated systems for sensing metal ion concentrations.
- Rapid sensing allows for the activation of metal transport and detoxification mechanisms.
- Bacterial physiology and virulence factor expression are dynamically regulated by metal availability.
Conclusions:
- Metal ion sensing is critical for pathogenic bacteria to survive within host environments.
- Effective metal homeostasis is essential for managing host-induced metal toxicity and restriction.
- Bacterial adaptation to metal fluctuations influences their ability to cause disease.
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