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Milestones in Clostridium perfringens research since 1995
Bruce A McClane1, Jihong Li1, Francisco A Uzal2
1Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA.
Anaerobe
|November 6, 2025
Summary
Clostridium perfringens research has advanced understanding of its toxins, mobile genetic elements, and virulence regulation. Further exploration is needed to fully understand this important pathogen and its role in disease.
Area of Science:
- Microbiology
- Bacteriology
- Pathogen Research
Background:
- Clostridium perfringens is a significant human and veterinary pathogen.
- It is also a common component of the gut microbiota.
- Molecular approaches have greatly improved understanding since 1995.
Purpose of the Study:
- To review advances in understanding Clostridium perfringens pathogenicity and biology.
- To highlight newly discovered toxins and their disease links.
- To discuss the role of mobile genetic elements and virulence regulators.
Main Methods:
- Review of molecular approaches and scientific literature since 1995.
- Analysis of toxin discovery and characterization.
- Investigation of mobile genetic elements and regulatory mechanisms.
Main Results:
- Improved understanding of "legacy" toxins (CPA, PFO, ETX, CPB, ITX, CPE) and their pathogenic roles.
- Discovery of new toxins, including NetB, linked to disease.
- Established importance of mobile genetic elements for pathogenicity and antibiotic resistance.
- Identified regulators of virulence gene expression and their mechanisms.
- Enhanced knowledge of sporulation, germination, and their contribution to pathogenesis.
Conclusions:
- Significant progress has been made in understanding Clostridium perfringens biology and pathogenicity.
- Key toxins, mobile genetic elements, and regulatory pathways are better understood.
- Further research is required to address remaining questions about this bacterium.
