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Visualization of Bacterial Toxin Induced Responses Using Live Cell Fluorescence Microscopy
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Perfringolysin O: The Underrated Clostridium perfringens Toxin?
Stefanie Verherstraeten1, Evy Goossens2, Bonnie Valgaeren3
1Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium. s.verherstraeten@gmail.com.
Toxins
|May 27, 2015
Summary
Clostridium perfringens produces perfringolysin O (PFO), a toxin that forms pores in cell membranes. This review explores PFO
Area of Science:
- Microbiology
- Molecular Biology
- Biochemistry
Background:
- Clostridium perfringens is an anaerobic bacterium that produces various toxins contributing to disease in humans and animals.
- Perfringolysin O (PFO), also known as theta toxin, is a cholesterol-dependent cytolysin (CDC) secreted by C. perfringens.
Purpose of the Study:
- To review the structural and functional characteristics of PFO.
- To highlight recent findings on PFO's role in disease pathogenesis.
Main Methods:
- Literature review of existing research on PFO structure, function, and disease association.
Main Results:
- PFO monomers bind to cholesterol on cell membranes and oligomerize into prepore complexes.
- The prepore complex converts into a pore approximately 250-300 Å in diameter.
- PFO is implicated in gas gangrene and bovine necrohemorrhagic enteritis, with potential roles in other C. perfringens-associated diseases.
Conclusions:
- PFO is a key toxin produced by C. perfringens with well-defined pore-forming capabilities.
- Further research is needed to fully elucidate PFO's contribution to diverse disease presentations.
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