Shiga Toxin-Producing Escherichia coli: Diagnostics, Characterization, and Pathogenesis
A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Molecular Microbiology and Immunology".
Deadline for manuscript submissions: 31 October 2024 | Viewed by 218
Special Issue Editor
2. Division of Infectious Diseases, Department of Medicine Huddinge, Karolinska Institutet, 141 86 Stockholm, Sweden
3. Department of Clinical Microbiology, Division of Laboratory Medicine, Karolinska Institutet, 141 52 Stockholm, Sweden
Interests: Shiga toxin-producing Escherichia coli; pathogenesis; genomics and metagenomics; microbiome; infectious diseases
Special Issue Information
Dear Colleagues,
Shiga toxin-producing Escherichia coli (STEC), representing a genetically and phenotypically diverse group of E. coli strains characterized by the production of one or more Shiga toxins (Stxs), has been linked to a broad spectrum of clinical outcomes ranging from asymptomatic infection, bloody diarrhea, and the potentially life-threatening complication known as hemolytic uremic syndrome (HUS). The Stx is the key virulence factor of STEC and comprises two types: Stx1 and Stx2. The most predominant STEC serotype, O157:H7, normally producing the Stx2a subtype (with or without Stx2c), has been strongly associated with severe clinical symptoms, such as HUS. In recent years, non-O157 STEC infections are increasingly recognized as the main cause of sporadic cases or outbreaks worldwide, primarily due to improvements in diagnostics. To date, there is no curative treatment for STEC-HUS, and patient care largely remains supportive. Antibiotic therapy is considered to be contraindicated, as it boosts the release of Stxs and stimulates the absorption of the toxin, which ultimately increases the risk of HUS. Recent studies show that there are no single or combination of bacterial genetic markers that can predict the potential of STEC strains to cause severe clinical outcomes, evidencing that various bacterial and host-related factors, e.g., variations in host immunity, contribute to STEC pathogenicity and HUS progression.
The aim of this Special Issue is to summarize the current knowledge and report up-to-date research on the diagnostics, characterization, and pathogenesis of STEC, which may shed light upon new perspectives for the management of STEC-associated diseases, in particular HUS and its complications.
Dr. Xiangning Bai
Guest Editor
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Keywords
- Shiga toxin-producing Escherichia coli
- diagnostics
- characterization
- pathogenetic mechanism
- virulence
- disease severity
- diarrhea
- hemolytic uremic syndrome
- bacteria-host interactions
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