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Shiga toxin-associated hemolytic uremic syndrome: interleukin-1 beta enhancement of Shiga toxin cytotoxicity toward human vascular endothelial cells in vitro
- Source :
- Infection and Immunity. 61:3886-3891
- Publication Year :
- 1993
- Publisher :
- American Society for Microbiology, 1993.
-
Abstract
- Development of hemolytic uremic syndrome (HUS) after infection by Shigella dysenteriae 1 or enterohemorrhagic Escherichia coli has been associated with the production of Shiga toxins (verotoxins). The putative target of Shiga toxins in HUS is the renal microvascular endothelium. This report shows that preincubation of human umbilical vein endothelial cells (HUVEC) with interleukin-1 beta (IL-1 beta) enhances the cytotoxic potency of Shiga toxin toward HUVEC. A preincubation of HUVEC with IL-1 beta is required for sensitization of HUVEC to Shiga toxin. Sensitization of HUVEC to Shiga toxin is IL-1 beta dose dependent. Development of the IL-1 beta response is time dependent, beginning within 2 h of IL-1 beta preincubation and increasing over the next 24 h. That these responses were due to IL-1 beta was demonstrated by heat inactivation of IL-1 beta, by neutralization of IL-1 beta by specific antibody, and by the ability of an IL-1 beta receptor antagonist to inhibit the effect of IL-1 beta. Shiga toxin-related inhibition of HUVEC protein synthesis preceded loss of cell viability. IL-1 beta incubation with HUVEC induced the receptor for Shiga toxin, globotriaosylceramide. Lipopolysaccharide included during IL-1 beta preincubation with HUVEC increased sensitivity to Shiga toxin in an additive manner. We conclude that IL-1 beta may induce Shiga toxin sensitivity in endothelial cells and contribute to the development of HUS.
- Subjects :
- Lipopolysaccharides
Shigella dysenteriae
Lipopolysaccharide
Cell Survival
Bacterial Toxins
Immunology
Globotriaosylceramide
Biology
Shiga Toxins
medicine.disease_cause
Microbiology
Umbilical vein
chemistry.chemical_compound
medicine
Humans
Beta (finance)
Escherichia coli
Cells, Cultured
Cytotoxins
Toxin
Trihexosylceramides
Shiga toxin
biology.organism_classification
Infectious Diseases
chemistry
Protein Biosynthesis
Hemolytic-Uremic Syndrome
cardiovascular system
biology.protein
Parasitology
Endothelium, Vascular
Research Article
Interleukin-1
Subjects
Details
- ISSN :
- 10985522 and 00199567
- Volume :
- 61
- Database :
- OpenAIRE
- Journal :
- Infection and Immunity
- Accession number :
- edsair.doi.dedup.....9df97b3f5edd62736052814c7e9a849d