Escherichia coli Shiga Toxin Mechanisms of Action in Renal Disease

Shiga toxin-producing Escherichia coli is a contaminant of food and water that in humans causes a diarrheal prodrome followed by more severe disease of the kidneys and an array of symptoms of the central nervous system. The systemic disease is a complex referred to as diarrhea-associated hemolytic u...

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Main Author: Tom G. Obrig
Format: Article
Language:English
Published: MDPI AG 2010-12-01
Series:Toxins
Subjects:
Online Access:http://www.mdpi.com/2072-6651/2/12/2769/
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author Tom G. Obrig
author_facet Tom G. Obrig
author_sort Tom G. Obrig
collection DOAJ
description Shiga toxin-producing Escherichia coli is a contaminant of food and water that in humans causes a diarrheal prodrome followed by more severe disease of the kidneys and an array of symptoms of the central nervous system. The systemic disease is a complex referred to as diarrhea-associated hemolytic uremic syndrome (D+HUS). D+HUS is characterized by thrombocytopenia, microangiopathic hemolytic anemia, and acute renal failure. This review focuses on the renal aspects of D+HUS. Current knowledge of this renal disease is derived from a combination of human samples, animal models of D+HUS, and interaction of Shiga toxin with isolated renal cell types. Shiga toxin is a multi-subunit protein complex that binds to a glycosphingolipid receptor, Gb3, on select eukaryotic cell types. Location of Gb3 in the kidney is predictive of the sites of action of Shiga toxin. However, the toxin is cytotoxic to some, but not all cell types that express Gb3. It also can cause apoptosis or generate an inflammatory response in some cells. Together, this myriad of results is responsible for D+HUS disease.
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spelling doaj.art-85f7caa03c5a4362a70fe9cce4f737282022-12-22T02:57:09ZengMDPI AGToxins2072-66512010-12-012122769279410.3390/toxins2122769Escherichia coli Shiga Toxin Mechanisms of Action in Renal DiseaseTom G. ObrigShiga toxin-producing Escherichia coli is a contaminant of food and water that in humans causes a diarrheal prodrome followed by more severe disease of the kidneys and an array of symptoms of the central nervous system. The systemic disease is a complex referred to as diarrhea-associated hemolytic uremic syndrome (D+HUS). D+HUS is characterized by thrombocytopenia, microangiopathic hemolytic anemia, and acute renal failure. This review focuses on the renal aspects of D+HUS. Current knowledge of this renal disease is derived from a combination of human samples, animal models of D+HUS, and interaction of Shiga toxin with isolated renal cell types. Shiga toxin is a multi-subunit protein complex that binds to a glycosphingolipid receptor, Gb3, on select eukaryotic cell types. Location of Gb3 in the kidney is predictive of the sites of action of Shiga toxin. However, the toxin is cytotoxic to some, but not all cell types that express Gb3. It also can cause apoptosis or generate an inflammatory response in some cells. Together, this myriad of results is responsible for D+HUS disease.http://www.mdpi.com/2072-6651/2/12/2769/Shiga toxinkidneyHUSGb3animal modelrenal failureE. coli
spellingShingle Tom G. Obrig
Escherichia coli Shiga Toxin Mechanisms of Action in Renal Disease
Toxins
Shiga toxin
kidney
HUS
Gb3
animal model
renal failure
E. coli
title Escherichia coli Shiga Toxin Mechanisms of Action in Renal Disease
title_full Escherichia coli Shiga Toxin Mechanisms of Action in Renal Disease
title_fullStr Escherichia coli Shiga Toxin Mechanisms of Action in Renal Disease
title_full_unstemmed Escherichia coli Shiga Toxin Mechanisms of Action in Renal Disease
title_short Escherichia coli Shiga Toxin Mechanisms of Action in Renal Disease
title_sort escherichia coli shiga toxin mechanisms of action in renal disease
topic Shiga toxin
kidney
HUS
Gb3
animal model
renal failure
E. coli
url http://www.mdpi.com/2072-6651/2/12/2769/
work_keys_str_mv AT tomgobrig escherichiacolishigatoxinmechanismsofactioninrenaldisease