Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C

Enterotoxigenic Escherichia coli (ETEC) associated diarrhea is responsible for roughly half a million deaths per year, the majority taking place in developing countries. The main agent responsible for these diseases is the bacterial heat-stable enterotoxin STa. STa is secreted by ETEC and after secr...

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Main Authors: Hanna Berkner, Paul Rösch, Philipp R. Weiglmeier
Format: Article
Language:English
Published: MDPI AG 2010-08-01
Series:Toxins
Subjects:
Online Access:http://www.mdpi.com/2072-6651/2/9/2213/
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author Hanna Berkner
Paul Rösch
Philipp R. Weiglmeier
author_facet Hanna Berkner
Paul Rösch
Philipp R. Weiglmeier
author_sort Hanna Berkner
collection DOAJ
description Enterotoxigenic Escherichia coli (ETEC) associated diarrhea is responsible for roughly half a million deaths per year, the majority taking place in developing countries. The main agent responsible for these diseases is the bacterial heat-stable enterotoxin STa. STa is secreted by ETEC and after secretion binds to the intestinal receptor guanylyl cyclase C (GC-C), thus triggering a signaling cascade that eventually leads to the release of electrolytes and water in the intestine. Additionally, GC-C is a specific marker for colorectal carcinoma and STa is suggested to have an inhibitory effect on intestinal carcinogenesis. To understand the conformational events involved in ligand binding to GC-C and to devise therapeutic strategies to treat both diarrheal diseases and colorectal cancer, it is paramount to obtain structural information on the receptor ligand system. Here we summarize the currently available structural data and report on physiological consequences of STa binding to GC-C in intestinal epithelia and colorectal carcinoma cells.
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spelling doaj.art-456ac76b3cb746ed8c75431ff8f976962022-12-22T03:18:36ZengMDPI AGToxins2072-66512010-08-01292213222910.3390/toxins2092213Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase CHanna BerknerPaul RöschPhilipp R. WeiglmeierEnterotoxigenic Escherichia coli (ETEC) associated diarrhea is responsible for roughly half a million deaths per year, the majority taking place in developing countries. The main agent responsible for these diseases is the bacterial heat-stable enterotoxin STa. STa is secreted by ETEC and after secretion binds to the intestinal receptor guanylyl cyclase C (GC-C), thus triggering a signaling cascade that eventually leads to the release of electrolytes and water in the intestine. Additionally, GC-C is a specific marker for colorectal carcinoma and STa is suggested to have an inhibitory effect on intestinal carcinogenesis. To understand the conformational events involved in ligand binding to GC-C and to devise therapeutic strategies to treat both diarrheal diseases and colorectal cancer, it is paramount to obtain structural information on the receptor ligand system. Here we summarize the currently available structural data and report on physiological consequences of STa binding to GC-C in intestinal epithelia and colorectal carcinoma cells.http://www.mdpi.com/2072-6651/2/9/2213/heat-stable enterotoxinguanylyl cyclase Csecretory diarrheacolorectal cancer
spellingShingle Hanna Berkner
Paul Rösch
Philipp R. Weiglmeier
Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C
Toxins
heat-stable enterotoxin
guanylyl cyclase C
secretory diarrhea
colorectal cancer
title Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C
title_full Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C
title_fullStr Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C
title_full_unstemmed Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C
title_short Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C
title_sort cure and curse e coli heat stable enterotoxin and its receptor guanylyl cyclase c
topic heat-stable enterotoxin
guanylyl cyclase C
secretory diarrhea
colorectal cancer
url http://www.mdpi.com/2072-6651/2/9/2213/
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AT philipprweiglmeier cureandcurseecoliheatstableenterotoxinanditsreceptorguanylylcyclasec