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  • Title: Association of verotoxin-producing E. coli and verotoxin with hemolytic uremic syndrome.
    Author: Arbus GS.
    Journal: Kidney Int Suppl; 1997 Mar; 58():S91-6. PubMed ID: 9067954.
    Abstract:
    It has been over 10 years since we first showed an association [1] between classical hemolytic uremic syndrome (hemolytic anemia, thrombocytopenia, and uremia, following a diarrheal prodome) and certain E. coli [1] capable of producing a toxin, initially called verotoxin (VT) because of its cytopathic effect on Vero cells [2] and later Shiga-like toxin (SLT) because of the toxin's close biological and structural similarity to Shiga toxin. Although we initially reported that 75% of children with idiopathic hemolytic uremic syndrome (HUS) [1] had evidence of a verotoxin-producing E. coli (VTEC) [1], a later study showed that over a seven year period (1980-86), of 86 children seen with HUS, 91% had a classical presentation and 88% of these had evidence of a VTEC infection [3]. This paper traces the path of the incriminating organisms (VTEC) from the time of ingestion, up to and including internalization of the toxin into a target cell; in vitro experiments demonstrating the effect of toxin on endothelial cells are included. It is hoped that we might gain a clearer insight into factors that might predispose an individual to contracting HUS. Once a better understanding of the pathogenesis of VTEC associated HUS is known, areas for therapeutic intervention might be realized.
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