Verotoxin-binding in human renal sections.

Abstract:

:Gastrointestinal infection with verotoxin-producing Escherichia coli (VTEC) has been strongly implicated in the etiology of the hemolytic uremic syndrome (HUS), the leading cause of pediatric acute renal failure. The binding of fluorescein-conjugated VT1 overlaid on to frozen human renal sections has been examined. Sections from biopsies of infants aged < 2 years were compared with those from adult autopsies. VT primarily stained distal convoluted tubules, particularly those adjacent to glomeruli, and collecting ducts. VT-binding was detected within the infant glomerulus but not the adult. Binding of the toxin was removed when the section was pretreated with alpha-galactosidase, confirming the receptor-binding specificity for globotriaosyl ceramide (gal alpha 1-4gal beta 1-4 glucosylceramide), the glycolipid receptor for VT. These studies may suggest that differential localization of this glycolipid in the pediatric renal glomerulus is a risk factor for the development of HUS following infection with VTEC.

journal_name

Nephron

journal_title

Nephron

authors

Lingwood CA

doi

10.1159/000187761

subject

Has Abstract

pub_date

1994-01-01 00:00:00

pages

21-8

issue

1

eissn

1660-8151

issn

2235-3186

journal_volume

66

pub_type

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