Linked Life Data

8885392

Source:http://linkedlifedata.com/resource/pubmed/id/8885392

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1997-1-23
pubmed:abstractText
Vibrio cholerae must colonize the human small intestine to cause diarrhoeal disease. V.cholerae strains N16961 (EI Tor, Inaba) and 395 (classical, Ogawa) adhered to the epithelial cell surface and the mucus layer of isolated human small intestinal epithelial cells. They adhered specifically to the mucosa and apical membrane in thin sections of small intestine. No binding to the basolateral membrane of dissected epithelial tissue or to intracellular components of the epithelial cells was observed by either light or indirect immunofluorescence microscopy. Based on these results, a modified ELISA was developed to quantitatively study adherence of V. cholerae to human small intestinal epithelial cells. The assay used homogenized human small intestinal mucosal tissue as the substrate for binding. Treatment of the epithelial cell homogenate with 2-mercaptoethanol to disrupt protein and glycoprotein secondary structure inhibited the binding of V. cholerae strains, suggesting that binding was to specific receptors. Several V. cholerae strains and mutants from both biotypes were tested for adherence in the modified ELISA. Wild-type strains of both biotypes and non-enterotoxigenic strains, which were known to colonize humans, adhered. V. cholerae mutants defective in motility, flagellar structure of chemotaxis, which were known to exhibit reduced colonization in animal models, exhibited decreased adherence. The specificity of the assay and its ability to quantify binding should facilitate identification and the study of adherence factors involved in the colonization of human small intestinal epithelial cells by V. cholerae.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1350-0872
pubmed:author
pubmed:issnType
Print
pubmed:volume
142 ( Pt 10)
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2767-76
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Motility mutants of Vibrio cholerae O1 have reduced adherence in vitro to human small intestinal epithelial cells as demonstrated by ELISA.
pubmed:affiliation
Biosciences Division, General Atomics, San Diego, CA 92186-9784, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't