Linked Life Data

10821946

Source:http://linkedlifedata.com/resource/pubmed/id/10821946

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2000-7-21
pubmed:abstractText
Recent reports of disruption of endothelial cell adherens junction proteins during neutrophil adhesion and transmigration have been challenged as being partly due to post-fixation artifactual release of neutrophil-derived proteases. In this study we examined alterations in the epithelial junctional complex during neutrophil adhesion. Using standard fixation protocols, neutrophil addition to epithelial monolayers resulted in gross disruption of apical junction protein immunofluorescence. However, the inclusion of a post fixation incubation step with formic acid resulted in epitope preservation. These observations indicate that neutrophil derived products, likely proteases, remain active despite prolonged exposure to conventional fixatives. This may result in diffuse and artifactual loss of epithelial junctional protein immunofluorescence. Formic acid prevents this loss of epitope staining and may be considered as an agent to preserve protease-sensitive endothelial or epithelial immunoreactivity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-1759
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
239
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
45-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Neutrophil products and alterations in epithelial junctional proteins: prevention of artifactual degradation.
pubmed:affiliation
Department of Pediatrics, Division of Gastroenterology and Nutrition, The University of Toronto, Ontario, M5S 1A8, Toronto, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't