Linked Life Data

2570139

Source:http://linkedlifedata.com/resource/pubmed/id/2570139

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1989-10-6
pubmed:abstractText
To elucidate the synthetic activity in relation to the morphology of the epithelial cells of the small and large intestine, in situ hybridization with a poly-deoxyribothymidine (poly d(T)) probe was applied to paraffin sections of formalin-fixed blocks. This effectively displays poly-adenylated RNA and, by implication, messenger RNA (mRNA). By minimizing proteinase K pretreatment, the relative concentrations of cellular mRNA were visualized. This revealed minimal mRNA in crypt columnar cells, and maximal mRNA in proliferating cells and in cells showing terminal differentiation. The latter include surface epithelial cells, endocrine cells, Paneth cells, and maturing, but not mature, goblet cells. The goblet cells showing positive hybridization can be regarded as active cells and show characteristic morphology. Such cells are particularly evident in untreated coeliac disease, remitting ulcerative colitis, and transitional mucosa. The proliferating cells showing increased hybridization include normal mitotically active crypt epithelium, regenerating epithelium in ulcerative colitis, adenomatous epithelium, and adenocarcinomatous epithelium. The similarity of hybridization between metaplastic polyp epithelium and surface colonocytes is consistent with the concept that metaplastic polyps are formed of cells showing premature terminal differentiation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-3417
pubmed:author
pubmed:issnType
Print
pubmed:volume
158
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
287-91
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Functional activity of intestinal epithelium demonstrated by mRNA in situ hybridization.
pubmed:affiliation
Department of Pathology, Leicester Royal Infirmary, U.K.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't