Linked Life Data

2266122

Source:http://linkedlifedata.com/resource/pubmed/id/2266122

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
36
pubmed:dateCreated
1991-2-14
pubmed:abstractText
Mature, confluent monolayer cultures of IEC-6 rat intestinal epithelial cells in conventional growth media express both Na(+)-linked, concentrative nucleoside transport (NT) activity and equilibrative, inhibitor-sensitive NT activity, but do not show morphologic differentiation. Na(+)-dependent fluxes of Ado and formycin B were minor in early subconfluent IEC-6 monolayers, but increased severalfold to become the major component of influx of these agents in confluent monolayers grown in medium containing Nu-Serum, a commercial medium supplement with a low serum content. In monolayers cultured in medium with fetal bovine serum, cell proliferation rates were similar to those in medium supplemented with Nu-Serum, but expression of Na(+)-linked NT activity was 6-8-fold lower than in monolayers grown in the latter medium. Inclusion of hydrocortisone in growth medium with Nu-Serum caused a 2-fold increase in the expression of Na(+)-linked NT activity. Experiments in which components of medium supplementation were withheld showed that insulin and epidermal growth factor were important in expression of the Na(+)-linked NT activity. Because the Na(+)-linked NT system has a brush border location in fresh intestinal epithelium, it is concluded that the regulated expression of this activity in the IEC-6 monolayers is a differentiative change.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
265
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
22210-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Expression of sodium-linked nucleoside transport activity in monolayer cultures of IEC-6 intestinal epithelial cells.
pubmed:affiliation
McEachern Laboratory, University of Alberta, Edmonton, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't