Linked Life Data

9425307

Source:http://linkedlifedata.com/resource/pubmed/id/9425307

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-1-26
pubmed:abstractText
MDCK-C7 cells dedifferentiated either by transient alkaline stress (C7F cells) or by transfection with a constitutively active mutant of the mitogen-activated protein kinase kinase MEK1 (C7caMEK1 cells) were analyzed by western blot and immunofluorescence microscopy to compare the expression of different cytokeratins, vimentin, and alpha-smooth muscle actin. Expression of all cytokeratins tested, the type II-neutral and basic cytokeratins CK5, CK7, CK8 as well as the type I-acidic keratins CK17 and CK19, was substantially reduced in dedifferentiated cell lines C7F and C7caMEK1 when compared with epithelial wild-type MDCK-C7 cells or mock-transfected MDCK-C7 cells. While vimentin expression was detected in all of the four MDCK-C7 cell lines examined, only the dedifferentiated cell lines C7F and C7caMEK1, which have been reported to express highly active ERK2, exhibited formation of alpha-smooth muscle actin-containing stress fibers. Taken together our results show that, associated with an increase in ERK2 activity, an epithelial to mesenchymal dedifferentiation occurred in both MDCK-C7F cells and caMEK1-transfected MDCK-C7 cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
241
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
541-7
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Loss of cytokeratin expression and formation of actin stress fibers in dedifferentiated MDCK-C7 cell lines.
pubmed:affiliation
Department of Physiology, University of Innsbruck, Austria.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't