Linked Life Data

2967455

Source:http://linkedlifedata.com/resource/pubmed/id/2967455

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1988-7-14
pubmed:abstractText
The efficiency of transformation of primary human embryo retinal (HER) cells by the adenovirus E1 region (E1A + E1B) depended on the virus serotype whereas transformation by E1A alone was a rare event regardless of serotype. Activated human c-Ha-ras and N-ras genes co-operated differentially with different E1As for HER transformation but were ineffective without E1A. Ras + E1A co-transformants containing Ad 12 E1A established directly from foci, in contrast to those containing Ad 2 or Ad 5 E1A. A spectrum of activated ras gene expression was found in stable co-transformants with mRNA and protein levels being lower in Ad 12 E1A + N-ras than Ad 2 E1A + N-ras cell lines. Down regulation of E1A transcription in the absence of E1B was found in Ad 2 E1A + Ha-ras transformants only but E1A protein levels were similar to those in Ad 2 E1A + N-ras or Ad 5 E1A + E1B cell lines. HER cell transformants which contained Ad 12 E1A were more tumourigenic than those which contained the Ad 2 or Ad 5 E1A. This unique transformation system shows that stable malignant transformation of primary human cells in vitro is a complex process requiring the combined activities of two or more types of genes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0950-9232
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
477-84
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Differential transformation of primary human embryo retinal cells by adenovirus E1 regions and combinations of E1A + ras.
pubmed:affiliation
Department of Cancer Studies, Medical School, Birmingham, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't