Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1982-10-21
pubmed:abstractText
Plasma membranes from tumor cells in enzootic bovine leukosis and from normal bovine lymphoid cells of different sources have been isolated and characterized. The glycoprotein composition of the different membranes has been studied by SDS-PAGE and by analysis of the carbohydrate composition as well as by lectin binding of glycoprotein fractions obtained by phenol treatment of the membranes. No differences in the electrophoretical glycoprotein pattern could be detected comparing (nonmalignant) cells from persistent lymphocytosis and tumour cells, suggesting that malignancy is not associated with the gain or loss of a major glycoprotein. A 151.5 kD glycoprotein, present in membranes from normal lymph node lymphocytes, seems to be absent in the membranes of peripheral blood lymphocytes as well as of tumour cells. The loss of this glycoprotein might thus be associated with a loss of sessility of bovine lymphoid cells. The carbohydrate analysis and lectin binding of extracted glycoproteins revealed a decreased fucosylation accompanied by an increased exposure of galactose residues as well as a loss or a decreased complexity of N-glycosidically bound oligosaccharides in the tumour cell glycoproteins compared with those of normal cells. These findings are discussed with regard to disturbed growth regulation of leukosis tumour cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0001-5318
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
145-60
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Plasma membrane glycoproteins of tumour cells in enzootic bovine leukosis compared with normal bovine lymphoid cells.
pubmed:publicationType
Journal Article, Comparative Study