Linked Life Data

1610924

Source:http://linkedlifedata.com/resource/pubmed/id/1610924

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1992-7-29
pubmed:abstractText
Proteoglycans synthesized in vitro by periovular granulomas isolated from livers of schistosome-infected mice were compared with those produced by granuloma-derived cell lines: the primary cell line GR and the permanent cell line GRX. Proteoglycans were metabolically labelled with 35S-sulfate and extracted with 4 M guanidine-HCl containing 2.0% Triton X-100, in the presence of proteinase inhibitors. The radiolabelled proteoglycans were purified and characterized by anion-exchange, gel-filtration and affinity-column chromatography. Heparan sulfate proteoglycans (HS-PGs) and chondroitin sulfate/dermatan sulfate-containing proteoglycans (CS/DS-PGs) were detected in both the culture medium and the cell-associated fractions obtained from GR cells. More than 90% of the cell-associated HS-PG from these cells contained a hydrophobic portion, as evidenced by their ability to bind to octyl-Sepharose. In contrast, among the secreted proteoglycans, it was the CS/DS-PG and not the HS-PG that bound to this resin. The major fractions of cell-associated and secreted proteoglycans from GRX cells were HS-PGs. Similar to HS-PGs from GR cells, 50% of the cell-associated HS-PG bound to octyl-Sepharose, while only 20% of secreted proteoglycans (HS-PGs) bound to this resin. The proteoglycans purified from the whole granuloma were composed mainly of DS-PG, of a size and hydrophobicity similar to the CS/DS-PG from GR cells. Possible correlations among the structure, secretion, distribution and function of proteoglycans in granulomatous reactions are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
9
pubmed:volume
1139
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
96-104
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Proteoglycans synthesized by the hepatic granulomas isolated from schistosome-infected mice and by the granuloma-derived connective tissue cell lines.
pubmed:affiliation
Departamento de Bioquímica, Universidade Federal do Rio de Janeiro, Brazil.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't