Linked Life Data

9296079

Source:http://linkedlifedata.com/resource/pubmed/id/9296079

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1997-10-2
pubmed:abstractText
Proteoglycans (PG) are complex sulphated macromolecules composed of linear polysaccharide chains of glycosaminoglycans (GAG) covalently attached to a core protein. These GAG chains contain sulphate groups at various positions, giving them a high density of negative charges, and allowing them to interact with extracellular matrix molecules, including various growth factors. In the developing mammary gland, sulphated proteoglycans participate in morphogenesis and interact with extracellular matrix components in order to constitute a functional matrix. In breast pathogenesis, qualitative or quantitative changes in PG may have important consequences on cell proliferation and/or differentiation. Thus, several studies showed large variations in the nature and distribution of PG/GAG in breast cancer. Accumulation of chondroitin sulfate proteoglycans was described in the stromal compartment of mammary biopsy sections, and content in heparan sulfate proteoglycans, which were more specifically distributed in the epithelial compartment, increased with the level of malignancy and invasiveness of breast cancer tissues. Furthermore, heparan sulfate proteoglycans seem to be involved in control of the growth-promoting activity of numerous growth factors such as fibroblast growth factors also named Heparin-Binding Growth Factors (HBGF). The implication of PG in growth factor activity suggest that PG may have prognostic value in breast cancer. In future, structural studies into the specific HS-sequences involvement in growth factors binding could allow the development of new antiproliferative strategies.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0369-8114
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
305-11
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
[Proteoglycans and breast cancer].
pubmed:affiliation
Unité de Dynamique des Cellules Embryonnaires et Cancéreuses, Centre de Biologie Cellulaire, Université des Sciences et Technologies de Lille, VILLENEUVE-D'ASCO.
pubmed:publicationType
Journal Article, English Abstract, Review