Linked Life Data

8687098

Source:http://linkedlifedata.com/resource/pubmed/id/8687098

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-8-21
pubmed:abstractText
Using specific ELISA kits, we investigated the secretion of cytokines in five human prostate carcinoma cell lines: ALVA 31, DU145, LNCaP, ND1 and PC3. Three of the five cell lines investigated secreted granulocyte-macrophage colony-stimulating factor (GM-CSF); GM-CSF was not identified in ALVA31 or LNCaP. In addition, we have shown that conditioned media of DU145, ND1 and PC3 stimulated proliferation of the GM-CSF-dependent cell line MO7e indicating that these cells secrete biologically active GM-CSF. By flow cytometric analysis we determined that all five cell lines expressed the alpha-subunit of the GM-CSF receptor on the cell surface but only ALVA31 expressed both the alpha- and beta-subunits of the GM-CSF receptor. Varying concentrations of GM-CSF did not stimulate the proliferation rate of any of the prostate carcinoma cell lines. Thus, there does not appear to be autocrine loop of GM-CSF-induced proliferation. However, the expression of E-cadherin and endoglin (CD105) was modulated under GM-CSF treatment in ALVA31. In addition, GM-CSF decreased the level of soluble CD44 in ND1. These results suggest that the GM-CSF receptor alpha-subunit may play a role in metabolic activity of prostate cancer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0250-7005
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
557-63
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Human prostate carcinoma cell lines secrete GM-CSF and express GM-CSF-receptor on their cell surface.
pubmed:affiliation
Department of Pathology, Iowa City, IA 52242-1009, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't