Linked Life Data

8530586

Source:http://linkedlifedata.com/resource/pubmed/id/8530586

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1996-1-31
pubmed:abstractText
In this study, we examined the expression of insulin-like growth factor (IGF) ligands, receptors, (IGFR1, IGFR2), and binding proteins (IGFBPs) in the human prostate cancer cell line DU145, as well as its mitogenic response to the IGFs. Using RNase protection assays, we found expression of IGF-II, IGFR1, and IGFR2 but failed to detect IGF-I messenger RNA. Distinct binding protein species as well as immunoreactive IGF-II were detected in conditioned media using radioligand and immunoblotting assays. Compared with controls, treatment with exogenous IGF-I and IGF-II resulted in stimulation of monolayer and anchorage-independent growth. Recombinant human IGFBP-1, which binds IGF-II with high affinity, inhibited IGF-II-induced monolayer growth and both baseline and IGF-II-induced anchorage-independent growth in this cell line. Our data suggest IGF-II is as an autocrine growth factor in DU145 cells, and that inhibition of IGF-II-dependent growth of human prostate cancer cells may represent a new therapeutic strategy for this disease.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
80
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3476-82
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Proliferation of cultured human prostate cancer cells is inhibited by insulin-like growth factor (IGF) binding protein-1: evidence for an IGF-II autocrine growth loop.
pubmed:affiliation
Department of Medicine, University of Texas Health Science Center at San Antonio 78284-7884, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't