Linked Life Data

9626341

Source:http://linkedlifedata.com/resource/pubmed/id/9626341

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1998-6-25
pubmed:abstractText
Growing evidence substantiates the role of the insulin-like growth factor I (IGF-1) system in breast tumorigenesis. Retinoids have been shown to affect the IGF system several experimental models. We extended our previous data on plasma IGF-1 modulation by the synthetic retinoid fenretinide (4-HPR) and investigated the effect of the retinoid on plasma IGF binding protein (BP)-3, the major protein binding IGFs. IGF-1 and IGFBP-3 were measured on plasma samples obtained at randomization and after an interval of approximately 1 year, from 39 and 33 stage 1 breast cancer patients assigned to receive 4-HPR, and from 39 and 34 untreated controls, respectively. There was a significant decrease in plasma IGF-1 after 4-HPR administration, whereas no significant change was observed in controls. The effect of 4-HPR on IGF-1 levels was modified by menopausal status, inasmuch as the decrease in IGF-1 was particularly pronounced in pre-menopausal women, whereas the reverse was observed in untreated controls. By contrast, treatment induced an increase of IGFBP-3 with respect to controls. As a result of this dual effect, the bioavailability of IGF-1 for interaction with receptors at target levels further decreased in pre-menopausal 4-HPR treated patients compared with controls, suggesting that retinoid administration may result in lower concentrations of biologically active IGF-1. Our findings may have important implications for the clinical preventive activity of this retinoid.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0020-7136
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
76
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
787-90
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Effect of fenretinide on plasma IGF-I and IGFBP-3 in early breast cancer patients.
pubmed:affiliation
Department of Medical Oncology II, National Institute for Cancer Research, Genoa, Italy.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.