Linked Life Data

2113875

Source:http://linkedlifedata.com/resource/pubmed/id/2113875

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1990-8-8
pubmed:abstractText
The production of insulin-like growth factor I (IGF-I) by pig Leydig cells and pig Sertoli cells cultured alone or together was investigated. Human chorionic gonadotropin (hCG) and basic fibroblast growth factor (FGF) stimulate in a dose-dependent manner IGF-I production by Leydig cells. At maximal concentrations the effects of both factors were almost additive. Insulin at micromolar concentrations enhanced IGF-I production and potentiated the effects of hCG and FGF. The secretion of IGF-I by Sertoli cells was stimulated by FSH and FGF. Under basal conditions, the production of IGF-I by the coculture was similar to the addition of the production by each cell cultured alone. In contrast, in the presence of hCG, FSH or FGF, the production of IGF-I by the coculture largely exceeded that expected from the monocultures. Moreover, stimulation of the coculture with both hCG and FSH resulted in a further increase in IGF-I production. These results indicate that Leydig as well as Sertoli cells secrete IGF-I and that the secretion of both cell types is stimulated by the corresponding gonadotropin. In addition, they indicate that Leydig-Sertoli interactions play a role in the control of IGF-I production, supporting the contention that this growth factor plays an important role in the paracrine and autocrine control of testicular functions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0303-7207
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
217-24
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Control of production of insulin-like growth factor I by pig Leydig and Sertoli cells cultured alone or together. Cell-cell interactions.
pubmed:affiliation
INSERM U 307, Hôpital Debrousse, Lyon, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't