Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1993-5-13
pubmed:abstractText
An in-vitro method was developed to study Sertoli-Leydig cell interactions in man, using testes removed at the time kidneys were removed for transplantation from 6 young adult men (aged 17-45 years) after cerebral death. After collagenase digestion of testicular tissue, Leydig cells were purified on discontinuous Percoll gradients. Two fractions of Leydig cells, 'L2' and 'L3' which differed in their buoyant density (1.05 g < L2 < 1.06 g and 1.06 g < L3 < 1.08 g), were obtained. The Sertoli cell-enriched preparation was obtained from seminiferous tubular fragments after sequential treatment with glycine buffer to remove peritubular-myoid cells, a second collagenase digestion, mechanical fragmentation and washes to remove germ cells. Purified Leydig cells were then cultured either alone or together with Sertoli cells in culture dishes coated with collagen, fibronectin and laminin in a chemically defined medium without serum. The influence of co-culture on basal testosterone secretion was examined in 3 successive 48 h periods.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0105-6263
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
27-34
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Enhancement of testosterone secretion by normal adult human Leydig cells by co-culture with enriched preparations of normal adult human Sertoli cells.
pubmed:affiliation
INSERM U.307, Hôpital Debrousse, Lyon, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't