Linked Life Data

19520787

Source:http://linkedlifedata.com/resource/pubmed/id/19520787

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2009-8-24
pubmed:abstractText
Insulin-like factor 6 (INSL6), a member of the insulin-like superfamily, is predominantly expressed in male germ cells. Expression of the Insl6 is first detected in mouse testis at postnatal d 15 when the first wave of spermatogenesis progresses to pachytene spermatocytes. To elucidate the role of INSL6 in germ cell development, we generated Insl6-deficient mice. The majority of the Insl6-deficient males on a hybrid genetic background exhibited impaired fertility, whereas females were fertile. The number of mature sperm and sperm motility were drastically reduced in the epididymis. The reduced sperm count could be due to apoptotic death of a significant number of developing germ cells. Analysis of germ cell development during the juvenile life showed an arrest of the first wave of spermatogenesis in late meiotic prophase. RNA analysis revealed a significant decrease in expression of late meiotic- and postmeiotic-specific marker genes, whereas expression of early meiotic-specific genes remains unaffected in the Insl6(-/-) testes. These results demonstrate that INSL6 is required for the progression of spermatogenesis.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1945-7170
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
150
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4348-57
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Inactivation of insulin-like factor 6 disrupts the progression of spermatogenesis at late meiotic prophase.
pubmed:affiliation
Institute of Human Genetics, University of Göttingen, D-37073 Göttingen, Germany.
pubmed:publicationType
Journal Article