Reference : Cellular localization of IGF-I and IGF-II mRNAs in immature hypophysectomized rat tes...
Scientific journals : Article
Human health sciences : Hematology
Cellular localization of IGF-I and IGF-II mRNAs in immature hypophysectomized rat testis and epididymis after in vivo hormonal treatment.
Dombrowicz, D. [> > > >]
Hooghe-Peters, E. L. [> > > >]
GOTHOT, André mailto [Centre Hospitalier Universitaire de Liège - CHU > > Hématologie biologique et immuno hématologie >]
Sente, B. [> > > >]
Vanhaelst, L. [Université de Liège - ULiège > Sciences et technologie de l'environnement > Physique des bio-systèmes]
Closset, Jean-Louis [Université de Liège - ULiège > Services généraux (Faculté de médecine) > Relations académiques et scientifiques (Médecine)]
HENNEN, Georges [Centre Hospitalier Universitaire de Liège - CHU > > Endocrinologie clinique >]
Archives Internationales de Physiologie, de Biochimie et de Biophysique
Yes (verified by ORBi)
[en] Animals ; Epididymis/drug effects/metabolism ; Follicle Stimulating Hormone/pharmacology ; Gene Expression/drug effects ; Growth Hormone/pharmacology ; Hypophysectomy ; Immunohistochemistry ; In Situ Hybridization ; Insulin-Like Growth Factor I/genetics ; Insulin-Like Growth Factor II/genetics ; Leydig Cells/drug effects/metabolism ; Luteinizing Hormone/pharmacology ; Male ; Prolactin/pharmacology ; RNA, Messenger/analysis ; Rats ; Rats, Wistar ; Sertoli Cells/drug effects/metabolism ; Spermatozoa/drug effects/metabolism ; Testis/drug effects/metabolism
[en] IGF-I and II genes expression has been localized by in situ hybridization in testis and epididymis of immature hypophysectomized rats treated in vivo with either pFSH, hLH, bGH, hPRL or with saline. IGF-I mRNA expression was found in both Sertoli and Leydig cells after treatment with either FSH or LH. IGF-I mRNA was highly expressed in germ cells after FSH stimulation and to a lesser extent after GH or LH treatments. However, its expression was very low in hypophysectomized control or PRL treated rats. IGF-I mRNA was also expressed in stromal cells of epididymis after LH treatment and to a lesser extent after GH stimulation. In contrast, IGF-II mRNA expression was detected in all testicular cell types whatever the hormonal treatment (FSH, LH, GH, PRL). For each hormonal treatment testicular sections were examined after immunohistochemical staining with specific antisera against IGF-I and IGF-II. Both in situ hybridization and immunohistochemical data were examined in order to determine the testicular sites of synthesis of IGF-I and IGF-II.

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