Demonstration of mRNAs for oxytocin and prolactin in porcine granulosa and luteal cells. Effects of these hormones on progesterone secretion in vitro.
The relative levels of mRNAs for relaxin, prolactin, inhibin and oxytocin have been measured in porcine granulosa as well as luteal cells by hybridisation to single-stranded synthetic DNA. The likelihood of a paracrine function of oxytocin and prolactin in the porcine ovary was inferred from the in vitro effects of both hormones on progesterone secretion of ovarian cells. Both hormones were found to inhibit progesterone secretion of luteal cells. In contrast, only prolactin but not oxytocin stimulated progesterone secretion in granulosa cells.
D000818:Animals; D001483:Base Sequence; D003338:Corpus Luteum / Q000032:analysis*; D005260:Female; D006107:Granulosa Cells / Q000032:analysis*; D006801:Humans; D007265:Inhibins / Q000235:genetics; D009693:Nucleic Acid Hybridization; D010121:Oxytocin / Q000235:genetics*; D011061:Poly A / Q000032:analysis; D011374:Progesterone / Q000378:metabolism*; D011388:Prolactin / Q000235:genetics*; D012313:RNA / Q000032:analysis; D012333:RNA, Messenger / Q000032:analysis*; D012065:Relaxin / Q000235:genetics; D013552:Swine
D012333:RNA, Messenger; D011061:Poly A; D011374:Progesterone; D010121:Oxytocin; D007265:Inhibins; D012313:RNA; D011388:Prolactin; D012065:Relaxin