Endocrine Abstracts

The hypothalamic decapeptide, gonadotropin-releasing hormone (GnRH), is the key neuroendocrine regulator of mammalian reproductive development and function. GnRH binds to its target, the GnRH receptor (GnRHR), on pituitary gonadotropes to stimulate the synthesis and intermittent release of the gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), which in turn stimulate gametogenesis and gonadal hormone synthesis. Thus GnRH, via the GnRHR, plays a piv...

Mkrn3, the maternally imprinted gene encoding the makorin RING-finger protein-3, has recently emerged as putative pubertal repressor, as evidenced by central precocity caused by MKRN3 mutations in humans; yet, the molecular underpinnings of this key regulatory action remain largely unexplored. We report herein that the microRNA, miR-30, with three binding sites in a highly conserved region of its 3’-untranslated region (UTR), operates as repressor of Mkrn3 to control pube...