| First Author | Di Sante G | Year | 2015 |
| Journal | Mol Endocrinol | Volume | 29 |
| Issue | 2 | Pages | 200-12 |
| PubMed ID | 25545407 | Mgi Jnum | J:223236 |
| Mgi Id | MGI:5648578 | Doi | 10.1210/me.2014-1228 |
| Citation | Di Sante G, et al. (2015) Sirt1-deficient mice have hypogonadotropic hypogonadism due to defective GnRH neuronal migration. Mol Endocrinol 29(2):200-12 |
| abstractText | Hypogonadatropic hypogonadism (HH) can be acquired through energy restriction or may be inherited as congenital hypogonadotropic hypogonadism and its anosmia-associated form, Kallmann's syndrome. Congenital hypogonadotropic hypogonadism is associated with mutations in a group of genes that impact fibroblast growth factor 8 (FGF8) function. The Sirt1 gene encodes a nicotinamide adenine dinucleotide-dependent histone deacetylase that links intracellular metabolic stress to gene expression. Herein Sirt1(-/-) mice are shown to have HH due to failed GnRH neuronal migration. Sirtuin-1 (Sirt1) catalytic function induces GnRH neuronal migration via binding and deacetylating cortactin. Sirt1 colocalized with cortactin in GnRH neurons in vitro. Sirt1 colocalization with cortactin was regulated in an FGF8/fibroblast growth factor receptor-1 dependent manner. The profound effect of Sirt1 on the hormonal status of Sirt1(-/-) mice, mediated via defective GnRH neuronal migration, links energy metabolism directly to the hypogonadal state. Sirt1-cortactin may serve as the distal transducer of neuronal migration mediated by the FGF8 synexpression group of genes that govern HH. |
