ISSN 1662-4009 (online)

ey0019.7-7 | Basic Science | ESPEYB19

7.7. Connecting nutritional deprivation and pubertal inhibition via GRK2-mediated repression of kisspeptin actions in GnRH neurons

C Perdices-Lopez , MS Avendano , A Barroso , F Gaytan , F Ruiz-Pino , MJ Vazquez , S Leon , YB Song , V Sobrino , V Heras , A Romero-Ruiz , J Roa , F Jr Mayor , C Murga , L Pinilla , UB Kaiser , M. Tena-Sempere

Metabolism. 2022 Apr;129:155141. doi: 10.1016/j.metabol.2022.155141. Epub 2022 Jan 22. PMID: 35074314. https://www.metabolismjournal.com/article/S0026-0495(22)00019-1/fulltextBrief Summary: the authors used pharmacological and transgenic models to demonstrate the role of GRK2, G protein coupled-recept...

ey0016.7-2 | Basic Science | ESPEYB16

7.2. SIRT1 mediates obesity- and nutrient-dependent perturbation of pubertal timing by epigenetically controlling Kiss1 expression

MJ Vazquez , CA Toro , JM Castellano , F Ruiz-Pino , J Roa , D Beiroa , V Heras , I Velasco , C Dieguez , L Pinilla , F Gaytan , R Nogueiras , MA Bosch , OK Ronnekleiv , A Lomniczi , SR Ojeda , M Tena-Sempere

To read the full abstract: Nat Commun. 2018 Oct 10;9(1):4194.This study identifies Sirtuin 1 (SIRT1), a fuel-sensing deacetylase, as a molecule that restrains female puberty via epigenetic repression of the puberty-activating gene, Kiss1 in rats.The last few years have brought evidence regarding the epigenetic control of the onset of puberty. It is now cle...

ey0018.7-10 | Basic Science | ESPEYB18

7.10. Central ceramide signaling mediates obesity-induced precocious Puberty

V Heras , JM Castellano , D Fernandois , I Velasco , E Rodriguez-Vazquez , J Roa , MJ Vazquez , F Ruiz-Pino , M Rubio , R Pineda , E Torres , MS Avendano , A Paredes , L Pinilla , D Belsham , C Dieguez , F Gaytan , N Casals , M Lopez , M Tena-Sempere

Cell Metab. 2020 Dec 1;32(6):951–966.e8. 10.1016/j.cmet.2020.10.001. PMID: 33080217. https://www.sciencedirect.com/science/article/pii/S1550413120305349?via%3DihubIn brief: This study reveals the critical role of hypothalamic ceramide synthesis in the induction of precocious puberty in obe...

ey0017.7-12 | Basic Science | ESPEYB17

7.12. Hypothalamic miR-30 regulates puberty onset via repression of the puberty-suppressing factor, Mkrn3

V Heras , S Sangiao-Alvarellos , M Manfredi-Lozano , MJ Sanchez-Tapia , F Ruiz- Pino , J Roa , M Lara-Chica , R Morrugares-Carmona , N Jouy , AP Abreu , V Prevot , D Belsham , MJ Vazquez , MA Calzado , L Pinilla , F Gaytan , AC Latronico , UB Kaiser , JM Castellano , M Tena-Sempere

To read the full abstract: PLoS biology vol. 17,11 e3000532. 7 Nov. 2019. doi: https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3000532This study unravels the role of the miR-30/Mkrn3 pathway in the hypothalamic regulation of puberty Puberty onset is triggered by a hypothalamic network of interconnected...

ey0016.7-3 | Basic Science | ESPEYB16

7.3. Metabolic regulation of female puberty via hypothalamic AMPK-kisspeptin signaling

J Roa , A Barroso , F Ruiz-Pino , MJ Vazquez , P Seoane-Collazo , N Martinez-Sanchez , D Garcia-Galiano , T Ilhan , R Pineda , S Leon , M Manfredi-Lozano , V Heras , M Poutanen , JM Castellano , F Gaytan , C Dieguez , L Pinilla , M Lopez , M Tena-Sempere

To read the full abstract: Proc Natl Acad Sci U S A. 2018 Nov 6;115(45):E10758–E10767.The authors show for the first time that central AMP-activated protein kinase (AMPK), the major cellular energy sensor, interplays with Kiss1 to control puberty onset.AMPK is an indispensable cellular energy sensor (1). Beside its ability to directly sense ener...

ey0020.5-11 | Basic Research | ESPEYB20

5.11. Dicer ablation in Kiss1 neurons impairs puberty and fertility preferentially in female mice

J Roa , M Ruiz-Cruz , F Ruiz-Pino , R Onieva , MJ Vazquez , MJ Sanchez-Tapia , JM Ruiz-Rodriguez , V Sobrino , A Barroso , V Heras , I Velasco , C Perdices-Lopez , C Ohlsson , MS Avendano , V Prevot , M Poutanen , L Pinilla , F Gaytan , M Tena-Sempere

Brief summary: A newly developed mouse model of congenital ablation of Dicer in kisspeptin neurons was used to identify a role for miRNAs in kisspeptin neuron activity and control of reproduction.The last few years have seen a shift in paradigm with the discovery of epigenetic mechanisms regulating GnRH neuron activity and thus puberty and reproduction. In particular, miRNAs appear to play a crucial role in the maturation and function of the hypothalamic...