GnRH replacement rescues cognition in Down syndrome

Author:

Manfredi-Lozano Maria12ORCID,Leysen Valerie12,Adamo Michela34ORCID,Paiva Isabel5ORCID,Rovera Renaud6ORCID,Pignat Jean-Michel7,Timzoura Fatima Ezzahra12ORCID,Candlish Michael8,Eddarkaoui Sabiha1ORCID,Malone Samuel A.12ORCID,Silva Mauro S. B.12ORCID,Trova Sara12ORCID,Imbernon Monica12,Decoster Laurine12,Cotellessa Ludovica12ORCID,Tena-Sempere Manuel9ORCID,Claret Marc1011ORCID,Paoloni-Giacobino Ariane12ORCID,Plassard Damien13ORCID,Paccou Emmanuelle3,Vionnet Nathalie3ORCID,Acierno James3,Maceski Aleksandra Maleska14ORCID,Lutti Antoine15ORCID,Pfrieger Frank16ORCID,Rasika S.12ORCID,Santoni Federico4ORCID,Boehm Ulrich8ORCID,Ciofi Philippe17,Buée Luc1ORCID,Haddjeri Nasser6,Boutillier Anne-Laurence5ORCID,Kuhle Jens14,Messina Andrea34ORCID,Draganski Bogdan1518ORCID,Giacobini Paolo12ORCID,Pitteloud Nelly34ORCID,Prevot Vincent12ORCID

Affiliation:

1. Univ. Lille, Inserm, CHU Lille, Lille Neuroscience and Cognition, UMR-S 1172, Labex DistAlz, Lille, France.

2. Laboratory of Development and Plasticity of the Neuroendocrine Brain, FHU 1000 Days for Health, EGID, Lille, France.

3. Department of Endocrinology, Diabetology, and Metabolism, Lausanne University Hospital, Lausanne, Switzerland.

4. Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.

5. Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), UMR 7364, Université de Strasbourg-CNRS, Strasbourg, France.

6. Université de Lyon, Université Claude Bernard Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, Bron, France.

7. Department of Clinical Neurosciences, Neurorehabilitation Unit, University Hospital CHUV, Lausanne, Switzerland.

8. Experimental Pharmacology, Center for Molecular Signaling (PZMS), Saarland University School of Medicine, Homburg, Germany.

9. Universidad de Córdoba, IMIBC/HURS, CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Córdoba, Spain.

10. Neuronal Control of Metabolism Laboratory, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

11. Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain.

12. Department of Genetic Medicine, University Hospitals of Geneva, Genève, Switzerland.

13. CNRS UMR 7104, INSERM U1258, GenomEast Platform, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, Illkirch, France.

14. Neurologic Clinic and Polyclinic, MS Centre and Research Centre for Clinical Neuroimmunology and Neuroscience Basel, University Hospital Basel, University of Basel, Basel, Switzerland.

15. Laboratory for Research in Neuroimaging (LREN), Centre for Research in Neurosciences, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.

16. Centre National de la Recherche Scientifique, Université de Strasbourg, Institut des Neurosciences Cellulaires et Intégratives, Strasbourg, France.

17. Université de Bordeaux, Inserm, U1215, Neurocentre Magendie, Bordeaux, France.

18. Neurology Department, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.

Abstract

At the present time, no viable treatment exists for cognitive and olfactory deficits in Down syndrome (DS). We show in a DS model (Ts65Dn mice) that these progressive nonreproductive neurological symptoms closely parallel a postpubertal decrease in hypothalamic as well as extrahypothalamic expression of a master molecule that controls reproduction—gonadotropin-releasing hormone (GnRH)—and appear related to an imbalance in a microRNA-gene network known to regulate GnRH neuron maturation together with altered hippocampal synaptic transmission. Epigenetic, cellular, chemogenetic, and pharmacological interventions that restore physiological GnRH levels abolish olfactory and cognitive defects in Ts65Dn mice, whereas pulsatile GnRH therapy improves cognition and brain connectivity in adult DS patients. GnRH thus plays a crucial role in olfaction and cognition, and pulsatile GnRH therapy holds promise to improve cognitive deficits in DS.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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