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Iskandar K, Foo J, Liew AQX, Zhu H, Raman D, Hirpara JL, Leong YY, Babak MV, Kirsanova AA, Armand AS, Oury F, Bellot G, Pervaiz S. A novel MTORC2-AKT-ROS axis triggers mitofission and mitophagy-associated execution of colorectal cancer cells upon drug-induced activation of mutant KRAS. Autophagy 2024:1-24. [PMID: 38261660 DOI: 10.1080/15548627.2024.2307224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 01/13/2024] [Indexed: 01/25/2024] Open
Abstract
RAS is one of the most commonly mutated oncogenes associated with multiple cancer hallmarks. Notably, RAS activation induces intracellular reactive oxygen species (ROS) generation, which we previously demonstrated as a trigger for autophagy-associated execution of mutant KRAS-expressing cancer cells. Here we report that drug (merodantoin; C1)-induced activation of mutant KRAS promotes phospho-AKT S473-dependent ROS-mediated S616 phosphorylation and mitochondrial localization of DNM1L/DRP1 (dynamin 1 like) and cleavage of the fusion-associated protein OPA1 (OPA1 mitochondrial dynamin like GTPase). Interestingly, accumulation of the outer mitochondrial membrane protein VDAC1 (voltage dependent anion channel 1) is observed in mutant KRAS-expressing cells upon exposure to C1. Conversely, silencing VDAC1 abolishes C1-induced mitophagy, and gene knockdown of either KRAS, AKT or DNM1L rescues ROS-dependent VDAC1 accumulation and stability, thus suggesting an axis of mutant active KRAS-phospho-AKT S473-ROS-DNM1L-VDAC1 in mitochondrial morphology change and cancer cell execution. Importantly, we identified MTOR (mechanistic target of rapamycin kinsase) complex 2 (MTORC2) as the upstream mediator of AKT phosphorylation at S473 in our model. Pharmacological or genetic inhibition of MTORC2 abrogated C1-induced phosphorylation of AKT S473, ROS generation and mitophagy induction, as well as rescued tumor colony forming ability and migratory capacity. Finally, increase in thermal stability of KRAS, AKT and DNM1L were observed upon exposure to C1 only in mutant KRAS-expressing cells. Taken together, our work has unraveled a novel mechanism of selective targeting of mutant KRAS-expressing cancers via MTORC2-mediated AKT activation and ROS-dependent mitofission, which could have potential therapeutic implications given the relative lack of direct RAS-targeting strategies in cancer.Abbreviations: ACTB/ß-actin: actin beta; AKT: AKT serine/threonine kinase; C1/merodantoin: 1,3-dibutyl-2-thiooxo-imidazoldine-4,5-dione; CAT: catalase; CETSA: cellular thermal shift assay; CHX: cycloheximide; DKO: double knockout; DNM1L/DRP1: dynamin 1 like; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; H2O2: hydrogen peroxide; HSPA1A/HSP70-1: heat shock protein family A (Hsp70) member 1A; HSP90AA1/HSP90: heat shock protein 90 alpha family class A member 1; KRAS: KRAS proto-oncogene, GTPase; MAP1LC3B/LC3B, microtubule associated protein 1 light chain 3 beta; LC3B-I: unlipidated form of LC3B; LC3B-II: phosphatidylethanolamine-conjugated form of LC3B; MAPKAP1/SIN1: MAPK associated protein 1; MAPK1/ERK2: mitogen-activated protein kinase 1; MAPK3/ERK1: mitogen-activated protein kinase 3; MFI: mean fluorescence intensity; MiNA: Mitochondrial Network Analysis; MTOR: mechanistic target of rapamycin kinase; MTORC1: mechanistic target of rapamycin kinase complex 1; MTORC2: mechanistic target of rapamycin kinase complex 2; O2.-: superoxide; OMA1: OMA1 zinc metallopeptidase; OPA1: OPA1 mitochondrial dynamin like GTPase; RICTOR: RPTOR independent companion of MTOR complex 2; ROS: reactive oxygen species; RPTOR/raptor: regulatory associated protein of MTOR complex 1; SOD1: superoxide dismutase 1; SOD2: superoxide dismutase 2; SQSTM1/p62: sequestosome 1; VDAC1: voltage dependent anion channel 1; VDAC2: voltage dependent anion channel 2.
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Affiliation(s)
- Kartini Iskandar
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jonathan Foo
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Integrative Science and Engineering Programme (ISEP), NUS Graduate School (NUSGS), National University of Singapore, Singapore
| | - Angeline Qiu Xia Liew
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Integrative Science and Engineering Programme (ISEP), NUS Graduate School (NUSGS), National University of Singapore, Singapore
| | - Haiyuxin Zhu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Deepika Raman
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Yan Yi Leong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Maria V Babak
- Drug Discovery Laboratory, Department of Chemistry, City University of Hong Kong, Hong Kong, SAR, China
| | - Anna A Kirsanova
- Drug Discovery Laboratory, Department of Chemistry, City University of Hong Kong, Hong Kong, SAR, China
| | - Anne-Sophie Armand
- Institut Necker Enfants Malades (INEM), INSERM U1151, Université Paris Cité, Paris, France
| | - Franck Oury
- Institut Necker Enfants Malades (INEM), INSERM U1151, Université Paris Cité, Paris, France
| | - Gregory Bellot
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shazib Pervaiz
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Integrative Science and Engineering Programme (ISEP), NUS Graduate School (NUSGS), National University of Singapore, Singapore
- NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- NUS Medicine Healthy Longevity Program, National University of Singapore, Singapore
- National University Cancer Institute, National University Health System, Singapore
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Correa Pinto Junior D, Canal Delgado I, Yang H, Clemenceau A, Corvelo A, Narzisi G, Musunuri R, Meyer Berger J, Hendricks LE, Tokumura K, Luo N, Li H, Oury F, Ducy P, Yadav VK, Li X, Karsenty G. Osteocalcin of maternal and embryonic origins synergize to establish homeostasis in offspring. EMBO Rep 2024; 25:593-615. [PMID: 38228788 PMCID: PMC10897216 DOI: 10.1038/s44319-023-00031-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/24/2023] [Accepted: 12/01/2023] [Indexed: 01/18/2024] Open
Abstract
Many physiological osteocalcin-regulated functions are affected in adult offspring of mothers experiencing unhealthy pregnancy. Furthermore, osteocalcin signaling during gestation influences cognition and adrenal steroidogenesis in adult mice. Together these observations suggest that osteocalcin may broadly function during pregnancy to determine organismal homeostasis in adult mammals. To test this hypothesis, we analyzed in unchallenged wildtype and Osteocalcin-deficient, newborn and adult mice of various genotypes and origin maintained on different genetic backgrounds, the functions of osteocalcin in the pancreas, liver and testes and their molecular underpinnings. This analysis revealed that providing mothers are Osteocalcin-deficient, Osteocalcin haploinsufficiency in embryos hampers insulin secretion, liver gluconeogenesis, glucose homeostasis, testes steroidogenesis in adult offspring; inhibits cell proliferation in developing pancreatic islets and testes; and disrupts distinct programs of gene expression in these organs and in the brain. This study indicates that osteocalcin exerts dominant functions in most organs it influences. Furthermore, through their synergistic regulation of multiple physiological functions, osteocalcin of maternal and embryonic origins contributes to the establishment and maintenance of organismal homeostasis in newborn and adult offspring.
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Affiliation(s)
- Danilo Correa Pinto Junior
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Isabella Canal Delgado
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Haiyang Yang
- Guangdong Provincial Key Laboratory of Brain Connectome, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, China
| | - Alisson Clemenceau
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | | | | | | | - Julian Meyer Berger
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Lauren E Hendricks
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Kazuya Tokumura
- Department of Bioactive Molecules, Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
| | - Na Luo
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Hongchao Li
- Guangdong Provincial Key Laboratory of Brain Connectome, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, China
| | - Franck Oury
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Université Paris Descartes-Sorbonne, Paris Cité, Paris, France.
| | - Patricia Ducy
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
| | - Vijay K Yadav
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
| | - Xiang Li
- Guangdong Provincial Key Laboratory of Brain Connectome, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, China.
| | - Gerard Karsenty
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
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Ramos-Brossier M, Romeo-Guitart D, Lanté F, Boitez V, Mailliet F, Saha S, Rivagorda M, Siopi E, Nemazanyy I, Leroy C, Moriceau S, Beck-Cormier S, Codogno P, Buisson A, Beck L, Friedlander G, Oury F. Slc20a1 and Slc20a2 regulate neuronal plasticity and cognition independently of their phosphate transport ability. Cell Death Dis 2024; 15:20. [PMID: 38195526 PMCID: PMC10776841 DOI: 10.1038/s41419-023-06292-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 11/01/2023] [Accepted: 11/13/2023] [Indexed: 01/11/2024]
Abstract
In recent years, primary familial brain calcification (PFBC), a rare neurological disease characterized by a wide spectrum of cognitive disorders, has been associated to mutations in the sodium (Na)-Phosphate (Pi) co-transporter SLC20A2. However, the functional roles of the Na-Pi co-transporters in the brain remain still largely elusive. Here we show that Slc20a1 (PiT-1) and Slc20a2 (PiT-2) are the most abundant Na-Pi co-transporters expressed in the brain and are involved in the control of hippocampal-dependent learning and memory. We reveal that Slc20a1 and Slc20a2 are differentially distributed in the hippocampus and associated with independent gene clusters, suggesting that they influence cognition by different mechanisms. Accordingly, using a combination of molecular, electrophysiological and behavioral analyses, we show that while PiT-2 favors hippocampal neuronal branching and survival, PiT-1 promotes synaptic plasticity. The latter relies on a likely Otoferlin-dependent regulation of synaptic vesicle trafficking, which impacts the GABAergic system. These results provide the first demonstration that Na-Pi co-transporters play key albeit distinct roles in the hippocampus pertaining to the control of neuronal plasticity and cognition. These findings could provide the foundation for the development of novel effective therapies for PFBC and cognitive disorders.
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Affiliation(s)
- Mariana Ramos-Brossier
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 8, F-75015, Paris, France.
| | - David Romeo-Guitart
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 8, F-75015, Paris, France
| | - Fabien Lanté
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000, Grenoble, France
| | - Valérie Boitez
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 8, F-75015, Paris, France
| | - François Mailliet
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 8, F-75015, Paris, France
| | - Soham Saha
- Institut Pasteur, Perception & Memory Unit, F-75015, Paris, France
- MedInsights, 6 rue de l'église, F-02810, Veuilly la Poterie, France
| | - Manon Rivagorda
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 8, F-75015, Paris, France
| | - Eleni Siopi
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 8, F-75015, Paris, France
| | - Ivan Nemazanyy
- Platform for Metabolic Analyses, Structure Fédérative de Recherche Necker, INSERM US24/CNRS UAR, 3633, Paris, France
| | - Christine Leroy
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 6, F-75015, Paris, France
| | - Stéphanie Moriceau
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 8, F-75015, Paris, France
- Platform for Neurobehavioural and metabolism, Structure Fédérative de Recherche Necker, INSERM, US24/CNRS UAR, 3633, Paris, France
- Institute of Genetic Diseases, Imagine, 75015, Paris, France
| | - Sarah Beck-Cormier
- Nantes Université, CNRS, Inserm, l'Institut du Thorax, F-44000, Nantes, France
| | - Patrice Codogno
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 6, F-75015, Paris, France
| | - Alain Buisson
- Univ. Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000, Grenoble, France
| | - Laurent Beck
- Nantes Université, CNRS, Inserm, l'Institut du Thorax, F-44000, Nantes, France.
| | - Gérard Friedlander
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 6, F-75015, Paris, France.
| | - Franck Oury
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 8, F-75015, Paris, France.
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4
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Pinto DC, Delgado IC, Yang H, Clemenceau A, Corvelo A, Narzisi G, Musunuri R, Berger JM, Hendricks LE, Tokumura K, Luo N, Li H, Oury F, Ducy P, Yadav VK, Li X, Karsenty G. Osteocalcin of maternal and embryonic origins synergize to establish homeostasis in offspring. bioRxiv 2023:2023.08.11.552969. [PMID: 37645714 PMCID: PMC10462025 DOI: 10.1101/2023.08.11.552969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Many physiological functions regulated by osteocalcin are affected in adult offspring of mothers experiencing an unhealthy pregnancy. Furthermore, osteocalcin signaling during gestation influences cognition and adrenal steroidogenesis in adult mice. Together these observations suggest that osteocalcin functions during pregnancy may be a broader determinant of organismal homeostasis in adult mammals than previously thought. To test this hypothesis, we analyzed in unchallenged wildtype and Osteocalcin -deficient, newborn, and adult mice of various genotypes and origin, and that were maintained on different genetic backgrounds, the functions of osteocalcin in the pancreas, liver and testes and their molecular underpinnings. This analysis revealed that providing mothers are themselves Osteocalcin -deficient, Osteocalcin haploinsufficiency in embryos hampers insulin secretion, liver gluconeogenesis, glucose homeostasis, testes steroidogenesis in adult offspring; inhibits cell proliferation in developing pancreatic islets and testes; and disrupts distinct programs of gene expression in these organs and in the brain. This study indicates that through their synergistic regulation of multiple physiological functions, osteocalcin ofmaternal and embryonic origins contributes to the establishment and maintenance of organismal homeostasis in newborn and adult offspring.
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5
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Moigneu C, Abdellaoui S, Ramos-Brossier M, Pfaffenseller B, Wollenhaupt-Aguiar B, de Azevedo Cardoso T, Camus C, Chiche A, Kuperwasser N, Azevedo da Silva R, Pedrotti Moreira F, Li H, Oury F, Kapczinski F, Lledo PM, Katsimpardi L. Author Correction: Systemic GDF11 attenuates depression-like phenotype in aged mice via stimulation of neuronal autophagy. Nat Aging 2023; 3:1036. [PMID: 37328576 PMCID: PMC10432265 DOI: 10.1038/s43587-023-00454-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Affiliation(s)
- Carine Moigneu
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France
| | - Soumia Abdellaoui
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France
- Institut Necker Enfants Malades, INSERM UMR-S1151, Université Paris Cité, Paris, France
| | | | - Bianca Pfaffenseller
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| | | | | | - Claire Camus
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France
| | - Aurélie Chiche
- Cellular Plasticity in Age-Related Pathologies Laboratory, Institut Pasteur, Université Paris Cité, CNRS UMR3738, Paris, France
| | - Nicolas Kuperwasser
- Institut Necker Enfants Malades, INSERM UMR-S1151, Université Paris Cité, Paris, France
| | | | | | - Han Li
- Cellular Plasticity in Age-Related Pathologies Laboratory, Institut Pasteur, Université Paris Cité, CNRS UMR3738, Paris, France
| | - Franck Oury
- Institut Necker Enfants Malades, INSERM UMR-S1151, Université Paris Cité, Paris, France
| | - Flávio Kapczinski
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, Brazil
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Pierre-Marie Lledo
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France.
| | - Lida Katsimpardi
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France.
- Institut Necker Enfants Malades, INSERM UMR-S1151, Université Paris Cité, Paris, France.
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Siopi E, Galerne M, Rivagorda M, Saha S, Moigneu C, Moriceau S, Bigot M, Oury F, Lledo PM. Gut microbiota changes require vagus nerve integrity to promote depressive-like behaviors in mice. Mol Psychiatry 2023; 28:3002-3012. [PMID: 37131071 PMCID: PMC10615761 DOI: 10.1038/s41380-023-02071-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 04/03/2023] [Accepted: 04/11/2023] [Indexed: 05/04/2023]
Abstract
Chronic stress constitutes a major risk factor for depression that can disrupt various aspects of homeostasis, including the gut microbiome (GM). We have recently shown that GM imbalance affects adult hippocampal (HPC) neurogenesis and induces depression-like behaviors, with the exact mechanisms being under active investigation. Here we hypothesized that the vagus nerve (VN), a key bidirectional route of communication between the gut and the brain, could relay the effects of stress-induced GM changes on HPC plasticity and behavior. We used fecal samples derived from mice that sustained unpredictable chronic mild stress (UCMS) to inoculate healthy mice and assess standard behavioral readouts for anxiety- and depressive-like behavior, conduct histological and molecular analyses for adult HPC neurogenesis and evaluate neurotransmission pathways and neuroinflammation. To study the potential role of the VN in mediating the effects of GM changes on brain functions and behavior, we used mice that sustained subdiaphragmatic vagotomy (Vx) prior the GM transfer. We found that inoculation of healthy mice with GM from UCMS mice activates the VN and induces early and sustained changes in both serotonin and dopamine neurotransmission pathways in the brainstem and HPC. These changes are associated with prompt and persistent deficits in adult HPC neurogenesis and induce early and sustained neuroinflammatory responses in the HPC. Remarkably, Vx abrogates adult HPC neurogenesis deficits, neuroinflammation and depressive-like behavior, suggesting that vagal afferent pathways are necessary to drive GM-mediated effects on the brain.
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Affiliation(s)
- Eleni Siopi
- Institut Pasteur, Université Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015, Paris, France.
- Université Paris Cité, CNRS, INSERM, Institut Necker Enfants Malades-INEM, 75015, Paris, France.
| | - Mathieu Galerne
- Université Paris Cité, CNRS, INSERM, Institut Necker Enfants Malades-INEM, 75015, Paris, France
| | - Manon Rivagorda
- Université Paris Cité, CNRS, INSERM, Institut Necker Enfants Malades-INEM, 75015, Paris, France
| | - Soham Saha
- Institut Pasteur, Université Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015, Paris, France
| | - Carine Moigneu
- Institut Pasteur, Université Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015, Paris, France
| | - Stéphanie Moriceau
- Platform for Neurobehavior and Metabolism, Structure Fédérative de Recherche Necker, 26 INSERM US24/CNRS UAR 3633, 75015, Paris, France
| | - Mathilde Bigot
- Institut Pasteur, Université Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015, Paris, France
| | - Franck Oury
- Université Paris Cité, CNRS, INSERM, Institut Necker Enfants Malades-INEM, 75015, Paris, France
| | - Pierre-Marie Lledo
- Institut Pasteur, Université Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015, Paris, France.
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Oury F, Pierani A. Transient perinatal metabolic shifts determine neuronal survival and functional circuit formation. Cell 2023; 186:1819-1821. [PMID: 37116467 DOI: 10.1016/j.cell.2023.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 04/30/2023]
Abstract
Metabolic changes are essential for neurodevelopmental processes. However, little is known about how and when neuronal metabolic remodeling occurs to promote functional circuits. In this issue of Cell, Knaus et al. demonstrate that a temporary perinatal shift in metabolites and lipids is crucial for cortical neurons' survival and wiring.
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Affiliation(s)
- Franck Oury
- Université Paris Cité, CNRS, INSERM, Institut Necker Enfants Malades-INEM, F-75015 Paris, France
| | - Alessandra Pierani
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, F-75015 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, F-75014 Paris, France; GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte Anne, F-75014 Paris, France.
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Riva M, Moriceau S, Morabito A, Dossi E, Sanchez-Bellot C, Azzam P, Navas-Olive A, Gal B, Dori F, Cid E, Ledonne F, David S, Trovero F, Bartolomucci M, Coppola E, Rebola N, Depaulis A, Rouach N, de la Prida LM, Oury F, Pierani A. Aberrant survival of hippocampal Cajal-Retzius cells leads to memory deficits, gamma rhythmopathies and susceptibility to seizures in adult mice. Nat Commun 2023; 14:1531. [PMID: 36934089 PMCID: PMC10024761 DOI: 10.1038/s41467-023-37249-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 03/08/2023] [Indexed: 03/20/2023] Open
Abstract
Cajal-Retzius cells (CRs) are transient neurons, disappearing almost completely in the postnatal neocortex by programmed cell death (PCD), with a percentage surviving up to adulthood in the hippocampus. Here, we evaluate CR's role in the establishment of adult neuronal and cognitive function using a mouse model preventing Bax-dependent PCD. CRs abnormal survival resulted in impairment of hippocampus-dependent memory, associated in vivo with attenuated theta oscillations and enhanced gamma activity in the dorsal CA1. At the cellular level, we observed transient changes in the number of NPY+ cells and altered CA1 pyramidal cell spine density. At the synaptic level, these changes translated into enhanced inhibitory currents in hippocampal pyramidal cells. Finally, adult mutants displayed an increased susceptibility to lethal tonic-clonic seizures in a kainate model of epilepsy. Our data reveal that aberrant survival of a small proportion of postnatal hippocampal CRs results in cognitive deficits and epilepsy-prone phenotypes in adulthood.
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Affiliation(s)
- Martina Riva
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015, Paris, France
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014, Paris, France
| | - Stéphanie Moriceau
- Platform for Neurobehavioral and metabolism, Structure Fédérative de Recherche Necker, 26 INSERM US24/CNRS UAR, 3633, Paris, France
| | - Annunziato Morabito
- Sorbonne Université, Institut Du Cerveau-Paris Brain Institute-ICM, Inserm U1127, CNRS UMR 7225, 47 Boulevard de l'Hopital, 75013, Paris, France
| | - Elena Dossi
- Center for Interdisciplinary Research in Biology (CIRB), College de France, CNRS, INSERM, Labex Memolife, Université PSL, Paris, France
| | | | - Patrick Azzam
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015, Paris, France
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014, Paris, France
| | | | - Beatriz Gal
- Instituto Cajal, CSIC, Madrid, Spain
- Universidad Camilo José Cela, Madrid, Spain
| | - Francesco Dori
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015, Paris, France
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014, Paris, France
| | - Elena Cid
- Instituto Cajal, CSIC, Madrid, Spain
| | - Fanny Ledonne
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014, Paris, France
| | - Sabrina David
- Key-Obs SAS, 13 avenue Buffon, 45100, Orléans, France
| | | | - Magali Bartolomucci
- Université Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000, Grenoble, France
| | - Eva Coppola
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014, Paris, France
| | - Nelson Rebola
- Sorbonne Université, Institut Du Cerveau-Paris Brain Institute-ICM, Inserm U1127, CNRS UMR 7225, 47 Boulevard de l'Hopital, 75013, Paris, France
| | - Antoine Depaulis
- Université Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, 38000, Grenoble, France
| | - Nathalie Rouach
- Center for Interdisciplinary Research in Biology (CIRB), College de France, CNRS, INSERM, Labex Memolife, Université PSL, Paris, France
| | | | - Franck Oury
- Université Paris Cité, CNRS, INSERM, Institut Necker Enfants Malades-INEM, 75015, Paris, France
| | - Alessandra Pierani
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015, Paris, France.
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014, Paris, France.
- GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte Anne, 75014, Paris, France.
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9
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Moigneu C, Abdellaoui S, Ramos-Brossier M, Pfaffenseller B, Wollenhaupt-Aguiar B, de Azevedo Cardoso T, Camus C, Chiche A, Kuperwasser N, Azevedo da Silva R, Pedrotti Moreira F, Li H, Oury F, Kapczinski F, Lledo PM, Katsimpardi L. Systemic GDF11 attenuates depression-like phenotype in aged mice via stimulation of neuronal autophagy. Nat Aging 2023; 3:213-228. [PMID: 37118117 PMCID: PMC10154197 DOI: 10.1038/s43587-022-00352-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 12/19/2022] [Indexed: 04/30/2023]
Abstract
Cognitive decline and mood disorders increase in frequency with age. Many efforts are focused on the identification of molecules and pathways to treat these conditions. Here, we demonstrate that systemic administration of growth differentiation factor 11 (GDF11) in aged mice improves memory and alleviates senescence and depression-like symptoms in a neurogenesis-independent manner. Mechanistically, GDF11 acts directly on hippocampal neurons to enhance neuronal activity via stimulation of autophagy. Transcriptomic and biochemical analyses of these neurons reveal that GDF11 reduces the activity of mammalian target of rapamycin (mTOR), a master regulator of autophagy. Using a murine model of corticosterone-induced depression-like phenotype, we also show that GDF11 attenuates the depressive-like behavior of young mice. Analysis of sera from young adults with major depressive disorder (MDD) reveals reduced GDF11 levels. These findings identify mechanistic pathways related to GDF11 action in the brain and uncover an unknown role for GDF11 as an antidepressant candidate and biomarker.
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Affiliation(s)
- Carine Moigneu
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France
| | - Soumia Abdellaoui
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France
- Institut Necker Enfants Malades, INSERM UMR-S1151, Université Paris Cité, Paris, France
| | | | - Bianca Pfaffenseller
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| | | | | | - Claire Camus
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France
| | - Aurélie Chiche
- Cellular Plasticity in Age-Related Pathologies Laboratory, Institut Pasteur, Université Paris Cité, CNRS UMR3738, Paris, France
| | - Nicolas Kuperwasser
- Institut Necker Enfants Malades, INSERM UMR-S1151, Université Paris Cité, Paris, France
| | | | | | - Han Li
- Cellular Plasticity in Age-Related Pathologies Laboratory, Institut Pasteur, Université Paris Cité, CNRS UMR3738, Paris, France
| | - Franck Oury
- Institut Necker Enfants Malades, INSERM UMR-S1151, Université Paris Cité, Paris, France
| | - Flávio Kapczinski
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, Brazil
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Pierre-Marie Lledo
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France.
| | - Lida Katsimpardi
- Perception and Memory Lab, Institut Pasteur, Université Paris Cité, CNRS UMR3571, Paris, France.
- Institut Necker Enfants Malades, INSERM UMR-S1151, Université Paris Cité, Paris, France.
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10
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da Cunha MF, Pranke I, Sassi A, Schreiweis C, Moriceau S, Vidovic D, Hatton A, Carlon MS, Creste G, Berhal F, Prestat G, Freund R, Odolczyk N, Jais JP, Gravier-Pelletier C, Zielenkiewicz P, Jullien V, Hinzpeter A, Oury F, Edelman A, Sermet-Gaudelus I. Systemic bis-phosphinic acid derivative restores chloride transport in Cystic Fibrosis mice. Sci Rep 2022; 12:6132. [PMID: 35413967 PMCID: PMC9005718 DOI: 10.1038/s41598-022-09678-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 02/28/2022] [Indexed: 11/17/2022] Open
Abstract
Mutations in the Cystic Fibrosis Transmembrane Conductance Regulator gene (CFTR) are responsible for Cystic Fibrosis (CF). The most common CF-causing mutation is the deletion of the 508th amino-acid of CFTR (F508del), leading to dysregulation of the epithelial fluid transport in the airway’s epithelium and the production of a thickened mucus favoring chronic bacterial colonization, sustained inflammation and ultimately respiratory failure. c407 is a bis-phosphinic acid derivative which corrects CFTR dysfunction in epithelial cells carrying the F508del mutation. This study aimed to investigate c407 in vivo activity in the F508del Cftrtm1Eur murine model of CF. Using nasal potential difference measurement, we showed that in vivo administration of c407 by topical, short-term intraperitoneal and long-term subcutaneous route significantly increased the CFTR dependent chloride (Cl−) conductance in F508del Cftrtm1Eur mice. This functional improvement was correlated with a relocalization of F508del-cftr to the apical membrane in nasal epithelial cells. Importantly, c407 long-term administration was well tolerated and in vitro ADME toxicologic studies did not evidence any obvious issue. Our data provide the first in vivo preclinical evidence of c407 efficacy and absence of toxicity after systemic administration for the treatment of Cystic Fibrosis.
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Affiliation(s)
| | - Iwona Pranke
- INSERM U1151, équipe 11, Paris, France.,Université de Paris, Paris, France
| | - Ali Sassi
- INSERM U1151, équipe 11, Paris, France.,Université de Paris, Paris, France
| | | | | | - Dragana Vidovic
- Molecular Virology and Gene Therapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Aurélie Hatton
- INSERM U1151, équipe 11, Paris, France.,Université de Paris, Paris, France
| | - Mariane Sylvia Carlon
- Molecular Virology and Gene Therapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Geordie Creste
- Université de Paris, Paris, France.,UMR 8601, CNRS, LCBPT, Paris, France
| | - Farouk Berhal
- Université de Paris, Paris, France.,UMR 8601, CNRS, LCBPT, Paris, France
| | - Guillaume Prestat
- Université de Paris, Paris, France.,UMR 8601, CNRS, LCBPT, Paris, France
| | - Romain Freund
- Université de Paris, Paris, France.,Unité de Biostatistiques, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Norbert Odolczyk
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland.,Laboratory of Systems Biology, Institute of Experimental Plant Biology and Biotechnology, Warsaw, Poland
| | - Jean Philippe Jais
- Unité de Biostatistiques, Assistance Publique Hôpitaux de Paris, Paris, France
| | | | - Piotr Zielenkiewicz
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland.,Laboratory of Systems Biology, Institute of Experimental Plant Biology and Biotechnology, Warsaw, Poland
| | - Vincent Jullien
- Laboratoire de Bactériologie-Virologie-Hygiène, Hôpital Avicenne, Bobigny, France
| | | | - Franck Oury
- Université de Paris, Paris, France.,INSERM U1151, équipe 8, Paris, France
| | - Aleksander Edelman
- INSERM U1151, équipe 11, Paris, France.,Université de Paris, Paris, France
| | - Isabelle Sermet-Gaudelus
- INSERM U1151, équipe 11, Paris, France. .,Université de Paris, Paris, France. .,Centre de Référence et de Compétence Maladies Rares, Mucoviscidose et maladies apparentées, Hôpital Necker Enfants malades, Paris, France. .,European Reference Network for Rare Respiratory Diseases (ERN-LUNG), Brussels, Belgium. .,Institut Necker Enfants Malades, 160 rue de Vaugirard, 75015, Paris, France.
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11
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Cornille M, Moriceau S, Khonsari RH, Heuzé Y, Loisay L, Boitez V, Morice A, Arnaud E, Collet C, Bensidhoum M, Kaci N, Boddaert N, Paternoster G, Rauschendorfer T, Werner S, Mansour SL, Di Rocco F, Oury F, Legeai-Mallet L. FGFR3 overactivation in the brain is responsible for memory impairments in Crouzon syndrome mouse model. J Exp Med 2022; 219:213050. [PMID: 35254402 PMCID: PMC8906494 DOI: 10.1084/jem.20201879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 06/09/2021] [Accepted: 01/13/2022] [Indexed: 11/04/2022] Open
Abstract
Crouzon syndrome with acanthosis nigricans (CAN, a rare type of craniosynostosis characterized by premature suture fusion and neurological impairments) has been linked to a gain-of-function mutation (p.Ala391Glu) in fibroblast growth factor receptor 3 (FGFR3). To characterize the CAN mutation's impact on the skull and on brain functions, we developed the first mouse model (Fgfr3A385E/+) of this syndrome. Surprisingly, Fgfr3A385E/+ mice did not exhibit craniosynostosis but did show severe memory impairments, a structurally abnormal hippocampus, low activity-dependent synaptic plasticity, and overactivation of MAPK/ERK and Akt signaling pathways in the hippocampus. Systemic or brain-specific pharmacological inhibition of FGFR3 overactivation by BGJ398 injections rescued the memory impairments observed in Fgfr3A385E/+ mice. The present study is the first to have demonstrated cognitive impairments associated with brain FGFR3 overactivation, independently of skull abnormalities. Our results provide a better understanding of FGFR3's functional role and the impact of its gain-of-function mutation on brain functions. The modulation of FGFR3 signaling might be of value for treating the neurological disorders associated with craniosynostosis.
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Affiliation(s)
- Maxence Cornille
- Université de Paris, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, Institut National de la Santé et de la Recherche Médicale UMR1163, Paris, France
| | - Stéphanie Moriceau
- Institut National de la Santé et de la Recherche Médicale U1151, Institut Necker Enfants–Malades, Depart: Cell growth and Signaling, Université Paris-Sorbonne–Paris Cité, Paris, France
| | - Roman H. Khonsari
- Université de Paris, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, Institut National de la Santé et de la Recherche Médicale UMR1163, Paris, France,Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Necker–Enfants Malades, Assistance Publique–Hôpitaux de Paris, Centre de Référence Maladies Rares Fentes et Malformations Faciales MAFACE, Filière Maladies Rares TeteCou, Université de Paris, Paris, France
| | - Yann Heuzé
- UMR5199 PACEA, Centre National de la Recherche Scientifique, Ministère de la Culture, Université de Bordeaux, Pessac, France
| | - Léa Loisay
- Université de Paris, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, Institut National de la Santé et de la Recherche Médicale UMR1163, Paris, France
| | - Valérie Boitez
- Institut National de la Santé et de la Recherche Médicale U1151, Institut Necker Enfants–Malades, Depart: Cell growth and Signaling, Université Paris-Sorbonne–Paris Cité, Paris, France
| | - Anne Morice
- Université de Paris, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, Institut National de la Santé et de la Recherche Médicale UMR1163, Paris, France,Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Necker–Enfants Malades, Assistance Publique–Hôpitaux de Paris, Centre de Référence Maladies Rares Fentes et Malformations Faciales MAFACE, Filière Maladies Rares TeteCou, Université de Paris, Paris, France
| | - Eric Arnaud
- Service de Neurochirurgie, Hôpital Necker–Enfants Malades, Assistance Publique–Hôpitaux de Paris, Centre de Référence Maladies Rares Craniosténoses et Malformations Craniofaciales CRANIOST, Filière Maladies Rares TeteCou, Université de Paris, Paris, France
| | - Corinne Collet
- Service de Biochimie et Biologie Moléculaire–PôleB2P, Centre Hospitalier Universitaire Paris-GH St-Louis Lariboisière F.Widal–Hôpital Lariboisière, Paris, France
| | - Morad Bensidhoum
- LaboratoireB2OA, Unité Mixte de Recherche CNRS7052, Université de Paris, Paris, France
| | - Nabil Kaci
- Université de Paris, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, Institut National de la Santé et de la Recherche Médicale UMR1163, Paris, France
| | - Nathalie Boddaert
- UMR-1163 Institut Imagine, Hôpital Necker–Enfants Malades, Assistance Publique–Hôpitaux de Paris, Paris, France,Département de Radiologie Pédiatrique, Hôpital Necker–Enfants Malades, Assistance Publique–Hôpitaux de Paris, Paris, France
| | - Giovanna Paternoster
- Service de Neurochirurgie, Hôpital Necker–Enfants Malades, Assistance Publique–Hôpitaux de Paris, Centre de Référence Maladies Rares Craniosténoses et Malformations Craniofaciales CRANIOST, Filière Maladies Rares TeteCou, Université de Paris, Paris, France
| | - Theresa Rauschendorfer
- Institute of Molecular Health Sciences, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Sabine Werner
- Institute of Molecular Health Sciences, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | | | - Federico Di Rocco
- Hôpital Femme Mère Enfant Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Franck Oury
- Institut National de la Santé et de la Recherche Médicale U1151, Institut Necker Enfants–Malades, Depart: Cell growth and Signaling, Université Paris-Sorbonne–Paris Cité, Paris, France
| | - Laurence Legeai-Mallet
- Université de Paris, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, Institut National de la Santé et de la Recherche Médicale UMR1163, Paris, France,Correspondence to Laurence Legeai-Mallet:
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12
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Tanaka K, Besson V, Rivagorda M, Oury F, Marazzi G, Sassoon DA. Paternally expressed gene 3 (Pw1/Peg3) promotes sexual dimorphism in metabolism and behavior. PLoS Genet 2022; 18:e1010003. [PMID: 35025875 PMCID: PMC8791484 DOI: 10.1371/journal.pgen.1010003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 01/26/2022] [Accepted: 12/20/2021] [Indexed: 01/06/2023] Open
Abstract
The paternally expressed gene 3 (Pw1/Peg3) is a mammalian-specific parentally imprinted gene expressed in stem/progenitor cells of the brain and endocrine tissues. Here, we compared phenotypic characteristics in Pw1/Peg3 deficient male and female mice. Our findings indicate that Pw1/Peg3 is a key player for the determination of sexual dimorphism in metabolism and behavior. Mice carrying a paternally inherited Pw1/Peg3 mutant allele manifested postnatal deficits in GH/IGF dependent growth before weaning, sex steroid dependent masculinization during puberty, and insulin dependent fat accumulation in adulthood. As a result, Pw1/Peg3 deficient mice develop a sex-dependent global shift of body metabolism towards accelerated adiposity, diabetic-like insulin resistance, and fatty liver. Furthermore, Pw1/Peg3 deficient males displayed reduced social dominance and competitiveness concomitant with alterations in the vasopressinergic architecture in the brain. This study demonstrates that Pw1/Peg3 provides an epigenetic context that promotes male-specific characteristics through sex steroid pathways during postnatal development. Pw1/Peg3 is under parental specific epigenetic regulation. We propose that Pw1/Peg3 confers a selective advantage in mammals by regulating sexual dimorphism. To address this question, we examined the consequences of Pw1/Peg3 loss of function in mice in an age- and sex-dependent context and found that Pw1/Peg3 mutants display reduced sexual dimorphism in growth, metabolism and behaviors. Our findings support the intralocus sexual conflict model of genomic imprinting where it contributes in sexual differentiation. Furthermore, our observations provide a unifying role of sex steroid signaling as a common property of Pw1/Peg3 expressing stem/progenitor cells and differentiated endocrine cells, both of which remain proliferative in response to gonadal hormones in adult life.
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Affiliation(s)
- Karo Tanaka
- Stem Cells and Regenerative Medicine, Institute of Cardiometabolism and Nutrition (ICAN), INSERM U1166, University of Pierre and Marie Curie Paris VI, Paris, France
| | - Vanessa Besson
- Stem Cells and Regenerative Medicine, Institute of Cardiometabolism and Nutrition (ICAN), INSERM U1166, University of Pierre and Marie Curie Paris VI, Paris, France
| | - Manon Rivagorda
- Hormonal Regulation of Brain Development and Functions, INSERM U1151, Institut Necker Enfants Malades, Paris, France
| | - Franck Oury
- Hormonal Regulation of Brain Development and Functions, INSERM U1151, Institut Necker Enfants Malades, Paris, France
| | - Giovanna Marazzi
- Stem Cells and Regenerative Medicine, Institute of Cardiometabolism and Nutrition (ICAN), INSERM U1166, University of Pierre and Marie Curie Paris VI, Paris, France
| | - David A. Sassoon
- Stem Cells and Regenerative Medicine, Institute of Cardiometabolism and Nutrition (ICAN), INSERM U1166, University of Pierre and Marie Curie Paris VI, Paris, France
- * E-mail:
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13
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Thiebaut AM, Buendia I, Ginet V, Lemarchand E, Boudjadja MB, Hommet Y, Lebouvier L, Lechevallier C, Maillasson M, Hedou E, Déglon N, Oury F, Rubio M, Montaner J, Puyal J, Vivien D, Roussel BD. Thrombolysis by PLAT/tPA increases serum free IGF1 leading to a decrease of deleterious autophagy following brain ischemia. Autophagy 2021; 18:1297-1317. [PMID: 34520334 DOI: 10.1080/15548627.2021.1973339] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Cerebral ischemia is a pathology involving a cascade of cellular mechanisms, leading to the deregulation of proteostasis, including macroautophagy/autophagy, and finally to neuronal death. If it is now accepted that cerebral ischemia induces autophagy, the effect of thrombolysis/energy recovery on proteostasis remains unknown. Here, we investigated the effect of thrombolysis by PLAT/tPA (plasminogen activator, tissue) on autophagy and neuronal death. In two in vitro models of hypoxia reperfusion and an in vivo model of thromboembolic stroke with thrombolysis by PLAT/tPA, we found that ischemia enhances neuronal deleterious autophagy. Interestingly, PLAT/tPA decreases autophagy to mediate neuroprotection by modulating the PI3K-AKT-MTOR pathways both in vitro and in vivo. We identified IGF1R (insulin-like growth factor I receptor; a tyrosine kinase receptor) as the effective receptor and showed in vitro, in vivo and in human stroke patients and that PLAT/tPA is able to degrade IGFBP3 (insulin-like growth factor binding protein 3) to increase IGF1 (insulin-like growth factor 1) bioavailability and thus IGF1R activation.Abbreviations: AKT/protein kinase B: thymoma viral proto-oncogene 1; EGFR: epidermal growth factor receptor; Hx: hypoxia; IGF1: insulin-like growth factor 1; IGF1R: insulin-like growth factor I receptor; IGFBP3: insulin-like growth factor binding protein 3; Ka: Kainate; MAP1LC3/LC3: microtubule-associated protein 1 light chain 3; MAPK/ERK: mitogen-activated protein kinase; MTOR: mechanistic target of rapamycin kinase; MTORC1: MTOR complex 1; OGD: oxygen and glucose deprivation; OGDreox: oxygen and glucose deprivation + reoxygentation; PepA: pepstatin A1; PI3K: phosphoinositide 3-kinase; PLAT/tPA: plasminogen activator, tissue; PPP: picropodophyllin; SCH77: SCH772984; ULK1: unc-51 like kinase 1; Wort: wortmannin.
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Affiliation(s)
- Audrey M Thiebaut
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France
| | - Izaskun Buendia
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France
| | - Vanessa Ginet
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,Clinic of Neonatology, Department of Women, Mother and Child, University Hospital Center of Vaud, Lausanne, Switzerland
| | - Eloise Lemarchand
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | | | - Yannick Hommet
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France
| | - Laurent Lebouvier
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France
| | - Charlotte Lechevallier
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France
| | - Mike Maillasson
- Université de Nantes, CNRS, Inserm, CRCINA, F-44000 Nantes, France; LabEx IGO, Immunotherapy, Graft, Oncology, Nantes, France; Université de Nantes, Inserm, CNRS, CHU Nantes, SFR Santé, FED 4203Inserm UMS 016, CNRS, UMS 3556, IMPACT Platform, Nantes, France
| | - Elodie Hedou
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France
| | - Nicole Déglon
- Department of Clinical Neurosciences, Laboratory of Neurotherapies and Neuromodulation, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Franck Oury
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 14, Université Paris Descartes-Sorbonne-Paris Cité, Paris, France
| | - Marina Rubio
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France
| | - Joan Montaner
- Department of Neurology, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - Julien Puyal
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,CURML, University Center of Legal Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - Denis Vivien
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France.,Department of Clinical Research, CHU Caen, Caen University Hospital, Caen, France
| | - Benoit D Roussel
- Physiopathology and Imaging of Neurological Disorders (PhIND), Institute Blood and Brain @Caen-Normandie (BB@C), GIP Cyceron, Normandy University, UNICAEN, INSERM, UMR-S U1237, Caen, France
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14
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De Risi M, Torromino G, Tufano M, Moriceau S, Pignataro A, Rivagorda M, Carrano N, Middei S, Settembre C, Ammassari‐Teule M, Gardoni F, Mele A, Oury F, De Leonibus E. Mechanisms by which autophagy regulates memory capacity in ageing. Aging Cell 2020; 19:e13189. [PMID: 32729663 PMCID: PMC7511873 DOI: 10.1111/acel.13189] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 06/08/2020] [Accepted: 06/13/2020] [Indexed: 12/25/2022] Open
Abstract
Autophagy agonists have been proposed to slow down neurodegeneration. Spermidine, a polyamine that acts as an autophagy agonist, is currently under clinical trial for the treatment of age‐related memory decline. How Spermidine and other autophagy agonists regulate memory and synaptic plasticity is under investigation. We set up a novel mouse model of mild cognitive impairment (MCI), in which middle‐aged (12‐month‐old) mice exhibit impaired memory capacity, lysosomes engulfed with amyloid fibrils (β‐amyloid and α‐synuclein) and impaired task‐induced GluA1 hippocampal post‐translation modifications. Subchronic treatment with Spermidine as well as the autophagy agonist TAT‐Beclin 1 rescued memory capacity and GluA1 post‐translational modifications by favouring the autophagy/lysosomal‐mediated degradation of amyloid fibrils. These findings provide new mechanistic evidence on the therapeutic relevance of autophagy enhancers which, by improving the degradation of misfolded proteins, slow down age‐related memory decline.
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Affiliation(s)
- Maria De Risi
- Telethon Institute of Genetics and Medicine Telethon Foundation Pozzuoli Italy
- Institute of Biochemistry and Cell Biology (IBBC) National Research Council Rome Italy
| | - Giulia Torromino
- Telethon Institute of Genetics and Medicine Telethon Foundation Pozzuoli Italy
- Institute of Biochemistry and Cell Biology (IBBC) National Research Council Rome Italy
| | - Michele Tufano
- Telethon Institute of Genetics and Medicine Telethon Foundation Pozzuoli Italy
| | - Stéphanie Moriceau
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1151 Institut Necker Enfants‐Malades (INEM) Université Paris Descartes‐Sorbonne–Paris Cité Paris France
| | - Annabella Pignataro
- Laboratory of Psychobiology Department of Experimental Neurology Santa Lucia Foundation Rome Italy
- Institute of Translational Pharmacology (IFT) National Research Council Rome Italy
| | - Manon Rivagorda
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1151 Institut Necker Enfants‐Malades (INEM) Université Paris Descartes‐Sorbonne–Paris Cité Paris France
| | - Nicolò Carrano
- Department of Pharmacological and Biomolecular Sciences University of Milan Milan Italy
| | - Silvia Middei
- Institute of Biochemistry and Cell Biology (IBBC) National Research Council Rome Italy
| | - Carmine Settembre
- Telethon Institute of Genetics and Medicine Telethon Foundation Pozzuoli Italy
| | - Martine Ammassari‐Teule
- Institute of Biochemistry and Cell Biology (IBBC) National Research Council Rome Italy
- Laboratory of Psychobiology Department of Experimental Neurology Santa Lucia Foundation Rome Italy
| | - Fabrizio Gardoni
- Department of Pharmacological and Biomolecular Sciences University of Milan Milan Italy
| | - Andrea Mele
- Department of Biology and Biotechnology "C. Darwin" Sapienza University of Rome Rome Italy
- Center for Research in Neurobiology "D. Bovet" Sapienza University of Rome Rome Italy
| | - Franck Oury
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1151 Institut Necker Enfants‐Malades (INEM) Université Paris Descartes‐Sorbonne–Paris Cité Paris France
| | - Elvira De Leonibus
- Telethon Institute of Genetics and Medicine Telethon Foundation Pozzuoli Italy
- Institute of Biochemistry and Cell Biology (IBBC) National Research Council Rome Italy
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15
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Joseph A, Moriceau S, Sica V, Anagnostopoulos G, Pol J, Martins I, Lafarge A, Maiuri MC, Leboyer M, Loftus J, Bellivier F, Belzeaux R, Berna F, Etain B, Capdevielle D, Courtet P, Dubertret C, Dubreucq J, Thierry DA, Fond G, Gard S, Llorca PM, Mallet J, Misdrahi D, Olié E, Passerieux C, Polosan M, Roux P, Samalin L, Schürhoff F, Schwan R, Magnan C, Oury F, Bravo-San Pedro JM, Kroemer G. Metabolic and psychiatric effects of acyl coenzyme A binding protein (ACBP)/diazepam binding inhibitor (DBI). Cell Death Dis 2020; 11:502. [PMID: 32632162 PMCID: PMC7338362 DOI: 10.1038/s41419-020-2716-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/23/2020] [Indexed: 12/14/2022]
Abstract
Acyl coenzyme A binding protein (ACBP), also known as diazepam binding inhibitor (DBI) is a multifunctional protein with an intracellular action (as ACBP), as well as with an extracellular role (as DBI). The plasma levels of soluble ACBP/DBI are elevated in human obesity and reduced in anorexia nervosa. Accumulating evidence indicates that genetic or antibody-mediated neutralization of ACBP/DBI has anorexigenic effects, thus inhibiting food intake and inducing lipo-catabolic reactions in mice. A number of anorexiants have been withdrawn from clinical development because of their side effects including an increase in depression and suicide. For this reason, we investigated the psychiatric impact of ACBP/DBI in mouse models and patient cohorts. Intravenously (i.v.) injected ACBP/DBI protein conserved its orexigenic function when the protein was mutated to abolish acyl coenzyme A binding, but lost its appetite-stimulatory effect in mice bearing a mutation in the γ2 subunit of the γ-aminobutyric acid (GABA) A receptor (GABAAR). ACBP/DBI neutralization by intraperitoneal (i.p.) injection of a specific mAb blunted excessive food intake in starved and leptin-deficient mice, but not in ghrelin-treated animals. Neither i.v. nor i.p. injected anti-ACBP/DBI antibody affected the behavior of mice in the dark–light box and open-field test. In contrast, ACBP/DBI increased immobility in the forced swim test, while anti-ACBP/DBI antibody counteracted this sign of depression. In patients diagnosed with therapy-resistant bipolar disorder or schizophrenia, ACBP/DBI similarly correlated with body mass index (BMI), not with the psychiatric diagnosis. Patients with high levels of ACBP/DBI were at risk of dyslipidemia and this effect was independent from BMI, as indicated by multivariate analysis. In summary, it appears that ACBP/DBI neutralization has no negative impact on mood and that human depression is not associated with alterations in ACBP/DBI concentrations.
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Affiliation(s)
- Adrien Joseph
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.,Faculté de Médecine, Université de Paris Saclay, Kremlin Bicetre, France
| | - Stéphanie Moriceau
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Université Paris Descartes-Sorbonne-Paris Cité, Paris, France
| | - Valentina Sica
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.,Cell Biology Group, Department of Experimental and Health Sciences, Pompeu Fabra University (UPF), Barcelona, Spain
| | - Gerasimos Anagnostopoulos
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.,Faculté de Médecine, Université de Paris Saclay, Kremlin Bicetre, France
| | - Jonathan Pol
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Isabelle Martins
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.,Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
| | - Antoine Lafarge
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.,Faculté de Médecine, Université de Paris Saclay, Kremlin Bicetre, France
| | - Maria Chiara Maiuri
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Marion Leboyer
- Fondation FondaMental, Créteil, France.,Université Paris Est Créteil, Inserm U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France.,AP-HP, HU Henri Mondor, Departement Medico-Universitaire de Psychiatrie et d'Addictologie (DMU ADAPT), Federation Hospitalo-Universitaire de Médecine de Precision (FHU IMPACT), F-94010, Créteil, France.,Fondation FondaMental Créteil, Créteil, France
| | - Josephine Loftus
- Fondation FondaMental, Créteil, France.,Pôle de Psychiatrie, Centre Hospitalier Princesse Grace, Monaco, France
| | - Frank Bellivier
- Fondation FondaMental, Créteil, France.,AP-HP, GH Saint-Louis-Lariboisière-Fernand Widal, Pôle Neurosciences Tête et Cou, INSERM UMRS 1144, University Paris Diderot, Paris, France
| | - Raoul Belzeaux
- Fondation FondaMental, Créteil, France.,Pôle de Psychiatrie, Assistance Publique Hôpitaux de Marseille, Marseille, France.,INT-UMR7289, CNRS Aix-Marseille Université, Marseille, France
| | - Fabrice Berna
- Fondation FondaMental, Créteil, France.,Hôpitaux Universitaires de Strasbourg, Université de Strasbourg, INSERM U1114, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Bruno Etain
- Fondation FondaMental, Créteil, France.,AP-HP, GH Saint-Louis-Lariboisière-Fernand Widal, Pôle Neurosciences Tête et Cou, INSERM UMRS 1144, University Paris Diderot, Paris, France
| | - Delphine Capdevielle
- Fondation FondaMental, Créteil, France.,Service Universitaire de Psychiatrie Adulte, Hôpital la Colombière, CHRU Montpellier, Université Montpellier 1, Inserm 1061, Montpellier, France
| | - Philippe Courtet
- Fondation FondaMental, Créteil, France.,Department of Emergency Psychiatry and Acute Care, Lapeyronie Hospital, CHU Montpellier, Montpellier, France.,PSNREC, Univ Montpellier, INSERM, CHU Montpellier, Montpellier, France
| | - Caroline Dubertret
- Fondation FondaMental, Créteil, France.,AP-HP, Groupe Hospitalo-Universitaire Nord, DMU ESPRIT, Service de Psychiatrie et Addictologie. Hopital Louis Mourier, Colombes, Inserm U1266, Faculté de Médecine, Université de Paris, Paris, France
| | - Julien Dubreucq
- Fondation FondaMental, Créteil, France.,Centre Référent de Réhabilitation Psychosociale et de Remédiation Cognitive (C3R), CH, Alpes Isère, France
| | - D' Amato Thierry
- Fondation FondaMental, Créteil, France.,INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences de Lyon, Université Claude Bernard Lyon 1, Equipe PSYR2, Centre Hospitalier Le Vinatier, Pole Est, 69678, Bron Cedex, France
| | - Guillaume Fond
- Fondation FondaMental, Créteil, France.,AP-HM, Aix-Marseille University, School of Medicine-La Timone Medical Campus, EA 3279, Marseille, France.,EReSS-Health Service Research and Quality of Life Center, 13005, Marseille, France
| | - Sebastien Gard
- Fondation FondaMental, Créteil, France.,Centre Expert Troubles Bipolaires, Service de Psychiatrie Adulte, Hôpital Charles-Perrens, Bordeaux, France
| | - Pierre-Michel Llorca
- Fondation FondaMental, Créteil, France.,CHU Clermont-Ferrand, Department of Psychiatry, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Jasmina Mallet
- Fondation FondaMental, Créteil, France.,AP-HP, Groupe Hospitalo-Universitaire Nord, DMU ESPRIT, Service de Psychiatrie et Addictologie. Hopital Louis Mourier, Colombes, Inserm U1266, Faculté de Médecine, Université de Paris, Paris, France
| | - David Misdrahi
- Fondation FondaMental, Créteil, France.,Centre Expert Troubles Bipolaires, Service de Psychiatrie Adulte, Hôpital Charles-Perrens, Bordeaux, France
| | - Emilie Olié
- Fondation FondaMental, Créteil, France.,Department of Emergency Psychiatry and Acute Care, Lapeyronie Hospital, CHU Montpellier, Montpellier, France
| | - Christine Passerieux
- Fondation FondaMental, Créteil, France.,Service Universitaire de Psychiatrie d'Adultes, Centre Hospitalier de Versailles, Le Chesnay, Université Paris-Saclay, UVSQ, Inserm, CESP, Team "DevPsy", 94807, Villejuif, France
| | - Mircea Polosan
- Fondation FondaMental, Créteil, France.,Université Grenoble Alpes, CHU de Grenoble et des Alpes, Grenoble Institut des Neurosciences (GIN) Inserm U 1216, Grenoble, France
| | - Paul Roux
- Fondation FondaMental, Créteil, France.,Service Universitaire de Psychiatrie d'Adultes, Centre Hospitalier de Versailles, Le Chesnay, Université Paris-Saclay, UVSQ, Inserm, CESP, Team "DevPsy", 94807, Villejuif, France
| | - Ludovic Samalin
- Fondation FondaMental, Créteil, France.,CHU Clermont-Ferrand, Department of Psychiatry, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Franck Schürhoff
- Fondation FondaMental, Créteil, France.,Université Paris Est Créteil, Inserm U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France.,AP-HP, HU Henri Mondor, Departement Medico-Universitaire de Psychiatrie et d'Addictologie (DMU ADAPT), Federation Hospitalo-Universitaire de Médecine de Precision (FHU IMPACT), F-94010, Créteil, France.,Fondation FondaMental Créteil, Créteil, France
| | - Raymond Schwan
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France.,Université de Lorraine, CHRU de Nancy et Pôle de Psychiatrie et Psychologie Clinique, Centre Psychothérapique de Nancy, Nancy, France
| | | | | | - Franck Oury
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Université Paris Descartes-Sorbonne-Paris Cité, Paris, France
| | - José M Bravo-San Pedro
- University Complutense of Madrid. Faculty of Medicine. Department of Physiology, Madrid, Spain.
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Paris, France. .,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France. .,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France. .,Suzhou Institute for Systems Medicine, Chinese Academy of Medical Sciences, Suzhou, China. .,Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden.
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16
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Fregeac J, Moriceau S, Poli A, Nguyen LS, Oury F, Colleaux L. Loss of the neurodevelopmental disease-associated gene miR-146a impairs neural progenitor differentiation and causes learning and memory deficits. Mol Autism 2020; 11:22. [PMID: 32228681 PMCID: PMC7106595 DOI: 10.1186/s13229-020-00328-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 03/12/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Formation and maintenance of appropriate neural networks require tight regulation of neural stem cell proliferation, differentiation, and neurogenesis. microRNAs (miRNAs) play an important role in brain development and plasticity, and dysregulated miRNA profiles have been linked to neurodevelopmental disorders including autism, schizophrenia, or intellectual disability. Yet, the functional role of miRNAs in neural development and postnatal brain functions remains unclear. METHODS Using a combination of cell biology techniques as well as behavioral studies and brain imaging, we characterize mouse models with either constitutive inactivation or selectively hippocampal knockdown of the neurodevelopmental disease-associated gene Mir146a, the most commonly deregulated miRNA in developmental brain disorders (DBD). RESULTS We first show that during development, loss of miR-146a impairs the differentiation of radial glial cells, neurogenesis process, and neurite extension. In the mouse adult brain, loss of miR-146a correlates with an increased hippocampal asymmetry coupled with defects in spatial learning and memory performances. Moreover, selective hippocampal downregulation of miR-146a in adult mice causes severe hippocampal-dependent memory impairments indicating for the first time a role for this miRNA in postnatal brain functions. CONCLUSION Our results show that miR-146a expression is critical for correct differentiation of neural stem cell during brain development and provide for the first time a strong argument for a postnatal role of miR-146a in regulating hippocampal-dependent memory. Furthermore, the demonstration that the Mir146a-/- mouse recapitulates several aspects reported in DBD patients, including impaired neurogenesis, abnormal brain anatomy, and working and spatial memories deficits, provides convincing evidence that the dysregulation of miR146a contributes to the pathogenesis of DBDs.
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Affiliation(s)
- Julien Fregeac
- Developmental Brain Disorder Laboratory, INSERM UMR 1163, Imagine Institute, Paris, France
- Paris Descartes–Sorbonne Paris Cité University, Paris, France
| | - Stéphanie Moriceau
- Paris Descartes–Sorbonne Paris Cité University, Paris, France
- Institut Necker Enfants Malades (INEM), Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, 75015 Paris, France
| | - Antoine Poli
- Developmental Brain Disorder Laboratory, INSERM UMR 1163, Imagine Institute, Paris, France
- Paris Descartes–Sorbonne Paris Cité University, Paris, France
| | - Lam Son Nguyen
- Developmental Brain Disorder Laboratory, INSERM UMR 1163, Imagine Institute, Paris, France
- Paris Descartes–Sorbonne Paris Cité University, Paris, France
| | - Franck Oury
- Paris Descartes–Sorbonne Paris Cité University, Paris, France
- Institut Necker Enfants Malades (INEM), Institut National de la Santé et de la Recherche Médicale (INSERM) U1151, 75015 Paris, France
| | - Laurence Colleaux
- Developmental Brain Disorder Laboratory, INSERM UMR 1163, Imagine Institute, Paris, France
- Paris Descartes–Sorbonne Paris Cité University, Paris, France
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17
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Schreiweis C, Irinopoulou T, Vieth B, Laddada L, Oury F, Burguière E, Enard W, Groszer M. Mice carrying a humanized Foxp2 knock-in allele show region-specific shifts of striatal Foxp2 expression levels. Cortex 2019; 118:212-222. [DOI: 10.1016/j.cortex.2019.01.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 11/07/2018] [Accepted: 01/08/2019] [Indexed: 12/31/2022]
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18
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19
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Glatigny M, Moriceau S, Rivagorda M, Ramos-Brossier M, Nascimbeni AC, Lante F, Shanley MR, Boudarene N, Rousseaud A, Friedman AK, Settembre C, Kuperwasser N, Friedlander G, Buisson A, Morel E, Codogno P, Oury F. Autophagy Is Required for Memory Formation and Reverses Age-Related Memory Decline. Curr Biol 2019; 29:435-448.e8. [PMID: 30661803 DOI: 10.1016/j.cub.2018.12.021] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 09/25/2018] [Accepted: 12/13/2018] [Indexed: 12/20/2022]
Abstract
Age-related declines in cognitive fitness are associated with a reduction in autophagy, an intracellular lysosomal catabolic process that regulates protein homeostasis and organelle turnover. However, the functional significance of autophagy in regulating cognitive function and its decline during aging remains largely elusive. Here, we show that stimulating memory upregulates autophagy in the hippocampus. Using hippocampal injections of genetic and pharmacological modulators of autophagy, we find that inducing autophagy in hippocampal neurons is required to form novel memory by promoting activity-dependent structural and functional synaptic plasticity, including dendritic spine formation, neuronal facilitation, and long-term potentiation. We show that hippocampal autophagy activity is reduced during aging and that restoring its levels is sufficient to reverse age-related memory deficits. Moreover, we demonstrate that systemic administration of young plasma into aged mice rejuvenates memory in an autophagy-dependent manner, suggesting a prominent role for autophagy to favor the communication between systemic factors and neurons in fostering cognition. Among these youthful factors, we identify osteocalcin, a bone-derived molecule, as a direct hormonal inducer of hippocampal autophagy. Our results reveal that inducing autophagy in hippocampal neurons is a necessary mechanism to enhance the integration of novel stimulations of memory and to promote the influence of systemic factors on cognitive fitness. We also demonstrate the potential therapeutic benefits of modulating autophagy in the aged brain to counteract age-related cognitive impairments.
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Affiliation(s)
- Mélissa Glatigny
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 14, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Stéphanie Moriceau
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 14, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Manon Rivagorda
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 14, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Mariana Ramos-Brossier
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 14, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Anna C Nascimbeni
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 1, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Fabien Lante
- Grenoble Institut des Neurosciences, INSERM U1216, Equipe Neuropathologies et Dysfonctions Synaptiques, Université Grenoble Alpes, Grenoble, France
| | - Mary R Shanley
- Department of Biological Sciences, City University of New York-Hunter College, 695 Park Avenue, New York, NY 10065, USA
| | - Nadir Boudarene
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 14, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Audrey Rousseaud
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 14, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Allyson K Friedman
- Department of Biological Sciences, City University of New York-Hunter College, 695 Park Avenue, New York, NY 10065, USA
| | - Carmine Settembre
- Department of Cell Biology and Disease Mechanisms, Telethon Institute of Genetics and Medicine, Naples, Italy
| | - Nicolas Kuperwasser
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 5, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Gérard Friedlander
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 1, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Alain Buisson
- Grenoble Institut des Neurosciences, INSERM U1216, Equipe Neuropathologies et Dysfonctions Synaptiques, Université Grenoble Alpes, Grenoble, France
| | - Etienne Morel
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 1, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France
| | - Patrice Codogno
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 1, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France.
| | - Franck Oury
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Team 14, Université Paris Descartes-Sorbonne-Paris Cité, 75014 Paris, France.
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20
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Ureña-Torres PA, Vervloet M, Mazzaferro S, Oury F, Brandenburg V, Bover J, Cavalier E, Cohen-Solal M, Covic A, Drüeke TB, Hindié E, Evenepoel P, Frazão J, Goldsmith D, Kazama JJ, Cozzolino M, Massy ZA. Novel insights into parathyroid hormone: report of The Parathyroid Day in Chronic Kidney Disease. Clin Kidney J 2018; 12:269-280. [PMID: 30976408 PMCID: PMC6452197 DOI: 10.1093/ckj/sfy061] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Indexed: 12/14/2022] Open
Abstract
Chronic kidney disease (CKD) is often associated with a mineral and bone disorder globally described as CKD-Mineral and Bone Disease (MBD), including renal osteodystrophy, the latter ranging from high bone turnover, as in case of secondary hyperparathyroidism (SHPT), to low bone turnover. The present article summarizes the important subjects that were covered during ‘The Parathyroid Day in Chronic Kidney Disease’ CME course organized in Paris in September 2017. It includes the latest insights on parathyroid gland growth, parathyroid hormone (PTH) synthesis, secretion and regulation by the calcium-sensing receptor, vitamin D receptor and fibroblast growth factor 23 (FGF23)–Klotho axis, as well as on parathyroid glands imaging. The skeletal action of PTH in early CKD stages to the steadily increasing activation of the often downregulated PTH receptor type 1 has been critically reviewed, emphasizing that therapeutic strategies to decrease PTH levels at these stages might not be recommended. The effects of PTH on the central nervous system, in particular cognitive functions, and on the cardiovascular system are revised, and the reliability and exchangeability of second- and third-generation PTH immunoassays discussed. The article also reviews the different circulating biomarkers used for the diagnosis and monitoring of CKD-MBD, including PTH and alkaline phosphatases isoforms. Moreover, it presents an update on the control of SHPT by vitamin D compounds, old and new calcimimetics, and parathyroidectomy. Finally, it covers the latest insights on the persistence and de novo occurrence of SHPT in renal transplant recipients.
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Affiliation(s)
- Pablo A Ureña-Torres
- Ramsay-Générale de Santé, Clinique du Landy, Department of Nephrology and Dialysis and Department of Renal Physiology, Necker Hospital, University of Paris Descartes, Paris, France
| | - Marc Vervloet
- Department of Nephrology and Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center, Amsterdam, The Netherlands
| | - Sandro Mazzaferro
- Department of Cardiovascular Respiratory Nephrologic Anaesthetic and Geriatric Sciences, Sapienza University of Rome, Rome, Italy
| | - Franck Oury
- INEM, Centre de Mdecine Moléculaire Faculté de Médecine Paris Descartes, Sorbonne, Paris Cité Bâtiment Leriche, France
| | - Vincent Brandenburg
- Department of Cardiology, University Hospital RWTH Aachen, Pauwelsstraße, Aachen, Germany
| | - Jordi Bover
- Department of Nephrology, Fundació Puigvert, IIB Sant Pau, RedinRen, C. Cartagena, Catalonia, 340-350 Barcelona, Spain
| | - Etienne Cavalier
- Department of Clinical Chemistry, University of Liège, CHU Sart-Tilman, Liège, Belgium
| | - Martine Cohen-Solal
- INSERM U1132 & USPC Paris-Diderot, Department of Rheumatology, Hôpital Lariboisière, Paris, France
| | - Adrian Covic
- Department of Nephrology, University of Medicine and Pharmacy "Gr. T. Popa", Iasi, Romania
| | - Tilman B Drüeke
- Inserm Unit 1018, CESP, Team 5, Paul Brousse Hospital, Villejuif/Paris, France
| | - Elif Hindié
- Nuclear Medicine, University of Bordeaux, Haut-Lévêque Hospital, Pessac, France
| | - Pieter Evenepoel
- Department of Medicine, Division of Nephrology, University Hospital Leuven, Leuven, Belgium.,Dienst nefrologie, Universitair Ziekenhuis Gasthuisberg, Herestraat, Leuven, Belgium
| | - João Frazão
- Institute of Investigation and Innovation in Health, University of Porto, Porto, Portugal.,INEB-National Institute of Biomedical Engineer, University of Porto, Porto, Portugal.,Department of Nephrology, São João Hospital Center, Porto, Portugal.,School of Medicine of University of Porto, Porto, Portugal
| | | | - Junichiro James Kazama
- Department of Nephrology and Hypertension, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1247, Japan
| | - Mario Cozzolino
- Renal Division, San Paolo Hospital, Department of Health Sciences, University of Milan, Milan, Italy
| | - Ziad A Massy
- Division of Nephrology, Ambroise Paré University Medical Center, APHP, University of Paris Ouest (UVSQ), Boulogne Billancourt/Paris, France
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21
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Abstract
A remarkable, unexpected aspect of the bone-derived hormone osteocalcin is that it is necessary for both brain development and brain function in the mouse, as its absence results in a profound deficit in spatial learning and memory and an exacerbation of anxiety-like behaviour. The regulation of cognitive function by osteocalcin, together with the fact that its circulating levels decrease in midlife compared with adolescence in all species tested, raised the prospect that osteocalcin might be an anti-geronic hormone that could prevent age-related cognitive decline. As presented in this Review, recent data indicate that this is indeed the case and that osteocalcin is necessary for the anti-geronic activity recently ascribed to the plasma of young wild-type mice. The diversity and amplitude of the functions of osteocalcin in the brain, during development and postnatally, had long called for the identification of its receptor in the brain, which was also recently achieved. This Review presents our current understanding of the biology of osteocalcin in the brain, highlighting the bony vertebrate specificity of the regulation of cognitive function and pointing toward where therapeutic opportunities might exist.
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Affiliation(s)
- Arnaud Obri
- Department of Genetics and Development, Columbia University Medical Center, 701 W 168th St. Rm 1602, New York City, New York 10032, USA
| | - Lori Khrimian
- Department of Genetics and Development, Columbia University Medical Center, 701 W 168th St. Rm 1602, New York City, New York 10032, USA
| | - Gerard Karsenty
- Department of Genetics and Development, Columbia University Medical Center, 701 W 168th St. Rm 1602, New York City, New York 10032, USA
| | - Franck Oury
- Institut Necker-Enfants Malades, CS 61431, Paris, France Institut National de la Santé et de la Recherche Médicale, U1151, F-75014 Paris, France Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
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22
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Abstract
The maintenance of our physiological functions and their adaptive response to environmental changes depend on precise crosstalk between organs. Recent advances in mouse genetics have helped demonstrate that this holistic view of physiology extends to the skeletal system, where many unexpected signaling axes are found to play essential roles affecting numerous organs. After being long regarded as a static tissue, functioning merely as a structural support system, the skeleton has seen its image evolve into a much more complex picture. The skeleton reveals itself as a key endocrine organ for the homeostasis of our body, both by its central position in our body, but also by the large number of physiological functions it influences. In this review, we discuss the multiple endocrine roles of osteocalcin, an osteoclast-derived molecule (Ocn), where its functional importance has steadily increased over the last 15 years.
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Affiliation(s)
- Julien Oury
- Center for biology and medicine, Skirball institute of biomolecular medicine, New York university medical school, New York, 10016, États-Unis
| | - Franck Oury
- Inserm U1151, Institut Necker-Enfants Malades (INEM), Département Croissance et signalisation, équipe 14, université Paris Descartes Sorbone-Paris Cité, 14, rue Maria Helena Vieira Da Silva, 75014 Paris, France
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23
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Khrimian L, Obri A, Ramos-Brossier M, Rousseaud A, Moriceau S, Nicot AS, Mera P, Kosmidis S, Karnavas T, Saudou F, Gao XB, Oury F, Kandel E, Karsenty G. Gpr158 mediates osteocalcin's regulation of cognition. J Exp Med 2017; 214:2859-2873. [PMID: 28851741 PMCID: PMC5626410 DOI: 10.1084/jem.20171320] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/01/2017] [Accepted: 08/03/2017] [Indexed: 02/01/2023] Open
Abstract
This study by Khrimian et al. demonstrates that the bone-derived hormone osteocalcin is necessary and sufficient to correct age-related cognitive decline in the mouse. It also provides genetic, molecular, and neurophysiological evidence that Gpr158 is the receptor mediating osteocalcin’s regulation of cognition. That osteocalcin (OCN) is necessary for hippocampal-dependent memory and to prevent anxiety-like behaviors raises novel questions. One question is to determine whether OCN is also sufficient to improve these behaviors in wild-type mice, when circulating levels of OCN decline as they do with age. Here we show that the presence of OCN is necessary for the beneficial influence of plasma from young mice when injected into older mice on memory and that peripheral delivery of OCN is sufficient to improve memory and decrease anxiety-like behaviors in 16-mo-old mice. A second question is to identify a receptor transducing OCN signal in neurons. Genetic, electrophysiological, molecular, and behavioral assays identify Gpr158, an orphan G protein–coupled receptor expressed in neurons of the CA3 region of the hippocampus, as transducing OCN’s regulation of hippocampal-dependent memory in part through inositol 1,4,5-trisphosphate and brain-derived neurotrophic factor. These results indicate that exogenous OCN can improve hippocampal-dependent memory in mice and identify molecular tools to harness this pathway for therapeutic purposes.
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Affiliation(s)
- Lori Khrimian
- Department of Genetics and Development, Columbia University Medical Center, New York, NY
| | - Arnaud Obri
- Department of Genetics and Development, Columbia University Medical Center, New York, NY
| | - Mariana Ramos-Brossier
- Institut Necker-Enfants Malades, CS 61431, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1151, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Audrey Rousseaud
- Institut Necker-Enfants Malades, CS 61431, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1151, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Stéphanie Moriceau
- Institut Necker-Enfants Malades, CS 61431, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1151, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Anne-Sophie Nicot
- Grenoble Institute des Neurosciences, Université Grenoble Alpes, Grenoble, France.,INSERM, U1216, Grenoble, France
| | - Paula Mera
- Department of Genetics and Development, Columbia University Medical Center, New York, NY
| | - Stylianos Kosmidis
- Department of Neuroscience, Columbia University Medical Center, New York, NY.,Howard Hughes Medical Institute, Columbia University, New York, NY.,New York State Psychiatric Institute, New York, NY
| | - Theodoros Karnavas
- Department of Genetics and Development, Columbia University Medical Center, New York, NY
| | - Frederic Saudou
- Grenoble Institute des Neurosciences, Université Grenoble Alpes, Grenoble, France.,INSERM, U1216, Grenoble, France.,CHU Grenoble Alpes, Grenoble, France
| | - Xiao-Bing Gao
- Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, CT
| | - Franck Oury
- Institut Necker-Enfants Malades, CS 61431, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1151, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Eric Kandel
- Department of Neuroscience, Columbia University Medical Center, New York, NY.,Kavli Institute for Brain Science, Columbia University Medical Center, New York, NY.,Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY.,New York State Psychiatric Institute, New York, NY
| | - Gerard Karsenty
- Department of Genetics and Development, Columbia University Medical Center, New York, NY
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24
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Rousseaud A, Moriceau S, Ramos-Brossier M, Oury F. Bone-brain crosstalk and potential associated diseases. Horm Mol Biol Clin Investig 2017; 28:69-83. [PMID: 27626767 DOI: 10.1515/hmbci-2016-0030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 07/11/2016] [Indexed: 12/24/2022]
Abstract
Reciprocal relationships between organs are essential to maintain whole body homeostasis. An exciting interplay between two apparently unrelated organs, the bone and the brain, has emerged recently. Indeed, it is now well established that the brain is a powerful regulator of skeletal homeostasis via a complex network of numerous players and pathways. In turn, bone via a bone-derived molecule, osteocalcin, appears as an important factor influencing the central nervous system by regulating brain development and several cognitive functions. In this paper we will discuss this complex and intimate relationship, as well as several pathologic conditions that may reinforce their potential interdependence.
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25
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Abstract
In the past 15 years, the field of physiology has been radically challenged by landmark studies using novel tools of genetic engineering. Particular to our interest, the reciprocal interactions between the skeleton and the nervous system were shown to be major ones. The demonstration that brain, via multiple pathways, is a powerful regulator of bone growth, has shed light on an important central regulation of skeletal homeostasis. More recently, it was shown that bone might return the favor to the brain through the secretion of a bone-derived hormone, osteocalcin. The skeleton influences development and cognitive functions of the central nervous system at different stages throughout life suggesting an intimate dialogue between bone and brain.
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Affiliation(s)
- Alexandre Chamouni
- Centre de Médecine Moléculaire, Institut Necker-Enfants Malades (INEM), 75014, Paris, France
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26
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Oury F, Ferron M, Huizhen W, Confavreux C, Xu L, Lacombe J, Srinivas P, Chamouni A, Lugani F, Lejeune H, Kumar TR, Plotton I, Karsenty G. Osteocalcin regulates murine and human fertility through a pancreas-bone-testis axis. J Clin Invest 2015; 125:2180. [PMID: 25932680 DOI: 10.1172/jci81812] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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27
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Abstract
Cell-specific gene inactivation experiments delineate the functions of the enzymes required for osteocalcin modification and demonstrate that it is its uncarboxylated form that acts as a hormone. Osteocalcin (OCN) is an osteoblast-derived hormone favoring glucose homeostasis, energy expenditure, male fertility, brain development, and cognition. Before being secreted by osteoblasts in the bone extracellular matrix, OCN is γ-carboxylated by the γ-carboxylase (GGCX) on three glutamic acid residues, a cellular process requiring reduction of vitamin K (VK) by a second enzyme, a reductase called VKORC1. Although circumstantial evidence suggests that γ-carboxylation may inhibit OCN endocrine functions, genetic evidence that it is the case is still lacking. Here we show using cell-specific gene inactivation models that γ-carboxylation of OCN by GGCX inhibits its endocrine function. We further show that VKORC1 is required for OCN γ-carboxylation in osteoblasts, whereas its paralogue, VKORC1L1, is dispensable for this function and cannot compensate for the absence of VKORC1 in osteoblasts. This study genetically and biochemically delineates the functions of the enzymes required for OCN modification and demonstrates that it is the uncarboxylated form of OCN that acts as a hormone.
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Affiliation(s)
- Mathieu Ferron
- Unité de recherche en physiologie intégrative et moléculaire, Institut de Recherches Cliniques de Montréal, Montréal, Québec H2W 1R7, Canada Département de médecine, Département de biochimie et médecine moléculaire, and Programmes de biologie moléculaire, Université de Montréal, Montréal, Québec H3C 3J7, Canada Département de médecine, Département de biochimie et médecine moléculaire, and Programmes de biologie moléculaire, Université de Montréal, Montréal, Québec H3C 3J7, Canada Département de médecine, Département de biochimie et médecine moléculaire, and Programmes de biologie moléculaire, Université de Montréal, Montréal, Québec H3C 3J7, Canada Department of Medicine, Division of Experimental Medicine, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Julie Lacombe
- Unité de recherche en physiologie intégrative et moléculaire, Institut de Recherches Cliniques de Montréal, Montréal, Québec H2W 1R7, Canada
| | - Amélie Germain
- Unité de recherche en physiologie intégrative et moléculaire, Institut de Recherches Cliniques de Montréal, Montréal, Québec H2W 1R7, Canada Département de médecine, Département de biochimie et médecine moléculaire, and Programmes de biologie moléculaire, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Franck Oury
- Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, NY 10032
| | - Gérard Karsenty
- Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, NY 10032
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28
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Oury F, Ferron M, Huizhen W, Confavreux C, Xu L, Lacombe J, Srinivas P, Chamouni A, Lugani F, Lejeune H, Kumar TR, Plotton I, Karsenty G. Osteocalcin regulates murine and human fertility through a pancreas-bone-testis axis. J Clin Invest 2014. [DOI: 10.1172/jci79293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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29
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Chamouni A, Oury F. Reciprocal interaction between bone and gonads. Arch Biochem Biophys 2014; 561:147-53. [DOI: 10.1016/j.abb.2014.06.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 06/14/2014] [Accepted: 06/17/2014] [Indexed: 11/30/2022]
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30
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Abstract
Traditionally, bone has been viewed as a relatively static tissue only fulfilling mechanical and scaffolding function. In the past decade however, this classical view of the bone has considerably evolved towards a more complex picture. It is now clear that the skeleton is not only a recipient for hormonal input but it is also an endocrine organ itself. Through the secretion of an osteoblast-derived molecule, osteocalcin, the skeleton regulates glucose homeostasis and male reproductive functions. When undercarboxylated, osteocalcin acts following its binding to a G-coupled receptor, Gprc6a, on pancreatic β cells to increase insulin secretion, on muscle and white adipose tissue to promote glucose homeostasis and on Leydig cells of the testis to favor testosterone biosynthesis. More recently, it was also shown that osteocalcin acts via a pancreas-bone-testis axis that regulates, independently of and in parallel to the hypothalamus-pituitary-testis axis, male reproductive functions by promoting testosterone biosynthesis. Lastly, in trying to expand the biological relevance of osteocalcin from mouse to human, it was shown that Gprc6a is a potential new susceptibility locus for primary testicular failure in humans. Altogether, these results shed new light on the importance of the endocrine role of the skeleton and also provide credence to the search for additional endocrine functions of this organ.
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Affiliation(s)
- Gerard Karsenty
- Columbia University, Department of Genetics and Development, HHSC 1602, 701 West 168th Street, New York, NY 10032, USA.
| | - Franck Oury
- Columbia University, Department of Genetics and Development, HHSC 1602, 701 West 168th Street, New York, NY 10032, USA
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31
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Oury F, Khrimian L, Denny CA, Gardin A, Chamouni A, Goeden N, Huang YY, Lee H, Srinivas P, Gao XB, Suyama S, Langer T, Mann JJ, Horvath TL, Bonnin A, Karsenty G. Maternal and offspring pools of osteocalcin influence brain development and functions. Cell 2013; 155:228-41. [PMID: 24074871 DOI: 10.1016/j.cell.2013.08.042] [Citation(s) in RCA: 257] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 07/05/2013] [Accepted: 08/22/2013] [Indexed: 10/26/2022]
Abstract
The powerful regulation of bone mass exerted by the brain suggests the existence of bone-derived signals modulating this regulation or other functions of the brain. We show here that the osteoblast-derived hormone osteocalcin crosses the blood-brain barrier, binds to neurons of the brainstem, midbrain, and hippocampus, enhances the synthesis of monoamine neurotransmitters, inhibits GABA synthesis, prevents anxiety and depression, and favors learning and memory independently of its metabolic functions. In addition to these postnatal functions, maternal osteocalcin crosses the placenta during pregnancy and prevents neuronal apoptosis before embryos synthesize this hormone. As a result, the severity of the neuroanatomical defects and learning and memory deficits of Osteocalcin(-/-) mice is determined by the maternal genotype, and delivering osteocalcin to pregnant Osteocalcin(-/-) mothers rescues these abnormalities in their Osteocalcin(-/-) progeny. This study reveals that the skeleton via osteocalcin influences cognition and contributes to the maternal influence on fetal brain development.
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Affiliation(s)
- Franck Oury
- Department of Genetics and Development, Columbia University, New York, NY 10032, USA
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32
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Oury F, Ferron M, Huizhen W, Confavreux C, Xu L, Lacombe J, Srinivas P, Chamouni A, Lugani F, Lejeune H, Kumar TR, Plotton I, Karsenty G. Osteocalcin regulates murine and human fertility through a pancreas-bone-testis axis. J Clin Invest 2013; 123:2421-33. [PMID: 23728177 DOI: 10.1172/jci65952] [Citation(s) in RCA: 185] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Accepted: 03/15/2013] [Indexed: 11/17/2022] Open
Abstract
The osteoblast-derived hormone osteocalcin promotes testosterone biosynthesis in the mouse testis by binding to GPRC6A in Leydig cells. Interestingly, Osteocalcin-deficient mice exhibit increased levels of luteinizing hormone (LH), a pituitary hormone that regulates sex steroid synthesis in the testes. These observations raise the question of whether LH regulates osteocalcin's reproductive effects. Additionally, there is growing evidence that osteocalcin levels are a reliable marker of insulin secretion and sensitivity and circulating levels of testosterone in humans, but the endocrine function of osteocalcin is unclear. Using mouse models, we found that osteocalcin and LH act in 2 parallel pathways and that osteocalcin-stimulated testosterone synthesis is positively regulated by bone resorption and insulin signaling in osteoblasts. To determine the importance of osteocalcin in humans, we analyzed a cohort of patients with primary testicular failure and identified 2 individuals harboring the same heterozygous missense variant in one of the transmembrane domains of GPRC6A, which prevented the receptor from localizing to the cell membrane. This study uncovers the existence of a second endocrine axis that is necessary for optimal male fertility in the mouse and suggests that osteocalcin modulates reproductive function in humans.
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Affiliation(s)
- Franck Oury
- Department of Genetics and Development, Columbia University, New York, New York, USA
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33
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34
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Abstract
Classical studies of vertebrate physiology have usually been confined to a given organ or cell type. The use of mouse genetics has changed this approach and has rejuvenated the concept of a whole-body study of physiology. One physiological system that has been profoundly influenced by mouse genetics is skeletal physiology. Indeed, genetic approaches have identified several unexpected organs that affect bone physiology. These new links have begun to provide a plausible explanation for the evolutionary involvement of hormones such as leptin with bone physiology. These genetic approaches have also revealed bone as a true endocrine organ capable of regulating energy metabolism and reproduction. Collectively, the body of work discussed below illustrates a new and unconventional role for bone in mammalian physiology.
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Affiliation(s)
- Gerard Karsenty
- Department of Genetics and Development, Columbia University, New York, NY 10032, USA.
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35
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Abstract
Leptin exerts control over energy metabolism, reproduction and bone mass accrual, raising the question does leptin act through a common neuronal circuit to mediate these effects? Historically, the hypothalamus has been viewed as the site for leptin signaling in the brain. Recent genetic studies, however, indicate that these physiological functions, notably the regulation of appetite and bone mass accrual by leptin, take place for the most part through inhibition of serotonin (5-hydroxytryptamine) synthesis and release by brainstem neurons. Here, we review how these findings have redefined the roadmap of leptin signaling in the brain. This has led to proof-of-principle studies showing that selective inhibition of the leptin-serotonin axis is a viable therapeutic approach to treat appetite disorders.
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Affiliation(s)
- Franck Oury
- Columbia University, Department of Genetics and Development, Hammer Health Science Center, 701 West 168th Street, New York, NY 10032, USA
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36
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Oury F, Sumara G, Sumara O, Ferron M, Chang H, Smith CE, Hermo L, Suarez S, Roth BL, Ducy P, Karsenty G. Endocrine regulation of male fertility by the skeleton. Cell 2011; 144:796-809. [PMID: 21333348 DOI: 10.1016/j.cell.2011.02.004] [Citation(s) in RCA: 418] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Revised: 01/12/2011] [Accepted: 01/31/2011] [Indexed: 01/19/2023]
Abstract
Interactions between bone and the reproductive system have until now been thought to be limited to the regulation of bone remodeling by the gonads. We now show that, in males, bone acts as a regulator of fertility. Using coculture assays, we demonstrate that osteoblasts are able to induce testosterone production by the testes, though they fail to influence estrogen production by the ovaries. Analyses of cell-specific loss- and gain-of-function models reveal that the osteoblast-derived hormone osteocalcin performs this endocrine function. By binding to a G protein-coupled receptor expressed in the Leydig cells of the testes, osteocalcin regulates in a CREB-dependent manner the expression of enzymes that is required for testosterone synthesis, promoting germ cell survival. This study expands the physiological repertoire of osteocalcin and provides the first evidence that the skeleton is an endocrine regulator of reproduction.
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Affiliation(s)
- Franck Oury
- Department of Genetics and Development, Columbia University, New York, NY 10032, USA
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37
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Yadav VK, Oury F, Tanaka KF, Tanaka K, Thomas T, Wang Y, Cremers S, Hen R, Krust A, Chambon P, Karsenty G. Leptin-dependent serotonin control of appetite: temporal specificity, transcriptional regulation, and therapeutic implications. ACTA ACUST UNITED AC 2010; 208:41-52. [PMID: 21187319 PMCID: PMC3023132 DOI: 10.1084/jem.20101940] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Recent evidence indicates that leptin regulates appetite and energy expenditure, at least in part by inhibiting serotonin synthesis and release from brainstem neurons. To demonstrate that this pathway works postnatally, we used a conditional, brainstem-specific mouse CreER(T2) driver to show that leptin signals in brainstem neurons after birth to decrease appetite by inhibiting serotonin synthesis. Cell-specific gene deletion experiments and intracerebroventricular leptin infusions reveal that serotonin signals in arcuate nuclei of the hypothalamus through the Htr1a receptor to favor food intake and that this serotonin function requires the expression of Creb, which regulates the expression of several genes affecting appetite. Accordingly, a specific antagonist of the Htr1a receptor decreases food intake in leptin-deficient but not in Htr1a(-/-) mice. Collectively, these results establish that leptin inhibition of serotonin is necessary to inhibit appetite postnatally and provide a proof of principle that selective inhibition of this pathway may be a viable option to treat appetite disorders.
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Affiliation(s)
- Vijay K Yadav
- Department of Genetics and Development, Columbia University, New York, NY 10027, USA
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38
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Oury F, Yadav VK, Wang Y, Zhou B, Liu XS, Guo XE, Tecott LH, Schutz G, Means AR, Karsenty G. CREB mediates brain serotonin regulation of bone mass through its expression in ventromedial hypothalamic neurons. Genes Dev 2010; 24:2330-42. [PMID: 20952540 DOI: 10.1101/gad.1977210] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Serotonin is a bioamine regulating bone mass accrual differently depending on its site of synthesis. It decreases accrual when synthesized in the gut, and increases it when synthesized in the brain. The signal transduction events elicited by gut-derived serotonin once it binds to the Htr1b receptor present on osteoblasts have been identified and culminate in cAMP response element-binding protein (CREB) regulation of osteoblast proliferation. In contrast, we do not know how brain-derived serotonin favors bone mass accrual following its binding to the Htr2c receptor on neurons of the hypothalamic ventromedial nucleus (VMH). We show here--through gene expression analysis, serotonin treatment of wild-type and Htr2c(-/-) hypothalamic explants, and cell-specific gene deletion in the mouse--that, following its binding to the Htr2c receptor on VMH neurons, serotonin uses a calmodulin kinase (CaMK)-dependent signaling cascade involving CaMKKβ and CaMKIV to decrease the sympathetic tone and increase bone mass accrual. We further show that the transcriptional mediator of these events is CREB, whose phosphorylation on Ser 133 is increased by CaMKIV following serotonin treatment of hypothalamic explants. A microarray experiment identified two genes necessary for optimum sympathetic activity whose expression is regulated by CREB. These results provide a molecular understanding of how serotonin signals in hypothalamic neurons to regulate bone mass accrual and identify CREB as a critical determinant of this function, although through different mechanisms depending on the cell type, neuron, or osteoblast in which it is expressed.
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Affiliation(s)
- Franck Oury
- Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, New York 10032, USA
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39
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Abstract
Evolutionary consideration and clinical observations led us to hypothesize 10 yr ago that there may be a coordinated regulation, endocrine in nature, of bone remodeling and energy metabolism. The existence of this coordinated regulation is motivated by the energetic needs of the skeleton; therefore, this regulation relies on hormones that appear during evolution with the skeleton, not with energy metabolism. Leptin is such a hormone, and it is a critical regulator of bone mass as well as of appetite and energy expenditure. This review goes over the anatomical route and molecular pathways used by leptin to inhibit both bone mass accrual and appetite through its signaling in the brain.
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Affiliation(s)
- Gerard Karsenty
- Department of Genetics and Development, Columbia University, New York, New York 10032, USA.
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40
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Abstract
During the last 20 years, the emergence of sophisticated genetic tools has extraordinarily improved our understanding of a large number of physiological functions, among which the physiology of the skeleton. Bone, recently described as an endocrine organ, has the ability to constantly renew itself through bone remodeling, which requires a constant supply of energy. Hence, we hypothesized that there must be a coregulation of bone mass and energy metabolism, and focused on leptin, an adipocyte-derived hormone, which regulates both energy metabolism and bone remodeling through a central relay. Through a careful analysis of leptin neuronal targets, we unraveled that leptin regulation of bone mass occurs indirectly by inhibiting serotonin release and synthesis in neurons of the brainstem. Surprisingly, we observed that the other pool of serotonin, produced in enterochromaffin cells of the duodenum, negatively regulates bone mass accrual. Thus, serotonin is a molecule with two distinct functional identities depending on its site of synthesis. Finally, a recent study provides a proof of principle that inhibiting gut-derived serotonin (GDS) biosynthesis could become a new anabolic treatment for osteoporosis. double dagger.
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Affiliation(s)
- Franck Oury
- Columbia University, Department of Genetics and Development, New York, NY 10032, USA
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41
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Shi Y, Oury F, Yadav VK, Wess J, Liu XS, Guo XE, Murshed M, Karsenty G. Signaling through the M(3) muscarinic receptor favors bone mass accrual by decreasing sympathetic activity. Cell Metab 2010; 11:231-8. [PMID: 20197056 PMCID: PMC2832931 DOI: 10.1016/j.cmet.2010.01.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 11/16/2009] [Accepted: 01/12/2010] [Indexed: 01/09/2023]
Abstract
Bone remodeling is regulated by various neuronal inputs, including sympathetic tone, which is known to inhibit bone mass accrual. This aspect of sympathetic nervous system function raises the prospect that the other arm of the autonomic nervous system, the parasympathetic nervous system, may also affect bone remodeling. Here, we use various mutant mouse strains, each lacking one of the muscarinic receptors that mediate parasympathetic activity, to show that the parasympathetic nervous system acting through the M(3) muscarinic receptor is a positive regulator of bone mass accrual, increasing bone formation and decreasing bone resorption. Gene expression studies, cell-specific gene deletion experiments, and analysis of compound mutant mice showed that the parasympathetic nervous system favors bone mass accrual by acting centrally and by decreasing the sympathetic tone. By showing that both arms of the autonomic nervous system affect bone remodeling, this study further underscores the importance of neuronal regulation of bone.
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Affiliation(s)
- Yu Shi
- Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Franck Oury
- Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Vijay K. Yadav
- Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Jürgen Wess
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - X. Sherry Liu
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - X. Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Monzur Murshed
- Division of Biomedical Sciences, Faculty of Dentistry, McGill University, Montreal, Quebec H3A 2B2, Canada
| | - Gerard Karsenty
- Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
- Corresponding author: Gerard Karsenty, M.D., Ph.D., Address: 701 West 168th Street, New York, NY 10032, Phone: 212-305-4011, Fax: 212-923-2090,
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Matis C, Oury F, Remacle S, Lampe X, Gofflot F, Picard JJ, Rijli FM, Rezsohazy R. Identification of Lmo1 as part of a Hox-dependent regulatory network for hindbrain patterning. Dev Dyn 2007; 236:2675-84. [PMID: 17676642 DOI: 10.1002/dvdy.21266] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The embryonic functions of Hox proteins have been extensively investigated in several animal phyla. These transcription factors act as selectors of developmental programmes, to govern the morphogenesis of multiple structures and organs. However, despite the variety of morphogenetic processes Hox proteins are involved in, only a limited set of their target genes has been identified so far. To find additional targets, we used a strategy based upon the simultaneous overexpression of Hoxa2 and its cofactors Pbx1 and Prep in a cellular model. Among genes whose expression was upregulated, we identified LMO1, which codes for an intertwining LIM-only factor involved in protein-DNA oligomeric complexes. By analysing its expression in Hox knockout mice, we show that Lmo1 is differentially regulated by Hoxa2 and Hoxb2, in specific columns of hindbrain neuronal progenitors. These results suggest that Lmo1 takes part in a Hox paralogue 2-dependent network regulating anteroposterior and dorsoventral hindbrain patterning.
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Affiliation(s)
- Christelle Matis
- Unit of Developmental Genetics, Université Catholique de Louvain, Brussels, Belgium
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Oury F, Murakami Y, Renaud JS, Pasqualetti M, Charnay P, Ren SY, Rijli FM. Hoxa2- and rhombomere-dependent development of the mouse facial somatosensory map. Science 2006; 313:1408-13. [PMID: 16902088 DOI: 10.1126/science.1130042] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In the mouse trigeminal pathway, sensory inputs from distinct facial structures, such as whiskers or lower jaw and lip, are topographically mapped onto the somatosensory cortex through relay stations in the thalamus and hindbrain. In the developing hindbrain, the mechanisms generating such maps remain elusive. We found that in the principal sensory nucleus, the whisker-related map is contributed by rhombomere 3-derived neurons, whereas the rhombomere 2-derived progeny supply the lower jaw and lip representation. Moreover, early Hoxa2 expression in neuroepithelium prevents the trigeminal nerve from ectopically projecting to the cerebellum, whereas late expression in the principal sensory nucleus promotes selective arborization of whisker-related afferents and topographic connectivity to the thalamus. Hoxa2 inactivation further results in the absence of whisker-related maps in the postnatal brain. Thus, Hoxa2- and rhombomere 3-dependent cues determine the whisker area map and are required for the assembly of the whisker-to-barrel somatosensory circuit.
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Affiliation(s)
- Franck Oury
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/Université Louis Pasteur, UMR 7104, BP 10142, Communauté Urbaine de Strasbourg, 67404 Illkirch Cedex, France
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Oury F, Faucher C, Rives I, Bensaïd M, Bouche G, Darbon JM. Regulation of cyclic adenosine 3',5'-monophosphate-dependent protein kinase activity and regulatory subunit RII beta content by basic fibroblast growth factor (bFGF) during granulosa cell differentiation: possible implication of protein kinase C in bFGF action. Biol Reprod 1992; 47:202-12. [PMID: 1327204 DOI: 10.1095/biolreprod47.2.202] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
We have previously shown that basic fibroblast growth factor (bFGF) inhibits the FSH-induced differentiation of cultured rat granulosa cells, as manifested by prominent reduction of the LH receptor expression. We now investigate the possible sites and mechanism of action of bFGF. Whereas bFGF decreased the cAMP formation induced by FSH, it enhanced the cAMP production caused by cholera toxin and forskolin, suggesting that bFGF exerted its inhibitory action on cell differentiation at a step to cAMP production. Photoaffinity labeling with 8-azido-[32P]cAMP revealed that bFGF markedly reduced the FSH-induced increase in the level of regulatory subunit RII beta of the cAMP-dependent protein kinase (PKA) type II. In contrast to its striking effect on RII beta expression (70-80% inhibition), bFGF decreased PKA enzymatic activity by only 30%. On the other hand, transforming growth factor-beta (TGF beta) slightly amplified the stimulatory action of FSH and antagonized the bFGF inhibitory effect on both LH receptor expression and RII beta synthesis. We report that the protein kinase C (PKC) activator 12-O-tetradecanoylphorbol-13-acetate (TPA), which impaired granulosa cell differentiation, also abolished the RII beta synthesis induced by FSH. The activation of PKC by bFGF in granulosa cells was supported by the following findings: (i) bFGF markedly enhanced the production of diacylglycerol (2.3-fold stimulation at 5 min), the intracellular activator of PKC; (ii) bFGF promoted tight association of PKC to cellular membranes, a process that is believed to correlate with the enzyme activation; (iii) bFGF induced the phosphorylation of an endogenous M(r) 78,000/pI 4.7 protein that appears as a specific PKC substrate; (iv) bFGF mimicked the TPA-induced transmodulation of the epidermal growth factor (EGF) receptor, reducing by 36% the 125I-EGF binding on granulosa cells. We conclude that bFGF may exert its repressive action on RII beta synthesis, PKA activity, and granulosa cell differentiation by primarily targeting PKC activation.
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Affiliation(s)
- F Oury
- INSERM U133, Faculté de Médecine Rangueil, Toulouse, France
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Darbon JM, Oury F, Laredo J, Bayard F. Tumor necrosis factor-alpha inhibits follicle-stimulating hormone-induced differentiation in cultured rat granulosa cells. Biochem Biophys Res Commun 1989; 163:1038-46. [PMID: 2551266 DOI: 10.1016/0006-291x(89)92326-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have investigated the effects of TNF-alpha on FSH-induced LH receptor expression, cAMP and progesterone production in cultured rat granulosa cells. TNF-alpha (0.5-100 ng/ml) inhibits the stimulating action of FSH on LH receptor formation in a dose-dependent manner with an IC50 of 1 ng/ml and an almost complete suppression of LH receptor induction for 50-100 ng/ml TNF-alpha. The inhibitory effect of TNF-alpha is not due to variations in cell number or viability but rather to a reduction of the LH receptor content per cell with no change in binding affinity (KD = 0.8 x 10(-10)M). TNF-alpha also inhibits the FSH-induced cAMP production but at a lower extent, with a maximum reduction of 60% for 100 ng/ml TNF-alpha. Moreover, TNF-alpha impairs the LH receptor formation induced by forskolin, cholera toxin or 8-Bromo-cAMP, indicating that the cytokine also acts at a step distal to FSH receptor and to cAMP formation. Finally, TNF-alpha decreases dramatically the progesterone synthesis that is stimulated by FSH, with a reduction to undetectable levels on and after 10 ng/ml TNF-alpha. These results suggest that TNF-alpha may drastically reduce the capacity of granulosa cells to differentiate upon FSH stimulation and to respond to LH during the physiological ovarian follicular maturation. Such anti-gonadotropic action of TNF-alpha on granulosa cell differentiation may be also relevant to the alteration of ovarian function during physiopathological processes like inflammatory or infection diseases.
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Affiliation(s)
- J M Darbon
- INSERM U168, Department of Endocrinology, CHU Rangueil, Université Paul Sabatier, Toulouse, France
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Abstract
We have investigated the effects of bFGF on both the FSH-induced LH receptor expression and cAMP production in cultured rat granulosa cells. Concentrations of pure FGF, from 10(-12) M to 10(-10) M, progressively inhibit the stimulatory actions of FSH with an ED50 of approximately 4 x 10(-12) M for both parameters. Higher FGF concentrations, from 4 x 10(-10) M to 10(-8) M, lead to a gradual reduction of the growth factor inhibitory effect. The effects of FGF are more prominent on the modulation of LH receptors than on the FSH-induced cAMP production. Moreover, FGF impairs the LH receptor formation induced by cholera toxin or 8-Bromo-cAMP, indicating that the growth factor also acts at a step distal to cAMP formation. The inhibitory effect of FGF on LH receptor expression increases during the entire course of granulosa cell differentiation, from 24 to 96 h, and is not due to variations in cell number or viability, but rather to a change in the content of LH receptors with no significant modification of binding affinity (KD congruent to 0.8 x 10(-10) M). These results suggest that bFGF may acutely regulate the capacity of granulosa cells to differentiate upon FSH stimulation and to respond to LH during the ovarian follicular maturation.
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Affiliation(s)
- F Oury
- Inserm U 168, Department of Endocrinology, CHU Rangueil, Université Paul Sabatier, Toulouse, France
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Darbon JM, Oury F, Clamens S, Bayard F. TPA induces subcellular translocation and subsequent down-regulation of both phorbol ester binding and protein kinase C activities in MCF-7 cells. Biochem Biophys Res Commun 1987; 146:537-46. [PMID: 3476116 DOI: 10.1016/0006-291x(87)90562-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Phorbol ester TPA has been previously shown to induce a rapid translocation, followed by a progressive decline of protein kinase C activity in MCF-7 cells (J.M. Darbon et al, 1986, Biochem. Biophys. Res. Comm. 137: 1159-1166). We show now a parallel TPA-induced movement of phorbol ester binding sites from the cytosolic to the particulate fraction with no change in the binding affinities for the (3H) PDBu probe (KD congruent to 2 nM). The subcellular redistribution process is followed by a rapid decrease of the phorbol ester binding capacity at the membrane level. The concomitant decline in both phorbol ester binding and protein kinase C activities that we observed during the course of TPA treatment strongly argues for a real down-regulation of the enzyme in phorbol ester-treated MCF-7 cells. The molecular mechanisms of these events and their relations to the inhibition of cell growth remain to be clarified.
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Chalut J, Diard F, Djian A, Girard J, Lamarque JL, Lautrou J, May JP, Nahum H, Oury F, Triquet O, Bismuth V. [Cholangiography under perfusion]. J Radiol Electrol Med Nucl 1975; 56:581-9. [PMID: 1185696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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