1
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Delbès AS, Quiñones M, Gobet C, Castel J, Denis RGP, Berthelet J, Weger BD, Challet E, Charpagne A, Metairon S, Piccand J, Kraus M, Rohde BH, Bial J, Wilson EM, Vedin LL, Minniti ME, Pedrelli M, Parini P, Gachon F, Luquet S. Mice with humanized livers reveal the role of hepatocyte clocks in rhythmic behavior. Sci Adv 2023; 9:eadf2982. [PMID: 37196091 DOI: 10.1126/sciadv.adf2982] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 04/13/2023] [Indexed: 05/19/2023]
Abstract
The synchronization of circadian clock depends on a central pacemaker located in the suprachiasmatic nuclei. However, the potential feedback of peripheral signals on the central clock remains poorly characterized. To explore whether peripheral organ circadian clocks may affect the central pacemaker, we used a chimeric model in which mouse hepatocytes were replaced by human hepatocytes. Liver humanization led to reprogrammed diurnal gene expression and advanced the phase of the liver circadian clock that extended to muscle and the entire rhythmic physiology. Similar to clock-deficient mice, liver-humanized mice shifted their rhythmic physiology more rapidly to the light phase under day feeding. Our results indicate that hepatocyte clocks can affect the central pacemaker and offer potential perspectives to apprehend pathologies associated with altered circadian physiology.
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Affiliation(s)
- Anne-Sophie Delbès
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
| | - Mar Quiñones
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
- Instituto de Investigación Sanitaria de Santiago de Compostela, Complexo Hospitalario Universitario de Santiago (CHUS/SERGAS), Travesía da Choupana s/n, 15706, Santiago de Compostela, Spain
- CIBER de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029, Madrid, Spain
| | - Cédric Gobet
- Nestlé Research, Société des Produits Nestlé, CH-1015 Lausanne, Switzerland
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland
| | - Julien Castel
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
| | - Raphaël G P Denis
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
- Institut Cochin, Université Paris Cité, INSERM U1016, CNRS UMR 8104, Paris 75014, France
| | - Jérémy Berthelet
- Université Paris Cité, CNRS, Unité Epigenetique et Destin Cellulaire, Paris F-75013, France
| | - Benjamin D Weger
- Nestlé Research, Société des Produits Nestlé, CH-1015 Lausanne, Switzerland
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072 Australia
| | - Etienne Challet
- Institute for Cellular and Integrative Neurosciences, CNRS and University of Strasbourg, Strasbourg, France
| | - Aline Charpagne
- Nestlé Research, Société des Produits Nestlé, CH-1015 Lausanne, Switzerland
| | - Sylviane Metairon
- Nestlé Research, Société des Produits Nestlé, CH-1015 Lausanne, Switzerland
| | - Julie Piccand
- Nestlé Research, Société des Produits Nestlé, CH-1015 Lausanne, Switzerland
| | - Marine Kraus
- Nestlé Research, Société des Produits Nestlé, CH-1015 Lausanne, Switzerland
| | - Bettina H Rohde
- Eurofins Genomics Europe Sequencing GmbH, European Genome and Diagnostics Centre, Konstanz, Germany
| | | | | | - Lise-Lotte Vedin
- Cardio Metabolic Unit, Department of Medicine and department of Laboratory Medicine, Karolinska Institute, Huddinge, Sweden
| | - Mirko E Minniti
- Cardio Metabolic Unit, Department of Medicine and department of Laboratory Medicine, Karolinska Institute, Huddinge, Sweden
| | - Matteo Pedrelli
- Cardio Metabolic Unit, Department of Medicine and department of Laboratory Medicine, Karolinska Institute, Huddinge, Sweden
- Medical Unit Endocrinology, Theme Inflammation and Ageing, Karolinska University Hospital, Stockholm, Sweden
| | - Paolo Parini
- Cardio Metabolic Unit, Department of Medicine and department of Laboratory Medicine, Karolinska Institute, Huddinge, Sweden
- Medical Unit Endocrinology, Theme Inflammation and Ageing, Karolinska University Hospital, Stockholm, Sweden
| | - Frédéric Gachon
- Nestlé Research, Société des Produits Nestlé, CH-1015 Lausanne, Switzerland
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072 Australia
| | - Serge Luquet
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
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2
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Cornejo MP, Denis RGP, García Romero G, Fernández G, Reynaldo M, Luquet S, Perello M. Ghrelin treatment induces rapid and delayed increments of food intake: a heuristic model to explain ghrelin's orexigenic effects. Cell Mol Life Sci 2021; 78:6689-6708. [PMID: 34559253 DOI: 10.1007/s00018-021-03937-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 05/18/2021] [Revised: 08/10/2021] [Accepted: 09/06/2021] [Indexed: 12/22/2022]
Abstract
Ghrelin is a stomach-derived peptide hormone with salient roles in the regulation of energy balance and metabolism. Notably, ghrelin is recognized as the most powerful known circulating orexigenic hormone. Here, we systematically investigated the effects of ghrelin on energy homeostasis and found that ghrelin primarily induces a biphasic effect on food intake that has indirect consequences on energy expenditure and nutrient partitioning. We also found that ghrelin-induced biphasic effect on food intake requires the integrity of Agouti-related peptide/neuropeptide Y-producing neurons of the hypothalamic arcuate nucleus, which seem to display a long-lasting activation after a single systemic injection of ghrelin. Finally, we found that different autonomic, hormonal and metabolic satiation signals transiently counteract ghrelin-induced food intake. Based on our observations, we propose a heuristic model to describe how the orexigenic effect of ghrelin and the anorectic food intake-induced rebound sculpt a timely constrain feeding response to ghrelin.
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Affiliation(s)
- María Paula Cornejo
- Laboratory of Neurophysiology, Multidisciplinary Institute of Cell Biology, IMBICE, Argentine Research Council (CONICET), Scientific Research Commission of the Province of Buenos Aires (CIC-PBA) and National University of La Plata (UNLP), Calle 526 S/N entre 10 y 11, PO Box 403, 1900, La Plata, Buenos Aires, Argentina
| | - Raphaël G P Denis
- Unité de Biologie Fonctionnelle et Adaptative (BFA), UMR 8251, CNRS, Université de Paris, 75013, Paris, France
| | - Guadalupe García Romero
- Laboratory of Neurophysiology, Multidisciplinary Institute of Cell Biology, IMBICE, Argentine Research Council (CONICET), Scientific Research Commission of the Province of Buenos Aires (CIC-PBA) and National University of La Plata (UNLP), Calle 526 S/N entre 10 y 11, PO Box 403, 1900, La Plata, Buenos Aires, Argentina
| | - Gimena Fernández
- Laboratory of Neurophysiology, Multidisciplinary Institute of Cell Biology, IMBICE, Argentine Research Council (CONICET), Scientific Research Commission of the Province of Buenos Aires (CIC-PBA) and National University of La Plata (UNLP), Calle 526 S/N entre 10 y 11, PO Box 403, 1900, La Plata, Buenos Aires, Argentina
| | - Mirta Reynaldo
- Laboratory of Neurophysiology, Multidisciplinary Institute of Cell Biology, IMBICE, Argentine Research Council (CONICET), Scientific Research Commission of the Province of Buenos Aires (CIC-PBA) and National University of La Plata (UNLP), Calle 526 S/N entre 10 y 11, PO Box 403, 1900, La Plata, Buenos Aires, Argentina
| | - Serge Luquet
- Unité de Biologie Fonctionnelle et Adaptative (BFA), UMR 8251, CNRS, Université de Paris, 75013, Paris, France
| | - Mario Perello
- Laboratory of Neurophysiology, Multidisciplinary Institute of Cell Biology, IMBICE, Argentine Research Council (CONICET), Scientific Research Commission of the Province of Buenos Aires (CIC-PBA) and National University of La Plata (UNLP), Calle 526 S/N entre 10 y 11, PO Box 403, 1900, La Plata, Buenos Aires, Argentina.
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3
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Just PA, Charawi S, Denis RGP, Savall M, Traore M, Foretz M, Bastu S, Magassa S, Senni N, Sohier P, Wursmer M, Vasseur-Cognet M, Schmitt A, Le Gall M, Leduc M, Guillonneau F, De Bandt JP, Mayeux P, Romagnolo B, Luquet S, Bossard P, Perret C. Author Correction: Lkb1 suppresses amino acid-driven gluconeogenesis in the liver. Nat Commun 2021; 12:1831. [PMID: 33731695 PMCID: PMC7969603 DOI: 10.1038/s41467-021-22104-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Pierre-Alexandre Just
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,APHP, Centre-Université de Paris, Paris, France
| | - Sara Charawi
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Raphaël G P Denis
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205, Paris, France
| | - Mathilde Savall
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Massiré Traore
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Marc Foretz
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Sultan Bastu
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | | | - Nadia Senni
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Pierre Sohier
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Maud Wursmer
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Mireille Vasseur-Cognet
- UMR IRD 242, UPEC, CNRS 7618, UPMC 113, INRA 1392, Sorbonne Universités Paris and Institut d'Ecologie et des Sciences de l'Environnement de Paris, Bondy, France
| | - Alain Schmitt
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,Electron Miscroscopy Facility, Institut Cochin, F75014, Paris, France
| | - Morgane Le Gall
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Marjorie Leduc
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - François Guillonneau
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | | | - Patrick Mayeux
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Béatrice Romagnolo
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Serge Luquet
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205, Paris, France
| | - Pascale Bossard
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Christine Perret
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.
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4
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Prola A, Blondelle J, Vandestienne A, Piquereau J, Denis RGP, Guyot S, Chauvin H, Mourier A, Maurer M, Henry C, Khadhraoui N, Gallerne C, Molinié T, Courtin G, Guillaud L, Gressette M, Solgadi A, Dumont F, Castel J, Ternacle J, Demarquoy J, Malgoyre A, Koulmann N, Derumeaux G, Giraud MF, Joubert F, Veksler V, Luquet S, Relaix F, Tiret L, Pilot-Storck F. Cardiolipin content controls mitochondrial coupling and energetic efficiency in muscle. Sci Adv 2021; 7:7/1/eabd6322. [PMID: 33523852 PMCID: PMC7775760 DOI: 10.1126/sciadv.abd6322] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 11/04/2020] [Indexed: 05/11/2023]
Abstract
Unbalanced energy partitioning participates in the rise of obesity, a major public health concern in many countries. Increasing basal energy expenditure has been proposed as a strategy to fight obesity yet raises efficiency and safety concerns. Here, we show that mice deficient for a muscle-specific enzyme of very-long-chain fatty acid synthesis display increased basal energy expenditure and protection against high-fat diet-induced obesity. Mechanistically, muscle-specific modulation of the very-long-chain fatty acid pathway was associated with a reduced content of the inner mitochondrial membrane phospholipid cardiolipin and a blunted coupling efficiency between the respiratory chain and adenosine 5'-triphosphate (ATP) synthase, which was restored by cardiolipin enrichment. Our study reveals that selective increase of lipid oxidative capacities in skeletal muscle, through the cardiolipin-dependent lowering of mitochondrial ATP production, provides an effective option against obesity at the whole-body level.
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Affiliation(s)
- Alexandre Prola
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Jordan Blondelle
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Aymeline Vandestienne
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Jérôme Piquereau
- UMR-S 1180, INSERM, Université Paris-Sud, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | | | - Stéphane Guyot
- Université Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000 Dijon, France
| | - Hadrien Chauvin
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Arnaud Mourier
- Université Bordeaux, CNRS, IBGC, UMR 5095, F-33000 Bordeaux, France
| | - Marie Maurer
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Céline Henry
- PAPPSO, Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, F-78350 Jouy-en-Josas, France
| | - Nahed Khadhraoui
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Cindy Gallerne
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Thibaut Molinié
- Université Bordeaux, CNRS, IBGC, UMR 5095, F-33000 Bordeaux, France
| | - Guillaume Courtin
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Laurent Guillaud
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Mélanie Gressette
- UMR-S 1180, INSERM, Université Paris-Sud, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Audrey Solgadi
- UMS IPSIT, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Florent Dumont
- UMS IPSIT, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Julien Castel
- Université de Paris, BFA, UMR 8251, CNRS, F-75014 Paris, France
| | - Julien Ternacle
- Université Paris-Est Créteil, INSERM, IMRB, Team Derumeaux, F-94010 Creteil, France
| | - Jean Demarquoy
- Université Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000 Dijon, France
| | - Alexandra Malgoyre
- Département Environnements Opérationnels, Unité de Physiologie des Exercices et Activités en Conditions Extrêmes, Institut de Recherche Biomédicale des Armées, F-91220 Brétigny-Sur-Orge, France
- LBEPS, Université Evry, IRBA, Université Paris-Saclay, F-91025 Evry, France
| | - Nathalie Koulmann
- Département Environnements Opérationnels, Unité de Physiologie des Exercices et Activités en Conditions Extrêmes, Institut de Recherche Biomédicale des Armées, F-91220 Brétigny-Sur-Orge, France
- LBEPS, Université Evry, IRBA, Université Paris-Saclay, F-91025 Evry, France
- École du Val de Grâce, Place Alphonse Laveran, F-75005 Paris, France
| | - Geneviève Derumeaux
- Université Paris-Est Créteil, INSERM, IMRB, Team Derumeaux, F-94010 Creteil, France
| | | | - Frédéric Joubert
- Laboratoire Jean Perrin, CNRS, Sorbonne Université, UMR 8237, Paris, F-75005, France
| | - Vladimir Veksler
- UMR-S 1180, INSERM, Université Paris-Sud, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Serge Luquet
- Université de Paris, BFA, UMR 8251, CNRS, F-75014 Paris, France
| | - Frédéric Relaix
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France.
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Laurent Tiret
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France.
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
| | - Fanny Pilot-Storck
- Université Paris-Est Créteil, INSERM, IMRB, Team Relaix, F-94010 Créteil, France.
- EnvA, IMRB, F-94700 Maisons-Alfort, France
- EFS, IMRB, F-94010 Créteil, France
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5
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Just PA, Charawi S, Denis RGP, Savall M, Traore M, Foretz M, Bastu S, Magassa S, Senni N, Sohier P, Wursmer M, Vasseur-Cognet M, Schmitt A, Le Gall M, Leduc M, Guillonneau F, De Bandt JP, Mayeux P, Romagnolo B, Luquet S, Bossard P, Perret C. Lkb1 suppresses amino acid-driven gluconeogenesis in the liver. Nat Commun 2020; 11:6127. [PMID: 33257663 PMCID: PMC7705018 DOI: 10.1038/s41467-020-19490-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 05/22/2019] [Accepted: 10/12/2020] [Indexed: 12/13/2022] Open
Abstract
Excessive glucose production by the liver is a key factor in the hyperglycemia observed in type 2 diabetes mellitus (T2DM). Here, we highlight a novel role of liver kinase B1 (Lkb1) in this regulation. We show that mice with a hepatocyte-specific deletion of Lkb1 have higher levels of hepatic amino acid catabolism, driving gluconeogenesis. This effect is observed during both fasting and the postprandial period, identifying Lkb1 as a critical suppressor of postprandial hepatic gluconeogenesis. Hepatic Lkb1 deletion is associated with major changes in whole-body metabolism, leading to a lower lean body mass and, in the longer term, sarcopenia and cachexia, as a consequence of the diversion of amino acids to liver metabolism at the expense of muscle. Using genetic, proteomic and pharmacological approaches, we identify the aminotransferases and specifically Agxt as effectors of the suppressor function of Lkb1 in amino acid-driven gluconeogenesis. Excessive glucose production by the liver contributes to poor blood glucose control in type 2 diabetes. Here the authors report that the liver kinase B1 (Lkb1) suppresses amino acid driven postprandial glucose production in the liver through the aminotransferase Agxt.
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Affiliation(s)
- Pierre-Alexandre Just
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,APHP, Centre-Université de Paris, Paris, France
| | - Sara Charawi
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Raphaël G P Denis
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205, Paris, France
| | - Mathilde Savall
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Massiré Traore
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Marc Foretz
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Sultan Bastu
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | | | - Nadia Senni
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Pierre Sohier
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Maud Wursmer
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Mireille Vasseur-Cognet
- UMR IRD 242, UPEC, CNRS 7618, UPMC 113, INRA 1392, Sorbonne Universités Paris and Institut d'Ecologie et des Sciences de l'Environnement de Paris, Bondy, France
| | - Alain Schmitt
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,Electron Miscroscopy Facility, Institut Cochin, F75014, Paris, France
| | - Morgane Le Gall
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Marjorie Leduc
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - François Guillonneau
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | | | - Patrick Mayeux
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Béatrice Romagnolo
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Serge Luquet
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205, Paris, France
| | - Pascale Bossard
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Christine Perret
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.
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6
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Bravo-San Pedro JM, Sica V, Martins I, Pol J, Loos F, Maiuri MC, Durand S, Bossut N, Aprahamian F, Anagnostopoulos G, Niso-Santano M, Aranda F, Ramírez-Pardo I, Lallement J, Denom J, Boedec E, Gorwood P, Ramoz N, Clément K, Pelloux V, Rohia A, Pattou F, Raverdy V, Caiazzo R, Denis RGP, Boya P, Galluzzi L, Madeo F, Migrenne-Li S, Cruciani-Guglielmacci C, Tavernarakis N, López-Otín C, Magnan C, Kroemer G. Acyl-CoA-Binding Protein Is a Lipogenic Factor that Triggers Food Intake and Obesity. Cell Metab 2019; 30:1171. [PMID: 31801056 DOI: 10.1016/j.cmet.2019.10.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Bravo-San Pedro JM, Sica V, Martins I, Pol J, Loos F, Maiuri MC, Durand S, Bossut N, Aprahamian F, Anagnostopoulos G, Niso-Santano M, Aranda F, Ramírez-Pardo I, Lallement J, Denom J, Boedec E, Gorwood P, Ramoz N, Clément K, Pelloux V, Rohia A, Pattou F, Raverdy V, Caiazzo R, Denis RGP, Boya P, Galluzzi L, Madeo F, Migrenne-Li S, Cruciani-Guglielmacci C, Tavernarakis N, López-Otín C, Magnan C, Kroemer G. Acyl-CoA-Binding Protein Is a Lipogenic Factor that Triggers Food Intake and Obesity. Cell Metab 2019; 30:754-767.e9. [PMID: 31422903 DOI: 10.1016/j.cmet.2019.07.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 06/26/2019] [Accepted: 07/19/2019] [Indexed: 12/18/2022]
Abstract
Autophagy facilitates the adaptation to nutritional stress. Here, we show that short-term starvation of cultured cells or mice caused the autophagy-dependent cellular release of acyl-CoA-binding protein (ACBP, also known as diazepam-binding inhibitor, DBI) and consequent ACBP-mediated feedback inhibition of autophagy. Importantly, ACBP levels were elevated in obese patients and reduced in anorexia nervosa. In mice, systemic injection of ACBP protein inhibited autophagy, induced lipogenesis, reduced glycemia, and stimulated appetite as well as weight gain. We designed three approaches to neutralize ACBP, namely, inducible whole-body knockout, systemic administration of neutralizing antibodies, and induction of antiACBP autoantibodies in mice. ACBP neutralization enhanced autophagy, stimulated fatty acid oxidation, inhibited appetite, reduced weight gain in the context of a high-fat diet or leptin deficiency, and accelerated weight loss in response to dietary changes. In conclusion, neutralization of ACBP might constitute a strategy for treating obesity and its co-morbidities.
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Affiliation(s)
- José M Bravo-San Pedro
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Valentina Sica
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Isabelle Martins
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Jonathan Pol
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Friedemann Loos
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Maria Chiara Maiuri
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Sylvère Durand
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Noélie Bossut
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Fanny Aprahamian
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Gerasimos Anagnostopoulos
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France; Faculté de Médecine, Université de Paris Saclay, Kremlin Bicêtre, France
| | - Mireia Niso-Santano
- Biomedical Research Networking Center on Neurodegenerative Diseases (CIBERNED), Department of Biochemistry and Molecular Biology and Genetics, University of Extremadura, Faculty of Nursing and Occupational Therapy, Cáceres, Spain
| | - Fernando Aranda
- Group of Immune receptors of the Innate and Adaptive System, Institut d'Investigacions Biomédiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Ignacio Ramírez-Pardo
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
| | - Justine Lallement
- Université of Paris, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Jessica Denom
- Université of Paris, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Erwan Boedec
- INSERM U1149, Center of Research on Inflammation, Paris, France; Paris Diderot University, Sorbonne Paris Cité, Paris, France; National French Center of Scientific Research (CNRS), ERL 8252, Paris, France
| | - Philip Gorwood
- Clinique des Maladies Mentales et de l'Encéphale (CMME), Hôpital Sainte-Anne, Université of Paris, Paris, France; INSERM U894, Centre de Psychiatrie et Neurosciences (CPN), Université of Paris, Paris, France
| | - Nicolas Ramoz
- INSERM U894, Centre de Psychiatrie et Neurosciences (CPN), Université of Paris, Paris, France
| | - Karine Clément
- Sorbonne Université, Inserm, NutriOMics team, Pitié-Salpêtrière Hospital, Paris, France
| | - Veronique Pelloux
- Sorbonne Université, Inserm, NutriOMics team, Pitié-Salpêtrière Hospital, Paris, France
| | - Alili Rohia
- Sorbonne Université, Inserm, NutriOMics team, Pitié-Salpêtrière Hospital, Paris, France
| | - François Pattou
- University of Lille, CHU Lille, Inserm UMR 1190, European Genomic Institute for Diabetes, Lille, France
| | - Violeta Raverdy
- University of Lille, CHU Lille, Inserm UMR 1190, European Genomic Institute for Diabetes, Lille, France
| | - Robert Caiazzo
- University of Lille, CHU Lille, Inserm UMR 1190, European Genomic Institute for Diabetes, Lille, France
| | - Raphaël G P Denis
- Université of Paris, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Patricia Boya
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
| | - Lorenzo Galluzzi
- Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA; Sandra and Edward Meyer Cancer Center, New York, NY, USA; Department of Dermatology, Yale School of Medicine, New Haven, CT, USA
| | - Frank Madeo
- BioTechMed, Graz, Austria; Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstrasse, Graz, Austria
| | - Stéphanie Migrenne-Li
- Université of Paris, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | | | - Nektarios Tavernarakis
- Department of Basic Sciences, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece; Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Hellas, Nikolaou Plastira 100, Heraklion, Crete, Greece
| | - Carlos López-Otín
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
| | - Christophe Magnan
- Université of Paris, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Guido Kroemer
- INSERM U1138, Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, Paris, France; Team "Metabolism, Cancer & Immunity", Équipe 11 labellisée par la Ligue contre le Cancer, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France; Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France; Suzhou Institute for Systems Medicine, Chinese Academy of Sciences, Suzhou, China; Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden.
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8
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Denis RGP, Busi F, Castel J, Morel C, Zhang W, Bui LC, Sugamori KS, Prokopec SD, Boutros PC, Grant DM, Rodrigues-Lima F, Luquet S, Dupret JM. A readout of metabolic efficiency in arylamine N-acetyltransferase-deficient mice reveals minor energy metabolism changes. FEBS Lett 2019; 593:831-841. [PMID: 30883722 DOI: 10.1002/1873-3468.13357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 02/26/2019] [Accepted: 03/07/2019] [Indexed: 02/01/2023]
Abstract
Recent studies have revealed a possible link between the activities of polymorphic arylamine N-acetyltransferases (NATs) and energy metabolism. We used a Nat1/Nat2 double knockout (KO) mouse model to demonstrate that ablation of the two Nat genes is associated with modest, intermittent alterations in respiratory exchange rate. Pyruvate tolerance tests show that double KO mice have attenuated hepatic gluconeogenesis when maintained on a high-fat/high-sucrose diet. Absence of the two Nat genes also leads to an increase in the hepatic concentration of coenzyme A in mice fed a high-fat/high-sucrose diet. Our results suggest a modest involvement of NAT in energy metabolism in mice, which is consistent with the absence of major phenotypic deregulation of energy metabolism in slow human acetylators.
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Affiliation(s)
- Raphaël G P Denis
- Université Paris Diderot, Sorbonne Paris Cité, Unité BFA, CNRS, UMR 8251, Paris, France
| | - Florent Busi
- Université Paris Diderot, Sorbonne Paris Cité, Unité BFA, CNRS, UMR 8251, Paris, France
| | - Julien Castel
- Université Paris Diderot, Sorbonne Paris Cité, Unité BFA, CNRS, UMR 8251, Paris, France
| | - Chloé Morel
- Université Paris Diderot, Sorbonne Paris Cité, Unité BFA, CNRS, UMR 8251, Paris, France
| | - Wenchao Zhang
- Université Paris Diderot, Sorbonne Paris Cité, Unité BFA, CNRS, UMR 8251, Paris, France.,School of Life Sciences, Lanzhou University, China
| | - Linh-Chi Bui
- Université Paris Diderot, Sorbonne Paris Cité, Unité BFA, CNRS, UMR 8251, Paris, France
| | - Kim S Sugamori
- Department of Pharmacology & Toxicology, University of Toronto, Canada
| | | | - Paul C Boutros
- Department of Pharmacology & Toxicology, University of Toronto, Canada.,Ontario Institute for Cancer Research, Toronto, Canada.,Department of Medical Biophysics, University of Toronto, Canada
| | - Denis M Grant
- Department of Pharmacology & Toxicology, University of Toronto, Canada
| | | | - Serge Luquet
- Université Paris Diderot, Sorbonne Paris Cité, Unité BFA, CNRS, UMR 8251, Paris, France
| | - Jean-Marie Dupret
- Université Paris Diderot, Sorbonne Paris Cité, Unité BFA, CNRS, UMR 8251, Paris, France
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9
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Delbès AS, Castel J, Denis RGP, Morel C, Quiñones M, Everard A, Cani PD, Massiera F, Luquet SH. Prebiotics Supplementation Impact on the Reinforcing and Motivational Aspect of Feeding. Front Endocrinol (Lausanne) 2018; 9:273. [PMID: 29896158 PMCID: PMC5987188 DOI: 10.3389/fendo.2018.00273] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 05/09/2018] [Indexed: 11/25/2022] Open
Abstract
Energy homeostasis is tightly regulated by the central nervous system which responds to nervous and circulating inputs to adapt food intake and energy expenditure. However, the rewarding and motivational aspect of food is tightly dependent of dopamine (DA) release in mesocorticolimbic (MCL) system and could be operant in uncontrolled caloric intake and obesity. Accumulating evidence indicate that manipulating the microbiota-gut-brain axis through prebiotic supplementation can have beneficial impact of the host appetite and body weight. However, the consequences of manipulating the implication of the microbiota-gut-brain axis in the control motivational and hedonic/reinforcing aspects of food are still underexplored. In this study, we investigate whether and how dietary prebiotic fructo-oligosaccharides (FOS) could oppose, or revert, the change in hedonic and homeostatic control of feeding occurring after a 2-months exposure to high-fat high-sugar (HFHS) diet. The reinforcing and motivational components of food reward were assessed using a two-food choice paradigm and a food operant behavioral test in mice exposed to FOS either during or after HFHS exposure. We also performed mRNA expression analysis for key genes involved in limbic and hypothalamic control of feeding. We show in a preventive-like approach, FOS addition of HFHS diet had beneficial impact of hypothalamic neuropeptides, and decreased the operant performance for food but only after an overnight fast while it did not prevent the imbalance in mesolimbic markers for DA signaling induced by palatable diet exposure nor the spontaneous tropism for palatable food when given the choice. However, when FOS was added to control diet after chronic HFHS exposure, although it did not significantly alter body weight loss, it greatly decreased palatable food tropism and consumption and was associated with normalization of MCL markers for DA signaling. We conclude that the nature of the diet (regular chow or HFHS) as well as the timing at which prebiotic supplementation is introduced (preventive or curative) greatly influence the efficacy of the gut-microbiota-brain axis. This crosstalk selectively alters the hedonic or motivational drive to eat and triggers molecular changes in neural substrates involved in the homeostatic and non-homeostatic control of body weight.
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Affiliation(s)
- Anne-Sophie Delbès
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Julien Castel
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Raphaël G. P. Denis
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Chloé Morel
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Mar Quiñones
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
| | - Amandine Everard
- Walloon Excellence in Life Sciences and Biotechnology (WELBIO), Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Patrice D. Cani
- Walloon Excellence in Life Sciences and Biotechnology (WELBIO), Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Florence Massiera
- Laboratoire de Recherche Nutritionnelle KOT CEPRODI SA, Paris, France
| | - Serge H. Luquet
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, Paris, France
- *Correspondence: Serge H. Luquet,
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10
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Denis RGP, Joly-Amado A, Webber E, Langlet F, Schaeffer M, Padilla SL, Cansell C, Dehouck B, Castel J, Delbès AS, Martinez S, Lacombe A, Rouch C, Kassis N, Fehrentz JA, Martinez J, Verdié P, Hnasko TS, Palmiter RD, Krashes MJ, Güler AD, Magnan C, Luquet S. Palatability Can Drive Feeding Independent of AgRP Neurons. Cell Metab 2017; 25:975. [PMID: 28380385 DOI: 10.1016/j.cmet.2017.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Denis RGP, Joly-Amado A, Webber E, Langlet F, Schaeffer M, Padilla SL, Cansell C, Dehouck B, Castel J, Delbès AS, Martinez S, Lacombe A, Rouch C, Kassis N, Fehrentz JA, Martinez J, Verdié P, Hnasko TS, Palmiter RD, Krashes MJ, Güler AD, Magnan C, Luquet S. Palatability Can Drive Feeding Independent of AgRP Neurons. Cell Metab 2015; 22:646-57. [PMID: 26278050 PMCID: PMC5024566 DOI: 10.1016/j.cmet.2015.07.011] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 06/03/2015] [Accepted: 07/17/2015] [Indexed: 01/20/2023]
Abstract
Feeding behavior is exquisitely regulated by homeostatic and hedonic neural substrates that integrate energy demand as well as the reinforcing and rewarding aspects of food. Understanding the net contribution of homeostatic and reward-driven feeding has become critical because of the ubiquitous source of energy-dense foods and the consequent obesity epidemic. Hypothalamic agouti-related peptide-secreting neurons (AgRP neurons) provide the primary orexigenic drive of homeostatic feeding. Using models of neuronal inhibition or ablation, we demonstrate that the feeding response to a fast ghrelin or serotonin receptor agonist relies on AgRP neurons. However, when palatable food is provided, AgRP neurons are dispensable for an appropriate feeding response. In addition, AgRP-ablated mice present exacerbated stress-induced anorexia and palatable food intake--a hallmark of comfort feeding. These results suggest that, when AgRP neuron activity is impaired, neural circuits sensitive to emotion and stress are engaged and modulated by food palatability and dopamine signaling.
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Affiliation(s)
- Raphaël G P Denis
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Aurélie Joly-Amado
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Emily Webber
- Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-1453, USA; National Institute of Drug Abuse, Baltimore, MD 21224, USA
| | - Fanny Langlet
- Institut national de la santé et de la recherche médicale, Jean-Pierre Aubert Research Center, U837, 59000 Lille, France; Faculté de Médecine, Université droit et santé de Lille, 59000 Lille, France
| | - Marie Schaeffer
- Centre National la Recherche Scientifique, Unité Mixte de Recherche 5203, Institut de Génomique Fonctionnelle, 34000 Montpellier, France; Institut national de la santé et de la recherche médicale, U661, 34000 Montpellier, France; Unité Mixte de Recherche 5203, University of Montpellier, 34000 Montpellier, France
| | - Stéphanie L Padilla
- Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA; Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Céline Cansell
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Bénédicte Dehouck
- Institut national de la santé et de la recherche médicale, Jean-Pierre Aubert Research Center, U837, 59000 Lille, France; Faculté de Médecine, Université droit et santé de Lille, 59000 Lille, France
| | - Julien Castel
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Anne-Sophie Delbès
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Sarah Martinez
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Amélie Lacombe
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Claude Rouch
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Nadim Kassis
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Jean-Alain Fehrentz
- Centre National la Recherche Scientifique, Institut des Biomolécules Max Mousseron, Unité Mixte de Recherche 5247, Ecole Nationale Supérieure de Chimie de Montpellier, Université Montpellier, 34093 Montpellier Cedex 5, France
| | - Jean Martinez
- Centre National la Recherche Scientifique, Institut des Biomolécules Max Mousseron, Unité Mixte de Recherche 5247, Ecole Nationale Supérieure de Chimie de Montpellier, Université Montpellier, 34093 Montpellier Cedex 5, France
| | - Pascal Verdié
- Centre National la Recherche Scientifique, Institut des Biomolécules Max Mousseron, Unité Mixte de Recherche 5247, Ecole Nationale Supérieure de Chimie de Montpellier, Université Montpellier, 34093 Montpellier Cedex 5, France
| | - Thomas S Hnasko
- Department of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Richard D Palmiter
- Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA; Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Michael J Krashes
- Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-1453, USA; National Institute of Drug Abuse, Baltimore, MD 21224, USA
| | - Ali D Güler
- Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA; Department of Biochemistry, University of Washington, Seattle, WA 98195, USA; Department of Biology, University of Virginia, Charlottesville, VA 22904-4328, USA
| | - Christophe Magnan
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France
| | - Serge Luquet
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris, France.
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12
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Cansell C, Castel J, Denis RGP, Rouch C, Delbes AS, Martinez S, Mestivier D, Finan B, Maldonado-Aviles JG, Rijnsburger M, Tschöp MH, DiLeone RJ, Eckel RH, la Fleur SE, Magnan C, Hnasko TS, Luquet S. Dietary triglycerides act on mesolimbic structures to regulate the rewarding and motivational aspects of feeding. Mol Psychiatry 2014; 19:1095-105. [PMID: 24732670 PMCID: PMC4303340 DOI: 10.1038/mp.2014.31] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 02/25/2014] [Accepted: 02/26/2014] [Indexed: 12/17/2022]
Abstract
Circulating triglycerides (TGs) normally increase after a meal but are altered in pathophysiological conditions, such as obesity. Although TG metabolism in the brain remains poorly understood, several brain structures express enzymes that process TG-enriched particles, including mesolimbic structures. For this reason, and because consumption of high-fat diet alters dopamine signaling, we tested the hypothesis that TG might directly target mesolimbic reward circuits to control reward-seeking behaviors. We found that the delivery of small amounts of TG to the brain through the carotid artery rapidly reduced both spontaneous and amphetamine-induced locomotion, abolished preference for palatable food and reduced the motivation to engage in food-seeking behavior. Conversely, targeted disruption of the TG-hydrolyzing enzyme lipoprotein lipase specifically in the nucleus accumbens increased palatable food preference and food-seeking behavior. Finally, prolonged TG perfusion resulted in a return to normal palatable food preference despite continued locomotor suppression, suggesting that adaptive mechanisms occur. These findings reveal new mechanisms by which dietary fat may alter mesolimbic circuit function and reward seeking.
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Affiliation(s)
- Céline Cansell
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, F-75205 Paris, France
| | - Julien Castel
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, F-75205 Paris, France
| | - Raphaël G. P. Denis
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, F-75205 Paris, France
| | - Claude Rouch
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, F-75205 Paris, France
| | - Anne-Sophie Delbes
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, F-75205 Paris, France
| | - Sarah Martinez
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, F-75205 Paris, France
| | - Denis Mestivier
- Université Paris Diderot, Sorbonne Paris Cité, Institut Jacques Monod, Paris, France
| | - Brian Finan
- Helmholtz Diabetes Center, Helmholtz Zentrum München, German Research Center for Environmental Health, München/Neuherberg, Germany
| | | | - Merel Rijnsburger
- Department of Endocrinology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Matthias H. Tschöp
- Helmholtz Diabetes Center, Helmholtz Zentrum München, German Research Center for Environmental Health, München/Neuherberg, Germany,Div. of Metabolic Diseases, Dept. of Medicine, Technische Universität München, Germany
| | - Ralph J. DiLeone
- Department of Psychiatry, Yale University School of Medicine New Haven, CT, USA
| | - Robert H. Eckel
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora CO, USA
| | - Susanne E. la Fleur
- Department of Endocrinology and Metabolism, University of Amsterdam, Amsterdam, The Netherlands
| | - Christophe Magnan
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, F-75205 Paris, France
| | - Thomas S. Hnasko
- Department of Neurosciences, University of California, San Diego, La Jolla CA, USA
| | - Serge Luquet
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, F-75205 Paris, France
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Joly-Amado A, Cansell C, Denis RGP, Delbes AS, Castel J, Martinez S, Luquet S. The hypothalamic arcuate nucleus and the control of peripheral substrates. Best Pract Res Clin Endocrinol Metab 2014; 28:725-37. [PMID: 25256767 DOI: 10.1016/j.beem.2014.03.003] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The arcuate nucleus (ARC) of the hypothalamus is particularly regarded as a critical platform that integrates circulating signals of hunger and satiety reflecting energy stores and nutrient availability. Among ARC neurons, pro-opiomelanocortin (POMC) and agouti-related protein and neuropeptide Y (NPY/AgRP neurons) are considered as two opposing branches of the melanocortin signaling pathway. Integration of circulating signals of hunger and satiety results in the release of the melanocortin receptor ligand α-melanocyte-stimulating hormone (αMSH) by the POMC neurons system and decreases feeding and increases energy expenditure. The orexigenic/anabolic action of NPY/AgRP neurons is believed to rely essentially on their inhibitory input onto POMC neurons and second-orders targets. Recent updates in the field have casted a new light on the role of the ARC neurons in the coordinated regulation of peripheral organs involved in the control of nutrient storage, transformation and substrate utilization independent of food intake.
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Affiliation(s)
- Aurélie Joly-Amado
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - Céline Cansell
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - Raphaël G P Denis
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - Anne-Sophie Delbes
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - Julien Castel
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - Sarah Martinez
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - Serge Luquet
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR 8251 CNRS, F-75205 Paris, France.
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Tavernier A, Cavin JB, Le Gall M, Ducroc R, Denis RGP, Cluzeaud F, Guilmeau S, Sakar Y, Barbot L, Kapel N, Le Beyec J, Joly F, Chua S, Luquet S, Bado A. Intestinal deletion of leptin signaling alters activity of nutrient transporters and delayed the onset of obesity in mice. FASEB J 2014; 28:4100-10. [PMID: 24928195 DOI: 10.1096/fj.14-255158] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [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: 04/11/2014] [Accepted: 05/27/2014] [Indexed: 11/11/2022]
Abstract
The importance of B-isoform of leptin receptor (LEPR-B) signaling in the hypothalamus, pancreas, or liver has been well characterized, but in the intestine, a unique site of entry for dietary nutrition into the body, it has been relatively ignored. To address this question, we characterized a mouse model deficient for LEPR-B specifically in intestinal epithelial cells (IECs). (IEC)LEPR-B-knockout (KO) and wild-type (WT) mice were generated by Cre-Lox strategy and fed a normal or high-fat diet (HFD). The analyses of the animals involved histology and immunohistochemistry of intestinal mucosa, indirect calorimetric measurements, whole-body composition, and expression and activities of nutrient transporters. (IEC)LEPR-B-KO mice exhibited a 2-fold increase in length of jejunal villi and have normal growth on a normal diet but were less susceptible (P<0.01) to HFD-induced obesity. No differences occurred in energy intake and expenditure between (IEC)LEPR-B-WT and -KO mice, but (IEC)LEPR-B-KO mice fed an HFD showed increased excreted fats (P<0.05). Activities of the Na(+)/glucose cotransporter SGLT-1 and GLUT2 were unaffected in LEPR-B-KO jejunum, while GLUT5-mediated fructose transport and PepT1-mediated peptide transport were substantially reduced (P<0.01). These data demonstrate that intestinal LEPR-B signaling is important for the onset of diet-induced obesity. They suggest that intestinal LEPR-B could be a potential per os target for prevention against obesity.
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Affiliation(s)
- Annabelle Tavernier
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France
| | - Jean-Baptiste Cavin
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France
| | - Maude Le Gall
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France
| | - Robert Ducroc
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France
| | - Raphaël G P Denis
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 8251, Paris, France
| | - Françoise Cluzeaud
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France
| | - Sandra Guilmeau
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France
| | - Yassine Sakar
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France
| | - Laurence Barbot
- Service de Coprologie Fonctionnelle, Hopital La Pitié Salpêtrière, Paris, France
| | - Nathalie Kapel
- Service de Coprologie Fonctionnelle, Hopital La Pitié Salpêtrière, Paris, France
| | - Johanne Le Beyec
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - Francisca Joly
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France; Service de Gastroenterologie et d'Assistance Nutritive, Hopital Beaujon, Clichy, France; and
| | - Streamson Chua
- Department of Medicine and Neuroscience, Albert Einstein College of Medicine, New York, New York, USA
| | - Serge Luquet
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 8251, Paris, France
| | - Andre Bado
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche en Santé (UMRS) 1149, Unité de Formation et de Recherche (UFR) de Médecine Paris Diderot, Sorbonne Paris Cite, Paris, France;
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Denis RGP, Joly-Amado A, Cansell C, Castel J, Martinez S, Delbes AS, Luquet S. Central orchestration of peripheral nutrient partitioning and substrate utilization: implications for the metabolic syndrome. Diabetes Metab 2013; 40:191-7. [PMID: 24332017 DOI: 10.1016/j.diabet.2013.11.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 11/11/2013] [Indexed: 12/24/2022]
Abstract
Energy homoeostasis is maintained through a complex interplay of nutrient intake and energy expenditure. The central nervous system is an essential component of this regulation, as it integrates circulating signals of hunger and satiety to develop adaptive responses at the behavioural and metabolic levels, while the hypothalamus is regarded as a particularly crucial structure in the brain in terms of energy homoeostasis. The arcuate nucleus (ARC) of the hypothalamus contains at least two intermingled neuronal populations: the neurons that produce neuropeptide Y (NPY); and the Agouti-related protein (AgRP) produced by AgRP/NPY neurons situated below the third ventricle in close proximity to proopiomelanocortin (POMC)-producing neurons. POMC neurons exert their catabolic and anorectic actions by releasing α-melanocyte-stimulating hormone (α-MSH), while AgRP neurons oppose this action by exerting tonic GABAergic inhibition of POMC neurons and releasing the melanocortin receptor inverse agonist AgRP. The release of neurotransmitters and neuropeptides by second-order AgRP neurons appears to take place on a multiple time scale, thereby allowing neuromodulation of preganglionic neuronal activity and subsequent control of nutrient partitioning - in other words, the coordinated regulation of conversion, storage and utilization of carbohydrates vs. lipids. This suggests that the function of AgRP neurons extends beyond the strict regulation of feeding to the regulation of efferent organ activity, such that AgRP neurons may now be viewed as an important bridge between central detection of nutrient availability and peripheral nutrient partitioning, thus providing a mechanistic link between obesity and obesity-related disorders.
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Affiliation(s)
- R G P Denis
- Unité « biologie fonctionnelle et adaptative » (BFA), université Paris Diderot-Paris 7, CNRS EAC 4413, 4, rue Marie-Andrée-Lagroua-Weill-Hallé, bâtiment Buffon, case courrier 7126, 75205 Paris cedex 13, France
| | - A Joly-Amado
- Unité « biologie fonctionnelle et adaptative » (BFA), université Paris Diderot-Paris 7, CNRS EAC 4413, 4, rue Marie-Andrée-Lagroua-Weill-Hallé, bâtiment Buffon, case courrier 7126, 75205 Paris cedex 13, France
| | - C Cansell
- Unité « biologie fonctionnelle et adaptative » (BFA), université Paris Diderot-Paris 7, CNRS EAC 4413, 4, rue Marie-Andrée-Lagroua-Weill-Hallé, bâtiment Buffon, case courrier 7126, 75205 Paris cedex 13, France
| | - J Castel
- Unité « biologie fonctionnelle et adaptative » (BFA), université Paris Diderot-Paris 7, CNRS EAC 4413, 4, rue Marie-Andrée-Lagroua-Weill-Hallé, bâtiment Buffon, case courrier 7126, 75205 Paris cedex 13, France; Centre national de la recherche scientifique-CNRS, EAC 4413, 75205 Paris, France
| | - S Martinez
- Unité « biologie fonctionnelle et adaptative » (BFA), université Paris Diderot-Paris 7, CNRS EAC 4413, 4, rue Marie-Andrée-Lagroua-Weill-Hallé, bâtiment Buffon, case courrier 7126, 75205 Paris cedex 13, France; Centre national de la recherche scientifique-CNRS, EAC 4413, 75205 Paris, France
| | - A S Delbes
- Unité « biologie fonctionnelle et adaptative » (BFA), université Paris Diderot-Paris 7, CNRS EAC 4413, 4, rue Marie-Andrée-Lagroua-Weill-Hallé, bâtiment Buffon, case courrier 7126, 75205 Paris cedex 13, France; Centre national de la recherche scientifique-CNRS, EAC 4413, 75205 Paris, France
| | - S Luquet
- Unité « biologie fonctionnelle et adaptative » (BFA), université Paris Diderot-Paris 7, CNRS EAC 4413, 4, rue Marie-Andrée-Lagroua-Weill-Hallé, bâtiment Buffon, case courrier 7126, 75205 Paris cedex 13, France; Centre national de la recherche scientifique-CNRS, EAC 4413, 75205 Paris, France.
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Auffret J, Viengchareun S, Carré N, Denis RGP, Magnan C, Marie PY, Muscat A, Fève B, Lombès M, Binart N. Beige differentiation of adipose depots in mice lacking prolactin receptor protects against high-fat-diet-induced obesity. FASEB J 2012; 26:3728-37. [PMID: 22637534 DOI: 10.1096/fj.12-204958] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Stimulating conversion of white fat to metabolically active adipocytes (beige fat) constitutes a promising strategy against weight gain and its deleterious associated-disorders. We provide direct evidence that prolactin (PRL), best known for its actions on the mammary gland, plays a pivotal role in energy balance through the control of adipocyte differentiation and fate. Here we show that lack of prolactin receptor (PRLR) causes resistance to high-fat-diet-induced obesity due to enhanced energy expenditure and increased metabolic rate. Mutant mice displayed reduced fat mass associated with appearance of massive brown-like adipocyte foci in perirenal and subcutaneous but not in gonadal fat depots under a high-fat diet. Positron emission tomography imaging further demonstrated the occurrence of these thermogenic brown fat depots in adult mice, providing additional support for recruitable brown-like adipocytes (beigeing) in white fat depots. Consistent with the activation of brown adipose tissue, PRLR inactivation increases expression of master genes controlling brown adipocyte fate (PRDM16) and mitochondrial function (PGC1α, UCP1). Altered pRb/Foxc2 expression suggests that this PRL-regulated pathway may contribute to beige cell commitment. Together, these results provide direct genetic evidence that PRLR affects energy balance and metabolic adaptation in rodents via effects on brown adipose tissue differentiation and function.
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Affiliation(s)
- Julien Auffret
- Institut National de Santé et de Recherche Médicale (INSERM) U693, Le Kremlin-Bicêtre, France
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Cansell C, Denis RGP, Joly-Amado A, Castel J, Luquet S. Arcuate AgRP neurons and the regulation of energy balance. Front Endocrinol (Lausanne) 2012; 3:169. [PMID: 23293630 PMCID: PMC3530831 DOI: 10.3389/fendo.2012.00169] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Accepted: 12/05/2012] [Indexed: 11/13/2022] Open
Abstract
The arcuate nucleus of the hypothalamus contains at least two populations of neurons that continuously monitor signals reflecting energy status and promote the appropriate behavioral and metabolic responses to changes in energy demand. Activation of neurons making pro-opiomelanocortin (POMC) decreases food intake and increases energy expenditure through activation of G protein-coupled melanocortin receptors via the release of α-melanocyte-stimulating hormone. Until recently, the prevailing idea was that the neighboring neurons [agouti-related protein (AgRP) neurons] co-expressing the orexigenic neuropeptides, AgRP, and neuropeptide Y increase feeding by opposing the anorexigenic actions of the POMC neurons. However, it has now been demonstrated that only AgRP neurons activation - not POMC neurons inhibition - is necessary and sufficient to promote feeding. Projections of AgRP-expressing axons innervate mesolimbic, midbrain, and pontine structures where they regulate feeding and feeding-independent functions such as reward or peripheral nutrient partitioning. AgRP neurons also make gamma aminobutyric acid , which is now thought to mediate many of critical functions of these neurons in a melanocortin-independent manner and on a timescale compatible with neuromodulation.
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Affiliation(s)
- Céline Cansell
- Unité de Biologie Fonctionnelle et Adaptative, CNRS-EAC 4413, Sorbonne Paris Cité, Université Paris Diderot-Paris 7Paris, France
| | - Raphaël G. P. Denis
- Unité de Biologie Fonctionnelle et Adaptative, CNRS-EAC 4413, Sorbonne Paris Cité, Université Paris Diderot-Paris 7Paris, France
| | - Aurélie Joly-Amado
- Unité de Biologie Fonctionnelle et Adaptative, CNRS-EAC 4413, Sorbonne Paris Cité, Université Paris Diderot-Paris 7Paris, France
| | - Julien Castel
- Unité de Biologie Fonctionnelle et Adaptative, CNRS-EAC 4413, Sorbonne Paris Cité, Université Paris Diderot-Paris 7Paris, France
- Centre National de la Recherche Scientifique EAC 4413Paris, France
| | - Serge Luquet
- Unité de Biologie Fonctionnelle et Adaptative, CNRS-EAC 4413, Sorbonne Paris Cité, Université Paris Diderot-Paris 7Paris, France
- Centre National de la Recherche Scientifique EAC 4413Paris, France
- *Correspondence: Serge Luquet, Unité de Biologie Fonctionnelle et Adaptative, CNRS-EAC 4413, Sorbonne Paris Cité, Université Paris Diderot-Paris 7, 4 rue Marie-Andrée Lagroua Weill-Hallé, Bâtiment Buffon, Case courrier 7126, 75205 Paris Cedex 13, France. e-mail:
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Denis RGP, Bing C, Brocklehurst S, Harrold JA, Vernon RG, Williams G. Diurnal changes in hypothalamic neuropeptide and SOCS-3 expression: effects of lactation and relationship with serum leptin and food intake. J Endocrinol 2004; 183:173-81. [PMID: 15525585 DOI: 10.1677/joe.1.05659] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Rats normally eat about 85% of their food at night. Lactation increases food intake 3- to 4-fold, but the diurnal pattern of food intake persists. The mechanisms responsible for the diurnal and lactation-induced changes in food intake are still unresolved, hence we have further investigated the possible roles of serum leptin and hypothalamic expression of neuropeptide Y (NPY), agouti-related peptide (AgRP) and pro-opiomelanocortin (POMC) in rats. Suppressor of cytokine signalling-3 (SOCS-3) acts as a feedback inhibitor of leptin signalling in the hypothalamus, hence changes in expression of SOCS-3 were also investigated. Changes in expression of NPY, AgRP or POMC alone could not account for the diurnal changes in intake and their alteration by lactation. However, there were increased AgRP mRNA:POMC mRNA ratios at night and also during lactation, which were very similar to estimated changes in food intake. Such changes in expression may result in dominance of the orexigenic AgRP peptide over the appetite-suppressing POMC-derived peptides, and so could contribute to the hyperphagia in these states. Diurnal and lactation-related changes in the AgRP mRNA:POMC mRNA ratio and food intake are not due to changes in leptin alone. However, hypoleptinaemia, possibly through increased expression of NPY, may contribute to the hyperphagia of lactation. In the dark, expression of SOCS-3 was decreased in non-lactating rats; lactation decreased SOCS-3 expression in both light and dark phases. However, such changes are likely to enhance the ability of leptin-responsive neurones to transmit the leptin signal, and so are unlikely to contribute to either the nocturnal increase in appetite or the hyperphagia of lactation.
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Affiliation(s)
- R G P Denis
- Diabetes and Endocrinology Research Group, Department of Medicine, The University of Liverpool, Liverpool L69 3GA, UK
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Denis RGP, Bing C, Naderali EK, Vernon RG, Williams G. Lactation modulates diurnal expression profiles of specific leptin receptor isoforms in the rat hypothalamus. J Endocrinol 2003; 178:225-32. [PMID: 12904170 DOI: 10.1677/joe.0.1780225] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We investigated the effects of lactation on diurnal changes in serum leptin and hypothalamic expression of the leptin receptor isoforms, Ob-Ra, -Rb, -Rc, -Re and -Rf in rats. In non-lactating rats, serum leptin concentration was increased at night while hypothalamic mRNA levels of Ob-Rb, -Rc and -Re decreased; by contrast, expression of Ob-Ra and Ob-Rf was unchanged at night. There were significant negative correlations between serum leptin and mRNA expression of Ob-Rb (P<0.001) and Ob-Re (P<0.05), which were independent of time of day. In lactating rats, the nocturnal rise in serum leptin was attenuated. Daytime hypothalamic Ob-Rb mRNA levels were significantly lower than in non-lactating controls, and the normal nocturnal decreases in expression of Ob-Rb, -Rc and -Re were lost. The relationship between serum leptin and Ob-Re expression was not changed by lactation. Lactation had no effect on the expression of Ob-Ra mRNA in the hypothalamus. Decreased daytime Ob-Rb expression could lead to reduced hypothalamic sensitivity to leptin, and thus contribute to increased daytime appetite in lactating rats. Moreover, maintaining high levels of Ob-Re expression could, by increasing hypothalamic leptin-binding protein concentration and reducing local leptin bioavailability, further accentuate hyperphagia. Thus, selective changes in expression of specific isoforms of the leptin receptor may contribute to the hyperphagia of lactation in rats.
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Affiliation(s)
- R G P Denis
- Diabetes and Endocrinology Research Group, Department of Medicine, The University of Liverpool, Liverpool, UK
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Abstract
The factors regulating serum leptin concentration and its relationship to the hyperphagia of lactation have been investigated in rats. Lactation results in hypoleptinaemia and loss, or at least marked attenuation, of the nocturnal rise in serum leptin. Litter removal resulted in a fall in food intake and restoration of the nocturnal rise in serum leptin. Returning the litter to the mother after a 48-h absence increased food intake and began to reinitiate milk production, but the nocturnal serum leptin levels were still increased at 48 h after litter restoration. Adjusting litter size to four, eight, ten or fourteen pups at parturition resulted in different rates of litter growth and food intake during the subsequent lactation, but had no effect on the degree of hypoleptinaemia. Reducing litter size from ten to four pups at mid-lactation resulted in a transient increase in both serum leptin and pup growth rate, while food intake fell to a level found in rats suckling four pups throughout lactation. Reducing milk production by injection of bromocriptine increased serum leptin, but did not restore the nocturnal rise in serum leptin; food intake decreased, but remained much higher than in non-lactating rats. Feeding a varied, high-energy diet resulted in a decrease in the weight of food ingested, but no change in calorie intake, and had no effect on the hypoleptinaemia. These studies suggested that the hypoleptinaemia of lactating rats is due to negative energy balance, but the loss of the nocturnal rise in serum leptin is due to the suckling stimulus. The negative energy balance of lactation does not appear to be caused by a physical constraint on food intake. While the hypoleptinaemia should facilitate the hyperphagia of lactation, other orexigenic signals must also be involved.
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Abstract
Lactation markedly increases nutrient requirements in both rodents and ruminants. This is met mostly by increased food intake, but there are also adaptations to increase metabolic efficiency. Despite such changes, lactating animals usually experience periods of negative energy balance. This is not due to a physical constraint on food intake, at least in the rat. Leptin, a hormone secreted by adipocytes, plays an important role in the regulation of appetite and energy balance. During lactation, serum leptin concentration is decreased in both rodents and ruminants, and the nocturnal rise in concentration is lost in rats. Hypoleptinaemia in lactation is primarily a result of negative energy balance. There is also increased clearance of serum leptin, and the attenuation of the nocturnal rise in leptin in rats is at least partly due to the suckling stimulus. Hypoleptinaemia is not the major factor driving hyperphagia in lactating rats, but it probably facilitates the increased food intake. Leptin may play a more important role in this respect in lactating ruminants. Leptin is probably involved in other adaptations that increase metabolic efficiency during lactation. The ability of hypothalamic neuropeptides to respond to leptin does not appear to be altered by lactation in either rodents or ruminants. The reason why lactating animals do not respond to hypoleptinaemia with a further increase in appetite, thereby achieving energy balance, appears to be due to a failure to respond to changes in neuropeptides which mediate the effects of leptin.
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Affiliation(s)
- R G Vernon
- Hannah Research Institute, Ayr, Scotland.
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