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Koch TJ, Saurel M, Bocquillon H, Pisani DF, Bonnabel L, Little A, Stacey R, Rageot M, Regert M. Differences in birch tar composition are explained by adhesive function in the central European Iron Age. PLoS One 2024; 19:e0301103. [PMID: 38568980 PMCID: PMC10990240 DOI: 10.1371/journal.pone.0301103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 03/11/2024] [Indexed: 04/05/2024] Open
Abstract
Birch bark tar is the most widely documented adhesive in prehistoric Europe. More recent periods attest to a diversification in terms of the materials used as adhesives and their application. Some studies have shown that conifer resins and beeswax were added to produce compound adhesives. For the Iron Age, no comparative large-scale studies have been conducted to provide a wider perspective on adhesive technologies. To address this issue, we identify adhesive substances from the Iron Age in north-eastern France. We applied organic residue analysis to 65 samples from 16 archaeological sites. This included residues adhering to ceramics, from vessel surface coatings, repaired ceramics, vessel contents, and adhesive lumps. Our findings show that, even during the Iron Age in north-eastern France, birch bark tar is one of the best-preserved adhesive substances, used for at least 400 years. To a lesser extent, Pinaceae resin and beeswax were also identified. Through statistical analyses, we show that molecular composition differs in samples, correlating with adhesive function. This has implications for our understanding of birch bark tar production, processing and mode of use during the Iron Age in France and beyond.
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Affiliation(s)
- Tabea J. Koch
- Université Côte d’Azur, CEPAM, CNRS, Nice, France
- YEAR Centre, PalaeoHub, Department of Archaeology, University of York, York, United Kingdom
| | - Marion Saurel
- Inrap, Grand Est Nord, UMR 8546 AOROC, Châlons-en-Champagne, France
| | - Hervé Bocquillon
- Inrap, Grand Est Nord, UMR 8546 AOROC, Châlons-en-Champagne, France
| | | | - Lola Bonnabel
- Inrap, Midi-Méditerranée, UMR 8215 Trajectoires, Nîmes, France
| | - Aimée Little
- YEAR Centre, PalaeoHub, Department of Archaeology, University of York, York, United Kingdom
| | - Rebecca Stacey
- Department of Scientific Research, British Museum, London, United Kingdom
| | - Maxime Rageot
- Department of Pre- and Protohistory, Eberhard Karls University of Tübingen, Tübingen, Germany
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2
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Melis N, Rubera I, Giraud S, Cougnon M, Duranton C, Poet M, Jarretou G, Thuillier R, Counillon L, Hauet T, Pellerin L, Tauc M, Pisani DF. Renal Ischemia Tolerance Mediated by eIF5A Hypusination Inhibition Is Regulated by a Specific Modulation of the Endoplasmic Reticulum Stress. Cells 2023; 12:cells12030409. [PMID: 36766751 PMCID: PMC9913814 DOI: 10.3390/cells12030409] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/18/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023] Open
Abstract
Through kidney transplantation, ischemia/reperfusion is known to induce tissular injury due to cell energy shortage, oxidative stress, and endoplasmic reticulum (ER) stress. ER stress stems from an accumulation of unfolded or misfolded proteins in the lumen of ER, resulting in the unfolded protein response (UPR). Adaptive UPR pathways can either restore protein homeostasis or can turn into a stress pathway leading to apoptosis. We have demonstrated that N1-guanyl-1,7-diamineoheptane (GC7), a specific inhibitor of eukaryotic Initiation Factor 5A (eIF5A) hypusination, confers an ischemic protection of kidney cells by tuning their metabolism and decreasing oxidative stress, but its role on ER stress was unknown. To explore this, we used kidney cells pretreated with GC7 and submitted to either warm or cold anoxia. GC7 pretreatment promoted cell survival in an anoxic environment concomitantly to an increase in xbp1 splicing and BiP level while eiF2α phosphorylation and ATF6 nuclear level decreased. These demonstrated a specific modulation of UPR pathways. Interestingly, the pharmacological inhibition of xbp1 splicing reversed the protective effect of GC7 against anoxia. Our results demonstrated that eIF5A hypusination inhibition modulates distinctive UPR pathways, a crucial mechanism for the protection against anoxia/reoxygenation.
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Affiliation(s)
- Nicolas Melis
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Isabelle Rubera
- Université Côte d’Azur, CNRS, LP2M, 06108 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Sebastien Giraud
- INSERM U1313, IRMETIST, Université de Poitiers et CHU de Poitiers, 86000 Poitiers, France
| | - Marc Cougnon
- Université Côte d’Azur, CNRS, LP2M, 06108 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Christophe Duranton
- Université Côte d’Azur, CNRS, LP2M, 06108 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Mallorie Poet
- Université Côte d’Azur, CNRS, LP2M, 06108 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Gisèle Jarretou
- Université Côte d’Azur, CNRS, LP2M, 06108 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Raphaël Thuillier
- INSERM U1313, IRMETIST, Université de Poitiers et CHU de Poitiers, 86000 Poitiers, France
| | - Laurent Counillon
- Université Côte d’Azur, CNRS, LP2M, 06108 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Thierry Hauet
- INSERM U1313, IRMETIST, Université de Poitiers et CHU de Poitiers, 86000 Poitiers, France
| | - Luc Pellerin
- INSERM U1313, IRMETIST, Université de Poitiers et CHU de Poitiers, 86000 Poitiers, France
| | - Michel Tauc
- Université Côte d’Azur, CNRS, LP2M, 06108 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Didier F. Pisani
- Université Côte d’Azur, CNRS, LP2M, 06108 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
- Correspondence:
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3
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Hauet T, Pisani DF. New Strategies Protecting from Ischemia/Reperfusion. Int J Mol Sci 2022; 23:ijms232415867. [PMID: 36555508 PMCID: PMC9779635 DOI: 10.3390/ijms232415867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022] Open
Abstract
This Special Issue aims to highlight new avenues in the management of Ischemia/Reperfusion (I/R) injury [...].
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Affiliation(s)
- Thierry Hauet
- INSERM U1313, IRMETIST, Université de Poitiers et CHU de Poitiers, 86021 Poitiers, France
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4
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Doyen D, Poët M, Jarretou G, Pisani DF, Tauc M, Cougnon M, Argentina M, Bouret Y, Counillon L. Intracellular pH Control by Membrane Transport in Mammalian Cells. Insights Into the Selective Advantages of Functional Redundancy. Front Mol Biosci 2022; 9:825028. [PMID: 35252350 PMCID: PMC8896879 DOI: 10.3389/fmolb.2022.825028] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/06/2022] [Indexed: 12/16/2022] Open
Abstract
Intracellular pH is a vital parameter that is maintained close to neutrality in all mammalian cells and tissues and acidic in most intracellular compartments. After presenting the main techniques used for intracellular an vesicular pH measurements we will briefly recall the main molecular mechanisms that affect and regulate intracellular pH. Following this we will discuss the large functional redundancy found in the transporters of H+ or acid-base equivalents. For this purpose, we will use mathematical modeling to simulate cellular response to persistent and/or transient acidification, in the presence of different transporters, single or in combination. We will also test the presence or absence of intracellular buffering. This latter section will highlight how modeling can yield fundamental insight into deep biological questions such as the utility of functional redundancy in natural selection.
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Affiliation(s)
- Denis Doyen
- Université Côte d’Azur, CNRS, Laboratoire de Physiomédecine Moléculaire, Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
- Centre Hospitalier Universitaire de Nice, Service de Médecine Intensive Réanimation, Hôpital Archet 1, Nice, France
| | - Mallorie Poët
- Université Côte d’Azur, CNRS, Laboratoire de Physiomédecine Moléculaire, Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Gisèle Jarretou
- Université Côte d’Azur, CNRS, Laboratoire de Physiomédecine Moléculaire, Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Didier F. Pisani
- Université Côte d’Azur, CNRS, Laboratoire de Physiomédecine Moléculaire, Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Michel Tauc
- Université Côte d’Azur, CNRS, Laboratoire de Physiomédecine Moléculaire, Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Marc Cougnon
- Université Côte d’Azur, CNRS, Laboratoire de Physiomédecine Moléculaire, Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Mederic Argentina
- Université Côte d’Azur, CNRS, Institut de Physique de Nice, INPHYNI, Nice, France
| | - Yann Bouret
- Centre Hospitalier Universitaire de Nice, Service de Médecine Intensive Réanimation, Hôpital Archet 1, Nice, France
| | - Laurent Counillon
- Université Côte d’Azur, CNRS, Laboratoire de Physiomédecine Moléculaire, Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
- *Correspondence: Laurent Counillon,
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Tauc M, Cougnon M, Carcy R, Melis N, Hauet T, Pellerin L, Blondeau N, Pisani DF. The eukaryotic initiation factor 5A (eIF5A1), the molecule, mechanisms and recent insights into the pathophysiological roles. Cell Biosci 2021; 11:219. [PMID: 34952646 PMCID: PMC8705083 DOI: 10.1186/s13578-021-00733-y] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 12/14/2021] [Indexed: 11/29/2022] Open
Abstract
Since the demonstration of its involvement in cell proliferation, the eukaryotic initiation factor 5A (eIF5A) has been studied principally in relation to the development and progression of cancers in which the isoform A2 is mainly expressed. However, an increasing number of studies report that the isoform A1, which is ubiquitously expressed in normal cells, exhibits novel molecular features that reveal its new relationships between cellular functions and organ homeostasis. At a first glance, eIF5A can be regarded, among other things, as a factor implicated in the initiation of translation. Nevertheless, at least three specificities: (1) its extreme conservation between species, including plants, throughout evolution, (2) its very special and unique post-translational modification through the activating-hypusination process, and finally (3) its close relationship with the polyamine pathway, suggest that the role of eIF5A in living beings remains to be uncovered. In fact, and beyond its involvement in facilitating the translation of proteins containing polyproline residues, eIF5A is implicated in various physiological processes including ischemic tolerance, metabolic adaptation, aging, development, and immune cell differentiation. These newly discovered physiological properties open up huge opportunities in the clinic for pathologies such as, for example, the ones in which the oxygen supply is disrupted. In this latter case, organ transplantation, myocardial infarction or stroke are concerned, and the current literature defines eIF5A as a new drug target with a high level of potential benefit for patients with these diseases or injuries. Moreover, the recent use of genomic and transcriptomic association along with metadata studies also revealed the implication of eIF5A in genetic diseases. Thus, this review provides an overview of eIF5A from its molecular mechanism of action to its physiological roles and the clinical possibilities that have been recently reported in the literature.
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Affiliation(s)
- Michel Tauc
- LP2M, CNRS, Université Côte d'Azur, Nice, France. .,Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France. .,Laboratoire de Physiomédecine Moléculaire, UMR7370, Faculté de Médecine, CNRS, Université Côte d'Azur, 28 Avenue de Valombrose, 06107, Nice Cedex, France.
| | - Marc Cougnon
- LP2M, CNRS, Université Côte d'Azur, Nice, France.,Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Romain Carcy
- Service de Réanimation Polyvalente et Service de Réanimation des Urgences Vitales, CHU Nice, Hôpital Pasteur 2, Nice, France
| | - Nicolas Melis
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Thierry Hauet
- INSERM, IRTOMIT, CHU de Poitiers, Université de Poitiers, La Milétrie, Poitiers, France
| | - Luc Pellerin
- INSERM, IRTOMIT, CHU de Poitiers, Université de Poitiers, La Milétrie, Poitiers, France
| | - Nicolas Blondeau
- Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France.,IPMC, CNRS, Université Côte d'Azur, Valbonne, France
| | - Didier F Pisani
- LP2M, CNRS, Université Côte d'Azur, Nice, France.,Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
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Melis N, Carcy R, Rubera I, Cougnon M, Duranton C, Tauc M, Pisani DF. Akt Inhibition as Preconditioning Treatment to Protect Kidney Cells against Anoxia. Int J Mol Sci 2021; 23:ijms23010152. [PMID: 35008578 PMCID: PMC8745656 DOI: 10.3390/ijms23010152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/15/2021] [Accepted: 12/21/2021] [Indexed: 11/16/2022] Open
Abstract
Lesions issued from the ischemia/reperfusion (I/R) stress are a major challenge in human pathophysiology. Of human organs, the kidney is highly sensitive to I/R because of its high oxygen demand and poor regenerative capacity. Previous studies have shown that targeting the hypusination pathway of eIF5A through GC7 greatly improves ischemic tolerance and can be applied successfully to kidney transplants. The protection process correlates with a metabolic shift from oxidative phosphorylation to glycolysis. Because the protein kinase B Akt is involved in ischemic protective mechanisms and glucose metabolism, we looked for a link between the effects of GC7 and Akt in proximal kidney cells exposed to anoxia or the mitotoxic myxothiazol. We found that GC7 treatment resulted in impaired Akt phosphorylation at the Ser473 and Thr308 sites, so the effects of direct Akt inhibition as a preconditioning protocol on ischemic tolerance were investigated. We evidenced that Akt inhibitors provide huge protection for kidney cells against ischemia and myxothiazol. The pro-survival effect of Akt inhibitors, which is reversible, implied a decrease in mitochondrial ROS production but was not related to metabolic changes or an antioxidant defense increase. Therefore, the inhibition of Akt can be considered as a preconditioning treatment against ischemia.
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Affiliation(s)
- Nicolas Melis
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA;
| | - Romain Carcy
- Université Côte d’Azur, CNRS, LP2M, 06103 Nice, France; (R.C.); (I.R.); (M.C.); (C.D.); (M.T.)
- CHU Nice, Hôpital Pasteur 2, Service de Réanimation Polyvalente et Service de Réanimation des Urgences Vitales, 06103 Nice, France
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Isabelle Rubera
- Université Côte d’Azur, CNRS, LP2M, 06103 Nice, France; (R.C.); (I.R.); (M.C.); (C.D.); (M.T.)
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Marc Cougnon
- Université Côte d’Azur, CNRS, LP2M, 06103 Nice, France; (R.C.); (I.R.); (M.C.); (C.D.); (M.T.)
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Christophe Duranton
- Université Côte d’Azur, CNRS, LP2M, 06103 Nice, France; (R.C.); (I.R.); (M.C.); (C.D.); (M.T.)
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Michel Tauc
- Université Côte d’Azur, CNRS, LP2M, 06103 Nice, France; (R.C.); (I.R.); (M.C.); (C.D.); (M.T.)
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
| | - Didier F. Pisani
- Université Côte d’Azur, CNRS, LP2M, 06103 Nice, France; (R.C.); (I.R.); (M.C.); (C.D.); (M.T.)
- Laboratories of Excellence Ion Channel Science and Therapeutics, 06103 Nice, France
- Correspondence:
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7
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Schwing A, Pisani DF, Pomares C, Majoor A, Lacas-Gervais S, Jager J, Lemichez E, Marty P, Boyer L, Michel G. Identification of adipocytes as target cells for Leishmania infantum parasites. Sci Rep 2021; 11:21275. [PMID: 34711872 PMCID: PMC8553825 DOI: 10.1038/s41598-021-00443-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 03/01/2021] [Accepted: 09/29/2021] [Indexed: 11/30/2022] Open
Abstract
Leishmania infantum is the causative agent of visceral leishmaniasis transmitted by the bite of female sand flies. According to the WHO, the estimated annual incidence of leishmaniasis is one million new cases, resulting in 30,000 deaths per year. The recommended drugs for treating leishmaniasis include Amphotericin B. But over the course of the years, several cases of relapses have been documented. These relapses cast doubt on the efficiency of actual treatments and raise the question of potential persistence sites. Indeed, Leishmania has the ability to persist in humans for long periods of time and even after successful treatment. Several potential persistence sites have already been identified and named as safe targets. As adipose tissue has been proposed as a sanctuary of persistence for several pathogens, we investigated whether Leishmania infantum could be found in this tissue. We demonstrated both in cell cultures and in vivo that Leishmania infantum was able to infect adipocytes. Altogether our results suggest adipocytes as a 'safe target' for Leishmania infantum parasites.
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Affiliation(s)
- Aurélie Schwing
- Université Côte d'Azur, CHU, Inserm, C3M, Nice, France
- Université Côte d'Azur, Inserm, C3M, Nice, France
- Université Aix-Marseille, Marseille, France
| | | | - Christelle Pomares
- Université Côte d'Azur, CHU, Inserm, C3M, Nice, France
- Université Côte d'Azur, Inserm, C3M, Nice, France
| | | | | | | | - Emmanuel Lemichez
- Institut Pasteur, CNRS UMR2001, Unité des Toxines Bactériennes, 75015, Paris, France
| | - Pierre Marty
- Université Côte d'Azur, CHU, Inserm, C3M, Nice, France
- Université Côte d'Azur, Inserm, C3M, Nice, France
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8
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Napolitano T, Avolio F, Silvano S, Forcisi S, Pfeifer A, Vieira A, Navarro-Sanz S, Friano ME, Ayachi C, Garrido-Utrilla A, Atlija J, Hadzic B, Becam J, Sousa-De-Veiga A, Plaisant MD, Balaji S, Pisani DF, Mondin M, Schmitt-Kopplin P, Amri EZ, Collombat P. Gfi1 Loss Protects against Two Models of Induced Diabetes. Cells 2021; 10:cells10112805. [PMID: 34831029 PMCID: PMC8616283 DOI: 10.3390/cells10112805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 09/08/2021] [Revised: 10/07/2021] [Accepted: 10/14/2021] [Indexed: 12/29/2022] Open
Abstract
Background: Although several approaches have revealed much about individual factors that regulate pancreatic development, we have yet to fully understand their complicated interplay during pancreas morphogenesis. Gfi1 is transcription factor specifically expressed in pancreatic acinar cells, whose role in pancreas cells fate identity and specification is still elusive. Methods: In order to gain further insight into the function of this factor in the pancreas, we generated animals deficient for Gfi1 specifically in the pancreas. Gfi1 conditional knockout animals were phenotypically characterized by immunohistochemistry, RT-qPCR, and RNA scope. To assess the role of Gfi1 in the pathogenesis of diabetes, we challenged Gfi1-deficient mice with two models of induced hyperglycemia: long-term high-fat/high-sugar feeding and streptozotocin injections. Results: Interestingly, mutant mice did not show any obvious deleterious phenotype. However, in depth analyses demonstrated a significant decrease in pancreatic amylase expression, leading to a diminution in intestinal carbohydrates processing and thus glucose absorption. In fact, Gfi1-deficient mice were found resistant to diet-induced hyperglycemia, appearing normoglycemic even after long-term high-fat/high-sugar diet. Another feature observed in mutant acinar cells was the misexpression of ghrelin, a hormone previously suggested to exhibit anti-apoptotic effects on β-cells in vitro. Impressively, Gfi1 mutant mice were found to be resistant to the cytotoxic and diabetogenic effects of high-dose streptozotocin administrations, displaying a negligible loss of β-cells and an imperturbable normoglycemia. Conclusions: Together, these results demonstrate that Gfi1 could turn to be extremely valuable for the development of new therapies and could thus open new research avenues in the context of diabetes research.
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Affiliation(s)
- Tiziana Napolitano
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Fabio Avolio
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense, Denmark;
| | - Serena Silvano
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Sara Forcisi
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environment Health, 85764 Neuherberg, Germany; (S.F.); (P.S.-K.)
- German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
| | - Anja Pfeifer
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Andhira Vieira
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | | | - Marika Elsa Friano
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Chaïma Ayachi
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Anna Garrido-Utrilla
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | | | - Biljana Hadzic
- Pediatric Oncology & Hematology Department, Centre Hospitalier Universitaire de Nice, Hopital Archet 2, 06202 Nice, France;
| | - Jérôme Becam
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Anette Sousa-De-Veiga
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Magali Dodille Plaisant
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | | | - Didier F. Pisani
- Medicine Faculty, Université Côte d’Azur, CNRS, LP2M, 06003 Nice, France;
| | - Magali Mondin
- Pôle Imagerie Photonique, Bordeaux Imaging Center, Université de Bordeaux, UMS 3420 CNRS-US4 Inserm, 33076 Bordeaux, France;
| | - Philippe Schmitt-Kopplin
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environment Health, 85764 Neuherberg, Germany; (S.F.); (P.S.-K.)
- German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
| | - Ez-Zoubir Amri
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Patrick Collombat
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
- Correspondence:
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9
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Munro P, Rekima S, Loubat A, Duranton C, Pisani DF, Boyer L. Impact of thermogenesis induced by chronic β3-adrenergic receptor agonist treatment on inflammatory and infectious response during bacteremia in mice. PLoS One 2021; 16:e0256768. [PMID: 34437647 PMCID: PMC8389438 DOI: 10.1371/journal.pone.0256768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/19/2021] [Accepted: 08/15/2021] [Indexed: 11/19/2022] Open
Abstract
White adipocytes store energy differently than brown and brite adipocytes which dissipate energy under the form of heat. Studies have shown that adipocytes are able to respond to bacteria thanks to the presence of Toll-like receptors at their surface. Despite this, little is known about the involvement of each class of adipocytes in the infectious response. We treated mice for one week with a β3-adrenergic receptor agonist to induce activation of brown adipose tissue and brite adipocytes within white adipose tissue. Mice were then injected intraperitoneally with E. coli to generate acute infection. The metabolic, infectious and inflammatory parameters of the mice were analysed during 48 hours after infection. Our results shown that in response to bacteria, thermogenic activity promoted a discrete and local anti-inflammatory environment in white adipose tissue characterized by the increase of the IL-1RA secretion. More generally, activation of brown and brite adipocytes did not modify the host response to infection including no additive effect with fever and an equivalent bacteria clearance and inflammatory response. In conclusion, these results suggest an IL-1RA-mediated immunomodulatory activity of thermogenic adipocytes in response to acute bacterial infection and open a way to characterize their effect along more chronic infection as septicaemia.
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Affiliation(s)
| | - Samah Rekima
- Université Côte d’Azur, CNRS, Inserm, iBV, Nice, France
| | - Agnès Loubat
- Université Côte d’Azur, CNRS, Inserm, iBV, Nice, France
| | | | - Didier F. Pisani
- Université Côte d’Azur, CNRS, LP2M, Nice, France
- * E-mail: (DFP); (LB)
| | - Laurent Boyer
- Université Côte d’Azur, Inserm, C3M, Nice, France
- * E-mail: (DFP); (LB)
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10
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Carcy R, Cougnon M, Poet M, Durandy M, Sicard A, Counillon L, Blondeau N, Hauet T, Tauc M, F Pisani D. Targeting oxidative stress, a crucial challenge in renal transplantation outcome. Free Radic Biol Med 2021; 169:258-270. [PMID: 33892115 DOI: 10.1016/j.freeradbiomed.2021.04.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 02/18/2021] [Revised: 03/31/2021] [Accepted: 04/15/2021] [Indexed: 02/07/2023]
Abstract
Disorders characterized by ischemia/reperfusion (I/R) are the most common causes of debilitating diseases and death in stroke, cardiovascular ischemia, acute kidney injury or organ transplantation. In the latter example the I/R step defines both the amplitude of the damages to the graft and the functional recovery outcome. During transplantation the kidney is subjected to blood flow arrest followed by a sudden increase in oxygen supply at the time of reperfusion. This essential clinical protocol causes massive oxidative stress which is at the basis of cell death and tissue damage. The involvement of both reactive oxygen species (ROS) and nitric oxides (NO) has been shown to be a major cause of these cellular damages. In fact, in non-physiological situations, these species escape endogenous antioxidant control and dangerously accumulate in cells. In recent years, the objective has been to find clinical and pharmacological treatments to reduce or prevent the appearance of oxidative stress in ischemic pathologies. This is very relevant because, due to the increasing success of organ transplantation, clinicians are required to use limit organs, the preservation of which against oxidative stress is crucial for a better outcome. This review highlights the key actors in oxidative stress which could represent new pharmacological targets.
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Affiliation(s)
- Romain Carcy
- Université Côte d'Azur, CNRS, LP2M, Nice, France; CHU Nice, Hôpital Pasteur 2, Service de Réanimation Polyvalente et Service de Réanimation des Urgences Vitales, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Marc Cougnon
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Mallorie Poet
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Manon Durandy
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Antoine Sicard
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France; CHU Nice, Hôpital Pasteur 2, Service de Néphrologie-Dialyse-Transplantation, Nice, France; Clinical Research Unit of Université Côte d'Azur (UMR2CA), France
| | - Laurent Counillon
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | | | - Thierry Hauet
- Université de Poitiers, INSERM, IRTOMIT, CHU de Poitiers, La Milétrie, Poitiers, France
| | - Michel Tauc
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Didier F Pisani
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France.
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11
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Raad G, Serra F, Martin L, Derieppe MA, Gilleron J, Costa VL, Pisani DF, Amri EZ, Trabucchi M, Grandjean V. Paternal multigenerational exposure to an obesogenic diet drives epigenetic predisposition to metabolic diseases in mice. eLife 2021; 10:61736. [PMID: 33783350 PMCID: PMC8051948 DOI: 10.7554/elife.61736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 08/03/2020] [Accepted: 03/28/2021] [Indexed: 12/25/2022] Open
Abstract
Obesity is a growing societal scourge. Recent studies have uncovered that paternal excessive weight induced by an unbalanced diet affects the metabolic health of offspring. These reports mainly employed single-generation male exposure. However, the consequences of multigenerational unbalanced diet feeding on the metabolic health of progeny remain largely unknown. Here, we show that maintaining paternal Western diet feeding for five consecutive generations in mice induces an enhancement in fat mass and related metabolic diseases over generations. Strikingly, chow-diet-fed progenies from these multigenerational Western-diet-fed males develop a 'healthy' overweight phenotype characterized by normal glucose metabolism and without fatty liver that persists for four subsequent generations. Mechanistically, sperm RNA microinjection experiments into zygotes suggest that sperm RNAs are sufficient for establishment but not for long-term maintenance of epigenetic inheritance of metabolic pathologies. Progressive and permanent metabolic deregulation induced by successive paternal Western-diet-fed generations may contribute to the worldwide epidemic of metabolic diseases.
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Affiliation(s)
- Georges Raad
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France.,Université Côte d'Azur, CNRS, Inserm, iBV, Nice, France
| | - Fabrizio Serra
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France
| | - Luc Martin
- Université Côte d'Azur, CNRS, Inserm, iBV, Nice, France
| | | | - Jérôme Gilleron
- Université Côte d'Azur, Inserm, C3M, Team Cellular and Molecular Pathophysiology of Obesity and Diabetes (7), Nice, France
| | - Vera L Costa
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France
| | | | | | - Michele Trabucchi
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France
| | - Valerie Grandjean
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France
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12
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Cougnon M, Carcy R, Melis N, Rubera I, Duranton C, Dumas K, Tanti JF, Pons C, Soubeiran N, Shkreli M, Hauet T, Pellerin L, Giraud S, Blondeau N, Tauc M, Pisani DF. Inhibition of eIF5A hypusination reprogrammes metabolism and glucose handling in mouse kidney. Cell Death Dis 2021; 12:283. [PMID: 33731685 PMCID: PMC7969969 DOI: 10.1038/s41419-021-03577-z] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 02/24/2021] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
Inhibition of the eukaryotic initiation factor 5A activation by the spermidine analogue GC7 has been shown to protect proximal cells and whole kidneys against an acute episode of ischaemia. The highlighted mechanism involves a metabolic switch from oxidative phosphorylation toward glycolysis allowing cells to be transiently independent of oxygen supply. Here we show that GC7 decreases protein expression of the renal GLUT1 glucose transporter leading to a decrease in transcellular glucose flux. At the same time, GC7 modifies the native energy source of the proximal cells from glutamine toward glucose use. Thus, GC7 acutely and reversibly reprogrammes function and metabolism of kidney cells to make glucose its single substrate, and thus allowing cells to be oxygen independent through anaerobic glycolysis. The physiological consequences are an increase in the renal excretion of glucose and lactate reflecting a decrease in glucose reabsorption and an increased glycolysis. Such a reversible reprogramming of glucose handling and oxygen dependence of kidney cells by GC7 represents a pharmacological opportunity in ischaemic as well as hyperglycaemia-associated pathologies from renal origin.
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Affiliation(s)
- Marc Cougnon
- Université Côte d'Azur, CNRS, LP2M, Nice, France
| | - Romain Carcy
- CHU Nice, Hôpital Pasteur 2, Service de Réanimation Polyvalente et Service de Réanimation des Urgences Vitales, Nice, France
| | - Nicolas Melis
- Université Côte d'Azur, CNRS, LP2M, Nice, France
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | | | | | - Karine Dumas
- Université Côte d'Azur, INSERM, C3M, Nice, France
| | | | - Catherine Pons
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | | | - Marina Shkreli
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | - Thierry Hauet
- Université de Poitiers, INSERM, IRTOMIT, CHU de Poitiers, La Milétrie, Poitiers, France
| | - Luc Pellerin
- Université de Poitiers, INSERM, IRTOMIT, CHU de Poitiers, La Milétrie, Poitiers, France
| | | | | | - Michel Tauc
- Université Côte d'Azur, CNRS, LP2M, Nice, France.
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13
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Efthymiou G, Radwanska A, Grapa AI, Beghelli-de la Forest Divonne S, Grall D, Schaub S, Hattab M, Pisano S, Poet M, Pisani DF, Counillon L, Descombes X, Blanc-Féraud L, Van Obberghen-Schilling E. Fibronectin Extra Domains tune cellular responses and confer topographically distinct features to fibril networks. J Cell Sci 2021; 134:jcs.252957. [PMID: 33526715 DOI: 10.1242/jcs.252957] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 01/15/2021] [Indexed: 12/25/2022] Open
Abstract
Cellular fibronectin (FN; also known as FN1) variants harboring one or two alternatively spliced so-called extra domains (EDB and EDA) play a central bioregulatory role during development, repair processes and fibrosis. Yet, how the extra domains impact fibrillar assembly and function of the molecule remains unclear. Leveraging a unique biological toolset and image analysis pipeline for direct comparison of the variants, we demonstrate that the presence of one or both extra domains impacts FN assembly, function and physical properties of the matrix. When presented to FN-null fibroblasts, extra domain-containing variants differentially regulate pH homeostasis, survival and TGF-β signaling by tuning the magnitude of cellular responses, rather than triggering independent molecular switches. Numerical analyses of fiber topologies highlight significant differences in variant-specific structural features and provide a first step for the development of a generative model of FN networks to unravel assembly mechanisms and investigate the physical and functional versatility of extracellular matrix landscapes.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
| | - Agata Radwanska
- Université Côte d'Azur, CNRS, INSERM, iBV, Nice 06108, France
| | - Anca-Ioana Grapa
- Université Côte d'Azur, CNRS, INSERM, iBV, Nice 06108, France.,Université Côte d'Azur, Inria, CNRS, i3S, Nice 06902, France
| | | | - Dominique Grall
- Université Côte d'Azur, CNRS, INSERM, iBV, Nice 06108, France
| | | | - Maurice Hattab
- Université Côte d'Azur, CNRS, INSERM, iBV, Nice 06108, France
| | - Sabrina Pisano
- Université Côte d'Azur, Inserm, CNRS, IRCAN, Nice 06107, France
| | - Mallorie Poet
- Université Côte d'Azur, Inserm, CNRS, IRCAN, Nice 06107, France
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14
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Munro P, Dufies O, Rekima S, Loubat A, Duranton C, Boyer L, Pisani DF. Modulation of the inflammatory response to LPS by the recruitment and activation of brown and brite adipocytes in mice. Am J Physiol Endocrinol Metab 2020; 319:E912-E922. [PMID: 32954821 DOI: 10.1152/ajpendo.00279.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 12/13/2022]
Abstract
Numerous studies have shown that the recruitment and activation of thermogenic adipocytes, which are brown and beige/brite, reduce the mass of adipose tissue and normalize abnormal glycemia and lipidemia. However, the impact of these adipocytes on the inflammatory state of adipose tissue is still not well understood, especially in response to endotoxemia, which is a major aspect of obesity and metabolic diseases. First, we analyzed the phenotype and metabolic function of white and brite primary adipocytes in response to lipopolysaccharide (LPS) treatment in vitro. Then, 8-wk-old male BALB/c mice were treated for 1 wk with a β3-adrenergic receptor agonist (CL316,243, 1 mg/kg/day) to induce recruitment and activation of brown and brite adipocytes and were subsequently injected with LPS (Escherichia coli lipopolysaccharide, 100 μg/mouse ip) to generate acute endotoxemia. The metabolic and inflammatory parameters of the mice were analyzed 6 h later. Our results showed that in response to LPS, thermogenic activity promoted a local anti-inflammatory environment with high secretion of IL-1 receptor antagonist (IL-1RA) without affecting other anti- or proinflammatory cytokines. Interestingly, activation of brite adipocytes reduced the LPS-induced secretion of leptin. However, thermogenic activity and adipocyte function were not altered by LPS treatment in vitro or by acute endotoxemia in vivo. In conclusion, these results suggest an IL-1RA-mediated immunomodulatory activity of thermogenic adipocytes specifically in response to endotoxemia. This encourages potential therapy involving brown and brite adipocytes for the treatment of obesity and associated metabolic diseases.NEW & NOTEWORTHY Recruitment and activation of brown and brite adipocytes in the adipose tissue of mice lead to a local low-grade anti-inflammatory phenotype in response to acute endotoxemia without alteration of adipocyte phenotype and function.
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Affiliation(s)
| | | | - Samah Rekima
- Université Côte d'Azur, CNRS, Inserm, IBV, Nice, France
| | - Agnès Loubat
- Université Côte d'Azur, CNRS, Inserm, IBV, Nice, France
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15
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Roux CH, Pisani DF, Gillet P, Fontas E, Yahia HB, Djedaini M, Ambrosetti D, Michiels JF, Panaia-Ferrari P, Breuil V, Pinzano A, Amri EZ. Oxytocin Controls Chondrogenesis and Correlates with Osteoarthritis. Int J Mol Sci 2020; 21:ijms21113966. [PMID: 32486506 PMCID: PMC7312425 DOI: 10.3390/ijms21113966] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 12/12/2022] Open
Abstract
This study investigated the relationship of oxytocin (OT) to chondrogenesis and osteoarthritis (OA). Human bone marrow and multipotent adipose-derived stem cells were cultured in vitro in the absence or presence of OT and assayed for mRNA transcript expression along with histological and immunohistochemical analyses. To study the effects of OT in OA in vivo, a rat model and a human cohort of 63 men and 19 women with hand OA and healthy controls, respectively, were used. The baseline circulating OT, interleukin-6, leptin, and oestradiol levels were measured, and hand X-ray examinations were performed for each subject. OT induced increased aggrecan, collagen (Col) X, and cartilage oligomeric matrix protein mRNA transcript levels in vitro, and the immunolabelling experiments revealed a normalization of Sox9 and Col II protein expression levels. No histological differences in lesion severity were observed between rat OA groups. In the clinical study, a multivariate analysis adjusted for age, body mass index, and leptin levels revealed a significant association between OA and lower levels of OT (odds ratio = 0.77; p = 0.012). Serum OT levels are reduced in patients with hand OA, and OT showed a stimulatory effect on chondrogenesis. Thus, OT may contribute to the pathophysiology of OA.
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Affiliation(s)
- Christian H. Roux
- Université Côte d’Azur, French National Centre for Scientific Research (CNRS), Inserm, iBV, 06107 Nice, France; (H.B.Y.); (M.D.)
- Department of Rheumatology, Nice University Hospital, Pasteur Hospital, 06003 Nice, France;
- Correspondence: (C.H.R.); (E.-Z.A.); Tel.: +33-492-03-54-99 (C.H.R.); +33-493-37-7082 (E.-Z.A.)
| | | | - Pierre Gillet
- UMR 7365 French National Centre for Scientific Research (CNRS)–Université de Lorraine, ‘Ingénierie Moléculaire et Physiopathologie Articulaire’ (IMoPA), F54505 Vandoeuvre-lès-Nancy, France; (P.G.); (A.P.)
| | - Eric Fontas
- Department of Clinical Research, Nice University Hospital, Cimiez Hospital, F-06003 Nice, France;
| | - Hédi Ben Yahia
- Université Côte d’Azur, French National Centre for Scientific Research (CNRS), Inserm, iBV, 06107 Nice, France; (H.B.Y.); (M.D.)
| | - Mansour Djedaini
- Université Côte d’Azur, French National Centre for Scientific Research (CNRS), Inserm, iBV, 06107 Nice, France; (H.B.Y.); (M.D.)
| | - Damien Ambrosetti
- Université Côte d’Azur, UFR Médecine, F-06107 Nice, France; (D.A.); (J.-F.M.)
- Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, F-06003 Nice, France
| | - Jean-François Michiels
- Université Côte d’Azur, UFR Médecine, F-06107 Nice, France; (D.A.); (J.-F.M.)
- Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, F-06003 Nice, France
| | | | - Véronique Breuil
- Department of Rheumatology, Nice University Hospital, Pasteur Hospital, 06003 Nice, France;
| | - Astrid Pinzano
- UMR 7365 French National Centre for Scientific Research (CNRS)–Université de Lorraine, ‘Ingénierie Moléculaire et Physiopathologie Articulaire’ (IMoPA), F54505 Vandoeuvre-lès-Nancy, France; (P.G.); (A.P.)
| | - Ez-Zoubir Amri
- Université Côte d’Azur, French National Centre for Scientific Research (CNRS), Inserm, iBV, 06107 Nice, France; (H.B.Y.); (M.D.)
- Correspondence: (C.H.R.); (E.-Z.A.); Tel.: +33-492-03-54-99 (C.H.R.); +33-493-37-7082 (E.-Z.A.)
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16
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Nicolas S, Rochet N, Gautier N, Chabry J, Pisani DF. The adiponectin receptor agonist AdipoRon normalizes glucose metabolism and prevents obesity but not growth retardation induced by glucocorticoids in young mice. Metabolism 2020; 103:154027. [PMID: 31778708 DOI: 10.1016/j.metabol.2019.154027] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 08/09/2019] [Revised: 11/08/2019] [Accepted: 11/22/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Glucocorticoids (GCs) are highly effective anti-inflammatory and immunosuppressive drugs. However, prolonged GC therapy may cause numerous adverse effects leading to diabetes and obesity, as well as bone disorders such as osteoporosis in adults and growth retardation in children and adolescents. Prevention and care of the GC-induced adverse effects remain challenging. We have previously demonstrated the efficacy of a treatment with a non-peptidic agonist of adiponectin receptors, AdipoRon, to reverse behaviour disorders and fat mass gain induced by long-term GC treatment. In this work, we have established a relevant model of GC-induced growth and metabolic disorders and determined that AdipoRon is a potential therapeutic tool to reverse these metabolic disturbances. METHODS 5-Week-old mice were treated continuously with or without corticosterone (35 mg/L) in drinking water for seven consecutive weeks. Taking advantage of this mouse model displaying various growth and metabolic disorders, we assayed whether AdipoRon (daily intraperitoneal injection of 1 mg/kg/day for the last 20 days) might prevent the GC-induced adverse effects. The control group was treated with vehicle only. Nutritional behaviors and metabolic parameters were followed-up throughout the treatment. Serum insulin and leptin levels were measured by ELISA. Computed tomography and histological analysis of adipose tissue were assessed at the end of the experimental procedure. RESULTS We found that GC treatment in young mice resulted in continuously increased body weight gain associated with a food intake increase. Compared to vehicle-, GC-treated mice displayed early major hyperleptinemia (up to 6-fold more) and hyperinsulinemia (up to 20-fold more) maintained throughout the treatment. At the end of the experimental procedure, GC-treated mice displayed bone growth retardation (e.g. femur length 15.1 versus 14.0 mm, P < 0.01), higher abdominal adipose tissue volume (4.1 versus 2.3, P < 0.01) and altered glucose metabolism compared to control mice. Interestingly, AdipoRon prevented GC-induced effects on energy metabolism such as abdominal adiposity, insulinemia and leptinemia. However, AdipoRon failed to counteract bone growth retardation. CONCLUSION We characterized the very early pathological steps induced by long-term GC in young mice in a relevant model, including growth retardation, fat mass gain and glucose homeostasis dysregulation. The adiponectin system stimulation enabled normalization of the adipose tissue and metabolic features of GC-treated mice. Adiponectin receptor agonists such as AdipoRon might constitute a novel way to counteract some GC-induced adverse effects.
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Affiliation(s)
- Sarah Nicolas
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire UMR 7275, 660 route des lucioles, Sophia Antipolis, 06560 Valbonne, France
| | - Nathalie Rochet
- Université Côte d'Azur, CNRS, Inserm, Institut de Biologie Valrose UMR 7277, 28 avenue de Valombrose, 06107 Nice, France
| | - Nadine Gautier
- Université Côte d'Azur, CNRS, Inserm, Institut de Biologie Valrose UMR 7277, 28 avenue de Valombrose, 06107 Nice, France
| | - Joëlle Chabry
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire UMR 7275, 660 route des lucioles, Sophia Antipolis, 06560 Valbonne, France.
| | - Didier F Pisani
- Université Côte d'Azur, CNRS, Laboratoire de PhysioMédecine Moléculaire UMR7370, 28 avenue de Valombrose, 06107 Nice, France.
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17
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Dumortier O, Fabris G, Pisani DF, Casamento V, Gautier N, Hinault C, Lebrun P, Duranton C, Tauc M, Dalle S, Kerr-Conte J, Pattou F, Prentki M, Van Obberghen E. microRNA-375 regulates glucose metabolism-related signaling for insulin secretion. J Endocrinol 2020; 244:189-200. [PMID: 31697642 DOI: 10.1530/joe-19-0180] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 10/08/2019] [Accepted: 10/14/2019] [Indexed: 01/13/2023]
Abstract
Enhanced beta cell glycolytic and oxidative metabolism are necessary for glucose-induced insulin secretion. While several microRNAs modulate beta cell homeostasis, miR-375 stands out as it is highly expressed in beta cells where it regulates beta cell function, proliferation and differentiation. As glucose metabolism is central in all aspects of beta cell functioning, we investigated the role of miR-375 in this process using human and rat islets; the latter being an appropriate model for in-depth investigation. We used forced expression and repression of mR-375 in rat and human primary islet cells followed by analysis of insulin secretion and metabolism. Additionally, miR-375 expression and glucose-induced insulin secretion were compared in islets from rats at different developmental ages. We found that overexpressing of miR-375 in rat and human islet cells blunted insulin secretion in response to glucose but not to α-ketoisocaproate or KCl. Further, miR-375 reduced O2 consumption related to glycolysis and pyruvate metabolism, but not in response to α-ketoisocaproate. Concomitantly, lactate production was augmented suggesting that glucose-derived pyruvate is shifted away from mitochondria. Forced miR-375 expression in rat or human islets increased mRNA levels of pyruvate dehydrogenase kinase-4, but decreased those of pyruvate carboxylase and malate dehydrogenase1. Finally, reduced miR-375 expression was associated with maturation of fetal rat beta cells and acquisition of glucose-induced insulin secretion function. Altogether our findings identify miR-375 as an efficacious regulator of beta cell glucose metabolism and of insulin secretion, and could be determinant to functional beta cell developmental maturation.
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Affiliation(s)
| | - Gaia Fabris
- Université Côte d'Azur, Inserm, CNRS, IRCAN, Nice, France
- Université Côte d'Azur, CNRS, LP2M, Nice, France
| | | | | | - Nadine Gautier
- Université Côte d'Azur, Inserm, CNRS, IRCAN, Nice, France
| | | | | | | | - Michel Tauc
- Université Côte d'Azur, CNRS, LP2M, Nice, France
| | - Stéphane Dalle
- INSERM U1191, Institute of Functional Genomics (IGF), CNRS UMR5203, Montpellier University, Montpellier, France
| | - Julie Kerr-Conte
- Translational Research for Diabetes, University of Lille, INSERM, CHRU Lille, Lille, France
| | - François Pattou
- Translational Research for Diabetes, University of Lille, INSERM, CHRU Lille, Lille, France
| | - Marc Prentki
- CRCHUM and Montreal Diabetes Research Center, Departments of Nutrition and Biochemistry and Molecular Medicine, University of Montreal, Montreal, Canada
| | - Emmanuel Van Obberghen
- Université Côte d'Azur, CNRS, LP2M, Nice, France
- Université Côte d'Azur, CHU, Inserm, CNRS, IRCAN, Nice, France
- Université Côte d'Azur, CHU, CNRS, LP2M, Nice, France
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18
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Fabris G, Dumortier O, Pisani DF, Gautier N, Van Obberghen E. Amino acid-induced regulation of hepatocyte growth: possible role of Drosha. Cell Death Dis 2019; 10:566. [PMID: 31332188 PMCID: PMC6646398 DOI: 10.1038/s41419-019-1779-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 02/12/2019] [Revised: 05/23/2019] [Accepted: 06/21/2019] [Indexed: 12/14/2022]
Abstract
In an adult healthy liver, hepatocytes are in a quiescent stage unless a physical injury, such as ablation, or a toxic attack occur. Indeed, to maintain their crucial organismal homeostatic role, the damaged or remaining hepatocytes will start proliferating to restore their functional mass. One of the limiting conditions for cell proliferation is amino-acid availability, necessary both for the synthesis of proteins important for cell growth and division, and for the activation of the mTOR pathway, known for its considerable role in the regulation of cell proliferation. The overarching aim of our present work was to investigate the role of amino acids in the regulation of the switch between quiescence and growth of adult hepatocytes. To do so we used non-confluent primary adult rat hepatocytes as a model of partially ablated liver. We discovered that the absence of amino acids induces in primary rat hepatocytes the entrance in a quiescence state together with an increase in Drosha protein, which does not involve the mTOR pathway. Conversely, Drosha knockdown allows the hepatocytes, quiescent after amino-acid deprivation, to proliferate again. Further, hepatocyte proliferation appears to be independent of miRNAs, the canonical downstream partners of Drosha. Taken together, our observations reveal an intriguing non-canonical action of Drosha in the control of growth regulation of adult hepatocytes responding to a nutritional strain, and they may help to design novel preventive and/or therapeutic approaches for hepatic failure.
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Affiliation(s)
- Gaia Fabris
- Université Côte d'Azur, Inserm, CNRS, IRCAN, Nice, France.,Université Côte d'Azur, CNRS, LP2M, Nice, France
| | | | | | - Nadine Gautier
- Université Côte d'Azur, Inserm, CNRS, IRCAN, Nice, France.,Université Côte d'Azur, CNRS, Inserm, iBV, Nice, France
| | - Emmanuel Van Obberghen
- Université Côte d'Azur, CHU, Inserm, CNRS, IRCAN, Nice, France. .,Université Côte d'Azur, CHU, CNRS, LP2M, Nice, France.
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19
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Colson C, Ghandour RA, Dufies O, Rekima S, Loubat A, Munro P, Boyer L, Pisani DF. Diet Supplementation in ω3 Polyunsaturated Fatty Acid Favors an Anti-Inflammatory Basal Environment in Mouse Adipose Tissue. Nutrients 2019; 11:nu11020438. [PMID: 30791540 PMCID: PMC6412622 DOI: 10.3390/nu11020438] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/12/2019] [Accepted: 02/15/2019] [Indexed: 12/17/2022] Open
Abstract
Oxylipins are metabolized from dietary ω3 and ω6 polyunsaturated fatty acids and are involved in an inflammatory response. Adipose tissue inflammatory background is a key factor of metabolic disorders and it is accepted that dietary fatty acids, in terms of quality and quantity, modulate oxylipin synthesis in this tissue. Moreover, it has been reported that diet supplementation in ω3 polyunsaturated fatty acids resolves some inflammatory situations. Thus, it is crucial to assess the influence of dietary polyunsaturated fatty acids on oxylipin synthesis and their impact on adipose tissue inflammation. To this end, mice fed an ω6- or ω3-enriched standard diet (ω6/ω3 ratio of 30 and 3.75, respectively) were analyzed for inflammatory phenotype and adipose tissue oxylipin content. Diet enrichment with an ω3 polyunsaturated fatty acid induced an increase in the oxylipins derived from ω6 linoleic acid, ω3 eicosapentaenoic, and ω3 docosahexaenoic acids in brown and white adipose tissues. Among these, the level of pro-resolving mediator intermediates, as well as anti-inflammatory metabolites, were augmented. Concomitantly, expressions of M2 macrophage markers were increased without affecting inflammatory cytokine contents. In vitro, these metabolites did not activate macrophages but participated in macrophage polarization by inflammatory stimuli. In conclusion, we demonstrated that an ω3-enriched diet, in non-obesogenic non-inflammatory conditions, induced synthesis of oxylipins which were involved in an anti-inflammatory response as well as enhancement of the M2 macrophage molecular signature, without affecting inflammatory cytokine secretion.
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Affiliation(s)
- Cecilia Colson
- Université Côte d'Azur, CNRS, Inserm, iBV, 06107 Nice, France.
| | | | - Océane Dufies
- Université Côte d'Azur, Inserm, C3M, 06107 Nice, France.
| | - Samah Rekima
- Université Côte d'Azur, CNRS, Inserm, iBV, 06107 Nice, France.
| | - Agnès Loubat
- Université Côte d'Azur, CNRS, Inserm, iBV, 06107 Nice, France.
| | - Patrick Munro
- Université Côte d'Azur, Inserm, C3M, 06107 Nice, France.
| | - Laurent Boyer
- Université Côte d'Azur, Inserm, C3M, 06107 Nice, France.
| | - Didier F Pisani
- Université Côte d'Azur, CNRS, Inserm, iBV, 06107 Nice, France.
- Didier Pisani, Laboratoire de PhysioMédecine Moléculaire-LP2M, Univ. Nice Sophia Antipolis, 28 Avenue de Valombrose, 06107 Nice CEDEX 2, France.
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20
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Leboucher A, Pisani DF, Martinez-Gili L, Chilloux J, Bermudez-Martin P, Van Dijck A, Ganief T, Macek B, Becker JAJ, Le Merrer J, Kooy RF, Amri EZ, Khandjian EW, Dumas ME, Davidovic L. The translational regulator FMRP controls lipid and glucose metabolism in mice and humans. Mol Metab 2019; 21:22-35. [PMID: 30686771 PMCID: PMC6407369 DOI: 10.1016/j.molmet.2019.01.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 01/02/2019] [Accepted: 01/08/2019] [Indexed: 01/09/2023] Open
Abstract
Objectives The Fragile X Mental Retardation Protein (FMRP) is a widely expressed RNA-binding protein involved in translation regulation. Since the absence of FMRP leads to Fragile X Syndrome (FXS) and autism, FMRP has been extensively studied in brain. The functions of FMRP in peripheral organs and on metabolic homeostasis remain elusive; therefore, we sought to investigate the systemic consequences of its absence. Methods Using metabolomics, in vivo metabolic phenotyping of the Fmr1-KO FXS mouse model and in vitro approaches, we show that the absence of FMRP induced a metabolic shift towards enhanced glucose tolerance and insulin sensitivity, reduced adiposity, and increased β-adrenergic-driven lipolysis and lipid utilization. Results Combining proteomics and cellular assays, we highlight that FMRP loss increased hepatic protein synthesis and impacted pathways notably linked to lipid metabolism. Mapping metabolomic and proteomic phenotypes onto a signaling and metabolic network, we predicted that the coordinated metabolic response to FMRP loss was mediated by dysregulation in the abundances of specific hepatic proteins. We experimentally validated these predictions, demonstrating that the translational regulator FMRP associates with a subset of mRNAs involved in lipid metabolism. Finally, we highlight that FXS patients mirror metabolic variations observed in Fmr1-KO mice with reduced circulating glucose and insulin and increased free fatty acids. Conclusions Loss of FMRP results in a widespread coordinated systemic response that notably involves upregulation of protein translation in the liver, increased utilization of lipids, and significant changes in metabolic homeostasis. Our study unravels metabolic phenotypes in FXS and further supports the importance of translational regulation in the homeostatic control of systemic metabolism. Loss of the translational regulator FMRP impacts glucose and lipid homeostasis in mouse and human. FMR1-deficiency modifies blood metabolic markers. Loss of FMRP enhances the insulin response and lipolysis. Loss of FMRP exaggerates hepatic protein synthesis. FMRP controls the translation of key hepatic proteins involved in lipid metabolism.
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Affiliation(s)
- Antoine Leboucher
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Didier F Pisani
- Université Côte d'Azur, CNRS, Inserm, Institut de Biologie Valrose, Nice, France
| | - Laura Martinez-Gili
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
| | - Julien Chilloux
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
| | - Patricia Bermudez-Martin
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Anke Van Dijck
- Department of Medical Genetics, University and University Hospital of Antwerp, Prins Boudewijnlaan 43/6, 2650 Edegem, Belgium
| | | | | | - Jérôme A J Becker
- Physiologie de la Reproduction et des Comportements, INRA UMR-0085, CNRS UMR-7247, Inserm, Université François Rabelais, IFCE, 37380, Nouzilly, France
| | - Julie Le Merrer
- Physiologie de la Reproduction et des Comportements, INRA UMR-0085, CNRS UMR-7247, Inserm, Université François Rabelais, IFCE, 37380, Nouzilly, France
| | - R Frank Kooy
- Department of Medical Genetics, University and University Hospital of Antwerp, Prins Boudewijnlaan 43/6, 2650 Edegem, Belgium
| | - Ez-Zoubir Amri
- Université Côte d'Azur, CNRS, Inserm, Institut de Biologie Valrose, Nice, France
| | - Edouard W Khandjian
- Centre de Recherche CERVO, Institut en Santé Mentale de Québec, PQ, Canada; Département de Psychiatrie et des Neurosciences, Faculté de Médecine, Université Laval, Québec, PQ, Canada
| | - Marc-Emmanuel Dumas
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
| | - Laetitia Davidovic
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France.
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21
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Leboucher A, Bermudez-Martin P, Mouska X, Amri EZ, Pisani DF, Davidovic L. Fmr1-Deficiency Impacts Body Composition, Skeleton, and Bone Microstructure in a Mouse Model of Fragile X Syndrome. Front Endocrinol (Lausanne) 2019; 10:678. [PMID: 31632352 PMCID: PMC6783488 DOI: 10.3389/fendo.2019.00678] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 05/27/2019] [Accepted: 09/18/2019] [Indexed: 11/13/2022] Open
Abstract
Fragile X syndrome (FXS) is a neurodevelopmental disorder associated with intellectual disability, hyperactivity, and autism. FXS is due to the silencing of the X-linked FMR1 gene. Murine models of FXS, knock-out (KO) for the murine homolog Fmr1, have been generated, exhibiting CNS-related behavioral, and neuronal anomalies reminiscent of the human phenotypes. As a reflection of the almost ubiquitous expression of the FMR1 gene, FXS is also accompanied by physical abnormalities. This suggests that the FMR1-deficiency could impact skeletal ontogenesis. In the present study, we highlight that Fmr1-KO mice display changes in body composition with an increase in body weight, likely due to both increase of skeleton length and muscular mass along with reduced visceral adiposity. We also show that, while Fmr1-deficiency has no overt impact on cortical bone mineral density (BMD), cortical thickness was increased, and cortical eccentricity was decreased in the femurs from Fmr1-KO mice as compared to controls. Also, trabecular pore volume was reduced and trabecular thickness distribution was shifted toward higher ranges in Fmr1-KO femurs. Finally, we show that Fmr1-KO mice display increased physical activity. Although the precise molecular signaling mechanism that produces these skeletal and bone microstructure changes remains to be determined, our study warrants further investigation on the impact of FMR1-deficiency on whole-body composition, as well as skeletal and bone architecture.
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Affiliation(s)
| | | | - Xavier Mouska
- Université Côte d'Azur, CNRS, IPMC, Valbonne, France
| | | | | | - Laetitia Davidovic
- Université Côte d'Azur, CNRS, IPMC, Valbonne, France
- *Correspondence: Laetitia Davidovic
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22
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Babaei R, Schuster M, Meln I, Lerch S, Ghandour RA, Pisani DF, Bayindir-Buchhalter I, Marx J, Wu S, Schoiswohl G, Billeter AT, Krunic D, Mauer J, Lee YH, Granneman JG, Fischer L, Müller-Stich BP, Amri EZ, Kershaw EE, Heikenwälder M, Herzig S, Vegiopoulos A. Jak-TGFβ cross-talk links transient adipose tissue inflammation to beige adipogenesis. Sci Signal 2018; 11:11/527/eaai7838. [PMID: 29692363 DOI: 10.1126/scisignal.aai7838] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The transient activation of inflammatory networks is required for adipose tissue remodeling including the "browning" of white fat in response to stimuli such as β3-adrenergic receptor activation. In this process, white adipose tissue acquires thermogenic characteristics through the recruitment of so-called beige adipocytes. We investigated the downstream signaling pathways impinging on adipocyte progenitors that promote de novo formation of adipocytes. We showed that the Jak family of kinases controlled TGFβ signaling in the adipose tissue microenvironment through Stat3 and thereby adipogenic commitment, a function that was required for beige adipocyte differentiation of murine and human progenitors. Jak/Stat3 inhibited TGFβ signaling to the transcription factors Srf and Smad3 by repressing local Tgfb3 and Tgfb1 expression before the core transcriptional adipogenic cascade was activated. This pathway cross-talk was triggered in stromal cells by ATGL-dependent adipocyte lipolysis and a transient wave of IL-6 family cytokines at the onset of adipose tissue remodeling induced by β3-adrenergic receptor stimulation. Our results provide insight into the activation of adipocyte progenitors and are relevant for the therapeutic targeting of adipose tissue inflammatory pathways.
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Affiliation(s)
- Rohollah Babaei
- DKFZ Junior Group Metabolism and Stem Cell Plasticity (A171), German Cancer Research Center, Heidelberg 69120, Germany
| | - Maximilian Schuster
- DKFZ Junior Group Metabolism and Stem Cell Plasticity (A171), German Cancer Research Center, Heidelberg 69120, Germany
| | - Irina Meln
- DKFZ Junior Group Metabolism and Stem Cell Plasticity (A171), German Cancer Research Center, Heidelberg 69120, Germany
| | - Sarah Lerch
- DKFZ Junior Group Metabolism and Stem Cell Plasticity (A171), German Cancer Research Center, Heidelberg 69120, Germany
| | - Rayane A Ghandour
- Université Côte d'Azur, CNRS, Inserm, Institute of Biology Valrose, Nice 06100, France
| | - Didier F Pisani
- Université Côte d'Azur, CNRS, Inserm, Institute of Biology Valrose, Nice 06100, France
| | - Irem Bayindir-Buchhalter
- DKFZ Junior Group Metabolism and Stem Cell Plasticity (A171), German Cancer Research Center, Heidelberg 69120, Germany
| | - Julia Marx
- DKFZ Junior Group Metabolism and Stem Cell Plasticity (A171), German Cancer Research Center, Heidelberg 69120, Germany
| | - Shuang Wu
- DKFZ Junior Group Metabolism and Stem Cell Plasticity (A171), German Cancer Research Center, Heidelberg 69120, Germany.,Department of Toxicology, School of Public Health, Peking University, Beijing 100191, China
| | - Gabriele Schoiswohl
- Division of Endocrinology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Adrian T Billeter
- Department of General, Visceral, and Transplantation Surgery, University of Heidelberg, Heidelberg 69120, Germany
| | - Damir Krunic
- Light Microscopy Facility, German Cancer Research Center, Heidelberg 69120, Germany
| | - Jan Mauer
- Max Planck Institute for Metabolism Research Cologne, Cologne 50931, Germany
| | - Yun-Hee Lee
- College of Pharmacy, Yonsei University, Incheon 406-840, South Korea
| | - James G Granneman
- Center for Integrative Metabolic and Endocrine Research, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Lars Fischer
- Department of General, Visceral, and Transplantation Surgery, University of Heidelberg, Heidelberg 69120, Germany
| | - Beat P Müller-Stich
- Department of General, Visceral, and Transplantation Surgery, University of Heidelberg, Heidelberg 69120, Germany
| | - Ez-Zoubir Amri
- Université Côte d'Azur, CNRS, Inserm, Institute of Biology Valrose, Nice 06100, France
| | - Erin E Kershaw
- Division of Endocrinology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Mathias Heikenwälder
- Division of Chronic Inflammation and Cancer (F180), German Cancer Research Center, Heidelberg 69120, Germany
| | - Stephan Herzig
- Helmholtz Center Munich, Institute for Diabetes and Cancer (IDC), Neuherberg 85764, Germany. .,Joint Heidelberg-Institute for Diabetes and Cancer Translational Diabetes Program, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Alexandros Vegiopoulos
- DKFZ Junior Group Metabolism and Stem Cell Plasticity (A171), German Cancer Research Center, Heidelberg 69120, Germany.
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23
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Barquissau V, Léger B, Beuzelin D, Martins F, Amri EZ, Pisani DF, Saris WHM, Astrup A, Maoret JJ, Iacovoni J, Déjean S, Moro C, Viguerie N, Langin D. Caloric Restriction and Diet-Induced Weight Loss Do Not Induce Browning of Human Subcutaneous White Adipose Tissue in Women and Men with Obesity. Cell Rep 2018; 22:1079-1089. [PMID: 29386128 DOI: 10.1016/j.celrep.2017.12.102] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 10/18/2017] [Accepted: 12/27/2017] [Indexed: 01/25/2023] Open
Abstract
Caloric restriction (CR) is standard lifestyle therapy in obesity management. CR-induced weight loss improves the metabolic profile of individuals with obesity. In mice, occurrence of beige fat cells in white fat depots favors a metabolically healthy phenotype, and CR promotes browning of white adipose tissue (WAT). Here, human subcutaneous abdominal WAT samples were analyzed in 289 individuals with obesity following a two-phase dietary intervention consisting of an 8 week very low calorie diet and a 6-month weight-maintenance phase. Before the intervention, we show sex differences and seasonal variation, with higher expression of brown and beige markers in women with obesity and during winter, respectively. The very low calorie diet resulted in decreased browning of subcutaneous abdominal WAT. During the whole dietary intervention, evolution of body fat and insulin resistance was independent of changes in brown and beige fat markers. These data suggest that diet-induced effects on body fat and insulin resistance are independent of subcutaneous abdominal WAT browning in people with obesity.
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Affiliation(s)
- Valentin Barquissau
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France
| | - Benjamin Léger
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France
| | - Diane Beuzelin
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France
| | - Frédéric Martins
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France
| | - Ez-Zoubir Amri
- University of Côte d'Azur, CNRS, Inserm, iBV, Nice, France
| | | | - Wim H M Saris
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Arne Astrup
- Department of Nutrition, Exercise and Sports, Faculty of Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jean-José Maoret
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France
| | - Jason Iacovoni
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France
| | - Sébastien Déjean
- University of Toulouse, Paul Sabatier University, Toulouse, France; CNRS, UMR 5219, Toulouse Mathematics Institute, Toulouse, France
| | - Cédric Moro
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France
| | - Nathalie Viguerie
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France
| | - Dominique Langin
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, Toulouse, France; Toulouse University Hospitals, Laboratory of Clinical Biochemistry, Toulouse, France.
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24
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Ghandour RA, Colson C, Giroud M, Maurer S, Rekima S, Ailhaud G, Klingenspor M, Amri EZ, Pisani DF. Impact of dietary ω3 polyunsaturated fatty acid supplementation on brown and brite adipocyte function. J Lipid Res 2018; 59:452-461. [PMID: 29343538 DOI: 10.1194/jlr.m081091] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 01/15/2018] [Indexed: 12/31/2022] Open
Abstract
The recent characterization of functional brown adipose tissue in adult humans has opened new perspectives for regulation of energy expenditure with respect to obesity and diabetes. Furthermore, dietary recommendations have taken into account the insufficient dietary intake of ω3 PUFAs and the concomitant excessive intake of ω6 PUFA associated with the occurrence of overweight/obesity. We aimed to study whether ω3 PUFAs could play a role in the recruitment and function of energy-dissipating brown/brite adipocytes. We show that ω3 PUFA supplementation has a beneficial effect on the thermogenic function of adipocytes. In vivo, a low dietary ω6:ω3 ratio improved the thermogenic response of brown and white adipose tissues to β3-adrenergic stimulation. This effect was recapitulated in vitro by PUFA treatment of hMADS adipocytes. We pinpointed the ω6-derived eicosanoid prostaglandin (PG)F2α as the molecular origin because the effects were mimicked with a specific PGF2α receptor agonist. PGF2α level in hMADS adipocytes was reduced in response to ω3 PUFA supplementation. The recruitment of thermogenic adipocytes is influenced by the local quantity of individual oxylipins, which is controlled by the ω6:ω3 ratio of available lipids. In human nutrition, energy homeostasis may thus benefit from the implementation of a more balanced dietary ω6:ω3 ratio.
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Affiliation(s)
| | | | - Maude Giroud
- Institute for Diabetes and Cancer (IDC), Helmholtz Zentrum, München, Germany
| | - Stefanie Maurer
- Center for Nutritional Medicine, Technical University Munich, Freising, Germany
| | - Samah Rekima
- Université Côte d'Azur, CNRS, Inserm, iBV, Nice, France
| | | | - Martin Klingenspor
- Center for Nutritional Medicine, Technical University Munich, Freising, Germany
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25
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Abstract
Osteoporosis and overweight/obesity constitute major worldwide public health burdens. Aging is associated with a decrease in hormonal secretion, lean mass and bone mass, and an increase in fat accumulation. It is established that both obesity and osteoporosis are affected by genetic and environmental factors, bone remodeling and adiposity are both regulated through the hypothalamus and sympathetic nervous system. Oxytocin (OT), belongs to the pituitary hormone family and regulates the function of peripheral target organs, its circulating levels decreased with age. Nowadays, it is well established that OT plays an important role in the control of bone and fat mass and their metabolism. Of note, OT and oxytocin receptor knock out mice develop bone defects and late-onset obesity. Thus OT emerges as a promising molecule in the treatment of osteoporosis and obesity as well as associated metabolic disorders such as type 2 diabetes and cardiovascular diseases. In this review, we will discuss findings regarding the OT effects on bone and fat mass.
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26
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Dumortier O, Roger E, Pisani DF, Casamento V, Gautier N, Lebrun P, Johnston H, Lopez P, Amri EZ, Jousse C, Fafournoux P, Prentki M, Hinault C, Van Obberghen E. Age-Dependent Control of Energy Homeostasis by Brown Adipose Tissue in Progeny Subjected to Maternal Diet-Induced Fetal Programming. Diabetes 2017; 66:627-639. [PMID: 27927722 DOI: 10.2337/db16-0956] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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] [Received: 08/05/2016] [Accepted: 11/27/2016] [Indexed: 11/13/2022]
Abstract
Epidemiological and animal studies show that deleterious maternal environments predispose aging offspring to metabolic disorders and type 2 diabetes. Young progenies in a rat model of maternal low-protein (LP) diet are normoglycemic despite collapsed insulin secretion. However, without further worsening of the insulin secretion defect, glucose homeostasis deteriorates in aging LP descendants. Here we report that normoglycemic and insulinopenic 3-month-old LP progeny shows increased body temperature and energy dissipation in association with enhanced brown adipose tissue (BAT) activity. In addition, it is protected against a cold challenge and high-fat diet (HFD)-induced obesity with associated insulin resistance and hyperglycemia. Surgical BAT ablation in 3-month-old LP offspring normalizes body temperature and causes postprandial hyperglycemia. At 10 months, BAT activity declines in LP progeny with the appearance of reduced protection to HFD-induced obesity; at 18 months, LP progeny displays a BAT activity comparable to control offspring and insulin resistance and hyperglycemia occur. Together our findings identify BAT as a decisive physiological determinant of the onset of metabolic dysregulation in offspring predisposed to altered β-cell function and hyperglycemia and place it as a critical regulator of fetal programming of adult metabolic disease.
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Affiliation(s)
| | - Estelle Roger
- Université Côte d'Azur, INSERM, CNRS, IRCAN, Nice, France
| | | | | | - Nadine Gautier
- Université Côte d'Azur, INSERM, CNRS, IRCAN, Nice, France
| | | | | | - Pascal Lopez
- Université Côte d'Azur, INSERM, CNRS, IRCAN, Nice, France
| | | | | | | | - Marc Prentki
- CRCHUM and Montreal Diabetes Research Center and Departments of Nutrition and Biochemistry and Molecular Medicine, University of Montreal, Montreal, Quebec, Canada
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Melis N, Rubera I, Cougnon M, Giraud S, Mograbi B, Belaid A, Pisani DF, Huber SM, Lacas-Gervais S, Fragaki K, Blondeau N, Vigne P, Frelin C, Hauet T, Duranton C, Tauc M. Targeting eIF5A Hypusination Prevents Anoxic Cell Death through Mitochondrial Silencing and Improves Kidney Transplant Outcome. J Am Soc Nephrol 2017; 28:811-822. [PMID: 27612998 PMCID: PMC5328152 DOI: 10.1681/asn.2016010012] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 07/20/2016] [Indexed: 11/03/2022] Open
Abstract
The eukaryotic initiation factor 5A (eIF5A), which is highly conserved throughout evolution, has the unique characteristic of post-translational activation through hypusination. This modification is catalyzed by two enzymatic steps involving deoxyhypusine synthase (DHPS) and deoxyhypusine hydroxylase (DOHH). Notably, eIF5A may be involved in regulating the lifespan of Drosophila during long-term hypoxia. Therefore, we investigated the possibility of a link between eIF5A hypusination and cellular resistance to hypoxia/anoxia. Pharmacologic targeting of DHPS by N1-guanyl-1,7-diaminoheptane (GC7) or RNA interference-mediated inhibition of DHPS or DOHH induced tolerance to anoxia in immortalized mouse renal proximal cells. Furthermore, GC7 treatment of cells reversibly induced a metabolic shift toward glycolysis as well as mitochondrial remodeling and led to downregulated expression and activity of respiratory chain complexes, features characteristic of mitochondrial silencing. GC7 treatment also attenuated anoxia-induced generation of reactive oxygen species in these cells and in normoxic conditions, decreased the mitochondrial oxygen consumption rate of cultured cells and mice. In rats, intraperitoneal injection of GC7 substantially reduced renal levels of hypusinated eIF5A and protected against ischemia-reperfusion-induced renal injury. Finally, in the preclinical pig kidney transplant model, intravenous injection of GC7 before kidney removal significantly improved graft function recovery and late graft function and reduced interstitial fibrosis after transplant. This unconventional signaling pathway offers an innovative therapeutic target for treating hypoxic-ischemic human diseases and organ transplantation.
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Affiliation(s)
- Nicolas Melis
- Laboratoire de Physio-Médecine Moléculaire, Centre National de la Recherche Scientifique-UMR7370
| | - Isabelle Rubera
- Laboratoire de Physio-Médecine Moléculaire, Centre National de la Recherche Scientifique-UMR7370
| | - Marc Cougnon
- Laboratoire de Physio-Médecine Moléculaire, Centre National de la Recherche Scientifique-UMR7370
| | - Sébastien Giraud
- Centre Hospitalo Universitaire Poitiers, Service de Biochimie, Poitiers, France
- Institut National de la Santé et de la Recherche Médicale U1082 Ischémie Reperfusion en Transplantation d'Organes Mécanismes et Innovations Thérapeutiques, Poitiers, France
- Faculté de Médecine et de Pharmacie, Université de Poitiers, Poitiers, France; and
| | - Baharia Mograbi
- Institut de Recherche sur le Cancer, Centre National de la Recherche Scientifique-UMR7284, Institut National de la Santé et de la Recherche Médicale U1081
| | - Amine Belaid
- Institut de Recherche sur le Cancer, Centre National de la Recherche Scientifique-UMR7284, Institut National de la Santé et de la Recherche Médicale U1081
| | - Didier F Pisani
- Institute of Biology Valrose, Centre National de la Recherche Scientifique-UMR7277 Institut National de la Santé et de la Recherche Médicale U1091
| | - Stephan M Huber
- Department of Radiation Oncology, University of Tübingen, Tuebingen, Germany
| | | | - Konstantina Fragaki
- Institut de Recherche sur le Cancer, Centre National de la Recherche Scientifique-UMR7284, Institut National de la Santé et de la Recherche Médicale U1081
| | - Nicolas Blondeau
- Institut de Physiologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique Unité Mixte de Recherche UMR7275, University Nice-Sophia Antipolis, Nice, France
| | - Paul Vigne
- Institute of Biology Valrose, Centre National de la Recherche Scientifique-UMR7277 Institut National de la Santé et de la Recherche Médicale U1091
| | - Christian Frelin
- Institute of Biology Valrose, Centre National de la Recherche Scientifique-UMR7277 Institut National de la Santé et de la Recherche Médicale U1091
| | - Thierry Hauet
- Centre Hospitalo Universitaire Poitiers, Service de Biochimie, Poitiers, France
- Institut National de la Santé et de la Recherche Médicale U1082 Ischémie Reperfusion en Transplantation d'Organes Mécanismes et Innovations Thérapeutiques, Poitiers, France
- Faculté de Médecine et de Pharmacie, Université de Poitiers, Poitiers, France; and
| | - Christophe Duranton
- Laboratoire de Physio-Médecine Moléculaire, Centre National de la Recherche Scientifique-UMR7370
| | - Michel Tauc
- Laboratoire de Physio-Médecine Moléculaire, Centre National de la Recherche Scientifique-UMR7370,
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Barquissau V, Ghandour RA, Ailhaud G, Klingenspor M, Langin D, Amri EZ, Pisani DF. Control of adipogenesis by oxylipins, GPCRs and PPARs. Biochimie 2016; 136:3-11. [PMID: 28034718 DOI: 10.1016/j.biochi.2016.12.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/02/2016] [Accepted: 12/23/2016] [Indexed: 01/15/2023]
Abstract
Oxylipins are bioactive metabolites derived from the oxygenation of ω3 and ω6 polyunsaturated fatty acids, triggered essentially by cyclooxygenase and lipoxygenase activities. Oxylipins are involved in the development and function of adipose tissue and their productions are strictly related to diet quality and quantity. Oxylipins signal via cell surface membrane (G Protein-coupled receptors) and nuclear receptors (peroxisome proliferator-activated receptors), two pathways playing a pivotal role in adipocyte biology. In this review, we made an attempt to cover the available knowledge about synthesis and molecular function of oxylipins known to modulate adipogenesis, adipocyte function and phenotype conversion, with a focus on their interaction with peroxisome proliferator-activated nuclear receptor family.
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Affiliation(s)
- Valentin Barquissau
- Inserm, UMR1048, Obesity Research Laboratory, Institute of Metabolic and Cardiovascular Diseases, Toulouse, 31432, France; University of Toulouse, UMR1048, Paul Sabatier University, Toulouse, 31432, France
| | | | | | - Martin Klingenspor
- Technische Universität München, Chair of Molecular Nutritional Medicine, Else Kröner-Fresenius Center, 85350, Freising-Weihenstephan, Germany
| | - Dominique Langin
- Inserm, UMR1048, Obesity Research Laboratory, Institute of Metabolic and Cardiovascular Diseases, Toulouse, 31432, France; University of Toulouse, UMR1048, Paul Sabatier University, Toulouse, 31432, France; Toulouse University Hospitals, Department of Clinical Biochemistry, Toulouse, 31059, France
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Giroud M, Pisani DF, Karbiener M, Barquissau V, Ghandour RA, Tews D, Fischer-Posovszky P, Chambard JC, Knippschild U, Niemi T, Taittonen M, Nuutila P, Wabitsch M, Herzig S, Virtanen KA, Langin D, Scheideler M, Amri EZ. miR-125b affects mitochondrial biogenesis and impairs brite adipocyte formation and function. Mol Metab 2016; 5:615-625. [PMID: 27656399 PMCID: PMC5021678 DOI: 10.1016/j.molmet.2016.06.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [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: 04/13/2016] [Revised: 06/06/2016] [Accepted: 06/08/2016] [Indexed: 12/17/2022] Open
Abstract
Objective In rodents and humans, besides brown adipose tissue (BAT), islands of thermogenic adipocytes, termed “brite” (brown-in-white) or beige adipocytes, emerge within white adipose tissue (WAT) after cold exposure or β3-adrenoceptor stimulation, which may protect from obesity and associated diseases. microRNAs are novel modulators of adipose tissue development and function. The purpose of this work was to characterize the role of microRNAs in the control of brite adipocyte formation. Methods/Results Using human multipotent adipose derived stem cells, we identified miR-125b-5p as downregulated upon brite adipocyte formation. In humans and rodents, miR-125b-5p expression was lower in BAT than in WAT. In vitro, overexpression and knockdown of miR-125b-5p decreased and increased mitochondrial biogenesis, respectively. In vivo, miR-125b-5p levels were downregulated in subcutaneous WAT and interscapular BAT upon β3-adrenergic receptor stimulation. Injections of an miR-125b-5p mimic and LNA inhibitor directly into WAT inhibited and increased β3-adrenoceptor-mediated induction of UCP1, respectively, and mitochondrial brite adipocyte marker expression and mitochondriogenesis. Conclusion Collectively, our results demonstrate that miR-125b-5p plays an important role in the repression of brite adipocyte function by modulating oxygen consumption and mitochondrial gene expression. miR-125b-5p levels negatively correlate with UCP1 expression in rodent and human. miR125b levels in white adipose tissue are positively correlated with BMI. miR-125b-5p modulates oxygen consumption. Mitochondriogenesis is controlled by miR-125b-5p. In vivo modulation of miR-125b-5p controls brown and brite adipocyte formation.
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Affiliation(s)
- Maude Giroud
- Univ. Nice Sophia Antipolis, CNRS, Inserm, iBV, 06100 Nice, France
| | - Didier F Pisani
- Univ. Nice Sophia Antipolis, CNRS, Inserm, iBV, 06100 Nice, France
| | - Michael Karbiener
- Department of Phoniatrics, ENT University Hospital, Medical University Graz, Graz, Austria
| | - Valentin Barquissau
- Inserm, UMR1048, Obesity Research Laboratory, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, UMR1048, Paul Sabatier University, Toulouse, France
| | | | - Daniel Tews
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, D-89075 Ulm, Germany
| | - Pamela Fischer-Posovszky
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, D-89075 Ulm, Germany
| | | | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Surgery Center, D-89075 Ulm, Germany
| | - Tarja Niemi
- Department of Endocrinology, Turku University Hospital, Turku, 20521, Finland
| | - Markku Taittonen
- Department of Endocrinology, Turku University Hospital, Turku, 20521, Finland
| | - Pirjo Nuutila
- Department of Endocrinology, Turku University Hospital, Turku, 20521, Finland; Turku University Hospital, Turku, Finland
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, D-89075 Ulm, Germany
| | - Stephan Herzig
- Institute for Diabetes and Cancer (IDC), Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany; Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, Heidelberg, Germany; Molecular Metabolic Control, Medical Faculty, Technical University Munich, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Kirsi A Virtanen
- Department of Endocrinology, Turku University Hospital, Turku, 20521, Finland; Turku PET Centre, University of Turku, Turku, Finland
| | - Dominique Langin
- Inserm, UMR1048, Obesity Research Laboratory, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, UMR1048, Paul Sabatier University, Toulouse, France; Toulouse University Hospitals, Department of Clinical Biochemistry, Toulouse, France
| | - Marcel Scheideler
- Institute for Diabetes and Cancer (IDC), Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany; Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, Heidelberg, Germany; Molecular Metabolic Control, Medical Faculty, Technical University Munich, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Ez-Zoubir Amri
- Univ. Nice Sophia Antipolis, CNRS, Inserm, iBV, 06100 Nice, France.
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Giroud M, Pisani DF, Karbiener M, Barquisseau V, Ghandour RA, Chambard JC, Herzig S, Virtanen KA, Langin D, Scheideler M, Amri ZE. miR-125b impairs brite adipocyte formation and function. DIABETOL STOFFWECHS 2016. [DOI: 10.1055/s-0036-1580914] [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: 10/21/2022]
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Pisani DF, Dumortier O, Beranger GE, Casamento V, Ghandour RA, Giroud M, Gautier N, Balaguer T, Chambard JC, Virtanen KA, Nuutila P, Niemi T, Taittonen M, Van Obberghen E, Hinault C, Amri EZ. Visfatin expression analysis in association with recruitment and activation of human and rodent brown and brite adipocytes. Adipocyte 2016; 5:186-95. [PMID: 27386154 DOI: 10.1080/21623945.2015.1122854] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 05/12/2015] [Revised: 11/06/2015] [Accepted: 11/12/2015] [Indexed: 10/22/2022] Open
Abstract
Human brown adipocytes are able to burn fat and glucose and are now considered as a potential strategy to treat obesity, type 2 diabetes and metabolic disorders. Besides their thermogenic function, brown adipocytes are able to secrete adipokines. One of these is visfatin, a nicotinamide phosphoribosyltransferase involved in nicotinamide dinucleotide synthesis, which is known to participate in the synthesis of insulin by pancreatic β cells. In a therapeutic context, it is of interest to establish whether a potential correlation exists between brown adipocyte activation and/or brite adipocyte recruitment, and adipokine expression. We analyzed visfatin expression, as a pre-requisite to its secretion, in rodent and human biopsies and cell models of brown/brite adipocytes. We found that visfatin was preferentially expressed in mature adipocytes and that this expression was higher in brown adipose tissue of rodents compared to other fat depots. However, using various rodent models we were unable to find any correlation between visfatin expression and brown or brite adipocyte activation or recruitment. Interestingly, the situation is different in humans where visfatin expression was found to be equivalent between white and brown or brite adipocytes in vivo and in vitro. In conclusion, visfatin can be considered only as a rodent brown adipocyte biomarker, independently of tissue activation.
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Affiliation(s)
- Didier F. Pisani
- Univ. Nice-Sophia Antipolis, UFR Medecine, Nice, France
- CNRS, iBV, UMR, 7277, Nice, France
- INSERM, iBV, U1091, Nice, France
| | - Olivier Dumortier
- Univ. of Nice-Sophia Antipolis, Institute for Research on Cancer and Aging of Nice (IRCAN), Nice, France
- INSERM, IRCAN, U1081, Nice, France
- CNRS, IRCAN, UMR7284, Nice, France
| | - Guillaume E. Beranger
- Univ. Nice-Sophia Antipolis, UFR Medecine, Nice, France
- CNRS, iBV, UMR, 7277, Nice, France
- INSERM, iBV, U1091, Nice, France
| | - Virginie Casamento
- Univ. of Nice-Sophia Antipolis, Institute for Research on Cancer and Aging of Nice (IRCAN), Nice, France
- INSERM, IRCAN, U1081, Nice, France
- CNRS, IRCAN, UMR7284, Nice, France
| | - Rayane A. Ghandour
- Univ. Nice-Sophia Antipolis, UFR Medecine, Nice, France
- CNRS, iBV, UMR, 7277, Nice, France
- INSERM, iBV, U1091, Nice, France
| | - Maude Giroud
- Univ. Nice-Sophia Antipolis, UFR Medecine, Nice, France
- CNRS, iBV, UMR, 7277, Nice, France
- INSERM, iBV, U1091, Nice, France
| | - Nadine Gautier
- Univ. of Nice-Sophia Antipolis, Institute for Research on Cancer and Aging of Nice (IRCAN), Nice, France
- INSERM, IRCAN, U1081, Nice, France
- CNRS, IRCAN, UMR7284, Nice, France
| | - Thierry Balaguer
- Univ. Nice-Sophia Antipolis, UFR Medecine, Nice, France
- CNRS, iBV, UMR, 7277, Nice, France
- INSERM, iBV, U1091, Nice, France
- Centre Hospitalo-Universitaire Nice, Department of Plastic, Reconstructive and Hand Surgery, St-Roch Hospital, Nice, France
| | - Jean-Claude Chambard
- Univ. Nice-Sophia Antipolis, UFR Medecine, Nice, France
- CNRS, iBV, UMR, 7277, Nice, France
- INSERM, iBV, U1091, Nice, France
| | - Kirsi A. Virtanen
- Turku PET Center, University of Turku, Turku, Finland
- Turku PET Center, Turku University Hospital, Turku, Finland
| | - Pirjo Nuutila
- Turku PET Center, University of Turku, Turku, Finland
- Department of Endocrinology, Turku University Hospital, Turku, Finland
| | - Tarja Niemi
- Department of Surgery, Turku University Hospital, Turku, Finland
| | - Markku Taittonen
- Department of Anesthesiology, Turku University Hospital, Turku, Finland
| | - Emmanuel Van Obberghen
- Univ. of Nice-Sophia Antipolis, Institute for Research on Cancer and Aging of Nice (IRCAN), Nice, France
- INSERM, IRCAN, U1081, Nice, France
- CNRS, IRCAN, UMR7284, Nice, France
- Centre Hospitalo-Universitaire Nice, Biochemistry Laboratory, Pasteur Hospital, Nice, France
| | - Charlotte Hinault
- Univ. of Nice-Sophia Antipolis, Institute for Research on Cancer and Aging of Nice (IRCAN), Nice, France
- INSERM, IRCAN, U1081, Nice, France
- CNRS, IRCAN, UMR7284, Nice, France
- Centre Hospitalo-Universitaire Nice, Biochemistry Laboratory, Pasteur Hospital, Nice, France
| | - Ez-Zoubir Amri
- Univ. Nice-Sophia Antipolis, UFR Medecine, Nice, France
- CNRS, iBV, UMR, 7277, Nice, France
- INSERM, iBV, U1091, Nice, France
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Barquissau V, Beuzelin D, Pisani DF, Beranger GE, Mairal A, Montagner A, Roussel B, Tavernier G, Marques MA, Moro C, Guillou H, Amri EZ, Langin D. White-to-brite conversion in human adipocytes promotes metabolic reprogramming towards fatty acid anabolic and catabolic pathways. Mol Metab 2016; 5:352-365. [PMID: 27110487 PMCID: PMC4837301 DOI: 10.1016/j.molmet.2016.03.002] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [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: 03/03/2016] [Accepted: 03/13/2016] [Indexed: 12/29/2022] Open
Abstract
Objective Fat depots with thermogenic activity have been identified in humans. In mice, the appearance of thermogenic adipocytes within white adipose depots (so-called brown-in-white i.e., brite or beige adipocytes) protects from obesity and insulin resistance. Brite adipocytes may originate from direct conversion of white adipocytes. The purpose of this work was to characterize the metabolism of human brite adipocytes. Methods Human multipotent adipose-derived stem cells were differentiated into white adipocytes and then treated with peroxisome proliferator-activated receptor (PPAR)γ or PPARα agonists between day 14 and day 18. Gene expression profiling was determined using DNA microarrays and RT-qPCR. Variations of mRNA levels were confirmed in differentiated human preadipocytes from primary cultures. Fatty acid and glucose metabolism was investigated using radiolabelled tracers, Western blot analyses and assessment of oxygen consumption. Pyruvate dehydrogenase kinase 4 (PDK4) knockdown was achieved using siRNA. In vivo, wild type and PPARα-null mice were treated with a β3-adrenergic receptor agonist (CL316,243) to induce appearance of brite adipocytes in white fat depot. Determination of mRNA and protein levels was performed on inguinal white adipose tissue. Results PPAR agonists promote a conversion of white adipocytes into cells displaying a brite molecular pattern. This conversion is associated with transcriptional changes leading to major metabolic adaptations. Fatty acid anabolism i.e., fatty acid esterification into triglycerides, and catabolism i.e., lipolysis and fatty acid oxidation, are increased. Glucose utilization is redirected from oxidation towards glycerol-3-phophate production for triglyceride synthesis. This metabolic shift is dependent on the activation of PDK4 through inactivation of the pyruvate dehydrogenase complex. In vivo, PDK4 expression is markedly induced in wild-type mice in response to CL316,243, while this increase is blunted in PPARα-null mice displaying an impaired britening response. Conclusions Conversion of human white fat cells into brite adipocytes results in a major metabolic reprogramming inducing fatty acid anabolic and catabolic pathways. PDK4 redirects glucose from oxidation towards triglyceride synthesis and favors the use of fatty acids as energy source for uncoupling mitochondria. PPARγ and α agonists induce conversion of human white into brite adipocytes. Fatty acid anabolism and catabolism are activated in human brite adipocytes. Glucose use in brite adipocytes is redirected from oxidation to glyceroneogenesis. PDK4 induction is responsible for the shift from glucose to fatty acid oxidation.
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Affiliation(s)
- V Barquissau
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, France
| | - D Beuzelin
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, France
| | - D F Pisani
- University of Nice Sophia Antipolis, Nice, France; CNRS, iBV, UMR 7277, Nice, France; INSERM, iBV, U 1091, Nice, France
| | - G E Beranger
- University of Nice Sophia Antipolis, Nice, France; CNRS, iBV, UMR 7277, Nice, France; INSERM, iBV, U 1091, Nice, France
| | - A Mairal
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, France
| | - A Montagner
- University of Toulouse, Paul Sabatier University, France; INRA, UMR 1331, TOXALIM, Toulouse, France
| | - B Roussel
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, France
| | - G Tavernier
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, France
| | - M-A Marques
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, France
| | - C Moro
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, France
| | - H Guillou
- University of Toulouse, Paul Sabatier University, France; INRA, UMR 1331, TOXALIM, Toulouse, France
| | - E-Z Amri
- University of Nice Sophia Antipolis, Nice, France; CNRS, iBV, UMR 7277, Nice, France; INSERM, iBV, U 1091, Nice, France
| | - D Langin
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France; University of Toulouse, Paul Sabatier University, France; Toulouse University Hospitals, Laboratory of Clinical Biochemistry, Toulouse, France.
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Ghandour RA, Giroud M, Vegiopoulos A, Herzig S, Ailhaud G, Amri EZ, Pisani DF. IP-receptor and PPARs trigger the conversion of human white to brite adipocyte induced by carbaprostacyclin. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1861:285-93. [PMID: 26775637 DOI: 10.1016/j.bbalip.2016.01.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 01/04/2016] [Accepted: 01/12/2016] [Indexed: 12/31/2022]
Abstract
Brite adipocytes recently discovered in humans are of considerable importance in energy expenditure by converting energy excess into heat. This property could be useful in the treatment of obesity, and nutritional aspects are relevant to this important issue. Using hMADS cells as a human cell model which undergoes a white to a brite adipocyte conversion, we had shown previously that arachidonic acid, the major metabolite of the essential nutrient Ω6-linoleic acid, plays a major role in this process. Its metabolites PGE2 and PGF2 alpha inhibit this process via a calcium-dependent pathway, whereas in contrast carbaprostacyclin (cPGI2), a stable analog of prostacyclin, activates white to brite adipocyte conversion. Herein, we show that cPGI2 generates via its cognate cell-surface receptor IP-R, a cyclic AMP-signaling pathway involving PKA activity which in turn induces the expression of UCP1. In addition, cPGI2 activates the pathway of nuclear receptors of the PPAR family, i.e. PPARα and PPARγ, which act separately from IP-R to up-regulate the expression of key genes involved in the function of brite adipocytes. Thus dual pathways are playing in concert for the occurrence of a browning process of human white adipocytes. These results make prostacyclin analogs as a new class of interesting molecules to treat obesity and associated diseases.
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Affiliation(s)
- Rayane A Ghandour
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, Nice, France; CNRS, iBV UMR 7277, Nice, France; Inserm, iBV, U1091, Nice, France
| | - Maude Giroud
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, Nice, France; CNRS, iBV UMR 7277, Nice, France; Inserm, iBV, U1091, Nice, France
| | - Alexandros Vegiopoulos
- DKFZ Junior Group Metabolism and Stem Cell Plasticity, German Cancer Research Center, Heidelberg, Germany
| | - Stephan Herzig
- Institute for Diabetes and Cancer (IDC), Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany; Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, Heidelberg, Germany; Molecular Metabolic Control, Medical Faculty, Technical University Munich, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Gérard Ailhaud
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, Nice, France; CNRS, iBV UMR 7277, Nice, France; Inserm, iBV, U1091, Nice, France
| | - Ez-Zoubir Amri
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, Nice, France; CNRS, iBV UMR 7277, Nice, France; Inserm, iBV, U1091, Nice, France.
| | - Didier F Pisani
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, Nice, France; CNRS, iBV UMR 7277, Nice, France; Inserm, iBV, U1091, Nice, France.
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Karbiener M, Glantschnig C, Pisani DF, Laurencikiene J, Dahlman I, Herzig S, Amri EZ, Scheideler M. Mesoderm-specific transcript (MEST) is a negative regulator of human adipocyte differentiation. Int J Obes (Lond) 2015; 39:1733-41. [PMID: 26119994 PMCID: PMC4625608 DOI: 10.1038/ijo.2015.121] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 06/09/2015] [Accepted: 06/22/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND A growing body of evidence suggests that many downstream pathologies of obesity are amplified or even initiated by molecular changes within the white adipose tissue (WAT). Such changes are the result of an excessive expansion of individual white adipocytes and could potentially be ameliorated via an increase in de novo adipocyte recruitment (adipogenesis). Mesoderm-specific transcript (MEST) is a protein with a putative yet unidentified enzymatic function and has previously been shown to correlate with adiposity and adipocyte size in mouse. OBJECTIVES This study analysed WAT samples and employed a cell model of adipogenesis to characterise MEST expression and function in human. METHODS AND RESULTS MEST mRNA and protein levels increased during adipocyte differentiation of human multipotent adipose-derived stem cells. Further, obese individuals displayed significantly higher MEST levels in WAT compared with normal-weight subjects, and MEST was significantly correlated with adipocyte volume. In striking contrast to previous mouse studies, knockdown of MEST enhanced human adipocyte differentiation, most likely via a significant promotion of peroxisome proliferator-activated receptor signalling, glycolysis and fatty acid biosynthesis pathways at early stages. Correspondingly, overexpression of MEST impaired adipogenesis. We further found that silencing of MEST fully substitutes for the phosphodiesterase inhibitor 3-isobutyl-1-methylxanthine (IBMX) as an inducer of adipogenesis. Accordingly, phosphorylation of the pro-adipogenic transcription factors cyclic AMP responsive element binding protein (CREB) and activating transcription factor 1 (ATF1) were highly increased on MEST knockdown. CONCLUSIONS Although we found a similar association between MEST and adiposity as previously described for mouse, our functional analyses suggest that MEST acts as an inhibitor of human adipogenesis, contrary to previous murine studies. We have further established a novel link between MEST and CREB/ATF1 that could be of general relevance in regulation of metabolism, in particular obesity-associated diseases.
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Affiliation(s)
- M Karbiener
- Department of Phoniatrics, ENT University Hospital, Medical University Graz, Graz, Austria
| | - C Glantschnig
- Institute for Diabetes and Cancer (IDC), Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, Heidelberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - D F Pisani
- Université Nice Sophia Antipolis, iBV, UMR, Nice, France
- CNRS, iBV, UMR, Nice, France
- Inserm, iBV, Nice, France
| | - J Laurencikiene
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - I Dahlman
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - S Herzig
- Institute for Diabetes and Cancer (IDC), Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, Heidelberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - E-Z Amri
- Université Nice Sophia Antipolis, iBV, UMR, Nice, France
- CNRS, iBV, UMR, Nice, France
- Inserm, iBV, Nice, France
| | - M Scheideler
- Institute for Diabetes and Cancer (IDC), Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, Heidelberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
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35
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Pisani DF, Beranger GE, Corinus A, Giroud M, Ghandour RA, Altirriba J, Chambard JC, Mazure NM, Bendahhou S, Duranton C, Michiels JF, Frontini A, Rohner-Jeanrenaud F, Cinti S, Christian M, Barhanin J, Amri EZ. The K+ channel TASK1 modulates β-adrenergic response in brown adipose tissue through the mineralocorticoid receptor pathway. FASEB J 2015; 30:909-22. [PMID: 26527067 DOI: 10.1096/fj.15-277475] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [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: 06/10/2015] [Accepted: 10/19/2015] [Indexed: 01/26/2023]
Abstract
Brown adipose tissue (BAT) is essential for adaptive thermogenesis and dissipation of caloric excess through the activity of uncoupling protein (UCP)-1. BAT in humans is of great interest for the treatment of obesity and related diseases. In this study, the expression of Twik-related acid-sensitive K(+) channel (TASK)-1 [a pH-sensitive potassium channel encoded by the potassium channel, 2-pore domain, subfamily K, member 3 (Kcnk3) gene] correlated highly with Ucp1 expression in obese and cold-exposed mice. In addition, Task1-null mice, compared with their controls, became overweight, mainly because of an increase in white adipose tissue mass and BAT whitening. Task1(-/-)-mouse-derived brown adipocytes, compared with wild-type mouse-derived brown adipocytes, displayed an impaired β3-adrenergic receptor response that was characterized by a decrease in oxygen consumption, Ucp1 expression, and lipolysis. This phenotype was thought to be caused by an exacerbation of mineralocorticoid receptor (MR) signaling, given that it was mimicked by corticoids and reversed by an MR inhibitor. We concluded that the K(+) channel TASK1 controls the thermogenic activity in brown adipocytes through modulation of β-adrenergic receptor signaling.
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Affiliation(s)
- Didier F Pisani
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Guillaume E Beranger
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Alain Corinus
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Maude Giroud
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Rayane A Ghandour
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Jordi Altirriba
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Jean-Claude Chambard
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Nathalie M Mazure
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Saïd Bendahhou
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Christophe Duranton
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Jean-François Michiels
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Andrea Frontini
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Françoise Rohner-Jeanrenaud
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Saverio Cinti
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Mark Christian
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Jacques Barhanin
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Ez-Zoubir Amri
- *University of Nice Sophia Antipolis, Nice, France; Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Valrose (iBV), Unité Mixte de Recherche (UMR) 7277, Nice, France; U1091, iBV, INSERM, Nice, France; UMR 7370 and Laboratories of Excellence, Ion Channel Science and Therapeutics, Laboratoire de PhysioMédecine Moléculaire (LP2M), CNRS, Nice, France; Laboratory of Metabolism, Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland, UMR 7284 and **U1081, CNRS, Institute for Research in Cancer and Aging in Nice, INSERM, Nice, France; Anatomopathology Service, Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France; Obesity Center, Department of Experimental and Clinical Medicine, Ancona, Italy; Warwick Medical School, University of Warwick, Coventry, United Kingdom
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36
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Karbiener M, Pisani DF, Frontini A, Oberreiter LM, Lang E, Vegiopoulos A, Mössenböck K, Bernhardt GA, Mayr T, Hildner F, Grillari J, Ailhaud G, Herzig S, Cinti S, Amri EZ, Scheideler M. MicroRNA-26 family is required for human adipogenesis and drives characteristics of brown adipocytes. Stem Cells 2015; 32:1578-90. [PMID: 24375761 DOI: 10.1002/stem.1603] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [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: 10/01/2013] [Revised: 11/07/2013] [Accepted: 11/16/2013] [Indexed: 12/16/2022]
Abstract
Adipose tissue contains thermogenic adipocytes (i.e., brown and brite/beige) that oxidize nutrients at exceptionally high rates via nonshivering thermogenesis. Its recent discovery in adult humans has opened up new avenues to fight obesity and related disorders such as diabetes. Here, we identified miR-26a and -26b as key regulators of human white and brite adipocyte differentiation. Both microRNAs are upregulated in early adipogenesis, and their inhibition prevented lipid accumulation while their overexpression accelerated it. Intriguingly, miR-26a significantly induced pathways related to energy dissipation, shifted mitochondrial morphology toward that seen in brown adipocytes, and promoted uncoupled respiration by markedly increasing the hallmark protein of brown fat, uncoupling protein 1. By combining in silico target prediction, transcriptomics, and an RNA interference screen, we identified the sheddase ADAM metallopeptidase domain 17 (ADAM17) as a direct target of miR-26 that mediated the observed effects on white and brite adipogenesis. These results point to a novel, critical role for the miR-26 family and its downstream effector ADAM17 in human adipocyte differentiation by promoting characteristics of energy-dissipating thermogenic adipocytes.
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Affiliation(s)
- Michael Karbiener
- RNA Biology Group, Institute for Genomics and Bioinformatics, Graz University of Technology, Austria
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37
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Olsen JM, Sato M, Dallner OS, Sandström AL, Pisani DF, Chambard JC, Amri EZ, Hutchinson DS, Bengtsson T. Glucose uptake in brown fat cells is dependent on mTOR complex 2-promoted GLUT1 translocation. ACTA ACUST UNITED AC 2015; 207:365-74. [PMID: 25385184 PMCID: PMC4226734 DOI: 10.1083/jcb.201403080] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Brown adipose tissue is the primary site for thermogenesis and can consume, in addition to free fatty acids, a very high amount of glucose from the blood, which can both acutely and chronically affect glucose homeostasis. Here, we show that mechanistic target of rapamycin (mTOR) complex 2 has a novel role in β3-adrenoceptor-stimulated glucose uptake in brown adipose tissue. We show that β3-adrenoceptors stimulate glucose uptake in brown adipose tissue via a signaling pathway that is comprised of two different parts: one part dependent on cAMP-mediated increases in GLUT1 transcription and de novo synthesis of GLUT1 and another part dependent on mTOR complex 2-stimulated translocation of newly synthesized GLUT1 to the plasma membrane, leading to increased glucose uptake. Both parts are essential for β3-adrenoceptor-stimulated glucose uptake. Importantly, the effect of β3-adrenoceptor on mTOR complex 2 is independent of the classical insulin-phosphoinositide 3-kinase-Akt pathway, highlighting a novel mechanism of mTOR complex 2 activation.
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Affiliation(s)
- Jessica M Olsen
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE -0691 Stockholm, Sweden
| | - Masaaki Sato
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE -0691 Stockholm, Sweden Department of Pharmacology and Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria 3052, Australia Department of Pharmacology and Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria 3052, Australia
| | - Olof S Dallner
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE -0691 Stockholm, Sweden Laboratory of Molecular Genetics, Howard Hughes Medical Institute, The Rockefeller University, New York, NY 10065
| | - Anna L Sandström
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE -0691 Stockholm, Sweden
| | - Didier F Pisani
- Institute of Biology Valrose, Centre National de la Recherche Scientifique UMR 7277, Institut National de la Santé et de la Recherche Médicale UMR 1091, University of Nice Sophia Antipolis, 06100 Nice, France
| | - Jean-Claude Chambard
- Institute of Biology Valrose, Centre National de la Recherche Scientifique UMR 7277, Institut National de la Santé et de la Recherche Médicale UMR 1091, University of Nice Sophia Antipolis, 06100 Nice, France
| | - Ez-Zoubir Amri
- Institute of Biology Valrose, Centre National de la Recherche Scientifique UMR 7277, Institut National de la Santé et de la Recherche Médicale UMR 1091, University of Nice Sophia Antipolis, 06100 Nice, France
| | - Dana S Hutchinson
- Department of Pharmacology and Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria 3052, Australia Department of Pharmacology and Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria 3052, Australia
| | - Tore Bengtsson
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE -0691 Stockholm, Sweden
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Beranger GE, Djedaini M, Battaglia S, Roux CH, Scheideler M, Heymann D, Amri EZ, Pisani DF. Oxytocin reverses osteoporosis in a sex-dependent manner. Front Endocrinol (Lausanne) 2015; 6:81. [PMID: 26042090 PMCID: PMC4437051 DOI: 10.3389/fendo.2015.00081] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 05/04/2015] [Indexed: 01/23/2023] Open
Abstract
The increase of life expectancy has led to the increase of age-related diseases such as osteoporosis. Osteoporosis is characterized by bone weakening promoting the occurrence of fractures with defective bone regeneration. Men aged over 50 have a prevalence for osteoporosis of 20%, which is related to a decline in sex hormones occurring during andropause or surgical orchidectomy. As we previously demonstrated in a mouse model for menopause in women that treatment with the neurohypophyseal peptide hormone oxytocin (OT) normalizes body weight and prevents the development of osteoporosis, herein we addressed the effects of OT in male osteoporosis. Thus, we treated orchidectomized mice, an animal model suitable for the study of male osteoporosis, for 8 weeks with OT and then analyzed trabecular and cortical bone parameters as well as fat mass using micro-computed tomography. Orchidectomized mice displayed severe bone loss, muscle atrophy accompanied by fat mass gain as expected in andropause. Interestingly, OT treatment in male mice normalized fat mass as it did in female mice. However, although OT treatment led to a normalization of bone parameters in ovariectomized mice, this did not happen in orchidectomized mice. Moreover, loss of muscle mass was not reversed in orchidectomized mice upon OT treatment. All of these observations indicate that OT acts on fat physiology in both sexes, but in a sex specific manner with regard to bone physiology.
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Affiliation(s)
- Guillaume E. Beranger
- UMR 7277, Institut of Biology Valrose (iBV), Université de Nice-Sophia-Antipolis, Nice, France
- UMR 7277, Institut of Biology Valrose (iBV), CNRS, Nice, France
- U1091, INSERM, Institut of Biology Valrose (iBV), Nice, France
| | - Mansour Djedaini
- UMR 7277, Institut of Biology Valrose (iBV), Université de Nice-Sophia-Antipolis, Nice, France
- UMR 7277, Institut of Biology Valrose (iBV), CNRS, Nice, France
- U1091, INSERM, Institut of Biology Valrose (iBV), Nice, France
| | - Séverine Battaglia
- Université de Nantes, Nantes, France
- UMR 957, INSERM, Equipe LIGUE Nationale Contre le Cancer 2012, Nantes, France
| | - Christian H. Roux
- UMR 7277, Institut of Biology Valrose (iBV), Université de Nice-Sophia-Antipolis, Nice, France
- UMR 7277, Institut of Biology Valrose (iBV), CNRS, Nice, France
- U1091, INSERM, Institut of Biology Valrose (iBV), Nice, France
- Service de Rhumatologie, Hopital l’Archet CHU, Nice, France
| | - Marcel Scheideler
- Helmholtz Center Munich, Institute for Diabetes and Cancer, Neuherberg, Germany
- Heidelberg University Hospital, Heidelberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Dominique Heymann
- Université de Nantes, Nantes, France
- UMR 957, INSERM, Equipe LIGUE Nationale Contre le Cancer 2012, Nantes, France
| | - Ez-Zoubir Amri
- UMR 7277, Institut of Biology Valrose (iBV), Université de Nice-Sophia-Antipolis, Nice, France
- UMR 7277, Institut of Biology Valrose (iBV), CNRS, Nice, France
- U1091, INSERM, Institut of Biology Valrose (iBV), Nice, France
- *Correspondence: Ez-Zoubir Amri and Didier F. Pisani, UMR 7277 CNRS – UMR 1091 INSERM, Faculté de Médecine, Institut of Biology Valrose (iBV), Université de Nice-Sophia-Antipolis, 28 Avenue de Valombrose, Nice Cedex 2 06107, France, ;
| | - Didier F. Pisani
- UMR 7277, Institut of Biology Valrose (iBV), Université de Nice-Sophia-Antipolis, Nice, France
- UMR 7277, Institut of Biology Valrose (iBV), CNRS, Nice, France
- U1091, INSERM, Institut of Biology Valrose (iBV), Nice, France
- *Correspondence: Ez-Zoubir Amri and Didier F. Pisani, UMR 7277 CNRS – UMR 1091 INSERM, Faculté de Médecine, Institut of Biology Valrose (iBV), Université de Nice-Sophia-Antipolis, 28 Avenue de Valombrose, Nice Cedex 2 06107, France, ;
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Loft A, Forss I, Siersbæk MS, Schmidt SF, Larsen ASB, Madsen JGS, Pisani DF, Nielsen R, Aagaard MM, Mathison A, Neville MJ, Urrutia R, Karpe F, Amri EZ, Mandrup S. Browning of human adipocytes requires KLF11 and reprogramming of PPARγ superenhancers. Genes Dev 2014; 29:7-22. [PMID: 25504365 PMCID: PMC4281566 DOI: 10.1101/gad.250829.114] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [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] [Indexed: 01/08/2023]
Abstract
Long-term exposure to peroxisome proliferator-activated receptor γ (PPARγ) agonists such as rosiglitazone induces browning of rodent and human adipocytes; however, the transcriptional mechanisms governing this phenotypic switch in adipocytes are largely unknown. Here we show that rosiglitazone-induced browning of human adipocytes activates a comprehensive gene program that leads to increased mitochondrial oxidative capacity. Once induced, this gene program and oxidative capacity are maintained independently of rosiglitazone, suggesting that additional browning factors are activated. Browning triggers reprogramming of PPARγ binding, leading to the formation of PPARγ "superenhancers" that are selective for brown-in-white (brite) adipocytes. These are highly associated with key brite-selective genes. Based on such an association, we identified an evolutionarily conserved metabolic regulator, Kruppel-like factor 11 (KLF11), as a novel browning transcription factor in human adipocytes that is required for rosiglitazone-induced browning, including the increase in mitochondrial oxidative capacity. KLF11 is directly induced by PPARγ and appears to cooperate with PPARγ in a feed-forward manner to activate and maintain the brite-selective gene program.
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Affiliation(s)
- Anne Loft
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Isabel Forss
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Majken Storm Siersbæk
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Søren Fisker Schmidt
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Ann-Sofie Bøgh Larsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Jesper Grud Skat Madsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark; The Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Didier F Pisani
- UMR 7277, Centre National de la Recherche Scientifique, U1091, Institut National de la Santé et de la Recherche Médicale, Institute of Biology Valrose, University Nice Sophia Antipolis, 06100 Nice, France
| | - Ronni Nielsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Mads Malik Aagaard
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Angela Mathison
- Laboratory of Epigenetics and Chromatin Dynamics, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Matt J Neville
- National Institute for Health Research, Oxford Biomedical Research Centre, OX3 7LE Oxford, United Kingdom
| | - Raul Urrutia
- Laboratory of Epigenetics and Chromatin Dynamics, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Fredrik Karpe
- National Institute for Health Research, Oxford Biomedical Research Centre, OX3 7LE Oxford, United Kingdom
| | - Ez-Zoubir Amri
- UMR 7277, Centre National de la Recherche Scientifique, U1091, Institut National de la Santé et de la Recherche Médicale, Institute of Biology Valrose, University Nice Sophia Antipolis, 06100 Nice, France
| | - Susanne Mandrup
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark;
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40
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Olsen JM, Sato M, Dallner OS, Sandström AL, Pisani DF, Chambard JC, Amri EZ, Hutchinson DS, Bengtsson T. Glucose uptake in brown fat cells is dependent on mTOR complex 2–promoted GLUT1 translocation. J Exp Med 2014. [DOI: 10.1084/jem.21112oia69] [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: 11/04/2022] Open
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41
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Pisani DF, Ghandour RA, Beranger GE, Le Faouder P, Chambard JC, Giroud M, Vegiopoulos A, Djedaini M, Bertrand-Michel J, Tauc M, Herzig S, Langin D, Ailhaud G, Duranton C, Amri EZ. The ω6-fatty acid, arachidonic acid, regulates the conversion of white to brite adipocyte through a prostaglandin/calcium mediated pathway. Mol Metab 2014; 3:834-47. [PMID: 25506549 PMCID: PMC4264041 DOI: 10.1016/j.molmet.2014.09.003] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/03/2014] [Accepted: 09/04/2014] [Indexed: 12/01/2022] Open
Abstract
Objective Brite adipocytes are inducible energy-dissipating cells expressing UCP1 which appear within white adipose tissue of healthy adult individuals. Recruitment of these cells represents a potential strategy to fight obesity and associated diseases. Methods/Results Using human Multipotent Adipose-Derived Stem cells, able to convert into brite adipocytes, we show that arachidonic acid strongly inhibits brite adipocyte formation via a cyclooxygenase pathway leading to secretion of PGE2 and PGF2α. Both prostaglandins induce an oscillatory Ca++ signaling coupled to ERK pathway and trigger a decrease in UCP1 expression and in oxygen consumption without altering mitochondriogenesis. In mice fed a standard diet supplemented with ω6 arachidonic acid, PGF2α and PGE2 amounts are increased in subcutaneous white adipose tissue and associated with a decrease in the recruitment of brite adipocytes. Conclusion Our results suggest that dietary excess of ω6 polyunsaturated fatty acids present in Western diets, may also favor obesity by preventing the “browning” process to take place.
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Affiliation(s)
- Didier F Pisani
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France ; CNRS, iBV, UMR 7277, 06100 Nice, France ; Inserm, iBV, U1091, 06100 Nice, France
| | - Rayane A Ghandour
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France ; CNRS, iBV, UMR 7277, 06100 Nice, France ; Inserm, iBV, U1091, 06100 Nice, France
| | - Guillaume E Beranger
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France ; CNRS, iBV, UMR 7277, 06100 Nice, France ; Inserm, iBV, U1091, 06100 Nice, France
| | - Pauline Le Faouder
- Lipidomic Core Facility, Metatoul Platform, France ; INSERM, UMR1048, Obesity Research Laboratory, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France ; University of Toulouse, UMR1048, Paul Sabatier University, Toulouse, France
| | - Jean-Claude Chambard
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France ; CNRS, iBV, UMR 7277, 06100 Nice, France ; Inserm, iBV, U1091, 06100 Nice, France
| | - Maude Giroud
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France ; CNRS, iBV, UMR 7277, 06100 Nice, France ; Inserm, iBV, U1091, 06100 Nice, France
| | - Alexandros Vegiopoulos
- Joint Division Molecular Metabolic Control, Alliance and Network Aging Research, German Cancer Research Center (DKFZ), Center for Molecular Biology (ZMBH) and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Mansour Djedaini
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France ; CNRS, iBV, UMR 7277, 06100 Nice, France ; Inserm, iBV, U1091, 06100 Nice, France
| | - Justine Bertrand-Michel
- Lipidomic Core Facility, Metatoul Platform, France ; INSERM, UMR1048, Obesity Research Laboratory, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France ; University of Toulouse, UMR1048, Paul Sabatier University, Toulouse, France
| | - Michel Tauc
- Univ. Nice Sophia Antipolis, LP2M, UMR 7370, 06100 Nice, France ; UMR 7370, CNRS-LP2M, 06100 Nice, France
| | - Stephan Herzig
- Joint Division Molecular Metabolic Control, Alliance and Network Aging Research, German Cancer Research Center (DKFZ), Center for Molecular Biology (ZMBH) and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Dominique Langin
- INSERM, UMR1048, Obesity Research Laboratory, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France ; University of Toulouse, UMR1048, Paul Sabatier University, Toulouse, France ; Toulouse University Hospitals, Department of Clinical Biochemistry, Toulouse, France
| | - Gérard Ailhaud
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France ; CNRS, iBV, UMR 7277, 06100 Nice, France ; Inserm, iBV, U1091, 06100 Nice, France
| | - Christophe Duranton
- Univ. Nice Sophia Antipolis, LP2M, UMR 7370, 06100 Nice, France ; UMR 7370, CNRS-LP2M, 06100 Nice, France
| | - Ez-Zoubir Amri
- Univ. Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France ; CNRS, iBV, UMR 7277, 06100 Nice, France ; Inserm, iBV, U1091, 06100 Nice, France
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Beranger GE, Pisani DF, Castel J, Djedaini M, Battaglia S, Amiaud J, Boukhechba F, Ailhaud G, Michiels JF, Heymann D, Luquet S, Amri EZ. Oxytocin reverses ovariectomy-induced osteopenia and body fat gain. Endocrinology 2014; 155:1340-52. [PMID: 24506069 DOI: 10.1210/en.2013-1688] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [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: 12/21/2022]
Abstract
Osteoporosis and overweight/obesity constitute major worldwide public health burdens that are associated with aging. A high proportion of women develop osteoporosis and increased intraabdominal adiposity after menopause. which leads to bone fractures and metabolic disorders. There is no efficient treatment without major side effects for these 2 diseases. We previously showed that the administration of oxytocin (OT) normalizes ovariectomy-induced osteopenia and bone marrow adiposity in mice. Ovariectomized mice, used as an animal model mimicking menopause, were treated with OT or vehicle. Trabecular bone parameters and fat mass were analyzed using micro-computed tomography. Herein, we show that this effect on trabecular bone parameters was mediated through the restoration of osteoblast/osteoclast cross talk via the receptor activator of nuclear factor-κB ligand /osteoprotegerin axis. Moreover, the daily administration of OT normalized body weight and intraabdominal fat depots in ovariectomized mice. Intraabdominal fat mass is more sensitive to OT that sc fat depots, and this inhibitory effect is mediated through inhibition of adipocyte precursor's differentiation with a tendency to lower adipocyte size. OT treatment did not affect food intake, locomotors activity, or energy expenditure, but it did promote a shift in fuel utilization favoring lipid oxidation. In addition, the decrease in fat mass resulted from the inhibition of the adipose precursor's differentiation. Thus, OT constitutes an effective strategy for targeting osteopenia, overweight, and fat mass redistribution without any detrimental effects in a mouse model mimicking the menopause.
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Affiliation(s)
- Guillaume E Beranger
- University of Nice Sophia Antipolis (G.E.B., D.F.P., M.D., G.A., E.-Z.A.) and Centre National de la Recherche Scientifique (CNRS) (G.B., D.F.P., M.D., G.A., E.-Z.A.), Institut de Biologie Valrose (iBV), Unite Mixte de Recherché (UMR) 7277, 06100 Nice, France; Institut National de la Sante et de la Recherche Medicale (INSERM) (G.E.B., D.F.P., M.D., G.A., E.-Z.A.), iBV, U1091, 06100 Nice, France; University of Paris Diderot (J.C., S.L.), Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR 8251, CNRS, F-75205 Paris, France; University of Nantes (S.B., J.A., D.H.), INSERM, UMR 957, Nantes, Equipe Labellisée Ligue Contre le Cancer 2012, France; Graftys SA (F.B.), Aix-en-Provence, France; University of Nice Sophia Antipolis (J.-F.M.), Unite de Formation et de Recherche Médecine, Nice, France F-06189; and Anatomopathology Service (J.-F.M.), Pasteur Hospital, Centre Hospitalier Universitaire de Nice, Nice, France
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43
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Roux C, Pisani DF, Yahia HB, Djedaini M, Beranger GE, Chambard JC, Ambrosetti D, Michiels JF, Breuil V, Ailhaud G, Euller-Ziegler L, Amri EZ. Chondrogenic potential of stem cells derived from adipose tissue: a powerful pharmacological tool. Biochem Biophys Res Commun 2013; 440:786-91. [PMID: 24134848 DOI: 10.1016/j.bbrc.2013.10.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [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: 09/26/2013] [Accepted: 10/04/2013] [Indexed: 12/22/2022]
Abstract
Chondrogenesis has been widely investigated in vitro using bone marrow-derived mesenchymal stromal cells (BM-MSCs) or primary chondrocytes. However, their use raises some issues partially circumvented by the availability of Adipose tissue-derived MSCs. Herein; we characterized the chondrogenic potential of human Multipotent Adipose-Derived Stem (hMADS) cells, and their potential use as pharmacological tool. hMADS cells are able to synthesize matrix proteins including COMP, Aggrecan and type II Collagen. Furthermore, hMADS cells express BMP receptors in a similar manner to BM-MSC, and BMP6 treatment of differentiated cells prevents expression of the hypertrophic marker type X Collagen. We tested whether IL-1β and nicotine could impact chondrocyte differentiation. As expected, IL-1β induced ADAMTS-4 gene expression and modulated negatively chondrogenesis while these effects were reverted in the presence of the IL-1 receptor antagonist. Nicotine, at concentrations similar to those observed in blood of smokers, exhibited a dose dependent increase of Aggrecan expression, suggesting an unexpected protective effect of the drug under these conditions. Therefore, hMADS cells represent a valuable tool for the analysis of in vitro chondrocyte differentiation and to screen for potentially interesting pharmacological drugs.
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Affiliation(s)
- Christian Roux
- University Nice Sophia Antipolis, iBV, UMR 7277, 06100 Nice, France; CNRS, iBV, UMR 7277, 06100 Nice, France; Inserm, iBV, U1091, 06100 Nice, France; Service de Rhumatologie, Hospital l'Archet 1 CHU, 06200 Nice, France
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44
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Beranger GE, Karbiener M, Barquissau V, Pisani DF, Scheideler M, Langin D, Amri EZ. In vitro brown and “brite”/“beige” adipogenesis: Human cellular models and molecular aspects. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1831:905-14. [DOI: 10.1016/j.bbalip.2012.11.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 10/31/2012] [Accepted: 11/02/2012] [Indexed: 11/30/2022]
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Darini CY, Pisani DF, Hofman P, Pedeutour F, Sudaka I, Chomienne C, Dani C, Ladoux A. Self-renewal gene tracking to identify tumour-initiating cells associated with metastatic potential. Oncogene 2011; 31:2438-49. [PMID: 21927026 DOI: 10.1038/onc.2011.421] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Tumour-initiating cells (TICs) are rare cancer cells isolated from tumours of different origins including high-grade tumours that sustain neoplasic progression and development of metastatic disease. They harbour deregulated stem cells pathways and exhibit an unchecked ability to self-renew, a property essential for tumour progression. Among the essential factors maintaining embryonic stem (ES) cells properties, OCT-4 (also known as POU5F1) has been detected in tumours of different origins. Although ectopic expression results in dysplasic growth restricted to epithelial tissues, overexpression expands the proportion of immature cells in teratomas. However, OCT-4-expressing cells have not been purified from spontaneously occurring tumours, thus information concerning their properties is rather scant. Here, using p53-/- mice expressing green fluorescent protein and the puromycin resistance gene under the control of the Oct-4 promoter, we show that OCT-4 is expressed in 5% onwards of the undifferentiated tumour cell populations derived from different organs. OCT-4 expression was low as compared with ES cells, but was associated with a 'stemness' signature and expression of the chemokine receptor CXCR4. These cells displayed cancer stem cell features, including increased self-renewal and differentiation ability in vitro and in vivo. They not only formed allografts containing immature bone regions but also disseminated into different organs, including lung, liver and bone. Experiments based on RNA interference revealed that Oct-4 expression drives both their engraftment and metastasis formation. This work points out the crucial contribution of Oct-4-expressing TICs in the hierarchical organization of the malignant potential, leading to metastasis formation. Consequently, it provides an appropriate model to develop novel therapies aiming to strike down TICs by targeting self-renewal genes, therefore efficient to reduce tumour growth and metastatic disease.
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Affiliation(s)
- C Y Darini
- CNRS, Institute of Biology Development and Cancer, University of Nice Sophia-Antipolis, 28 Avenue de Valombrose, Nice Cedex 2, France
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46
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Crottès D, Martial S, Rapetti-Mauss R, Pisani DF, Loriol C, Pellissier B, Martin P, Chevet E, Borgese F, Soriani O. Sig1R protein regulates hERG channel expression through a post-translational mechanism in leukemic cells. J Biol Chem 2011; 286:27947-58. [PMID: 21680736 PMCID: PMC3151040 DOI: 10.1074/jbc.m111.226738] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 06/15/2011] [Indexed: 12/18/2022] Open
Abstract
Sig1R (Sigma-1receptor) is a 25-kDa protein structurally unrelated to other mammalian proteins. Sig1R is present in brain, liver, and heart and is overexpressed in cancer cells. Studies using exogenous sigma ligands have shown that Sig1R interacts with a variety of ion channels, but its intrinsic function and mechanism of action remain unclear. The human ether-à-gogo related gene (hERG) encodes a cardiac channel that is also abnormally expressed in many primary human cancers, potentiating tumor progression through the modulation of extracellular matrix adhesive interactions. We show herein that sigma ligands inhibit hERG current density and cell adhesion to fibronectin in K562 myeloid leukemia cells. Heterologous expression in Xenopus oocytes demonstrates that Sig1R potentiates hERG current by stimulating channel subunit biosynthesis. Silencing Sig1R in leukemic K562 cells depresses hERG current density and cell adhesion to fibronectin by reducing hERG membrane expression. In K562 cells, Sig1R silencing does not modify hERG mRNA contents but reduces hERG mature form densities. In HEK cells expressing hERG and Sig1R, both proteins co-immunoprecipitate, demonstrating a physical association. Finally, Sig1R expression enhances both channel protein maturation and stability. Altogether, these results demonstrate for the first time that Sig1R controls ion channel expression through the regulation of subunit trafficking activity.
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Affiliation(s)
- David Crottès
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Sonia Martial
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Raphaël Rapetti-Mauss
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Didier F. Pisani
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Céline Loriol
- the Institut de Neuromedecine Moléculaire/Institut de Pharmacologie Moléculaire et Cellulaire CNRS, 06560 Valbonne, France, and
| | - Bernard Pellissier
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Patrick Martin
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Eric Chevet
- INSERM U1053, Université Bordeaux 2, 33076 Bordeaux, France
| | - Franck Borgese
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Olivier Soriani
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
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47
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Pisani DF, Clement N, Loubat A, Plaisant M, Sacconi S, Kurzenne JY, Desnuelle C, Dani C, Dechesne CA. Hierarchization of myogenic and adipogenic progenitors within human skeletal muscle. Stem Cells 2011; 28:2182-94. [PMID: 20936706 DOI: 10.1002/stem.537] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Skeletal muscle cells constitute a heterogeneous population that maintains muscle integrity through a high myogenic regenerative capacity. More unexpectedly, this population is also endowed with an adipogenic potential, even in humans, and intramuscular adipocytes have been found to be present in several disorders. We tested the distribution of myogenic and adipogenic commitments in human muscle-derived cells to decipher the cellular basis of the myoadipogenic balance. Clonal analysis showed that adipogenic progenitors can be separated from myogenic progenitors and, interestingly, from myoadipogenic bipotent progenitors. These progenitors were isolated in the CD34(+) population on the basis of the expression of CD56 and CD15 cell surface markers. In vivo, these different cell types have been found in the interstitial compartment of human muscle. In vitro, we show that the proliferation of bipotent myoadipogenic CD56(+)CD15(+) progenitors gives rise to myogenic CD56(+)CD15(-) progenitors and adipogenic CD56(-)CD15(+) progenitors. A cellular hierarchy of muscle and fat progenitors thus occurs within human muscle. These results provide cellular bases for adipogenic differentiation in human skeletal muscle, which may explain the fat development encountered in different muscle pathological situations.
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Affiliation(s)
- Didier F Pisani
- Institute of Developmental Biology and Cancer, University of Nice Sophia-Antipolis, CNRS, UMR6543, Nice, France
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48
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Pisani DF, Djedaini M, Beranger GE, Elabd C, Scheideler M, Ailhaud G, Amri EZ. Differentiation of Human Adipose-Derived Stem Cells into "Brite" (Brown-in-White) Adipocytes. Front Endocrinol (Lausanne) 2011; 2:87. [PMID: 22654831 PMCID: PMC3356055 DOI: 10.3389/fendo.2011.00087] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [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: 07/29/2011] [Accepted: 11/12/2011] [Indexed: 12/24/2022] Open
Abstract
It is well established now that adult humans possess active brown adipose tissue (BAT) which represents a potential pharmacological target to combat obesity and associated diseases. Moreover thermogenic brown-like adipocytes ("brite adipocytes") appear also in mouse white adipose tissue (WAT) upon β3-adrenergic stimulation. We had previously shown that human multipotent adipose-derived stem cells (hMADS) are able to differentiate into cells which exhibit the key properties of human white adipocytes, and then to convert into functional brown adipocytes upon PPARγ activation. In light of a wealth of data indicating that thermogenic adipocytes from BAT and WAT have a distinct cellular origin, we have characterized at the molecular level UCP1 positive hMADS adipocytes from both sexes as brite adipocytes. Conversion of white to brown hMADS adipocytes is dependent on PPARγ activation with rosiglitazone as the most potent agonist and is inhibited by a PPARγ antagonist. In contrast to mouse cellular models, hMADS cells conversion into brown adipocytes is weakly induced by BMP7 treatment and not modulated by activation of the Hedgehog pathway. So far no primary or clonal precursor cells of human brown adipocytes have been obtained that can be used as a tool to develop therapeutic drugs and to gain further insights into the molecular mechanisms of brown adipogenesis in humans. Thus hMADS cells represent a suitable human cell model to delineate the formation and/or the uncoupling capacity of brown/brite adipocytes that could help to dissipate caloric excess intake among individuals.
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Affiliation(s)
- Didier F. Pisani
- Institut de Biologie du Développement et Cancer, Université de Nice Sophia-AntipolisNice, France
- CNRS UMR 6543, Institut de Biologie du Développement et CancerNice, France
| | - Mansour Djedaini
- Institut de Biologie du Développement et Cancer, Université de Nice Sophia-AntipolisNice, France
- CNRS UMR 6543, Institut de Biologie du Développement et CancerNice, France
| | - Guillaume E. Beranger
- Institut de Biologie du Développement et Cancer, Université de Nice Sophia-AntipolisNice, France
- CNRS UMR 6543, Institut de Biologie du Développement et CancerNice, France
| | - Christian Elabd
- Institut de Biologie du Développement et Cancer, Université de Nice Sophia-AntipolisNice, France
- CNRS UMR 6543, Institut de Biologie du Développement et CancerNice, France
- Department of Bioengineering, Institute for Quantitative Biosciences, University of California BerkeleyBerkeley, CA, USA
| | - Marcel Scheideler
- Institute for Genomics and Bioinformatics, Graz University of TechnologyGraz, Austria
| | - Gérard Ailhaud
- Institut de Biologie du Développement et Cancer, Université de Nice Sophia-AntipolisNice, France
- CNRS UMR 6543, Institut de Biologie du Développement et CancerNice, France
| | - Ez-Zoubir Amri
- Institut de Biologie du Développement et Cancer, Université de Nice Sophia-AntipolisNice, France
- CNRS UMR 6543, Institut de Biologie du Développement et CancerNice, France
- *Correspondence: Ez-Zoubir Amri, CNRS UMR 6543, Institut de Biologie du Développement et Cancer, Université de Nice Sophia-Antipolis, 28 Avenue de Valombrose 06107, Nice Cedex 2, France. e-mail:
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Pisani DF, Dechesne CA, Sacconi S, Delplace S, Belmonte N, Cochet O, Clement N, Wdziekonski B, Villageois AP, Butori C, Bagnis C, Di Santo JP, Kurzenne JY, Desnuelle C, Dani C. Isolation of a highly myogenic CD34-negative subset of human skeletal muscle cells free of adipogenic potential. Stem Cells 2010; 28:753-64. [PMID: 20135684 DOI: 10.1002/stem.317] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The differentiation of multipotent cells into undesirable lineages is a significant risk factor when performing cell therapy. In muscular diseases, myofiber loss can be associated with progressive fat accumulation that is one of the primary factors leading to decline of muscular strength. Therefore, to avoid any contribution of injected multipotent cells to fat deposition, we have searched for a highly myogenic but nonadipogenic muscle-derived cell population. We show that the myogenic marker CD56, which is the gold standard for myoblast-based therapy, was unable to separate muscle cells into myogenic and adipogenic fractions. Conversely, using the stem cell marker CD34, we were able to sort two distinct populations, CD34(+) and CD34(-), which have been thoroughly characterized in vitro and in vivo using an immunodeficient Rag2(-/-)gamma(c) (-/-) mouse model of muscle regeneration with or without adipose deposition. Our results demonstrate that both populations have equivalent capacities for in vitro amplification. The CD34(+) cells and CD34(-) cells exhibit equivalent myogenic potential, but only the CD34(-) population fails to differentiate into adipocytes in vitro and in vivo after transplantation into regenerative fat muscle. These data indicate that the muscle-derived cells constitute a heterogeneous population of cells with various differentiation potentials. The simple CD34 sorting allows isolation of myogenic cells with no adipogenic potential and therefore could be of high interest for cell therapy when fat is accumulated in diseased muscle.
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Affiliation(s)
- Didier F Pisani
- Institute of Developmental Biology and Cancer, Faculty of Medicine, University of Nice Sophia-Antipolis, CNRS, Nice, France
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50
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Clavel S, Siffroi-Fernandez S, Coldefy AS, Boulukos K, Pisani DF, Dérijard B. Regulation of the intracellular localization of Foxo3a by stress-activated protein kinase signaling pathways in skeletal muscle cells. Mol Cell Biol 2010; 30:470-80. [PMID: 19917721 PMCID: PMC2798458 DOI: 10.1128/mcb.00666-09] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2009] [Revised: 06/27/2009] [Accepted: 10/21/2009] [Indexed: 12/13/2022] Open
Abstract
Muscle atrophy is a debilitating process associated with many chronic wasting diseases, like cancer, diabetes, sepsis, and renal failure. Rapid loss of muscle mass occurs mainly through the activation of protein breakdown by the ubiquitin proteasome pathway. Foxo3a transcription factor is critical for muscle atrophy, since it activates the expression of ubiquitin ligase Atrogin-1. In several models of atrophy, inhibition of the phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway induces nuclear import of Foxo3a through an Akt-dependent process. This study aimed to identify signaling pathways involved in the control of Foxo3a nuclear translocation in muscle cells. We observed that after nuclear import of Foxo3a by PI3K/Akt pathway inhibition, activation of stress-activated protein kinase (SAPK) pathways induced nuclear export of Foxo3a through CRM1. This mechanism involved the c-Jun NH(2)-terminal kinase (JNK) signaling pathway and was independent of Akt. Likewise, we showed that inhibition of p38 induced a massive nuclear relocalization of Foxo3a. Our results thus suggest that SAPKs are involved in the control of Foxo3a nucleocytoplasmic translocation in C2C12 cells. Moreover, activation of SAPKs decreases the expression of Atrogin-1, and stable C2C12 myotubes, in which the p38 pathway is constitutively activated, present partial protection against atrophy.
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Affiliation(s)
- Stephan Clavel
- LBPSI, Université de Nice-Sophia Antipolis/CNRS, FRE3094, Nice, France, Université de Nice-Sophia Antipolis EA 4319/INSERM ERI-21, Nice, France, Institute of Developmental Biology and Cancer, Université de Nice-Sophia Antipolis, CNRS, UMR6543, Nice, France
| | - Sandrine Siffroi-Fernandez
- LBPSI, Université de Nice-Sophia Antipolis/CNRS, FRE3094, Nice, France, Université de Nice-Sophia Antipolis EA 4319/INSERM ERI-21, Nice, France, Institute of Developmental Biology and Cancer, Université de Nice-Sophia Antipolis, CNRS, UMR6543, Nice, France
| | - Anne Sophie Coldefy
- LBPSI, Université de Nice-Sophia Antipolis/CNRS, FRE3094, Nice, France, Université de Nice-Sophia Antipolis EA 4319/INSERM ERI-21, Nice, France, Institute of Developmental Biology and Cancer, Université de Nice-Sophia Antipolis, CNRS, UMR6543, Nice, France
| | - Kim Boulukos
- LBPSI, Université de Nice-Sophia Antipolis/CNRS, FRE3094, Nice, France, Université de Nice-Sophia Antipolis EA 4319/INSERM ERI-21, Nice, France, Institute of Developmental Biology and Cancer, Université de Nice-Sophia Antipolis, CNRS, UMR6543, Nice, France
| | - Didier F. Pisani
- LBPSI, Université de Nice-Sophia Antipolis/CNRS, FRE3094, Nice, France, Université de Nice-Sophia Antipolis EA 4319/INSERM ERI-21, Nice, France, Institute of Developmental Biology and Cancer, Université de Nice-Sophia Antipolis, CNRS, UMR6543, Nice, France
| | - Benoît Dérijard
- LBPSI, Université de Nice-Sophia Antipolis/CNRS, FRE3094, Nice, France, Université de Nice-Sophia Antipolis EA 4319/INSERM ERI-21, Nice, France, Institute of Developmental Biology and Cancer, Université de Nice-Sophia Antipolis, CNRS, UMR6543, Nice, France
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