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Matak P, Heinis M, Mathieu JRR, Corriden R, Cuvellier S, Delga S, Mounier R, Rouquette A, Raymond J, Lamarque D, Emile JF, Nizet V, Touati E, Peyssonnaux C. Myeloid HIF-1 is protective in Helicobacter pylori-mediated gastritis. J Immunol 2015; 194:3259-66. [PMID: 25710915 DOI: 10.4049/jimmunol.1401260] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Helicobacter pylori infection triggers chronic inflammation of the gastric mucosa that may progress to gastric cancer. The hypoxia-inducible factors (HIFs) are the central mediators of cellular adaptation to low oxygen levels (hypoxia), but they have emerged recently as major transcriptional regulators of immunity and inflammation. No studies have investigated whether H. pylori affects HIF signaling in immune cells and a potential role for HIF in H. pylori-mediated gastritis. HIF-1 and HIF-2 expression was examined in human H. pylori-positive gastritis biopsies. Subsequent experiments were performed in naive and polarized bone marrow-derived macrophages from wild-type (WT) and myeloid HIF-1α-null mice (HIF-1(Δmyel)). WT and HIF-1(Δmyel) mice were inoculated with H. pylori by oral gavage and sacrificed 6 mo postinfection. HIF-1 was specifically expressed in macrophages of human H. pylori-positive gastritis biopsies. Macrophage HIF-1 strongly contributed to the induction of proinflammatory genes (IL-6, IL-1β) and inducible NO synthase in response to H. pylori. HIF-2 expression and markers of M2 macrophage differentiation were decreased in response to H. pylori. HIF-1(Δmyel) mice inoculated with H. pylori for 6 mo presented with a similar bacterial colonization than WT mice but, surprisingly, a global increase of inflammation, leading to a worsening of the gastritis, measured by an increased epithelial cell proliferation. In conclusion, myeloid HIF-1 is protective in H. pylori-mediated gastritis, pointing to the complex counterbalancing roles of innate immune and inflammatory phenotypes in driving this pathology.
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Affiliation(s)
- Pavle Matak
- INSERM, U1016, Institut Cochin, 75014 Paris, France; Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France
| | - Mylène Heinis
- INSERM, U1016, Institut Cochin, 75014 Paris, France; Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France
| | - Jacques R R Mathieu
- INSERM, U1016, Institut Cochin, 75014 Paris, France; Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France
| | - Ross Corriden
- Department of Pediatrics, University of California San Diego, La Jolla, CA 92093
| | - Sylvain Cuvellier
- INSERM, U1016, Institut Cochin, 75014 Paris, France; Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France
| | - Stéphanie Delga
- INSERM, U1016, Institut Cochin, 75014 Paris, France; Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France
| | - Rémi Mounier
- INSERM, U1016, Institut Cochin, 75014 Paris, France; Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France; Centre de Génétique et de Physiologie Moléculaire et Cellulaire, Unité Mixte de Recherche Centre National de la Recherche Scientifique 5534, Université Claude Bernard Lyon 1, Lyon, 69622 Villeurbanne Cedex, France
| | | | | | - Dominique Lamarque
- Equipe d'Accueil 4340, Université de Versailles, and Hôpital Ambroise Paré, Assistance Publique des Hôpitaux de Paris, 92104 Boulogne, France; and
| | - Jean-François Emile
- Equipe d'Accueil 4340, Université de Versailles, and Hôpital Ambroise Paré, Assistance Publique des Hôpitaux de Paris, 92104 Boulogne, France; and
| | - Victor Nizet
- Department of Pediatrics, University of California San Diego, La Jolla, CA 92093
| | | | - Carole Peyssonnaux
- INSERM, U1016, Institut Cochin, 75014 Paris, France; Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France;
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Mathieu JRR, Heinis M, Zumerle S, Delga S, Le Bon A, Peyssonnaux C. Investigating the real role of HIF-1 and HIF-2 in iron recycling by macrophages. Haematologica 2014; 99:e112-4. [PMID: 24727819 DOI: 10.3324/haematol.2013.102319] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Jacques R R Mathieu
- INSERM, U1016, Institut Cochin, Paris CNRS, UMR8104, Paris Université Paris Descartes, Sorbonne Paris Cité, Paris Laboratory of Excellence GR-Ex, Paris, France
| | - Mylène Heinis
- INSERM, U1016, Institut Cochin, Paris CNRS, UMR8104, Paris Université Paris Descartes, Sorbonne Paris Cité, Paris Laboratory of Excellence GR-Ex, Paris, France
| | - Sara Zumerle
- INSERM, U1016, Institut Cochin, Paris CNRS, UMR8104, Paris Université Paris Descartes, Sorbonne Paris Cité, Paris Laboratory of Excellence GR-Ex, Paris, France
| | - Stéphanie Delga
- INSERM, U1016, Institut Cochin, Paris CNRS, UMR8104, Paris Université Paris Descartes, Sorbonne Paris Cité, Paris Laboratory of Excellence GR-Ex, Paris, France
| | - Agnès Le Bon
- INSERM, U1016, Institut Cochin, Paris CNRS, UMR8104, Paris Université Paris Descartes, Sorbonne Paris Cité, Paris
| | - Carole Peyssonnaux
- INSERM, U1016, Institut Cochin, Paris CNRS, UMR8104, Paris Université Paris Descartes, Sorbonne Paris Cité, Paris Laboratory of Excellence GR-Ex, Paris, France
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Abstract
During early embryogenesis, the pancreas shows a paucity of blood flow, and oxygen tension, the partial pressure of oxygen (pO(2)), is low. Later, the blood flow increases as β-cell differentiation occurs. We have previously reported that pO(2) controls β-cell development in rats. Here, we checked that hypoxia inducible factor 1α (HIF1α) is essential for this control. First, we demonstrated that the effect of pO(2) on β-cell differentiation in vitro was independent of epitheliomesenchymal interactions and that neither oxidative nor energetic stress occurred. Second, the effect of pO(2) on pancreas development was shown to be conserved among species, since increasing pO(2) to 21 vs. 3% also induced β-cell differentiation in mouse (7-fold, P<0.001) and human fetal pancreas. Third, the effect of hypoxia was mediated by HIF1α, since the addition of an HIF1α inhibitor at 3% O(2) increased the number of NGN3-expressing progenitors as compared to nontreated controls (9.2-fold, P<0.001). In contrast, when we stabilized HIF1α by deleting ex vivo the gene encoding pVHL in E13.5 pancreas from Vhl floxed mice, Ngn3 expression and β-cell development decreased in such Vhl-deleted pancreas compared to controls (2.5 fold, P<0.05, and 6.6-fold, P<0.001, respectively). Taken together, these data demonstrate that HIF1α exerts a negative control over β-cell differentiation.
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Affiliation(s)
- Mylène Heinis
- Institut National de Santé et de Recherche Médicale (INSERM) U845, Research Center Growth and Signalling, Université Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine, Paris, France
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Heinis M, Simon M, Duvillié B. New insights into endocrine pancreatic development: the role of environmental factors. Horm Res Paediatr 2010; 74:77-82. [PMID: 20551619 PMCID: PMC3202916 DOI: 10.1159/000314894] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Accepted: 05/05/2010] [Indexed: 01/06/2023] Open
Abstract
The pancreas is a mixed gland that contains endocrine and exocrine components. Within the pancreatic islets, beta cells produce insulin and control the glycemia. Their deficiency leads to diabetes and several potential complications. In the last decade, numerous studies have focused on pancreas development. The objective was to characterize the cellular and molecular factors that control the differentiation of endocrine and exocrine cell types. Investigation of the role of transcription factors by using genetic approaches led to the discovery of key molecules that are expressed both in rodents and humans. Some of them are ubiquitous, and some others are specifically involved in endocrine or exocrine specification. In addition to these intrinsic factors, recent studies have focused on the role of environmental factors. In the present review, we describe the roles of nutrients and oxygen in the embryonic pancreas. Interestingly, these extrinsic parameters can interfere with beta-cell differentiation and function. Altogether, these data should help to generate beta cells in vitro and define strategies for a cell-based therapy of type 1 diabetes.
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Affiliation(s)
- M. Heinis
- INSERM U845, Research Center Growth and Signalling, Université Paris Descartes, Faculté de Médecine, Hôpital Necker, Paris, France
| | - M.T. Simon
- INSERM U845, Research Center Growth and Signalling, Université Paris Descartes, Faculté de Médecine, Hôpital Necker, Paris, France
| | - B. Duvillié
- *Dr. Bertrand Duvillié, U845 INSERM, Faculty Necker, 156, rue de Vaugirard, FR–75015 Paris (France), Tel. +33 1 40 61 55 71, Fax +33 1 43 06 04 43, E-Mail
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Heinis M, Simon MT, Ilc K, Mazure NM, Pouysségur J, Scharfmann R, Duvillié B. Oxygen tension regulates pancreatic beta-cell differentiation through hypoxia-inducible factor 1alpha. Diabetes 2010; 59:662-9. [PMID: 20009089 PMCID: PMC2828660 DOI: 10.2337/db09-0891] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [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] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Recent evidence indicates that low oxygen tension (pO2) or hypoxia controls the differentiation of several cell types during development. Variations of pO2 are mediated through the hypoxia-inducible factor (HIF), a crucial mediator of the adaptative response of cells to hypoxia. The aim of this study was to investigate the role of pO2 in beta-cell differentiation. RESEARCH DESIGN AND METHODS We analyzed the capacity of beta-cell differentiation in the rat embryonic pancreas using two in vitro assays. Pancreata were cultured either in collagen or on a filter at the air/liquid interface with various pO2. An inhibitor of the prolyl hydroxylases, dimethyloxaloylglycine (DMOG), was used to stabilize HIF1alpha protein in normoxia. RESULTS When cultured in collagen, embryonic pancreatic cells were hypoxic and expressed HIF1alpha and rare beta-cells differentiated. In pancreata cultured on filter (normoxia), HIF1alpha expression decreased and numerous beta-cells developed. During pancreas development, HIF1alpha levels were elevated at early stages and decreased with time. To determine the effect of pO2 on beta-cell differentiation, pancreata were cultured in collagen at increasing concentrations of O2. Such conditions repressed HIF1alpha expression, fostered development of Ngn3-positive endocrine progenitors, and induced beta-cell differentiation by O2 in a dose-dependent manner. By contrast, forced expression of HIF1alpha in normoxia using DMOG repressed Ngn3 expression and blocked beta-cell development. Finally, hypoxia requires hairy and enhancer of split (HES)1 expression to repress beta-cell differentiation. CONCLUSIONS These data demonstrate that beta-cell differentiation is controlled by pO2 through HIF1alpha. Modifying pO2 should now be tested in protocols aiming to differentiate beta-cells from embryonic stem cells.
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Affiliation(s)
- Mylène Heinis
- INSERM U845, Research Center Growth and Signalling, Université Paris Descartes, Hôpital Necker, Paris, France
| | - Marie-Thérèse Simon
- INSERM U845, Research Center Growth and Signalling, Université Paris Descartes, Hôpital Necker, Paris, France
| | - Karine Ilc
- Institute of Developmental Biology and Cancer Research, University of Nice, Nice, France
| | - Nathalie M. Mazure
- Institute of Developmental Biology and Cancer Research, University of Nice, Nice, France
| | - Jacques Pouysségur
- Institute of Developmental Biology and Cancer Research, University of Nice, Nice, France
| | - Raphael Scharfmann
- INSERM U845, Research Center Growth and Signalling, Université Paris Descartes, Hôpital Necker, Paris, France
| | - Bertrand Duvillié
- INSERM U845, Research Center Growth and Signalling, Université Paris Descartes, Hôpital Necker, Paris, France
- Corresponding author: Bertrand Duvillié,
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Heinis M, Duvillié B. [Stem cells in diabetes treatment]. Ann Endocrinol (Paris) 2008; 69:143-6. [PMID: 18420179 DOI: 10.1016/j.ando.2008.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- M Heinis
- INSERM U845, faculté Necker-René-Descartes, 156 rue de Vaugirard, Paris, France
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Paruch S, Heinis M, Lemay J, Hoeffel G, Marañón C, Hosmalin A, Périanin A. CCR5 signaling through phospholipase D involves p44/42 MAP-kinases and promotes HIV-1 LTR-directed gene expression. FASEB J 2007; 21:4038-46. [PMID: 17627030 DOI: 10.1096/fj.06-7325com] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The chemokine receptor CCR5 plays an important role as an entry gate for the human immunodeficiency virus-1 (HIV-1) and for viral postentry events. Among signal transducers used by chemoattractant receptors, the phosphatidylcholine-specific phospholipase D (PLD) produces large amounts of second messengers in most cell types. However, the relevance of PLD isoforms to CCR5 signaling and HIV-1 infection process remains unexplored. We show here that CCR5 activation by MIP-1beta in HeLa-MAGI cells triggered a rapid and substantial PLD activity, as assessed by mass choline production. This activity required the activation of ERK1/2-MAP kinases and involved both PLD1 and PLD2. MIP-1beta also promoted the activation of an HIV-1 long terminal repeat (LTR) by the transactivator Tat in HeLa P4.2 cells through a process involving ERK1/2. Expression of wild-type and catalytically inactive PLDs dramatically boosted and inhibited the LTR activation, respectively, without altering Tat expression. Wild-type and inactive PLDs also respectively potentiated and inhibited HIV-1(BAL) replication in MAGI cells. Finally, in monocytic THP-1 cells, antisense oligonucleotides to both PLDs dramatically inhibited the HIV-1 replication. Thus, PLD is activated downstream of ERK1/2 upon CCR5 activation and plays a major role in promoting HIV-1 LTR transactivation and virus replication, which may open novel perspectives to anti-HIV-1 strategies.
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Affiliation(s)
- Sylvain Paruch
- Institut Cochin, Université Paris Descartes, CNRS (UMR 8104), Paris, France
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Abstract
Over the last decades, pancreas development has been widely investigated. Understanding the mechanisms that control beta-cell development should allow progress towards the regeneration of these cells in humans. Particularly, it is well established that inductive signals from the mesenchyme play an essential role in the proliferation of precursor cells. In the present review, we focused on the roles of fibroblast growth factors (FGFs) in pancreas development. Improvements of the in vivo and in vitro techniques were used to define the function of FGF10. Experiments on FGF10 knockout mice showed that FGF10 is required for the proliferation of precursor cells and the pancreas development. Several laboratories used different in vitro techniques to study the effect of FGF10 on beta-cell differentiation. These methods of investigation are described here. In our experiments, pancreases were placed at the air-liquid interface to define the precise mechanism of action of FGF10. We showed that FGF10 positively regulates the beta-cell mass by increasing the proliferation of the early precursors and by extending the window of expression of the endocrine precursor marker Ngn3. These data are compared with studies performed with other culture systems. Finally, the role of other FGFs is discussed.
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Affiliation(s)
- Bertrand Duvillié
- INSERM U845, Necker Hospital, Faculty of Medicine, University Paris-Descartes, Paris , France
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