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Chneiweiss H, Dubart-Kupperschmitt A, Duclos-Vallée JC, Clément B, Flacher V, Galzi JL, Gidrol X, Goureau O, Guasch G, Haiech J, Lemaitre C, Mahé MM, Martin S, Poulain L, Sebastiani C, Vergnolle N, Yates F. [For a good understanding and use of the term "organoids"]. Med Sci (Paris) 2023; 39:876-878. [PMID: 38018932 DOI: 10.1051/medsci/2023155] [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] [Indexed: 11/30/2023] Open
Abstract
Depuis une dizaine d’années, des progrès considérables ont été réalisés concernant les conditions qui permettent à des cellules de s’auto-organiser dans l’espace comme elles le font lors des phases précoces du développement embryonnaire ou dans certains tissus adultes. On nomme ainsi « organoïdes » des structures en trois dimensions complexes, organisées et intégrant plusieurs types cellulaires, qui peuvent reproduire in vitro certaines fonctions d’un organe. Toutefois, ces organoïdes ne peuvent actuellement reproduire à l’identique une architecture anatomique et fonctionnelle complète. Bien qu’utilisé pour des raisons de simplification pour la communication, en particulier dans la presse généraliste, il est donc abusif d’utiliser le terme « mini-organes » pour décrire ces structures.
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Affiliation(s)
| | | | | | - Bruno Clément
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | - Vincent Flacher
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | - Jean-Luc Galzi
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | - Xavier Gidrol
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | - Olivier Goureau
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | | | - Jacques Haiech
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | | | - Maxime M Mahé
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | - Sophie Martin
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | - Laurent Poulain
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
| | | | | | - Frank Yates
- Groupement de recherche CNRS « Organoïdes » (GDR2102)1, France
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2
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Poydenot F, Lebreton A, Haiech J, Andreotti B. At the crossroads of epidemiology and biology: Bridging the gap between SARS-CoV-2 viral strain properties and epidemic wave characteristics. Biochimie 2023; 213:54-65. [PMID: 36931337 PMCID: PMC10017177 DOI: 10.1016/j.biochi.2023.03.006] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 02/08/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
The COVID-19 pandemic has given rise to numerous articles from different scientific fields (epidemiology, virology, immunology, airflow physics …) without any effort to link these different insights. In this review, we aim to establish relationships between epidemiological data and the characteristics of the virus strain responsible for the epidemic wave concerned. We have carried out this study on the Wuhan, Alpha, Delta and Omicron strains allowing us to illustrate the evolution of the relationships we have highlighted according to these different viral strains. We addressed the following questions. 1) How can the mean infectious dose (one quantum, by definition in epidemiology) be measured and expressed as an amount of viral RNA molecules (in genome units, GU) or as a number of replicative viral particles (in plaque-forming units, PFU)? 2) How many infectious quanta are exhaled by an infected person per unit of time? 3) How many infectious quanta are exhaled, on average, integrated over the whole contagious period? 4) How do these quantities relate to the epidemic reproduction rate R as measured in epidemiology, and to the viral load, as measured by molecular biological methods? 5) How has the infectious dose evolved with the different strains of SARS-CoV-2? We make use of state-of-the-art modelling, reviewed and explained in the appendix of the article (Supplemental Information, SI), to answer these questions using data from the literature in both epidemiology and virology. We have considered the modification of these relationships according to the vaccination status of the population.
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Affiliation(s)
- Florian Poydenot
- Laboratoire de Physique de l'Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université de Paris, 75005, Paris, France
| | - Alice Lebreton
- Institut de Biologie de l'ENS (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, 75005, Paris, France; INRAE, Micalis Institute, 78350, Jouy-en-Josas, France
| | - Jacques Haiech
- CNRS UMR7242 BSC ESBS, 300 Bd Sébastien Brant, CS 10413, 67412, Illkirch cedex, France.
| | - Bruno Andreotti
- Laboratoire de Physique de l'Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université de Paris, 75005, Paris, France
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3
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Poydenot F, Abdourahamane I, Caplain E, Der S, Haiech J, Jallon A, Khoutami I, Loucif A, Marinov E, Andreotti B. Risk assessment for long- and short-range airborne transmission of SARS-CoV-2, indoors and outdoors. PNAS Nexus 2022; 1:pgac223. [PMID: 36712338 PMCID: PMC9802175 DOI: 10.1093/pnasnexus/pgac223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/30/2022] [Indexed: 11/17/2022]
Abstract
Preventive measures to reduce infection are needed to combat the COVID-19 pandemic and prepare for a possible endemic phase. Current prophylactic vaccines are highly effective to prevent disease but lose their ability to reduce viral transmission as viral evolution leads to increasing immune escape. Long-term proactive public health policies must therefore complement vaccination with available nonpharmaceutical interventions aiming to reduce the viral transmission risk in public spaces. Here, we revisit the quantitative assessment of airborne transmission risk, considering asymptotic limits that considerably simplify its expression. We show that the aerosol transmission risk is the product of three factors: a biological factor that depends on the viral strain, a hydrodynamical factor defined as the ratio of concentration in viral particles between inhaled and exhaled air, and a face mask filtering factor. The short-range contribution to the risk, present both indoors and outdoors, is related to the turbulent dispersion of exhaled aerosols by air drafts and by convection (indoors), or by the wind (outdoors). We show experimentally that airborne droplets and CO2 molecules present the same dispersion. As a consequence, the dilution factor, and therefore the risk, can be measured quantitatively using the CO2 concentration, regardless of the room volume, the flow rate of fresh air, and the occupancy. We show that the dispersion cone leads to a concentration in viral particles, and therefore a short-range transmission risk, inversely proportional to the squared distance to an infected person and to the flow velocity. The aerosolization criterion derived as an intermediate result, which compares the Stokes relaxation time to the Lagrangian time-scale, may find application for a broad class of aerosol-borne pathogens and pollutants.
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Affiliation(s)
- Florian Poydenot
- Laboratoire de Physique de l’Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université Paris Cité, 24 rue Lhomond, 75005 Paris, France
| | - Ismael Abdourahamane
- Laboratoire de Physique de l’Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université Paris Cité, 24 rue Lhomond, 75005 Paris, France
| | - Elsa Caplain
- Laboratoire de Physique de l’Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université Paris Cité, 24 rue Lhomond, 75005 Paris, France
| | - Samuel Der
- Laboratoire de Physique de l’Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université Paris Cité, 24 rue Lhomond, 75005 Paris, France
| | - Jacques Haiech
- Cogitamus Laboratory and CNRS UMR 7242 BSC, 300 Bd Sébastien Brant, CS 10413, 67412 Illkirch Cedex, France
| | - Antoine Jallon
- Laboratoire de Physique de l’Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université Paris Cité, 24 rue Lhomond, 75005 Paris, France
| | - Inés Khoutami
- Laboratoire de Physique de l’Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université Paris Cité, 24 rue Lhomond, 75005 Paris, France
| | - Amir Loucif
- Laboratoire de Physique de l’Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université Paris Cité, 24 rue Lhomond, 75005 Paris, France
| | - Emil Marinov
- Laboratoire de Physique de l’Ecole Normale Supérieure (LPENS), CNRS UMR 8023, Ecole Normale Supérieure, Université PSL, Sorbonne Université, and Université Paris Cité, 24 rue Lhomond, 75005 Paris, France
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4
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Haiech J. [Taking into account aerolization during the COVID-19 pandemic]. Med Sci (Paris) 2022; 38:693-697. [PMID: 36094240 DOI: 10.1051/medsci/2022100] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Jacques Haiech
- Équipe pédagogique éthique, déontologie et intégrité scientifique (EPEDIS), UFR des sciences fondamentales et biomédicales, campus Saint-Germain- des-Prés, 45 rue des Saints Pères, 75006 Paris, France
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5
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Abstract
L’intelligence artificielle est une expression fourre-tout, qui suscite autant d’espoirs que de craintes. Cette locution a envahi les médias, les conférences, les conversations, mais aussi les appels à projets des institutions de recherche et de diverses associations. On ne peut quasiment plus élaborer de projet de recherche sans mentionner une interface avec l’intelligence artificielle. Dans cet article, après la présentation d’une brève vision historique, nous proposerons une définition de l’intelligence artificielle et un paysage des possibles offerts par celle-ci.
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Affiliation(s)
- Jacques Haiech
- CNRS UMR7242 BSC, ESBS, 300 Bd Sébastien Brant, CS 10413, 67412 Illkirch cedex, France
| | - Thierry Jouault
- Univ. Lille, Inserm, CHU Lille, U1286 - Infinite - Institut de recherche translationnelle en Inflammation, F-59000 Lille, France
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Hervé C, Forest C, Noûs C, Haiech J. Plaidoyer pour une culture scientifique ouverte et socialement responsable. Ethics, Medicine and Public Health 2020; 14:100526. [PMID: 32835049 PMCID: PMC7351387 DOI: 10.1016/j.jemep.2020.100526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 05/14/2020] [Indexed: 11/24/2022]
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Haiech J, Forest C, Hervé C. [Our students tell us about scientific integrity. - Scientific integrity on a daily basis: giving doctoral students a voice]. Med Sci (Paris) 2019; 35:557. [PMID: 31274086 DOI: 10.1051/medsci/2019100] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jacques Haiech
- CNRS UMR7242 BSC, ESBS, 300, boulevard Sébastien Brant, CS 10413, 67412 Illkirch Cedex, France
| | - Claude Forest
- Inserm UMR-S1124, Toxicologie Pharmacologie et Signalisation cellulaire, Université Paris Descartes, 45, rue des Saints Pères, 75006 Paris, France
| | - Christian Hervé
- Académie Internationale Éthique, Médecine et Politiques Publiques (IAMEPH), Université Paris Descartes, 45, rue des Saints Pères, 75006 Paris, France
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9
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Haiech J, Heizmann CW, Krebs J. ECS meeting. Biochim Biophys Acta Mol Cell Res 2019; 1866:1035-1036. [PMID: 30653983 DOI: 10.1016/j.bbamcr.2019.01.006] [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: 11/29/2022]
Affiliation(s)
- Jacques Haiech
- UMR7175, Ecole Supérieure de Biotechnologie de Strasbourg (ESBS) and Faculté de Pharmacie, Université de Strasbourg, Illkirch, France.
| | - Claus W Heizmann
- Division of Clinical Chemistry and Biochemistry, Department of Pediatrics, University of Zurich, Zurich, Switzerland.
| | - Joachim Krebs
- NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.
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Néant I, Haiech J, Kilhoffer MC, Aulestia FJ, Moreau M, Leclerc C. Ca 2+-Dependent Transcriptional Repressors KCNIP and Regulation of Prognosis Genes in Glioblastoma. Front Mol Neurosci 2018; 11:472. [PMID: 30618619 PMCID: PMC6305344 DOI: 10.3389/fnmol.2018.00472] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 10/03/2018] [Accepted: 12/04/2018] [Indexed: 12/18/2022] Open
Abstract
Glioblastomas (GBMs) are the most aggressive and lethal primary astrocytic tumors in adults, with very poor prognosis. Recurrence in GBM is attributed to glioblastoma stem-like cells (GSLCs). The behavior of the tumor, including proliferation, progression, invasion, and significant resistance to therapies, is a consequence of the self-renewing properties of the GSLCs, and their high resistance to chemotherapies have been attributed to their capacity to enter quiescence. Thus, targeting GSLCs may constitute one of the possible therapeutic challenges to significantly improve anti-cancer treatment regimens for GBM. Ca2+ signaling is an important regulator of tumorigenesis in GBM, and the transition from proliferation to quiescence involves the modification of the kinetics of Ca2+ influx through store-operated channels due to an increased capacity of the mitochondria of quiescent GSLC to capture Ca2+. Therefore, the identification of new therapeutic targets requires the analysis of the calcium-regulated elements at transcriptional levels. In this review, we focus onto the direct regulation of gene expression by KCNIP proteins (KCNIP1–4). These proteins constitute the class E of Ca2+ sensor family with four EF-hand Ca2+-binding motifs and control gene transcription directly by binding, via a Ca2+-dependent mechanism, to specific DNA sites on target genes, called downstream regulatory element (DRE). The presence of putative DRE sites on genes associated with unfavorable outcome for GBM patients suggests that KCNIP proteins may contribute to the alteration of the expression of these prognosis genes. Indeed, in GBM, KCNIP2 expression appears to be significantly linked to the overall survival of patients. In this review, we summarize the current knowledge regarding the quiescent GSLCs with respect to Ca2+ signaling and discuss how Ca2+via KCNIP proteins may affect prognosis genes expression in GBM. This original mechanism may constitute the basis of the development of new therapeutic strategies.
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Affiliation(s)
- Isabelle Néant
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), CNRS, UPS, Université de Toulouse, Toulouse, France
| | - Jacques Haiech
- Laboratoire d'Excellence Medalis, CNRS, LIT UMR 7200, Université de Strasbourg, Strasbourg, France
| | - Marie-Claude Kilhoffer
- Laboratoire d'Excellence Medalis, CNRS, LIT UMR 7200, Université de Strasbourg, Strasbourg, France
| | - Francisco J Aulestia
- Department of Basic Science and Craniofacial Biology, NYU College of Dentistry, New York, NY, United States
| | - Marc Moreau
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), CNRS, UPS, Université de Toulouse, Toulouse, France
| | - Catherine Leclerc
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), CNRS, UPS, Université de Toulouse, Toulouse, France
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11
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Regenass P, Abboud D, Daubeuf F, Lehalle C, Gizzi P, Riché S, Hachet-Haas M, Rohmer F, Gasparik V, Boeglin D, Haiech J, Knehans T, Rognan D, Heissler D, Marsol C, Villa P, Galzi JL, Hibert M, Frossard N, Bonnet D. Discovery of a Locally and Orally Active CXCL12 Neutraligand (LIT-927) with Anti-inflammatory Effect in a Murine Model of Allergic Airway Hypereosinophilia. J Med Chem 2018; 61:7671-7686. [PMID: 30106292 DOI: 10.1021/acs.jmedchem.8b00657] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We previously reported Chalcone-4 (1) that binds the chemokine CXCL12, not its cognate receptors CXCR4 or CXCR7, and neutralizes its biological activity. However, this neutraligand suffers from limitations such as poor chemical stability, solubility, and oral activity. Herein, we report on the discovery of pyrimidinone 57 (LIT-927), a novel neutraligand of CXCL12 which displays a higher solubility than 1 and is no longer a Michael acceptor. While both 1 and 57 reduce eosinophil recruitment in a murine model of allergic airway hypereosinophilia, 57 is the only one to display inhibitory activity following oral administration. Thereby, we here describe 57 as the first orally active CXCL12 neutraligand with anti-inflammatory properties. Combined with a high binding selectivity for CXCL12 over other chemokines, 57 represents a powerful pharmacological tool to investigate CXCL12 physiology in vivo and to explore the activity of chemokine neutralization in inflammatory and related diseases.
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Affiliation(s)
- Pierre Regenass
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Dayana Abboud
- Biotechnologie et Signalisation Cellulaire , Ecole Supérieure de Biotechnologie de Strasbourg, UMR 7242 CNRS/Université de Strasbourg , Bld Sébastien Brant , 67412 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - François Daubeuf
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Plate-forme de chimie biologique intégrative de Strasbourg , UMS 3286 CNRS/Université de Strasbourg , 67412 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Christine Lehalle
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Plate-forme de chimie biologique intégrative de Strasbourg , UMS 3286 CNRS/Université de Strasbourg , 67412 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Patrick Gizzi
- Plate-forme de chimie biologique intégrative de Strasbourg , UMS 3286 CNRS/Université de Strasbourg , 67412 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Stéphanie Riché
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Muriel Hachet-Haas
- Biotechnologie et Signalisation Cellulaire , Ecole Supérieure de Biotechnologie de Strasbourg, UMR 7242 CNRS/Université de Strasbourg , Bld Sébastien Brant , 67412 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - François Rohmer
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Vincent Gasparik
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Damien Boeglin
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Tim Knehans
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Didier Rognan
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Denis Heissler
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Claire Marsol
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Plate-forme de chimie biologique intégrative de Strasbourg , UMS 3286 CNRS/Université de Strasbourg , 67412 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Pascal Villa
- Plate-forme de chimie biologique intégrative de Strasbourg , UMS 3286 CNRS/Université de Strasbourg , 67412 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Jean-Luc Galzi
- Biotechnologie et Signalisation Cellulaire , Ecole Supérieure de Biotechnologie de Strasbourg, UMR 7242 CNRS/Université de Strasbourg , Bld Sébastien Brant , 67412 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Marcel Hibert
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Nelly Frossard
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
| | - Dominique Bonnet
- Laboratoire d'Innovation Thérapeutique , Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin , 67401 Illkirch , France.,Labex MEDALIS , Université de Strasbourg , 67000 Strasbourg , France
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12
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Aulestia FJ, Néant I, Dong J, Haiech J, Kilhoffer MC, Moreau M, Leclerc C. Quiescence status of glioblastoma stem-like cells involves remodelling of Ca 2+ signalling and mitochondrial shape. Sci Rep 2018; 8:9731. [PMID: 29950651 PMCID: PMC6021377 DOI: 10.1038/s41598-018-28157-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 06/14/2018] [Indexed: 12/31/2022] Open
Abstract
Quiescence is a reversible cell-cycle arrest which allows cancer stem-like cells to evade killing following therapies. Here, we show that proliferating glioblastoma stem-like cells (GSLCs) can be induced and maintained in a quiescent state by lowering the extracellular pH. Through RNAseq analysis we identified Ca2+ signalling genes differentially expressed between proliferating and quiescent GSLCs. Using the bioluminescent Ca2+ reporter EGFP-aequorin we observed that the changes in Ca2+ homeostasis occurring during the switch from proliferation to quiescence are controlled through store-operated channels (SOC) since inhibition of SOC drives proliferating GSLCs to quiescence. We showed that this switch is characterized by an increased capacity of GSLCs’ mitochondria to capture Ca2+ and by a dramatic and reversible change of mitochondrial morphology from a tubular to a donut shape. Our data suggest that the remodelling of the Ca2+ homeostasis and the reshaping of mitochondria might favours quiescent GSLCs’ survival and their aggressiveness in glioblastoma.
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Affiliation(s)
- Francisco J Aulestia
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, F-31062, Toulouse, France
| | - Isabelle Néant
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, F-31062, Toulouse, France
| | - Jihu Dong
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000, Strasbourg, France
| | - Jacques Haiech
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000, Strasbourg, France
| | - Marie-Claude Kilhoffer
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000, Strasbourg, France
| | - Marc Moreau
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, F-31062, Toulouse, France
| | - Catherine Leclerc
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, F-31062, Toulouse, France.
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13
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Chen W, Zebaze LN, Dong J, Chézeau L, Inquimbert P, Hugel S, Niu S, Bihel F, Boutant E, Réal E, Villa P, Junier MP, Chneiweiss H, Hibert M, Haiech J, Kilhoffer MC, Zeniou M. WNK1 kinase and its partners Akt, SGK1 and NBC-family Na +/HCO3 - cotransporters are potential therapeutic targets for glioblastoma stem-like cells linked to Bisacodyl signaling. Oncotarget 2018; 9:27197-27219. [PMID: 29930759 PMCID: PMC6007472 DOI: 10.18632/oncotarget.25509] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 12/06/2017] [Accepted: 05/10/2018] [Indexed: 11/25/2022] Open
Abstract
Glioblastoma is a highly heterogeneous brain tumor. The presence of cancer cells with stem-like and tumor initiation/propagation properties contributes to poor prognosis. Glioblastoma cancer stem-like cells (GSC) reside in hypoxic and acidic niches favoring cell quiescence and drug resistance. A high throughput screening recently identified the laxative Bisacodyl as a cytotoxic compound targeting quiescent GSC placed in acidic microenvironments. Bisacodyl activity requires its hydrolysis into DDPM, its pharmacologically active derivative. Bisacodyl was further shown to induce tumor shrinking and increase survival in in vivo glioblastoma models. Here we explored the cellular mechanism underlying Bisacodyl cytotoxic effects using quiescent GSC in an acidic microenvironment and GSC-derived 3D macro-spheres. These spheres mimic many aspects of glioblastoma tumors in vivo, including hypoxic/acidic areas containing quiescent cells. Phosphokinase protein arrays combined with pharmacological and genetic modulation of signaling pathways point to the WNK1 serine/threonine protein kinase as a mediator of Bisacodyl cytotoxic effect in both cell models. WNK1 partners including the Akt and SGK1 protein kinases and NBC-family Na+/HCO3− cotransporters were shown to participate in the compound’s effect on GSC. Overall, our findings uncover novel potential therapeutic targets for combatting glioblastoma which is presently an incurable disease.
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Affiliation(s)
- Wanyin Chen
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Leonel Nguekeu Zebaze
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Jihu Dong
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Laëtitia Chézeau
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Perrine Inquimbert
- Institut des Neurosciences Cellulaires et Intégratives, UPR3212, Centre National de la Recherche Scientifique, 67084 Strasbourg, France; Université de Strasbourg, Strasbourg 67084, France
| | - Sylvain Hugel
- Institut des Neurosciences Cellulaires et Intégratives, UPR3212, Centre National de la Recherche Scientifique, 67084 Strasbourg, France; Université de Strasbourg, Strasbourg 67084, France
| | - Songlin Niu
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Fréderic Bihel
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Emmanuel Boutant
- Laboratoire de Bioimagerie et Pathologies - LBP, UMR7021, Centre National de la Recherche Scientifique/Université de Strasbourg, Faculté de Pharmacie, Illkirch 67401, France
| | - Eléonore Réal
- Laboratoire de Bioimagerie et Pathologies - LBP, UMR7021, Centre National de la Recherche Scientifique/Université de Strasbourg, Faculté de Pharmacie, Illkirch 67401, France
| | - Pascal Villa
- Plateforme de Chimie Biologie Intégrative (PCBIS), Université de Strasbourg/CNRS UMS 3286, Laboratoire d'Excellence Medalis, ESBS Pôle API-Bld Sébastien Brant, Illkirch 67401, France
| | - Marie-Pierre Junier
- Neuroscience Paris Seine-IBPS, CNRS UMR 8246/Inserm U1130/UPMC UMCR18, Paris 75005, France
| | - Hervé Chneiweiss
- Neuroscience Paris Seine-IBPS, CNRS UMR 8246/Inserm U1130/UPMC UMCR18, Paris 75005, France
| | - Marcel Hibert
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Marie-Claude Kilhoffer
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
| | - Maria Zeniou
- Laboratoire d'Innovation Thérapeutique, Centre National de la Recherche Scientifique/Université de Strasbourg, UMR7200, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Illkirch 67401, France
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Rosati E, Madec M, Kammerer JB, Hébrard L, Lallement C, Haiech J. Efficient Modeling and Simulation of Space-Dependent Biological Systems. J Comput Biol 2018; 25:917-933. [PMID: 29741924 DOI: 10.1089/cmb.2018.0012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
We recently demonstrated the possibility to model and to simulate biological functions using hardware description languages (HDLs) and associated simulators traditionally used for microelectronics. Nevertheless, those languages are not suitable to model and simulate space-dependent systems described by partial differential equations. However, in more and more applications space- and time-dependent models are unavoidable. For this purpose, we investigated a new modeling approach to simulate molecular diffusion on a mesoscopic scale still based on HDL. Our work relies on previous investigations on an electrothermal simulation tool for integrated circuits, and analogies that can be drawn between electronics, thermodynamics, and biology. The tool is composed of four main parts: a simple but efficient mesher that divides space into parallelepipeds (or rectangles in 2D) of adaptable size, a set of interconnected biological models, a SPICE simulator that handles the model and Python scripts that interface the different tools. Simulation results obtained with our tool have been validated on simple cases for which an analytical solution exists and compared with experimental data gathered from literature. Compared with existing approaches, our simulator has three main advantages: a very simple algorithm providing a direct interface between the diffusion model and biological model of each cell, the use of a powerful and widely proven simulation core (SPICE) and the ability to interface biological models with other domains of physics, enabling the study of transdisciplinary systems.
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Affiliation(s)
- Elise Rosati
- 1 Laboratoire des Sciences pour l'Ingénieur, de l'Informatique et de l'Imagerie (ICube), UMR 7357 (Université de Strasbourg/CNRS), 300 bd Sébastien Brandt, 67412 ILLKIRCH, France
| | - Morgan Madec
- 1 Laboratoire des Sciences pour l'Ingénieur, de l'Informatique et de l'Imagerie (ICube), UMR 7357 (Université de Strasbourg/CNRS), 300 bd Sébastien Brandt, 67412 ILLKIRCH, France
| | - Jean-Baptiste Kammerer
- 1 Laboratoire des Sciences pour l'Ingénieur, de l'Informatique et de l'Imagerie (ICube), UMR 7357 (Université de Strasbourg/CNRS), 300 bd Sébastien Brandt, 67412 ILLKIRCH, France
| | - Luc Hébrard
- 1 Laboratoire des Sciences pour l'Ingénieur, de l'Informatique et de l'Imagerie (ICube), UMR 7357 (Université de Strasbourg/CNRS), 300 bd Sébastien Brandt, 67412 ILLKIRCH, France
| | - Christophe Lallement
- 1 Laboratoire des Sciences pour l'Ingénieur, de l'Informatique et de l'Imagerie (ICube), UMR 7357 (Université de Strasbourg/CNRS), 300 bd Sébastien Brandt, 67412 ILLKIRCH, France
| | - Jacques Haiech
- 1 Laboratoire des Sciences pour l'Ingénieur, de l'Informatique et de l'Imagerie (ICube), UMR 7357 (Université de Strasbourg/CNRS), 300 bd Sébastien Brandt, 67412 ILLKIRCH, France.,2 Laboratoire de Biotechnologies et de Signalisation Cellulaire (BSC), UMR 7242 (Université de Strasbourg/CNRS), 300 bd Sébastien Brandt, 67412 ILLKIRCH, France
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15
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García-Palmero I, Pompas-Veganzones N, Villalobo E, Gioria S, Haiech J, Villalobo A. The adaptors Grb10 and Grb14 are calmodulin-binding proteins. FEBS Lett 2017; 591:1176-1186. [PMID: 28295264 DOI: 10.1002/1873-3468.12623] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 03/06/2017] [Indexed: 01/24/2023]
Abstract
We identified the Grb7 family members, Grb10 and Grb14, as Ca2+ -dependent CaM-binding proteins using Ca2+ -dependent CaM-affinity chromatography as we previously did with Grb7. The potential CaM-binding sites were identified and experimentally tested using fluorescent-labeled peptides corresponding to these sites. The apparent affinity constant of these peptides for CaM, and the minimum number of calcium ions bound to CaM that are required for effective binding to these peptides were also determined. We prepared deletion mutants of the three adaptor proteins lacking the identified sites and determined that they lost or strongly diminished their CaM-binding capacity following the sequence Grb7 > > Grb14 > Grb10. More than one CaM-binding site and/or accessory CaM-binding sites appear to exist in Grb10 and Grb14, as compared to a single one present in Grb7.
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Affiliation(s)
- Irene García-Palmero
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas, Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Spain
| | - Noemí Pompas-Veganzones
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas, Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Spain
| | - Eduardo Villalobo
- Departamento de Microbiología, Facultad de Biología, Universidad de Sevilla, Spain
| | - Sophie Gioria
- Plate-forme de Chimie Biologique Intégrative de Strasbourg (PCBIS), UMS 3286 CNRS-Université de Strasbourg, France
| | - Jacques Haiech
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, France
| | - Antonio Villalobo
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas, Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Spain
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16
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Madec M, Haiech J, Rosati É, Rezgui A, Gendrault Y, Lallement C. [Application of microelectronics CAD tools to synthetic biology]. Med Sci (Paris) 2017; 33:159-168. [PMID: 28240207 DOI: 10.1051/medsci/20173302011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Synthetic biology is an emerging science that aims to create new biological functions that do not exist in nature, based on the knowledge acquired in life science over the last century. Since the beginning of this century, several projects in synthetic biology have emerged. The complexity of the developed artificial bio-functions is relatively low so that empirical design methods could be used for the design process. Nevertheless, with the increasing complexity of biological circuits, this is no longer the case and a large number of computer aided design softwares have been developed in the past few years. These tools include languages for the behavioral description and the mathematical modelling of biological systems, simulators at different levels of abstraction, libraries of biological devices and circuit design automation algorithms. All of these tools already exist in other fields of engineering sciences, particularly in microelectronics. This is the approach that is put forward in this paper.
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Affiliation(s)
- Morgan Madec
- Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), 300, boulevard Sébastien Brandt, 67412 Illkirch, France
| | - Jacques Haiech
- Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), 300, boulevard Sébastien Brandt, 67412 Illkirch, France
| | - Élise Rosati
- Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), 300, boulevard Sébastien Brandt, 67412 Illkirch, France
| | - Abir Rezgui
- Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), 300, boulevard Sébastien Brandt, 67412 Illkirch, France
| | - Yves Gendrault
- Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), 300, boulevard Sébastien Brandt, 67412 Illkirch, France
| | - Christophe Lallement
- Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), 300, boulevard Sébastien Brandt, 67412 Illkirch, France
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17
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Dong J, Aulestia FJ, Assad Kahn S, Zeniou M, Dubois LG, El-Habr EA, Daubeuf F, Tounsi N, Cheshier SH, Frossard N, Junier MP, Chneiweiss H, Néant I, Moreau M, Leclerc C, Haiech J, Kilhoffer MC. Bisacodyl and its cytotoxic activity on human glioblastoma stem-like cells. Implication of inositol 1,4,5-triphosphate receptor dependent calcium signaling. Biochim Biophys Acta Mol Cell Res 2017; 1864:1018-1027. [PMID: 28109792 DOI: 10.1016/j.bbamcr.2017.01.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 01/15/2017] [Accepted: 01/16/2017] [Indexed: 12/20/2022]
Abstract
Glioblastoma is the most common malignant brain tumor. The heterogeneity at the cellular level, metabolic specificities and plasticity of the cancer cells are a challenge for glioblastoma treatment. Identification of cancer cells endowed with stem properties and able to propagate the tumor in animal xenografts has opened a new paradigm in cancer therapy. Thus, to increase efficacy and avoid tumor recurrence, therapies need to target not only the differentiated cells of the tumor mass, but also the cancer stem-like cells. These therapies need to be effective on cells present in the hypoxic, slightly acidic microenvironment found within tumors. Such a microenvironment is known to favor more aggressive undifferentiated phenotypes and a slow-growing "quiescent state" that preserves the cells from chemotherapeutic agents, which mostly target proliferating cells. Based on these considerations, we performed a differential screening of the Prestwick Chemical Library of approved drugs on both proliferating and quiescent glioblastoma stem-like cells and identified bisacodyl as a cytotoxic agent with selectivity for quiescent glioblastoma stem-like cells. In the present study we further characterize bisacodyl activity and show its efficacy in vitro on clonal macro-tumorospheres, as well as in vivo in glioblastoma mouse models. Our work further suggests that bisacodyl acts through inhibition of Ca2+ release from the InsP3 receptors.
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Affiliation(s)
- Jihu Dong
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Francisco J Aulestia
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, 118 route de Narbonne, F-31062 Toulouse Cedex, France
| | - Suzana Assad Kahn
- Institute for Stem Cell Biology and Regenerative Medicine, Department of Neurosurgery, Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital Stanford University, California, USA
| | - Maria Zeniou
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Luiz Gustavo Dubois
- CNRS UMR8246, Inserm U1130, UPMC, Neuroscience Paris Seine-IBPS, Sorbonne Universities, 75005 Paris, France
| | - Elias A El-Habr
- CNRS UMR8246, Inserm U1130, UPMC, Neuroscience Paris Seine-IBPS, Sorbonne Universities, 75005 Paris, France
| | - François Daubeuf
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Nassera Tounsi
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Samuel H Cheshier
- Institute for Stem Cell Biology and Regenerative Medicine, Department of Neurosurgery, Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital Stanford University, California, USA
| | - Nelly Frossard
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Marie-Pierre Junier
- CNRS UMR8246, Inserm U1130, UPMC, Neuroscience Paris Seine-IBPS, Sorbonne Universities, 75005 Paris, France
| | - Hervé Chneiweiss
- CNRS UMR8246, Inserm U1130, UPMC, Neuroscience Paris Seine-IBPS, Sorbonne Universities, 75005 Paris, France
| | - Isabelle Néant
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, 118 route de Narbonne, F-31062 Toulouse Cedex, France
| | - Marc Moreau
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, 118 route de Narbonne, F-31062 Toulouse Cedex, France
| | - Catherine Leclerc
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, 118 route de Narbonne, F-31062 Toulouse Cedex, France
| | - Jacques Haiech
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France.
| | - Marie-Claude Kilhoffer
- Laboratoire d'Excellence Medalis, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
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18
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Robil N, Petel F, Kilhoffer MC, Haiech J. Glioblastoma and calcium signaling--analysis of calcium toolbox expression. Int J Dev Biol 2016; 59:407-15. [PMID: 26679953 DOI: 10.1387/ijdb.150200jh] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The characteristics of a cellular calcium signal (calcium signature) are determined, at least partly, by the expression of a subset of genes encoding proteins involved in calcium entry, calcium uptake and calcium modulation. Our aim in the present work was to characterize the set of genes involved in calcium signal generation that are differentially expressed in normal brain tissues versus brain tumor and/or glioma stem cells. Public datasets were analyzed according to a four step methodology consisting of: 1. detecting the outliers by using principal component analysis of the whole transcriptome; 2. building a calcium toolbox composed of 260 genes involved in the generation and modulation of the calcium signal; 3. analyzing the calcium toolbox transcriptome of different human brain areas and 4. detecting genes from the calcium toolbox preferentially expressed in tumor tissues or tumor cells compared to normal brain tissues. Our approach was validated on normal brain tissue. Tumor sample analysis allowed us to disclose a set of eighteen genes characteristic of glioblastoma tissues or glioma stem cells. Interpreting the set of genes highlighted in the study led us to propose that i) the mechanism of store operated calcium entry is strongly perturbed in cancer cells and tissues, ii) the process of calcium reuptake into mitochondria is more important in cancer cells and tissues than in their normal counterparts and iii) these two mechanisms may be coupled in at least one subgroup of the glioblastoma stem cells.
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Affiliation(s)
- Noémie Robil
- Programme Cartes d'Identité des Tumeurs (CIT), Ligue Nationale contre le Cancer, Paris, France
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19
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Madec M, Pecheux F, Gendrault Y, Rosati E, Lallement C, Haiech J. GeNeDA: An Open-Source Workflow for Design Automation of Gene Regulatory Networks Inspired from Microelectronics. J Comput Biol 2016; 23:841-55. [DOI: 10.1089/cmb.2015.0229] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- Morgan Madec
- Laboratoire Icube, Université de Strasbourg/Centre National de Recherche Scientifique, Illkirch, France
| | - François Pecheux
- Sorbonne Universités, Universite Pierre et Marie Curie, Paris, France
- CNRS, UMR, Paris, France
| | - Yves Gendrault
- Laboratoire Icube, Université de Strasbourg/Centre National de Recherche Scientifique, Illkirch, France
- ECAM Strasbourg-Europe, Schiltigheim, France
| | - Elise Rosati
- Laboratoire Icube, Université de Strasbourg/Centre National de Recherche Scientifique, Illkirch, France
| | - Christophe Lallement
- Laboratoire Icube, Université de Strasbourg/Centre National de Recherche Scientifique, Illkirch, France
| | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique, Illkirch, France
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20
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Affiliation(s)
- Jacques Haiech
- MR7200, Laboratoire d'innovations thérapeutiques Faculté de pharmacie, ULP, 74, route du Rhin 67401 Illkirch, France
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21
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Assad Kahn S, Costa SL, Gholamin S, Nitta RT, Dubois LG, Fève M, Zeniou M, Coelho PLC, El-Habr E, Cadusseau J, Varlet P, Mitra SS, Devaux B, Kilhoffer MC, Cheshier SH, Moura-Neto V, Haiech J, Junier MP, Chneiweiss H. The anti-hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ-dependent inhibition of the AKT pathway. EMBO Mol Med 2016; 8:511-26. [PMID: 27138566 PMCID: PMC5130115 DOI: 10.15252/emmm.201505421] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
A variety of drugs targeting monoamine receptors are routinely used in human pharmacology. We assessed the effect of these drugs on the viability of tumor‐initiating cells isolated from patients with glioblastoma. Among the drugs targeting monoamine receptors, we identified prazosin, an α1‐ and α2B‐adrenergic receptor antagonist, as the most potent inducer of patient‐derived glioblastoma‐initiating cell death. Prazosin triggered apoptosis of glioblastoma‐initiating cells and of their differentiated progeny, inhibited glioblastoma growth in orthotopic xenografts of patient‐derived glioblastoma‐initiating cells, and increased survival of glioblastoma‐bearing mice. We found that prazosin acted in glioblastoma‐initiating cells independently from adrenergic receptors. Its off‐target activity occurred via a PKCδ‐dependent inhibition of the AKT pathway, which resulted in caspase‐3 activation. Blockade of PKCδ activation prevented all molecular changes observed in prazosin‐treated glioblastoma‐initiating cells, as well as prazosin‐induced apoptosis. Based on these data, we conclude that prazosin, an FDA‐approved drug for the control of hypertension, inhibits glioblastoma growth through a PKCδ‐dependent mechanism. These findings open up promising prospects for the use of prazosin as an adjuvant therapy for glioblastoma patients.
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Affiliation(s)
- Suzana Assad Kahn
- INSERM, UMR-S 1130, Neuroscience Paris Seine-IBPS, Paris, France CNRS, UMR 8246, Neuroscience Paris Seine-IBPS, Paris, France Sorbonne Universités, UPMC Université Paris 06, UMR-S 8246, Neuroscience Paris Seine-IBPS, Paris, France Department of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford University, Stanford, CA, USA
| | - Silvia Lima Costa
- INSERM, UMR-S 1130, Neuroscience Paris Seine-IBPS, Paris, France CNRS, UMR 8246, Neuroscience Paris Seine-IBPS, Paris, France Sorbonne Universités, UPMC Université Paris 06, UMR-S 8246, Neuroscience Paris Seine-IBPS, Paris, France Neurochemistry and Cell Biology Laboratory Universidade Federal da Bahia, Salvador-Bahia, Brazil
| | - Sharareh Gholamin
- Department of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford University, Stanford, CA, USA
| | - Ryan T Nitta
- Department of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford University, Stanford, CA, USA
| | - Luiz Gustavo Dubois
- INSERM, UMR-S 1130, Neuroscience Paris Seine-IBPS, Paris, France CNRS, UMR 8246, Neuroscience Paris Seine-IBPS, Paris, France Sorbonne Universités, UPMC Université Paris 06, UMR-S 8246, Neuroscience Paris Seine-IBPS, Paris, France Instituto Estadual do Cérebro Paulo Niemeyer, Rio de Janeiro, Brazil
| | - Marie Fève
- Laboratoire d'Innovation Thérapeutique, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Université de Strasbourg/CNRS UMR7200, Illkirch, France
| | - Maria Zeniou
- Laboratoire d'Innovation Thérapeutique, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Université de Strasbourg/CNRS UMR7200, Illkirch, France
| | - Paulo Lucas Cerqueira Coelho
- INSERM, UMR-S 1130, Neuroscience Paris Seine-IBPS, Paris, France CNRS, UMR 8246, Neuroscience Paris Seine-IBPS, Paris, France Sorbonne Universités, UPMC Université Paris 06, UMR-S 8246, Neuroscience Paris Seine-IBPS, Paris, France Neurochemistry and Cell Biology Laboratory Universidade Federal da Bahia, Salvador-Bahia, Brazil
| | - Elias El-Habr
- INSERM, UMR-S 1130, Neuroscience Paris Seine-IBPS, Paris, France CNRS, UMR 8246, Neuroscience Paris Seine-IBPS, Paris, France Sorbonne Universités, UPMC Université Paris 06, UMR-S 8246, Neuroscience Paris Seine-IBPS, Paris, France
| | - Josette Cadusseau
- UMR INSERM 955-Team 10, Faculté des Sciences et Technologies UPEC, Créteil, France
| | - Pascale Varlet
- Department of Neuropathology, Sainte-Anne Hospital, Paris, France Paris Descartes University, Paris, France
| | - Siddhartha S Mitra
- Department of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford University, Stanford, CA, USA
| | - Bertrand Devaux
- INSERM, UMR-S 1130, Neuroscience Paris Seine-IBPS, Paris, France CNRS, UMR 8246, Neuroscience Paris Seine-IBPS, Paris, France Paris Descartes University, Paris, France Department of Neurosurgery, Sainte-Anne Hospital, Paris, France
| | - Marie-Claude Kilhoffer
- Laboratoire d'Innovation Thérapeutique, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Université de Strasbourg/CNRS UMR7200, Illkirch, France
| | - Samuel H Cheshier
- Department of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford University, Stanford, CA, USA
| | | | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Université de Strasbourg/CNRS UMR7200, Illkirch, France
| | - Marie-Pierre Junier
- INSERM, UMR-S 1130, Neuroscience Paris Seine-IBPS, Paris, France CNRS, UMR 8246, Neuroscience Paris Seine-IBPS, Paris, France Sorbonne Universités, UPMC Université Paris 06, UMR-S 8246, Neuroscience Paris Seine-IBPS, Paris, France
| | - Hervé Chneiweiss
- INSERM, UMR-S 1130, Neuroscience Paris Seine-IBPS, Paris, France CNRS, UMR 8246, Neuroscience Paris Seine-IBPS, Paris, France Sorbonne Universités, UPMC Université Paris 06, UMR-S 8246, Neuroscience Paris Seine-IBPS, Paris, France
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Affiliation(s)
- Thierry Capiod
- Inserm U1151, Institut Necker Enfants Malades (INEM), Faculté de Médecine Paris Descartes, Paris, France; UMR7175, Ecole Supérieure de Biotechnologie de Strasbourg (ESBS) and Faculté de Pharmacie, Université de Strasbourg, Illkirch, France.
| | - Jacques Haiech
- UMR7175, Ecole Supérieure de Biotechnologie de Strasbourg (ESBS) and Faculté de Pharmacie, Université de Strasbourg, Illkirch, France.
| | - Claus W Heizmann
- Division of Clinical Chemistry and Biochemistry, Department of Pediatrics, University of Zurich, Zurich, Switzerland.
| | - Joachim Krebs
- NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.
| | - Olivier Mignen
- Inserm U1078, Faculté de Médecine et des Sciences de la Santé, Université de Bretagne Occidentale, Brest, France.
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Abboud D, Daubeuf F, Do QT, Utard V, Villa P, Haiech J, Bonnet D, Hibert M, Bernard P, Galzi JL, Frossard N. A strategy to discover decoy chemokine ligands with an anti-inflammatory activity. Sci Rep 2015; 5:14746. [PMID: 26442456 PMCID: PMC4595804 DOI: 10.1038/srep14746] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 08/12/2015] [Indexed: 01/10/2023] Open
Abstract
Excessive signaling by chemokines has been associated with chronic inflammation or cancer, thus attracting substantial attention as promising therapeutic targets. Inspired by chemokine-clearing molecules shaped by pathogens to escape the immune system, we designed a generic screening assay to discover chemokine neutralizing molecules (neutraligands) and unambiguously distinguish them from molecules that block the receptor (receptor antagonists). This assay, called TRIC-r, combines time-resolved intracellular calcium recordings with pre-incubation of bioactive compounds either with the chemokine or the receptor-expressing cells. We describe here the identification of high affinity neutraligands of CCL17 and CCL22, two chemokines involved in the Th2-type of lung inflammation. The decoy molecules inhibit in vitro CCL17- or CCL22-induced intracellular calcium responses, CCR4 endocytosis and human T cell migration. In vivo, they inhibit inflammation in a murine model of asthma, in particular the recruitment of eosinophils, dendritic cells and CD4+T cells. Altogether, we developed a successful strategy to discover as new class of pharmacological tools to potently control cell chemotaxis in vitro and in vivo.
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Affiliation(s)
- Dayana Abboud
- Biotechnologie et Signalisation Cellulaire, UMR 7242 CNRS/Université de Strasbourg, and Labex Medalis, ESBS, 300 Boulevard Sébastien Brant, 67412 Illkirch, France
| | - François Daubeuf
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, and Labex Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Quoc Tuan Do
- GreenPharma, 3 allée du Titane, 45100 Orléans, France
| | - Valérie Utard
- Biotechnologie et Signalisation Cellulaire, UMR 7242 CNRS/Université de Strasbourg, and Labex Medalis, ESBS, 300 Boulevard Sébastien Brant, 67412 Illkirch, France
| | - Pascal Villa
- PCBIS Plate-forme de Chimie Biologique Intégrative de Strasbourg, UMS 3286 CNRS/Université de Strasbourg, and Labex Medalis, ESBS, 300 Boulevard Sébastien Brant, 67412 Illkirch, France
| | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, and Labex Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Dominique Bonnet
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, and Labex Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Marcel Hibert
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, and Labex Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | | | - Jean-Luc Galzi
- Biotechnologie et Signalisation Cellulaire, UMR 7242 CNRS/Université de Strasbourg, and Labex Medalis, ESBS, 300 Boulevard Sébastien Brant, 67412 Illkirch, France
| | - Nelly Frossard
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, and Labex Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
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Guilini C, Baehr C, Schaeffer E, Gizzi P, Rufi F, Haiech J, Weiss E, Bonnet D, Galzi JL. New Fluorescein Precursors for Live Bacteria Detection. Anal Chem 2015; 87:8858-66. [DOI: 10.1021/acs.analchem.5b02100] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Celia Guilini
- Biotechnologie
et Signalisation Cellulaire, UMR 7242 CNRS/Université de Strasbourg,
and Labex Medalis, ESBS, 300 Boulevard
Sébastien Brant, 67412 Illkirch, France
| | - Corinne Baehr
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS/Université de Strasbourg,
and Labex Medalis, Faculté de Pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Etienne Schaeffer
- Biotechnologie
et Signalisation Cellulaire, UMR 7242 CNRS/Université de Strasbourg,
and Labex Medalis, ESBS, 300 Boulevard
Sébastien Brant, 67412 Illkirch, France
| | - Patrick Gizzi
- Biotechnologie
et Signalisation Cellulaire, UMR 7242 CNRS/Université de Strasbourg,
and Labex Medalis, ESBS, 300 Boulevard
Sébastien Brant, 67412 Illkirch, France
| | - Frédéric Rufi
- Bürkert Fluid Control Systems, BP21, 67220 Triembach-au-Val, France
| | - Jacques Haiech
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS/Université de Strasbourg,
and Labex Medalis, Faculté de Pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Etienne Weiss
- Biotechnologie
et Signalisation Cellulaire, UMR 7242 CNRS/Université de Strasbourg,
and Labex Medalis, ESBS, 300 Boulevard
Sébastien Brant, 67412 Illkirch, France
| | - Dominique Bonnet
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS/Université de Strasbourg,
and Labex Medalis, Faculté de Pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Jean-Luc Galzi
- Biotechnologie
et Signalisation Cellulaire, UMR 7242 CNRS/Université de Strasbourg,
and Labex Medalis, ESBS, 300 Boulevard
Sébastien Brant, 67412 Illkirch, France
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Zeniou M, Fève M, Mameri S, Dong J, Salomé C, Chen W, El-Habr EA, Bousson F, Sy M, Obszynski J, Boh A, Villa P, Assad Kahn S, Didier B, Bagnard D, Junier MP, Chneiweiss H, Haiech J, Hibert M, Kilhoffer MC. Chemical Library Screening and Structure-Function Relationship Studies Identify Bisacodyl as a Potent and Selective Cytotoxic Agent Towards Quiescent Human Glioblastoma Tumor Stem-Like Cells. PLoS One 2015; 10:e0134793. [PMID: 26270679 PMCID: PMC4536076 DOI: 10.1371/journal.pone.0134793] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 09/30/2014] [Accepted: 07/14/2015] [Indexed: 01/11/2023] Open
Abstract
Cancer stem-like cells reside in hypoxic and slightly acidic tumor niches. Such microenvironments favor more aggressive undifferentiated phenotypes and a slow growing "quiescent state" which preserves them from chemotherapeutic agents that essentially target proliferating cells. Our objective was to identify compounds active on glioblastoma stem-like cells, including under conditions that mimick those found in vivo within this most severe and incurable form of brain malignancy. We screened the Prestwick Library to identify cytotoxic compounds towards glioblastoma stem-like cells, either in a proliferating state or in more slow-growing "quiescent" phenotype resulting from non-renewal of the culture medium in vitro. Compound effects were assessed by ATP-level determination using a cell-based assay. Twenty active molecules belonging to different pharmacological classes have thus been identified. Among those, the stimulant laxative drug bisacodyl was the sole to inhibit in a potent and specific manner the survival of quiescent glioblastoma stem-like cells. Subsequent structure-function relationship studies led to identification of 4,4'-dihydroxydiphenyl-2-pyridyl-methane (DDPM), the deacetylated form of bisacodyl, as the pharmacophore. To our knowledge, bisacodyl is currently the only known compound targeting glioblastoma cancer stem-like cells in their quiescent, more resistant state. Due to its known non-toxicity in humans, bisacodyl appears as a new potential anti-tumor agent that may, in association with classical chemotherapeutic compounds, participate in tumor eradication.
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Affiliation(s)
- Maria Zeniou
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
- * E-mail:
| | - Marie Fève
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Samir Mameri
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Jihu Dong
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Christophe Salomé
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Wanyin Chen
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Elias A. El-Habr
- Neuroscience Paris Seine-IBPS, CNRS UMR 8246/ Inserm U1130/ UPMC UMCR18, 7 quai Saint Bernard, 75005 Paris, France
| | - Fanny Bousson
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Mohamadou Sy
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Julie Obszynski
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Alexandre Boh
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Pascal Villa
- Plateforme de Chimie Biologie Intégrative (PCBIS), Université de Strasbourg / CNRS UMS 3286, Laboratoire d’Excellence Medalis, ESBS Pôle API-Bld Sébastien Brant, 67401 Illkirch, France
| | - Suzana Assad Kahn
- Neuroscience Paris Seine-IBPS, CNRS UMR 8246/ Inserm U1130/ UPMC UMCR18, 7 quai Saint Bernard, 75005 Paris, France
| | - Bruno Didier
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
- Plateforme de Chimie Biologie Intégrative (PCBIS), Université de Strasbourg / CNRS UMS 3286, Laboratoire d’Excellence Medalis, ESBS Pôle API-Bld Sébastien Brant, 67401 Illkirch, France
| | - Dominique Bagnard
- U682, Inserm, Université de Strasbourg, 3, Avenue Molière, 67200 Strasbourg, France
| | - Marie-Pierre Junier
- Neuroscience Paris Seine-IBPS, CNRS UMR 8246/ Inserm U1130/ UPMC UMCR18, 7 quai Saint Bernard, 75005 Paris, France
| | - Hervé Chneiweiss
- Neuroscience Paris Seine-IBPS, CNRS UMR 8246/ Inserm U1130/ UPMC UMCR18, 7 quai Saint Bernard, 75005 Paris, France
| | - Jacques Haiech
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Marcel Hibert
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Marie-Claude Kilhoffer
- Laboratoire d’Innovation Thérapeutique, Université de Strasbourg / CNRS UMR7200, Laboratoire d’Excellence Medalis, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
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Argiles A, Mourad G, Mion C, Atkins RC, Haiech J. Two-dimensional gel electrophoresis of urinary proteins in kidney diseases. Contrib Nephrol 2015; 83:1-8. [PMID: 2100696 DOI: 10.1159/000418766] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- A Argiles
- Centre de Recherches de Biochimie Macromoleculaire, LP8402 CNRS and U249 INSERM, Montpellier, France
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Gendrault Y, Madec M, Lallement C, Haiech J. Modeling biology with HDL languages: a first step toward a genetic design automation tool inspired from microelectronics. IEEE Trans Biomed Eng 2014; 61:1231-40. [PMID: 24658247 DOI: 10.1109/tbme.2014.2298559] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Nowadays, synthetic biology is a hot research topic. Each day, progresses are made to improve the complexity of artificial biological functions in order to tend to complex biodevices and biosystems. Up to now, these systems are handmade by bioengineers, which require strong technical skills and leads to nonreusable development. Besides, scientific fields that share the same design approach, such as microelectronics, have already overcome several issues and designers succeed in building extremely complex systems with many evolved functions. On the other hand, in systems engineering and more specifically in microelectronics, the development of the domain has been promoted by both the improvement of technological processes and electronic design automation tools. The work presented in this paper paves the way for the adaptation of microelectronics design tools to synthetic biology. Considering the similarities and differences between the synthetic biology and microelectronics, the milestones of this adaptation are described. The first one concerns the modeling of biological mechanisms. To do so, a new formalism is proposed, based on an extension of the generalized Kirchhoff laws to biology. This way, a description of all biological mechanisms can be made with languages widely used in microelectronics. Our approach is therefore successfully validated on specific examples drawn from the literature.
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Bachstetter AD, Webster SJ, Tu T, Goulding DS, Haiech J, Watterson DM, Van Eldik LJ. Generation and behavior characterization of CaMKIIβ knockout mice. PLoS One 2014; 9:e105191. [PMID: 25127391 PMCID: PMC4134274 DOI: 10.1371/journal.pone.0105191] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 07/21/2014] [Indexed: 11/18/2022] Open
Abstract
The calcium/calmodulin-dependent protein kinase II (CaMKII) is abundant in the brain, where it makes important contributions to synaptic organization and homeostasis, including playing an essential role in synaptic plasticity and memory. Four genes encode isoforms of CaMKII (α, β, δ, γ), with CaMKIIα and CaMKIIβ highly expressed in the brain. Decades of molecular and cellular research, as well as the use of a large number of CaMKIIα mutant mouse lines, have provided insight into the pivotal roles of CaMKIIα in brain plasticity and cognition. However, less is known about the CaMKIIβ isoform. We report the development and extensive behavioral and phenotypic characterization of a CaMKIIβ knockout (KO) mouse. The CaMKIIβ KO mouse was found to be smaller at weaning, with an altered body mass composition. The CaMKIIβ KO mouse showed ataxia, impaired forelimb grip strength, and deficits in the rotorod, balance beam and running wheel tasks. Interestingly, the CaMKIIβ KO mouse exhibited reduced anxiety in the elevated plus maze and open field tests. The CaMKIIβ KO mouse also showed cognitive impairment in the novel object recognition task. Our results provide a comprehensive behavioral characterization of mice deficient in the β isoform of CaMKII. The neurologic phenotypes and the construction of the genotype suggest the utility of this KO mouse strain for future studies of CaMKIIβ in brain structure, function and development.
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Affiliation(s)
- Adam D. Bachstetter
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky, United States of America
| | - Scott J. Webster
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky, United States of America
| | - Tao Tu
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Danielle S. Goulding
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky, United States of America
| | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique, University of Strasbourg, Strasbourg, France
| | - D. Martin Watterson
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Linda J. Van Eldik
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky, United States of America
- Department of Anatomy and Neurobiology, University of Kentucky, Lexington, Kentucky, United States of America
- * E-mail:
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Moreau M, Haiech J. Calcium signalling as a hub for translational medicine a starting point to model life. Biochim Biophys Acta 2014; 1843:2283. [PMID: 24929141 DOI: 10.1016/j.bbamcr.2014.06.003] [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: 11/28/2022]
Affiliation(s)
- Marc Moreau
- CNRS, CBD UMR5547, Universite Paul Sabatier, 118 route de Narbonne, Toulouse 31062, France.
| | - Jacques Haiech
- UMR CNRS 7200, University of Strasbourg, 74 route du Rhin, BP24, Illkirch 67401, France.
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Fève M, Saliou JM, Zeniou M, Lennon S, Carapito C, Dong J, Van Dorsselaer A, Junier MP, Chneiweiss H, Cianférani S, Haiech J, Kilhoffer MC. Comparative expression study of the endo-G protein coupled receptor (GPCR) repertoire in human glioblastoma cancer stem-like cells, U87-MG cells and non malignant cells of neural origin unveils new potential therapeutic targets. PLoS One 2014; 9:e91519. [PMID: 24662753 PMCID: PMC3963860 DOI: 10.1371/journal.pone.0091519] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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: 12/28/2013] [Accepted: 02/10/2014] [Indexed: 12/22/2022] Open
Abstract
Glioblastomas (GBMs) are highly aggressive, invasive brain tumors with bad prognosis and unmet medical need. These tumors are heterogeneous being constituted by a variety of cells in different states of differentiation. Among these, cells endowed with stem properties, tumor initiating/propagating properties and particularly resistant to chemo- and radiotherapies are designed as the real culprits for tumor maintenance and relapse after treatment. These cells, termed cancer stem-like cells, have been designed as prominent targets for new and more efficient cancer therapies. G-protein coupled receptors (GPCRs), a family of membrane receptors, play a prominent role in cell signaling, cell communication and crosstalk with the microenvironment. Their role in cancer has been highlighted but remains largely unexplored. Here, we report a descriptive study of the differential expression of the endo-GPCR repertoire in human glioblastoma cancer stem-like cells (GSCs), U-87 MG cells, human astrocytes and fetal neural stem cells (f-NSCs). The endo-GPCR transcriptome has been studied using Taqman Low Density Arrays. Of the 356 GPCRs investigated, 138 were retained for comparative studies between the different cell types. At the transcriptomic level, eight GPCRs were specifically expressed/overexpressed in GSCs. Seventeen GPCRs appeared specifically expressed in cells with stem properties (GSCs and f-NSCs). Results of GPCR expression at the protein level using mass spectrometry and proteomic analysis are also presented. The comparative GPCR expression study presented here gives clues for new pathways specifically used by GSCs and unveils novel potential therapeutic targets.
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Affiliation(s)
- Marie Fève
- Laboratoire d'Innovation Thérapeutique, UMR7200, Laboratoire d'Excellence Medalis, CNRS, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Jean-Michel Saliou
- Laboratoire de Spectrométrie de Masse BioOrganique, UMR7178, CNRS, Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Strasbourg, France
| | - Maria Zeniou
- Laboratoire d'Innovation Thérapeutique, UMR7200, Laboratoire d'Excellence Medalis, CNRS, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Sarah Lennon
- Laboratoire de Spectrométrie de Masse BioOrganique, UMR7178, CNRS, Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Strasbourg, France
| | - Christine Carapito
- Laboratoire de Spectrométrie de Masse BioOrganique, UMR7178, CNRS, Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Strasbourg, France
| | - Jihu Dong
- Laboratoire d'Innovation Thérapeutique, UMR7200, Laboratoire d'Excellence Medalis, CNRS, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Alain Van Dorsselaer
- Laboratoire de Spectrométrie de Masse BioOrganique, UMR7178, CNRS, Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Strasbourg, France
| | - Marie-Pierre Junier
- Neuroscience Paris Seine, UMR8246, Inserm U1130, Institut de Biologie Paris Seine, CNRS, Université Pierre et Marie Curie, Paris, France
| | - Hervé Chneiweiss
- Neuroscience Paris Seine, UMR8246, Inserm U1130, Institut de Biologie Paris Seine, CNRS, Université Pierre et Marie Curie, Paris, France
| | - Sarah Cianférani
- Laboratoire de Spectrométrie de Masse BioOrganique, UMR7178, CNRS, Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Strasbourg, France
| | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique, UMR7200, Laboratoire d'Excellence Medalis, CNRS, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Marie-Claude Kilhoffer
- Laboratoire d'Innovation Thérapeutique, UMR7200, Laboratoire d'Excellence Medalis, CNRS, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
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Haiech J, Gendrault Y, Kilhoffer MC, Ranjeva R, Madec M, Lallement C. A general framework improving teaching ligand binding to a macromolecule. Biochim Biophys Acta 2014; 1843:2348-55. [PMID: 24657812 DOI: 10.1016/j.bbamcr.2014.03.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 03/10/2014] [Accepted: 03/13/2014] [Indexed: 10/25/2022]
Abstract
The interaction of a ligand with a macromolecule has been modeled following different theories. The tenants of the induced fit model consider that upon ligand binding, the protein-ligand complex undergoes a conformational change. In contrast, the allosteric model assumes that only one among different coexisting conformers of a given protein is suitable to bind the ligand optimally. In the present paper, we propose a general framework to model the binding of ligands to a macromolecule. Such framework built on the binding polynomial allows opening new ways to teach in a unified manner ligand binding, enzymology and receptor binding in pharmacology. Moreover, we have developed simple software that allows building the binding polynomial from the schematic description of the biological system under study. Taking calmodulin as a canonical example, we show here that the proposed tool allows the easy retrieval of previously experimental and computational reports. This article is part of a Special Issue entitled: Calcium Signaling in Health and Disease. Guest Editors: Geert Bultynck, Jacques Haiech, Claus W. Heizmann, Joachim Krebs, and Marc Moreau.
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Affiliation(s)
- Jacques Haiech
- LIT, Therapeutic Innovation Laboratory, UMR7200 CNRS, University of Strasbourg, Faculty of Pharmacy, Illkirch, France.
| | - Yves Gendrault
- ICube, Engineering, Computer and Imaging Science Laboratory, UMR7357 CNRS, University of Strasbourg, Telecom - Strasbourg, France
| | - Marie-Claude Kilhoffer
- LIT, Therapeutic Innovation Laboratory, UMR7200 CNRS, University of Strasbourg, Faculty of Pharmacy, Illkirch, France
| | - Raoul Ranjeva
- LIT, Therapeutic Innovation Laboratory, UMR7200 CNRS, University of Strasbourg, Faculty of Pharmacy, Illkirch, France
| | - Morgan Madec
- ICube, Engineering, Computer and Imaging Science Laboratory, UMR7357 CNRS, University of Strasbourg, Telecom - Strasbourg, France
| | - Christophe Lallement
- ICube, Engineering, Computer and Imaging Science Laboratory, UMR7357 CNRS, University of Strasbourg, Telecom - Strasbourg, France
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Ruggiu F, Gizzi P, Galzi JL, Hibert M, Haiech J, Baskin I, Horvath D, Marcou G, Varnek A. Quantitative structure-property relationship modeling: a valuable support in high-throughput screening quality control. Anal Chem 2014; 86:2510-20. [PMID: 24479843 DOI: 10.1021/ac403544k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Evaluation of important pharmacokinetic properties such as hydrophobicity by high-throughput screening (HTS) methods is a major issue in drug discovery. In this paper, we present measurements of the chromatographic hydrophobicity index (CHI) on a subset of the French chemical library Chimiothèque Nationale (CN). The data were used in quantitative structure-property relationship (QSPR) modeling in order to annotate the CN. An algorithm is proposed to detect problematic molecules with large prediction errors, called outliers. In order to find an explanation for these large discrepancies between predicted and experimental values, these compounds were reanalyzed experimentally. As the first selected outliers indeed had experimental problems, including hydrolysis or sheer absence of expected structure, we herewith propose the use of QSPR as a support tool for quality control of screening data and encourage cooperation between experimental and theoretical teams to improve results. The corrected data were used to produce a model, which is freely available on our web server at http://infochim.u-strasbg.fr/webserv/VSEngine.html .
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Affiliation(s)
- Fiorella Ruggiu
- Laboratoire de Chémoinformatique, UMR 7140 CNRS, Université de Strasbourg , 1 rue Blaise Pascal, 67000 Strasbourg, France
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Madec M, Gendrault Y, Lallement C, Haiech J. A game-of-life like simulator for design-oriented modeling of BioBricks in synthetic biology. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2012:5462-5. [PMID: 23367165 DOI: 10.1109/embc.2012.6347230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This paper deals with the development of a new simulator that will be very helpful to establish new accurate and predictive design-oriented models for the BioBricks used in synthetic biology. The simulator uses the principle of the game-of-life: molecules can move on a grid and, at every iteration, binding and dissociation rules are applied when two molecules are on same node. The principle is elementary but it can highlight interesting biological phenomenon. Those can be modeled by mathematical equations to achieve design-oriented models. In this case, the simulator also helps to make to link between mathematical parameters and the microscopic parameters. A first version of the software has been implemented in MATLAB. It permits to retrieve very interesting results, such as the Hill's equation and the properties of Hill's coefficient.
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Affiliation(s)
- Morgan Madec
- Institut d’Electronique du Solide et des Systèmes (InESS Institute of Electronics for Solids and Systems), Université de Strasbourg (Unistra) and the Centre National de Recherches Scientifiques (CNRS), UMR7163, Strasbourg, France.
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Abstract
Abstract Although personalized medicine appears to be a truism, medical doctors are still generally trained in an old-fashioned manner with a focus on reactive treatment. The aim of this paper is to emphasize the evolution of life sciences into a more predictive science, where the development of quantitative models is starting to take place. Personalized medicine is a consequence of such paradigm shift. To keep up with the change, the various actors within the health system must be trained in a completely different manner, focusing on the ability to work as part of a multidisciplinary team that includes medical doctors, nurses, engineers in medical imaging, and others who collect information from patients. In addition, these teams should include modelers that are able to integrate the flood of data into predictive and quantitative models. The challenge of implementing new training methods in line with the shift is a major bottleneck to the emergence and success of personalized medicine in our societies.
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Affiliation(s)
- Jacques Haiech
- School of Biotechnology, University of Strasbourg, Strasbourg, France.
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Gendrault Y, Madec M, Wlotzko V, Andraud M, Lallement C, Haiech J. Using digital electronic design flow to create a Genetic Design Automation tool. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2012:5530-3. [PMID: 23367182 DOI: 10.1109/embc.2012.6347247] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Synthetic bio-systems become increasingly more complex and their development is lengthy and expensive. In the same way, in microelectronics, the design process of very complex circuits has benefited from many years of experience. It is now partly automated through Electronic Design Automation tools. Both areas present analogies that can be used to create a Genetic Design Automation tool inspired from EDA tools used in digital electronics. This tool would allow moving away from a totally manual design of bio-systems to assisted conception. This ambitious project is presented in this paper, with a deep focus on the tool that automatically generates models of bio-systems directly usable in electronic simulators.
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Affiliation(s)
- Y Gendrault
- Institut d’Electronique du Solide et des Systèmes (InESS Institute of Electronics for Solids and Systems), Université de Strasbourg(Unistra) and the Centre National de Recherches Scientifiques (CNRS),UMR7163, Strasbourg, France.
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Audran E, Dagher R, Gioria S, Tsvetkov PO, Kulikova AA, Didier B, Villa P, Makarov AA, Kilhoffer MC, Haiech J. A general framework to characterize inhibitors of calmodulin: use of calmodulin inhibitors to study the interaction between calmodulin and its calmodulin binding domains. Biochim Biophys Acta 2013; 1833:1720-31. [PMID: 23333870 DOI: 10.1016/j.bbamcr.2013.01.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Revised: 01/01/2013] [Accepted: 01/03/2013] [Indexed: 01/29/2023]
Abstract
The prominent role of Ca(2+) in cell physiology is mediated by a whole set of proteins involved in Ca(2+)-signal generation, deciphering and arrest. Among these intracellular proteins, calmodulin (CaM) known as a prototypical calcium sensor, serves as a ubiquitous carrier of the intracellular calcium signal in all eukaryotic cell types. CaM is assumed to be involved in many diseases including Parkinson, Alzheimer, and rheumatoid arthritis. Defects in some of many reaction partners of CaM might be responsible for disease symptoms. Several classes of drugs bind to CaM with unwanted side effects rather than specific therapeutic use. Thus, it may be more promising to concentrate at searching for pharmacological interferences with the CaM target proteins, in order to find tools for dissecting and investigating CaM-regulatory and modulatory functions in cells. In the present study, we have established a screening assay based on fluorescence polarization (FP) to identify a diverse set of small molecules that disrupt the regulatory function of CaM. The FP-based CaM assay consists in the competition of two fluorescent probes and a library of chemical compounds for binding to CaM. Screening of about 5300 compounds (Strasbourg Academic Library) by displacement of the probe yielded 39 compounds in a first step, from which 6 were selected. Those 6 compounds were characterized by means of calorimetry studies and by competitive displacement of two fluorescent probes interacting with CaM. Moreover, those small molecules were tested for their capability to displace 8 different CaM binding domains from CaM. Our results show that these CaM/small molecules interactions are not functionally equivalent. The strategy that has been set up for CaM is a general model for the development and validation of other CaM interactors, to decipher their mode of action, or rationally design more specific CaM antagonists. Moreover, this strategy may be used for other protein binding assays intended to screen for molecules with preferred binding activity. This article is part of a Special Issue entitled: 12th European Symposium on Calcium.
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Abstract
Understanding the role of calmodulin (CaM) in calcium signal transduction implies to describe the -calcium-dependent molecular mechanism of interaction of CaM with the various CaM-binding domains (CBD). In order to fulfill this aim, we have developed a new strategy and the afferent techniques to quantify the interaction of CaM with any CBD as a function of calcium concentration. Excel software has been used to deconvolute the experimental data and to obtain the macroscopic constants characterizing the system. We are illustrating our approach on six different CaM/CBD. This strategy may be used to analyze the interaction between any calcium-binding protein and its targets.
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Affiliation(s)
- Emilie Audran
- Faculté de Pharmacie, Laboratoire d'Innovation Thérapeutique, URM 7200, Université de Strasbourg, F-Illkirch, France
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Haiech J, Ranjeva R, Kilhoffer MC. Biologie des systèmes et ingénierie biologique modifient la découverte et le développement des médicaments. Med Sci (Paris) 2012; 28:207-12. [DOI: 10.1051/medsci/2012282020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gasparik V, Daubeuf F, Hachet-Haas M, Rohmer F, Gizzi P, Haiech J, Galzi JL, Hibert M, Bonnet D, Frossard N. Prodrugs of a CXC Chemokine-12 (CXCL12) Neutraligand Prevent Inflammatory Reactions in an Asthma Model in Vivo. ACS Med Chem Lett 2012; 3:10-4. [PMID: 24900366 DOI: 10.1021/ml200017d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 12/09/2011] [Indexed: 11/29/2022] Open
Abstract
Chalcone 4 (compound 1) is a small molecule that neutralizes the CXC chemokine CXCL12 and prevents it from acting on the CXCR4 and CXCR7 receptors. To overcome its poor solubility in aqueous buffers, we designed highly soluble analogues of compound 1, phosphate, l-seryl, and sulfate, all inactive by themselves on CXCL12 but when cleaved in vivo into 1, highly active locally at a low dose in a mouse airway hypereosinophilia model.
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Affiliation(s)
- Vincent Gasparik
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, Faculté
de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - François Daubeuf
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, Faculté
de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Muriel Hachet-Haas
- Biotechnologie et signalisation
cellulaire, UMR 7242 CNRS/Université de Strasbourg, ESBS, Bld Sébastien Brant, 67412 Illkirch, France
| | - François Rohmer
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, Faculté
de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Patrick Gizzi
- Biotechnologie et signalisation
cellulaire, UMR 7242 CNRS/Université de Strasbourg, ESBS, Bld Sébastien Brant, 67412 Illkirch, France
| | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, Faculté
de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Jean-Luc Galzi
- Biotechnologie et signalisation
cellulaire, UMR 7242 CNRS/Université de Strasbourg, ESBS, Bld Sébastien Brant, 67412 Illkirch, France
| | - Marcel Hibert
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, Faculté
de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Dominique Bonnet
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, Faculté
de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
| | - Nelly Frossard
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS/Université de Strasbourg, Faculté
de Pharmacie, 74 route du Rhin, 67401 Illkirch, France
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Haiech J, Audran E, Fève M, Ranjeva R, Kilhoffer MC. Revisiting intracellular calcium signaling semantics. Biochimie 2011; 93:2029-37. [DOI: 10.1016/j.biochi.2011.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Accepted: 05/06/2011] [Indexed: 10/18/2022]
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Gendrault Y, Madec M, Lallement C, Pecheux F, Haiech J. Synthetic biology methodology and model refinement based on microelectronic modeling tools and languages. Biotechnol J 2011; 6:796-806. [PMID: 21681965 DOI: 10.1002/biot.201100083] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Revised: 05/20/2011] [Accepted: 05/30/2011] [Indexed: 01/19/2023]
Abstract
In microelectronics, the design of new systems is based on a proven time-tested design flow. The goal of this paper is to determine to what extend this design flow can be adapted to biosystem design. The presented methodology is based on a top-down approach and consists of starting with a behavioral description of the system to progressively refine it to its final low-level system representation, composed of DNA parts. To preserve accuracy and simplicity, the design flow relies on refined models of biological mechanisms, which can be expressed by the hardware description languages and simulation tools traditionally used in microelectronics. A case study, the complete modeling of a priority encoder, is presented to demonstrate the effectiveness of the method.
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Affiliation(s)
- Yves Gendrault
- Institut d'Electronique du Solide et des Systemes (InESS), UMR 7163-CNRS / UdS, Strasbourg, France
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Haiech J, Heizmann CW, Krebs J. The 11(th) Meeting of the European Calcium Society. Biochim Biophys Acta 2011; 1813:908. [PMID: 21496679 DOI: 10.1016/j.bbamcr.2011.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- Jacques Haiech
- UMR7175, Ecole Supérieure de Biotechnologie de Strasbourg (ESBS) and Faculté de Pharmacie, Université de Strasbourg, Illkirch, France.
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Amelot N, Carrouche A, Danoun S, Bourque S, Haiech J, Pugin A, Ranjeva R, Grima-Pettenati J, Mazars C, Briere C. Cryptogein, a fungal elicitor, remodels the phenylpropanoid metabolism of tobacco cell suspension cultures in a calcium-dependent manner. Plant Cell Environ 2011; 34:149-61. [PMID: 20946589 DOI: 10.1111/j.1365-3040.2010.02233.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Plant cells use calcium-based signalling pathways to transduce biotic and/or abiotic stimuli into adaptive responses. However, little is known about the coupling between calcium signalling, transcriptional regulation and the downstream biochemical processes. To understand these relationships better, we challenged tobacco BY-2 cells with cryptogein and evaluated how calcium transients (monitored through the calcium sensor aequorin) impact (1) transcript levels of phenylpropanoid genes (assessed by RT-qPCR); and (2) derived-phenolic compounds (analysed by mass spectrometry). Most genes of the phenylpropanoid pathway were up-regulated by cryptogein and cell wall-bound phenolic compounds accumulated (mainly 5-hydroxyferulic acid). The accumulation of both transcripts and phenolics was calcium-dependent. The transcriptional regulation of phenylpropanoid genes was correlated in a non-linear manner with stimulus intensity and with components of the cryptogein-induced calcium signature. In addition, calmodulin inhibitors increased the sensitivity of cells to low concentrations of cryptogein. These results led us to propose a model of coupling between the cryptogein signal, calcium signalling and the transcriptional response, exerting control of transcription through the coordinated action of two decoding modules exerting opposite effects.
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Affiliation(s)
- Nicolas Amelot
- Université de Toulouse, UPS, UMR 5546 Surfaces Cellulaires et Signalisation chez les Végétaux, BP 42617, F-31326, Castanet-Tolosan, France
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Dagher R, Peng S, Gioria S, Fève M, Zeniou M, Zimmermann M, Pigault C, Haiech J, Kilhoffer MC. A general strategy to characterize calmodulin-calcium complexes involved in CaM-target recognition: DAPK and EGFR calmodulin binding domains interact with different calmodulin-calcium complexes. Biochim Biophys Acta 2010; 1813:1059-67. [PMID: 21115073 DOI: 10.1016/j.bbamcr.2010.11.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Revised: 11/07/2010] [Accepted: 11/10/2010] [Indexed: 01/07/2023]
Abstract
Calmodulin (CaM) is a ubiquitous Ca(2+) sensor regulating many biochemical processes in eukaryotic cells. Its interaction with a great variety of different target proteins has led to the fundamental question of its mechanism of action. CaM exhibits four "EF hand" type Ca(2+) binding sites. One way to explain CaM functioning is to consider that the protein interacts differently with its target proteins depending on the number of Ca(2+) ions bound to it. To test this hypothesis, the binding properties of three entities known to interact with CaM (a fluorescent probe and two peptide analogs to the CaM binding sites of death associated protein kinase (DAPK) and of EGFR) were investigated using a quantitative approach based on fluorescence polarization (FP). Probe and peptide interactions with CaM were studied using a titration matrix in which both CaM and calcium concentrations were varied. Experiments were performed with SynCaM, a hybrid CaM able to activate CaM dependent enzymes from mammalian and plant cells. Results show that the interaction between CaM and its targets is regulated by the number of calcium ions bound to the protein, namely one for the DAPK peptide, two for the probe and four for the EGFR peptide. The approach used provides a new tool to elaborate a typology of CaM-targets, based on their recognition by the various CaM-Ca(n) (n=0-4) complexes. This article is part of a Special Issue entitled: 11th European Symposium on Calcium.
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Affiliation(s)
- Rania Dagher
- Therapeutic Innovation Laboratory, UMR CNRS 7200, University Strasbourg, Faculty of Pharmacy, 74, route de Rhin, 67401 Illkirch Cedrex, France
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Zimmermann M, Atmanene C, Xu Q, Fouillen L, Van Dorsselaer A, Bonnet D, Marsol C, Hibert M, Sanglier-Cianferani S, Pigault C, McNamara LK, Watterson DM, Haiech J, Kilhoffer MC. Homodimerization of the death-associated protein kinase catalytic domain: development of a new small molecule fluorescent reporter. PLoS One 2010; 5:e14120. [PMID: 21152427 PMCID: PMC2994711 DOI: 10.1371/journal.pone.0014120] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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: 10/26/2009] [Accepted: 11/01/2010] [Indexed: 11/19/2022] Open
Abstract
Background Death-Associated Protein Kinase (DAPK) is a member of the Ca2+/calmodulin regulated serine/threonine protein kinases. Its biological function has been associated with induced cell death, and in vivo use of selective small molecule inhibitors of DAPK catalytic activity has demonstrated that it is a potential therapeutic target for treatment of brain injuries and neurodegenerative diseases. Methodology/Principal Findings In the in vitro study presented here, we describe the homodimerization of DAPK catalytic domain and the crucial role played by its basic loop structure that is part of the molecular fingerprint of death protein kinases. Nanoelectrospray ionization mass spectrometry of DAPK catalytic domain and a basic loop mutant DAPK protein performed under a variety of conditions was used to detect the monomer-dimer interchange. A chemical biological approach was used to find a fluorescent probe that allowed us to follow the oligomerization state of the protein in solution. Conclusions/Significance The use of this combined biophysical and chemical biology approach facilitated the elucidation of a monomer-dimer equilibrium in which the basic loop plays a key role, as well as an apparent allosteric conformational change reported by the fluorescent probe that is independent of the basic loop structure.
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Affiliation(s)
- Michael Zimmermann
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200, Centre National de la Recherche Scientifique, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Cédric Atmanene
- Laboratoire de Spectrométrie de Masse BioOrganique, Département Sciences Analytiques, Institut Pluridisciplinaire Hubert Curien, Unité Mixte de Recherche 7178, Centre National de la Recherche Scientifique, Université de Strasbourg, Strasbourg, France
| | - Qingyan Xu
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200, Centre National de la Recherche Scientifique, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
- School of Science, Xiamen University, Xiamen, Fujian Province, People's Republic of China
| | - Laetitia Fouillen
- Laboratoire de Spectrométrie de Masse BioOrganique, Département Sciences Analytiques, Institut Pluridisciplinaire Hubert Curien, Unité Mixte de Recherche 7178, Centre National de la Recherche Scientifique, Université de Strasbourg, Strasbourg, France
| | - Alain Van Dorsselaer
- Laboratoire de Spectrométrie de Masse BioOrganique, Département Sciences Analytiques, Institut Pluridisciplinaire Hubert Curien, Unité Mixte de Recherche 7178, Centre National de la Recherche Scientifique, Université de Strasbourg, Strasbourg, France
| | - Dominique Bonnet
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200, Centre National de la Recherche Scientifique, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Claire Marsol
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200, Centre National de la Recherche Scientifique, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Marcel Hibert
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200, Centre National de la Recherche Scientifique, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Sarah Sanglier-Cianferani
- Laboratoire de Spectrométrie de Masse BioOrganique, Département Sciences Analytiques, Institut Pluridisciplinaire Hubert Curien, Unité Mixte de Recherche 7178, Centre National de la Recherche Scientifique, Université de Strasbourg, Strasbourg, France
| | - Claire Pigault
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200, Centre National de la Recherche Scientifique, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | | | | | - Jacques Haiech
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200, Centre National de la Recherche Scientifique, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
- * E-mail:
| | - Marie-Claude Kilhoffer
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200, Centre National de la Recherche Scientifique, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
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