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Khiar S, Lucas-Hourani M, Nisole S, Smith N, Helynck O, Bourgine M, Ruffié C, Herbeuval JP, Munier-Lehmann H, Tangy F, Vidalain PO. Identification of a small molecule that primes the type I interferon response to cytosolic DNA. Sci Rep 2017; 7:2561. [PMID: 28566766 PMCID: PMC5451460 DOI: 10.1038/s41598-017-02776-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 04/19/2017] [Indexed: 01/22/2023] Open
Abstract
The type I interferon response plays a pivotal role in host defense against infectious agents and tumors, and promising therapeutic approaches rely on small molecules designed to boost this system. To identify such compounds, we developed a high-throughput screening assay based on HEK-293 cells expressing luciferase under the control of Interferon-Stimulated Response Elements (ISRE). An original library of 10,000 synthetic compounds was screened, and we identified a series of 1H-benzimidazole-4-carboxamide compounds inducing the ISRE promoter sequence, specific cellular Interferon-Stimulated Genes (ISGs), and the phosphorylation of Interferon Regulatory Factor (IRF) 3. ISRE induction by ChX710, a prototypical member of this chemical series, was dependent on the adaptor MAVS and IRF1, but was IRF3 independent. Although it was unable to trigger type I IFN secretion per se, ChX710 efficiently primed cellular response to transfected plasmid DNA as assessed by potent synergistic effects on IFN-β secretion and ISG expression levels. This cellular response was dependent on STING, a key adaptor involved in the sensing of cytosolic DNA and immune activation by various pathogens, stress signals and tumorigenesis. Our results demonstrate that cellular response to cytosolic DNA can be boosted with a small molecule, and potential applications in antimicrobial and cancer therapies are discussed.
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Affiliation(s)
- Samira Khiar
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR3569, Paris, France
| | | | - Sébastien Nisole
- Mécanismes d'action des interférons et voies bio-thérapeutiques, Université Paris Descartes, INSERM UMR-S1124, Paris, France
| | - Nikaïa Smith
- Chimie & Biologie, Modélisation et Immunologie pour la Thérapie (CBMIT), Université Paris Descartes, CNRS UMR8601, Paris, France
| | - Olivier Helynck
- Unité de Chimie et Biocatalyse, Institut Pasteur, CNRS UMR3523, Paris, France
| | - Maryline Bourgine
- Unité de Virologie Moléculaire et Vaccinologie, Institut Pasteur, Paris, France
| | - Claude Ruffié
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR3569, Paris, France
| | - Jean-Philippe Herbeuval
- Chimie & Biologie, Modélisation et Immunologie pour la Thérapie (CBMIT), Université Paris Descartes, CNRS UMR8601, Paris, France
| | | | - Frédéric Tangy
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR3569, Paris, France.
| | - Pierre-Olivier Vidalain
- Chimie & Biologie, Modélisation et Immunologie pour la Thérapie (CBMIT), Université Paris Descartes, CNRS UMR8601, Paris, France.
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Lucas-Hourani M, Munier-Lehmann H, El Mazouni F, Malmquist NA, Harpon J, Coutant EP, Guillou S, Helynck O, Noel A, Scherf A, Phillips MA, Tangy F, Vidalain PO, Janin YL. Original 2-(3-Alkoxy-1H-pyrazol-1-yl)azines Inhibitors of Human Dihydroorotate Dehydrogenase (DHODH). J Med Chem 2015; 58:5579-98. [PMID: 26079043 PMCID: PMC4516315 DOI: 10.1021/acs.jmedchem.5b00606] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Following our discovery of human dihydroorotate dehydrogenase (DHODH) inhibition by 2-(3-alkoxy-1H-pyrazol-1-yl)pyrimidine derivatives as well as 2-(4-benzyl-3-ethoxy-5-methyl-1H-pyrazol-1-yl)-5-methylpyridine, we describe here the syntheses and evaluation of an array of azine-bearing analogues. As in our previous report, the structure-activity study of this series of human DHODH inhibitors was based on a phenotypic assay measuring measles virus replication. Among other inhibitors, this round of syntheses and biological evaluation iteration led to the highly active 5-cyclopropyl-2-(4-(2,6-difluorophenoxy)-3-isopropoxy-5-methyl-1H-pyrazol-1-yl)-3-fluoropyridine. Inhibition of DHODH by this compound was confirmed in an array of in vitro assays, including enzymatic tests and cell-based assays for viral replication and cellular growth. This molecule was found to be more active than the known inhibitors of DHODH, brequinar and teriflunomide, thus opening perspectives for its use as a tool or for the design of an original series of immunosuppressive agent. Moreover, because other series of inhibitors of human DHODH have been found to also affect Plasmodium falciparum DHODH, all the compounds were assayed for their effect on P. falciparum growth. However, the modest in vitro inhibition solely observed for two compounds did not correlate with their inhibition of P. falciparum DHODH.
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Affiliation(s)
- Marianne Lucas-Hourani
- †Unité de Génomique Virale et Vaccination, Département de Virologie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,‡Unité Mixte de Recherche 3569, Centre National de la Recherche Scientifique, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Hélène Munier-Lehmann
- §Unité Mixte de Recherche 3523, Centre National de la Recherche Scientifique, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,∥Unité de Chimie et Biocatalyse, Département de Biologie Structurale et Chimie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Farah El Mazouni
- ⊥Department of Pharmacology, University of Texas Southwestern Medical Center at Dallas, 6001 Forest Park Boulevard, Dallas, Texas 75390-9041, United States
| | - Nicholas A Malmquist
- #Unité de Biologie des Interactions Hôte-Parasite, Département de Parasitologie et Mycologie, Institut Pasteur, 25 rue du Dr. Roux, 75724 Paris Cedex 15, France.,^Unité 1201, Institut National de la Santé et de la Recherche Médicale, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,+Equipe de Recherche Labellisée 9195, Centre National de la Recherche Scientifique, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Jane Harpon
- #Unité de Biologie des Interactions Hôte-Parasite, Département de Parasitologie et Mycologie, Institut Pasteur, 25 rue du Dr. Roux, 75724 Paris Cedex 15, France.,^Unité 1201, Institut National de la Santé et de la Recherche Médicale, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,+Equipe de Recherche Labellisée 9195, Centre National de la Recherche Scientifique, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Eloi P Coutant
- §Unité Mixte de Recherche 3523, Centre National de la Recherche Scientifique, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,∥Unité de Chimie et Biocatalyse, Département de Biologie Structurale et Chimie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Sandrine Guillou
- §Unité Mixte de Recherche 3523, Centre National de la Recherche Scientifique, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,∥Unité de Chimie et Biocatalyse, Département de Biologie Structurale et Chimie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Olivier Helynck
- §Unité Mixte de Recherche 3523, Centre National de la Recherche Scientifique, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,∥Unité de Chimie et Biocatalyse, Département de Biologie Structurale et Chimie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Anne Noel
- §Unité Mixte de Recherche 3523, Centre National de la Recherche Scientifique, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,∥Unité de Chimie et Biocatalyse, Département de Biologie Structurale et Chimie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Artur Scherf
- #Unité de Biologie des Interactions Hôte-Parasite, Département de Parasitologie et Mycologie, Institut Pasteur, 25 rue du Dr. Roux, 75724 Paris Cedex 15, France.,^Unité 1201, Institut National de la Santé et de la Recherche Médicale, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,+Equipe de Recherche Labellisée 9195, Centre National de la Recherche Scientifique, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Margaret A Phillips
- ⊥Department of Pharmacology, University of Texas Southwestern Medical Center at Dallas, 6001 Forest Park Boulevard, Dallas, Texas 75390-9041, United States
| | - Frédéric Tangy
- †Unité de Génomique Virale et Vaccination, Département de Virologie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,‡Unité Mixte de Recherche 3569, Centre National de la Recherche Scientifique, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Pierre-Olivier Vidalain
- †Unité de Génomique Virale et Vaccination, Département de Virologie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,‡Unité Mixte de Recherche 3569, Centre National de la Recherche Scientifique, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Yves L Janin
- §Unité Mixte de Recherche 3523, Centre National de la Recherche Scientifique, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.,∥Unité de Chimie et Biocatalyse, Département de Biologie Structurale et Chimie, Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France
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Vidalain PO, Lucas-Hourani M, Helynck O, Tangy F, Munier-Lehmann H. [Stimulation of the antiviral innate immune response by pyrimidine biosynthesis inhibitors: a surprise of phenotypic screening]. Med Sci (Paris) 2015; 31:98-104. [PMID: 25658737 DOI: 10.1051/medsci/20153101019] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
RNA viruses are responsible for major human diseases such as flu, bronchitis, dengue, hepatitis C or measles. They also represent an emerging threat because of increased worldwide exchanges and human populations penetrating more and more natural ecosystems. Recent progresses in our understanding of cellular pathways controlling viral replication suggest that compounds targeting host cell functions, rather than the virus itself, could inhibit a large panel of RNA viruses. In particular, several academic laboratories and private companies are now seeking molecules that stimulate the host innate antiviral response. One appealing strategy is to identify molecules that induce the large cluster of antiviral genes known as Interferon-Stimulated Genes (ISGs). To reach this goal, we have developed a phenotypic assay based on human cells transfected with a luciferase reporter gene under control of an interferon-stimulated response element (ISRE). This system was used in a high-throughput screening of chemical libraries comprising around 54,000 compounds. Among validated hits, compound DD264 was shown to boost the innate immune response in cell cultures, and displayed a broad-spectrum antiviral activity. While deciphering its mode of action, DD264 was found to target the fourth enzyme of de novo pyrimidine biosynthesis, namely the dihydroorotate dehydrogenase (DHODH). Thus, our data unraveled a yet unsuspected link between pyrimidine biosynthesis and the innate antiviral response.
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Affiliation(s)
- Pierre-Olivier Vidalain
- Unité de génomique virale et vaccination, département de virologie, Institut Pasteur, CNRS UMR 3569, 28, rue du Docteur Roux, 75724 Paris Cedex 15, France
| | - Marianne Lucas-Hourani
- Unité de génomique virale et vaccination, département de virologie, Institut Pasteur, CNRS UMR 3569, 28, rue du Docteur Roux, 75724 Paris Cedex 15, France
| | - Olivier Helynck
- Unité de chimie et biocatalyse, département de biologie structurale et chimie Institut Pasteur, CNRS UMR3523, 28, rue du Docteur Roux, 75724 Paris Cedex 15, France
| | - Frédéric Tangy
- Unité de génomique virale et vaccination, département de virologie, Institut Pasteur, CNRS UMR 3569, 28, rue du Docteur Roux, 75724 Paris Cedex 15, France
| | - Hélène Munier-Lehmann
- Unité de chimie et biocatalyse, département de biologie structurale et chimie Institut Pasteur, CNRS UMR3523, 28, rue du Docteur Roux, 75724 Paris Cedex 15, France
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4
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Munier-Lehmann H, Lucas-Hourani M, Guillou S, Helynck O, Zanghi G, Noel A, Tangy F, Vidalain PO, Janin YL. Original 2-(3-alkoxy-1H-pyrazol-1-yl)pyrimidine derivatives as inhibitors of human dihydroorotate dehydrogenase (DHODH). J Med Chem 2015; 58:860-77. [PMID: 25558988 DOI: 10.1021/jm501446r] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
From a research program aimed at the design of new chemical entities followed by extensive screening on various models of infectious diseases, an original series of 2-(3-alkoxy-1H-pyrazol-1-yl)pyrimidines endowed with notable antiviral properties were found. Using a whole cell measles virus replication assay, we describe here some aspects of the iterative process that, from 2-(4-benzyl-3-ethoxy-5-methyl-1H-pyrazol-1-yl)pyrimidine, led to 2-(4-(2,6-difluorophenoxy)-3-isopropoxy-5-methyl-1H-pyrazol-1-yl)-5-ethylpyrimidine and a 4000-fold improvement of antiviral activity with a subnanomolar level of inhibition. Moreover, recent precedents in the literature describing antiviral derivatives acting at the level of the de novo pyrimidine biosynthetic pathway led us to determine that the mode of action of this series is based on the inhibition of the cellular dihydroorotate dehydrogenase (DHODH), the fourth enzyme of this pathway. Biochemical studies with recombinant human DHODH led us to measure IC50 as low as 13 nM for the best example of this original series when using 2,3-dimethoxy-5-methyl-6-(3-methyl-2-butenyl)-1,4-benzoquinone (coenzyme Q1) as a surrogate for coenzyme Q10, the cofactor of this enzyme.
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Affiliation(s)
- Hélène Munier-Lehmann
- Unité de Chimie et Biocatalyse, Département de Biologie Structurale et Chimie, Institut Pasteur , 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France
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5
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Grandin C, Lucas-Hourani M, Clavel M, Taborik F, Vabret A, Tangy F, Contamin H, Vidalain PO. Evidence for an intranasal immune response to human respiratory syncytial virus infection in cynomolgus macaques. J Gen Virol 2014; 96:782-792. [PMID: 25537374 DOI: 10.1099/vir.0.000039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
There is no large-scale therapy available against human respiratory syncytial virus (hRSV), a major pathogen responsible for acute respiratory diseases. Macaques represent an interesting animal model to evaluate potential treatments because of their genetic, anatomical and immunological proximity with humans. However, the parameters that influence hRSV growth and control in this model are still poorly understood. We have documented in the following study the influence of age as well as repeated infections on the virological, clinical and immunological parameters of this animal model. Following intranasal inoculation, hRSV replicated in the upper respiratory tract for less than 15 days with no clinical signs regardless of age. Interestingly, we observed the induction of a local immune response at the nasal mucosa as assessed by expression profiles of inflammatory and IFN-stimulated genes. Animals also developed specific antibodies and were immune to reinfection. Thus, we showed that even in infant macaques, intranasal hRSV infection induced both local and systemic immune responses to efficiently control the virus.
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Affiliation(s)
- Clément Grandin
- CNRS, UMR3569, Paris, France.,Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France.,Cynbiose SA, Marcy-l'Etoile, France
| | - Marianne Lucas-Hourani
- CNRS, UMR3569, Paris, France.,Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
| | | | | | - Astrid Vabret
- Université de Caen-Basse-Normandie, EA 4655-U2RM, Laboratoire de Virologie, CHU de Caen, France
| | - Frédéric Tangy
- CNRS, UMR3569, Paris, France.,Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
| | | | - Pierre-Olivier Vidalain
- CNRS, UMR3569, Paris, France.,Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
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Lucas-Hourani M, Munier-Lehmann H, Helynck O, Komarova A, Desprès P, Tangy F, Vidalain PO. High-throughput screening for broad-spectrum chemical inhibitors of RNA viruses. J Vis Exp 2014. [PMID: 24838008 DOI: 10.3791/51222] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
RNA viruses are responsible for major human diseases such as flu, bronchitis, dengue, Hepatitis C or measles. They also represent an emerging threat because of increased worldwide exchanges and human populations penetrating more and more natural ecosystems. A good example of such an emerging situation is chikungunya virus epidemics of 2005-2006 in the Indian Ocean. Recent progresses in our understanding of cellular pathways controlling viral replication suggest that compounds targeting host cell functions, rather than the virus itself, could inhibit a large panel of RNA viruses. Some broad-spectrum antiviral compounds have been identified with host target-oriented assays. However, measuring the inhibition of viral replication in cell cultures using reduction of cytopathic effects as a readout still represents a paramount screening strategy. Such functional screens have been greatly improved by the development of recombinant viruses expressing reporter enzymes capable of bioluminescence such as luciferase. In the present report, we detail a high-throughput screening pipeline, which combines recombinant measles and chikungunya viruses with cellular viability assays, to identify compounds with a broad-spectrum antiviral profile.
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Affiliation(s)
- Marianne Lucas-Hourani
- Unité de Génomique Virale et Vaccination, Virology Department, Institut Pasteur, CNRS UMR3569
| | - Hélène Munier-Lehmann
- Unité de Chimie et Biocatalyse, Biochemistry and Structural Biology Department, Institut Pasteur, CNRS UMR3523
| | - Olivier Helynck
- Unité de Chimie et Biocatalyse, Biochemistry and Structural Biology Department, Institut Pasteur, CNRS UMR3523
| | - Anastassia Komarova
- Unité de Génomique Virale et Vaccination, Virology Department, Institut Pasteur, CNRS UMR3569
| | - Philippe Desprès
- Unité des Interactions Moléculaires Flavivirus-Hôtes, Virology Department, Institut Pasteur
| | - Frédéric Tangy
- Unité de Génomique Virale et Vaccination, Virology Department, Institut Pasteur, CNRS UMR3569
| | - Pierre-Olivier Vidalain
- Unité de Génomique Virale et Vaccination, Virology Department, Institut Pasteur, CNRS UMR3569;
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Lucas-Hourani M, Dauzonne D, Jorda P, Cousin G, Lupan A, Helynck O, Caignard G, Janvier G, André-Leroux G, Khiar S, Escriou N, Desprès P, Jacob Y, Munier-Lehmann H, Tangy F, Vidalain PO. Inhibition of pyrimidine biosynthesis pathway suppresses viral growth through innate immunity. PLoS Pathog 2013; 9:e1003678. [PMID: 24098125 PMCID: PMC3789760 DOI: 10.1371/journal.ppat.1003678] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [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: 04/22/2013] [Accepted: 08/16/2013] [Indexed: 12/19/2022] Open
Abstract
Searching for stimulators of the innate antiviral response is an appealing approach to develop novel therapeutics against viral infections. Here, we established a cell-based reporter assay to identify compounds stimulating expression of interferon-inducible antiviral genes. DD264 was selected out of 41,353 compounds for both its immuno-stimulatory and antiviral properties. While searching for its mode of action, we identified DD264 as an inhibitor of pyrimidine biosynthesis pathway. This metabolic pathway was recently identified as a prime target of broad-spectrum antiviral molecules, but our data unraveled a yet unsuspected link with innate immunity. Indeed, we showed that DD264 or brequinar, a well-known inhibitor of pyrimidine biosynthesis pathway, both enhanced the expression of antiviral genes in human cells. Furthermore, antiviral activity of DD264 or brequinar was found strictly dependent on cellular gene transcription, nuclear export machinery, and required IRF1 transcription factor. In conclusion, the antiviral property of pyrimidine biosynthesis inhibitors is not a direct consequence of pyrimidine deprivation on the virus machinery, but rather involves the induction of cellular immune response. Our therapeutic arsenal to treat viral diseases is extremely limited, and there is a critical need for molecules that could be used against multiple viruses. Among possible strategies, there is a growing interest for molecules stimulating cellular defense mechanisms. We recently developed a functional assay to identify stimulators of antiviral genes, and selected compound DD264 from a chemical library using this approach. While searching for its mode of action, we identified this molecule as an inhibitor of pyrimidine biosynthesis, a metabolic pathway that fuels the cell with pyrimidine nucleobases for both DNA and RNA synthesis. Interestingly, it was recently shown that inhibitors of this metabolic pathway prevent the replication of RNA viruses. Here, we established a functional link between pyrimidine biosynthesis pathway and the induction of antiviral genes, and demonstrated that pyrimidine biosynthesis inhibitors like DD264 or brequinar critically rely on cellular immune response to inhibit virus growth. Thus, pyrimidine deprivation is not directly responsible for the antiviral activity of pyrimidine biosynthesis inhibitors, which rather involves the induction of a metabolic stress and subsequent triggering of cellular defense mechanisms.
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Affiliation(s)
- Marianne Lucas-Hourani
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Daniel Dauzonne
- Institut Curie, Centre de Recherche, Paris, France
- CNRS, UMR176, Paris, France
| | - Pierre Jorda
- Institut Curie, Centre de Recherche, Paris, France
- CNRS, UMR176, Paris, France
| | - Gaëlle Cousin
- Institut Curie, Centre de Recherche, Paris, France
- CNRS, UMR176, Paris, France
| | - Alexandru Lupan
- Institut Pasteur, Unité de Chimie et Biocatalyse, Paris, France
- CNRS, UMR3523, Paris, France
| | - Olivier Helynck
- Institut Pasteur, Unité de Chimie et Biocatalyse, Paris, France
- CNRS, UMR3523, Paris, France
| | - Grégory Caignard
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Geneviève Janvier
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Gwénaëlle André-Leroux
- Institut Pasteur, Unité de Biochimie Structurale, Paris, France
- CNRS, UMR 3528, Paris, France
| | - Samira Khiar
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Nicolas Escriou
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Philippe Desprès
- Institut Pasteur, Unité Interactions moléculaires Flavivirus-Hôtes, Paris, France
| | - Yves Jacob
- CNRS, UMR3569, Paris, France
- Institut Pasteur, Unité de Génétique Moléculaire des Virus à ARN, Paris, France
- Dana-Farber Cancer Institute, Center for Cancer Systems Biology (CCSB) and Department of Cancer Biology, Boston, Massachusetts, United States of America
| | - Hélène Munier-Lehmann
- Institut Pasteur, Unité de Chimie et Biocatalyse, Paris, France
- CNRS, UMR3523, Paris, France
- * E-mail: (HML); (FT); (POV)
| | - Frédéric Tangy
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
- * E-mail: (HML); (FT); (POV)
| | - Pierre-Olivier Vidalain
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
- * E-mail: (HML); (FT); (POV)
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Judith D, Mostowy S, Bourai M, Gangneux N, Lelek M, Lucas-Hourani M, Cayet N, Jacob Y, Prévost MC, Pierre P, Tangy F, Zimmer C, Vidalain PO, Couderc T, Lecuit M. Species-specific impact of the autophagy machinery on Chikungunya virus infection. EMBO Rep 2013; 14:534-44. [PMID: 23619093 DOI: 10.1038/embor.2013.51] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 03/20/2013] [Accepted: 03/21/2013] [Indexed: 01/01/2023] Open
Abstract
Chikungunya virus (CHIKV) is a recently re-emerged arbovirus that triggers autophagy. Here, we show that CHIKV interacts with components of the autophagy machinery during its replication cycle, inducing a cytoprotective effect. The autophagy receptor p62 protects cells from death by binding ubiquitinated capsid and targeting it to autophagolysosomes. By contrast, the human autophagy receptor NDP52--but not its mouse orthologue--interacts with the non-structural protein nsP2, thereby promoting viral replication. These results highlight the distinct roles of p62 and NDP52 in viral infection, and identify NDP52 as a cellular factor that accounts for CHIKV species specificity.
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9
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Caignard G, Lucas-Hourani M, Dhondt KP, Labernardière JL, Petit T, Jacob Y, Horvat B, Tangy F, Vidalain PO. The V protein of Tioman virus is incapable of blocking type I interferon signaling in human cells. PLoS One 2013; 8:e53881. [PMID: 23342031 PMCID: PMC3544715 DOI: 10.1371/journal.pone.0053881] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 12/04/2012] [Indexed: 12/17/2022] Open
Abstract
The capacity of a virus to cross species barriers is determined by the development of bona fide interactions with cellular components of new hosts, and in particular its ability to block IFN-α/β antiviral signaling. Tioman virus (TioV), a close relative of mumps virus (MuV), has been isolated in giant fruit bats in Southeast Asia. Nipah and Hendra viruses, which are present in the same bat colonies, are highly pathogenic in human. Despite serological evidences of close contacts between TioV and human populations, whether TioV is associated to some human pathology remains undetermined. Here we show that in contrast to the V protein of MuV, the V protein of TioV (TioV-V) hardly interacts with human STAT2, does not degrade STAT1, and cannot block IFN-α/β signaling in human cells. In contrast, TioV-V properly binds to human STAT3 and MDA5, and thus interferes with IL-6 signaling and IFN-β promoter induction in human cells. Because STAT2 binding was previously identified as a host restriction factor for some Paramyxoviridae, we established STAT2 sequence from giant fruit bats, and binding to TioV-V was tested. Surprisingly, TioV-V interaction with STAT2 from giant fruit bats is also extremely weak and barely detectable. Altogether, our observations question the capacity of TioV to appropriately control IFN-α/β signaling in both human and giant fruit bats that are considered as its natural host.
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Affiliation(s)
- Grégory Caignard
- Unité de Génomique Virale et Vaccination, Centre National de la Recherche Scientifique, URA-3015, Virology Department, Institut Pasteur, Paris, France
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Lucas-Hourani M, Lupan A, Desprès P, Thoret S, Pamlard O, Dubois J, Guillou C, Tangy F, Vidalain PO, Munier-Lehmann H. A phenotypic assay to identify Chikungunya virus inhibitors targeting the nonstructural protein nsP2. ACTA ACUST UNITED AC 2012; 18:172-9. [PMID: 22983165 DOI: 10.1177/1087057112460091] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Chikungunya virus (CHIKV) is a mosquito-transmitted pathogen responsible for an acute infection of abrupt onset, characterized by high fever, polyarthralgia, myalgia, headaches, chills, and rash. In 2006, CHIKV was responsible for an epidemic outbreak of unprecedented magnitude in the Indian Ocean, stressing the need for therapeutic approaches. Since then, we have acquired a better understanding of CHIKV biology, but we are still missing active molecules against this reemerging pathogen. We recently reported that the nonstructural nsP2 protein of CHIKV induces a transcriptional shutoff that allows the virus to block cellular antiviral response. This was demonstrated using various luciferase-based reporter gene assays, including a trans-reporter system where Gal4 DNA binding domain is fused to Fos transcription factor. Here, we turned this assay into a high-throughput screening system to identify small molecules targeting nsP2-mediated shutoff. Among 3040 molecules tested, we identified one natural compound that partially blocks nsP2 activity and inhibits CHIKV replication in vitro. This proof of concept suggests that similar functional assays could be developed to target other viral proteins mediating a cellular shutoff and identify innovative therapeutic molecules.
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Pellet J, Tafforeau L, Lucas-Hourani M, Navratil V, Meyniel L, Achaz G, Guironnet-Paquet A, Aublin-Gex A, Caignard G, Cassonnet P, Chaboud A, Chantier T, Deloire A, Demeret C, Le Breton M, Neveu G, Jacotot L, Vaglio P, Delmotte S, Gautier C, Combet C, Deleage G, Favre M, Tangy F, Jacob Y, Andre P, Lotteau V, Rabourdin-Combe C, Vidalain PO. ViralORFeome: an integrated database to generate a versatile collection of viral ORFs. Nucleic Acids Res 2009; 38:D371-8. [PMID: 20007148 PMCID: PMC2808970 DOI: 10.1093/nar/gkp1000] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Large collections of protein-encoding open reading frames (ORFs) established in a versatile recombination-based cloning system have been instrumental to study protein functions in high-throughput assays. Such ‘ORFeome’ resources have been developed for several organisms but in virology, plasmid collections covering a significant fraction of the virosphere are still needed. In this perspective, we present ViralORFeome 1.0 (http://www.viralorfeome.com), an open-access database and management system that provides an integrated set of bioinformatic tools to clone viral ORFs in the Gateway® system. ViralORFeome provides a convenient interface to navigate through virus genome sequences, to design ORF-specific cloning primers, to validate the sequence of generated constructs and to browse established collections of virus ORFs. Most importantly, ViralORFeome has been designed to manage all possible variants or mutants of a given ORF so that the cloning procedure can be applied to any emerging virus strain. A subset of plasmid constructs generated with ViralORFeome platform has been tested with success for heterologous protein expression in different expression systems at proteome scale. ViralORFeome should provide our community with a framework to establish a large collection of virus ORF clones, an instrumental resource to determine functions, activities and binding partners of viral proteins.
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Affiliation(s)
- J Pellet
- INSERM U851, Lyon, IFR128-BioSciences, Université Lyon 1, Université de Lyon, Lyon, France
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Ozden S, Lucas-Hourani M, Ceccaldi PE, Basak A, Valentine M, Benjannet S, Hamelin J, Jacob Y, Mamchaoui K, Mouly V, Desprès P, Gessain A, Butler-Browne G, Chrétien M, Tangy F, Vidalain PO, Seidah NG. Inhibition of Chikungunya Virus Infection in Cultured Human Muscle Cells by Furin Inhibitors. J Biol Chem 2008; 283:21899-908. [DOI: 10.1074/jbc.m802444200] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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