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5 results on '"ANR-17-CE15-0029,ZIKAHOST,LES FACTEURS DE L'HÔTE ASSOCIÉS À LA NEUROPATHOGÉNICITÉ DU VIRUS ZIKA(2017)"'

1. Biochemistry of the Respiratory Syncytial Virus L Protein Embedding RNA Polymerase and Capping Activities

Author

Priscila Sutto-Ortiz, Jean-François Eléouët, François Ferron, Etienne Decroly, Aix Marseille Université (AMU), Virologie et Immunologie Moléculaires (VIM (UR 0892)), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), European Virus Bioinformatics Center [Jena], Architecture et fonction des macromolécules biologiques (AFMB), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), ANR-19-CE11-0017,DecRisP,Décrypter les synthèses d'ARN par les pneumovirus(2019), ANR-20-CE11-0024,VIRAGE,Bases structurales et fonctionnelles de la methylation epitranscriptomique de genomes de virus à (+)ARN(2020), and ANR-17-CE15-0029,ZIKAHOST,LES FACTEURS DE L'HÔTE ASSOCIÉS À LA NEUROPATHOGÉNICITÉ DU VIRUS ZIKA(2017)

Subjects
polymerase, Infectious Diseases, human respiratory syncytial virus antiviral polymerase capping methyltransferase polyribonucleotidyl transferase drug design, capping, drug design, Virology, [SDV]Life Sciences [q-bio], methyltransferase, human respiratory syncytial virus, antiviral, polyribonucleotidyl transferase
Abstract

International audience; The human respiratory syncytial virus (RSV) is a negative-sense, single-stranded RNA virus. It is the major cause of severe acute lower respiratory tract infection in infants, the elderly population, and immunocompromised individuals. There is still no approved vaccine or antiviral treatment against RSV disease, but new monoclonal prophylactic antibodies are yet to be commercialized, and clinical trials are in progress. Hence, urgent efforts are needed to develop efficient therapeutic treatments. RSV RNA synthesis comprises viral transcription and replication that are catalyzed by the large protein (L) in coordination with the phosphoprotein polymerase cofactor (P), the nucleoprotein (N), and the M2-1 transcription factor. The replication/transcription is orchestrated by the L protein, which contains three conserved enzymatic domains: the RNA-dependent RNA polymerase (RdRp), the polyribonucleotidyl transferase (PRNTase or capping), and the methyltransferase (MTase) domain. These activities are essential for the RSV replicative cycle and are thus considered as attractive targets for the development of therapeutic agents. In this review, we summarize recent findings about RSV L domains structure that highlight how the enzymatic activities of RSV L domains are interconnected, discuss the most relevant and recent antivirals developments that target the replication/transcription complex, and conclude with a perspective on identified knowledge gaps that enable new research directions.

Published
2023

2. Internal RNA 2′O-methylation in the HIV-1 genome counteracts ISG20 nuclease-mediated antiviral effect

Author

Kazzi, Priscila El, Rabah, Nadia, Chamontin, Célia, Poulain, Lina, Ferron, François, Debart, Françoise, Canard, Bruno, Missé, Dorothée, Coutard, Bruno, Nisole, Sébastien, Decroly, Etienne, Architecture et fonction des macromolécules biologiques (AFMB), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Toulon (UTLN), Institut de Recherche en Infectiologie de Montpellier (IRIM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), European Virus Bioinformatics Center [Jena], Institut des Biomolécules Max Mousseron [Pôle Chimie Balard] (IBMM), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM), Université de Montpellier (UM), Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM), Unité des Virus Emergents (UVE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Fondation pour la Recherche MedicaleFRM-REPLI80C/U160Nationale de la Recherche sur le SIDA et les Hepatites viralesANRS-ECTZ80C/U160, Nationale de la Recherche sur le SIDA et les Hepatites viralesANRS-ECTZ80C/U160Fondation pour la Recherche MedicaleFRM-REPLI80C/U160, ANR-20-CE11-0024,VIRAGE,Bases structurales et fonctionnelles de la methylation epitranscriptomique de genomes de virus à (+)ARN(2020), and ANR-17-CE15-0029,ZIKAHOST,LES FACTEURS DE L'HÔTE ASSOCIÉS À LA NEUROPATHOGÉNICITÉ DU VIRUS ZIKA(2017)

Subjects
[SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology
Abstract

RNA 2'O-methylation is a 'self' epitranscriptomic modification allowing discrimination between host and pathogen. Indeed, human immunodeficiency virus 1 (HIV-1) induces 2'O-methylation of its genome by recruiting the cellular FTSJ3 methyltransferase, thereby impairing detection by RIG-like receptors. Here, we show that RNA 2'O-methylations interfere with the antiviral activity of interferon-stimulated gene 20-kDa protein (ISG20). Biochemical experiments showed that ISG20-mediated degradation of 2'O-methylated RNA pauses two nucleotides upstream of and at the methylated residue. Structure-function analysis indicated that this inhibition is due to steric clash between ISG20 R53 and D90 residues and the 2'O-methylated nucleotide. We confirmed that hypomethylated HIV-1 genomes produced in FTSJ3-KO cells were more prone to in vitro degradation by ISG20 than those produced in cells expressing FTSJ3. Finally, we found that reverse-transcription of hypomethylated HIV-1 was impaired in T cells by interferon-induced ISG20, demonstrating the direct antagonist effect of 2'O-methylation on ISG20-mediated antiviral activity.Despite highly effective antiretroviral therapies, the human immunodeficiency virus (HIV-1) remains a major public health threat. Its pathogenesis depends on its ability to establish a persistent infection in cells of the immune system. Our study highlights a new insight into how HIV-1 evades early restriction by the immune system. We showed that 2′O-methylation marks found inside HIV-1 RNA promote viral evasion from the antiviral action of the interferon-stimulated gene 20-kDa protein (ISG20), an innate immune restriction factor with a nuclease activity. By disrupting the level of 2′O-methylation of the HIV-1 genome, we demonstrated that ISG20 impairs the reverse transcription process of hypomethylated viruses, as a result of viral RNA decay.

Published
2022

3. Favipiravir Inhibits Mayaro Virus Infection in Mice

Author

Julien Pompon, Antoine Nougairède, Ai-rada Pintong, Rodolphe Hamel, Pierre Roques, Michèle Bengue, Valérie Choumet, Xavier de Lamballerie, Dorothée Missé, Florian Liegeois, Génétique et évolution des maladies infectieuses (GEMI), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Unité des Virus Emergents (UVE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Hospitalier Universitaire Méditerranée Infection (IHU Marseille), Institut Pasteur de Guinée, Réseau International des Instituts Pasteur (RIIP), Immunologie des maladies virales, auto-immunes, hématologiques et bactériennes (IMVA-HB), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Environnement et Risques infectieux - Environment and Infectious Risks (ERI), Institut Pasteur [Paris] (IP)-Université Paris Cité (UPCité), Université Paris Cité (UPCité), This work was supported by grants from the Agence Nationale de la Recherche (ANR-17-CE15-00029). This work was also publicly funded through the French National Research Agency under the 'Investissements d’avenir' program, with the reference ANR-16-IDEX-0006. Michele Bengue was supported by a fellowship from the Infectiopôle Sud foundation., ANR-16-IDEX-0006,MUSE,MUSE(2016), ANR-17-CE15-0029,ZIKAHOST,LES FACTEURS DE L'HÔTE ASSOCIÉS À LA NEUROPATHOGÉNICITÉ DU VIRUS ZIKA(2017), Delmas, Francine, MUSE - - MUSE2016 - ANR-16-IDEX-0006 - IDEX - VALID, LES FACTEURS DE L'HÔTE ASSOCIÉS À LA NEUROPATHOGÉNICITÉ DU VIRUS ZIKA - - ZIKAHOST2017 - ANR-17-CE15-0029 - AAPG2017 - VALID, and Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC)

Subjects
mayaro, Virus Replication, Liver disease, Mice, Chlorocebus aethiops, [SDV.MP.VIR] Life Sciences [q-bio]/Microbiology and Parasitology/Virology, [SDV.MHEP.ME] Life Sciences [q-bio]/Human health and pathology/Emerging diseases, 0303 health sciences, [SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases, biology, Alanine Transaminase, QR1-502, 3. Good health, Infectious Diseases, Liver, Pyrazines, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Female, antiviral drug, medicine.drug_class, Alphavirus, Favipiravir, favipiravir, Microbiology, Antiviral Agents, Virus, Article, Cell Line, 03 medical and health sciences, In vivo, Virology, medicine, Animals, Aspartate Aminotransferases, Vero Cells, 030304 developmental biology, 030306 microbiology, business.industry, Alphavirus Infections, biology.organism_classification, medicine.disease, Amides, In vitro, Mice, Inbred C57BL, Disease Models, Animal, arbovirus, Viral replication, Antiviral drug, business
Abstract

International audience; Mayaro virus (MAYV) is an emergent alphavirus that causes MAYV fever. It is often associated with debilitating symptoms, particularly arthralgia and myalgia. MAYV infection is becoming a considerable health issue that, unfortunately, lacks a specific antiviral treatment. Favipiravir, a broad-spectrum antiviral drug, has recently been shown to exert anti-MAYV activity in vitro. In the present study, the potential of Favipiravir to inhibit MAYV replication in an in vivo model was evaluated. Immunocompetent mice were orally administrated 300 mg/kg/dose of Favipiravir at pre-, concurrent-, or post-MAYV infection. The results showed a significant reduction in infectious viral particles and viral RNA transcripts in the tissues and blood of the pre- and concurrently treated infected mice. A significant reduction in the presence of both viral RNA transcript and infectious viral particles in the tissue and blood of pre- and concurrently treated infected mice was observed. By contrast, Favipiravir treatment post-MAYV infection did not result in a reduction in viral replication. Interestingly, Favipiravir strongly decreased the blood levels of the liver disease markers aspartate- and alanine aminotransferase in the pre- and concurrently treated MAYV-infected mice. Taken together, these results suggest that Favipiravir is a potent antiviral drug when administered in a timely manner.

Published
2021

4. FHL1 is a major host factor for chikungunya virus infection

Author

Cécile Doyen, Thérèse Couderc, Alexis Brugier, R. Juntas-Morales, Philippe Roingeard, Rabah Ben Yaou, Julien Burlaud-Gaillard, Etienne Simon-Loriere, Mohamed Lamine Hafirassou, Sophia Rafasse, Vasiliya Kril, Pierre-Olivier Vidalain, Laura Pezzi, Gisèle Bonne, Lucie Gueneau, Xavier de Lamballerie, Marc Lecuit, Laurent Meertens, Anne Bertrand-Legout, Beate M. Kümmerer, Ali Amara, Lucie Bonnet-Madin, Thibaud Goupil, Constance Delaugerre, Athena Labeau, Monsef Benkirane, Génomes, biologie cellulaire et thérapeutiques (GenCellDi (UMR_S_944)), Collège de France (CdF (institution))-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Hôpital Saint-Louis, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7), Biologie des Infections - Biology of Infection, Institut Pasteur [Paris] (IP)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institute of Virology [Bonn, Germany], University of Bonn Medical Centre, Génomique évolutive des virus à ARN - Evolutionary genomics of RNA viruses, Institut Pasteur [Paris] (IP), Morphogénèse et antigénicité du VIH et du virus des Hépatites (MAVIVH - U1259 Inserm - CHRU Tours ), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de génétique humaine (IGH), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Unité des Virus Emergents (UVE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques (LCBPT - UMR 8601), Université Paris Descartes - Paris 5 (UPD5)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Equipe Chimie et Biologie, Modélisation et Immunologie pour la Thérapie (CBMIT), Université Paris Descartes - Paris 5 (UPD5)-Université Paris Descartes - Paris 5 (UPD5), Génomique virale et vaccination, Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS), Centre de recherche en Myologie – U974 SU-INSERM, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Département de neurologie [Montpellier], Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université de Montpellier (UM), Laboratoire de Virologie [CHU Saint-Louis], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de maladies infectieuses et tropicales [Saint-Louis], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Service des Maladies infectieuses et tropicales [CHU Necker], CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), This study received funding from the French Government’s Investissement d’Avenir program, Laboratoire d’Excellence ‘Integrative Biology of Emerging Infectious Diseases’ (ANR-10-LABX-62-IBEID), the ‘Investissements d’Avenir’ program (ANR-10-IHUB-0002, ANR-15-CE15-00029 ZIKAHOST and the INCEPTION program ANR-16-CONV-0005), Institut Pasteur, Inserm and European Research Council. Viruses were provided by the Europe and Virus Archive, which has received funding from the EU Horizon 2020 research and innovation program under grant agreement 653316. The authors thank the EA7310, Laboratoire de Virologie, Université de Corse-Inserm for funding the doctoral position of L.P., ANR-10-LABX-0062,IBEID,Integrative Biology of Emerging Infectious Diseases(2010), ANR-17-CE15-0029,ZIKAHOST,LES FACTEURS DE L'HÔTE ASSOCIÉS À LA NEUROPATHOGÉNICITÉ DU VIRUS ZIKA(2017), ANR-16-CONV-0005,INCEPTION,Institut Convergences pour l'étude de l'Emergence des Pathologies au Travers des Individus et des populatiONs(2016), Institut National de la Santé et de la Recherche Médicale (INSERM)-Collège de France (CdF (institution))-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut Pasteur [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Pasteur [Paris], Université de Tours-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche en Myologie, Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), Université Paris Diderot - Paris 7 (UPD7)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Aix Marseille Université (AMU)-Institut de Recherche pour le Développement (IRD)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS)-Institut Pasteur [Paris], Hôpital Gui de Chauliac [Montpellier]-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université Montpellier 1 (UM1)-Université de Montpellier (UM), BUISINE, Soline, Integrative Biology of Emerging Infectious Diseases - - IBEID2010 - ANR-10-LABX-0062 - LABX - VALID, LES FACTEURS DE L'HÔTE ASSOCIÉS À LA NEUROPATHOGÉNICITÉ DU VIRUS ZIKA - - ZIKAHOST2017 - ANR-17-CE15-0029 - AAPG2017 - VALID, and Institut Convergences pour l'étude de l'Emergence des Pathologies au Travers des Individus et des populatiONs - - INCEPTION2016 - ANR-16-CONV-0005 - CONV - VALID

Subjects
Male, Permissiveness, viruses, Viral pathogenesis, Muscle Proteins, Host-Derived Cellular Factors, Alphavirus, Viral Nonstructural Proteins, Virus Replication, medicine.disease_cause, Virus, Myoblasts, Mice, 03 medical and health sciences, medicine, Animals, Humans, O'nyong-nyong Virus, Chikungunya, Cells, Cultured, 030304 developmental biology, Host factor, [SDV.MP.VIR] Life Sciences [q-bio]/Microbiology and Parasitology/Virology, 0303 health sciences, Multidisciplinary, biology, 030306 microbiology, Intracellular Signaling Peptides and Proteins, virus diseases, Fibroblasts, LIM Domain Proteins, biology.organism_classification, Virology, FHL1, 3. Good health, HEK293 Cells, Viral replication, Host-Pathogen Interactions, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Chikungunya Fever, RNA, Viral, Female, Chikungunya virus, Protein Binding
Abstract

Chikungunya virus (CHIKV) is a re-emerging alphavirus that is transmitted to humans by mosquito bites and causes musculoskeletal and joint pain1,2. Despite intensive investigations, the human cellular factors that are critical for CHIKV infection remain unknown, hampering the understanding of viral pathogenesis and the development of anti-CHIKV therapies. Here we identified the four-and-a-half LIM domain protein 1 (FHL1)3 as a host factor that is required for CHIKV permissiveness and pathogenesis in humans and mice. Ablation of FHL1 expression results in the inhibition of infection by several CHIKV strains and o’nyong-nyong virus, but not by other alphaviruses and flaviviruses. Conversely, expression of FHL1 promotes CHIKV infection in cells that do not normally express it. FHL1 interacts directly with the hypervariable domain of the nsP3 protein of CHIKV and is essential for the replication of viral RNA. FHL1 is highly expressed in CHIKV-target cells and is particularly abundant in muscles3,4. Dermal fibroblasts and muscle cells derived from patients with Emery–Dreifuss muscular dystrophy that lack functional FHL15 are resistant to CHIKV infection. Furthermore, CHIKV infection is undetectable in Fhl1-knockout mice. Overall, this study shows that FHL1 is a key factor expressed by the host that enables CHIKV infection and identifies the interaction between nsP3 and FHL1 as a promising target for the development of anti-CHIKV therapies. FHL1 is a key factor expressed by humans and mice that is required for chikungunya virus infection and is therefore a promising target for the development of therapies against chikungunya virus.

Published
2019

5. Aedes mosquito salivary components and their effect on the immune response to arboviruses

Author

GUERRERO, David, Cantaert, Tineke, Missé, Dorothée, Institut Pasteur du Cambodge, Réseau International des Instituts Pasteur (RIIP), Interhuman Arbovirus Transmission (MIVEGEC-iHAT), Biologie des infections virales: Emergence, DIFfusion, Impact, Contrôle, Elimination (EDIFICE), Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut de Recherche pour le Développement (IRD), This work was supported by the Calmette-Yersin Ph.D. scholarship and funded by the French National Research Agency (ANR-15-CE15-00029) and a Wellcome/HHMI International research scholarship (208710/Z/17/Z)., and ANR-17-CE15-0029,ZIKAHOST,LES FACTEURS DE L'HÔTE ASSOCIÉS À LA NEUROPATHOGÉNICITÉ DU VIRUS ZIKA(2017)

Subjects
viruses, lcsh:QR1-502, Review, [SDV.IMM.II]Life Sciences [q-bio]/Immunology/Innate immunity, lcsh:Microbiology, immune response, Aedes spp, Cellular and Infection Microbiology, arbovirus, [SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, saliva composition, parasitic diseases, mosquito saliva
Abstract

International audience; Vector-borne diseases are responsible for over a billion infections each year and nearly one million deaths. Mosquito-borne dengue virus, West Nile, Japanese encephalitis, Zika, Chikungunya, and Rift Valley Fever viruses constitute major public health problems in regions with high densities of arthropod vectors. During the initial step of the transmission cycle, vector, host, and virus converge at the bite site, where local immune cells interactwith the vector’s saliva. Hematophagous mosquito saliva is a mixture of bioactive components known to modulate vertebrate hemostasis, immunity, and inflammation during the insect’s feeding process. The capacity of mosquito saliva to modulate the host immune response has been well-studied over the last few decades and has led to the consensus that the presence of saliva is linked to the enhancement of virus transmission, host susceptibility, disease progression, viremia levels, and mortality. We review some of the major aspects of the interactions between mosquito saliva and the host immune response that may be useful for future studies on the control of arboviruses.

Published
2020

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