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MacGibeny MA, Koyuncu OO, Wirblich C, Schnell MJ, Enquist LW. Retrograde axonal transport of rabies virus is unaffected by interferon treatment but blocked by emetine locally in axons. PLoS Pathog 2018; 14:e1007188. [PMID: 30028873 PMCID: PMC6070286 DOI: 10.1371/journal.ppat.1007188] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 08/01/2018] [Accepted: 06/28/2018] [Indexed: 12/25/2022] Open
Abstract
Neuroinvasive viruses, such as alpha herpesviruses (αHV) and rabies virus (RABV), initially infect peripheral tissues, followed by invasion of the innervating axon termini. Virus particles must undergo long distance retrograde axonal transport to reach the neuron cell bodies in the peripheral or central nervous system (PNS/CNS). How virus particles hijack the axonal transport machinery and how PNS axons respond to and regulate infection are questions of significant interest. To track individual virus particles, we constructed a recombinant RABV expressing a P-mCherry fusion protein, derived from the virulent CVS-N2c strain. We studied retrograde RABV transport in the presence or absence of interferons (IFN) or protein synthesis inhibitors, both of which were reported previously to restrict axonal transport of αHV particles. Using neurons from rodent superior cervical ganglia grown in tri-chambers, we showed that axonal exposure to type I or type II IFN did not alter retrograde axonal transport of RABV. However, exposure of axons to emetine, a translation elongation inhibitor, blocked axonal RABV transport by a mechanism that was not dependent on protein synthesis inhibition. The minority of RABV particles that still moved retrograde in axons in the presence of emetine, moved with slower velocities and traveled shorter distances. Emetine’s effect was specific to RABV, as transport of cellular vesicles was unchanged. These findings extend our understanding of how neuroinvasion is regulated in axons and point toward a role for emetine as an inhibitory modulator of RABV axonal transport. Rabies virus (RABV) and alpha herpesviruses (αHV) (e.g. herpes simplex virus) evolved to enter the nervous system efficiently each time they infect a host. In most mammals, RABV reaches the brain, causing a fatal encephalitis. Whereas, αHV remain in the peripheral nervous system in a quiescent but reactivatable state. Despite distinct clinical outcomes, both RABV and αHV must invade axons and repurpose the axon transport machinery to travel long distances toward the neuronal cell bodies where virus replication occurs. How virus particles hijack the transport machinery and how axons respond to and regulate infection are questions of significant interest. We investigated how axonal RABV transport is regulated by exposing axons to interferons or protein synthesis inhibitors, both of which restrict transport of αHV particles. Unlike αHV infection, exposure of isolated axons to interferons has no effect on RABV neuroinvasion. However, RABV transport is blocked by axonal exposure to the translation elongation inhibitor, emetine, via a mechanism that does not depend on protein synthesis inhibition. The effect of emetine is not due to a global inhibition of axon transport because emetine does not limit axonal transport of cellular vesicles. Therefore, emetine may be a novel inhibitory modulator of RABV axonal transport.
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Affiliation(s)
- Margaret A. MacGibeny
- Department of Molecular Biology and Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey, United States of America
| | - Orkide O. Koyuncu
- Department of Molecular Biology and Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey, United States of America
| | - Christoph Wirblich
- Department of Microbiology and Immunology, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America
| | - Matthias J. Schnell
- Department of Microbiology and Immunology, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America
| | - Lynn W. Enquist
- Department of Molecular Biology and Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey, United States of America
- * E-mail:
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Abstract
The family Rhabdoviridae has a non-segmented single stranded negative-sense RNA and its genome ranges in size from approximately 11 kb to almost 16 kb. It is one of the most ecologically diverse families of RNA viruses with members infecting a wide range of organisms. The five structural protein genes are arranged in the same linear order (3'-N-P-M-G-L-5') and may be interspersed with one more additional accessory gene. For many years, a full of knowledge of the rhabdoviridae has been established on extensive studies of two kinds of prototype viruses; vesicular stomatitis virus (VSV) and rabies virus (RABV). Among them, the genus Lyssavirus includes RABV and rabies-related viruses naturally infect mammals and chiropterans via bite-exposure by rabid animals and finally cause fatal encephalitis. In this review, we describe the sketch of the various virological features of the Rhabdoviridae, especially focusing on VSV and RABV.
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Abstract
Until recently, single-stranded negative sense RNA viruses (ssNSVs) were one of only a few important human viral pathogens, which could not be created from cDNA. The inability to manipulate their genomes hindered their detailed genetic analysis. A key paper from Conzelmann's laboratory in 1994 changed this with the publication of a method to recover rabies virus (RABV) from cDNA. This discovery not only dramatically changed the broader field of ssNSV biology but also opened a whole new avenue for studying RABV pathogenicity, developing novel RABV vaccines as well a new generation of RABV-based vaccine vectors, and creating research tools important in neuroscience such as neuronal tracing.
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Affiliation(s)
- Emily A Gomme
- Department of Microbiology and Immunology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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Rabies vaccines. Vaccines (Basel) 2008. [DOI: 10.1016/b978-1-4160-3611-1.50031-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
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Hilaire G. Endogenous noradrenaline affects the maturation and function of the respiratory network: Possible implication for SIDS. Auton Neurosci 2006; 126-127:320-31. [PMID: 16603418 DOI: 10.1016/j.autneu.2006.01.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2005] [Accepted: 01/30/2006] [Indexed: 10/24/2022]
Abstract
Breathing is a vital, rhythmic motor act that is required for blood oxygenation and oxygen delivery to the whole body. Therefore, the brainstem network responsible for the elaboration of the respiratory rhythm must function from the very first moments of extrauterine life. In this review, it is shown that the brainstem noradrenergic system plays a pivotal role in both the modulation and the maturation of the respiratory rhythm generator. Compelling evidence are reported demonstrating that genetically induced alterations of the noradrenergic system in mice affect the prenatal maturation and the perinatal function of the respiratory rhythm generator and have drastic consequences on postnatal survival. Sudden Infant Death Syndrome (SIDS), the leader cause of infant death in industrialised countries, may result from cardiorespiratory disorders during sleep. As several cases of SIDS have been observed in infants having noradrenergic deficits, a possible link between prenatal alteration of the noradrenergic system, altered maturation and function of the respiratory network and SIDS is suggested.
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Affiliation(s)
- Gérard Hilaire
- Groupe d'étude des Réseaux Moteurs, FRE CNRS 2722, 280 boulevard Sainte Marguerite, 13009 Marseille, France.
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Zanella S, Roux JC, Viemari JC, Hilaire G. Possible modulation of the mouse respiratory rhythm generator by A1/C1 neurones. Respir Physiol Neurobiol 2005; 153:126-38. [PMID: 16309976 DOI: 10.1016/j.resp.2005.09.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2005] [Revised: 09/12/2005] [Accepted: 09/15/2005] [Indexed: 11/25/2022]
Abstract
Although compelling evidence exist that the respiratory rhythm generator is modulated by endogenous noradrenaline released from pontine A5 and A6 neurones, we examined whether medullary catecholaminergic neurones also participated in respiratory rhythm modulation. Experiments were performed in neonatal (postnatal days 0-6, P0-P6) and young mice (P14-P18) using "en bloc" medullary preparations (pons resected) and transverse medullary slices. In "en bloc" preparations, blockade of medullary alpha2 adrenoceptors with yohimbine and activation of catecholamine biosynthesis with L-tyrosine significantly depresses and facilitates the respiratory rhythm, respectively. In slices from neonatal and young mice, blockade of medullary alpha2 adrenoceptors also depressed the respiratory rhythm. Yohimbine local applications and lesion-ablation experiments of the dorsal medulla revealed implication of A1/C1 neurones in the yohimbine depressing effect. Although the mechanisms responsible for the yohimbine-depressing effect remain to be elucidated, our in vitro results in neonatal and young mice suggest that endogenous catecholamines released from A1/C1 neurones participate in respiratory rhythm modulation via medullary alpha2 adrenoceptors.
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Affiliation(s)
- Sebastien Zanella
- FRE CNRS 2722, Université de la Méditerranée, 280 Boulevard Sainte-Marguerite, 13009 Marseille, France
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Abstract
Cultures of purified rat embryonic spinal cord motoneurons were used to investigate the capacity of the neurons to survive rabies virus infection in vitro. In crude primary spinal cord cultures, neurons did not survive more than 2 days after rabies virus infection with the fixed strain Challenge Virus Standard. In contrast, virus-infected purified motoneurons resisted cytolysis for at least 7 days, as also did infected motoneurons treated with conditioned medium sampled from rabies virus-infected crude spinal cord cultures. This survival rate was also observed when motoneurons were grown in the presence of astrocytes or fibroblasts and it was not dependent on the presence of growth factors in the culture medium. Moreover, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling experiments showed that only 30% of infected motoneurons were apoptotic after 7 days of infection. In vivo, despite the massive infection of the spinal cord in infected rat neonates, the moderate number of apoptotic cells in the ventral horn suggests that only a few motoneurons were affected by this mechanism of cell death. Morphometric analyses showed that motoneurons' axon elongated at a comparable rate in virus-infected and noninfected cultures, a sign of high metabolic activity maintained in rabies virus-infected motoneurons. In contrast, hippocampus neurons were susceptible to rabies virus infection, because 70% of infected neurons were destroyed within 3 days, a large proportion of them being apoptotic. These experiments suggest that spinal cord motoneurons consist in a neuronal population that survive rabies virus infection because the viral induction of apoptosis is delayed in these neurons. They suggest also that paralyses frequently observed in rabid animals could be the consequence of dysfunctions of the locomotor network or of the spinal cord motoneurons themselves, whose parameters could be studied in vitro.
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Affiliation(s)
- Céline Guigoni
- Groupe d'Etude des Réseaux Moteurs, CNRS, Marseille, France
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Gosztonyi G, Ludwig H. Interactions of viral proteins with neurotransmitter receptors may protect or destroy neurons. Curr Top Microbiol Immunol 2001; 253:121-44. [PMID: 11417131 DOI: 10.1007/978-3-662-10356-2_6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- G Gosztonyi
- Abteilung für Neuropathologie, Freie Universität Berlin, Universitätsklinikum Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany.
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Charlton KM. The pathogenesis of rabies and other lyssaviral infections: recent studies. Curr Top Microbiol Immunol 1994; 187:95-119. [PMID: 7859501 DOI: 10.1007/978-3-642-78490-3_6] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- K M Charlton
- Agriculture Canada, Animal Diseases Research Institute, Nepean, Ontario
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O'Toole D, Mills K, Ellis J, Welch V, Fillerup M. Poliomyelomalacia and ganglioneuritis in a horse with paralytic rabies. J Vet Diagn Invest 1993; 5:94-7. [PMID: 8466989 DOI: 10.1177/104063879300500120] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- D O'Toole
- Wyoming State Veterinary Laboratory, Laramie 82070
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Affiliation(s)
- H Tsiang
- Rabies Unit, Institut Pasteur, Paris, France
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Tsiang H. Virus-neuron interaction: an experimental model. Cell Biol Toxicol 1992; 8:101-5. [PMID: 1359927 DOI: 10.1007/bf00130516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lafay F, Coulon P, Astic L, Saucier D, Riche D, Holley A, Flamand A. Spread of the CVS strain of rabies virus and of the avirulent mutant AvO1 along the olfactory pathways of the mouse after intranasal inoculation. Virology 1991; 183:320-30. [PMID: 2053286 PMCID: PMC7131780 DOI: 10.1016/0042-6822(91)90145-2] [Citation(s) in RCA: 93] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
After intranasal instillation in the mouse, rabies virus (CVS strain) selectively infected olfactory receptor cells. In the main olfactory bulb (MOB), infection was observed in periglomerular, tufted, and mitral cells and in interneurons located in the internal plexiform layer. Beyond the MOB, CVS spread into the brain along the olfactory pathways. This infection is specific to chains of functionally related neurons but at the death of the animal some nuclei remain uninfected. CVS also penetrated the trigeminal system. The avirulent mutant AvO1, carrying a mutation in position 333 of the glycoprotein, infected the olfactory epithelium and the trigeminal nerve as efficiently as CVS. During the second cycle of infection, the mutant was able to infect efficiently periglomerular cells in the MOB and neurons of the horizontal limb of the diagonal band, which indicates that maturation of infective particles is not affected in primarily infected neuronal cells. On the other hand, other neuronal cells permissive for CVS, such as mitral cells or the anterior olfactory nucleus, are completely free of infection with the mutant, indicating that restriction is related to the ability of AvO1 to penetrate several categories of neurons. From these observations, we concluded that CVS should be able to bind several different receptors to penetrate neurons, while the mutant would be unable to recognize some of them.
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Key Words
- aon, anterior olfactory nucleus
- cns, central nervous system
- gaba, gamma aminobutyric acid
- hdb, horizontal limb of the diagonal band
- hrp, horseradish peroxidase
- hsv1, herpes simplex type 1
- ipl, internal plexiform layer
- lc, locus coeruleus
- ld50, lethal dose 50%
- lpa, lateral preoptic area
- mcpo, magnocellular preoptic nucleus
- mhv, murine hepatitis virus
- mob, main olfactory bulb
- pfu, plaque-forming unit
- p.i., post-infection
- scg, superior cervical ganglion
- vsv, vesicular stomatitis virus
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Affiliation(s)
- F Lafay
- Laboratoire de Génétique des Virus, CNRS, Gif sur Yvette, France
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Abstract
Tracing chains of neurones requires the use of transneuronal tracers, which are transferred between connected neurones. The conventional transneuronal tracers used so far produce weak labelling of recipient neurones, probably because only a small amount of tracer is transferred. Live neurotropic viruses are beginning to be used as transneuronal tracers. The viruses are replicated in recipient neurones after transneuronal transfer. This replication, which is a unique characteristic of viruses, produces strong transneuronal labelling. The findings indicate that herpes-viruses in particular represent powerful tools for demonstrating neuronal connections across synapses, for example between peripheral nerves and neurones in the brain.
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Huc C, Escurat M, Djabali K, Derer M, Landon F, Gros F, Portier MM. Phosphorylation of peripherin, an intermediate filament protein, in mouse neuroblastoma NIE 115 cell line and in sympathetic neurons. Biochem Biophys Res Commun 1989; 160:772-9. [PMID: 2719695 DOI: 10.1016/0006-291x(89)92500-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Peripherin, an intermediate filament protein, described recently, is expressed in well defined neuronal populations. We studied the phosphorylation, in vivo, of this protein in mouse neuroblastoma NIE 115 cell line and in sympathetic neurons labelled with [32P]-orthophosphate. The autoradiograms of proteins separated on two-dimensional polyacrylamide gels were compared with the Coomassie-blue stainings. The results show that peripherin occurs as a mixture of phosphorylated and non-phosphorylated isoforms, and that these forms coexist in both differentiated and non-differentiated cells. We demonstrate by cleavage at the unique tryptophan residue, a characteristic shared by most other intermediate filament proteins (IFP), that the phosphorylation sites are located on the amino-terminal half of peripherin as it is for vimentin and desmin. These results are discussed in relation to the organization of the filamentous network constituted by peripherin.
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Affiliation(s)
- C Huc
- College de France, Laboratoire de Biochimie Cellulaire, Paris
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Abstract
The axonal transport of rabies virus (challenge virus strain of fixed virus) was studied in differentiated rat embryonic dorsal root ganglion cells. In addition, we observed the attachment of rabies virus to neuronal extensions and virus production by infected neurons. A compartmentalized cell culture system was used, allowing infection and manipulation of neuronal extensions without exposing the neural soma to the virus. The cultures consisted of 60% large neuronal cells whose extensions exhibited neurofilament structures. Rabies virus demonstrated high binding affinity to unmyelinated neurites, as suggested by assays of virus adsorption and immunofluorescence studies. The rate of axoplasmic transport of virus was 12 to 24 mm/day, including the time required for internalization of the virus into neurites. The virus transport could be blocked by cytochalasin B, vinblastine, and colchicine, none of which negatively affected the production of virus in cells once the infection was established. It was concluded that, for the retrograde transfer of rabies virus by neurites from the periphery to the neuronal soma, the integrity of tubulin- and actin-containing structures is essential. The rat sensory neurons were characterized as permissive, moderately susceptible, but low producers of rabies virus. These neurons were capable of harboring rabies virus for long periods of time and able to release virus into the culture medium without showing any morphological alterations. The involvement of sensory neurons in rabies virus pathogenesis, both in viral transport and as a site for persistent viral infection, is discussed.
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Tsiang H, Superti F. Ammonium chloride and chloroquine inhibit rabies virus infection in neuroblastoma cells. Brief report. Arch Virol 1984; 81:377-82. [PMID: 6148053 DOI: 10.1007/bf01310010] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two lysosomotropic agents, ammonium chloride and chloroquine inhibit the infection of murine neuroblastoma cells by rabies virus. The experiments indicate that rabies virus infects the neuronal cells through an endosome pH dependent entry pathway.
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