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https://www.readbyqxmd.com/read/28884293/human-parainfluenza-virus-type-2-polymerase-complex-recognizes-leader-promoters-of-other-species-belonging-to-the-genus-rubulavirus
#1
Yusuke Matsumoto, Keisuke Ohta, Machiko Nishio
Leader sequence, located at the 3' terminus of paramyxovirus genomes, determines the degree of viral transcription and replication. The essential nucleotides in the leader sequence that influence viral propagation, however, have not been investigated in detail. In the present study, we show that polymerase complex of human parainfluenza virus type 2 (hPIV2) uses a luciferase-encoding hPIV2 mini-genome possessing the leader sequence from other closely related viruses as a template. Furthermore, we demonstrate that although hPIV2 polymerase complex can recognize the leader sequence of hPIV4B, mumps virus (MuV) and PIV5 as well as Newcastle disease virus (NDV), it cannot recognize measles virus, hPIV1, Sendai virus (SeV) or hPIV3...
September 7, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28860100/a-polymerase-chain-reaction-assay-for-detection-of-virulent-and-attenuated-strains-of-duck-plague-virus
#2
Liji Xie, Zhixun Xie, Li Huang, Sheng Wang, Jiaoling Huang, Yanfang Zhang, Tingting Zeng, Sisi Luo
Sequence analysis of duck plague virus (DPV) revealed that there was a 528bp (B fragment) deletion within the UL2 gene of DPV attenuated vaccine strain in comparison with field virulent strains. The finding of gene deletion provides a potential differentiation test between DPV virulent strain and attenuated strain based on their UL2 gene sizes. Thus we developed a polymerase chain reaction (PCR) assay targeting to the DPV UL2 gene for simultaneous detection of DPV virulent strain and attenuated strain, 827bp for virulent strain and 299bp for attenuated strain...
August 30, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28842134/reciprocal-complementation-of-bovine-parainfluenza-virus-type-3-lacking-either-the-membrane-or-fusion-gene
#3
Marina Takada, Ryosuke Matsuura, Takehiro Kokuho, Takamitsu Tsuboi, Ken-Ichiro Kameyama, Kaoru Takeuchi
Two defective bovine parainfluenza virus type 3 (BPIV3) strains were generated, one lacking the membrane (M) protein gene and expressing EGFP (ΔM-EGFP) and the other lacking the fusion (F) protein gene and expressing mStrawberry (ΔF-mSB), by supplying deficient proteins in trans. When Madin-Darby bovine kidney (MDBK) cells were co-infected with ΔM-EGFP and ΔF-mSB at a multiplicity of infection (MOI) of 0.1, complemented viruses were easily obtained. Complemented viruses grew as efficiently as wild-type BPIV3 and could be passaged in MDBK cell cultures even at an MOI of 0...
August 24, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28840181/measles-virus-nucleocapsid-protein-modulates-the-signal-regulatory-protein-%C3%AE-1-sirp%C3%AE-1-to-enhance-osteoclast-differentiation-in-paget-s-disease-of-bone
#4
Kumaran Sundaram, Yuvaraj Sambandam, Srinivasan Shanmugarajan, D Sudhaker Rao, Sakamuri V Reddy
Paget's disease of bone (PDB) is a chronic localized bone disorder in an elderly population. Environmental factors such as paramyxovirus are implicated in PDB and measles virus nucleocapsid protein (MVNP) has been shown to induce pagetic osteoclasts (OCLs). However, the molecular mechanisms underlying MVNP stimulation of OCL differentiation in the PDB are unclear. We therefore determined the MVNP regulated gene expression profiling during OCL differentiation. Agilent microarray analysis of gene expression identified high levels of SIRPβ1 (353-fold) expression in MVNP transduced human bone marrow mononuclear cells stimulated with RANKL...
December 2017: Bone Reports
https://www.readbyqxmd.com/read/28835499/nipah-and-hendra-virus-nucleoproteins-inhibit-nuclear-accumulation-of-stat1-and-stat2-by-interfering-with-their-complex-formation
#5
Akihiro Sugai, Hiroki Sato, Ikuyo Takayama, Misako Yoneda, Chieko Kai
Henipaviruses, such as Nipah (NiV) and Hendra (HeV) viruses, are highly pathogenic zoonotic agents within the Paramyxoviridae family. The phosphoprotein (P) gene products of the paramyxoviruses have been well characterized in their interferon (IFN) antagonist activity and their contribution to viral pathogenicity. In this study, we demonstrated that the nucleoprotein (N) of henipaviruses also prevents the host IFN signaling pathway. Reporter assays demonstrated that NiV and HeV N proteins (NiV-N and HeV-N, respectively) suppressed both type-I and type-II IFN responses dose-dependently, and the inhibitory effect was mediated by their core-domains...
August 23, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28818890/complete-genome-sequences-of-mumps-and-measles-virus-isolates-from-three-states-in-the-united-states
#6
Laura C Magaña, Alex Espinosa, Rachel L Marine, Terry Fei Fan Ng, Christina J Castro, Anna M Montmayeur, Jill K Hacker, Samantha Scott, Thomas Whyte, Bettina Bankamp, M Steven Oberste, Paul A Rota
We report here the full coding sequence of nine paramyxovirus genomes, including two full-length mumps virus genomes (genotypes G and H) and seven measles virus genomes (genotypes B3 and D4, D8, and D9), from respiratory samples of patients from California, Virginia, and Alabama obtained between 2010 and 2014.
August 17, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28809150/a-tupaia-paramyxovirus-vector-system-for-targeting-and-transgene-expression
#7
Christine E Engeland, Sascha Bossow, Andrew W Hudacek, Birgit Hoyler, Judith Förster, Rūta Veinalde, Dirk Jäger, Roberto Cattaneo, Guy Ungerechts, Christoph Springfeld
Viruses from the diverse family of Paramyxoviridae include important pathogens and are applied in gene therapy and for cancer treatment. The Tupaia paramyxovirus (TPMV), isolated from the kidney of a tree shrew, does not infect human cells and neutralizing antibodies against other Paramyxoviridae do not cross-react with TPMV. Here, we present a vector system for de novo generation of infectious TPMV that allows for insertion of additional genes as well as targeting using antibody single-chain variable fragments...
September 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28767708/physiological-stress-and-hendra-virus-in-flying-foxes-pteropus-spp-australia
#8
Lee McMichael, Daniel Edson, Craig Smith, David Mayer, Ina Smith, Steven Kopp, Joanne Meers, Hume Field
Pteropid bats (flying-foxes) are the natural reservoir of Hendra virus, an emergent paramyxovirus responsible for fatal infection in horses and humans in Australia. Pteropus alecto (the Black flying-fox) and the paraphyletic P. conspicillatus (the Spectacled flying-fox) appear to be the primary reservoir hosts. Previous studies have suggested that physiological and ecological factors may underpin infection dynamics in flying-foxes, and subsequent spillover to horses and in turn humans. We sought to examine temporal trends in urinary cortisol concentration in wild Australian flying-fox populations, to elucidate the putative relationship between Hendra virus infection and physiological stress...
2017: PloS One
https://www.readbyqxmd.com/read/28749283/seroprevalence-and-molecular-characterization-of-ferlavirus-in-captive-vipers-of-costa-rica
#9
Cristina Solis, Randall Arguedas, Mario Baldi, Martha Piche, Carlos Jimenez
Ferlaviruses (FV, previously referred to as ophidian paramyxoviruses, OPMV), are enveloped viruses with a negative-strand RNA genome, affecting snakes in captivity worldwide. Infection is characterized by respiratory and nervous clinical signs and carries high mortality rates, but no specific treatment or vaccine is currently available. Costa Rica has 16 species of vipers, found in captivity in collections essential for antivenom production, reintroduction, and public education. FV circulation in these populations was previously unknown, and the risk of introducing the viruses into naïve collections or free-ranging populations exists if the virus's presence is confirmed...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28714870/antiviral-lipopeptide-cell-membrane-interaction-is-influenced-by-peg-linker-length
#10
Marcelo T Augusto, Axel Hollmann, Matteo Porotto, Anne Moscona, Nuno C Santos
A set of lipopeptides was recently reported for their broad-spectrum antiviral activity against viruses belonging to the Paramyxoviridae family, including human parainfluenza virus type 3 and Nipah virus. Among them, the peptide with a 24-unit PEG linker connecting it to a cholesterol moiety (VG-PEG24-Chol) was found to be the best membrane fusion inhibitory peptide. Here, we evaluated the interaction of the same set of peptides with biomembrane model systems and isolated human peripheral blood mononuclear cells (PBMC)...
July 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28710271/novel-alphacoronaviruses-and-paramyxoviruses-cocirculate-with-type-1-and-severe-acute-respiratory-system-sars-related-betacoronaviruses-in-synanthropic-bats-of-luxembourg
#11
Maude Pauly, Jacques B Pir, Catherine Loesch, Aurélie Sausy, Chantal J Snoeck, Judith M Hübschen, Claude P Muller
Several infectious disease outbreaks with high mortality in humans have been attributed to viruses that are thought to have evolved from bat viruses. In this study from Luxembourg, the genetic diversity and epidemiology of paramyxoviruses and coronaviruses shed by the bat species Rhinolophus ferrumequinum and Myotis emarginatus were evaluated. Feces collection (n = 624) was performed longitudinally in a mixed-species colony in 2015 and 2016. In addition, feces (n = 254) were collected cross-sectionally from six Myotis emarginatus colonies in 2016...
September 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28686568/comparing-viral-metagenomic-extraction-methods
#12
Jeanette Klenner, Claudia Kohl, Piotr Wojtek Dabrowski, Andreas Nitsche
A crucial step in the molecular detection of viruses in clinical specimens is the efficient extraction of viral nucleic acids. The total yield of viral nucleic acid from a clinical specimen is dependent on the specimen's volume, the initial virus concentration and the effectiveness provided by the extraction method. Recent Next Generation Sequencing (NGS)-based diagnostic approaches (i.e. metagenomics) provide a molecular 'open view' into the sample, as they theoretically generate sequence reads of any nucleic acid present in a specimen in a statistically representative manner...
July 6, 2017: Current Issues in Molecular Biology
https://www.readbyqxmd.com/read/28685285/evaluation-of-the-replication-and-pathogenicity-of-a-variant-avian-paramyxovirus-serotype-6-in-mice
#13
Vuong Nghia Bui, Dai Quang Trinh, Lary N B Abao, Yuki Ozeki, Jonathan Runstadler, Kikuyasu Nakamura, Haruko Ogawa, Kunitoshi Imai
Avian paramyxoviruses (APMVs) have been evaluated for their potential use as vaccine vectors, sparking research efforts leading to a better understanding of APMVs' replication and pathogenicity. However, within APMV serotypes, significant genetic diversity exists, and the infectivity of variant strains in mammals has not been studied. We utilized a mouse model to evaluate the pathogenicity of a variant strain of APMV-6 (APMV-6/red-necked stint/Japan/8KS0813/2008) in comparison with the prototype APMV-6 strain (APMV-6/duck/Hong Kong/18/199/1977)...
July 6, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28665727/characterization-and-epidemiology-of-pigeon-paramyxovirus-type-1-viruses-ppmv-1-isolated-in-macedonia
#14
A Dodovski, I Cvetkovikj, K Krstevski, I Naletoski, Vladimir Savić
We have characterized in this study 10 PPMV-1 isolated from domestic pigeons and one PPMV-1 isolated from a feral pigeon in the period 2007-2012, using both classical methods (HI test and ICPI test) and molecular methods (RT-qPCR, RT-PCR, and nucleotide sequencing). Using phylogenetic analysis of partial fusion gene sequences, these viruses clustered with recent European PPMV-1 isolates (EU/re) within the genotype VIb/1. All isolates possessed virulent cleavage site motifs with variable morbidity and mortality in pigeons...
June 2017: Avian Diseases
https://www.readbyqxmd.com/read/28651549/6-methylmercaptopurine-riboside-a-thiopurine-nucleoside-with-antiviral-activity-against-canine-distemper-virus-in-vitro
#15
Otávio Valério de Carvalho, Daniele Mendes Félix, Claudia de Camargo Tozato, Juliana Lopes Rangel Fietto, Márcia Rogéria de Almeida, Gustavo Costa Bressan, Lindomar José Pena, Abelardo Silva-Júnior
BACKGROUND: Canine distemper (CD) is a widespread infectious disease that can severely impact a variety of species in the order Carnivora, as well as non-carnivore species such as non-human primates. Despite large-scale vaccination campaigns, several fatal outbreaks have been reported in wild and domestic carnivore populations. This, in association with expansion of the disease host range and the development of vaccine-escape strains, has contributed to an increased demand for therapeutic strategies synergizing with vaccine programs for effectively controlling canine distemper...
June 26, 2017: Virology Journal
https://www.readbyqxmd.com/read/28636633/playing-with-fire-what-is-influencing-horse-owners-decisions-to-not-vaccinate-their-horses-against-deadly-hendra-virus-infection
#16
Kailiea Arianna Goyen, John David Wright, Alexandra Cunneen, Joerg Henning
Hendra virus is a zoonotic paramyxovirus, which causes severe respiratory and neurological disease in horses and humans. Since 2012, the Hendra virus sub-unit G vaccine has been available for horse vaccination in Australia. Uptake of the vaccine has been limited and spill-over events of Hendra virus infection in horses continue to occur. We conducted an online, questionnaire-based cross-sectional study of 376 horse owners belonging to a variety of different equestrian clubs in Queensland, Australia, to identify risk factors for non-vaccination against Hendra virus...
2017: PloS One
https://www.readbyqxmd.com/read/28629988/4-azidocytidine-r1479-inhibits-henipaviruses-and-other-paramyxoviruses-with-high-potency
#17
Anne L Hotard, Biao He, Stuart T Nichol, Christina F Spiropoulou, Michael K Lo
The henipaviruses Nipah virus and Hendra virus are highly pathogenic zoonotic paramyxoviruses which have caused fatal outbreaks of encephalitis and respiratory disease in humans. Despite the availability of a licensed equine Hendra virus vaccine and a neutralizing monoclonal antibody shown to be efficacious against henipavirus infections in non-human primates, there remains no approved therapeutics or vaccines for human use. To explore the possibility of developing small-molecule nucleoside inhibitors against henipaviruses, we evaluated the antiviral activity of 4'-azidocytidine (R1479), a drug previously identified to inhibit flaviviruses, against henipaviruses along with other representative members of the family Paramyxoviridae...
June 17, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28616484/climatic-suitability-influences-species-specific-abundance-patterns-of-australian-flying-foxes-and-risk-of-hendra-virus-spillover
#18
Gerardo A Martin, Carlos Yanez-Arenas, Billie J Roberts, Carla Chen, Raina K Plowright, Rebecca J Webb, Lee F Skerratt
Hendra virus is a paramyxovirus of Australian flying fox bats. It was first detected in August 1994, after the death of 20 horses and one human. Since then it has occurred regularly within a portion of the geographical distribution of all Australian flying fox (fruit bat) species. There is, however, little understanding about which species are most likely responsible for spillover, or why spillover does not occur in other areas occupied by reservoir and spillover hosts. Using ecological niche models of the four flying fox species we were able to identify which species are most likely linked to spillover events using the concept of distance to the niche centroid of each species...
December 2016: One Health
https://www.readbyqxmd.com/read/28603697/dispersal-and-transmission-of-avian-paramyxovirus-serotype-4-among-wild-birds-and-domestic-poultry
#19
Renfu Yin, Pingze Zhang, Xinxin Liu, Yanyu Chen, Zhi Tao, Lili Ai, Junjiao Li, Yingying Yang, Mingxin Li, Cong Xue, Jing Qian, Xueli Wang, Jing Chen, Yong Li, Yanping Xiong, Jun Zhang, Tobias Stoeger, Yuhai Bi, Jianjun Chen, Zhuang Ding
Avian paramyxovirus serotype 4 (APMV-4) is found sporadically in wild birds worldwide, and it is an economically important poultry pathogen. Despite the existence of several published strains, very little is known about the distribution, host species, and transmission of APMV-4 strains. To better understand the relationships among these factors, we conducted an APMV-4 surveillance of wild birds and domestic poultry in six provinces of China suspected of being intercontinental flyways and sites of interspecies transmission...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28601688/structure-and-organization-of-paramyxovirus-particles
#20
REVIEW
Robert M Cox, Richard K Plemper
The paramyxovirus family comprises major human and animal pathogens such as measles virus (MeV), mumps virus (MuV), the parainfluenzaviruses, Newcastle disease virus (NDV), and the highly pathogenic zoonotic hendra (HeV) and nipah (NiV) viruses. Paramyxovirus particles are pleomorphic, with a lipid envelope, nonsegmented RNA genomes of negative polarity, and densely packed glycoproteins on the virion surface. A number of crystal structures of different paramyxovirus proteins and protein fragments were solved, but the available information concerning overall virion organization remains limited...
June 2017: Current Opinion in Virology
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