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Andreas Max Ernst et al.
FEBS letters, 587(9), 1411-1417 (2013-03-26)
Influenza A Neuraminidase is essential for virus release from the cell surface of host cells. Given differential structures of the N-terminal sequences including the transmembrane domains of neuraminidase subtypes, we investigated their contribution to transport and localization of subtypes N1...
Katsumi Mizuta et al.
Journal of medical microbiology, 63(Pt 4), 570-577 (2014-01-28)
We conducted detailed genetic analyses of the haemagglutinin-neuraminidase (HN) gene in 272 human parainfluenza virus type 3 (HPIV3) isolates from children with acute respiratory illness during the period 2002-2009 in Yamagata prefecture, Japan. A phylogenetic tree reconstructed by the Bayesian...
Lu Lu et al.
BMC evolutionary biology, 14, 16-16 (2014-01-25)
The segmented RNA genome of avian Influenza viruses (AIV) allows genetic reassortment between co-infecting viruses, providing an evolutionary pathway to generate genetic innovation. The genetic diversity (16 haemagglutinin and 9 neuraminidase subtypes) of AIV indicates an extensive reservoir of influenza...
Dennis Schade et al.
Journal of medicinal chemistry, 57(3), 759-769 (2014-01-16)
With the emergence of oseltamivir-resistant influenza viruses and in view of a highly pathogenic flu pandemic, it is important to develop new anti-influenza agents. Here, the development of neuraminidase (NA) inhibitors that were designed to overcome resistance mechanisms along with...
IL-17-producing B cells combat parasites.
Beatriz León et al.
Nature immunology, 14(5), 419-421 (2013-04-20)
Patricia J Campbell et al.
Journal of virology, 88(7), 3802-3814 (2014-01-17)
The 2009 H1N1 lineage represented the first detection of a novel, highly transmissible influenza A virus genotype: six gene segments originated from the North American triple-reassortant swine lineage, and two segments, NA and M, derived from the Eurasian avian-like swine...
Some questions and suggestions on the type references of the official nomenclature (IUB) for sialidase(s) and endosialidase.
J A Cabezas
The Biochemical journal, 278 ( Pt 1), 311-312 (1991-08-15)
Richard Jennemann et al.
Glycobiology, 30(9), 722-734 (2020-03-10)
In pancreatic beta cells, the entry of glucose and downstream signaling for insulin release is regulated by the glucose transporter 2 (Glut2) in rodents. Dysfunction of the insulin-signaling cascade may lead to diabetes mellitus. Gangliosides, sialic acid-containing glycosphingolipids (GSLs), have...
I V Kiseleva et al.
Voprosy virusologii, 58(5), 26-31 (2014-03-20)
The live attenuated influenza vaccine (LAIV) currently licensed in Russia consists of the reassortant viruses with hemagglutinin (HA) and neuraminidase (NA) gene segments from the circulating wild-type viruses and the six internal protein-encoding gene segments from cold-adapted master donor viruses...
Rodolfo Ocadiz-Delgado et al.
BMC infectious diseases, 13, 20-20 (2013-01-19)
In April 2009, public health surveillance detected an increased number of influenza-like illnesses in Mexico City's hospitals. The etiological agent was subsequently determined to be a spread of a worldwide novel influenza A (H1N1) triple reassortant. The purpose of the...
Victor H Leyva-Grado et al.
Journal of molecular biology, 426(6), 1308-1321 (2014-01-02)
We previously demonstrated that ectodomain residue Asp286 in N2 neuraminidase (NA; Asp268 in N1 NA) present in budding-capable NA proteins contributes to productive NA plasma membrane transport partly by mediating escape from tetherin restriction [Yondola MA, Fernandes F, Belicha-Villanueva A...
Charles R Beck et al.
Influenza and other respiratory viruses, 7 Suppl 1, 14-24 (2013-02-12)
The objectives of this study were to: (1) reflect on key stages in the discovery, development and pre-pandemic use of neuraminidase inhibitors (NAIs), (2) summarise the evidence of NAI effectiveness for treatment and prophylaxis of seasonal influenza prior to the...
Longping V Tse et al.
Journal of virology, 87(9), 5161-5169 (2013-03-02)
Influenza virus is well recognized to modulate host tropism and pathogenesis based on mutations in the proteolytic cleavage site of the viral hemagglutinin (HA), which activates HA and exposes the fusion peptide for membrane fusion. Instead of the conventional trypsin-mediated...
Alana L Woodward et al.
Veterinary microbiology, 169(3-4), 113-127 (2014-02-01)
Equine influenza viruses are a major cause of respiratory disease in horses worldwide and undergo antigenic drift. Several outbreaks of equine influenza occurred worldwide during 2010-2012, including in vaccinated animals, highlighting the importance of surveillance and virus characterisation. Virus isolates...
N V Breslav et al.
Voprosy virusologii, 58(1), 28-32 (2013-06-22)
The emergent 2009 A(H1N1) pandemic brought into acute focus the problem of choosing the most effective anti-influenza drugs for successive influenza infection spreading control. Oseltamivir and zanamivir, influenza virus neuraminidase inhibitors (NAIs), were recommended by the WHO experts for the...
Weijia Wang et al.
Journal of virology, 87(8), 4642-4649 (2013-02-15)
In 2009, we successfully produced a high-yield live attenuated H1N1pdm A/California/7/2009 vaccine (CA/09 LAIV) by substitution of three residues (K119E, A186D, and D222G) in the hemagglutinin (HA) protein. Since then, we have generated and evaluated additional H1N1pdm vaccine candidates from...
Yi Zhang et al.
Journal of medicinal chemistry, 56(7), 2948-2958 (2013-03-28)
In the past two decades, human neuraminidases (human sialidases, hNEUs) have been found to be involved in numerous pathways in biology. The development of selective and potent inhibitors of these enzymes will provide critical tools for glycobiology, help to avoid...
Daniela A Bermejo et al.
Nature immunology, 14(5), 514-522 (2013-04-09)
Here we identified B cells as a major source of rapid, innate-like production of interleukin 17 (IL-17) in vivo in response to infection with Trypanosoma cruzi. IL-17(+) B cells had a plasmablast phenotype, outnumbered cells of the TH17 subset of...
Paola Rota et al.
Organic & biomolecular chemistry, 10(14), 2885-2894 (2012-03-08)
A simple protocol for the synthesis of N-perfluoroacylated and N-acylated glycals of neuraminic acid, with a secondary cyclic amine (morpholine or piperidine) at the 4α position, has been set-up, starting from peracetylated N-acetylneuraminic acid methyl ester that undergoes, sequentially to...
M V Sergeeva et al.
Voprosy virusologii, 58(6), 36-39 (2014-04-30)
Cold-adapted influenza virus A/HK/1/68/162/35(H3N2) was developed as unified donor of attenuation and high reproductive capacity forvaccine strains. The reassortant of this donor with surface antigens of highly pathogenic strain Alchicken/Astana/6/05 (H5N1) was tested in guinea pigs as a live or...
Tadatsugu Imamura et al.
Journal of virology, 88(5), 2374-2384 (2013-12-29)
Increased detection of enterovirus 68 (EV68) among patients with acute respiratory infections has been reported from different parts of the world in the late 2000s since its first detection in pediatric patients with lower-respiratory-tract infections in 1962. However, the underlying...
S Bhatt et al.
Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 368(1614), 20120382-20120382 (2013-02-06)
Few questions on infectious disease are more important than understanding how and why avian influenza A viruses successfully emerge in mammalian populations, yet little is known about the rate and nature of the virus' genetic adaptation in new hosts. Here...
Voprosy virusologii, 58(6), 27-31 (2014-04-30)
The results of the genetic studies of influenza viruses make it possible to understand their evolution and recommendations for vaccine strains content. In this work, the data of complete sequence of the HA, NA, and M2-protein for 34 strains of...
Chinh Tran-To Su et al.
BMC bioinformatics, 14 Suppl 16, S7-S7 (2014-02-26)
Since late March 2013, there has been another global health concern with a sudden wave of flu infections by a novel strain of avian influenza A (H7N9) virus in China. To-date, there have been more than 100 infections with 23...
Alexandre V Ivachtchenko et al.
Antiviral research, 100(3), 698-708 (2014-01-15)
A medium-sized focused library of novel Oseltamivir structural analogues with promising antiviral activity was successfully synthesized using a combinatorial approach. The synthesized compounds were then thoroughly evaluated in neuraminidase- and cell-based assays. As a result, (3R,4R,5S)-4-(2,2-difluoroacetylamino)-5-amino-3-(1-ethyl-propoxy)-cyclohex-1-enecarboxylic acid (AV5027) was identified...
Verena Wörter et al.
PloS one, 4(4), e5218-e5218 (2009-04-16)
Myelin-associated glycoprotein (MAG) is a sialic acid binding Ig-like lectin (Siglec) which has been characterized as potent myelin-derived inhibitor of neurite outgrowth. Two members of the Nogo-receptor (NgR) family, NgR1 and NgR2, have been identified as neuronal binding proteins of...
Christopher J Vavricka et al.
Nature communications, 4, 1491-1491 (2013-02-21)
Development of novel influenza neuraminidase inhibitors is critical for preparedness against influenza outbreaks. Knowledge of the neuraminidase enzymatic mechanism and transition-state analogue, 2-deoxy-2,3-didehydro-N-acetylneuraminic acid, contributed to the development of the first generation anti-neuraminidase drugs, zanamivir and oseltamivir. However, lack of...
William C Hines et al.
Nature communications, 6, 6927-6927 (2015-04-22)
Clinically relevant human culture models are essential for developing effective therapies and exploring the biology and etiology of human cancers. Current breast tumour models, such as those from oncogenically transformed primary breast cells, produce predominantly basal-like properties, whereas the more...
Chemistry, metabolism, and biological functions of sialic acids.
R Schauer
Advances in carbohydrate chemistry and biochemistry, 40, 131-234 (1982-01-01)
Peng Wang et al.
Biology of reproduction, 78(2), 290-298 (2007-11-09)
MUC1, a type I transmembrane glycoprotein expressed on most epithelia and many cancer cells, is involved in embryo implantation and tumor progression. A series of antibodies directed against the MUC1 ectodomain have been used to study MUC1 expression in the...
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