Antibody evasion by a gammaherpesvirus O-glycan shield.

Abstract:

:All gammaherpesviruses encode a major glycoprotein homologous to the Epstein-Barr virus gp350. These glycoproteins are often involved in cell binding, and some provide neutralization targets. However, the capacity of gammaherpesviruses for long-term transmission from immune hosts implies that in vivo neutralization is incomplete. In this study, we used Bovine Herpesvirus 4 (BoHV-4) to determine how its gp350 homolog--gp180--contributes to virus replication and neutralization. A lack of gp180 had no impact on the establishment and maintenance of BoHV-4 latency, but markedly sensitized virions to neutralization by immune sera. Antibody had greater access to gB, gH and gL on gp180-deficient virions, including neutralization epitopes. Gp180 appears to be highly O-glycosylated, and removing O-linked glycans from virions also sensitized them to neutralization. It therefore appeared that gp180 provides part of a glycan shield for otherwise vulnerable viral epitopes. Interestingly, this O-glycan shield could be exploited for neutralization by lectins and carbohydrate-specific antibody. The conservation of O-glycosylation sites in all gp350 homologs suggests that this is a general evasion mechanism that may also provide a therapeutic target.

journal_name

PLoS Pathog

journal_title

PLoS pathogens

authors

Machiels B,Lété C,Guillaume A,Mast J,Stevenson PG,Vanderplasschen A,Gillet L

doi

10.1371/journal.ppat.1002387

subject

Has Abstract

pub_date

2011-11-01 00:00:00

pages

e1002387

issue

11

eissn

1553-7366

issn

1553-7374

pii

PPATHOGENS-D-11-00324

journal_volume

7

pub_type

杂志文章
  • Forward genetic screening identifies a small molecule that blocks Toxoplasma gondii growth by inhibiting both host- and parasite-encoded kinases.

    abstract::The simultaneous targeting of host and pathogen processes represents an untapped approach for the treatment of intracellular infections. Hypoxia-inducible factor-1 (HIF-1) is a host cell transcription factor that is activated by and required for the growth of the intracellular protozoan parasite Toxoplasma gondii at p...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1004180

    authors: Brown KM,Suvorova E,Farrell A,McLain A,Dittmar A,Wiley GB,Marth G,Gaffney PM,Gubbels MJ,White M,Blader IJ

    更新日期:2014-06-12 00:00:00

  • L-glutamine Induces Expression of Listeria monocytogenes Virulence Genes.

    abstract::The high environmental adaptability of bacteria is contingent upon their ability to sense changes in their surroundings. Bacterial pathogen entry into host poses an abrupt and dramatic environmental change, during which successful pathogens gauge multiple parameters that signal host localization. The facultative human...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1006161

    authors: Haber A,Friedman S,Lobel L,Burg-Golani T,Sigal N,Rose J,Livnat-Levanon N,Lewinson O,Herskovits AA

    更新日期:2017-01-23 00:00:00

  • Cross-serotype immunity induced by immunization with a conserved rhinovirus capsid protein.

    abstract::Human rhinovirus (RV) infections are the principle cause of common colds and precipitate asthma and COPD exacerbations. There is currently no RV vaccine, largely due to the existence of ∼150 strains. We aimed to define highly conserved areas of the RV proteome and test their usefulness as candidate antigens for a broa...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1003669

    authors: Glanville N,McLean GR,Guy B,Lecouturier V,Berry C,Girerd Y,Gregoire C,Walton RP,Pearson RM,Kebadze T,Burdin N,Bartlett NW,Almond JW,Johnston SL

    更新日期:2013-01-01 00:00:00

  • The EBNA3 family of Epstein-Barr virus nuclear proteins associates with the USP46/USP12 deubiquitination complexes to regulate lymphoblastoid cell line growth.

    abstract::The Epstein-Barr virus (EBV) nuclear proteins EBNA3A, EBNA3B, and EBNA3C interact with the cell DNA binding protein RBPJ and regulate cell and viral genes. Repression of the CDKN2A tumor suppressor gene products p16(INK4A) and p14(ARF) by EBNA3A and EBNA3C is critical for EBV mediated transformation of resting B lymph...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1004822

    authors: Ohashi M,Holthaus AM,Calderwood MA,Lai CY,Krastins B,Sarracino D,Johannsen E

    更新日期:2015-04-09 00:00:00

  • A gatekeeper chaperone complex directs translocator secretion during type three secretion.

    abstract::Many Gram-negative bacteria use Type Three Secretion Systems (T3SS) to deliver effector proteins into host cells. These protein delivery machines are composed of cytosolic components that recognize substrates and generate the force needed for translocation, the secretion conduit, formed by a needle complex and associa...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1004498

    authors: Archuleta TL,Spiller BW

    更新日期:2014-11-06 00:00:00

  • Proteome-wide analysis of CD8+ T cell responses to EBV reveals differences between primary and persistent infection.

    abstract::Human herpesviruses are antigenically rich agents that induce strong CD8+T cell responses in primary infection yet persist for life, continually challenging T cell memory through recurrent lytic replication and potentially influencing the spectrum of antigen-specific responses. Here we describe the first lytic proteom...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1007110

    authors: Forrest C,Hislop AD,Rickinson AB,Zuo J

    更新日期:2018-09-24 00:00:00

  • AID activity in B cells strongly correlates with polyclonal antibody affinity maturation in-vivo following pandemic 2009-H1N1 vaccination in humans.

    abstract::The role of Activation-Induced Cytidine Deaminase (AID) in somatic hypermutation and polyclonal antibody affinity maturation has not been shown for polyclonal responses in humans. We investigated whether AID induction in human B cells following H1N1pdm09 vaccination correlated with in-vivo antibody affinity maturation...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002920

    authors: Khurana S,Frasca D,Blomberg B,Golding H

    更新日期:2012-09-01 00:00:00

  • Hepatitis B virus core protein phosphorylation: Identification of the SRPK1 target sites and impact of their occupancy on RNA binding and capsid structure.

    abstract::Hepatitis B virus (HBV) replicates its 3 kb DNA genome through capsid-internal reverse transcription, initiated by assembly of 120 core protein (HBc) dimers around a complex of viral pregenomic (pg) RNA and polymerase. Following synthesis of relaxed circular (RC) DNA capsids can be enveloped and secreted as stable vir...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1007488

    authors: Heger-Stevic J,Zimmermann P,Lecoq L,Böttcher B,Nassal M

    更新日期:2018-12-19 00:00:00

  • Differential contribution of PB1-F2 to the virulence of highly pathogenic H5N1 influenza A virus in mammalian and avian species.

    abstract::Highly pathogenic avian influenza A viruses (HPAIV) of the H5N1 subtype occasionally transmit from birds to humans and can cause severe systemic infections in both hosts. PB1-F2 is an alternative translation product of the viral PB1 segment that was initially characterized as a pro-apoptotic mitochondrial viral pathog...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002186

    authors: Schmolke M,Manicassamy B,Pena L,Sutton T,Hai R,Varga ZT,Hale BG,Steel J,Pérez DR,García-Sastre A

    更新日期:2011-08-01 00:00:00

  • Autophagy protein Atg3 is essential for maintaining mitochondrial integrity and for normal intracellular development of Toxoplasma gondii tachyzoites.

    abstract::Autophagy is a cellular process that is highly conserved among eukaryotes and permits the degradation of cellular material. Autophagy is involved in multiple survival-promoting processes. It not only facilitates the maintenance of cell homeostasis by degrading long-lived proteins and damaged organelles, but it also pl...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002416

    authors: Besteiro S,Brooks CF,Striepen B,Dubremetz JF

    更新日期:2011-12-01 00:00:00

  • Phage resistance at the cost of virulence: Listeria monocytogenes serovar 4b requires galactosylated teichoic acids for InlB-mediated invasion.

    abstract::The intracellular pathogen Listeria monocytogenes is distinguished by its ability to invade and replicate within mammalian cells. Remarkably, of the 15 serovars within the genus, strains belonging to serovar 4b cause the majority of listeriosis clinical cases and outbreaks. The Listeria O-antigens are defined by subtl...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1008032

    authors: Sumrall ET,Shen Y,Keller AP,Rismondo J,Pavlou M,Eugster MR,Boulos S,Disson O,Thouvenot P,Kilcher S,Wollscheid B,Cabanes D,Lecuit M,Gründling A,Loessner MJ

    更新日期:2019-10-07 00:00:00

  • Sex and death: the effects of innate immune factors on the sexual reproduction of malaria parasites.

    abstract::Malaria parasites must undergo a round of sexual reproduction in the blood meal of a mosquito vector to be transmitted between hosts. Developing a transmission-blocking intervention to prevent parasites from mating is a major goal of biomedicine, but its effectiveness could be compromised if parasites can compensate b...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1001309

    authors: Ramiro RS,Alpedrinha J,Carter L,Gardner A,Reece SE

    更新日期:2011-03-01 00:00:00

  • Gene expression profiles of Chlamydophila pneumoniae during the developmental cycle and iron depletion-mediated persistence.

    abstract::The obligate intracellular, gram-negative bacterium Chlamydophila pneumoniae (Cpn) has impact as a human pathogen. Little is known about changes in the Cpn transcriptome during its biphasic developmental cycle (the acute infection) and persistence. The latter stage has been linked to chronic diseases. To analyze Cpn C...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.0030083

    authors: Mäurer AP,Mehlitz A,Mollenkopf HJ,Meyer TF

    更新日期:2007-06-01 00:00:00

  • Capacity of Broadly Neutralizing Antibodies to Inhibit HIV-1 Cell-Cell Transmission Is Strain- and Epitope-Dependent.

    abstract::An increasing number of broadly neutralizing antibodies (bnAbs) are considered leads for HIV-1 vaccine development and novel therapeutics. Here, we systematically explored the capacity of bnAbs to neutralize HIV-1 prior to and post-CD4 engagement and to block HIV-1 cell-cell transmission. Cell-cell spread is known to ...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1004966

    authors: Reh L,Magnus C,Schanz M,Weber J,Uhr T,Rusert P,Trkola A

    更新日期:2015-07-09 00:00:00

  • Long noncoding RNA MARL regulates antiviral responses through suppression miR-122-dependent MAVS downregulation in lower vertebrates.

    abstract::Increasing evidence suggests important roles for long noncoding RNAs (lncRNAs) as new gene modulators involved in various biological processes. However, the function roles of lncRNAs in lower vertebrates are still unknown. Here, we firstly identify a lncRNA, named MAVS antiviral-related lncRNA (MARL), as a key regulat...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1008670

    authors: Chu Q,Xu T,Zheng W,Chang R,Zhang L

    更新日期:2020-07-17 00:00:00

  • A Quantitative Analysis of Complexity of Human Pathogen-Specific CD4 T Cell Responses in Healthy M. tuberculosis Infected South Africans.

    abstract::We performed a quantitative analysis of the HLA restriction, antigen and epitope specificity of human pathogen specific responses in healthy individuals infected with M. tuberculosis (Mtb), in a South African cohort as a test case. The results estimate the breadth of T cell responses for the first time in the context ...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1005760

    authors: Lindestam Arlehamn CS,McKinney DM,Carpenter C,Paul S,Rozot V,Makgotlho E,Gregg Y,van Rooyen M,Ernst JD,Hatherill M,Hanekom WA,Peters B,Scriba TJ,Sette A

    更新日期:2016-07-13 00:00:00

  • Extracellular vesicles from Kaposi Sarcoma-associated herpesvirus lymphoma induce long-term endothelial cell reprogramming.

    abstract::Extracellular signaling is a mechanism that higher eukaryotes have evolved to facilitate organismal homeostasis. Recent years have seen an emerging interest in the role of secreted microvesicles, termed extracellular vesicles (EV) or exosomes in this signaling network. EV contents can be modified by the cell in respon...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1007536

    authors: McNamara RP,Chugh PE,Bailey A,Costantini LM,Ma Z,Bigi R,Cheves A,Eason AB,Landis JT,Host KM,Xiong J,Griffith JD,Damania B,Dittmer DP

    更新日期:2019-02-04 00:00:00

  • RNA interference analysis of Legionella in Drosophila cells: exploitation of early secretory apparatus dynamics.

    abstract::Legionella pneumophila translocates multiple bacterial effector proteins into host cells to direct formation of a replication vacuole for the bacterium. The emerging consensus is that formation of this compartment involves recruitment of membrane material that traffics between the endoplasmic reticulum (ER) and Golgi....

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.0020034

    authors: Dorer MS,Kirton D,Bader JS,Isberg RR

    更新日期:2006-04-01 00:00:00

  • The binding of triclosan to SmeT, the repressor of the multidrug efflux pump SmeDEF, induces antibiotic resistance in Stenotrophomonas maltophilia.

    abstract::The wide utilization of biocides poses a concern on the impact of these compounds on natural bacterial populations. Furthermore, it has been demonstrated that biocides can select, at least in laboratory experiments, antibiotic resistant bacteria. This situation has raised concerns, not just on scientists and clinician...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002103

    authors: Hernández A,Ruiz FM,Romero A,Martínez JL

    更新日期:2011-06-01 00:00:00

  • A Novel Zn2-Cys6 Transcription Factor AtrR Plays a Key Role in an Azole Resistance Mechanism of Aspergillus fumigatus by Co-regulating cyp51A and cdr1B Expressions.

    abstract::Successful treatment of aspergillosis caused by Aspergillus fumigatus is threatened by an increasing incidence of drug resistance. This situation is further complicated by the finding that strains resistant to azoles, the major antifungal drugs for aspergillosis, have been widely disseminated across the globe. To eluc...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1006096

    authors: Hagiwara D,Miura D,Shimizu K,Paul S,Ohba A,Gonoi T,Watanabe A,Kamei K,Shintani T,Moye-Rowley WS,Kawamoto S,Gomi K

    更新日期:2017-01-04 00:00:00

  • Trans-dominant inhibition of prion propagation in vitro is not mediated by an accessory cofactor.

    abstract::Previous studies identified prion protein (PrP) mutants which act as dominant negative inhibitors of prion formation through a mechanism hypothesized to require an unidentified species-specific cofactor termed protein X. To study the mechanism of dominant negative inhibition in vitro, we used recombinant PrP(C) molecu...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1000535

    authors: Geoghegan JC,Miller MB,Kwak AH,Harris BT,Supattapone S

    更新日期:2009-07-01 00:00:00

  • The nicotinic acetylcholine receptors of the parasitic nematode Ascaris suum: formation of two distinct drug targets by varying the relative expression levels of two subunits.

    abstract::Parasitic nematodes are of medical and veterinary importance, adversely affecting human health and animal welfare. Ascaris suum is a gastrointestinal parasite of pigs; in addition to its veterinary significance it is a good model of the human parasite Ascaris lumbricoides, estimated to infect approximately 1.4 billion...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1000517

    authors: Williamson SM,Robertson AP,Brown L,Williams T,Woods DJ,Martin RJ,Sattelle DB,Wolstenholme AJ

    更新日期:2009-07-01 00:00:00

  • Rhabdovirus matrix protein structures reveal a novel mode of self-association.

    abstract::The matrix (M) proteins of rhabdoviruses are multifunctional proteins essential for virus maturation and budding that also regulate the expression of viral and host proteins. We have solved the structures of M from the vesicular stomatitis virus serotype New Jersey (genus: Vesiculovirus) and from Lagos bat virus (genu...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1000251

    authors: Graham SC,Assenberg R,Delmas O,Verma A,Gholami A,Talbi C,Owens RJ,Stuart DI,Grimes JM,Bourhy H

    更新日期:2008-12-01 00:00:00

  • EBV epitranscriptome reprogramming by METTL14 is critical for viral-associated tumorigenesis.

    abstract::Epstein-Barr virus (EBV) is a ubiquitous oncogenic virus that induces many cancers. N6-Methyladenosine (m6A) modification regulates many cellular processes. We explored the role of m6A in EBV gene regulation and associated cancers. We have comprehensively defined m6A modification of EBV latent and lytic transcripts. F...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1007796

    authors: Lang F,Singh RK,Pei Y,Zhang S,Sun K,Robertson ES

    更新日期:2019-06-21 00:00:00

  • Dynamic, morphotype-specific Candida albicans beta-glucan exposure during infection and drug treatment.

    abstract::Candida albicans, a clinically important dimorphic fungal pathogen that can evade immune attack by masking its cell wall beta-glucan from immune recognition, mutes protective host responses mediated by the Dectin-1 beta-glucan receptor on innate immune cells. Although the ability of C. albicans to switch between a yea...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1000227

    authors: Wheeler RT,Kombe D,Agarwala SD,Fink GR

    更新日期:2008-12-01 00:00:00

  • Multiple translocation of the AVR-Pita effector gene among chromosomes of the rice blast fungus Magnaporthe oryzae and related species.

    abstract::Magnaporthe oryzae is the causal agent of rice blast disease, a devastating problem worldwide. This fungus has caused breakdown of resistance conferred by newly developed commercial cultivars. To address how the rice blast fungus adapts itself to new resistance genes so quickly, we examined chromosomal locations of AV...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002147

    authors: Chuma I,Isobe C,Hotta Y,Ibaragi K,Futamata N,Kusaba M,Yoshida K,Terauchi R,Fujita Y,Nakayashiki H,Valent B,Tosa Y

    更新日期:2011-07-01 00:00:00

  • Dynamics of the multiplicity of cellular infection in a plant virus.

    abstract::Recombination, complementation and competition profoundly influence virus evolution and epidemiology. Since viruses are intracellular parasites, the basic parameter determining the potential for such interactions is the multiplicity of cellular infection (cellular MOI), i.e. the number of viral genome units that effec...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1001113

    authors: Gutiérrez S,Yvon M,Thébaud G,Monsion B,Michalakis Y,Blanc S

    更新日期:2010-09-16 00:00:00

  • Membrane alterations induced by nonstructural proteins of human norovirus.

    abstract::Human noroviruses (huNoV) are the most frequent cause of non-bacterial acute gastroenteritis worldwide, particularly genogroup II genotype 4 (GII.4) variants. The viral nonstructural (NS) proteins encoded by the ORF1 polyprotein induce vesical clusters harboring the viral replication sites. Little is known so far abou...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1006705

    authors: Doerflinger SY,Cortese M,Romero-Brey I,Menne Z,Tubiana T,Schenk C,White PA,Bartenschlager R,Bressanelli S,Hansman GS,Lohmann V

    更新日期:2017-10-27 00:00:00

  • Association of host protein VARICOSE with HCPro within a multiprotein complex is crucial for RNA silencing suppression, translation, encapsidation and systemic spread of potato virus A infection.

    abstract::In this study, we investigated the significance of a conserved five-amino acid motif 'AELPR' in the C-terminal region of helper component-proteinase (HCPro) for potato virus A (PVA; genus Potyvirus) infection. This motif is a putative interaction site for WD40 domain-containing proteins, including VARICOSE (VCS). We a...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1008956

    authors: De S,Pollari M,Varjosalo M,Mäkinen K

    更新日期:2020-10-12 00:00:00

  • In vitro and in vivo isolation and characterization of Duvenhage virus.

    abstract::A fatal human case of Duvenhage virus (DUVV) infection in a Dutch traveller who had returned from Kenya was reported in 2007. She exhibited classical symptoms of rabies encephalitis with distinct pathological findings. In the present study we describe the isolation and characterization of DUVV in vitro and its passage...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002682

    authors: Koraka P,Martina BE,Roose JM,van Thiel PP,van Amerongen G,Kuiken T,Osterhaus AD

    更新日期:2012-01-01 00:00:00