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https://www.readbyqxmd.com/read/28201953/acute-hiv-1-infection-presenting-with-fulminant-encephalopathy
#1
Eun J Lee, Young H Kim, Jeong Y Lee, Jun-Sang Sunwoo, Se Y Park, Tae H Kim
Human immunodeficiency virus (HIV)-1 directly affects the nervous system, causes distinct neurological symptoms, and indirectly results in opportunistic infections, which include herpes virus simplex (HSV)-1, HSV-2, varicella zoster virus, and cytomegalovirus encephalitis caused by immunodeficiency. Early HIV-1 invasion of the central nervous system is also possible, and acute encephalopathy is a potentially lethal complication. We encountered a case of fulminant encephalopathy as a primary presentation of acute HIV-1 infection, in which highly active antiretroviral treatment resulted in a full clinical recovery...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28198435/cultured-corneas-show-dendritic-spread-and-restrict-herpes-simplex-virus-infection-that-is-not-observed-with-cultured-corneal-cells
#2
Neel Thakkar, Dinesh Jaishankar, Alex Agelidis, Tejabhiram Yadavalli, Kyle Mangano, Shrey Patel, Sati Zeynep Tekin, Deepak Shukla
Herpes simplex virus-1 (HSV-1) causes life-long morbidities in humans. While fever blisters are more common, occasionally the cornea is infected resulting in vision loss. A very intriguing aspect of HSV-1 corneal infection is that the virus spread is normally restricted to only a small fraction of cells on the corneal surface that connect with each other in a dendritic fashion. Here, to develop a comprehensive understanding of the susceptibility of human corneal epithelial (HCE) cells to HSV-1 infection, we infected HCE cells at three different dosages of HSV-1 and measured the outcomes in terms of viral entry, gene and protein expression, viral replication and cytokine induction...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194842/infectivity-inhibition-by-overlapping-synthetic-peptides-derived-from-the-gh-gl-heterodimer-of-herpes-simplex-virus-type-1
#3
Gianluigi Franci, Annarita Falanga, Carla Zannella, Veronica Folliero, Francesca Martora, Marilena Galdiero, Stefania Galdiero, Giancarlo Morelli, Massimiliano Galdiero
Herpes simplex virus (HSV) is a human pathogen that infects epithelial cells. The cutaneous lesions, caused by the virus, spread to the nervous system creating several complications. Fusion of host membranes with the viral envelope is mandatory and mediated by a group of glycoproteins conserved in all Herpesviridae subfamilies, such as the glycoproteins B (gB), H (gH), L (gL) and D (gD). We investigated the inhibitory activity mediated by synthetic overlapping peptides spanning the entire ectodomains of gH and gL glycoproteins...
February 14, 2017: Journal of Peptide Science: An Official Publication of the European Peptide Society
https://www.readbyqxmd.com/read/28193504/strong-anti-epstein-barr-virus-ebv-or-cytomegalovirus-cmv-cellular-immune-responses-predict-survival-and-a-favourable-response-to-anti-tuberculosis-therapy
#4
REVIEW
Tumaini Nagu, Said Aboud, Martin Rao, Mecky Matee, Rebecca Axelsson, Davide Valentini, Ferdinand Mugusi, Alimuddin Zumla, Markus Maeurer
BACKGROUND: Intact immune responses to cytomegalovirus (CMV) and Epstein-Barr virus (EBV) represent a biologically and clinically relevant correlate of 'immunological fitness' in humans. However, there is a lack of knowledge concerning anti-EBV or anti-CMV responses in patients with pulmonary tuberculosis (TB), in whom aberrant immune responses may promote progression of clinical disease. METHODS: Venous blood samples were obtained from at the time of (sputum smear positive) pulmonary TB diagnosis...
February 10, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28181784/recurrent-herpes-labialis-and-hsv-1-herpes-genitalis-which-is-the-link
#5
Sergio Delmonte, Francesca Sidoti, Simone Ribero, Ivano Dal Conte, Antonio Curtoni, Giulia Ciccarese, Elena Stroppiana, Maria L Stella, Cristina Costa, Rossana Cavallo, Alfredo Rebora, Francesco Drago
BACKGROUND: Recently, Herpes simplex virus (HSV)-1 seroprevalence declined among adolescents, rendering young people lacking HSV-1 antibodies more susceptible to genital HSV-1 acquisition, if sexually exposed. The aim of the present study was to identify the possible risk factors for the development of HSV-1 related herpes genitalis (HG). METHODS: From January 2012 to December 2015, patients with HG attending three Sexually Transmitted Infections Units in Northern Italy were recruited...
February 8, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28180012/seroprevalence-and-co-infection-of-human-immunodeficiency-virus-hiv-and-herpes-simplex-virus-hsv-among-pregnant-women-in-lokoja-north-central-nigeria
#6
Olatunji Matthew Kolawole, Oluwatomi Olufunke Amuda, Charles Nzurumike, Muhammed Mustapha Suleiman, Jeremiah Ikhevha Ogah
BACKGROUND: Herpes simplex virus 1 (HSV-1) is normally associated with orofacial (orolabial) infections and encephalitis, whereas HSV-2 usually causes genital infections and can be transmitted from infected mothers to neonates. The evidence suggesting that HSV is facilitating the spread of the global human immunodeficiency virus (HIV) epidemic and the risk posed by these synergies to neonates in developing countries informed this study. OBJECTIVES: To determine the seroprevalence and co-infection of HIV and HSV, as well as their associated risk factors, in Lokoja, Nigeria...
October 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28179534/impaired-sting-pathway-in-the-human-osteosarcoma-u2os-cells-contributes-to-the-growth-of-icp0-null-mutant-herpes-simplex-virus
#7
Thibaut Deschamps, Maria Kalamvoki
Human herpes simplex virus-1 (HSV-1) is a wide spread pathogen with 80% of the population being latently infected. To successfully evade the host the virus has evolved strategies to counteract antiviral responses, including the gene silencing and innate immunity machineries. The immediately early protein of the virus, Infected Cell Protein 0 (ICP0) plays central role in these processes. ICP0 blocks innate immunity and one mechanism is by degrading hostile factors with its intrinsic E3 ligase activity. ICP0 functions also as a promiscuous transactivator and it blocks repressor complexes to enable viral gene transcription...
February 8, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28179408/time-resolved-global-and-chromatin-proteomics-during-herpes-simplex-virus-hsv-1-infection
#8
Katarzyna Kulej, Daphne C Avgousti, Simone Sidoli, Christin Herrmann, Ashley N Della Fera, Eui Tae Kim, Benjamin A Garcia, Matthew D Weitzman
Herpes simplex virus (HSV-1) lytic infection results in global changes to the host cell proteome and the proteins associated with host chromatin. We present a system level characterization of proteome dynamics during infection by performing a multi-dimensional analysis during HSV-1 lytic infection of human foreskin fibroblast (HFF) cells. Our study includes identification and quantification of the host and viral proteomes, phosphoproteomes, chromatin bound proteomes and post-translational modifications (PTMs) on cellular histones during infection...
February 8, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28177606/graphene-based-hotplate-for-the-capturing-and-destruction-of-the-herpes-simplex-virus-type-1
#9
Aharon Gedanken, Archana Deokar, Anjani P Nagvenkar, Inna Kalt, Lior Shani, Yosef Yeshurun, Ronit Sarid
The study of graphene-based antivirals is still at a nascent stage and the photothermal antiviral properties of graphene have yet to be studied. Here, we design and synthesize sulfonated magnetic nanoparticles functionalized with reduced graphene oxide (SMRGO) to capture and photothermally destroy herpes simplex virus type 1 (HSV-1). Graphene sheets were uniformly anchored with spherical magnetic nanoparticles (MNPs) of varying size between ~5-25 nm. Fourier-transform infrared spectroscopy (FT-IR) confirmed the sulfonation and anchoring of MNPs on the graphene sheets...
February 8, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28174681/participation-of-3-o-sulfated-heparan-sulfates-in-the-protection-of-macrophages-by-herpes-simplex-virus-1-glycoprotein-d-and-cyclophilin-b-against-apoptosis
#10
Maxime Delos, Charles Hellec, François Foulquier, Mathieu Carpentier, Fabrice Allain, Agnès Denys
Heparan sulfates (HS) are involved in numerous biological processes, which rely on their ability to interact with a large panel of proteins. Although the reaction of 3-O-sulfation can be catalysed by the largest family of HS sulfotransferases, very few mechanisms have been associated with this modification and to date, only glycoprotein D (gD) of herpes simplex virus-1 (HSV-1 gD) and cyclophilin B (CyPB) have been well-described as ligands for 3-O-sulfated HS. Here, we hypothesized that both ligands could induce the same responses via a mechanism dependent on 3-O-sulfated HS...
February 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28153849/corticosteroid-responsive-focal-granulomatous-herpes-simplex-type-1-encephalitis-in-adults
#11
Aravinthan Varatharaj, James Ar Nicoll, Emanuela Pelosi, Ashwin A Pinto
We describe corticosteroid-responsive focal granulomatous encephalitis as a manifestation of herpes simplex virus (HSV) type 1 disease in the brain: something easily missed and easily treated. Two adult cases presented with cognitive symptoms progressing over weeks, despite aciclovir treatment. Brain imaging showed temporal lobe abnormalities, with gadolinium enhancement but no abnormal diffusion restriction. HSV-1 PCR analysis was negative in cerebrospinal fluid (CSF) but positive in brain biopsies, which showed vasocentric granulomatous inflammation...
February 2, 2017: Practical Neurology
https://www.readbyqxmd.com/read/28153513/first-estimates-of-the-global-and-regional-incidence-of-neonatal-herpes-infection
#12
Katharine J Looker, Amalia S Magaret, Margaret T May, Katherine M E Turner, Peter Vickerman, Lori M Newman, Sami L Gottlieb
BACKGROUND: Neonatal herpes is a rare but potentially devastating condition with an estimated 60% fatality rate without treatment. Transmission usually occurs during delivery from mothers with herpes simplex virus type 1 (HSV-1) or type 2 (HSV-2) genital infection. However, the global burden has never been quantified to our knowledge. We developed a novel methodology for burden estimation and present first WHO global and regional estimates of the annual number of neonatal herpes cases during 2010-15...
January 30, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28150813/an-engineered-herpesvirus-activates-dendritic-cells-and-induces-protective-immunity
#13
Yijie Ma, Min Chen, Huali Jin, Bellur S Prabhakar, Tibor Valyi-Nagy, Bin He
Herpes simplex viruses (HSV) are human pathogens that switch between lytic and latent infection. While attenuated HSV is explored for vaccine, the underlying event remains poorly defined. Here we report that recombinant HSV-1 with a mutation in the γ134.5 protein, a virulence factor, stimulates dendritic cell (DC) maturation which is dependent on TANK-binding kinase 1 (TBK1). When exposed to CD11(+) DCs, the mutant virus that lacks the amino terminus of γ134.5 undergoes temporal replication without production of infectious virus...
February 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28150409/bizarre-cell-dysplasia-of-the-cervix
#14
Ondrej Ondič, Radoslav Ferko, Jana Kašpírková, Marián Švajdler, Boris Rýchly, Peter Talarčík, Jiří Bouda, Michal Michal
AIM: The aim of this study was the characterization of a new subtype of high-grade cervical squamous intraepithelial lesion (HSIL) with enlarged cells containing bizarre nuclei: so-called bizarre cell dysplasia (BCD). METHODS: A total of 29 cervical cone biopsy samples of this type of dysplasia were studied. Multi-target polymerase chain reaction and in situ hybridization human papillomavirus (HPV) detection was performed in all cases. BCD was defined as a subtype of HSIL characterized by the presence of large dysplastic cells with abnormal, large pleomorphic nuclei or multinucleation causing nucleomegaly...
February 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28148788/the-atp-dependent-rna-helicase-ddx3x-modulates-herpes-simplex-virus-type-1-gene-expression
#15
Bita Khadivjam, Camille Stegen, Marc-Aurèle Hogue-Racine, Nabil El Bilali, Katinka Döhner, Beate Sodeik, Roger Lippé
: The human protein DDX3X is a DEAD-box ATP-dependent RNA helicase that regulates transcription, mRNA maturation, mRNA export and translation. DDX3X concomitantly modulates the replication of several RNA viruses and promotes innate immunity. We previously showed that herpes simplex virus type 1 (HSV-1), a human DNA virus, incorporates DDX3X into its mature particles and that DDX3X is required for optimal HSV-1 infectivity. Here, we show that viral gene expression, replication and propagation depend on optimal DDX3X protein levels...
February 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28147331/aurora-a-kinase-inhibition-enhances-oncolytic-herpes-virotherapy-through-cytotoxic-synergy-and-innate-cellular-immune-modulation
#16
Mark A Currier, Les Sprague, Tilat A Rizvi, Brooke Nartker, Chun-Yu Chen, Pin-Yi Wang, Brian J Hutzen, Meghan R Franczek, Ami V Patel, Katherine E Chaney, Keri A Streby, Jeffrey A Ecsedy, Joe Conner, Nancy Ratner, Timothy P Cripe
Malignant peripheral nerve sheath tumor (MPNST) and neuroblastoma models respond to the investigational small molecule Aurora A kinase inhibitor, alisertib. We previously reported that MPNST and neuroblastomas are also susceptible to oncolytic herpes virus (oHSV) therapy. Herein, we show that combination of alisertib and HSV1716(HSV1716), a virus derived from HSV-1 and attenuated by deletion of RL1, exhibits significantly increased antitumor efficacy compared to either monotherapy. Alisertib and HSV1716 reduced tumor growth and increased survival in two xenograft models of MPNST and neuroblastoma...
January 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28129981/anti-hsv-1-antioxidant-and-antifouling-phenolic-compounds-from-the-deep-sea-derived-fungus-aspergillus-versicolor-scsio-41502
#17
Zhonghui Huang, Xuhua Nong, Zhe Ren, Jie Wang, Xiaoyong Zhang, Shuhua Qi
Chemical investigation of the deep-sea-derived fungus Aspergillus versicolor SCSIO 41502 resulted in the isolation of three new anthraquinones, aspergilols G-I (1-3), one new diphenyl ether, 4-carbglyceryl-3,3'-dihydroxy-5,5'-dimethyldiphenyl ether (4), and one new benzaldehyde derivative, 2,4-dihydroxy-6-(4-methoxy-2-oxopentyl)-3-methylbenzaldehyde (5), along with 23 known phenolic compounds (6-28). The structures of new compounds were elucidated by extensive spectroscopic analysis. The absolute configuration of 3 was established by CD spectrum and the modified Mosher method...
January 16, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28126930/genome-sequence-of-herpes-simplex-virus-1-strain-sc16
#18
Alberto Rastrojo, Alberto Domingo López-Muñoz, Antonio Alcamí
Herpes simplex virus 1 (HSV-1), also known as Human herpesvirus 1, is a highly prevalent human neurotropic pathogen that causes a variety of diseases, including lethal encephalitis. Here, we report the genome sequence of the HSV-1 strain SC16.
January 26, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28125695/novel-mutant-aav2-rep-proteins-support-aav2-replication-without-blocking-hsv-1-helpervirus-replication
#19
Michael Seyffert, Daniel L Glauser, Elisabeth M Schraner, Anna-Paula de Oliveira, Jorge Mansilla-Soto, Bernd Vogt, Hildegard Büning, R Michael Linden, Mathias Ackermann, Cornel Fraefel
As their names imply, parvoviruses of the genus Dependovirus rely for their efficient replication on the concurrent presence of a helpervirus, such as herpesvirus, adenovirus, or papilloma virus. Adeno-associated virus 2 (AAV2) is such an example, which in turn can efficiently inhibit the replication of each helpervirus by distinct mechanisms. In a previous study we have shown that expression of the AAV2 rep gene is not compatible with efficient replication of herpes simplex virus 1 (HSV-1). In particular, the combined DNA-binding and ATPase/helicase activities of the Rep68/78 proteins have been shown to exert opposite effects on the replication of AAV2 and HSV-1...
2017: PloS One
https://www.readbyqxmd.com/read/28122977/impact-of-type-1-interferon-on-the-safety-and-immunogenicity-of-an-experimental-live-attenuated-herpes-simplex-virus-type-1-vaccine-in-mice
#20
Derek J Royer, Meghan M Carr, Ana J Chucair-Elliott, William P Halford, Daniel J J Carr
: Viral fitness dictates virulence and capacity to evade host immune defenses. Understanding the biological underpinnings of such features is essential for rational vaccine development. We have previously shown that the live-attenuated herpes simplex virus type 1 (HSV-1) 0ΔNLS mutant is sensitive to inhibition by interferon β in vitro and functions as a highly efficacious experimental vaccine. Here, we characterize the host immune response and in vivo pathogenesis of HSV-1 0ΔNLS relative to its fully virulent parental strain in C57BL/6 mice...
January 25, 2017: Journal of Virology
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