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https://www.readbyqxmd.com/read/27876202/an-interferon-inducing-porcine-reproductive-and-respiratory-syndrome-virus-vaccine-candidate-elicits-protection-against-challenge-with-the-heterologous-virulent-type-2-strain-vr-2385-in-pigs
#1
Eve Fontanella, Zexu Ma, Yanjin Zhang, Alessandra M M G de Castro, Huigang Shen, Patrick G Halbur, Tanja Opriessnig
Achieving consistent protection by vaccinating pigs against porcine reproductive and respiratory syndrome virus (PRRSV) remains difficult. Recently, an interferon-inducing PRRSV vaccine candidate strain A2MC2 was demonstrated to be attenuated and induced neutralizing antibodies. The objective of this study was to determine the efficacy of passage 90 of A2MC2 (A2P90) to protect pigs against challenge with moderately virulent PRRSV strain VR-2385 (92.3% nucleic acid identity with A2MC2) and highly virulent atypical PRRSV MN184 (84...
November 18, 2016: Vaccine
https://www.readbyqxmd.com/read/27843537/retrospective-study-of-the-associations-between-hepatitis-c-virus-infection-and-metabolic-factors
#2
Shira Yair-Sabag, Elchanan Nussinson, Ofir Ben-Assuli, Fahmi Shibli, Azmi Shahbari, Shira Zelber-Sagi
AIM: To evaluate the bidirectional association between metabolic syndrome (MS) components and antiviral treatment response for chronic hepatitis C virus (HCV) infection. METHODS: This retrospective cohort study included 119 HCV + patients treated with pegylated-interferon-α and ribavirin. Metabolic characteristics and laboratory data were collected from medical records. Differences in baseline clinical and demographic risk factors between responders and non-responders were assessed using independent samples t-tests or χ(2) tests...
October 28, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27765052/distinct-functional-enrichment-of-transcriptional-signatures-in-pigs-with-high-and-low-ifn-gamma-responses-after-vaccination-with-a-porcine-reproductive-and-respiratory-syndrome-virus-prrsv
#3
Tahar Ait-Ali, Ivan Díaz, Ferran Soldevila, Esmeralda Cano, Yanli Li, Alison D Wilson, Bruno Giotti, Alan L Archibald, Enric Mateu, Laila Darwich
Little is known about the host factor in the response to PRRSV vaccination. For this purpose, piglets were immunized with a commercial PRRSV-live vaccine and classified as high responders (HR) or low responders (LR) as regards to the frequencies of virus-specific IFN-γ-secreting cells. Six weeks post vaccination, PBMCs isolated from three individuals with the most extreme responses in each HR and LR groups and 3 unvaccinated controls, were either stimulated with phytohaemagglutinin, challenged with the vaccine or mock treated for 24 h, prior conducting transcriptional studies, gene ontology and pathway analyses...
October 20, 2016: Veterinary Research
https://www.readbyqxmd.com/read/27640439/recombinant-beta-interferon-could-clear-the-low-dose-infected-porcine-reproductive-and-respiratory-syndrome-virus-prrsv-in-marc-145-cells
#4
X Shi, X Zhang, L Wang, W Li, B Jiang, R Deng, A Wang, G Zhang
Porcine reproductive and respiratory syndrome virus (PRRSV) causes one of the most economically devastating and pandemic porcine diseases. Previous study has shown that MARC-145 cells pretreated with recombinant IFN-β (rIFN-β) couldn't develop cytopathic effect (CPE) of PRRSV. However, up to date, it is not clear whether MARC-145 cells post-treated with rIFN-β could develop CPE of PRRSV. The present work showed that the MARC-145 cells didn't develop the CPE at 120 hr post-infection (p.i.) with low-dose of PRRSV when the cells were pre-treated with rIFN-β (Group 1), post-treated with rIFN-β at 4 hr p...
2016: Acta Virologica
https://www.readbyqxmd.com/read/27556483/evaluation-of-the-cross-protective-efficacy-of-a-chimeric-porcine-reproductive-and-respiratory-syndrome-virus-constructed-based-on-two-field-strains
#5
Nadeem Shabir, Amina Khatun, Salik Nazki, Bumseok Kim, Eun-Jin Choi, Dong Sun, Kyoung-Jin Yoon, Won-Il Kim
One of the major hurdles to porcine reproductive and respiratory syndrome (PRRS) vaccinology is the limited or no cross-protection conferred by current vaccines. To overcome this challenge, a PRRS chimeric virus (CV) was constructed using an FL12-based cDNA infectious clone in which open reading frames (ORFs) 3-4 and ORFs 5-6 were replaced with the two Korean field isolates K08-1054 and K07-2273,respectively. This virus was evaluated as a vaccine candidate to provide simultaneous protection against two genetically distinct PRRS virus (PRRSV) strains...
2016: Viruses
https://www.readbyqxmd.com/read/27528396/deciphering-transcriptome-profiles-of-peripheral-blood-mononuclear-cells-in-response-to-prrsv-vaccination-in-pigs
#6
Md Aminul Islam, Christine Große-Brinkhaus, Maren Julia Pröll, Muhammad Jasim Uddin, Sharmin Aqter Rony, Dawit Tesfaye, Ernst Tholen, Michael Hölker, Karl Schellander, Christiane Neuhoff
BACKGROUND: Porcine reproductive and respiratory syndrome (PRRS) is one of the most economically important viral diseases affecting swine industry worldwide. Despite routine farm vaccination, effective control strategies for PRRS remained elusive which underscores the need for in-depth studies to gain insight into the host immune response to vaccines. The current study aimed to investigate transcriptional responses to PRRS Virus (PRRSV) vaccine in the peripheral blood mononuclear cells (PBMCs) within 3 days following vaccination in German Landrace pigs...
2016: BMC Genomics
https://www.readbyqxmd.com/read/27439510/distinct-immune-responses-of-juvenile-and-adult-oysters-crassostrea-gigas-to-viral-and-bacterial-infections
#7
Timothy J Green, Agnes Vergnes, Caroline Montagnani, Julien de Lorgeril
Since 2008, massive mortality events of Pacific oysters (Crassostrea gigas) have been reported worldwide and these disease events are often associated with Ostreid herpesvirus type 1 (OsHV-1). Epidemiological field studies have also reported oyster age and other pathogens of the Vibrio genus are contributing factors to this syndrome. We undertook a controlled laboratory experiment to simultaneously investigate survival and immunological response of juvenile and adult C. gigas at different time-points post-infection with OsHV-1, Vibrio tasmaniensis LGP32 and V...
2016: Veterinary Research
https://www.readbyqxmd.com/read/27395032/2-5-oligoadenylate-synthetase-1-oas1-inhibits-prrsv-replication-in-marc-145%C3%A2-cells
#8
Jinhua Zhao, Na Feng, Zhenhong Li, Peng Wang, Ziyu Qi, Wan Liang, Xiang Zhou, Xuewen Xu, Bang Liu
Porcine reproductive and respiratory syndrome virus (PRRSV) is an economically destructive disease for global pig industry. Although its invasion mechanism is clear, the knowledge of pathogen and host interaction is less known. Here, we found that PPRSV infection led to induction of 2', 5'-oligoadenylate synthetase gene 1(OAS1), an important interferon-stimulated gene. More importantly, ectopic overexpression of OAS1 significantly restricted the replication of PRRSV in 24 and 36 h post-infection in Marc-145 cells, and indirect immunofluorescence assay with antibody against PRRSV N protein displayed significantly lower frequency of fluorescence stained cells and reduced cytopathogenic effects of PRRSV on OAS1-transfected Marc-145 cells...
August 2016: Antiviral Research
https://www.readbyqxmd.com/read/27310036/gene-expression-profile-in-tnf-receptor-associated-periodic-syndrome-reveals-constitutively-enhanced-pathways-and-new-players-in-the-underlying-inflammation
#9
Silvia Borghini, Denise Ferrera, Ignazia Prigione, Michele Fiore, Chiara Ferraris, Valentina Mirisola, Adriana Agnese Amaro, Ilaria Gueli, Luca Zammataro, Marco Gattorno, Ulrich Pfeffer, Isabella Ceccherini
OBJECTIVES: Tumour necrosis factor (TNF) receptor-associated periodic syndrome (TRAPS) is a multisystemic autoinflammatory condition associated with heterozygous TNFRSF1A mutations, presenting with a variety of clinical symptoms, many of which yet unexplained. In this work, we aimed at deepening into TRAPS pathogenic mechanisms sustained by monocytes. METHODS: Microarray experiments were conducted to identify genes whose expression results altered in patients compared to healthy individuals, both under basal condition and following LPS stimulation...
September 2016: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/27279606/complex-interplay-between-hiv-1-capsid-and-mx2-independent-alpha-interferon-induced-antiviral-factors
#10
Lorenzo Bulli, Luis Apolonia, Juliane Kutzner, Darja Pollpeter, Caroline Goujon, Nikolas Herold, Sarah-Marie Schwarz, Yannick Giernat, Oliver T Keppler, Michael H Malim, Torsten Schaller
UNLABELLED: Type I interferons (IFNs), including IFN-α, upregulate an array of IFN-stimulated genes (ISGs) and potently suppress Human immunodeficiency virus type 1 (HIV-1) infectivity in CD4(+) T cells, monocyte-derived macrophages, and dendritic cells. Recently, we and others identified ISG myxovirus resistance 2 (MX2) as an inhibitor of HIV-1 nuclear entry. However, additional antiviral blocks exist upstream of nuclear import, but the ISGs that suppress infection, e.g., prior to (or during) reverse transcription, remain to be defined...
August 15, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27272011/global-cytokine-profiles-and-association-with-clinical-characteristics-in-patients-with-irritable-bowel-syndrome
#11
Sean M P Bennet, Annikka Polster, Hans Törnblom, Stefan Isaksson, Sandrine Capronnier, Aurore Tessier, Boris Le Nevé, Magnus Simrén, Lena Öhman
OBJECTIVES: Evidence suggests that patients with irritable bowel syndrome (IBS) have an altered cytokine profile, although it is unclear whether cytokines are linked with symptom severity. We aimed to determine whether global serum and mucosal cytokine profiles differ between IBS patients and healthy subjects and whether cytokines are associated with IBS symptoms. METHODS: Serum from 144 IBS patients and 42 healthy subjects was analyzed for cytokine levels of interleukin (IL)-5, IL-6, IL-8, IL-10, IL-12p70, IL-13, IL-17A, interferon (IFN)-γ, and tumor necrosis factor (TNF) by MSD MULTI-ARRAY...
August 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27207143/genome-wide-analysis-of-the-transcriptional-response-to-porcine-reproductive-and-respiratory-syndrome-virus-infection-at-the-maternal-fetal-interface-and-in-the-fetus
#12
Jamie M Wilkinson, Hua Bao, Andrea Ladinig, Linjun Hong, Paul Stothard, Joan K Lunney, Graham S Plastow, John C S Harding
BACKGROUND: Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) infection of pregnant pigs can result in congenital infection and ultimately fetal death. Little is known about immune responses to infection at the maternal-fetal interface and in the fetus itself, or the molecular events behind virus transmission and disease progression in the fetus. To investigate these processes, RNA-sequencing of two sites, uterine endothelium with adherent placental tissue and fetal thymus, was performed 21 days post-challenge on four groups of fetuses selected from a large PRRSV challenge experiment of pregnant gilts: control (CON), uninfected (UNINF), infected (INF), and meconium-stained (MEC) (n = 12/group)...
2016: BMC Genomics
https://www.readbyqxmd.com/read/27093427/differences-in-whole-blood-gene-expression-associated-with-infection-time-course-and-extent-of-fetal-mortality-in-a-reproductive-model-of-type-2-porcine-reproductive-and-respiratory-syndrome-virus-prrsv-infection
#13
Jamie M Wilkinson, Andrea Ladinig, Hua Bao, Arun Kommadath, Paul Stothard, Joan K Lunney, John C S Harding, Graham S Plastow
Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) infection of pregnant females causes fetal death and increased piglet mortality, but there is substantial variation in the extent of reproductive pathology between individual dams. This study used RNA-sequencing to characterize the whole blood transcriptional response to type 2 PRRSV in pregnant gilts during the first week of infection (at 0, 2, and 6 days post-inoculation), and attempted to identify gene expression signatures associated with a low or high level of fetal mortality rates (LFM and HFM; n = 8/group) at necropsy, 21 days post-inoculation...
2016: PloS One
https://www.readbyqxmd.com/read/27066702/downregulation-of-protein-kinase-pkr-activation-by-porcine-reproductive-and-respiratory-syndrome-virus-at-its-early-stage-infection
#14
Yueqiang Xiao, Zexu Ma, Rong Wang, Liping Yang, Yuchen Nan, Yan-Jin Zhang
The interferon-induced double-strand RNA activated protein kinase (PKR) plays an important role in antiviral response. The objective of this study was to assess the effect of porcine reproductive and respiratory syndrome virus (PRRSV) on PKR activation. Here we report that PRRSV inhibited PKR activation during its early stage infection of primary pulmonary alveolar macrophages (PAMs). PRRSV infection led to lower level of phosphorylated PKR in comparison with mock-infected cells. The PKR inhibition was sustained until 10h post infection in the presence of polyI:C, a synthetic analog of double-stranded RNA activating PKR...
May 1, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/26953551/-neurological-disorders-and-pregnancy
#15
P Berlit
Neurological disorders caused by pregnancy and puerperium include the posterior reversible encephalopathy syndrome, the amniotic fluid embolism syndrome (AFES), the postpartum angiopathy due to reversible vasoconstriction syndrome, and the Sheehan syndrome. Hypertension and proteinuria are the hallmarks of preeclampsia, seizures define eclampsia. Hemolysis, elevated liver enzymes and low platelets constitute the HELLP syndrome. Vision disturbances including cortical blindness occur in the posterior reversible encephalopathy syndrome (PRES)...
February 2016: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/26701365/acute-management-and-long-term-survival-among-subjects-with-severe-middle-east-respiratory-syndrome-coronavirus-pneumonia-and-ards
#16
Imran Khalid, Basem M Alraddadi, Youssef Dairi, Tabindeh J Khalid, Mazen Kadri, Abeer N Alshukairi, Ismael A Qushmaq
BACKGROUND: Data on the management, clinical course, and outcome of critical patients with Middle East Respiratory Syndrome coronavirus are scarce. We report here our experience and long-term outcome of such patients. METHODS: Subjects intubated for management of ARDS from Middle East Respiratory Syndrome coronavirus pneumonia and ARDS during the April-May 2014 outbreak were included. Their characteristics, ICU course, management, and outcome were evaluated. RESULTS: Fourteen subjects, including 3 health-care workers, met study criteria...
March 2016: Respiratory Care
https://www.readbyqxmd.com/read/26342467/porcine-bocavirus-np1-negatively-regulates-interferon-signaling-pathway-by-targeting-the-dna-binding-domain-of-irf9
#17
Ruoxi Zhang, Liurong Fang, Dang Wang, Kaimei Cai, Huan Zhang, Lilan Xie, Yi Li, Huanchun Chen, Shaobo Xiao
To subvert host antiviral immune responses, many viruses have evolved countermeasures to inhibit IFN signaling pathway. Porcine bocavirus (PBoV), a newly identified porcine parvovirus, has received attention because it shows clinically high co-infection prevalence with other pathogens in post-weaning multisystemic wasting syndrome (PWMS) and diarrheic piglets. In this study, we screened the structural and non-structural proteins encoded by PBoV and found that the non-structural protein NP1 significantly suppressed IFN-stimulated response element (ISRE) activity and subsequent IFN-stimulated gene (ISG) expression...
November 2015: Virology
https://www.readbyqxmd.com/read/26260103/functional-and-homeostatic-defects-of-regulatory-t-cells-in-patients-with-coronary-artery-disease
#18
L Hasib, A K Lundberg, H Zachrisson, J Ernerudh, L Jonasson
OBJECTIVE: Regulatory T cells (Tregs) are considered atheroprotective, and low levels have been associated with the acute coronary syndrome (ACS), particularly non-ST elevation (NSTE)-ACS. However, the functional properties as well as homeostasis of Tregs are mainly unknown in coronary artery disease (CAD). Here, we investigated the composition and functional properties of naïve (n) and memory (m)Tregs in patients with NSTE-ACS and in patients 6-12 months post-ACS. METHODS: Based on the expression of CD25, FOXP3, CD127, CD45RA, CD39 and CTLA-4, Treg subsets were defined by flow cytometry in whole blood or isolated CD4(+) T cells...
January 2016: Journal of Internal Medicine
https://www.readbyqxmd.com/read/26244642/ifi6-inhibits-apoptosis-via-mitochondrial-dependent-pathway-in-dengue-virus-2-infected-vascular-endothelial-cells
#19
Yiming Qi, Ying Li, Yingke Zhang, Lin Zhang, Zilian Wang, Xuzhi Zhang, Lian Gui, Junqi Huang
Dengue hemorrhagic fever (DHF)/Dengue shock syndrome (DSS) is a fatal infectious disease that demands an effective treatment. Interferon (IFN)-stimulated genes (ISGs) induced by dengue virus (DENV) exert antiviral effects. Among ISGs, IFN-α inducible gene 6 (IFI6) was increased in DENV infected human umbilical vascular endothelial cells (HUVECs) by microarray analysis in our previous study. However, its function is incompletely understood. In this study, we confirmed that IFI6 was markedly induced in DENV infection of both primary HUVECs and EA...
2015: PloS One
https://www.readbyqxmd.com/read/26233537/postmarketing-safety-profile-of-subcutaneous-interferon-beta-1a-given-3-times-weekly-a-retrospective-administrative-claims-analysis
#20
Meredith Y Smith, Meritxell Sabidó-Espin, Anton Trochanov, Mark Samuelson, Sandra Guedes, Frank A Corvino, Florent F Richy
BACKGROUND: Health insurance administrative claims databases represent a valuable source of information regarding the safety profile of marketed products as used in actual clinical practice in a broader range of patients than that assessed in clinical trials. Interferon beta-1a administered subcutaneously 3 times weekly (IFN β-1a SC tiw), which was approved in 2002 by the FDA for the treatment of relapsing-remitting multiple sclerosis (MS), has over a decade of postmarketing experience...
August 2015: Journal of Managed Care & Specialty Pharmacy
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