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https://www.readbyqxmd.com/read/27926942/actin-related-protein-2-arp2-and-virus-induced-filopodia-facilitate-human-respiratory-syncytial-virus-spread
#1
Masfique Mehedi, Thomas McCarty, Scott E Martin, Cyril Le Nouën, Eugen Buehler, Yu-Chi Chen, Margery Smelkinson, Sundar Ganesan, Elizabeth R Fischer, Linda G Brock, Bo Liang, Shirin Munir, Peter L Collins, Ursula J Buchholz
Human respiratory syncytial virus (RSV) is an enveloped RNA virus that is the most important viral cause of acute pediatric lower respiratory tract illness worldwide, and lacks a vaccine or effective antiviral drug. The involvement of host factors in the RSV replicative cycle remains poorly characterized. A genome-wide siRNA screen in human lung epithelial A549 cells identified actin-related protein 2 (ARP2) as a host factor involved in RSV infection. ARP2 knockdown did not reduce RSV entry, and did not markedly reduce gene expression during the first 24 hr of infection, but decreased viral gene expression thereafter, an effect that appeared to be due to inhibition of viral spread to neighboring cells...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27926940/inflammasome-independent-nlrp3-restriction-of-a-protective-early-neutrophil-response-to-pulmonary-tularemia
#2
Sivakumar Periasamy, Hongnga T Le, Ellen B Duffy, Heather Chin, Jonathan A Harton
Francisella tularensis (Ft) causes a frequently fatal, acute necrotic pneumonia in humans and animals. Following lethal Ft infection in mice, infiltration of the lungs by predominantly immature myeloid cells and subsequent myeloid cell death drive pathogenesis and host mortality. However, following sub-lethal Ft challenge, more mature myeloid cells are elicited and are protective. In addition, inflammasome-dependent IL-1β and IL-18 are important for protection. As Nlrp3 appears dispensable for resistance to infection with Francisella novicida, we considered its role during infection with the virulent Type A strain SchuS4 and the attenuated Type B live vaccine strain LVS...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27926937/intensive-circulation-of-japanese-encephalitis-virus-in-peri-urban-sentinel-pigs-near-phnom-penh-cambodia
#3
Julien Cappelle, Veasna Duong, Long Pring, Lida Kong, Maud Yakovleff, Didot Budi Prasetyo, Borin Peng, Rithy Choeung, Raphaël Duboz, Sivuth Ong, San Sorn, Philippe Dussart, Arnaud Tarantola, Philippe Buchy, Véronique Chevalier
Despite the increased use of vaccination in several Asian countries, Japanese Encephalitis (JE) remains the most important cause of viral encephalitis in Asia in humans with an estimated 68,000 cases annually. Considered a rural disease occurring mainly in paddy-field dominated landscapes where pigs are amplifying hosts, JE may nevertheless circulate in a wider range of environment given the diversity of its potential hosts and vectors. The main objective of this study was to assess the intensity of JE transmission to pigs in a peri-urban environment in the outskirt of Phnom Penh, Cambodia...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27926921/schistosoma-mansoni-infection-can-jeopardize-the-duration-of-protective-levels-of-antibody-responses-to-immunizations-against-hepatitis-b-and-tetanus-toxoid
#4
Diana K Riner, Eric M Ndombi, Jennifer M Carter, Amos Omondi, Nupur Kittur, Emmy Kavere, Harrison K Korir, Briana Flaherty, Diana Karanja, Daniel G Colley
BACKGROUND: Schistosomiasis is a disease of major public health importance in sub-Saharan Africa. Immunoregulation begins early in schistosome infection and is characterized by hyporesponsiveness to parasite and bystander antigens, suggesting that a schistosome infection at the time of immunization could negatively impact the induction of protective vaccine responses. This study examined whether having a Schistosoma mansoni infection at the time of immunization with hepatitis B and tetanus toxoid (TT) vaccines impacts an individual's ability to achieve and maintain protective antibody levels against hepatitis B surface antigen or TT...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27926861/immunometabolic-pathways-in-bcg-induced-trained-immunity
#5
Rob J W Arts, Agostinho Carvalho, Claudia La Rocca, Carla Palma, Fernando Rodrigues, Ricardo Silvestre, Johanneke Kleinnijenhuis, Ekta Lachmandas, Luís G Gonçalves, Ana Belinha, Cristina Cunha, Marije Oosting, Leo A B Joosten, Giuseppe Matarese, Reinout van Crevel, Mihai G Netea
The protective effects of the tuberculosis vaccine Bacillus Calmette-Guerin (BCG) on unrelated infections are thought to be mediated by long-term metabolic changes and chromatin remodeling through histone modifications in innate immune cells such as monocytes, a process termed trained immunity. Here, we show that BCG induction of trained immunity in monocytes is accompanied by a strong increase in glycolysis and, to a lesser extent, glutamine metabolism, both in an in-vitro model and after vaccination of mice and humans...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27926826/potential-of-a-bpv1-l1-vlp-vaccine-to-prevent-bpv1-or-bpv2-induced-pseudo-sarcoid-formation-and-safety-and-immunogenicity-of-ecpv2-l1-vlps-in-the-horse
#6
Edmund K Hainisch, Hans Abel-Reichwald, Saeed Shafti-Keramat, Barbara Pratscher, Annunziata Corteggio, Giuseppe Borzacchiello, Maria Wetzig, Christoph Jindra, Alexander Tichy, Reinhard Kirnbauer, Sabine Brandt
We have previously shown that immunization of horses with BPV1 L1 virus-like particles (VLP) is safe and highly immunogenic, and that bovine papillomavirus types 1 and 2 (BPV1, BPV2) are closely related serotypes. Here we evaluated the protective potential of a BPV1 L1 VLP vaccine against experimental BPV1 and BPV2 challenge, and studied the safety and immunogenicity of a bivalent EcPV2/BPV1 L1 VLP vaccine. Fourteen healthy horses were immunized with BPV1 L1 VLPs (100 µg/injection) plus adjuvant on days 0 and 28, whilst seven remained unvaccinated...
December 7, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27926825/mycobacterium-malmesburyense-sp-nov-a-novel-non-tuberculous-mycobacterium-species-revealed-by-multiple-gene-sequence-characterization
#7
Nomakorinte Gcebe, Victor Rutten, Nicolaas Gey van Pittius, Brendon Naicker, Anita Michel
Non-tuberculous mycobacteria (NTM) are ubiquitous in the environment and an increasing number of NTM species have been isolated and characterized from both humans and animals, highlighting the zoonotic potential of these bacteria. Host exposure to NTM may impact on cross-reactive immune responsiveness which may affect diagnosis of bovine tuberculosis and may also play a role in the variability of the efficacy of Mycobacterium bovis BCG vaccination against tuberculosis. In this study we characterized 10 NTM isolates originating from water, soil, nasal swabs of cattle and African buffalo as well as bovine tissue samples...
December 5, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27926726/erratum-rekindling-cancer-vaccines
#8
Malorye Allison Branca
No abstract text is available yet for this article.
December 7, 2016: Nature Biotechnology
https://www.readbyqxmd.com/read/27926522/il-10-expression-defines-an-immunosuppressive-dendritic-cell-population-induced-by-antitumor-therapeutic-vaccination
#9
Diana Llopiz, Marta Ruiz, Stefany Infante, Lorea Villanueva, Leyre Silva, Sandra Hervas-Stubbs, Diego Alignani, Elizabeth Guruceaga, Juan J Lasarte, Pablo Sarobe
Vaccination induces immunostimulatory signals that are often accompanied by regulatory mechanisms such as IL-10, which control T-cell activation and inhibit vaccine-dependent antitumor therapeutic effect. Here we characterized IL-10-producing cells in different tumor models treated with therapeutic vaccines. Although several cell subsets produced IL-10 irrespective of treatment, an early vaccine-dependent induction of IL-10 was detected in dendritic cells (DC). IL-10 production defined a DC population characterized by a poorly mature phenotype, lower expression of T-cell stimulating molecules and upregulation of PD-L1...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27926486/novel-epstein-barr-virus-like-particles-incorporating-gh-gl-ebna1-or-gb-lmp2-induce-high-neutralizing-antibody-titers-and-ebv-specific-t-cell-responses-in-immunized-mice
#10
Elizabeth M Perez, Joslyn Foley, Timelia Tison, Rute Silva, Javier Gordon Ogembo
Previous Epstein-Barr virus (EBV) prophylactic vaccines based on the major surface glycoprotein gp350/220 as an immunogen have failed to block viral infection in humans, suggesting a need to target other viral envelope glycoproteins. In this study, we reasoned that incorporating gH/gL or gB, critical glycoproteins for viral fusion and entry, on the surface of a virus-like particle (VLP) would be more immunogenic than gp350/220 for generating effective neutralizing antibodies to prevent viral infection of both epithelial and B cell lines...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27925894/prevention-of-herpes-zoster-and-its-complications-from-clinical-evidence-to-real-life-experience
#11
Giovanni Gabutti, Paolo Bonanni, Michele Conversano, Guido Fanelli, Elisabetta Franco, Donato Greco, Giancarlo Icardi, Marzia Lazzari, Alessandro Rossi, Silvestro Scotti, Antonio Volpi
Herpes zoster (HZ) is an acute viral illness characterized by a vesicular rash with unilateral distribution, which can also result in severe complications such as post-herpetic neuralgia (PHN), ophthalmic zoster, stroke or other neurological complications. The estimate incidence in Europe ranges between 2.0 and 4.6 cases per 1,000 person-years, with a sharp increase in >50 year-old subjects. Currently, treatment options for HZ are only partially effective in limiting the acute phase, while the management of complications is complex and often unsatisfactory...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27925856/clinical-and-economic-impact-of-herpes-zoster-vaccination-in-elderly-in-italy
#12
Sara Boccalini, Cristiano Alicino, Domenico Martinelli, Angela Bechini, Emilia Tiscione, Barbara Pellizzari, Rosa Prato, Giancarlo Icardi, Stefania Iannazzo, Paolo Bonanni
Herpes zoster (HZ) is a very relevant pathology among elderly people (≥ 60 years of age), with a considerable disease burden and loss of quality of life. In the last years a new vaccine against HZ became available in Italy. Therefore, the Italian decision makers are now confronted with the decision whether that vaccination should be implemented. Pharmaco-economic analyses represent useful tools to value the feasibility of new immunization programs and their sustainability. To this aim, an ad hoc population model was developed in order to value the clinical and economic impact of HZ vaccination program for the elderly in Italy...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27925855/costs-associated-with-influenza-related-hospitalization-in-the-elderly
#13
Núria Torner, Encarna Navas, Núria Soldevila, Diana Toledo, Gemma Navarro, Aurea Morillo, Maria José Pérez, Angela Domínguez
Seasonal influenza epidemics remain a considerable burden in adults, especially in those at higher risk of complications. The aim of this study was to determine the costs associated with influenza-related hospitalization in patients aged ≥65 years admitted to 20 hospitals from seven Spanish regions during the 2013-14 and 2014-15 influenza seasons. Bivariate analysis was used to compare costs in vaccinated and unvaccinated cases. Costs were calculated according to the Spanish National Health System diagnosis-related group tables for influenza and other respiratory system conditions (GRD 89 and GRD 101)...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27925848/hospitalizations-for-pneumococcal-diseases-in-tuscany-from-2002-to-2014-impact-of-universal-pediatric-vaccination-on-the-population
#14
Sara Boccalini, Ornella Varone, Martina Chellini, Luca Pieri, Antonino Sala, Cesare Berardi, Paolo Bonanni, Angela Bechini
Streptococcus pneumoniae is the main causative organism of acute media otitis in children and meningitis and bacterial pneumonia in the community. Since 2008 in Tuscany, central Italy, the pneumococcal conjugate vaccine (7-valent vaccine, switched in 13-valent vaccine in 2010) was actively offered free of charge to all newborns. Aim of the study is to evaluate the impact of pneumococcal paediatric vaccination on the Tuscan population on hospitalizations potentially caused by S. pneumoniae, during pre-vaccination (PVP, 2002-2007) and vaccination period (VP, 2009-2014)...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27925847/effectiveness-of-hepatitis-a-vaccination-as-post-exposure-prophylaxis
#15
Ignasi Parrón, Caritat Planas, Pere Godoy, Sandra Manzanares-Laya, Ana Martínez, Maria Rosa Sala, Sofia Minguell, Nuria Torner, Mireia Jané, Angela Domínguez
Hepatitis A (HA) has been a vaccine-preventable disease since 1995. In Catalonia, a universal combined hepatitis A+B vaccination program of preadolescents was initiated at the end of 1998. However, outbreaks are reported each year and post-exposure prophylaxis (PEP) with hepatitis A virus (HAV) vaccine or immunoglobulin (IG) is recommended to avoid cases. The aim of this study was to assess the effectiveness of HAV vaccine and IG in preventing hepatitis A cases in susceptible exposed people. A retrospective cohort study of contacts of HA cases involved in outbreaks reported in Catalonia between January 2006 and December 2012 was made...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27925845/economic-studies-applied-to-vaccines-against-invasive-diseases-an-updated-budget-impact-analysis-of-age-based-pneumococcal-vaccination-strategies-in-the-elderly-in-italy
#16
Sara Boccalini, Angela Bechini, Roberto Gasparini, Donatella Panatto, Daniela Amicizia, Paolo Bonanni
Many evaluations have been carried out on the economic impact of pneumococcal vaccination in older adults (>64 years of age) in several countries, including Italy. However, these studies did not include the new data on the effectiveness of 13-valent conjugate pneumococcal vaccine (PCV13) in the elderly reported by the CAPiTA Study. The aim of the present study was to update our previous budget impact analysis of multi-cohort PCV13 vaccination in adults in Italy by including new scientific evidence. We also compared single-cohort vaccination strategies per year, in order to identify the cohort with the most favourable economic profile, in the event of the multi-cohort approach not being economically sustainable for the National Health System (NHS)...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27925844/a-two-dose-heterologous-prime-boost-vaccine-regimen-eliciting-sustained-immune-responses-to-ebola-zaire-could-support-a-preventive-strategy-for-future-outbreaks
#17
Georgi Shukarev, Benoit Callendret, Kerstin Luhn, Macaya Douoguih, The Ebovac Consortium
The consequences of the 2013-16 Ebola Zaire virus disease epidemic in West Africa were grave. The economies, healthcare systems and communities of Guinea, Sierra Leone and Liberia were devastated by over 18 months of active Ebola virus transmission, followed by sporadic resurgences potentially related to sexual transmission by survivors with viral persistence in body fluids following recovery. The need to develop and implement strategies to prevent and mitigate future outbreaks is now beyond dispute. The potential for unpredictable outbreaks of indeterminate duration, and control challenges posed by the possibility of sporadic re-emergence, mean that implementation of an effective vaccination programme for outbreak containment necessitates a vaccine providing durable immunity...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27925817/the-dangerous-curve-and-the-guardrail-disease-and-vaccination
#18
Robert James Kim-Farley
No abstract text is available yet for this article.
January 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/27925509/tenth-world-congress-on-vaccines-immunisation-and-immunotherapy
#19
Edouard Kurstak
No abstract text is available yet for this article.
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27925503/persistence-of-protective-anti-hbs-antibody-levels-and-anamnestic-response-to-hbv-booster-vaccination-a-cross-sectional-study-among-healthcare-students-20%C3%A2-years-following-the-universal-immunization-campaign-in-italy
#20
Guglielmo Dini, Alessandra Toletone, Ilaria Barberis, Nicoletta Debarbieri, Emanuela Massa, Chiara Paganino, Francesca Bersi, Alfredo Montecucco, Cristiano Alicino, Paolo Durando
Vaccination against Hepatitis B Virus (HBV) became mandatory in Italy for all newborns and twelve years-old individuals in the 1991. The immunogenicity of HBV vaccine and the effectiveness of the universal immunization strategy have been widely demonstrated. However the need to assess the antibody concentrations above the well known serological correlate of protection for HBV infection (≥ 10 mIU/mL), established in individuals immunized with a three doses vaccination course, is still recommended in subjects exposed to occupational risks in different settings, particularly the healthcare services...
December 7, 2016: Human Vaccines & Immunotherapeutics
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