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https://www.readbyqxmd.com/read/28089546/expression-of-interleukin-6-by-a-recombinant-rabies-virus-enhances-its-immunogenicity-as-a-potential-vaccine
#1
Jun Luo, Boyue Zhang, Yuting Wu, Qin Tian, Jing Zhao, Ziyu Lyu, Qiong Zhang, Mingzhu Mei, Yongwen Luo, Xiaofeng Guo
Several studies have confirmed that interleukin-6 (IL6) mediates multiple biological effects that enhance immune responses when used as an adjuvant. In the present study, recombinant rabies virus (RABV) expressing canine IL6 (rHEP-CaIL6) was rescued and its pathogenicity and immunogenicity were investigated in mice. We demonstrated that mice received a single intramuscular immunization with rHEP-CaIL6 showed an earlier increase and higher maximum titres of virus-neutralizing antibody (VNA) as well as anti-RABV antibodies compared with mice immunized with the parent strain...
January 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28077630/mavs-is-essential-for-primary-cd4-t-cell-immunity-but-not-for-recall-t-cell-responses-following-an-attenuated-west-nile-virus-infection
#2
Huanle Luo, Evandro Winkelmann, Guorui Xie, Rong Fang, Bi-Hung Peng, Li Li, Helen M Lazear, Slobodan Paessler, Michael S Diamond, Michael Gale, Alan D Barrett, Tian Wang
: The use of pathogen recognition receptor (PRR) agonists and the molecular mechanisms involved have been the major focus of research in individual vaccine development. West Nile virus (WNV) nonstructural (NS) 4B-P38G mutant has several features for an ideal vaccine candidate, including significantly reduced neuroinvasiveness, induction of strong adaptive immunity, and protection of mice from wild-type (WT) WNV infection. Here, we determined the role of mitochondrial antiviral-signaling (MAVS), the adaptor protein for RIG-I like receptor in regulating host immunity against the NS4B-P38G vaccine...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28075558/immunological-principles-guiding-the-rational-design-of-particles-for-vaccine-delivery
#3
Katelyn T Gause, Adam K Wheatley, Jiwei Cui, Yan Yan, Stephen J Kent, Frank Caruso
Despite the immense public health successes of immunization over the past century, effective vaccines are still lacking for globally important pathogens such as human immunodeficiency virus, malaria, and tuberculosis. Exciting recent advances in immunology and biotechnology over the past few decades have facilitated a shift from empirical to rational vaccine design, opening possibilities for improved vaccines. Some of the most important advancements include (i) the purification of subunit antigens with high safety profiles, (ii) the identification of innate pattern recognition receptors (PRRs) and cognate agonists responsible for inducing immune responses, and (iii) developments in nano- and microparticle fabrication and characterization techniques...
January 11, 2017: ACS Nano
https://www.readbyqxmd.com/read/28075551/cucurbit-n-uril-based-microcapsules-self-assembled-within-microfluidic-droplets-a-versatile-approach-for-supramolecular-architectures-and-materials
#4
Ji Liu, Yang Lan, Ziyi Yu, Cindy S Y Tan, Richard M Parker, Chris Abell, Oren A Scherman
Microencapsulation is a fundamental concept behind a wide range of daily applications ranging from paints, adhesives, and pesticides to targeted drug delivery, transport of vaccines, and self-healing concretes. The beauty of microfluidics to generate microcapsules arises from the capability of fabricating monodisperse and micrometer-scale droplets, which can lead to microcapsules/particles with fine-tuned control over size, shape, and hierarchical structure, as well as high reproducibility, efficient material usage, and high-throughput manipulation...
January 11, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28063995/activation-of-tnf-%C3%AE-aid-axis-and-co-inhibitory-signals-in-coordination-with-th1-type-immunity-in-a-mouse-model-recapitulating-hepatitis-b
#5
Tomonori Matsumoto, Ken Takahashi, Tadashi Inuzuka, Soo Ki Kim, Tomoaki Kurosaki, Shigeru Kawakami, Tsutomu Chiba, Hiroshi Seno, Hiroyuki Marusawa
Hepatitis B virus (HBV) infection evokes host immune responses that primarily determine the outcome of HBV infection and the clinical features of HBV-associated liver disease. The precise mechanisms by which host factors restrict HBV replication, however, are poorly understood due to the lack of useful animal models that recapitulate immune responses to HBV. Here, we performed comprehensive immunologic gene expression profiling of the liver of a mouse model recapitulating anti-HBV immune response using a high sensitivity direct digital counting system...
January 5, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28060314/analysis-of-simian-immunodeficiency-virus-specific-cd8-t-cells-in-rhesus-macaques-by-peptide-mhc-i-tetramer-staining
#6
Lucas Gonzalez-Nieto, Aline Domingues, Michael Ricciardi, Martin J Gutman, Helen S Maxwell, Nuria Pedreño-Lopez, Varian Bailey, Diogo M Magnani, Mauricio A Martins
Peptide-major histocompatibility complex class I (pMHC-I) tetramers have been an invaluable tool to study CD8(+) T-cell responses. Because these reagents directly bind to T-cell receptors on the surface of CD8(+) T-lymphocytes, fluorochrome-labeled pMHC-I tetramers enable the accurate detection of antigen (Ag)-specific CD8(+) T-cells without the need for in vitro re-stimulation. Moreover, when combined with multi-color flow cytometry, pMHC-I tetramer staining can reveal key aspects of Ag-specific CD8(+) T-cells, including differentiation stage, memory phenotype, and activation status...
December 23, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28056900/will-they-lead-by-example-assessment-of-vaccination-rates-and-attitudes-to-human-papilloma-virus-in-millennial-medical-students
#7
Nelia M Afonso, Maurice J Kavanagh, Stephanie M Swanberg, Jeanne M Schulte, Tracy Wunderlich, Victoria C Lucia
BACKGROUND: Human papillomavirus (HPV) is the most common sexually transmitted infection in the United States. It is also well established that HPV viruses are responsible for a variety of cancers. Little is known about the prevailing knowledge and attitudes toward the HPV vaccine in our future healthcare providers, a majority of whom were among the first in the target age group to receive the vaccine; the same vaccine that they will in turn be expected to recommend to their patients...
January 6, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28049469/discontools-a-database-to-identify-research-gaps-on-vaccines-pharmaceuticals-and-diagnostics-for-the-control-of-infectious-diseases-of-animals
#8
Declan O'Brien, Jim Scudamore, Johannes Charlier, Morgane Delavergne
BACKGROUND: The public and private sector in the EU spend around €800 million per year on animal health and welfare related research. An objective process to identify critical gaps in knowledge and available control tools should aid the prioritisation of research in order to speed up the development of new or improved diagnostics, vaccines and pharmaceuticals and reduce the burden of animal diseases. METHOD: Here, we describe the construction of a database based on expert consultation for 52 infectious diseases of animals...
January 3, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28043507/t-cell-cytokine-responses-in-peripheral-blood-mononuclear-cells-from-patients-with-multidrug-resistant-tuberculosis-following-stimulation-with-proteins-purified-from-mycobacterium-tuberculosis-mdr-clinical-isolates
#9
Alireza Hadizadeh Tasbiti, Shamsi Yari, Mostafa Ghanei, Seyed Davar Siadat, Amir Amanzadeh, Payam Tabarsi, Keyvan Saeedfar, Ahmadreza Bahrmand
OBJECTIVE: Tuberculosis (TB) is a devastating disease that remains a major health threat worldwide. The appearance of Mycobacterium tuberculosis strains resistance to current antibiotics is a growing problem, both in the third world and in developed countries. Completion of genomic sequencing of M. tuberculosis provides a strong foundation for subsequent identification of proteins to aid the understanding of protein function and the discovery of new drug targets or a TB vaccine. This study employed a proteomics approach to identify proteins from antibiotic resistant M...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043486/tuberculosis-in-children
#10
Ali Akbar Velayati
Tuberculosis (TB) is the main cause of infection-related death in the world. Children make up ∼5-15% of all TB cases. Severe forms of disease such as meningitis and disseminated form are more common in children. Due to current estimates of World Health Organization (WHO) in 2015, one million children suffer from TB around the world; of these, it is estimated that more than 136,000 die a year. One study estimated 67million children with latent TB which develops to active form with the rate of ∼850,000 each year...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28029542/vector-based-genetically-modified-vaccines-exploiting-jenner-s-legacy
#11
Bahar Ramezanpour, Ingrid Haan, Ab Osterhaus, Eric Claassen
The global vaccine market is diverse while facing a plethora of novel developments. Genetic modification (GM) techniques facilitate the design of 'smarter' vaccines. For many of the major infectious diseases of humans, like AIDS and malaria, but also for most human neoplastic disorders, still no vaccines are available. It may be speculated that novel GM technologies will significantly contribute to their development. While a promising number of studies is conducted on GM vaccines and GM vaccine technologies, the contribution of GM technology to newly introduced vaccines on the market is disappointingly limited...
October 28, 2016: Vaccine
https://www.readbyqxmd.com/read/28024682/coming-of-age-women-s-sexual-and-reproductive-health-after-twenty-one-years-of-democracy-in-south-africa
#12
Diane Cooper, Jane Harries, Jennifer Moodley, Deborah Constant, Rebecca Hodes, Cathy Mathews, Chelsea Morroni, Margaret Hoffman
This paper is a sequel to a 2004 article that reviewed South Africa's introduction of new sexual and reproductive health (SRH) and rights laws, policies and programmes, a decade into democracy. Similarly to the previous article, this paper focuses on key areas of women's SRH: contraception and fertility, abortion, maternal health, HIV, cervical and breast cancer and sexual violence. In the last decade, South Africa has retained and expanded its sexual and reproductive health and rights (SRHR) policies in the areas of abortion, contraception, youth and HIV treatment (with the largest antiretroviral treatment programme in the world)...
November 2016: Reproductive Health Matters
https://www.readbyqxmd.com/read/28017443/european-strategy-for-vaccine-development-against-infectious-diseases
#13
Line Matthiessen, Hannu Lång, Maria Klimathianaki, Finnian Hanrahan, Barbara Kerstiëns, Alessandra Martini, Ruxandra Draghia-Akli
Immunisation efforts save millions of lives every year, but vaccines hold the potential to deliver even greater health benefits for mankind. Vaccine research and development is highly complex, and it requires concerted public funding efforts to support. In this paper we discuss EU funding priorities and the resulting recent advancements in European vaccine research, and we lay out the EU strategy for aiding promising vaccine candidates to successfully reach the market.
December 22, 2016: Vaccine
https://www.readbyqxmd.com/read/28006649/serodiagnosis-of-zika-virus-zikv-infections-by-a-novel-ns1-based-elisa-devoid-of-cross-reactivity-with-dengue-virus-antibodies-a-multicohort-study-of-assay-performance-2015-to-2016
#14
Katja Steinhagen, Christian Probst, Christiane Radzimski, Jonas Schmidt-Chanasit, Petra Emmerich, Marjan van Esbroeck, Janke Schinkel, Martin P Grobusch, Abraham Goorhuis, Jens M Warnecke, Erik Lattwein, Lars Komorowski, Andrea Deerberg, Sandra Saschenbrecker, Winfried Stöcker, Wolfgang Schlumberger
Serological diagnosis of Zika virus (ZIKV) infections is challenging due to high cross-reactivity between flaviviruses. We evaluated the diagnostic performance of a novel anti-ZIKV ELISA based on recombinant ZIKV non-structural protein 1 (NS1). Assay sensitivity was examined using sera from 27 patients with reverse transcription (RT)-PCR-confirmed and 85 with suspected ZIKV infection. Specificity was analysed using sera from 1,015 healthy individuals. Samples from 252 patients with dengue virus (n = 93), West Nile virus (n = 34), Japanese encephalitis virus (n = 25), chikungunya virus (n = 19) or Plasmodium spp...
December 15, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28003309/progress-toward-active-or-passive-hiv-1-vaccination
#15
REVIEW
Amelia Escolano, Pia Dosenovic, Michel C Nussenzweig
AIDS is a preventable disease. Nevertheless, according to UNAIDS, 2.1 million individuals were infected with HIV-1 in 2015 worldwide. An effective vaccine is highly desirable. Most vaccines in clinical use today prevent infection because they elicit antibodies that block pathogen entry. Consistent with this general rule, studies in experimental animals have shown that broadly neutralizing antibodies to HIV-1 can prevent infection, suggesting that a vaccine that elicits such antibodies would be protective. However, despite significant efforts over the last 30 years, attempts to elicit broadly HIV-1 neutralizing antibodies by vaccination failed until recent experiments in genetically engineered mice were finally successful...
January 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27997521/laboratory-diagnosis-of-breakthrough-varicella-in-children
#16
Masahiro Watanabe, Hitoshi Ochiai, Masahiro Ito, Manami Negoro, Shigeru Suga, Toshiaki Ihara
BACKGROUND: Breakthrough varicella (BV) develops in vaccinated persons as a result of infection by wild-type varicella zoster virus (VZV) more than 42 days after varicella vaccination. The clinical symptoms are atypical and clinical diagnosis can be difficult. We investigated laboratory-based diagnostic methods that are relatively simple and highly precise in order to conduct accurate surveillance. SUBJECTS AND METHODS: We enrolled 42 patients with suspected BV at two pediatric hospitals, and performed real-time polymerase chain reaction (PCR) on the skin lesions to confirm the BV diagnosis...
December 15, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27992563/impact-of-refugees-on-local-health-systems-a-difference-in-differences-analysis-in-cameroon
#17
Lambed Tatah, Tefera Darge Delbiso, Jose Manuel Rodriguez-Llanes, Julita Gil Cuesta, Debarati Guha-Sapir
Hosting refugees may represent a drain on local resources, particularly since external aid is frequently insufficient. Between 2004 and 2011, over 100,000 refugees settled in the eastern border of Cameroon. With little known on how refugee influx affects health services of the hosting community, we investigated the impact of refugees on mother and child health (MCH) services in the host community in Cameroon. We used Cameroon's 2004 and 2011 Demographic and Health Surveys to evaluate changes in MCH indicators in the refugee hosting community...
2016: PloS One
https://www.readbyqxmd.com/read/27981236/a-phylogeny-based-global-nomenclature-system-and-automated-annotation-tool-for-h1-hemagglutinin-genes-from-swine-influenza-a-viruses
#18
Tavis K Anderson, Catherine A Macken, Nicola S Lewis, Richard H Scheuermann, Kristien Van Reeth, Ian H Brown, Sabrina L Swenson, Gaëlle Simon, Takehiko Saito, Yohannes Berhane, Janice Ciacci-Zanella, Ariel Pereda, C Todd Davis, Ruben O Donis, Richard J Webby, Amy L Vincent
The H1 subtype of influenza A viruses (IAVs) has been circulating in swine since the 1918 human influenza pandemic. Over time, and aided by further introductions from nonswine hosts, swine H1 viruses have diversified into three genetic lineages. Due to limited global data, these H1 lineages were named based on colloquial context, leading to a proliferation of inconsistent regional naming conventions. In this study, we propose rigorous phylogenetic criteria to establish a globally consistent nomenclature of swine H1 virus hemagglutinin (HA) evolution...
November 2016: MSphere
https://www.readbyqxmd.com/read/27974399/serological-analysis-of-tuberculosis-in-goats-using-the-enferplex-caprine-tb-multiplex-test
#19
Amanda O'Brien, Clare Whelan, John B Clarke, Alastair Hayton, Neil J Watt, Gordon D Harkiss
Tuberculosis in goats is usually diagnosed clinically, at post-mortem, or by a positive skin test. However, none of these approaches detects all infected animals. Serology offers an additional tool to identify infected animals missed by current tests. We describe the use of the Enferplex Caprine TB serology test to aid management of a large dairy goat herd undergoing a tuberculosis breakdown. Initial skin and serology testing showed that IgG antibodies were present in 100% of skin test positive animals in both serum and milk, and in 77...
December 14, 2016: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/27965668/biomarker-tools-to-design-clinical-vaccines-determined-from-a-study-of-annual-listeriosis-incidence-in-northern-spain
#20
Ricardo Calderon-Gonzalez, Hector Teran-Navarro, José María Marimon, Claudia González-Rico, Jorge Calvo-Montes, Elisabet Frande-Cabanes, Miriam Alkorta-Gurrutxaga, M C Fariñas, Luis Martínez-Martínez, Emilio Perez-Trallero, Carmen Alvarez-Dominguez
Two regions of northern Spain, Gipuzkoa, and Cantabria present high annual incidence of listeriosis (1.86 and 1.71 cases per 100,000 inhabitants, respectively). We report that the high annual incidences are a consequence of infection with highly virulent Listeria monocytogenes isolates linked to fatal outcomes in elderly patients with cancer. In addition, listeriosis patients with cancer present low IL-17A/IL-6 ratios and significantly reduced levels of anti-GAPDH1-22 antibodies, identified as two novel biomarkers of poor prognosis...
2016: Frontiers in Immunology
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