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https://www.readbyqxmd.com/read/29321677/recognition-by-host-nuclear-transport-proteins-drives-disorder-to-order-transition-in-hendra-virus-v
#1
Sarah C Atkinson, Michelle D Audsley, Kim G Lieu, Glenn A Marsh, David R Thomas, Steven M Heaton, Jason J Paxman, Kylie M Wagstaff, Ashley M Buckle, Gregory W Moseley, David A Jans, Natalie A Borg
Hendra virus (HeV) is a paramyxovirus that causes lethal disease in humans, for which no vaccine or antiviral agent is available. HeV V protein is central to pathogenesis through its ability to interact with cytoplasmic host proteins, playing key antiviral roles. Here we use immunoprecipitation, siRNA knockdown and confocal laser scanning microscopy to show that HeV V shuttles to and from the nucleus through specific host nuclear transporters. Spectroscopic and small angle X-ray scattering studies reveal HeV V undergoes a disorder-to-order transition upon binding to either importin α/β1 or exportin-1/Ran-GTP, dependent on the V N-terminus...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29259271/clearance-of-a-persistent-picornavirus-infection-is-associated-with-enhanced-pro-apoptotic-and-cellular-immune-responses
#2
Carolina Stenfeldt, Michael Eschbaumer, George R Smoliga, Luis L Rodriguez, James Zhu, Jonathan Arzt
Long-term persistent viral infections cause substantial morbidity and associated economic losses in human and veterinary contexts. Yet, the mechanisms associated with establishment of persistent infections are poorly elucidated. We investigated immunomodulatory mechanisms associated with clearance versus persistence of foot-and-mouth disease virus (FMDV) in micro-dissected compartments of the bovine nasopharynx by microarray. The use of laser-capture microdissection allowed elucidation of differential gene regulation within distinct anatomic compartments critical to FMDV infection...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29220398/a-minimally-invasive-optical-trapping-system-to-understand-cellular-interactions-at-onset-of-an-immune-response
#3
David G Glass, Niall McAlinden, Owain R Millington, Amanda J Wright
T-cells and antigen presenting cells are an essential part of the adaptive immune response system and how they interact is crucial in how the body effectively fights infection or responds to vaccines. Much of the experimental work studying interaction forces between cells has looked at the average properties of bulk samples of cells or applied microscopy to image the dynamic contact between these cells. In this paper we present a novel optical trapping technique for interrogating the force of this interaction and measuring relative interaction forces at the single-cell level...
2017: PloS One
https://www.readbyqxmd.com/read/29208646/a-serum-protein-signature-associated-with-outcome-after-anti-pd1-therapy-in-metastatic-melanoma
#4
Mario Sznol, Ryan J Sullivan, Shauna Blackmon, Genevieve Boland, Harriet M Kluger, Ruth Halaban, Antonella Bacchiocchi, Paolo A Ascierto, Marilena Capone, Carlos Oliveira, Krista Meyer, Julia Grigorieva, Senait G Asmellash, Joanna Roder, Heinrich Roder, Jeffrey S Weber
A mass spectrometry analysis was performed using serum from patients receiving checkpoint inhibitors to define baseline protein signatures associated with outcome in metastatic melanoma. Pre-treatment serum was obtained from a development set of 119 melanoma patients on a trial of nivolumab with or without a multi-peptide vaccine and from patients receiving pembrolizumab, nivolumab, ipilimumab, or both nivolumab and ipilimumab. Spectra were obtained using matrix assisted laser desorption/ionization time of flight mass spectrometry...
December 5, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/29194033/immunoproteomic-analysis-of-the-protein-repertoire-of-unsporulated-eimeria-tenella-oocysts
#5
Zhenchao Zhang, Shuai Wang, Charles Li, Liheng Liu
The apicomplexan protozoans Eimeria spp. cause coccidioses, the most common intestinal diseases in chickens. Coccidiosis is associated with significant animal welfare issues and has a high economic impact on the poultry industry. Lack of a full understanding of immunogenic molecules and their precise functions involved in the Eimeria life cycles may limit development of effective vaccines and drug therapies. In this study, immunoproteomic approaches were used to define the antigenic protein repertoire from the total proteins of unsporulated Eimeria tenella oocysts...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/29157262/immunoproteomic-analysis-of-the-excretory-secretory-products-of-trichinella-pseudospiralis-adult-worms-and-newborn-larvae
#6
Yang Wang, Xue Bai, Haichao Zhu, Xuelin Wang, Haining Shi, Bin Tang, Pascal Boireau, Xuepeng Cai, Xuenong Luo, Mingyuan Liu, Xiaolei Liu
BACKGROUND: The nematode Trichinella pseudospiralis is an intracellular parasite of mammalian skeletal muscle cells and exists in a non-encapsulated form. Previous studies demonstrated that T. pseudospiralis could induce a lower host inflammatory response. Excretory-secretory (ES) proteins as the most important products of host-parasite interaction may play the main functional role in alleviating host inflammation. However, the ES products of T. pseudospiralis early stage are still unknown...
November 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29149812/architectures-and-mechanical-properties-of-drugs-and-complexes-of-surface-active-compounds-at-air-water-and-oil-water-interfaces
#7
Dipak K Sarker
BACKGROUND: Drugs can represents a multitude of compounds from proteins and peptides, such as growth hormones and insulin and on to simple organic molecules such as flurbiprofen, ibuprofen and lidocaine. Given the chemical nature of these compounds two features are always present. A portion or portions of the molecule that has little affinity for apolar surfaces and media and the opposite a series of part or one large part that has considerable affinity for hydrophilic, polar or charged media and surfaces...
November 17, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29037785/novel-bilayer-dissolving-microneedle-arrays-with-concentrated-plga-nano-microparticles-for-targeted-intradermal-delivery-proof-of-concept
#8
Lalit K Vora, Ryan F Donnelly, Eneko Larraneta, Patricia González-Vázquez, Raghu Raj Singh Thakur, Pradeep R Vavia
Polymeric microneedle (MN) arrays continue to receive growing attention due to their ability to bypass the skin's stratum corneum barrier in a minimally-invasive fashion and achieve enhanced transdermal drug delivery and "targeted" intradermal vaccine administration. In this research work, we fabricated biodegradable bilayer MN arrays containing nano - microparticles for targeted and sustained intradermal drug delivery. For this study, model drug (vitamin D3, VD3)-loaded PLGA nano- and microparticles (NMP) were prepared by a single emulsion solvent evaporation method with 72...
October 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28946696/immunogenicity-of-egfp-marked-recombinant-lactobacillus-casei-against-transmissible-gastroenteritis-virus-and-porcine-epidemic-diarrhea-virus
#9
Meiling Yu, Li Wang, Sunting Ma, Xiaona Wang, Yusai Wang, Ya Xiao, Yanping Jiang, Xinyuan Qiao, Lijie Tang, Yigang Xu, Yijing Li
Porcine transmissible gastroenteritis virus (TGEV) and porcine epidemic diarrhea virus (PEDV) are the causative agents of highly fatal acute diarrhea in pigs, resulting in enormous losses in the pig industry worldwide. To develop an effective bivalent oral vaccine against TGEV and PEDV infection, the D antigenic site of the TGEV spike (S) protein and the major antigen site (core neutralizing epitope-COE) of the PEDV S protein were used as immunogens, and the enhanced green fluorescent protein (eGFP) gene was used as a reporter to construct genetically engineered Lactobacillus casei rLpPGF-T7g10-eGFP-6D-COE...
September 25, 2017: Viruses
https://www.readbyqxmd.com/read/28919557/synergistic-effects-of-dendritic-cell-targeting-and-laser-microporation-on-enhancing-epicutaneous-skin-vaccination-efficacy
#10
Yoan Machado, Sanne Duinkerken, Veronika Hoepflinger, Melissa Mayr, Evgeniia Korotchenko, Almedina Kurtaj, Isabel Pablos, Markus Steiner, Angelika Stoecklinger, Joyce Lübbers, Maximillian Schmid, Uwe Ritter, Sandra Scheiblhofer, Michael Ablinger, Verena Wally, Sarah Hochmann, Anna M Raninger, Dirk Strunk, Yvette van Kooyk, Josef Thalhamer, Richard Weiss
Due to its unique immunological properties, the skin is an attractive target tissue for allergen-specific immunotherapy. In our current work, we combined a dendritic cell targeting approach with epicutaneous immunization using an ablative fractional laser to generate defined micropores in the upper layers of the skin. By coupling the major birch pollen allergen Bet v 1 to mannan from S. cerevisiae via mild periodate oxidation we generated hypoallergenic Bet-mannan neoglycoconjugates, which efficiently targeted CD14(+) dendritic cells and Langerhans cells in human skin explants...
September 14, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28900429/plasma-derived-polyreactive-secretory-like-iga-and-igm-opsonizing-salmonella-enterica-typhimurium-reduces-invasion-and-gut-tissue-inflammation-through-agglutination
#11
Gilles Bioley, Justine Monnerat, Marius Lötscher, Cédric Vonarburg, Adrian Zuercher, Blaise Corthésy
Due to the increasing emergence of antibiotic-resistant strains of enteropathogenic bacteria, development of alternative treatments to fight against gut infections is a major health issue. While vaccination requires that a proper combination of antigen, adjuvant, and delivery route is defined to elicit protective immunity at mucosae, oral delivery of directly active antibody preparations, referred to as passive immunization, sounds like a valuable alternative. Along the gut, the strategy suffers, however, from the difficulty to obtain sufficient amounts of antibodies with the appropriate specificity and molecular structure for mucosal delivery...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28859241/mir-125b-1-and-mir-378a-are-predictive-biomarkers-for-the-efficacy-of-vaccine-treatment-against-colorectal-cancer
#12
Hironori Tanaka, Shoichi Hazama, Michihisa Iida, Ryouichi Tsunedomi, Hiroko Takenouchi, Masao Nakajima, Yukio Tokumitsu, Shinsuke Kanekiyo, Yoshitaro Shindo, Shinobu Tomochika, Yoshihiro Tokuhisa, Kazuhiko Sakamoto, Nobuaki Suzuki, Shigeru Takeda, Shigeru Yamamoto, Shigefumi Yoshino, Tomio Ueno, Yoshihiko Hamamoto, Yusuke Fujita, Hiroaki Tanaka, Ko Tahara, Ryoichi Shimizu, Kiyotaka Okuno, Koji Fujita, Masahiko Kuroda, Yusuke Nakamura, Hiroaki Nagano
Many clinical trials of peptide vaccines have been conducted. However, these vaccines have provided clinical benefits in only a small fraction of patients. The purpose of the present study was to explore microRNAs (miRNAs) as novel predictive biomarkers for the efficacy of vaccine treatment against colorectal cancer. First, we carried out microarray analysis of pretreatment cancer tissues in a phase I study, in which peptide vaccines alone were given. Candidate miRNAs were selected by comparison of the better prognosis group with the poorer prognosis group...
November 2017: Cancer Science
https://www.readbyqxmd.com/read/28840259/treatment-outcomes-of-recurrent-respiratory-papillomatosis-retrospective-analysis-of-juvenile-and-adult-cases
#13
V-A Papaioannou, A Lux, S Voigt-Zimmermann, C Arens
BACKGROUND: Recurrent respiratory papillomatosis (RRP) is a rare, chronic disease of viral etiology which is characterized by multiple, recurrent growth of papillomas in the aerodigestive tract. MATERIALS AND METHODS: The surgical outcomes and the recurrence rates of 106 patients with RRP of the larynx were analyzed. The patients were treated at the University of Magdeburg between 1983 and 2014. The surgical outcomes of conventional and laser surgery regarding time to relapse and complications were compared...
August 24, 2017: HNO
https://www.readbyqxmd.com/read/28776443/exploring-the-immunopotentiation-of-chinese-yam-polysaccharide-poly-lactic-co-glycolic-acid-nanoparticles-in-an-ovalbumin-vaccine-formulation-in-vivo
#14
Li Luo, Tao Qin, Yifan Huang, Sisi Zheng, Ruonan Bo, Zhenguang Liu, Jie Xing, Yuanliang Hu, Jiaguo Liu, Deyun Wang
Biocompatible and biodegradable poly(lactic-co-glycolic acid) (PLGA) has been approved by the US Food and Drug Administration and has frequently been used to develop potential vaccine delivery systems. The immunoregulation and immunopotentiation of Chinese yam polysaccharide (CYP) have been widely demonstrated. In the current study, cell uptake mechanisms in dendritic cells (DCs) were monitored in vitro using confocal laser scanning microscopy, transmission electron microscopy, and flow cytometry. To study a CYP-PLGA nanoparticle-adjuvanted delivery system, CYP and ovalbumin (OVA) were encapsulated in PLGA nanoparticles (CYPPs) to act as a vaccine, and the formulation was tested in immunized mice...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28755834/immunogenicity-of-adenovirus-vaccines-expressing-the-pcv2-capsid-protein-in-pigs
#15
Delong Li, Qian Du, Bin Wu, Juejun Li, Lingling Chang, Xiaomin Zhao, Yong Huang, Dewen Tong
Porcine circovirus type 2 (PCV2) is the main pathogen of porcine circovirus associated disease (PCVAD), causing great economic losses in pig industry. In previous study, we constructed adenovirus vector vaccines expressing PCV2 Cap either modified with Intron A and WPRE, or CD40L and GMCSF, and evaluated all of these vaccines in mice and in pigs. Although Ad-A-C-W and Ad-CD40L-Cap-GMCSF could induce stronger immune responses than Ad-Cap, neither of them was better than commercial inactivated vaccine PCV2 SH-strain...
July 26, 2017: Vaccine
https://www.readbyqxmd.com/read/28746382/gelatin-nanoparticles-enhance-delivery-of-hepatitis-c-virus-recombinant-ns2-gene
#16
Salwa Sabet, Marina A George, Haidan M El-Shorbagy, Heba Bassiony, Khaled Y Farroh, Tareq Youssef, Taher A Salaheldin
BACKGROUND: Development of an effective non-viral vaccine against hepatitis C virus infection is of a great importance. Gelatin nanoparticles (Gel.NPs) have an attention and promising approach as a viable carrier for delivery of vaccine, gene, drug and other biomolecules in the body. AIM OF WORK: The present study aimed to develop stable Gel.NPs conjugated with nonstructural protein 2 (NS2) gene of Hepatitis C Virus genotype 4a (HCV4a) as a safe and an efficient vaccine delivery system...
2017: PloS One
https://www.readbyqxmd.com/read/28733985/lalf32-51-e7-a-hpv-16-therapeutic-vaccine-candidate-forms-protein-body-like-structures-when-expressed-in-nicotiana-benthamiana-leaves
#17
Romana J R Yanez, Renate Lamprecht, Milaid Granadillo, Isis Torrens, Elsa Arcalís, Eva Stöger, Edward P Rybicki, Inga I Hitzeroth
High-risk human papillomaviruses (HPVs) cause cervical cancer, and while there are good prophylactic vaccines on the market, these are ineffective against established infections, creating a clear need for therapeutic vaccines. The HPV E7 protein is one of the essential oncoproteins for the onset and maintenance of malignancy and is therefore an ideal therapeutic vaccine target. We fused the HPV-16 E7 protein to the Limulus polyphemus antilipopolysaccharide factor (LALF32-51 ), a small hydrophobic peptide that can penetrate cell membranes and that has immunomodulatory properties...
July 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28722543/comparison-of-ovalbumin-and-ovalbumin-epitope-peptide-for-transdermal-delivery-and-vaccination-mediated-by-the-photothermal-effect-of-gold-nanorods
#18
Aung Thu Haine, Yuji Miyamoto, Taishi Higashi, Keiichi Motoyama, Hidetoshi Arima, Takuro Niidome
Transdermal protein delivery is a powerful and attractive method for protein therapy and dermal vaccination compared with other administrations. However, this delivery method is restricted by the low permeability of the stratum corneum (SC), a hydrophobic barrier that restricts the entry of hydrophilic molecules such as proteins. In this study, we developed an improved gel patch system carrying ovalbumin and ovalbumin epitope peptide, and then compared their permeability into the skin. First, the gel patch was placed on mouse skin to allow contact with the polymer coated gold nanorods and then irradiated by a continuous-wave laser...
July 26, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28710539/-treatment-outcomes-of-recurrent-respiratory-papillomatosis-retrospective-analysis-of-juvenile-and-adult-cases-german-version
#19
V-A Papaioannou, A Lux, S Voigt-Zimmermann, C Arens
BACKGROUND: Recurrent respiratory papillomatosis (RRP) is a rare, chronic disease of viral etiology which is characterized by multiple, recurrent growth of papillomas in the aerodigestive tract. MATERIALS AND METHODS: The surgical outcomes and the recurrence rates of 106 patients with RRP of the larynx were analyzed. The patients were treated at the University of Magdeburg between 1983 and 2014. The surgical outcomes of conventional and laser surgery regarding time to relapse and complications were compared...
November 2017: HNO
https://www.readbyqxmd.com/read/28710250/near-infrared-1064-nm-laser-modulates-migratory-dendritic-cells-to-augment-the-immune-response-to-intradermal-influenza-vaccine
#20
Kaitlyn Morse, Yoshifumi Kimizuka, Megan P K Chan, Mai Shibata, Yusuke Shimaoka, Shu Takeuchi, Benjamin Forbes, Christopher Nirschl, Binghao Li, Yang Zeng, Roderick T Bronson, Wataru Katagiri, Ayako Shigeta, Ruxandra F Sîrbulescu, Huabiao Chen, Rhea Y Y Tan, Kosuke Tsukada, Timothy Brauns, Jeffrey Gelfand, Ann Sluder, Joseph J Locascio, Mark C Poznansky, Niroshana Anandasabapathy, Satoshi Kashiwagi
Brief exposure of skin to near-infrared (NIR) laser light has been shown to augment the immune response to intradermal vaccination and thus act as an immunologic adjuvant. Although evidence indicates that the NIR laser adjuvant has the capacity to activate innate subsets including dendritic cells (DCs) in skin as conventional adjuvants do, the precise immunological mechanism by which the NIR laser adjuvant acts is largely unknown. In this study we sought to identify the cellular target of the NIR laser adjuvant by using an established mouse model of intradermal influenza vaccination and examining the alteration of responses resulting from genetic ablation of specific DC populations...
August 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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