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vaccine and adjuvant

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https://www.readbyqxmd.com/read/27920777/physical-interaction-of-t-cells-with-dendritic-cells-is-not-required-for-the-immunomodulatory-effects-of-the-edible-mushroom-agaricus-subrufescens
#1
Ruud H P Wilbers, Lotte B Westerhof, Jan van de Velde, Geert Smant, Debbie R van Raaij, Anton S M Sonnenberg, Jaap Bakker, Arjen Schots
Mushrooms are well known for their immunomodulating capacities. However, little is known about how mushroom-stimulated dendritic cells (DCs) affect T cells. Therefore, we investigated the effect of mushroom compounds derived from seven edible mushroom species on DCs, their fate in DCs, and the effect of the mushroom-stimulated DCs on T cells. Each mushroom species stimulated DCs in a different manner as was revealed from the DC's cytokine response. Assessing DC maturation revealed that only one mushroom species, Agaricus subrufescens, induced complete DC maturation...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27919753/advax-a-delta-inulin-microparticle-potentiates-in-built-adjuvant-property-of-co-administered-vaccines
#2
Masayuki Hayashi, Taiki Aoshi, Yasunari Haseda, Kouji Kobiyama, Edward Wijaya, Noriyuki Nakatsu, Yoshinobu Igarashi, Daron M Standley, Hiroshi Yamada, Yoshikazu Honda-Okubo, Hiromitsu Hara, Takashi Saito, Toshiyuki Takai, Cevayir Coban, Nikolai Petrovsky, Ken J Ishii
Advax, a delta inulin-derived microparticle, has been developed as an adjuvant for several vaccines. However, its immunological characteristics and potential mechanism of action are yet to be elucidated. Here, we show that Advax behaves as a type-2 adjuvant when combined with influenza split vaccine, a T helper (Th)2-type antigen, but behaves as a type-1 adjuvant when combined with influenza inactivated whole virion (WV), a Th1-type antigen. In addition, an adjuvant effect was not observed when Advax-adjuvanted WV vaccine was used to immunize toll-like receptor (TLR) 7 knockout mice which are unable to respond to RNA contained in WV antigen...
December 1, 2016: EBioMedicine
https://www.readbyqxmd.com/read/27919632/immunogenicity-and-safety-of-a-13-valent-pneumococcal-conjugate-vaccine-and-an-mf59-adjuvanted-influenza-vaccine-after-concomitant-vaccination-in-%C3%A2-60-year-old-adults
#3
Joon Young Song, Hee Jin Cheong, Hak Jun Hyun, Yu Bin Seo, Jacob Lee, Seong-Heon Wie, Min Joo Choi, Won Suk Choi, Ji Yun Noh, Jae Won Yun, Jin Gu Yun, Woo Joo Kim
BACKGROUND: Concomitant administration of influenza and pneumococcal vaccines could be an efficient strategy to increase vaccine uptake among older adults. Nevertheless, immune interference and safety issues have been a concern when more than one vaccines are administered at the same time. METHODS: Subjects aged ⩾60years were randomized in a 1:1:1 ratio to receive MF59-adjuvanted trivalent inactivated influenza vaccine (MF59-aTIV)+13-valent pneumococcal conjugate vaccine (PCV13) (Group 1), PCV13 alone (Group 2), or MF59-aTIV alone (Group 3)...
December 2, 2016: Vaccine
https://www.readbyqxmd.com/read/27918250/evaluation-of-immunostimulatory-effects-of-n-2-hydroxy-propyl-3-trimethylammonium-chitosan-chloride-for-improving-live-attenuated-hepatitis-a-virus-vaccine-efficacy
#4
Wei Tao, Ting Fu, Zhuojing He, Ruxi Hu, Lan Jia, Yan Hong
This study was to evaluate the immunostimulatory effects of N-(2-hydroxy) propyl-3-trimethylammonium chitosan chloride (HTCC) as an adjuvant for improving a commercial live attenuated hepatitis A virus (HAV) vaccine efficacy in mice. Mice in the experimental group were intraperitoneally immunized with a solution of HTCC and live attenuated HAV vaccine. And for those injected with sterile water, HTCC or live attenuated HAV vaccine were treated as mock group, negative group, and positive group in turn. The serum HAV-specific IgG titers and the ratios of the serum HAV-specific IgG2a/IgG1 in the experimental group were significantly increased (p = 0...
December 5, 2016: Viral Immunology
https://www.readbyqxmd.com/read/27918020/effects-of-ovalbumin-protein-nanoparticle-vaccine-size-and-coating-on-dendritic-cell-processing
#5
Timothy Z Chang, Samantha S Stadmiller, Erika Staskevicius, Julie A Champion
Nanoparticle vaccine delivery platforms are a promising technology for enhancing vaccine immunogenicity. Protein nanoparticles (PNPs), made entirely from antigen, have been shown to induce protective immune responses against influenza. However, the fundamental mechanisms by which PNPs enhance component protein immunogenicity are not understood. Here, we investigate the role of size and coating of model ovalbumin (OVA) PNPs on particle uptake and trafficking, as well as on inflammation and maturation factor expression in dendritic cells (DCs) in vitro...
December 5, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27917627/enhanced-immune-responses-against-hiv-1-with-adenovector-gag-and-tat-prime-protein-boost-regimen-and-gm-csf-injection
#6
Negin Hosseini Rouzbahani, Saeed Bayanolhagh, Mohammad Gholami, Ali Esmaeilzadeh, Zahra Bayat Jozani, Minoo Mohraz, Ali Akbar Pourfathollah
Vaccines against the HIV-1 virus offers the best hope for eliminating HIV-associated mortality. Recombinant adenovector type 5 (rAd5) vaccine is a potential candidate for preventive vaccine strategies. In this study, we evaluated the rAd5 prime/protein boost strategy in a murine model. We used rAd5 harboring single HIV-1 genes. These genes, including gag (p24) and exon1 of tat, were amplified from HIV-1 (clade A) RNA using nested PCR. Recombinant vectors were constructed, purified and then injected at 1012 viral particles into four groups, each comprising five mice...
October 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27917172/immunization-strategies-against-piscirickettsia-salmonis-infections-review-of-vaccination-approaches-and-modalities-and-their-associated-immune-response-profiles
#7
REVIEW
Øystein Evensen
Salmonid rickettsial septicemia (SRS) is a serious, infectious disease in Chilean salmon farming caused by Piscirickettsia salmonis, causing heavy losses to the salmonid industry. P. salmonis belongs to the Gammaproteobacteria, order Thiotrichales. SRS was first described in Chile in 1989, and infection with P. salmonis has since been described from a high number of fish species and in several geographic regions globally. P. salmonis infection of salmonids causes multifocal, necrotic areas of internal organs such as liver, kidney, and spleen...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27916319/recombinant-viral-vectored-vaccines-for-the-control-of-avian-influenza-in-poultry
#8
David L Suarez, Mary J Pantin-Jackwood
Vaccination is a commonly used tool for the control of both low pathogenic and highly pathogenic avian influenza (AI) viruses. Traditionally, inactivated adjuvanted vaccines made from a low pathogenic field strain have been used for vaccination, but advances in molecular biology have allowed a number of different viral vectored vaccines, expressing the AI virus hemagglutinin (HA) gene, to be developed and licensed for use for control of AI. This review summarizes the licensed vector vaccines available for use in poultry...
November 24, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27914742/influenza-virus-specific-antibody-dependent-cellular-cytoxicity-induced-by-vaccination-or-natural-infection
#9
Rory D de Vries, Nella J Nieuwkoop, Mark Pronk, Erwin de Bruin, Geert Leroux-Roels, Elisabeth G W Huijskens, Rob S van Binnendijk, Florian Krammer, Marion P G Koopmans, Guus F Rimmelzwaan
Influenza viruses are responsible for substantial morbidity and mortality during seasonal epidemics. Vaccination is the most effective method to prevent infection, however due to antigenic drift of the viral surface protein hemagglutinin (HA), annual influenza virus vaccination is required. In addition to seasonal viruses, certain (avian) influenza A viruses of other subtypes, like H5N1 or H7N9, cause sporadic zoonotic infections. Therefore, the availability of game-changing novel vaccines that induce "universal" immune responses to a wide variety of influenza A virus subtypes is highly desirable...
November 30, 2016: Vaccine
https://www.readbyqxmd.com/read/27913028/active-immunization-with-brucella-abortus-s19-phage-lysate-elicits-serum-igg-that-protects-guinea-pigs-against-virulent-b-%C3%A2-abortus-and-protects-mice-by-passive-immunization
#10
Lata Jain, Mayank Rawat, Saravanan Ramakrishnan, Bablu Kumar
Brucellosis is an economically important zoonosis of worldwide significance. Earlier (Jain et al., 2015) we reported methodology for generation of phage lysate preparations against Brucella abortus S19 using brucellaphage 'ϕLd'. In this study, using a fixed dose (Two mouse PD100) of lysates, the prophylactic efficacies of both plain and alum gel adjuvanted lysates were evaluated in guinea pig by direct virulent challenge and passive mouse protection test (PMPT). Strong humoral and cell mediated immune responses in guinea pigs and protection comparable to S19 vaccine was observed with low dose (1...
November 29, 2016: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/27912987/gp85-protein-vaccine-adjuvanted-with-silica-nanoparticles-against-alv-j-in-chickens
#11
Jia Cheng, Shiyong Wen, Shenghua Wang, Pan Hao, Ziqiang Cheng, Yongxia Liu, Peng Zhao, Jianzhu Liu
This study focused on the effect of silica nanoparticles as adjuvant for vaccine applications comprised of gp85, a dominating structural protein of J Subgroup Avian Leukosis Virus (ALV-J), and which was evaluated by comparing with the responsiveness induced by that emulsified in Freund adjuvant. Thirty-six chickens were inoculated twice with gp85 adjuvanted with the silica nanoparticles or Freund's adjuvant at the 2nd and 3rd week old. Two weeks later, the inoculated chickens were challenged with a 10(2.2) 50% tissue culture infective dose (TCID50) of ALV-J...
November 29, 2016: Vaccine
https://www.readbyqxmd.com/read/27911873/interleukin-8-holds-promise-to-serve-as-a-molecular-adjuvant-in-dna-vaccination-model-against-streptococcus-iniae-infection-in-fish
#12
Erlong Wang, Bo Long, Kaiyu Wang, Jun Wang, Yang He, Xingli Wang, Qian Yang, Tao Liu, Defang Chen, Yi Geng, Xiaoli Huang, Ping Ouyang, Weimin Lai
DNA vaccines had been widely used in animal models against various viral infections, while it was not so convincing for many infectious diseases especially bacterial disease in aquaculture. Interleukin-8(IL-8) as one of the CXC chemokines, its immunological role and adjuvant potential which had been proved in mammals were rarely reported in fish species. In this study, recombination plasmid pcDNA3.1/IL-8(pcIL-8) was conducted and the capacity of IL-8 as molecular adjuvant was explored from several aspects by co-injecting with a DNA vaccine encoding α-enolase(pcENO) against Streptococcus iniae infection in channel catfish...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27910914/in-vivo-stepwise-immunomodulation-using-chitosan-nanoparticles-as-a-platform-nanotechnology-for-cancer-immunotherapy
#13
Hee Dong Han, Yeongseon Byeon, Jong-Hwa Jang, Hat Nim Jeon, Ga Hee Kim, Min Gi Kim, Chan-Gi Pack, Tae Heung Kang, In Duk Jung, Yong Taik Lim, Young Joo Lee, Jeong-Won Lee, Byung Cheol Shin, Hyung Jun Ahn, Anil K Sood, Yeong-Min Park
Dentritic cell (DC)-based cancer immunotherapy faces challenges in both efficacy and practicality. However, DC-based vaccination requires multiple injections and elaborates ex vivo manipulation, which substantially limits their use. Therefore, we sought to develop a chitosan nanoparticle (CH-NP)-based platform for the next generation of vaccines to bypass the ex vivo manipulation and induce immune responses via active delivery of polyinosinic-polycytidylic acid sodium salt (poly I:C) to target Toll-like receptor 3 (TLR3) in endosomes...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27909791/immunological-evaluation-of-a-dna-cocktail-vaccine-with-co-delivery-of-calcium-phosphate-nanoparticles-capns-against-the-toxoplasma-gondii-rh-strain-in-balb-c-mice
#14
Mohammad Taghi Rahimi, Shahabeddin Sarvi, Mahdi Sharif, Saeid Abediankenari, Ehsan Ahmadpour, Reza Valadan, Mahdi Fasihi- Ramandie, Seyed-Abdollah Hosseini, Ahmad Daryani
Many recent studies have been conducted to evaluate protective immunity mediated by DNA vaccines against toxoplasmosis. Cocktail DNA vaccines showed better immune responses compared to single vaccines. The objective of the current study was to evaluate the protective efficacy of rhomboid 4 (ROM4) and cocktail DNA vaccines (ROM4 + GRA14) of the Toxoplasma gondii RH strain with or without coated calcium phosphate nanoparticles (CaPNs) as the adjuvant to improve the immunogenicity against the T. gondii RH strain in BALB/c mice...
December 2, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27908965/inf-%C3%AE-encoding-plasmid-administration-triggers-bone-loss-and-disrupts-bone-marrow-microenvironment
#15
Dimitrios Agas, Guilherme Gusmâo Silva, Fulvio Laus, Andrea Marchigiani, Melania Capitani, Cecilia Vullo, Giuseppe Catone, Giovanna Lavava, Antonio Concetti, Luigi Marchetti, Maria Giovanna Sabbieti
IFN-γ is a pleotropic cytokine produced in the bone microenvironment. Although IFN-γ is known to play a critical role on bone remodeling, its function is not fully elucidated. Consistently, outcomes on the effects of IFN-γ recombinant protein on bone loss are contradictory among reports. In our work we explored, for the first time, the role of IFN-γ encoding plasmid (pIFN-γ) in a mouse model of osteopenia induced by ovariectomy and in the sham-operated counterpart to estimate its effects in skeletal homeostasis...
December 1, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27908640/flagellin-enhances-the-immunoprotection-of-formalin-inactivated-edwardsiella-tarda-vaccine-in-turbot
#16
Xiaohong Liu, Hua Zhang, Chenglong Jiao, Qin Liu, Yuanxing Zhang, Jingfan Xiao
Edwardsiella tarda is an important fish pathogen that causes extensive losses in farmed fish around the world. Various types of vaccines have been developed against E. tarda infection, such as inactivated vaccine, live attenuated vaccine and subunit vaccine. However, inactivated vaccine exhibits poor immune protection against edwardsiellosis in some reports. In this study, we aimed to evaluate the protective effect of formalin-killed cells (FKC) against E. tarda with flagellin, FlgD, as an adjuvant in turbot...
November 28, 2016: Vaccine
https://www.readbyqxmd.com/read/27908630/non-linear-dose-response-of-aluminium-hydroxide-adjuvant-particles-selective-low-dose-neurotoxicity
#17
Guillemette Crépeaux, Housam Eidi, Marie-Odile David, Yasmine Baba-Amer, Eleni Tzavara, Bruno Giros, François-Jérôme Authier, Christopher Exley, Christopher A Shaw, Josette Cadusseau, Romain K Gherardi
Aluminium (Al) oxyhydroxide (Alhydrogel(®)), the main adjuvant licensed for human and animal vaccines, consists of primary nanoparticles that spontaneously agglomerate. Concerns about its safety emerged following recognition of its unexpectedly long-lasting biopersistence within immune cells in some individuals, and reports of chronic fatigue syndrome, cognitive dysfunction, myalgia, dysautonomia and autoimmune/inflammatory features temporally linked to multiple Al-containing vaccine administrations. Mouse experiments have documented its capture and slow transportation by monocyte-lineage cells from the injected muscle to lymphoid organs and eventually the brain...
November 28, 2016: Toxicology
https://www.readbyqxmd.com/read/27903467/arterio-cutaneous-fistula-associated-with-bilateral-femoral-pseudoaneurysms-caused-by-bacillus-calmette-gu%C3%A3-rin-apropos-of-a-case-and-review-of-literature
#18
Álvaro Torres-Blanco, Francisco Gómez-Palonés, Gemma Edo-Fleta
Vascular complications of intravesical instillation of bacillus Calmette-Guérin (BCG) are rare. BCG is an attenuated strain of Mycobacterium bovis (M. Bovis) that was initially developed for vaccination against tuberculosis, but it has also been used as an adjuvant treatment for bladder transitional carcinoma. We report a patient with a history of instillation of BCG two years before, who underwent surgical treatment of 2 pseudoaneurysms. The first, located in the left superficial femoral artery (SFA), was resected and the artery was ligated because he had a history of femoropopliteal occlusion...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27903455/complexation-hydrogels-as-potential-carriers-in-oral-vaccine-delivery-systems
#19
Mia Yoshida, Noriyasu Kamei, Keiya Muto, Jun Kunisawa, Kozo Takayama, Nicholas A Peppas, Mariko Takeda-Morishita
Most current vaccine preparations are in injectable forms, which are inconvenient to patients and ineffective in mucosal immunization. Therefore, most research in this field has been directed at developing ideal oral vaccines enabling the induction of both systemic and mucosal immune responses. In the present study, we examined the utility of a pH-responsive polymeric carrier, poly (methacrylic acid-g-ethylene glycol) [P (MAA-g-EG)] hydrogel, as a potential oral vaccine carrier that can protect cargo proteins in the gastrointestinal tract...
November 26, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27903079/preclinical-evaluation-of-a-replication-deficient-recombinant-adenovirus-serotype-5-vaccine-expressing-guanylate-cyclase-c-and-the-padre-t-helper-epitope
#20
Adam Eugene Snook, Trevor R Baybutt, Terry Hyslop, Scott Arthur Waldman
There is an unmet need for improved therapeutics for colorectal cancer, the second leading cause of cancer mortality worldwide. Adjuvant chemotherapy only marginally improves survival in some patients, and has no benefit in others, underscoring the clinical opportunity for novel immunotherapeutic approaches to improve survival in colorectal cancer. In that context, guanylate cyclase C (GUCY2C) is an established biomarker and therapeutic target for metastatic colorectal cancer with immunological characteristics that promote durable antitumor efficacy without autoimmunity...
November 30, 2016: Human Gene Therapy Methods
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