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Cytokine adjuvant

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https://www.readbyqxmd.com/read/28822643/genetic-background-impacts-vaccine-induced-reduction-of-pneumococcal-colonization
#1
Kirsten Kuipers, Saskia van Selm, Fred van Opzeeland, Jeroen D Langereis, Lilly M Verhagen, Dimitri A Diavatopoulos, Marien I de Jonge
Vaccination has been one of the most successful strategies to reduce morbidity and mortality caused by respiratory infections. Recent evidence suggests that differences in the host genetic background and environmental factors may contribute to heterogeneity in the immune response to vaccination. During pre-clinical testing, vaccines are often evaluated in a single mouse inbred strain, which may not translate well to the heterogeneous human population. Here, we examined the influence of host genetic background on vaccine-induced protection against pneumococcal colonization in two commonly used inbred mouse strains, i...
August 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28821814/bifidobacterium-pseudocatenulatum-li09-and-bifidobacterium-catenulatum-li10-attenuate-d-galactosamine-induced-liver-injury-by-modifying-the-gut-microbiota
#2
Daiqiong Fang, Ding Shi, Longxian Lv, Silan Gu, Wenrui Wu, Yanfei Chen, Jing Guo, Ang Li, Xinjun Hu, Feifei Guo, Jianzhong Ye, Yating Li, Lanjian Li
The gut microbiota is altered in liver diseases, and several probiotics have been shown to reduce the degree of liver damage. We hypothesized that oral administration of specific Bifidobacterium strains isolated from healthy guts could attenuate liver injury. Five strains were tested in this study. Acute liver injury was induced by D-galactosamine after pretreating Sprague-Dawley rats with the Bifidobacterium strains, and liver function, liver and ileum histology, plasma cytokines, bacterial translocation and the gut microbiome were assessed...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821461/cutaneous-vaccination-with-coated-microneedles-prevents-development-of-airway-allergy
#3
Akhilesh Kumar Shakya, Chang Hyun Lee, Harvinder Singh Gill
Allergy cases are increasing worldwide. Currently allergies are treated after their appearance in patients. However, now there is effort to make a preventive vaccine against allergies. The rationale is to target patient populations that are already sensitized to allergens but have yet to develop severe forms of the allergic disease, or who are susceptible to allergy development but have not yet developed them. Subcutaneous injections and the sublingual route have been used as the primary mode of preventive vaccine delivery...
August 15, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28820635/effects-of-autologous-cytokine-induced-killer-cells-infusion-in-colorectal-cancer-patients-a-prospective-study
#4
Hao Peng, Meng Yao, Hongwei Fan, Liwei Song, Jinwen Sun, Zheng Zhou, Yunfeng Du, Keyu Lu, Tao Li, Aiguo Yin, Jianhua Xu, Shidong Wei
AIM: To evaluate the efficacy and safety of postoperative adjuvant immunotherapy with cytokine-induced killer (CIK) cells in combination with chemotherapy (CT) in colorectal cancer (CRC) patients. MATERIALS AND METHODS: A total of 46 patients were randomly assigned to either group 1 (control group) or group 2 (CIK group) using blocked randomization. Both groups received the FOLFOX4 (5-fluorouridine, leucovorin, and oxaliplatin) CT. In the CIK group, patients were given CIK cell infusion after FOLFOX4 CT...
August 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28814229/cell-mediated-and-humoral-immune-responses-to-bordetella-pertussis-inactivated-whole-cells-encapsulated-alginate-microspheres-as-a-new-vaccine-candidate
#5
Naser Mohammadpour Dounighi, Fereshteh Shahcheraghi, Mehdi Razzaghi-Abyaneh, Mojtaba Nofeli, Hossein Zolfagharian
BACKGROUND: Effectiveness of the whole-cell pertussis vaccine is apparent, but improvement in the quality of the vaccine is necessary to achieve strong immunogenicity with a low bacterial number content. METHODS: The inactivated Bordetella pertussis (B. pertussis) cells entrapped microspheres were prepared via an emulsification method and analyzed for morphology, size, size distribution, loading efficiency, loading capacity, release kinetic, in vivo cytokines and antigen specific antibody subclasses...
August 15, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28811960/rehmannia-glutinosa-polysaccharide-induces-toll-like-receptor-4-dependent-spleen-dendritic-cell-maturation-and-anti-cancer-immunity
#6
Li Xu, Minseok Kwak, Wei Zhang, Ling Zeng, Peter Chang-Whan Lee, Jun-O Jin
Rehmannia glutinosa polysaccharide (RGP) has shown an activation of immune cells in vitro. However, the immune stimulatory effect of RGP in a mouse in vivo is not well studied. In this study, we examined the effect of RGP on dendritic cell (DC) activation and anticancer immunity in vivo. Treatments of RGP in C56BL/6 mice induced increased levels of co-stimulatory molecule expression and pro-inflammatory cytokine production in spleen DCs dependent on toll-like receptor 4 (TLR4), and those DCs promoted interferon-gamma (IFNγ) production in CD4(+) and CD8(+) T cells...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28811235/sodium-butyrate-ameliorates-s100-fca-induced-autoimmune-hepatitis-through-regulation-of-intestinal-tight-junction-and-toll-like-receptor-signaling-pathway
#7
Jin-Lu Wu, Jia-Yun Zou, En-De Hu, Da-Zhi Chen, Lu Chen, Feng-Bin Lu, Lan-Man Xu, Ming-Hua Zheng, Hui Li, Yu Huang, Xiao-Ya Jin, Yue-Wen Gong, Zhuo Lin, Xiao-Dong Wang, Ming-Fang Zhao, Yong-Ping Chen
BACKGROUND AND AIM: Recent investigation revealed that dysbiosis in the gut flora and disruption of permeability of intestinal barrier are possible causes for the development of autoimmune hepatitis. Supplementation of sodium butyrate has been suggested to protect liver injury from disrupted permeability of small intestine. In current study, we employed S100/Freund's complete adjuvant induced autoimmune hepatitis to investigate therapeutic efficacy of sodium butyrate and its mechanism in the liver and upper small intestine...
August 12, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28805287/nongenetically-modified-lactococcus-lactis-adjuvanted-vaccination-enhanced-innate-immunity-against-helicobacter-pylori
#8
Wei Liu, Zhoulin Tan, Hai Liu, Zhiqin Zeng, Shuanghui Luo, Huimin Yang, Lufeng Zheng, Tao Xi, Yingying Xing
BACKGROUND: Gram-positive enhancer matrix particles (GEM) produced by Lactococcus lactis can enhance vaccine-induced immune response. However, the mechanism under which this adjuvant mounts the efficacy of orally administered vaccines remains unexplored. MATERIALS AND METHODS: We used a prophylactic mice model to investigate the mechanism of GEM-adjuvanted vaccination. Helicobacter pylori urease-specific antibody response was monitored and detected in murine serum by ELISA...
August 14, 2017: Helicobacter
https://www.readbyqxmd.com/read/28802902/pseudomonas-aeruginosa-mannose-sensitive-hemagglutinin-injection-treated-cytokine-induced-killer-cells-combined-with-chemotherapy-in-the-treatment-of-malignancies
#9
Chaoqi Zhang, Zhen Zhang, Liping Wang, Jiaoling Han, Feng Li, Chunyi Shen, Hong Li, Lan Huang, Xuan Zhao, Dongli Yue, Jianmin Huang, Yan Yan, Yi Zhang
Pseudomonas aeruginosa-mannose sensitive hemagglutinin (PA-MSHA) injection serves as immunological adjuvant in clinical treatment of cancer patients. In present study, we investigated whether PA-MSHA injection enhanced the anti-tumor efficacy of CIK cells. Twenty patients with malignancies were enrolled in this retrospective clinical trial. They were divided into two groups: 10 patients received PA-MSHA treated CIK cells transfusion combined with chemotherapy, and other patients accepted CIK cells and chemotherapy...
August 10, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28801270/immunomodulatory-effects-and-anti-candida-activity-of-lactobacilli-in-macrophages-and-in-invertebrate-model-of-galleria-mellonella
#10
Felipe Eduardo de Oliveira, Rodnei Dennis Rossoni, Patricia Pimentel de Barros, Barbara Evelyn Begnini, Juliana Campos Junqueira, Antonio Olavo Cardoso Jorge, Mariella Vieira Pereira Leão, Luciane Dias de Oliveira
Due to the growing number of multi-resistant Candida spp., adjuvant treatments that may help combat these fungal pathogens are relevant and useful. This study evaluated the immunomodulation and anti-Candida activity of Lactobacillus rhamnosus (LR), Lactobacillus acidophilus and Lactobacillus paracasei suspensions, either single- or multiple-strain, in mouse macrophages (RAW 264.7) and Galleria mellonella (GM). Mouse macrophages were activated by different lactobacilli suspensions and challenged with C. albicans (CA)...
August 8, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28795800/prompt-and-robust-humoral-immunity-elicited-by-a-conjugated-chimeric-malaria-antigen-with-a-truncated-flagellin
#11
Fangxia Guo, Yong Dong Liu, Chun Zhang, Qi Wang, Lianyan Wang, Yuhui Gao, Jingxiu Bi, Heng Wang, Zhiguo Su
As one of the pathogen-associated molecular patterns (PAMPs), flagellin is recently utilized as a potent adjuvant for many subunit vaccines. In this study, a truncated flagellin (tFL) with deletion of the hypervariable regions was adopted as a carrier-adjuvant by chemical conjugation with a chimeric malaria antigen M.RCAg-1 (M312) via a hetero-bifunctional PEG linker. After boosting immunization in mice without any extra adjuvants, the M312-PEG-tFL conjugates elicited 100-1,000 times higher M312-specific antibody titers than M312, and 10-100 times higher than the physical mixture of M312 and tFL...
August 10, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28790999/immunization-with-recombinant-tcdb-encapsulated-nanocomplex-induces-protection-against-clostridium-difficile-challenge-in-a-mouse-model
#12
Yi-Wen Liu, Yu-Hung Chen, Jenn-Wei Chen, Pei-Jane Tsai, I-Hsiu Huang
Clostridium difficile is considered to be one of the major cause of infectious diarrhea in healthcare systems worldwide. Symptoms of C. difficile infection are caused largely by the production of two cytotoxins: toxin A (TcdA) and toxin B (TcdB). Vaccine development is considered desirable as it would decrease the mounting medical costs and mortality associated with C. difficile infections. Biodegradable nanoparticles composed of poly-γ-glutamic acid (γ-PGA) and chitosan have proven to be a safe and effective antigen delivery system for many viral vaccines...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28782714/electroacupuncture-inhibits-nlrp3-inflammasome-activation-through-cb2-receptors-in-inflammatory-pain
#13
Fang Gao, Hong-Chun Xiang, Hong-Ping Li, Min Jia, Xiao-Li Pan, Hui-Lin Pan, Man Li
The therapeutic effect of electroacupuncture (EA) on inflammatory pain has been well recognized clinically. The inflammasome promotes the maturation of the inflammatory cytokines, and EA can stimulate cannabinoid CB2 receptors in inflamed tissues. In this study we investigated whether EA inhibits NLRP3 inflammasome activation through CB2 receptors and thus relieving inflammatory pain. Assay of Caspase-1 activity and western blotting revealed that complete Freund's adjuvant (CFA) injection activated the NLRP3 inflammasome in the skin tissue in rats, which was attenuated by EA treatment...
August 3, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28780375/adjuvant-formulations-for-virus-like-particle-vlp-based-vaccines
#14
REVIEW
Velasco Cimica, Jose M Galarza
The development of virus-like particle (VLP) technology has had an enormous impact on modern vaccinology. In order to optimize the efficacy and safety of VLP-based vaccines, adjuvants are included in most vaccine formulations. To date, most licensed VLP-based vaccines utilize the classic aluminum adjuvant compositions. Certain challenging pathogens and weak immune responder subjects may require further optimization of the adjuvant formulation to maximize the magnitude and duration of the protective immunity...
August 3, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
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
#15
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/28759646/local-cryotherapy-improves-adjuvant-induced-arthritis-through-down-regulation-of-il-6-il-17-pathway-but-independently-of-tnf%C3%AE
#16
Xavier Guillot, Hélène Martin, Stéphanie Seguin-Py, Katy Maguin-Gaté, Johnny Moretto, Perle Totoson, Daniel Wendling, Céline Demougeot, Nicolas Tordi
OBJECTIVES: Local cryotherapy is widely and empirically used in the adjuvant setting in rheumatoid arthritis treatment, however its own therapeutic and anti-inflammatory effects are poorly characterized. We aimed to evaluate the effects of local cryotherapy on local and systemic inflammation in Adjuvant-induced arthritis, a murine model of rheumatoid arthritis. METHODS: The effects of mild hypothermia (30°C for 2 hours) on cytokine protein levels (Multiplex/ELISA) were evaluated in vitro in cultured rat adjuvant-induced arthritis patellae...
2017: PloS One
https://www.readbyqxmd.com/read/28759159/peptosomes-for-vaccination-combining-antigen-and-adjuvant-in-polypept-o-ide-based-polymersomes
#17
Benjamin Weber, Cinja Kappel, Martin Scherer, Mark Helm, Matthias Bros, Stephan Grabbe, Matthias Barz
In this work, the first vaccine is reported based on a PeptoSome, which contains a model antigen (SIINFEKL) and adjuvant (CpG). PeptoSomes are polypept(o)ide-based polymersomes built of a block-copolymer with polysarcosine (PSar) as the hydrophilic block (X n = 111) and poly(benzyl-glutamic acid) (PGlu(OBn)) as the hydrophobic one (X n = 46). The polypept(o)ide is obtained with low dispersity index of 1.32 by controlled ring-opening polymerization. Vesicle formation by dual centrifugation technique allows for loading of vesicles up to 40 mol%...
July 31, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28754693/funiculosin-variants-and-phosphorylated-derivatives-promote-innate-immune-responses-via-the-toll-like-receptor-4-myeloid-differentiation-factor-2-complex
#18
Naoki Okamoto, Keisuke Mizote, Hiroe Honda, Akinori Saeki, Yasuharu Watanabe, Tomomi Yamaguchi-Miyamoto, Ryutaro Fukui, Natsuko Tanimura, Yuji Motoi, Sachiko Akashi-Takamura, Tatsuhisa Kato, Shigeto Fujishita, Takahito Kimura, Umeharu Ohto, Toshiyuki Shimizu, Takatsugu Hirokawa, Kensuke Miyake, Koichi Fukase, Yukari Fujimoto, Yoshinori Nagai, Kiyoshi Takatsu
The Toll-like receptor 4 (TLR4)/myeloid differentiation factor-2 (MD-2) complex is essential for LPS recognition and induces innate immune responses against gram-negative bacteria. As activation of TLR4/MD-2 is also critical for the induction of adaptive immune responses, TLR4/MD-2 agonists have been developed as vaccine adjuvants, but their efficacy has not yet been ascertained. Here, we demonstrate that a funiculosin (FNC) variant, FNC-RED, and FNC-RED and FNC derivatives are agonists for both murine and human TLR4/MD-2...
July 28, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28753580/gnp-gapdh1-22-nanovaccines-prevent-neonatal-listeriosis-by-blocking-microglial-apoptosis-and-bacterial-dissemination
#19
Ricardo Calderon-Gonzalez, Elisabet Frande-Cabanes, Hector Teran-Navarro, José María Marimon, Javier Freire, David Salcines-Cuevas, M Carmen Fariñas, Claudia Gonzalez-Rico, Marco Marradi, Isabel Garcia, Mirian Alkorta-Gurrutxaga, Aida San Nicolas-Gomez, Ana Castañeda-San Pedro, Sonsoles Yañez-Diaz, Soledad Penades, Carmen Punzon, Javier Gomez-Roman, Fernando Rivera, Manuel Fresno, Carmen Alvarez-Dominguez
Clinical cases of neonatal listeriosis are associated with brain disease and fetal loss due to complications in early or late pregnancy, which suggests that microglial function is altered. This is believed to be the first study to link microglial apoptosis with neonatal listeriosis and listeriosis-associated brain disease, and to propose a new nanovaccine formulation that reverses all effects of listeriosis and confers Listeria monocytogenes (LM)-specific immunity. We examined clinical cases of neonatal listeriosis in 2013-2015 and defined two useful prognostic immune biomarkers to design listeriosis vaccines: high anti-GAPDH1-22 titres and tumor necrosis factor (TNF)/interleukin (IL)-6 ratios...
July 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28752968/-effects-of-triptolide-on-the-autophagy-in-synovial-spleen-and-thymus-of-rats-with-adjuvant-arthritis
#20
Lei Wan, Jian Liu, Chuan-Bing Huang, Xiao-Jun Zhang, Ya-Li Wang, Ping-Heng Zhang, Yue Sun, Lei Liu
OBJECTIVE: To determine the effect of triptolide (TP) on the expression of ATG /LC3-Ⅱ Beclin1 in synovial, spleen, and thymusof rats with adjuvant arthritis (AA). METHODS: Rats were divided for four groups: normal control (NC), model control (MC), leflunomide (LEF) treatment, and triptolide (TP)treatment, with 12 rats in each group.The AA model was established through Freund's complete adjuvant (0.1 mL each) injection into the right foot plantar skin to introduce inflammation and 10 days of tail root injection of 0...
July 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
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