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Alum adjuvant

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https://www.readbyqxmd.com/read/28056837/vaccination-with-toxofilin-dna-in-combination-with-an-alum-monophosphoryl-lipid-a-mixed-adjuvant-induces-significant-protective-immunity-against-toxoplasma-gondii
#1
Pengxia Song, Shenyi He, Aihua Zhou, Gang Lv, Jingjing Guo, Jian Zhou, Yali Han, Huaiyu Zhou, Zhen Hao, Hua Cong
BACKGROUND: A widely prevalent disease, toxoplasmosis poses serious health threats to both humans and animals; therefore, development of an ideal DNA vaccine against Toxoplasma gondii is needed eagerly. The purpose of the present study is to assess the protective efficacy of a DNA vaccine encoding the T. gondii toxofilin gene (pEGFP-toxofilin). In addition, toxofilin DNA vaccine combined with the individual adjuvants, alum or monophosphoryl lipid A (MPLA), or a mixture of alum-MPLA adjuvant were screened for their ability to enhance antibody responses...
January 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28043381/characterization-and-vaccine-potential-of-fasciola-gigantica-saposin-like-protein-1-sap-1
#2
Pornanan Kueakhai, Narin Changklungmoa, Pinkamon Waseewiwat, Thanaporn Thanasinpaiboon, Werachon Cheukamud, Pannigan Chaichanasak, Prasert Sobhon
The recombinant Fasciola gigantica Saposin-like protien-1 (rFgSAP-1) was cloned by polymerase chain reaction (PCR) from NEJ cDNA, expressed in Escherichia coli BL21 (DE3) and used for production of a polyclonal antibody in rabbits (anti-rFgSAP-1). By immunoblotting and immunohistochemistry, rabbit IgG anti-rFgSAP-1 reacted with rFgSAP-1 at a molecular weight 12kDa, but not with rFgSAP-2. The rFgSAP-1 reacted with antisera from mouse infected with F. gigantica metacercariae collected at 2, 4, and 6 weeks after infection...
January 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28036315/evaluation-of-the-immunogenic-property-of-nt-h-influenzae-protein-d-with-neisseria-meningitidis-omv-in-balb-c
#3
Ava Behrouzi, Saeid Bouzari, Seyed Davar Siadat, Mana Oloomi, Mehdi Davari, Hoora Mazaheri
INTRODUCTION: Identifying ideal non typeable Haemophilus influenzae (NTHi) vaccine candidates has not been easy due to extensive sequence and antigenic variation among gene products interacting with the immune system. Protein D (PD) is a highly conserved 42 kDa surface lipoprotein available in all H. influenzae, including NTHi. METHODOLOGY: In this study, the gene encoding PD was cloned from H. influenzae and expressed in Escheriachia coli TOPO10 cell in pBAD vector...
December 30, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/27996363/randomized-double-blind-multi-center-phase-iii-clinical-trial-to-evaluate-the-immunogenicity-and-safety-of-mg1109-egg-based-pre-pandemic-influenza-a-h5n1-vaccine-in-healthy-adults
#4
Joon Young Song, Min Joo Choi, Ji Yun Noh, Won Suk Choi, Hee Jin Cheong, Seong-Heon Wie, Jin-Soo Lee, Gyu-Jin Woo, Sang Ho Lee, Woo Joo Kim
Considering the pandemic potential of avian influenza A/H5N1, development of an effective and well-tolerated vaccine is an essential part of pandemic preparedness plans. This phase III, randomized, double-blind study was conducted to assess the immunogenicity and safety profile of an alum-adjuvanted, whole virion, pre-pandemic influenza A/H5N1 vaccine (MG1109). Healthy individuals were randomly assigned, in a 3:1 ratio, to receive two doses of either MG1109 or placebo containing alum gel. Immunogenicity was determined by hemagglutination inhibition (HI) and microneutralization (MN) assays...
December 20, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27995337/functional-characterization-of-recombinant-major-envelope-protein-rb2l-of-orf-virus
#5
Revanaiah Yogisharadhya, Amit Kumar, Raghavendra Ramappa, Gnanavel Venkatesan, Veerakyathappa Bhanuprakash, Sathish Bhadravati Shivachandra
Orf, or contagious ecthyma, a highly contagious transboundary disease of sheep and goats, is caused by a double-stranded DNA virus (ORFV) belonging to the genus Parapoxvirus of the family Poxviridae. The ORFV genome encodes the major envelope proteins B2L and F1L, which have been found to be highly immunogenic and have multiple functional characteristics. In order to investigate the functional properties of the B2L protein, in this study, the B2L gene of ORFV strain 59/05, encoding recombinant mature B2L (aa 1M-D334), was produced as a fusion protein in Escherichia coli...
December 19, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27958370/comparative-systems-analyses-reveal-molecular-signatures-of-clinically-tested-vaccine-adjuvants
#6
Thorunn A Olafsdottir, Madelene Lindqvist, Intawat Nookaew, Peter Andersen, Jeroen Maertzdorf, Josefine Persson, Dennis Christensen, Yuan Zhang, Jenna Anderson, Sakda Khoomrung, Partho Sen, Else Marie Agger, Rhea Coler, Darrick Carter, Andreas Meinke, Rino Rappuoli, Stefan H E Kaufmann, Steven G Reed, Ali M Harandi
A better understanding of the mechanisms of action of human adjuvants could inform a rational development of next generation vaccines for human use. Here, we exploited a genome wide transcriptomics analysis combined with a systems biology approach to determine the molecular signatures induced by four clinically tested vaccine adjuvants, namely CAF01, IC31, GLA-SE and Alum in mice. We report signature molecules, pathways, gene modules and networks, which are shared by or otherwise exclusive to these clinical-grade adjuvants in whole blood and draining lymph nodes of mice...
December 13, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27928002/adjuvanting-an-siv-vaccine-with-tlr-ligands-encapsulated-in-nanoparticles-induces-persistent-antibody-responses-and-enhanced-protection-in-trim5%C3%AE-restrictive-macaques
#7
Sudhir Pai Kasturi, Pamela A Kozlowski, Helder I Nakaya, Matheus C Burger, Pedro Russo, Mathew Pham, Yevgeniy Kovalenkov, Eduardo L V Silveira, Colin Havenar-Daughton, Samantha L Burton, Katie M Kilgore, Mathew J Johnson, Rafiq Nabi, Traci Legere, Zarpheen Jinnah Sher, Xuemin Chen, Rama R Amara, Eric Hunter, Steven E Bosinger, Paul Spearman, Shane Crotty, Francois Villinger, Cynthia A Derdeyn, Jens Wrammert, Bali Pulendran
: Our previous work has shown that antigens adjuvanted with specific ligands for toll-like receptor 4 (TLR4) and TLR7/8 encapsulated in poly (lactic-co-glycolic acid) (PLGA) based nanoparticles (NP), induced robust and durable immune responses in mice and macaques. We investigated the efficacy of these NP adjuvants in inducing protective immunity against simian immunodeficiency virus (SIV). Rhesus macaques (RMs) were immunized with NP containing TLR4 and TLR7/8 agonists mixed with soluble recombinant SIVmac239 derived envelope (Env) gp140 and Gag p55 (Protein), or with virus like particles (VLP) containing SIVmac239 Env and Gag...
December 7, 2016: Journal of Virology
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
#8
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/27895176/the-syk-nfat-il-2-pathway-in-dendritic-cells-is-required-for-optimal-sterile-immunity-elicited-by-alum-adjuvants
#9
Hanif Javanmard Khameneh, Adrian W S Ho, Roberto Spreafico, Heidi Derks, Hazel Q Y Quek, Alessandra Mortellaro
Despite a long history and extensive usage of insoluble aluminum salts (alum) as vaccine adjuvants, the molecular mechanisms underpinning Ag-specific immunity upon vaccination remain unclear. Dendritic cells (DCs) are crucial initiators of immune responses, but little is known about the molecular pathways used by DCs to sense alum and, in turn, activate T and B cells. In this article, we show that alum adjuvanticity requires IL-2 specifically released by DCs, even when T cell secretion of IL-2 is intact. We demonstrate that alum, as well as other sterile particulates, such as uric acid crystals, induces DCs to produce IL-2 following initiation of actin-mediated phagocytosis that leads to Src and Syk kinase activation, Ca(2+) mobilization, and calcineurin-dependent activation of NFAT, the master transcription factor regulating IL-2 expression...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27881702/roles-of-aluminum-hydroxide-and-monophosphoryl-lipid-a-adjuvants-in-overcoming-cd4-t-cell-deficiency-to-induce-isotype-switched-igg-antibody-responses-and-protection-by-t-dependent-influenza-vaccine
#10
Eun-Ju Ko, Young-Tae Lee, Ki-Hye Kim, Youri Lee, Yu-Jin Jung, Min-Chul Kim, Yu-Na Lee, Taeuk Kang, Sang-Moo Kang
Vaccine adjuvant effects in the CD4-deficient condition largely remain unknown. We investigated the roles of combined monophosphoryl lipid A (MPL) and aluminum hydroxide (Alum) adjuvant (MPL+Alum) in inducing immunity after immunization of CD4 knockout (CD4KO) and wild-type (WT) mice with T-dependent influenza vaccine. MPL+Alum adjuvant mediated IgG isotype-switched Abs, IgG-secreting cell responses, and protection in CD4KO mice, which were comparable to those in WT mice. In contrast, Alum adjuvant effects were dependent on CD4(+) T cells...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27876908/effect-of-two-hydatid-cyst-antigens-on-the-growth-of-melanoma-cancer-in-c57-black-mice
#11
Milad Badri Chookami, Seyedeh Maryam Sharafi, Raheleh Rafiei Sefiddashti, Rasool Jafari, Mehran Bahadoran, Nader Pestechian, Hossein Yousofi Darani
Hydatid cyst is the larval stage of Echinococcus granulosus. In previous studies inhibitory effect of this parasite on cancer cell growth in culture medium has been shown. In this study effect of hydatid cyst antigens on tumor growth in experimental animals has been investigated. Two antigens of hydatid cyst including protoscolices excretory secretory antigen and hydatid fluid absorbed on alum as adjuvant were injected to two groups of C57/black mice as case groups. Control groups were injected with only saline and alum...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27876902/evaluation-of-the-alum-naloxone-adjuvant-activity-against-experimental-murine-leishmaniasis-due-to-l-major
#12
REVIEW
Arezoo Bozorgomid, Habib Mohammadzadeh Hajipirloo, Khosrow Hazrati Tappeh, Naser Nazari, Seyed Ahmad Karamati, Samira Shirooie
Leishmaniasis is caused by intracellular parasites of Leishmania species, which are transmitted by the bite of the sandfly. Recovery and protection against the infection depends on the induction of a strong Th1 type of immune response. Vaccination of mice with the opioid antagonist naloxone can promote the activation of the Th1 responses. We studied the efficacy of the mixture of naloxone and alum, as an adjuvant, to enhance immune responses and induce protection against Leishmania major infection in BALB/c as a susceptible mouse model...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27865948/neuronal-fc-epsilon-receptor-i-contributes-to-antigen-evoked-pruritus-in-a-murine-model-of-ocular-allergy
#13
Fan Liu, Lubin Xu, Naze Chen, Mo Zhou, Chunyan Li, Qian Yang, Yikuan Xie, Yuguang Huang, Chao Ma
Pruritus is the major symptom of ocular allergy but currently available treatments are often ineffective. Previous studies demonstrated that subpopulations of primary sensory neurons express Fc receptors and may contribute to antigen-specific pain. We investigated the role of neuronal Fc-epsilon Receptor I (FcεRI) in allergic ocular pruritus. Ovalbumin (OVA) was used as allergen together with alum adjuvant (OVA+alum) to produce a mouse model of ocular allergy with a significant elevation in the serum levels of both antigen-specific IgE and IgG...
November 16, 2016: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27860553/developing-an-inactivated-rotavirus-vaccine-and-evaluating-the-immunogenicity-against-a-commercially-available-attenuated-rotavirus-vaccine-using-a-mice-animal-model
#14
Ayaa S M Hashim, Khaled M A Aboshanab, Aly F M El-Sayed
There is a high demand for public immunization against Rotavirus (RV), especially in Africa. In Africa, the attenuated RV vaccination is contraindicated in patients with immune diseases and nutrition deficiency. Therefore, the inactivated RV vaccine (IRVV) could be an alternative. In this study, we aimed to develop a pentavalent-IRVV using the most circulating RV strains in Egypt and evaluate it against the commercially available Rotarix(®) vaccine. Trial-IRVV was developed with 5% sucrose, 2% polysorbate-80, and adsorbed on Alum to potentiate the vaccine immune response...
December 2016: Viral Immunology
https://www.readbyqxmd.com/read/27858706/adjuvants-for-clostridium-tetani-and-clostridium-diphtheriae-vaccines-updating
#15
Fatimah M Alshanqiti, Saad B Al-Masaudi, Ahmed M Al-Hejin, Elrashdy M Redwan
It's known that diphtheria and tetanus are a contagious lethal disease over the years, they caused by pathogenic microbes corynebacterium diphtheria and Clostridium tetani, respectively. The diseases result from the production of bacterial toxin. Vaccination with bacterial toxoid vaccines adsorbed on particulates adjuvants still are the best way to prevent this epidemic diseases from spread. The particulate vaccines have been shown to be more efficient than soluble one for the induction of the immune responses...
November 4, 2016: Human Antibodies
https://www.readbyqxmd.com/read/27856263/rational-design-of-protamine-nanocapsules-as-antigen-delivery-carriers
#16
José Vicente González-Aramundiz, Elena Presas, Inmaculada Dalmau-Mena, Susana Martínez-Pulgarín, Covadonga Alonso, José M Escribano, María J Alonso, Noemi Stefánia Csaba
: Current challenges in global immunization indicate the demand for new delivery strategies, which could be applied to the development of new vaccines against emerging diseases, as well as to improve safety and efficacy of currently existing vaccine formulations. Here, we report a novel antigen nanocarrier consisting of an oily core and a protamine shell, further stabilized with pegylated surfactants. These nanocarriers, named protamine nanocapsules, were rationally designed to promote the intracellular delivery of antigens to immunocompetent cells and to trigger an efficient and long-lasting immune response...
November 14, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27843506/promotion-of-nickel-ni-allergy-by-anamnestic-sensitization-with-a-bacterial-component-lipopolysaccharide-lps-in-mice
#17
Norimasa Adachi, Eiji Takayama, Makoto Adachi, Masako Mizuno-Kamiya, Harumi Kawaki, Hiroko Takeuchi, Shuri Kubo, Hajime Ishigami, Masakazu Kurachi, Nobuo Kondoh
BACKGROUND/OBJECTIVE: Lipopolysaccharides (LPS) promote allergic responses to nickel (Ni) both in the sensitization and elicitation steps. In this study, we examine the effect of pre-sensitization to LPS on the occurrence of Ni allergy using a mouse model. METHOD: A 100 mg of LPS was injected into C57BL/6J mice intraperitoneally (ip). Three weeks later, the mice were subsequently injected with 0.3 μ moles of nickel dichloride (NiCl2) and 100 μg of CpG-DNA, which acted as an adjuvant...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27814377/antibody-persistence-and-booster-responses-to-split-virion-h5n1-avian-influenza-vaccine-in-young-and-elderly-adults
#18
Rajeka Lazarus, Sarah Kelly, Matthew D Snape, Corinne Vandermeulen, Merryn Voysey, Karel Hoppenbrouwers, Annick Hens, Pierre Van Damme, Stephanie Pepin, Isabel Leroux-Roels, Geert Leroux-Roels, Andrew J Pollard
: Avian influenza continues to circulate and remains a global health threat not least because of the associated high mortality. In this study antibody persistence, booster vaccine response and cross-clade immune response between two influenza A(H5N1) vaccines were compared. Participants aged over 18-years who had previously been immunized with a clade 1, A/Vietnam vaccine were re-immunized at 6-months with 7.5 μg of the homologous strain or at 22-months with a clade 2, alum-adjuvanted, A/Indonesia vaccine...
2016: PloS One
https://www.readbyqxmd.com/read/27803788/potentiation-of-human-papilloma-vaccine-candidate-using-naloxone-alum-mixture-as-an-adjuvant-increasing-immunogenicity-of-hpv-16e7d-vaccine
#19
Mahsa Yasaghi, Mehdi Mahdavi
OBJECTIVES: Many types of human papillomaviruses (HPVs) have been identified, with some leading to cancer and others to skin lesions such as anogenital warts. Studies have demonstrated an association between oncogenic HPV and cervical cancer and many researchers have focused on therapeutic vaccines development. At present, the modulatory effect of opioids on the innate and acquired immune system is characterized. Antagonists of opioid receptors such as naloxone (NLX) can contribute to the shifting Th2 response toward Th1...
September 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27797937/induction-of-humoural-and-cellular-immunity-by-immunisation-with-hcv-particle-vaccine-in-a-non-human-primate-model
#20
Hiroshi Yokokawa, Atsunori Higashino, Saori Suzuki, Masaki Moriyama, Noriko Nakamura, Tomohiko Suzuki, Ryosuke Suzuki, Koji Ishii, Kouji Kobiyama, Ken J Ishii, Takaji Wakita, Hirofumi Akari, Takanobu Kato
OBJECTIVE: Although HCV is a major cause of chronic liver disease worldwide, there is currently no prophylactic vaccine for this virus. Thus, the development of an HCV vaccine that can induce both humoural and cellular immunity is urgently needed. To create an effective HCV vaccine, we evaluated neutralising antibody induction and cellular immune responses following the immunisation of a non-human primate model with cell culture-generated HCV (HCVcc). DESIGN: To accomplish this, 10 common marmosets were immunised with purified, inactivated HCVcc in combination with two different adjuvants: the classically used aluminum hydroxide (Alum) and the recently established adjuvant: CpG oligodeoxynucleotide (ODN) wrapped by schizophyllan (K3-SPG)...
October 26, 2016: Gut
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