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https://www.readbyqxmd.com/read/29356205/antiviral-potential-of-medicinal-plants-against-hiv-hsv-influenza-hepatitis-and-coxsackievirus-a-systematic-review
#1
REVIEW
Muhammad Akram, Imtiaz Mahmood Tahir, Syed Muhammad Ali Shah, Zahed Mahmood, Awais Altaf, Khalil Ahmad, Naveed Munir, Muhammad Daniyal, Suhaila Nasir, Huma Mehboob
Viral infections are being managed therapeutically through available antiviral regimens with unsatisfactory clinical outcomes. The refractory viral infections resistant to available antiviral drugs are alarming threats and a serious health concern. For viral hepatitis, the interferon and vaccine therapies solely are not ultimate solutions due to recurrence of hepatitis C virus. Owing to the growing incidences of viral infections and especially of resistant viral strains, the available therapeutic modalities need to be improved, complemented with the discovery of novel antiviral agents to combat refractory viral infections...
January 22, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29355759/novel-subunit-vaccine-with-linear-array-epitope-protect-giant-grouper-against-nervous-necrosis-virus-infection
#2
Chao-Fen Lin, Han-Kai Jiang, Nai-Chi Chen, Ting-Yu Wang, Tzong-Yueh Chen
Viral nervous necrosis caused by nervous necrosis virus (NNV) is one of the most severe diseases resulting in high fish mortality rates and high economic losses in the giant grouper industry. Various NNV vaccines have been evaluated, such as inactivated viruses, virus-like particles (VLPs), recombinant coat proteins, synthetic peptides of coat proteins, and DNA vaccines. However, a cheaper manufacturing process and effective protection of NNV vaccines for commercial application are yet to be established. Hence, the present study developed a novel subunit vaccine composed of a carrier protein, receptor-binding domain of Pseudomonas exotoxin A, and tandem-repeated NNV coat protein epitopes by using the structural basis of epitope prediction and the linear array epitope (LAE) technique...
January 17, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29348479/prime-boost-vaccination-with-recombinant-protein-and-adenovirus-vector-expressing-plasmodium-vivax-circumsporozoite-protein-csp-partially-protects-mice-against-pb-pv-sporozoite-challenge
#3
Tarsila Mendes de Camargo, Elisângela Oliveira de Freitas, Alba Marina Gimenez, Luciana Chagas Lima, Karina de Almeida Caramico, Kátia Sanches Françoso, Oscar Bruna-Romero, Chiara Andolina, François Nosten, Laurent Rénia, Hildegund C J Ertl, Ruth S Nussenzweig, Victor Nussenzweig, Mauricio M Rodrigues, Arturo Reyes-Sandoval, Irene S Soares
Vaccine development against Plasmodium vivax malaria lags behind that for Plasmodium falciparum. To narrow this gap, we administered recombinant antigens based on P. vivax circumsporozoite protein (CSP) to mice. We expressed in Pichia pastoris two chimeric proteins by merging the three central repeat regions of different CSP alleles (VK210, VK247, and P. vivax-like). The first construct (yPvCSP-AllFL) contained the fused repeat regions flanked by N- and C-terminal regions. The second construct (yPvCSP-AllCT) contained the fused repeat regions and the C-terminal domain, plus RI region...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343619/quantitative-analysis-of-vaccine-antigen-adsorption-to-aluminum-adjuvant-using-an-automated-high-throughput-method
#4
Patrick L Ahl, Sheng-Ching Wang, Ramesh Chintala, Christopher D Mensch, William J Smith, Marc Wenger, Jeffrey T Blue
Aluminum containing adjuvants have been widely used in vaccine formulations to safely and effectively potentiate the immune response. The examination of the extent of antigen adsorption to aluminum adjuvant is always evaluated during the development of aluminum adjuvant containing vaccines. A rapid automated high throughput assay was developed to measure antigen adsorption in a 96-well plate format using a TECAN Freedom EVO® (TECAN). The antigen adsorption levels at a constant adjuvant concentration for each sample were accurately measured at 12 antigen /adjuvant (w/w) formulation ratios...
January 17, 2018: PDA Journal of Pharmaceutical Science and Technology
https://www.readbyqxmd.com/read/29343428/development-and-pre-clinical-evaluation-in-the-swine-model-of-a-mucosal-vaccine-tablet-for-human-influenza-viruses-a-proof-of-concept-study
#5
V Busignies, G Simon, G Mollereau, O Bourry, V Mazel, M Rosa-Calatrava, P Tchoreloff
Liquid vaccine formulations present some disadvantages such as stability problems, cold chain requirement or administration by trained personnel. Vaccine formulated as tablets would present a wide range of progress such as an increase stability that would facilitate the administration, the distribution and the storage of vaccine formulations. This work investigates the possibility to develop a mucosal tablet vaccine for human influenza viruses. The tablets were tested in vitro for biological efficacy and stability and in vivo in swine as a model for influenza A virus immunity...
January 14, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29339972/evaluation-of-green-tea-extract-as-a-safe-personal-hygiene-against-viral-infections
#6
Yun Ha Lee, Yo Han Jang, Young-Seok Kim, Jinku Kim, Baik Lin Seong
Background: Viral infections often pose tremendous public health concerns as well as economic burdens. Despite the availability of vaccines or antiviral drugs, personal hygiene is considered as effective means as the first-hand measure against viral infections. The green tea catechins, in particular, epigallocatechin-3-gallate (EGCG), are known to exert potent antiviral activity. In this study, we evaluated the green tea extract as a safe personal hygiene against viral infections. Results: Using the influenza virus A/Puerto Rico/8/34 (H1N1) as a model, we examined the duration of the viral inactivating activity of green tea extract (GTE) under prolonged storage at various temperature conditions...
2018: Journal of Biological Engineering
https://www.readbyqxmd.com/read/29337870/glioblastoma-under-siege-an-overview-of-current-therapeutic-strategies
#7
REVIEW
Mayra Paolillo, Cinzia Boselli, Sergio Schinelli
Glioblastoma is known to be one of the most lethal and untreatable human tumors. Surgery and radiotherapy in combination with classical alkylating agents such as temozolomide offer little hope to escape a poor prognosis. For these reasons, enormous efforts are currently devoted to refine in vivo and in vitro models with the specific goal of finding new molecular aberrant pathways, suitable to be targeted by a variety of therapeutic approaches, including novel pharmaceutical formulations and immunotherapy strategies...
January 16, 2018: Brain Sciences
https://www.readbyqxmd.com/read/29336668/safety-and-biodistribution-of-sulfated-archaeal-glycolipid-archaeosomes-as-vaccine-adjuvants
#8
Bassel Akache, Felicity C Stark, Umar Iqbal, Wangxue Chen, Yimei Jia, Lakshmi Krishnan, Michael J McCluskie
Archaeosomes are liposomes comprised of ether lipids derived from various archaea. Unlike conventional ester-linked liposomes, archaeosomes exhibit high pH and thermal stability. As adjuvants, archaeosomes can induce robust, long-lasting humoral and cell-mediated immune responses and enhance protection in murine models of infectious disease and cancer. Archaeosomes constituted with total polar lipids (TPL) of various archaea are relatively complex, comprising >10 different lipid compounds. Archaeosomes can be constituted with semi-synthetic glycerolipids built on ether-linked isoprenoid phytanyl cores with varied synthetic glycol- and amino-head groups...
January 16, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29328884/evaluation-of-g2-citric-acid-based-dendrimer-as-an-adjuvant-in-veterinary-rabies-vaccine
#9
Vahid Asgary, Alireza Shoari, Majid Afshar Moayad, Mehdi Shafiee Ardestani, Razieh Bigdeli, Leila Ghazizadeh, Mohammad Sadeq Khosravy, Erfan Panahnejad, Alireza Janani, Rouzbeh Bashar, Maliheh Abedi, Reza Ahangari Cohan
For induction of an appropriate immune response, especially in the case of an inactivated vaccine, the use of an adjuvant is crucial. In this study, adjuvanticity effect of G2 dendrimer in veterinary rabies vaccine has been investigated. A nonlinear globular G2 dendrimer comprising citric acid and polyethylene glycol 600 (PEG-600) was synthesized and the toxicity was studied in vitro on the J774A.1 cell line. The adjuvanticity effect of the dendrimer was then investigated on rabies virus in NMRI mice as a model...
January 2018: Viral Immunology
https://www.readbyqxmd.com/read/29325699/co-delivery-of-tumor-antigen-and-dual-toll-like-receptor-ligands-into-dendritic-cell-by-silicon-microparticle-enables-efficient-immunotherapy-against-melanoma
#10
Motao Zhu, Xilai Ding, Ruifang Zhao, Xuewu Liu, Haifa Shen, Chunmei Cai, Mauro Ferrari, Helen Y Wang, Rong-Fu Wang
Despite the importance and promise of cancer vaccines for broader prevention and treatment of cancer, limited clinical responses are observed, suggesting that key rational designs are required for inducing potent immune responses against cancer. Here we report a mesoporous silicon vector (MSV) as a multi-functional microparticle for formulating an efficient cancer vaccine composed of B16 melanoma derived-tyrosinase related protein 2 (TRP2) peptide and dual toll-like receptor (TLR) agonists. We demonstrated that MSV microparticles protected the peptide from rapid degradation for prolonged antigen presentation to immune cells...
January 8, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29324304/injectable-polypeptide-hydrogel-for-dual-delivery-of-antigen-and-tlr3-agonist-to-modulate-dendritic-cells-in%C3%A2-vivo-and-enhance-potent-cytotoxic-t-lymphocyte-response-against-melanoma
#11
Huijuan Song, Pingsheng Huang, Jinfeng Niu, Gaona Shi, Chuangnian Zhang, Deling Kong, Weiwei Wang
Transplantation of immune cells manipulated in vitro to dictate immune responses in the body is promising in cancer immunotherapy. However, this approach suffers from low cell survival after administration, insufficient cell homing to lymph nodes, and off-target. Here we demonstrate an injectable and self-assembled poly(l-valine) hydrogel as the delivery carrier of cargoes including antigen and immunopotentiator for DCs modulation. Our results indicate the vaccine formulation composed of tumor cell lysates (TCL), TLR3 agonist, poly(I:C) and polypeptide hydrogel can robustly recruit, activate and mature DCs in vitro and in vivo by sustained release of TCL and poly(I:C)...
January 3, 2018: Biomaterials
https://www.readbyqxmd.com/read/29324238/immunization-with-recombinant-flid-confers-protection-against-helicobacter-pylori-infection-in-mice
#12
Amir Ghasemi, Nazanin Mohammad, Josef Mautner, Mehrnaz Taghipour Karsabet, Abolfazl Ardjmand, Rezvan Moniri
Nearly half of the world's population is infected with Helicobacter pylori. Clinical manifestations of this infection range from gastritis and peptic ulcers to gastric adenocarcinoma and lymphoma. Due to the emerging of antibiotic resistant strains and poor patient compliance of the antibiotic therapy, there is increasing interest in the development of a protective vaccine against H. pylori infection. The bacterial protein FliD forms a capping structure on the end of each flagellum which is critical to prevent depolymerization and structural degradation...
January 8, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29321075/a-phase-i-open-label-trial-on-the-safety-and-immunogenicity-of-the-adjuvanted-tuberculosis-subunit-vaccine-h1-ic31%C3%A2-in-people-living-in-a-tb-endemic-area
#13
Jemal Hussein, Martha Zewdie, Lawrence Yamuah, Ahmed Bedru, Markos Abebe, Alemnew F Dagnew, Menberework Chanyalew, Asfawesen G Yohannes, Jemal Ahmed, Howard Engers, T Mark Doherty, Peter Bang, Ingrid Kromann, Søren T Hoff, Abraham Aseffa
BACKGROUND: H1/IC31® is a tuberculosis (TB) subunit vaccine candidate consisting of the fusion protein of Ag85B and ESAT-6 (H1) formulated with the IC31® adjuvant. Previous trials have reported on the H1/IC31® vaccine in M. tuberculosis (Mtb)-naïve, BCG-vaccinated and previously Mtb-infected individuals. In this trial, conducted between December 2008 and April 2010, the safety and immunogenicity of H1/IC31® was assessed in participants living in Ethiopia - a highly TB-endemic area...
January 10, 2018: Trials
https://www.readbyqxmd.com/read/29317873/construction-and-identification-of-a-recombinant-plasmid-encoding-echinococcus-granulosus-oncosphere-antigen-eg95
#14
Nahideh Mazaheri, Abdolhossein Dalimi, Majid Pirestani, Farnoosh Jameie, Mehdi Mohebali, Mohamad Bagher Rokni
Background: Cystic echinococcosis (CE), as a zoonotic disease cause to health threat and economic losses. Despite implemented control programs, few countries have been able to decrease or eliminate this infection. Vaccination of the intermediate host offers an additional strategy to control the parasite transmission and EG95 antigen is considered more than the others in the vaccine issue. According to the high protection induced by the EG95 recombinant vaccine, this study was designed to construct recombinant plasmid formulation of EG95 antigen...
October 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/29317163/investigations-into-the-efficacy-of-multi-component-cocaine-vaccines
#15
Atsushi Kimishima, Margaret E Olson, Kim D Janda
Although cocaine addiction remains a serious health and societal problem in the United States, no FDA-approved treatment has been developed. Vaccines offer an exciting strategy for the treatment of cocaine addiction; however, vaccine formulations need to be optimized to improve efficacy. Herein, we examine the effectiveness of a tricomponent cocaine vaccine, defined as having its hapten (GNE) and adjuvant (cytosine-guanine oligodeoxynucleotide 1826, CpG ODN 1826) covalently linked via the immunogenic protein ovalbumin (OVA)...
December 20, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29317110/cationic-liposomes-formulated-with-a-novel-whole-leishmania-lysate-wll-as-a-vaccine-for-leishmaniasis-in-murine-model
#16
Iman Jafari, Vahid Heravi Shargh, Maryam Shahryari, Azam Abbasi, Mahmoud Reza Jaafari, Ali Khamesipour, Ali Badiee
Although there have been numerous attempts to develop a successful vaccine against leishmaniasis, based on the clinical trial in this field, no vaccine against Leishmania in routine way can be found for globally effective vaccination in human. Amongst, first generation vaccines consisting of parasite fractions or whole killed Leishmania showed more successful results in clinical trials. It seems that the main reason for the low efficacy of these vaccines is lack of a suitable adjuvant. In this study, a crude extract of detergent-solubilized L...
December 28, 2017: Immunobiology
https://www.readbyqxmd.com/read/29316978/in-vivo-testing-of-novel-vaccine-prototypes-against-actinobacillus-pleuropneumoniae
#17
Fabio Antenucci, Cyrielle Fougeroux, Alannah Deeney, Cathrine Ørskov, Andrew Rycroft, Peter Johannes Holst, Anders Miki Bojesen
Actinobacillus pleuropneumoniae (A. pleuropneumoniae) is a Gram-negative bacterium that represents the main cause of porcine pleuropneumonia in pigs, causing significant economic losses to the livestock industry worldwide. A. pleuropneumoniae, as the majority of Gram-negative bacteria, excrete vesicles from its outer membrane (OM), accordingly defined as outer membrane vesicles (OMVs). Thanks to their antigenic similarity to the OM, OMVs have emerged as a promising tool in vaccinology. In this study we describe the in vivo testing of several vaccine prototypes for the prevention of infection by all known A...
January 9, 2018: Veterinary Research
https://www.readbyqxmd.com/read/29315762/effect-of-apoptosis-associated-speck-like-protein-containing-a-caspase-recruitment-domain-on-vaccine-efficacy-overcoming-the-effects-of-its-deficiency-with-aluminum-hydroxide-adjuvant
#18
Deuk-Ki Lee, Eun-Young Lee, Ryoon-Ho Kim, Hye-Won Kwak, Joo Young Kim, Hun Kim, Kyung-Won Kang, Sang-Myeong Lee, Jong-Hwan Park, Jun Chang, Jae-Hwan Nam
Host factors such as nutritional status and immune cell state are important for vaccine efficacy. Inflammasome activation may be important for triggering vaccine-induced humoral and cell-mediated immune responses. Formulations with alum as a typical adjuvant to overcome the effects of host factors have recently been shown to induce inflammasome activation, which augments vaccine efficacy. Apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) is one of main components of inflammasomes, but it is not clear whether ASC affects the vaccine-induced immune response...
January 8, 2018: Microbiology and Immunology
https://www.readbyqxmd.com/read/29313255/subcutaneous-administration-cpg-odns-acts-as-a-potent-adjuvant-for-an-hiv-1-tat-based-vaccine-candidate-to-elicit-cellular-immunity-in-balb-c-mice
#19
Zeinab Panahi, Asghar Abdoli, Ghasem Mosayebi, Mehdi Mahdavi, Fariborz Bahrami
OBJECTIVE: To evaluate the combined effects of CpG oligodeoxynucleotides (CpG-ODNs) adjuvant and subcutaneous injection route on efficacy of a HIV-1-tat DNA vaccine candidate using BALB/c mice as an animal model. RESULTS: Evaluation of cellular and humoral immunity of mice injected subcutaneously with HIV-1-tat gene cloned into a pcDNA3.1 vector indicated that significant levels of IFN-γ cytokine secretion (900 pg/ml), lymphocyte proliferation (2.5 stimulation index) and IgG2a (1...
January 8, 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29311242/vaccine-linked-chemotherapy-improves-benznidazole-efficacy-for-acute-chagas-disease
#20
Kathryn Jones, Leroy Versteeg, Ashish Damania, Brian Keegan, April Kendricks, Jeroen Pollet, Julio Vladimir Cruz-Chan, Fabian Gusovsky, Peter J Hotez, Maria Elena Bottazzi
Chagas disease affects 6-7 million people worldwide, resulting in significant disease burdens and healthcare costs in endemic countries. Chemotherapeutic treatment is restricted to two parasiticidal drugs benznidazole and nifurtimox. Both drugs are highly effective during acute disease, but are only minimally effective during chronic disease and fraught with significant adverse clinical effects. In experimental models, vaccines can be used to induce parasite specific balanced TH1/TH2 immune responses that effectively reduce parasite burdens and associated inflammation while minimizing adverse effects...
January 8, 2018: Infection and Immunity
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