نتایج جستجو برای: omv adjuvant
تعداد نتایج: 44182 فیلتر نتایج به سال:
مقدمه : هموفیلوس آنفلوانزا تیپ b ( hib ) یکی از علل اصلی مننژیت در نوزادان و کودکان در کشورهای در حال توسعه است و هر ساله حداقل 3 میلیون مورد بیماری ناشی از hib در سراسر جهان ایجاد می شود. کپسول hib ، عامل اصلی بیماری زایی می باشد. کپسول پلی ساکارید کونژوگه شده به پروتئین حامل در پیشگیری از عفونت ها مؤثر است. واکسیناسیون علیه hib تاکنون در برنامه واکسیناسیون معمول کشور قرار نگرفته است. هدف از ا...
Despite high vaccination coverage world-wide, whooping cough, a highly contagious disease caused by Bordetella pertussis, is recently increasing in occurrence suggesting that novel vaccine formulations targeted at the prevention of colonization and transmission should be investigated. To identify new candidates for inclusion in the acellular formulation, we used spontaneously released outer mem...
BACKGROUND Bacterial outer membrane vesicles (OMV) are packets of periplasmic material that, via the proteins and other molecules they contain, project metabolic function into the environment. While OMV production is widespread in proteobacteria, they have been extensively studied only in pathogens, which inhabit fully hydrated environments. However, many (arguably most) bacterial habitats, suc...
Robust biofilm formation by Vibrio fischeri depends upon activation of the symbiosis polysaccharide (syp) locus, which is achieved by overexpressing the RscS sensor kinase (RscS(+)). Other than the Syp polysaccharide, however, little is known about V. fischeri biofilm matrix components. In other bacteria, biofilms contain polysaccharides, secreted proteins, and outer membrane vesicles (OMVs). H...
Eosinophil cationic protein (ECP), a cytotoxic protein contained in eosinophils granules, can contribute to various inflammatory responses. Although Helicobacter pylori infection increases infiltration of eosinophils, the mechanisms of eosinophil degranulation by H. pylori infection are largely unknown. The goal of this study was to investigate the role of H. pylori outer membrane vesicles (OMV...
Outer membrane vesicle (OMV) release by Gram-negative bacteria has been observed and studied for decades. First considered as a by-product of cell lysis, it soon became evident that OMVs are actively secreted from the outer membrane (OM) of Gram-negative bacteria. Accordingly, these small particles (~ 10-300 nm in diameter) consist mainly of OM components like phospholipids (PLs), OM proteins, ...
Seven strains of Oncorhynchus masou virus (OMV) genomes were analyzed with the restriction endonucleases BamHI, EcoRI, HindIII and SmaI. The restriction patterns of OMV strain DNAs were divided into four groups. Restriction profiles of high passage strains (00-7812, 65th passage, and H-83, 60th passage) were different from those of low passage strains (00-7812, 8th passage, and H-83, 6th passag...
The highly potent and selective anti-herpesvirus agent, (E)-5-(2-bromovinyl)-2'deoxyuridine (BVdU), was examined for its inhibitory effect on the salmonid herpesviruses Oncorhynchus masou virus (OMV) and Herpesvirus salmonis (H. salmonis). Minimum inhibitory concentrations (MIC) of BVdU for OMV and H. salmonis were 1.25 and 3.0 micrograms/ml, respectively; these values were equal to or higher t...
The prediction of efficacy of Neisseria meningitidis serogroup B (MenB) vaccines is currently hindered due to the lack of an appropriate correlate of protection. For outer membrane vesicle (OMV) vaccines, immunogenicity has primarily been determined by the serum bactericidal antibody (SBA) assay and OMV enzyme-linked immunosorbent assay (ELISA). However, the opsonophagocytic assay (OPA), surfac...
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