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The linkage of an immunogen with a toll-like receptor ligand has great potential to induce highly potent immune responses with the initial features of antigen-presenting cell activation. In the current study, we expressed recombinant dengue-3 envelope protein domain III (D3ED III) in lipidated form using an Escherichia coli-based system. The recombinant lipidated dengue-3 envelope protein domain III...
The combination of recombinant protein antigens with an immunostimulator has the potential to greatly increase the immunogenicity of recombinant protein antigens. In the present study, we selected the dengue-4 envelope protein domain III as a dengue vaccine candidate and expressed the protein in lipidated form using an Escherichia coli-based system. The recombinant lipidated dengue-4 envelope protein...
This study was to evaluate the replication and pathogenicity of attenuated human metapneumovirus (HMPV) mutants in severe combined immunodeficiency (SCID) mice. SCID mice were intranasally infected with either wild type GFP-rHMPV (WT), or mutant viruses (M1, M2 and M4) with the N-linked glycosylation(s) of the F protein removed. The organs were collected for viral isolation, titration, pulmonary histopathology...
Rotavirus was detected in 52% of 2328 stool specimens collected from children with acute gastroenteritis admitted to three sentinel hospitals in Mainland China from January 2006 to December 2007. G3P[8] (42%) was the most common strain. Despite being common globally, only 18 (2%) G9-positive samples were identified. The VP7, VP4, VP6, and NSP4 genes were sequences for 13 of the G9 strains with G9P[8]...
We have developed a novel platform technology that can express high levels of recombinant lipoproteins with intrinsic adjuvant properties. In this study, Ag473 (a lipoprotein from Neisseria meningitidis) can be produced in high yields using Escherichia coli strain C43 (DE3). After testing a non-lipoimmunogen (E3, from dengue virus) fused with different lipid signal peptides from other lipoproteins...
Transcutaneous immunization is a novel strategy for immunization employing topical application of antigen and adjuvant to the skin surface and resulting in detectable antigen/adjuvant specific IgG in plasma and mucosal secretions. In this study we show that transcutaneous immunization with cholera toxin (CT) as an adjuvant can be used in several inbred mouse strains with varying H-2 major histocompatibility...
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