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Adenovirus (Ad) is thought to be one of the most promising platforms for a malaria vaccine targeted against its liver stages, because of its ability to induce a strong T-cell response against a transgene. However, a further improvement of this platform is needed in order to elicit another arm of the immunity, i.e. humoral response, against malaria.In order to augment immunogenicity and protective...
A number of studies have shown that CD8+ T cells mediate protective anti-malaria immunity in a mouse model. However, whether human CD8+ T cells play a role in protection against malaria remains unknown. We recently established human immune system (HIS) mice harboring functional human CD8+ T cells (HIS-CD8 mice) by transduction with HLA-A∗0201 and certain human cytokines using recombinant adeno-associated...
With the universal infant hepatitis B vaccination (HepB) program, China has made remarkable achievements to prevent and control hepatitis B. In order to further reduce hepatitis B virus (HBV) infection, the Chinese government is considering implementing a widespread adult HBV vaccination campaign. We performed an economic analysis of two different adult HepB vaccination strategies for 21–59-years-olds:...
The surface antigens SAG2C, SAG2D, and SAG2X, which expressed specifically on bradyzoite stage of Toxoplasma gondii, have been demonstrated to be important for persistence of cyst in the brain. In this study, DNA vaccines expressing SAG2C, SAG2D, and SAG2X of T. gondii were constructed and their protective efficacy were evaluated in BALB/c mice. Mice vaccinated with pVAX1-SAG2C (pSAG2C), pVAX1-2D...
This study assessed the antibody persistence, and the immunogenicity and safety of a booster dose of a DTaP–IPV//PRP∼T (Pentaxim ® , Sanofi Pasteur's AcXim family) combined vaccine and of standalone vaccines one year after primary vaccination in the People's Republic of China. Participants (N=719) previously primed with DTaP–IPV//PRP∼T at 2, 3, 4months (Group A, N=255), 3, 4, 5months (Group...
Numerous evidence demonstrate Type 1 diabetes (T1D) is due to a loss of immune tolerance to islet antigens, and CD8 + T cells play an important role in the development of T1D in NOD mice. The novel coinhibitory receptor BTLA may have a regulatory role in maintaining peripheral tolerance, however, its role in autoimmune diabetes is unknown. To explore whether the generation of tolerance aiming...
Edwardsiella tarda and Vibrio harveyi are Gram-negative bacterial pathogens that affect a wide range of cultured fish. In previous studies, we have reported an E. tarda live vaccine ATCC15947 and a V. harveyi subunit vaccine DegQ. On the basis of these studies, in the present study we developed a cross protective vaccine against both E. tarda and V. harveyi by constructing a recombinant ATCC15947,...
The duration of protection of hepatitis B vaccine remains incompletely understood. To assess the long-term protection provided by a primary vaccine series, the current study again recruited all subjects of a previous randomized placebo-controlled trial cohort 23 years after vaccination. Two hundred and sixty-one healthy children aged 5–9 years living in a highly HBV-endemic country were enrolled in...
The aim was to demonstrate the immunogenicity and safety of a DTaP-IPV//PRP-T combined vaccine (Pentaxim ® ) compared to individual vaccines in infants in the People's Republic of China. Infants (N=792) were randomly assigned to receive DTaP-IPV//PRP-T at 2, 3 and 4 months of age (Group A) or 3, 4 and 5 months of age (Group B), or DTaP (Wuhan Institute of Biological Products), PRP-T (Act-Hib...
Edwardsiella tarda is a severe aquaculture pathogen that can infect many fish species and cause a systematic disease called edwardsiellosis, which can lead to high mortality under certain conditions. Currently, most vaccine candidates against edwardsiellosis are based on pathogenic E. tarda strains, which can be a concern in some cases. In this study, the vaccine potential of a natural E. tarda isolate,...
Vibrio harveyi is an important aquaculture pathogen that can infect a number of fish species and marine invertebrates. A putative protease, Vhp1, was identified from a pathogenic V. harveyi strain isolated from diseased fish as a protein with secretion capacity. Vhp1 is 530 amino acids in length and shares high sequence identities with several extracellular serine proteases of the Vibrio species....
Edwardsiella tarda is an opportunistic pathogen that can infect humans, animal, and fish. Two E. tarda antigens, Eta6 and FliC, which are homologues to an ecotin precursor and the FliC flagellin, respectively, were identified by in vivo-induced antigen technology from a pathogenic E. tarda strain isolated from diseased fish. When used as a subunit vaccine, purified recombinant Eta6 was moderately...
The purpose of the present study was to evaluate the anti-vasculature effects and the anti-tumor effects of attenuated Salmonella typhimurium vaccine strain encoding murine vascular endothelial growth factor (VEGF) receptor-2 (flk1) in combination with plasmid DNA vector encoding the murine interferon-induced protein of 10kDa (IP-10 or CXCL10) gene. Mouse models of malignant melanoma (B16-F10) were...
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