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Numerous studies have demonstrated that oligonucleotides containing CpG motifs (CpG ODN) are efficient immunoadjuvants to various antigens administered by parenteral routes to mice. Recently, it has been found that CpG ODNs also is a promising mucosal adjuvant in mice. To date, there have been no studies to screen the optimal CpG sequence and modified ODN backbone to piglets in vivo, when delivered...
This study compared: (1) Freund's complete adjuvant and CpG oligodeoxynucleotide (ODN) 2006 in water-in-oil emulsion as adjuvants; and (2) increasing doses of a recombinant ovalbumin-LHRH (ova-LHRH) fusion protein as an antigen for a contraceptive vaccine. Treatment groups (n=8 heifers/group) were: one untreated control group; five groups receiving CpG ODN with different doses of ova-LHRH (1.5; 2...
To develop a CpG containing oligodeoxynucleotide (CpG ODN)-enhanced rabies vaccine for stimulating an earlier production of rabies virus neutralizing antibody (RVNAb) with high titers, we designed a CpG ODN (BW006) and evaluated its adjuvant activities in enhancing the immune response to rabies vaccine with or without aluminum in mice. It was found that BW006 could facilitate the rabies vaccine to...
An emerging paradigm in vaccinology is that multiple adjuvant combinations may be more effective than individual adjuvants in enhancing immune responses to vaccine antigens. We investigated whether the polyphosphazenes used in combination with CpG oligodeoxynucleotides (ODN) were potent adjuvant formulations. BALB/c mice were immunized subcutaneously with Hepatitis B surface antigen (HBsAg) alone,...
The present study evaluated the immunogenicity of new malaria vaccine formulations based on the 19kDa C-terminal fragment of Plasmodium vivax Merozoite Surface Protein-1 (MSP1 19 ) and the Salmonella enterica serovar Typhimurium flagellin (FliC), a Toll-like receptor 5 (TLR5) agonist. FliC was used as an adjuvant either admixed or genetically linked to the P. vivax MSP1 19 and administered...
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