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Induction of protective immunity in rhesus monkey by inoculation with recombinant fusion protein of cholera toxin B subunit-multivalent epitopes of Plasmodium falciparum / 生物工程学报
Chinese Journal of Biotechnology ; (12): 516-519, 2004.
Article in Chinese | WPRIM | ID: wpr-270095
ABSTRACT
Rhesus monkeys (5 in each group) were inoculated with recombinant fusion protein of cholera toxin B subunit and multi-valent epitopes of Plasmodium falciparum intranasal or intramuscular (i.m.). Immune-responses and protective effect were evaluated. The antibody titer (Geometry mean) against CTB reached 1512 (intranasal) and 110000 (i.m.) 14 day after 3rd immunization, and antibodies against P. falciparum were also elucidated, the titers in i.m. group were also significantly higher than that in intranasal group. The monkeys were challenged with 1.25 x 10(8) sporozoites of P. cynomolgi, Patent infection was observed in all 5 monkeys in control group inoculated with PBS in 10 - 14 days after challenge. Patent infection was also observed in 5 animals inoculated via intranasal and 2 animals in intramuscular group 19th days after challenge, But the infection last only 4 days in 3 animals in intranasal group and 2 animals in intramuscular group. The results demonstrated that the vaccine candidate could induce protective immune-responses in rhesus monkey against the challenge of P. cynomolgi.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Parasitology / Plasmodium falciparum / Blood / Recombinant Fusion Proteins / Antibodies, Protozoan / Vaccines, Synthetic / Cholera Toxin / Plasmodium cynomolgi / Malaria Vaccines / Allergy and Immunology Limits: Animals Language: Chinese Journal: Chinese Journal of Biotechnology Year: 2004 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Parasitology / Plasmodium falciparum / Blood / Recombinant Fusion Proteins / Antibodies, Protozoan / Vaccines, Synthetic / Cholera Toxin / Plasmodium cynomolgi / Malaria Vaccines / Allergy and Immunology Limits: Animals Language: Chinese Journal: Chinese Journal of Biotechnology Year: 2004 Type: Article