Abstract:
:An experiment was conducted to study the adjuvant effect of ginsomes on the recombinant profilin in coccidian-infected breeding birds. Three-day-old chickens were vaccinated with Eimeria tenella recombinant profilin antigen (10, 50, and 100 μg per chicken) with or without 50 μg ginsomes per chicken. The boost vaccination was carried out 14 days later. Two weeks after the booster, the chickens were challenged with 1.5 × 10(4) homologous sporulated oocysts. The specific antibody response, lymphocyte proliferation, and IL-1 release from lymphocyte were measured at 1-42 days after boost vaccination. Seven days post-challenge, the rate of survival, body weight gains (BWG) were examined then all chickens were sacrificed and lesion scores and oocysts per gram were monitored to evaluate the protective effects of the vaccination after challenge. Compared with the group of vaccinating with profilin only, groups of 50 and 100 μg antigen plus ginsomes significantly enhanced lymphocyte proliferation and IL-1 secretion. The profilin specific antibody level in the four vaccinated groups was significantly higher than in the control group and in groups vaccinated with profilin containing ginsomes than profilin only. In the groups vaccinated with profilin plus ginsomes, the BWG was significantly higher than that of group of profilin only, but there was no significant difference between profilin plus adjuvant ginsomes, diclazuril medicated and uninfected-unmedicated-unvaccinated control groups. The lesion scores in groups immunized with profilin plus ginsomes was significantly lower than that both of groups unimmunized-challenged-unmedicated control and group vaccinated with profilin only. Oocyst excretion in groups vaccinated with 50 or 100 μg profilin plus ginsomes was lower than that of groups vaccinated with profilin only. These results demonstrate that the adjuvant ginsomes can promote subunit vaccine to induce a strong immune response and protective effects.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Zhang DF,Xu H,Sun BB,Li JQ,Zhou QJ,Zhang HL,Du AFdoi
10.1007/s00436-011-2784-7subject
Has Abstractpub_date
2012-06-01 00:00:00pages
2445-53issue
6eissn
0932-0113issn
1432-1955journal_volume
110pub_type
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