کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5833173 | 1122618 | 2013 | 6 صفحه PDF | دانلود رایگان |
- We expressed Bordetella avium ompA in E.coli BL21 at high levels and purified it through His-tag.
- We prepared Bordetella avium ompA recombinant vaccine and mixed it with Freund's adjuvant and TPPPS respectively.
- TPPPS (400mg/ml) performed better than Freund's adjuvant in improving humoral and cellular responses against ompA.
- TPPPS could be developed into a novel adjuvant for recombinant protein vaccine.
To study the effects of Taishan Pinus massoniana pollen polysaccharides (TPPPS) on Bordetella avium outer membrane protein A (ompA) recombinant protein vaccine, ompA was expressed, confirmed by Western blotting and mixed with TPPPS. Female BALB/c mice were randomly divided into six groups (I-VI). Groups I, II, and III were treated with TPPPS-ompA at doses of 200, 400, and 800Â mg/ml, respectively. Groups IV, V, and VI were treated with Freund's adjuvant-ompA, pure ompA, and physiological saline, respectively. On days 3, 7, 14, 21, 28, 35, 42, and 49 after the first vaccination, antibody titers, interleukin-2 (IL-2) levels, peripheral blood CD4Â + and CD8Â + levels, and T lymphocyte proliferation rates in peripheral blood, as well as secreting-type immunoglobulin A (SIgA) levels in the duodenum, were measured. The antibody titers against ompA, IL-2, T lymphocyte proliferation rate, CD4Â +, and CD8Â + in Group II were significantly (PÂ <Â 0.05) higher than those in other groups. However, little difference in SIgA content was observed among Groups I, II, and IV. These results indicated that TPPPS strengthened humoral and cellular immune response against recombinant ompA vaccine and 400Â mg/ml TPPPS showed significance (PÂ <Â 0.05) compared with Freund's adjuvant. Therefore, TPPPS can be developed into an adjuvant for recombinant protein vaccines or plant-derived medicine for animal husbandry.
Journal: International Immunopharmacology - Volume 17, Issue 3, November 2013, Pages 793-798