کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2540637 | 1122601 | 2014 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Immune enhancement of Taishan Robinia pseudoacacia polysaccharide on recombinant Proteus mirabilis OmpA in chickens Immune enhancement of Taishan Robinia pseudoacacia polysaccharide on recombinant Proteus mirabilis OmpA in chickens](/preview/png/2540637.png)
• We firstly expressed Proteus mirabilis OmpA in cells of the Pichia pastoris.
• Evaluated the effects of TRPPS on chickens immunized with recombinant OmpA vaccine.
• Established that the optimal dose of TRPPS was 200 mg/mL for immune responses.
This study was conducted to evaluate the effects of Taishan Robinia pseudoacacia polysaccharide (TRPPS) on immune responses of chickens immunized with Proteus mirabilis outer membrane protein A (OmpA) recombinant protein vaccine. OmpA was expressed in Pichia pastoris and mixed with TRPPS. 360 chickens were randomly divided into six groups. Groups I to IV were treated with OmpA which contained TRPPS of three different dosages, Freund's adjuvant, respectively. Groups V and VI were treated with pure OmpA and physiological saline, respectively. The data showed that the antibody titers against OmpA, the concentration of IL-2, CD4 +, and CD8 +, T lymphocyte proliferation rate in Group II were significantly higher (P < 0.05) than those in the other groups, little difference in SIgA content was observed among groups I to VI. These results indicated that TRPPS strengthened humoral and cellular immune responses against recombinant OmpA vaccine. Moreover, 200 mg/mL TRPPS showed significance (P < 0.05) compared with Freund's adjuvant. Therefore, TRPPS can be developed into an adjuvant for recombinant subunit vaccine.
Journal: International Immunopharmacology - Volume 22, Issue 1, September 2014, Pages 236–241