芍药苷人工抗原的合成与鉴定

利用高碘酸钠法合成芍药苷免疫抗原PF-BSA和包被抗原PF-OVA,并通过紫外光谱检测芍药苷成功与BSA/OVA偶联。小鼠经PF-BSA免疫后,体内可产生抗芍药苷抗体,酶联免疫分析法分析证明其免疫小鼠所得抗体效价达 1：12 800,半数抑制浓度为0.791 mg·L^-1,且与黄芩苷等9种中药小分子交叉反应极低。芍药苷人工抗原的合成及抗体的获得为建立ELISA和研制免疫检测试剂盒奠定了基础。

Synthesis and identification of artificial antigens of paneoniflorin

Oxidation method with sodium iodide was used to synthesize immunogenic antigen (PF-BSA) and coating antigen (PF-OVA) of paeoniflorin. UV spectroscopy showed that paeoniflorin was successfully conjugated with BSA and OVA. After immunized by PF-BSA, the mice can produce anti-paeoniflorin antibodies specifically. The ELISA test results showed the high titer (1:12 800) and specificity (IC₅₀=0.791 mg·L^-1)of the antiserum from mice injected with PF-BSA. Also, the antiserum showed low cross activities against nine traditional Chinese medicine (TCM) of small molecules. These artificial antigens were successfully synthesized and the anti-paeoniflorin antibody well prepared, which provides the experimental basis for the further study of ELISA and its kit.