十六种鸟类二级抗体的制备和辣根过氧化物酶标记
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中国医学科学院,北京协和医学院,医学实验动物研究所,卫生部人类疾病比较医学重点实验室,国家中医药管理局人类疾病动物模型三级实验室,北京 100021

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Preparation and HRP Labeling of Rabbit Polyclonal Antibodies against Sixteen Birds
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Key Laboratory of Human Disease Comparative Medicine,Ministry of Heath,Institute of Laboratory Animal Science,Chinese Academy of Medical Sciences & Peking Union Medical College,Human Disease Animal Models Level-3 Laboratory of State Administration of Traditional Chinese Medicine,,Beijing 100021,China

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    摘要:

    目的 制备兔抗 16 种鸟类的二级抗体,并进行辣根过氧化物酶标记,为鸟类血清学检测系统的建立提供工具。方法 采用水稀释法粗纯抗体后,再利用改良的饱和硫酸铵分级沉淀法,或亲和层析结合饱和硫酸铵沉淀法,或饱和硫酸铵沉淀法结合 SDS-PAGE 凝胶切胶纯化的方法进一步纯化鸟类的 IgY,利用纯化的 IgY 免疫大耳白兔制备抗血清,用免疫双扩散来检测抗血清的效价,并用 Protein A 亲和层析的方法来纯化兔抗鸟类的二级抗体,采用简易过碘酸钠法对纯化的兔抗鸟类的二级抗体进行辣根过氧化物酶标记,通 过 ELISA 方法测定标记抗体的效价,并利用 Western blots 考察标记抗体 的 特 异 性。结 果 纯 化 了 灰 雁、鸬 鹚、鸵 鸟、小鹈、鸽 子、鹅、孔 雀、鹌鹑、贵妃鸡、草鹭、夜鹭、赤嘴潜鸭、燕鸥、长脚鹬、虎皮鹦鹉、翘鼻麻鸭等 16 种鸟类的 IgY,免疫双扩散法测定兔抗这16 种鸟类的抗血清效价均达到 1∶ 32,并对纯化的兔抗灰雁 IgY、兔抗鸬鹚 IgY、兔抗鸵鸟 IgY、兔抗小鹈 IgY、兔抗鸽子 IgY、兔抗鹅 IgY、兔抗孔雀 IgY、兔 抗 鹌 鹑 IgY、兔 抗 贵 妃 鸡 IgY、兔 抗 草 鹭 IgY、兔 抗 夜 鹭 IgY、兔 抗 赤 嘴 潜 鸭IgY、兔抗燕鸥 IgY、兔抗长脚鹬 IgY、兔抗虎皮鹦鹉 IgY、兔抗翘鼻麻鸭 IgY 等 16 种兔抗鸟类 IgY 的二级抗体进行了辣根过氧化物酶标记,ELISA 测定标记抗体的效价达到 1∶ 800 ~ 80000 左右,Western blots 显示标记抗体具有很好的特异性。结论 成功制备了辣根过氧化物酶标记的兔抗 16 种鸟类的二级抗体,为鸟类血清学检测体系的建立提供了工具。

    Abstract:

    Objective To prepare the rabbit polyclonal antibodies against sixteen stains of birds,and to label the secondary antibodies with horseradish peroxidase for developing the serological test system of birds. Methods IgYs of birds were purified by water diluted,combining precipitation with ammonium sulfate,or affinity chromatography and precipitation with ammonium sulfate,or precipitation with ammonium sulfate and cutting the SDS-PAGE gel slices that contain the IgY bands. Rabbit anti-sera were prepared by repeatedly immunized rabbits with purified IgYs. The antibodies against bird IgY in rabbit sera were detected by agarose double immunodiffusion and purified using Protein A affinity chromatography. The products were labeled using HRP by periodate oxidation method. And the activities of the labeled rabbit polyclonal antibodies against sixteen strains of birds were detected by ELISA. Western blots were performed to investigate the specificity of IgG-HRP against the IgY of birds. Results The IgYs from the strains of birds were purified,including greylag goose,great cormorant,ostrich,little grebe,pigeon,rich bird,goose,peacock,quail,ladyhood-chicken,heron, night-heron,red-crested pochard,tern,black-winged stilt,parrots,common shelduck. The titers of sixteen rabbit antisera were up to 1 ∶ 32 examined by agarose double immunodiffusion. Sixteen kinds of purified rabbit anti-bird secondary antibodies were labeled with HRP and their activities were up to 1∶ 800 - 80000 examined by ELISA. The specific activities of the sixteen rabbit anti-bird IgGs-HRP were indicated with western blot. Conclusions Rabbit polyclonal antibodiesagainst sixteen birds labeled with HRP were prepared successfully; It was an useful tool for developing the serological test system for birds.

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林树柱,杨 帆,刘先菊,张连峰.十六种鸟类二级抗体的制备和辣根过氧化物酶标记[J].中国比较医学杂志,2011,21(6):1~5.

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  • 收稿日期:2010-11-10
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  • 在线发布日期: 2025-11-25
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