Cobra venom factor (CVF), separated from the cobra venoms, is an acidic glucoproteins with anticomplementory activity The combination of CVF with factor B in the blood produces a stable C3 and C5 converterase resultin...Cobra venom factor (CVF), separated from the cobra venoms, is an acidic glucoproteins with anticomplementory activity The combination of CVF with factor B in the blood produces a stable C3 and C5 converterase resulting in complement depletion by activating complement continually. There are many studies on it, such as inflammation, autoimmune disease, xenotransplantation, anti-tumor, etc. CVF is also an important tool drug for the study of complement role in the pathophysiological development of diseases.展开更多
目的探索免疫鸡制备高效价抗眼镜蛇毒抗体的新方法。方法用中华眼镜蛇原毒作抗原免疫22周龄的莱航母鸡,水溶法粗提抗体,DEAE Sepharos FF柱纯化,切向流超滤膜脱盐及浓缩,免疫电泳及双向免疫扩散法进行鉴定及效价测定,采用BCATMProte in ...目的探索免疫鸡制备高效价抗眼镜蛇毒抗体的新方法。方法用中华眼镜蛇原毒作抗原免疫22周龄的莱航母鸡,水溶法粗提抗体,DEAE Sepharos FF柱纯化,切向流超滤膜脱盐及浓缩,免疫电泳及双向免疫扩散法进行鉴定及效价测定,采用BCATMProte in Assay K it测定蛋白含量。结果鸡卵黄经水溶法的粗提物与中华眼镜蛇毒即有较明显沉淀反应,其效价随着纯度的提高而增强。将马源性抗血清的蛋白质含量调至与浓缩的IgY相同(2mg/m l),经双向免疫扩散及免疫电泳鉴定,该抗体不但对中华眼镜蛇毒有特异性结合,与孟加拉眼镜蛇毒亦有较强的交叉免疫活性,其效价较马抗眼镜蛇毒血清高4倍以上。结论用中华眼镜蛇原毒制备的IgY抗体,其效价较马抗血清有显著提高,并与孟加拉眼镜蛇毒有高度交叉免疫。本实验为抗眼镜蛇IgY的应用及其它抗蛇毒IgY的制备奠定了基础。展开更多
文摘Cobra venom factor (CVF), separated from the cobra venoms, is an acidic glucoproteins with anticomplementory activity The combination of CVF with factor B in the blood produces a stable C3 and C5 converterase resulting in complement depletion by activating complement continually. There are many studies on it, such as inflammation, autoimmune disease, xenotransplantation, anti-tumor, etc. CVF is also an important tool drug for the study of complement role in the pathophysiological development of diseases.
文摘目的探索免疫鸡制备高效价抗眼镜蛇毒抗体的新方法。方法用中华眼镜蛇原毒作抗原免疫22周龄的莱航母鸡,水溶法粗提抗体,DEAE Sepharos FF柱纯化,切向流超滤膜脱盐及浓缩,免疫电泳及双向免疫扩散法进行鉴定及效价测定,采用BCATMProte in Assay K it测定蛋白含量。结果鸡卵黄经水溶法的粗提物与中华眼镜蛇毒即有较明显沉淀反应,其效价随着纯度的提高而增强。将马源性抗血清的蛋白质含量调至与浓缩的IgY相同(2mg/m l),经双向免疫扩散及免疫电泳鉴定,该抗体不但对中华眼镜蛇毒有特异性结合,与孟加拉眼镜蛇毒亦有较强的交叉免疫活性,其效价较马抗眼镜蛇毒血清高4倍以上。结论用中华眼镜蛇原毒制备的IgY抗体,其效价较马抗血清有显著提高,并与孟加拉眼镜蛇毒有高度交叉免疫。本实验为抗眼镜蛇IgY的应用及其它抗蛇毒IgY的制备奠定了基础。
