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家蝇蛹凝集素的纯化及对巨噬细胞免疫活性的影响
引用本文:周明慧,王春玲,赵旭荣,曹小红. 家蝇蛹凝集素的纯化及对巨噬细胞免疫活性的影响[J]. 天津轻工业学院学报, 2010, 0(3): 5-8
作者姓名:周明慧  王春玲  赵旭荣  曹小红
作者单位:食品营养与安全教育部重点实验室,天津科技大学食品工程与生物技术学院,天津300457
基金项目:国家自然科学基金资助项目(20676103);国家高技术研究计划(863计划)基金资助项目(2007AA10Z319)
摘    要:采用缓冲液浸提、亲和层析、超滤和离子交换4种方法,从家蝇蛹中分离纯化出一种D-半乳糖特异性结合的凝集素(MPL-1),该组分具有明显的凝血活性和免疫调节活性.聚丙烯酰胺凝胶电泳和高效液相色谱分析结果表明,MPL-1为单一成分的蛋白,其分子质量为80ku.中性红吞噬实验结果显示,此种凝集素能提高巨噬细胞的吞噬活性,其作用效果具有时间和浓度依赖性.扫描电镜(SEM)观察结果表明,MPL-1作用后的巨噬细胞呈现明显的活化状态,证明MPL-1对巨噬细胞具有明显的免疫调节作用.

关 键 词:家蝇蛹  凝集素  纯化  巨噬细胞  免疫调节

Purification and Macrophage Immunomodulatory Activity of Lectin from Musca domestica Pupae
ZHOU Ming-hui,WANG Chun-ling,ZHAO Xu-rong,CAO Xiao-hong. Purification and Macrophage Immunomodulatory Activity of Lectin from Musca domestica Pupae[J]. Journal of Tianjin University of Light Industry, 2010, 0(3): 5-8
Authors:ZHOU Ming-hui  WANG Chun-ling  ZHAO Xu-rong  CAO Xiao-hong
Affiliation:(Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science & Technology,Tianjin 300457,China)
Abstract:A D-galactose specific lectin was purified from Musca domestica pupae (MPL-1)by crude extract in buffer, affinity chromatography,ultra-filtration and ion exchange process, subsequently, lts macrophage immunomodulatory activity in vitro was studied. Detection of PAGE and HPLC show that MPL-1 is homogeneous with the molecular weight of 80 ku. Pinocytic activity of macrophage can be obvious enhanced by MPL-1 in a time and dose dependent manner,and the macrophages are shown to be activated by observation of the microstructures of cells scanning electron microscope (SEM).
Keywords:Musca domestica pupae  lectin  purification  immunomodulator  macrophage
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