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重组人组织激肽释放酶结合蛋白抗氧化活性及抗凝活性分析
Authors
周玥莹
方美娟
王立强
龙莎
Publication date
20 September 2018
Publisher
Abstract
探究Kallistatin蛋白在体外3种细胞模型中的抗氧化活性及其体外抗凝、溶栓活性.首先,在体外构建HBZY-1,HaCaT,HTR8-s/Vneo细胞的H2O2,Fe-HQ氧化应激模型,并将Kallistatin蛋白应用于构建的氧化应激模型中.然后,采用多浓度梯度法筛选最佳氧化剂浓度,利用细胞活性实验检测以上3种细胞的活性,并进行体外抗凝、溶栓实验考察.结果表明:在H2O2模型中,当Kallistatin蛋白浓度为0.6μmol·L-1时,3种细胞活力与对照组(LD-Hanks缓冲液)相近,低剂量蛋白组(0.06μmol·L-1)的细胞活力明显低于高剂量蛋白组细胞;在Fe-HQ模型中,不同细胞中Kallistatin蛋白剂量的作用不同,Kallistatin蛋白具有体外抗氧化活性,不同应激条件下不同细胞对蛋白剂量的依赖性不同;体外抗凝、溶栓实验表明此蛋白具有相关活性.国家重点研发计划资助项目(2016YFE0101700);;国家自然科学基金资助项目(2015J01342
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Last time updated on 10/06/2020