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Cytotoxicity Effect of Algal Polysaccharides on HL60 Cells

机译:海藻多糖对HL60细胞的细胞毒性作用

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The present study shows the cytotoxic effect of three different classes of algal polysaccharides on HL60 cells.Three galactofucans,fucoidan,and glucan were the polysaccharides utilized in this analysis.The parameters used for evaluating cell viability were [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide](MTT)reduction,protein content,and phosphatase activity.We demonstrated stimulation of phosphatase activity,MTT reduction,and protein content in relation to three types of galactofucans(1,2,and 3)with different molecular weights(1600,1200,and 360 kD).However,when HL60 cells were treated with galactofucan type 3,the total protein remained unchanged.Under the same experimental conditions,an expressed increase in the phosphatase activity was detected when galactofucan 3 was utilized.In relation to the mitochondrial function,the stimulation was higher in cells treated with galactofucan type 1.Fucoidan did not have a significant effect on MTT reduction,but protein content was decreased(IC_(50)around 30 mu g/ml).Glucan also activated all the parameters that were analyzed,and this effect was more expressed in the phosphatase activity and in the protein content.This study provides new insights into the cytotoxic action of polysaccharides on HL60 cells and suggests for the first time the possible involvement of phosphatases in this process.
机译:本研究显示了三种不同类型的藻类多糖对HL60细胞的细胞毒性作用。本分析中使用了三种半乳糖聚糖,岩藻依聚糖和葡聚糖。用于评估细胞生存力的参数为[3-(4,5-二甲基噻唑) (-2-基)-2,5-二苯基四唑溴化物](MTT)的还原,蛋白质含量和磷酸酶活性。我们证明了与三种类型的半乳糖聚糖有关的磷酸酶活性,MTT还原和蛋白质含量的刺激(1,2,和3)具有不同的分子量(1600、1200和360 kD)。但是,当用3型半乳聚糖处理HL60细胞时,总蛋白质保持不变。在相同的实验条件下,检测到磷酸酶活性明显增加当使用半乳聚糖3时。与线粒体功能相关,用半乳聚糖1型处理的细胞中的刺激作用更高。岩藻依聚糖对MTT的降低没有显着影响,但蛋白质含量却很高。 (IC_(50)大约增加了30μg / ml)。葡聚糖还激活了所分析的所有参数,这种作用更多地表现在磷酸酶活性和蛋白质含量上。这项研究为了解其的细胞毒性作用提供了新的见解。 HL60细胞上的多糖,并首次提示磷酸酶可能参与该过程。

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