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lPossible mechanisms of Leukoagglutinin induced apoptosis in human cells in vitro

机译:白细胞凝集素体外诱导人细胞凋亡的可能机制

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Leukoagglutinin is one of the phytohemagglutinin isolectins isolated from Phaseolus vulgaris. In our recent study, we showed that this lectin is able to influence the growth of human cancer cells in vitro. In addition, using the acridine orange and ethidium bromide staining, we found that leukoagglutinin can induce apoptosis. In order to understand the molecular mechanisms of induction of apoptosis, we performed computational modeling with subsequent experimental verification of theoretical data in vitro. We developed computational models of leukoagglutinin interaction with pro-(FasR and TNFR) and anti-apoptotic (IGF-1 and EGFR) receptors, and confirmed that leukoagglutinin may specifically interact with these receptors. Furthermore, we proved that leukoagglutinin can induce apoptosis in cancer (HEp-2) and non-cancer (4BL) cells, and observed that PHA-L is able to induce apoptosis through the up-regulation of Bax protein and activation of the effector caspase-3 and initiator caspase-8. However, these proteins have no effect on the Bcl-2 expression level.
机译:白细胞凝集素是从菜豆中分离的植物血凝素异凝集素之一。在我们最近的研究中,我们证明了这种凝集素能够在体外影响人类癌细胞的生长。此外,使用the啶橙和溴化乙锭染色,我们发现白细胞凝集素可以诱导细胞凋亡。为了了解诱导细胞凋亡的分子机制,我们进行了计算建模,并随后进行了体外理论数据的实验验证。我们开发了白细胞凝集素与pro(FasR和TNFR)和抗凋亡(IGF-1和EGFR)受体相互作用的计算模型,并证实白细胞凝集素可能与这些受体特异性相互作用。此外,我们证明了白细胞凝集素可以诱导癌细胞(HEp-2)和非癌细胞(4BL)的凋亡,并观察到PHA-L能够通过Bax蛋白的上调和效应子胱天蛋白酶的活化来诱导凋亡。 -3和启动子caspase-8。但是,这些蛋白质对Bcl-2表达水平没有影响。

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