粉防己碱对神经母细胞瘤细胞增殖和迁移、侵袭能力的影响及其机制研究
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篇名: | 粉防己碱对神经母细胞瘤细胞增殖和迁移、侵袭能力的影响及其机制研究 |
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摘要: | 目的:探讨粉防己碱(TET)对神经母细胞瘤细胞增殖和迁移、侵袭能力的影响及其作用机制。方法:以人神经母细胞瘤细胞系IMR-32细胞、SH-SY5Y细胞为研究对象,采用四甲基偶氮唑蓝(MTT)方法检测浓度分别为0(空白对照)、2.5、5、10、15、20 μmol/L的TET对细胞增殖的影响;采用Transwell小室迁移实验和侵袭实验,考察正常对照组(TET浓度为0 μmol/L)和TET组(10 μmol/L,IMR-32细胞;15 μmol/L,SH-SY5Y细胞)的细胞跨膜情况;采用Western blotting法检测按上述浓度TET处理后的IMR-32细胞和SH-SY5Y细胞中金属基质蛋白酶2(MMP-2)、MMP-9、β-catenin、糖原合成激酶3β(GSK3β)、磷酸化GSK3β(p-GSK3β)的蛋白表达水平。结果:5、10、15、20 μmol/L的TET可显著降低IMR-32细胞和SH-SY5Y细胞的存活率(P<0.05或P<0.01),其半数抑制浓度分别为10.148、14.461 μmol/L。细胞迁移实验和侵袭实验结果显示,与正常对照组比较,TET组跨膜细胞数均显著减少(P<0.01);Western blotting法检测结果显示,与正常对照组比较,TET组细胞中MMP-2、MMP-9、β-catenin、p-GSK3β蛋白表达均显著降低(P<0.01)。结论:TET对神经母细胞瘤细胞的增殖和迁移、侵袭能力具有明显的抑制作用,其机制与下调细胞中MMP-2、MMP-9蛋白表达及抑制Wnt/β-catenin信号通路有关。 |
ABSTRACT: | OBJECTIVE: To investigate the effects of tetrandrine (TET) on the proliferation and migration, invasion ability of neuroblastoma cells and its mechanism. METHODS: Human neuroblastoma cell lines IMR-32 and SH-SY5Y were chosen as objects. MTT assay was used to detect the effects of 0 (blank control), 2.5, 5, 10, 15, 20 μmol/L TET on cell proliferation. The transmembrane number of normal control group (TET concentration of 0 μmol/L) and TET group (10 μmol/L for IMR-32 cells, 15 μmol/L for SH-SY5Y cells) were investigated by Transwell cell migration and invasion experiments. The protein levels of MMP-2, MMP-9, β-catenin, GSK3β and p-GSK3β in IMR-32 cells and SH-SY5Y cells were tested by Western blotting assay after treated with TET of above concentrations. RESULTS: TET with 5, 10, 15, 20 μmol/L can reduce the survival rate of IMR-32 cells and SH-SY5Y cells significantly (P<0.05 or P<0.01). IC50 of which to IMR-32 cells and SH-SY5Y cells were 10.148 and 14.461 μmol/L, respectively. Results of migration and invasion experiments showed that compared with normal control group, the number of transmembrane cells was decreased significantly in TET group (P<0.01). Results of Western blotting assay showed that compared with normal control group, the protein expression levels of MMP-2,MMP-9,β-catenin and p-GSK3β were decreased significantly in TET group (P<0.01). CONCLUSIONS: TET shows significant inhibitory effects on the proliferation, migration and invasion ability of neuroblastoma cells, the mechanism of which may be associated with down-regulating the protein expression of MMP-2 and MMP-9 and inhibiting Wnt/β-catenin signaling pathway. |
期刊: | 2019年第30卷第2期 |
作者: | 邓香 |
AUTHORS: | DENG Xiang |
关键字: | 粉防己碱;神经母细胞瘤;IMR-32细胞;SH-SY5Y细胞;增殖;迁移;侵袭 |
KEYWORDS: | Tetrandrine; Neuroblastoma; IMR-32 cell; SH-SY5Y cell; Proliferation; Migration; Invasion |
阅读数: | 221 次 |
本月下载数: | 4 次 |
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