首页> 外文期刊>Journal of Huazhong University of Science and Technology >Experimental Study on the Inhibitory Effects of Verapamil on the Proliferation of Meningiomas Cells
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Experimental Study on the Inhibitory Effects of Verapamil on the Proliferation of Meningiomas Cells

机译:维拉帕米对脑膜瘤细胞增殖抑制作用的实验研究

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In order to investigate the effects of verapamil on the proliferation of meningiomas cells in vitro and in vivo, the cultured meningiomas cells were cultured with verapamil at different concentrations for 24 h and the inhibitory effects of verapamil on cell proliferation were observed by MTT method. The meningiomas model was established by implanting the newly removed tumor fragments into the nude mice subcutaneously. The nude mice with tumors were divided into two groups: vera-pamil-treated group and control group. Tumor volumes were measured and after 12 weeks the tumors were taken out and examined histologically. The expression of proliferating cell nuclear antigen (PCNA) in the tumors was detected by using immunohistochemistry. It was found that verapamil could inhibit the growth of cultured meningiomas cells in a concentration-dependant manner. The inhibitory effect could be observed in the concentration of 1 μmol/L verapamil and the most obvious effects appeared in the concentration of 100 μmol/L. Tumor volume in the verapamiltreated group was obviously smaller than that in the control group (211.40±5.50 vs 163.94±3.62, P < 0.01) and the expression of PCNA was also lower (1.52±0.24 vs 2.86±0.53, P < 0.05). Tumor inhibition rate was about 22.45%. It was suggested that verapamil could inhibit the proliferation and growth of meningiomas cells in vitro and in vivo.
机译:为了研究维拉帕米对体内外脑膜瘤细胞增殖的影响,将培养的脑膜瘤细胞与维拉帕米以不同浓度培养24 h,并采用MTT法观察维拉帕米对细胞增殖的抑制作用。通过将新去除的肿瘤片段皮下植入裸鼠中来建立脑膜瘤模型。将具有肿瘤的裸鼠分为两组:维拉帕米尔治疗组和对照组。测量肿瘤体积,并在12周后取出肿瘤并进行组织学检查。用免疫组织化学方法检测肿瘤中增殖细胞核抗原(PCNA)的表达。发现维拉帕米可以以浓度依赖的方式抑制培养的脑膜瘤细胞的生长。在1μmol/ L的维拉帕米浓度下可观察到抑制作用,在100μmol/ L的浓度下表现出最明显的抑制作用。维拉帕米治疗组的肿瘤体积明显小于对照组(211.40±5.50 vs 163.94±3.62,P <0.01),PCNA的表达也较低(1.52±0.24 vs 2.86±0.53,P <0.05)。肿瘤抑制率约为22.45%。提示维拉帕米在体外和体内均可抑制脑膜瘤细胞的增殖和生长。

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