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Effects of anticancer drugs on glia-glioma brain tumor model characterized by acoustic impedance microscopy

机译:声阻抗显微镜表征抗癌药对神经胶质瘤脑肿瘤模型的影响

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摘要

An ultrasonic microscope is a useful tool for observing living tissue without chemical fixation or histochemical processing. Two-dimensional (2D) acoustic impedance microscopy developed in our previous study for living cell observation was employed to visualize intracellular changes. We proposed a brain tumor model by cocultivating rat glial cells and C6 gliomas to quantitatively analyze the effects of two types of anticancer drugs, cytochalasin B (CyB) and temozolomide (TMZ), when they were applied. We reported that CyB treatment (25 mu g/ml, T = 90 min) significantly reduced the acoustic impedance of gliomas and has little effect on glial cells. Meanwhile, TMZ treatment (2mg/ml, T = 90 min) impacted both cells equally, in which both cells' acoustic impedances were decreased. As CyB targets the actin filament polymerization of the cells, we have concluded that the decrease in acoustic impedance was in fact due to actin filament depolymerization and the data can be quantitatively assessed for future studies in novel drug development. (C) 2017 The Japan Society of Applied Physics
机译:超声显微镜是无需化学固定或组织化学处理即可观察活组织的有用工具。在我们先前的研究中开发的用于活细胞观察的二维(2D)声阻抗显微镜用于可视化细胞内的变化。我们通过共培养大鼠神经胶质细胞和C6胶质瘤提出了一种脑肿瘤模型,以定量分析两种抗癌药cytochalasin B(CyB)和替莫唑胺(TMZ)的作用。我们报道CyB处理(25μg / ml,T = 90分钟)显着降低了神经胶质瘤的声阻抗,对神经胶质细胞几乎没有影响。同时,TMZ处理(2mg / ml,T = 90分钟)对两个细胞的影响均相等,两个细胞的声阻抗均降低。由于CyB靶向细胞的肌动蛋白丝聚合,因此我们得出的结论是,声阻抗的降低实际上是由于肌动蛋白丝解聚而引起的,可以对数据进行定量评估,以用于新药开发中的进一步研究。 (C)2017日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2017年第7s1期|07JF15.1-07JF15.5|共5页
  • 作者单位

    Toyohashi Univ Technol, Dept Environm & Life Sci, Toyohashi, Aichi 4418580, Japan;

    Toyohashi Univ Technol, Dept Elect & Elect Informat Engn, Toyohashi, Aichi 4418580, Japan;

    Toyohashi Univ Technol, Dept Environm & Life Sci, Toyohashi, Aichi 4418580, Japan;

    Toyohashi Univ Technol, Dept Elect & Elect Informat Engn, Toyohashi, Aichi 4418580, Japan;

    Toyohashi Univ Technol, Dept Elect & Elect Informat Engn, Toyohashi, Aichi 4418580, Japan;

    Honda Elect Co Ltd, Toyohashi, Aichi 4413147, Japan;

    Toyohashi Univ Technol, Dept Environm & Life Sci, Toyohashi, Aichi 4418580, Japan;

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