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3种新型蛋白酶体抑制剂对斑马鱼心脏毒性的评价

胡丙雪, 董雪, 范宏伟, 朱永强, 张茵, 张朝

胡丙雪, 董雪, 范宏伟, 朱永强, 张茵, 张朝. 3种新型蛋白酶体抑制剂对斑马鱼心脏毒性的评价[J]. 中国药科大学学报, 2019, 50(4): 452-458. DOI: 10.11665/j.issn.1000-5048.20190410
引用本文: 胡丙雪, 董雪, 范宏伟, 朱永强, 张茵, 张朝. 3种新型蛋白酶体抑制剂对斑马鱼心脏毒性的评价[J]. 中国药科大学学报, 2019, 50(4): 452-458. DOI: 10.11665/j.issn.1000-5048.20190410
HU Bingxue, DONG Xue, FAN Hongwei, ZHU Yongqiang, ZHANG Yin, ZHANG Zhao. Cardiotoxicity evaluation of three novel proteasome inhibitors in zebrafish[J]. Journal of China Pharmaceutical University, 2019, 50(4): 452-458. DOI: 10.11665/j.issn.1000-5048.20190410
Citation: HU Bingxue, DONG Xue, FAN Hongwei, ZHU Yongqiang, ZHANG Yin, ZHANG Zhao. Cardiotoxicity evaluation of three novel proteasome inhibitors in zebrafish[J]. Journal of China Pharmaceutical University, 2019, 50(4): 452-458. DOI: 10.11665/j.issn.1000-5048.20190410

3种新型蛋白酶体抑制剂对斑马鱼心脏毒性的评价

基金项目: 国家自然科学基金资助项目(No.31171302);江苏省教育厅自然科学研究计划重大项目资助项目(No.16KJA18000);江苏省优势学科资助项目(No.1164320H106)

Cardiotoxicity evaluation of three novel proteasome inhibitors in zebrafish

  • 摘要: 为了观察3种新型蛋白酶体抑制剂对斑马鱼的心脏毒性并初步探讨其机制,将斑马鱼胚胎分别暴露于一系列浓度的化合物NNU395、NNU458和NNU459。于显微镜下观察并拍摄斑马鱼的心脏形态,统计死亡率及心率,并检测斑马鱼心脏发育相关基因的表达情况。结果显示,NNU395、NNU458和NNU459呈浓度依赖地增加了斑马鱼的死亡率,对斑马鱼胚胎的半数致死浓度分别为(179.7±12.2),(27.5±1.3)和(24.4±2.6)μmol/L,且较之各自改构前体,3种化合物对斑马鱼的毒性更低。120~200 μmol/L NNU395及30 μmol/L的NNU458或NNU459处理后的斑马鱼出现明显的心包水肿和心脏畸形。120~200 μmol/L的NNU395及0.1~30 μmol/L的NNU458或10~30 μmol/L的NNU459均显著降低斑马鱼的心率。3种化合物对斑马鱼心脏发育相关基因的表达都没有显著影响。本研究提示低浓度的NNU395、NNU458和NNU459对斑马鱼心脏无明显毒性,高浓度的3种化合物对斑马鱼可产生心血管毒性。
    Abstract: To evaluate the cardiotoxicity of three novel proteasome inhibitors(NNU395, NNU458 and NNU459)in zebrafish, normal developmental zebrafish embryos at 6 hours post fertilization(hpf)were treated with different doses of NNU395 and NNU458 and NNU459 until 72 hpf, the zebrafish mortality was counted. Morphologic changes of the cardiovascular system were observed under a stereomicroscope, and the number of heart beats within 1 min was determined. The expression of cardiac development-related genes in zebrafish was detected by RT-qPCR(Quantitative Real-Time PCR). Results showed that NNU395, NNU458 and NNU459 increased the mortality of zebrafish in a concentration-dependent manner and the values of LC50(50% lethal concentration)were(179. 7±12. 2), (27. 5±1. 3)and(24. 4±2. 6)μmol/L, respectively. Moreover, the toxicity of our three compounds in zebrafish are less when compared with their modified precursors. Upon administration of NNU395 at the concentrations of 120- 200 μmol/L, and NNU458 or NNU459 at the concentration of 30 μmol/L, the zebrafish showed obvious pericardial edema cardiac malformation. 120- 200 μmol/L NNU395 and 0. 1- 30 μmol/L NNU458 or 10- 30 μmol/L NNU459 significantly reduced the heart rate of zebrafish. All of three compounds at the tested concentration had no significant effects on the expression of the heart development-related genes in zebrafish. Our results suggested that low concentrations of NNU395, NNU458 and NNU459 have no obvious toxicity on cardiac development of zebrafish. While, higher concentrations of them showed cardiovascular toxicity on zebrafish.
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  • 刊出日期:  2019-08-24

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