中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (27): 4265-4272.doi: 10.12307/2024.560

• 组织构建相关生物安全性Biosecurity in tissue construction •    下一篇

抗肿瘤药物开发中体外心脏的安全性风险评估

郑双佳,赵  婷,任翠霞,王保强,陈兰兰,林沫旭,李英骥,张  旭   

  1. 北京爱思益普生物科技股份有限公司神经心脏中心,北京市  100000
  • 收稿日期:2023-09-12 接受日期:2023-11-08 出版日期:2024-09-28 发布日期:2024-01-26
  • 通讯作者: 张旭,博士,北京爱思益普生物科技股份有限公司神经心脏中心,北京市 100000
  • 作者简介:郑双佳,女,1987年生,河北省廊坊市人,汉族,2020年内蒙古民族大学毕业,硕士,主要从事体外心脏安评研究。
  • 基金资助:
    北京市科委科技计划资助项目(Z211100002521003),项目负责人:李英骥

Safety risk assessment of in vitro heart in antitumor drug development

Zheng Shuangjia, Zhao Ting, Ren Cuixia, Wang Baoqiang, Chen Lanlan, Lin Moxu, Li Yingji, Zhang Xu   

  1. Neurocardiology Center, Ice-Biosci, Beijing 100000, China
  • Received:2023-09-12 Accepted:2023-11-08 Online:2024-09-28 Published:2024-01-26
  • Contact: Zhang Xu, MD, Neurocardiology Center, Ice-Biosci, Beijing 100000, China
  • About author:Zheng Shuangjia, Master, Neurocardiology Center, Ice-Biosci, Beijing 100000, China
  • Supported by:
    Beijing Municipal Science and Technology Commission Science and Technology Program, No. Z211100002521003 (to LYJ)

摘要:


文题释义:

酪氨酸激酶抑制剂:是一种药物或化合物,用于抑制酪氨酸激酶的活性。酪氨酸激酶是一种酶,参与调节细胞的生长、分化和代谢等生物学过程。通过抑制酪氨酸激酶的活性,酪氨酸激酶抑制剂可以影响细胞信号传导途径,从而对癌症、炎症和其他疾病具有治疗作用。
体外心脏灌流实验:用于研究心脏的功能和代谢。在此实验中,动物的心脏被取出,然后通过一种特殊的装置(体外心脏灌流装置)加以灌流,保持心脏正常的血液供应和供氧。


背景:酪氨酸激酶抑制剂以及其他种类的小分子癌类药物会导致严重的心脏毒性。

目的:通过观察抗肿瘤药物在兔体外心脏心电图、心肌动作电位及相关离子通道和心肌细胞毒性的作用,对心脏安全再评价。
方法:将兔进行体外心脏灌流,采用舒尼替尼(Sunitinib,0.3,3,10 μmol/L),克唑替尼(Crizotinib,0.3,1,3 μmol/L),多柔比星(Doxorubicin,1,30 μmol/L)顺序灌流120 min,并设空白对照组进行对比,记录心电图和左心室内压。采用手动膜片钳检测3种药物对人源诱导多能干细胞分化的心肌细胞(hiPSC-CMs)动作电位及相关离子通道hERG,Nav1.5和Cav1.2通道电流的影响,采用CellTiter-Glo荧光细胞活力法检测hiPSC-CMs中ATP的水平。

结果与结论:①体外心脏灌流实验结果显示:与空白对照组相比,Sunitinib和Crizotinib在≥3 μmol/L浓度灌流下可减慢兔心率(P < 0.01),延长QT/QTc间期(P < 0.01),左心室内压有不同程度的降低。②手动膜片钳实验显示,与空白对照组相比,Sunitinib和Crizotinib在3 μmol/L浓度灌流时可明显延长hiPSC-CMs动作电位时程(P < 0.01),抑制hERG,Nav1.5和Cav1.2离子通道电流;并结合供试品分析,标识浓度与回收液测定浓度有不同程度的差异。③细胞活力检测结果显示,与空白对照组相比,Sunitinib(IC50=4.64 μmol/L),Doxorubicin (IC50=4.21 μmol/L)和Crizotinib(IC50=2.87 μmol/L)处理后hiPSC-CMs细胞内ATP水平明显降低,即细胞活力显著降低(P < 0.01)。④上述结果证实,实验成功建立了抗肿瘤药物的早期心脏安全性评价方法,为后续抗肿瘤药物的开发提供良好的支持和帮助。

https://orcid.org/0009-0007-5921-4758(郑双佳);https://orcid.org/0000-0003-4199-2029(张旭)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 舒尼替尼, 克唑替尼, 多柔比星, 体外心脏灌流, 电生理膜片钳, 心脏安全评价

Abstract: BACKGROUND: Tyrosine kinase inhibitors, as well as other types of small-molecule cancer drugs, can cause severe cardiotoxicity.
OBJECTIVE: To perform a heart safety re-evaluation by observing the effects of antitumor drugs on isolated heart electrocardiograph, cardiac action potential and associated ion channels and cytotoxicity.
METHODS: Extracorporeal cardiac perfusion was given to the isolated rabbit heart using Langendorff perfusion: Sunitinib (0.3, 3, 10 μmol/L), Crizotinib (0.3, 1, 3 μmol/L), and Doxorubicin (1, 30 μmol/L) were perfused sequentially for 120 minutes to record electrocardiograph and left ventricular pressure. A blank control group was set for comparison. Manual patch clamp was used to record the effects of Crizotinib, Sunitinib, Doxorubicin on hERG, Cav1.2, Nav1.5 channel currents and action potential in human induced pluripotent stem cell derived cardiomyocytes. Adenosine triphosphate level in human induced pluripotent stem cell derived cardiomyocytes was detected by CellTiter-Glo luminescent cell viability assay. 
RESULTS AND CONCLUSION: Isolated rabbit heart using Langendorff perfusion: Compared with the blank ontrol group, Sunitinib and Crizotinib at ≥ 3 μmol/L decreased heart rate (P < 0.01) and prolonged QT/QTc interval (P < 0.01), and reduced left ventricular pressure to different extents. Manual patch clamp recording: Compared with the blank control group, Sunitinib and Crizotinib at 3 μmol/L inhibited the activities of hERG, Nav1.5 and Cav1.2 channels and significantly prolonged the duration of action potential (P < 0.01). According to the analysis of the test article, the difference between the labeled concentration and the measured concentration of the recovered solution was not significant. Cell viability assays: Compared with the blank control group, adenosine triphosphate content in human induced pluripotent stem cell derived cardiomyocytes significantly decreased after treatment with Sunitinib (IC50=4.64 μmol/L), Doxorubicin (IC50=4.21 μmol/L) and Crizotinib (IC50=2.87 μmol/L), indicating that cell viability significantly decreased (P < 0.01). To conclude, this study successfully established an early cardiac safety evaluation method for antitumor drugs, which provides good support and help for the subsequent development of antitumor drugs.

Key words: Sunitinib, Crizotinib, Doxorubicin, Langendorff, patch clamp, cardiac safety evaluation

中图分类号: