http://jcps.bjmu.edu.cn

中国药学(英文版) ›› 2015, Vol. 24 ›› Issue (8): 545-551.DOI: 10.5246/jcps.2015.08.069

• 【研究论文】 • 上一篇    下一篇

抑制钙激活氯通道ANO1/TMEM16A对细胞迁移的阻止作用

贾凌晗, 刘雯, 王克威*   

  1. 北京大学医学部 药学院 分子与细胞药理系; 天然药物及仿生药物国家重点实验室, 北京 100191
  • 收稿日期:2015-05-04 修回日期:2015-05-15 出版日期:2015-08-22 发布日期:2015-06-10
  • 通讯作者: Tel/Fax: 86-10-82805065, E-mail: wangkw@bjmu.edu.cn
  • 基金资助:
    The Ministry of Science and Technology of China (Grant No. 2014ZX09507003-006-004).

Inhibiting calcium-activated chloride channel ANO1/TMEM16A suppresses migration of tumor epithelial cells

Linghan Jia, Wen Liu, KeWei Wang*   

  1. Department of Molecular and Cellular Pharmacology; State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
  • Received:2015-05-04 Revised:2015-05-15 Online:2015-08-22 Published:2015-06-10
  • Contact: Tel/Fax: 86-10-82805065, E-mail: wangkw@bjmu.edu.cn
  • Supported by:
    The Ministry of Science and Technology of China (Grant No. 2014ZX09507003-006-004).

摘要:

不受控制的细胞迁移是肿瘤转移和形成的一个共同特征。了解细胞迁移过程中的重要分子靶点可以帮助我们开发控制侵袭性肿瘤细胞的新型治疗策略。在本研究中, 我们发现钙激活氯通道ANO1/TMEM16A在细胞的迁移中扮演了重要角色, 抑制ANO1离子通道功能能够使肿瘤细胞的迁移受到抑制。在肿瘤细胞系中, 通过shRNA沉默ANO1的表达可以抑制细胞的迁移和侵袭能力。同时, ANO1特异性抑制剂T16Ain-A01可以发挥显著减慢肿瘤细胞迁移和侵袭速度的药理作用, 并且这种作用的大小依赖于T16Ain-A01使用剂量。综上所述, 钙激活氯通道ANO1与细胞迁移密切相关, 研究CaCC抑制剂将有助于开发针对癌症转移的创新疗法

关键词: 细胞迁移, 转移, 肿瘤, 上皮细胞, ANO1/TMEM16A, shRNA, T16Ain-A01

Abstract:

Uncontrolled cell migration is a common feature of tumor metastasis and formation. Understanding the molecular targetscritically involved in cell migration process can lead to the development of potentially novel therapeutic strategies for controlling invasion of tumor cells. In this study, we showed that calcium-activated chloride channel ANO1/TMEM16A played an important role in cell migration and inhibition of ANO1 channel function suppressed the migration of tumor epithelial cells. Silencing ANO1 by small hairpin RNA (shRNA) resulted in suppression of cell migration and invasiveness in cancer cell lines. In addition, pharmacological inhibition of ANO1 by the channel specific inhibitor T16Ain-A01 significantly slowed down the migration andinvasion of tumor epithelial cells in a dose-dependent manner. Taken together, our findings have demonstrated that calcium-activated chloride channel ANO1 contributes to cell migration, and specific ANO1/TMEM16A inhibitors can be the promising candidate to develop new therapies for cancer metastasis.

Key words: Cell migration, Metastasis, Cancer, Epithelial cells, ANO1/TMEM16A, shRNA, T16Ain-A01

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