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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (8): 890-893.

• 研究原著 • 上一篇    下一篇

5-氟脲嘧啶对口腔癌Tb细胞增殖活性及钾通道功能的影响

马宇光, 武力, 王育成, 马大昌, 王丽京1   

  1. 兰州大学第一医院乳腺病科, 兰州 730000, 甘肃;
    1广东药学院基础医学院组胚教研室, 广州 510224, 广东
  • 收稿日期:2005-05-31 修回日期:2005-06-05 发布日期:2020-11-22
  • 通讯作者: 王丽京,女,教授,硕士生导师,研究方向:肿瘤病理。Tel:020-39340880 E-mail:wanglijing62@yahoo.com.cn
  • 作者简介:马宇光,女,硕士,研究方向:肿瘤病理。Tel:029-83765732 E-mail:xiemanjiang@163.com

Effects of 5-Fluorouracil on cell proliferation and potassium channel function in oral cancer cell line Tb

MA Yu-guang, WU Li, WANG Yu-cheng, MA Da-chang, WU Li, WANG Li-jing1   

  1. Department of Breast Diseases, the First Affiliated Hospital of LanzhouUniversity, Lanzhou 730000, Gansu, China;
    1Department of Histology and Embryology, Guang Dong College of Pharmacy, Guangzhou 510224, Guangdong, China
  • Received:2005-05-31 Revised:2005-06-05 Published:2020-11-22

摘要: 目的: 观察5-氟脲嘧啶(5-FU)对口腔癌Tb细胞增殖活性以及钾离子通道功能的影响,进一步揭示5-FU的抗肿瘤机理,并初步探讨钾离子通道与肿瘤细胞增殖的关系。方法: 以5-FU作用Tb细胞24h后,应用MTT比色法与平板克隆形成实验观察Tb细胞的增殖活性,同时以全细胞膜片钳技术检测Tb细胞膜电位与跨膜钾电流的改变。结果: 与空白对照组相比,5-FU能明显抑制Tb细胞的增殖活性,并且可使细胞膜电位发生去极化改变,跨膜钾电流显著降低。结论: 5-FU在抑制Tb细胞增殖的同时钾通道功能也显著降低,提示钾离子通道可能参与调控5-FU抑制Tb细胞增殖的过程。

关键词: 5-氟脲嘧啶, Tb 细胞, 增殖, 钾通道, 膜片钳技术

Abstract: AIM: To evaluate the effects of 5-Fluorouracil (5-FU) on cell proliferation and potassium channel function in oral cancer cell line Tb.METHODS: After treatment with 5-FU for 24 h, the proliferation of Tb cells was determined by MTT and clone formation assay, the membrane potential and potassium channel current of Tb cells were recorded by whole-cell patch clamp technique.RESULTS: Compared with the control group (CON), 5-FU inhibited proliferation of the Tb cells.At the same time the membrane was depolarized and the potassium channel current significantly decreased compared with the CON group.CONCLUSION: Potassium channel may play an important role in 5-FU-inhibited the proliferation of Tb cells.

Key words: 5-Fluorouracil (5-FU), Tb cells, proliferation, potassium channel, patch clamp technique

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