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中国临床药理学与治疗学 ›› 2001, Vol. 6 ›› Issue (3): 204-206.

• 基础研究 • 上一篇    下一篇

猪苓多糖对膀胱癌细胞钙离子浓度的影响

章国来, 曾星, 梅玉屏, 何盛琪, 张新梅, 黄羽   

  1. 广州中医药大学附属广东省中医院, 广州 510120
  • 收稿日期:2001-03-19 修回日期:2001-04-21 出版日期:2001-06-26 发布日期:2020-11-30
  • 作者简介:章国来, 男, 主治医师, 主要从事肿瘤免疫学研究。
  • 基金资助:
    本课题为国家自然科学基金资助项目(№39870944) 和教育部优秀青年教师资助项目(教人司[2001] 39 号)。

Dynamic observation of the effects of polyporus polysaccharide on intracellular calcium in cultured human T24 cells with laser scanning confocal microscopy

ZHANG Guo-Lai, ZENG Xing, MEI yu-Ping, HE Shen-Qi, ZANG Xin-Mei, HUANG Yu   

  1. The Second Affiliated Hospital, Guangzhou TCM University, Guangzhou 510120
  • Received:2001-03-19 Revised:2001-04-21 Online:2001-06-26 Published:2020-11-30

摘要: 目的 观察猪苓多糖对人T24 膀胱癌细胞内钙离子(Ca2+) 浓度的影响, 探讨猪苓多糖抗癌机理。方法 体外培养人T24 细胞经钙荧光指示剂(calciumcrimson-AM) 负载后, 用激光扫描共聚焦显微镜测定猪苓多糖作用前后细胞内Ca2+随时间的变化。结果 猪苓多糖低剂量(0.2 mg·L-1) 使T24 细胞内Ca2+降低, 高剂量(>1 mg·L-1) 使T24 细胞内Ca2+升高, 最后维持在高钙水平上。猪苓多糖主要促进细胞核内Ca2+升高, 细胞浆Ca2+无明显改变。结论 猪苓多糖可引起T24 细胞内Ca2+水平的显著变化, 而且这种变化主要表现在细胞核内, 提示猪苓多糖可能有诱导细胞凋亡的作用。

关键词: 猪苓多糖, 膀胱癌细胞, 钙离子

Abstract: Aim To investigate the relationship between polypo rus polysaccharide (PUPS) and changes of int racellular calcium in human T24 bladder cancer cells. Methods Human T24 cells were cultured with PUPS and intracellular calcium level was measured with the fluorescent Ca2+ indicato r calcium crimson- AM and the laser scanning confocal microscopy.Results After human T24 cells were treated with a low dose of PUPS (0.2 mg·L-1), the int racellular calcium was decreased; while with PUPS (> 1.0 mg·L-1), the int racellular calcium became increased, and kept on ahigher level.Conclusion PUPS participates in the process of calcium message transduct ion.

Key words: polyporus polysaccharide, T24 bladder cancer cell, Ca2+

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