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山东大学学报(医学版)

• 基础医学 • 上一篇    下一篇

高剂量法诱导胃癌铂类耐药细胞株的建立及其生物学特性

延冰1,刘国勤2,姜永胜2,沈海玉2,孙少川2   

  1. 1.山东大学医学院, 山东 济南 250012; 2.山东大学附属济南市中心医院胃肠外科, 山东 济南 250013
  • 收稿日期:2013-09-12 出版日期:2014-04-10 发布日期:2014-04-10
  • 通讯作者: 孙少川 E-mail:sunsc1965@126.com
  • 基金资助:
    济南市科技计划项目(201101114)

Establishment of cisplatin-resistant gastric cancer cell line and the biological characteristics

YAN Bing1, LIU Guoqin2, JIANG Yongsheng2, SHEN Haiyu2, SUN Shaochuan2   

  1. 1. School of Medicine, Shandong University, Jinan 250012, Shandong, China;
    2. Department of Gastrointestinal Surgery, Jinan Central Hospital Affiliated to Shandong University,
    Jinan 250013, Shandong, China
  • Received:2013-09-12 Online:2014-04-10 Published:2014-04-10

摘要: 目的  探讨利用高剂量(0.8μg/mL)顺铂(cDDP)诱导胃癌顺铂耐药细胞株的建立及其生物学特性。方法  采用大剂量冲击法诱导人胃癌耐顺铂细胞株BGC823/cDDP建立。观察BGC823/cDDP细胞形态,CCK-8法检测细胞的耐药指数,CCK-8绘制生长曲线,流式细胞仪检测细胞的生长周期,Transwell法检测细胞侵袭能力的变化,免疫发光法测定细胞培养液中肿瘤标志物CEA、CA-199含量。结果  采用大剂量cDDP冲击方法  诱导后,BGC823/cDDP细胞较BGC823细胞体积略增大,细胞核增大,形状不规则,并可见散在的多核巨细胞,其对顺铂的耐药指数为4.54,耐药细胞系的倍增时间较正常BGC823细胞延长,BGC823/cDDP细胞G1期细胞增多,而S、G2期细胞减少,耐药细胞株侵袭力增强(P<0.05),耐药细胞培养液中肿瘤标志物CEA、CA-199含量与正常胃癌细胞无明显差别。结论  通过大剂量cDDP冲击方法  建立了顺铂耐药胃癌细胞株BGC823/cDDP,耐药细胞与正常细胞的生物学特性不同。

关键词: 顺铂, 耐药细胞, 生物学特性, 胃癌

Abstract: Objective  To explore the drug-resistant gastric cancer cell line induced by high-dose  cDDP and its biological characteristics.  Methods  A drug-resistant gastric cancer cell line BGC823/cDDP was established by high-dose cDDP. The changes of biological characteristics of the cell lines were observed using light microscopy. The resistance index was determined by CCK-8 assay. The cell growth curve was drawn by CCK-8 assay. The cell cycle of drug-resistant cells was tested by flow cytometry. The cell invasion ability was observed by Transwell assay. The densities of CEA and CA-199 in the cell culture medium were evaluated by immune luminescence. Results  Compared with BGC823 cells, the BGC823/cDDP cells turned to be slightly bigger and irregular in shape, and some giant cells could be seen. The proliferation rate of BGC823/cDDP cell prolonged, with the resistance index being 4.54. The population doubling-time prolonged. The cell numbers of G1 phase increased while decreased in S and G2 phase in BGC823/cDDP cell. The invasion ability was stronger in BGC823/cDDP cell (P<0.05). The densities of CEA and CA-199 had no significant differences between BGC823 and BGC823/cDDP. Conclusion  The cDDP-resistant gastric cancer cell line BGC823/cDDP was induced by high-dose cDDP. The BGC-823 and BGC-823/cDDP cells were different in biological characteristics.

Key words: Biological characteristics, Gastric cancer, Drug-resistant cells, cDDP

中图分类号: 

  • R735.2
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