吉林大学学报(医学版) ›› 2016, Vol. 42 ›› Issue (03): 506-511.doi: 10.13481/j.1671-587x.20160317

• 基础研究 • 上一篇    下一篇

人舌鳞状细胞癌顺铂耐药细胞株CAL-27/DDP的建立及其生物学评价

姜慧1,2, 张桐菲1, 杨鹤1, 徐召南1, 毕也1, 孙抒2, 张泽兵1, 贾杰3   

  1. 1. 吉林大学口腔医院病理科, 吉林 长春 130021;
    2. 延边大学基础医学院病理学与法医学教研部, 吉林 延吉 133002;
    3. 吉林大学中日联谊医院电诊科, 吉林 长春 130033
  • 收稿日期:2015-12-26 发布日期:2016-06-17
  • 通讯作者: 贾杰(Tel:0431-84997674,E-mail:850141796@qq.com) E-mail:850141796@qq.com
  • 作者简介:姜慧(1984-),女,吉林省延吉市人,医学硕士,主要从事肿瘤学方面的研究。
  • 基金资助:

    吉林省科技厅自然基金资助课题(20150101174JC);吉林省卫计委科研基金资助课题(20132004)

Establishment of human tongue squamous cell carcinoma cisplatin resistant cell line CAL-27/DDPand its biological evaluation

JIANG Hui1,2, ZHANG Tongfei1, YANG He1, XU Zhaonan1, BI Ye1, SUN Shu2, ZHANG Zebing1, JIA Jie3   

  1. 1. Department of Pathology, Stomatology Hospital, Jilin University, Changchun 130021, China;
    2. Department of Pathology and Forensic Medicine, College of Basic Medical Sciences, Yanbian University, Yanji 133002, China;
    3. Department of Electrical Diagnosis, China-Japan Union Hospital, Jilin University, Changchun 130033, China
  • Received:2015-12-26 Published:2016-06-17

摘要:

目的: 建立人舌鳞状细胞癌(舌鳞癌)顺铂耐药细胞株CAL-27/DDP,探讨其顺铂耐药机制。方法: 采用顺铂浓度梯度法对人舌鳞癌CAL-27细胞株进行诱导,将细胞分为CAL-27组和CAL-27/DDP组。CAL-27组细胞株用普通培养液培养,CAL-27/DDP组细胞株用含有不同浓度顺铂的培养液培养,经过12个月的诱导形成生长良好的耐药细胞系株CAL-27/DDP。采用倒置显微镜观察细胞株形态表现;MTT法检测细胞株的半数抑制浓度(IC50)和耐药指数(RI);流式细胞术检测细胞株的细胞周期;RT-PCR法检测细胞株中多药耐药基因(MDR1)mRNA的相对表达水平;Western blotting法检测细胞株P糖蛋白(P-gp)的相对表达水平。结果: CAL-27/DDP组细胞株在一段时间内能在普通培养液中稳定生长,并维持其形态和耐药性状。与CAL-27组细胞株比较,CAL-27/DDP细胞略增大,细胞中出现颗粒和"空泡"样变,胞浆丰富,倍增时间延长(P<0.01),RI为18.09±0.30。与CAL-27组比较,CAL-27/DDP组G1期和G2期细胞比例减少,S期细胞比例升高,CAL-27/DDP组细胞株中MDR1mRNA和P-gp相对表达水平升高(P<0.01)。结论: 本研究建立了人舌鳞癌顺铂耐药细胞株CAL-27/DDP,其耐药机制与CAL-27/DDP细胞株中MDR1和P-gp的表达水平上调有关联。

关键词: 癌, 鳞状细胞, 舌肿瘤, 顺铂, 耐药性, MDR1, P糖蛋白

Abstract:

Objective: To establish the drug-resistant cell line CAL-27/DDP of human tongue squamous cell carcinoma,and to discuss the mechanism of cisplatin resistance. Methods: The CAL-27/DDP cells were induced by increasing the concentrations of cisplatin in vitro. Then the cells were divided into CAL-27 group and CAL-27/DDP group.The cells in CAL-27 group were teated with common nutrient solution and the cells in CAL-27/DDP group were treated with nutrient solution containing different concentrations of cisplatin. The resistance cell line CAL-27/DDP with good growth status was formed 12 months after induction.The morphology of cells was observed by inverted microscope;the half maximal inhibitory concentration(IC50) value and drug resistance index(RI) of cisplatin in the CAL-27 and CAL-27/DDP cells were detected by MTT assay;the cell cycle distribution of CAL-27 and CAL-27/DDP was detected by flow cytometry;the relative expression level of MDR1 in the cells was detected by reverse transcriptase polymerase chain reaction (RT-PCR) method;the relative expression level of P-glycoprotein(P-gp) in the cells was detected by Western blotting method. Results: The cells in CAL-27/DDP group could stably grow in the ordinary medium in a period and maintained its morphology and resistance status.Compared with CAL-27 group,the cells in CAL-27/DDP group showed particles and "cavity" samples,plenty of plasma,and increased doubling time (P<0.01);the RI was 18.09±0.30.Compared with CAL-27 group,the ratios of cells at G1 phase and G2 phase in CAL-27/DDP group were decreased,and the ratio of cells at S phase and the relative expression level of MDR1 mRNA in the CAL-27/DDP cells were increased significantly(P<0.01),and the relative expression level of P-gp was increased (P<0.01). Conclusion: The drug-resistant cell line CAL-27/DDP of human tongue squamous cell carcinoma is established sucessfully and the drug-resistant mechanismmay be related to the up-regulation of MDR1 and P-gp expression levels in CAL-27/DDP cells.

Key words: carcinoma,squamous cell, tongue neoplasms, cisplatin, drug resistance, MDR1, P-glycoprotein

中图分类号: 

  • R739.86