Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (10): 1482-1487.doi: 10.3969/j.issn.2095-4344.2015.10.002

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5-Fluorouracil enriches cancer stem cells in tongue squamous cell carcinoma Tca8113

Xu Wang, Ji Ping   

  1. Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 400030, China
  • Online:2015-03-05 Published:2015-03-05
  • Contact: Ji Ping, M.D., Professor, Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 400030, China
  • About author:Xu Wang, Master, Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 400030, China
  • Supported by:

    the Innovative Team Construction Plan of Universities in Chongqing in 2013; the grant from the Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education

Abstract:

BACKGROUND: Tumor cells are resistant to chemotherapeutic drugs, and drug resistance is closely correlated with tumor stem cells. Therefore, how to kill tumor stem cells will become the key to the treatment of oral squamous cell carcinoma.

OBJECTIVE: To study the effect of 5-fluorouracil on biological characteristics of tongue squamous cell carcinoma Tca8113 cells.
METHODS: Viability of Tca8113 cells treated with different concentrations of 5-fluorouracil was determined by cell counting kit-8, and the best drug concentration and time were screened for subsequent experiments. Tca8113 cells without 5-fluorouracil acted as control group. Then the cell cycle and percentage of the side population cells in Tca8113 cells were determined by flow cytometry. Scratch test was used to determine the migration ability of Tca8113 cells.
RESULTS AND CONCLUSION: Results from cell counting kit-8 showed that 5-fluorouracil inhibited the viability of Tca8113 cells positively in a time- and dose-dependent manner. Tca8113 cells under intervention with 50 mg/L 5-fluorouracil for 48 hours showed lowest cell viability. Flow cytometry results showed that in the experimental group, G0/G1 phase cells increased significantly compared with the control group (P=0.01), S phase cells decreased significantly compared with the control group (P=0.244), and G2/M phase cells disappeared completely. After treatment with 5-fluorouracil, the percentage of side population cells was increased significantly (P=0.00). The scratch test showed that in the experimental group, the cells had better ability of wound healing than those in the control group. In conclusion, 5-fluorouracil can enrich the cancer stem cell population in Tca8113 cells.

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


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Key words: Neoplastic Stem Cells, Fluorouracil, Cell Cycle

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