华西口腔医学杂志

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超声加热影响口腔癌对化疗药物敏感性的实验研究

任国欣1,郭  伟2,沈国锋1,叶冬霞2,陈亚珠1,白景峰1   

  1. 1.上海交通大学生命科学技术学院  生物医学仪器研究所,上海 200240;2.上海交通大学医学院附属第九人民医院  口腔颌面外科,上海 200011
  • 收稿日期:2006-08-25 修回日期:2006-08-25 出版日期:2006-08-20 发布日期:2006-08-20
  • 通讯作者: 郭 伟,Tel:021-63138341
  • 作者简介:任国欣(1969-),男,黑龙江人,副主任医师,博士
  • 基金资助:

    上海交通大学-上海第二医科大学合作基金资助项目(03-02)

Experimental Study on Ultrasound Heating Affecting the Sensitivity of Oral Carcinoma to Chemotherapy Drugs

REN Guo-xin1, GUO Wei2, SHEN Guo-feng1, YE Dong-xia2, CHEN Ya-zhu1, BAI Jing-feng1   

  1. 1. Institute of Biomedical Instrument, College of Life Science & Biotechnology, Shanghai Jiaotong University, Shanghai 200240, China; 2. Dept. of Oral and Maxillofacial Surgery, Shanghai Ninth People′s Hospital, Shanghai Jiaotong University, Shanghai 200011, China
  • Received:2006-08-25 Revised:2006-08-25 Online:2006-08-20 Published:2006-08-20

摘要:

目的  探索超声加热对化疗药物的增敏作用,以便选择有效的超声热化疗药物。方法  在不同温度和加热时间的条件下,超声加热Tca8113裸鼠移植瘤动物模型,用改良MTT法检测肿瘤细胞对9种化疗药物的敏感性。结果  温度梯度加热处理组中,39 ℃组与对照组,41 ℃、42 ℃、43 ℃和44 ℃ 4组间的药物敏感性无显著性差异,而40 ℃组与41 ℃、42 ℃组间的药物敏感性有显著性差异。在时间梯度加热处理组中,15 min组与对照组、30 min与45 min组、60 min与75 min组之间的药物敏感性无显著性差异,而30 min和45 min组的药物敏感性明显高于其他组。结论  41—42 ℃超声加热30 min能显著地提高Tca8113细胞的药物敏感性,从而在药物敏感性方面验证了超声加热与化疗联合的合理性。

关键词:  口腔癌, 化疗药物敏感性试验, 超声, 热疗

Abstract:

Objective  To explore the influence of chemosensitivity of Tca8113 cells by modified MTT assay after the animal model of Tca8113 were treated by the ultrasound hyperthermia. Methods  The MTT assay of the BALB/C nu/nu mice model of Tca8113 cells treated by the ultrasound hyperthermia in vivo was performed. Results  The chemosensitivity to the 9 kinds of drugs demonstrated no significant differences between the Tca8113 cells in the control group, the 39 ℃-treated group and the groups treated from 41 ℃ to 44 ℃. But significant differences between the 40 ℃-treated group and the 41 ℃ or 42 ℃-treated group existed. In the heating-time grades test, there were no significant differences in the chemosensitivity to the 9 kinds of drugs between these three pairs of group(the control group and the 15 min-treated group, the 30 min-treated and the 45 min-treated group, the 60 min-treated and the 75 min-treated group). But there were significant differences between the 30 min-treated or the 45 min-treated group and the 60 min-treated or the 75 min-treated group. Conclusion  Ultrasound hyperthermia performed in 42 ℃ for 30—45 min can improve the chemosensitivity of Tca8113 cells to some drugs significantly, which confirms the rationality of synchronous combination of hyperthermia and chemotherapy in the chemosensitivity point of view for the first time.

Key words:  oral cavity carcinoma, chemosensitivity test, ultrasound, hyperthermia