J4

• 临床研究 • 上一篇    下一篇

超声激活血卟啉对体外培养的人肺癌细胞NCI-446、PLA-801C和PLA-801D的杀伤作用

钱东华1,2,马忠森2,孙晓峰3,任 锦2,乔俊华2   

  1. 1.吉林大学第一医院呼吸内科,吉林 长春130021;2.吉林大学第二医院呼吸内科,吉林 长春130041;3.吉林大学第一医院超声诊断科,吉林 长春130021
  • 收稿日期:2006-08-20 修回日期:1900-01-01 出版日期:2007-03-28 发布日期:2007-03-28
  • 通讯作者: 马忠森

Effects of ultrasound combined with hematoporphyrin on NCI-446, PLA-80IC,PLA-801D of human lung cancer cell lines in vitro

QIAN Dong-hua1,2,MA Zhong-sen2,SUN Xiao-feng3,REN Jin2,QIAO Jun-hua2   

  1. 1.Department of Respiratory Medicine, First Hospital,Jilin University,Changchun 130021, China;2.Department of Respiratory Medicine, Second Hospital,Jilin University Changchun 130041, China;3.Department of Ultrasound Diagnosis, First Hospital,Jilin University,Changchun 130021, China
  • Received:2006-08-20 Revised:1900-01-01 Online:2007-03-28 Published:2007-03-28
  • Contact: MA Zhong-sen

摘要: 目的:探讨超声激活血卟啉(HP)对体外培养的人肺癌细胞NCI-446、PLA-801C和PLA-801D的杀伤效应及机制。方法:以HP二盐酸盐为光敏剂,对不同浓度(5、10和20 g•L-1)HP处理的人肺癌细胞NCI-446、PLA-801C和PLA-801D进行超声波声照(实验组),另设细胞对照组不进行HP处理及超声波声照,用MTT法检测细胞活性(A492值),判断HP对肺癌细胞的杀伤作用。选用 10 g•L-1 HP和NCI-446细胞株进行声动力疗法(SDT),采用流式细胞仪检测HP对细胞周期及凋亡率的影响。结果:人肺癌细胞NCI-446、PLA-801C和PLA-801D各不同浓度HP实验组与对照组比较,细胞活性明显降低,差异有显著性 (P<0.05); NCI-446与PLA-801C、PLA-801D细胞活性比较差异有显著性 (P<0.05),而PLA-801C与PLA-801D比较差异无显著性 (P>0.05)。流式细胞术检测结果显示,SDT组发生了G0/G< sub>1期生长 停顿,凋亡率为(19.224±6.552)%,明显高于对照组[(0.320±0.360)%](P<0.01)。结论:超声激活HP对体外培养的人肺癌细胞NCI-446、PLA-801C和PLA-801D有明确的杀伤效应,其发生机制是通过诱导细胞凋亡。

关键词: 超声处理, 肺癌细胞

Abstract: Objective To observe the effects of ultrasound combined with hematoporphyrin (HP) on NCI-446, PLA-80IC,PLA-801D of human lung cancer cell lines in vitro. Methods NCI-446, PLA-80IC,PLA-801D of human lung cancer cell lines which were treated with different concentrations(5,10,20 g•L-1) of HP were used as exp erimental groups to investigate the killing role of ultrasound with HP as photosensitizer,and the cells in control group were not treated with HP and ultrosound. MTT was adopted to measure A492.STD was used in 10 g•L-1 Hp and NCI-446 cell lines, then the influence of HP in cell cycle and apoptotic rate was detected with flow cytom etry.Results There were significant differences of cell activity between various experimental groups and control group (P <0.05) and also between NCI-446,PLA-801C and PLA-801D(P<0.05);while no difference betwe en PLA-801C and PLA-801D. The result of flow cytometry showed that G0/G1 stage arrest was found in SDT group. The apoptotic rate in SDT group (19.224%±6.552%) was higher than that in control group (0.320%±0.360%) (P<0.01).Conclusion Ultrasound combined with HP has definite killing effect on human lung cancer lines NCI-446,PLA-801C and PLA-801D in vitro through inducting apoptosis.

Key words: sonication, lung cancer cells

中图分类号: 

  • R734.2