生物技术通报 ›› 2017, Vol. 33 ›› Issue (7): 224-230.doi: 10.13560/j.cnki.biotech.bull.1985.2016-0691

• 研究报告 • 上一篇    下一篇

PDSW联合热疗对胃癌细胞和组织中COX-2、Bcl-2表达的影响

唐辉蓉1,崔进1,张家骅1,代佑果2,李为明1,廖陈1   

  1. 1. 昆明医科大学第二附属医院,昆明 650101;
    2. 昆明医科大学第三附属医院,昆明 650101
  • 收稿日期:2016-07-21 出版日期:2017-07-11 发布日期:2017-07-11
  • 作者简介:唐辉蓉,女,博士,研究方向:消化外科;E-mail:tgyxjob@163.com
  • 基金资助:
    云南省科学技术厅联合专项(2010CD166)

Effects of PDSW Combined with Hyperthermia on COX-2 and Bcl-2 Expressions in Gastric Cancer Cells and Tissues

TANG Hui-rong1, CUI Jin1 ,ZHANG Jia-hua1, DAI You-guo2 ,LI Wei-ming1 ,LIAO Chen1   

  1. 1. Second Affiliated Hospital of Kunming Medical University,Kunming 650101;
    2. Third Affiliated Hospital of Kunming Medical University,Kunming 650101
  • Received:2016-07-21 Published:2017-07-11 Online:2017-07-11

摘要: 旨在探讨生理性深层海水(PDSW)联合热疗对人胃癌SGC-7901细胞和组织中COX-2和Bcl-2表达的影响,明确其在人胃癌SGC-7901体外和体内的抗癌作用。通过在体外培养人胃癌SGC-7901细胞株,随机分为实验组、对照组和空白组,实验组加PDSW,对照组加生理盐水,空白组不做其他处理,分别在37℃、40℃和43℃热疗温度下培养。同时,将SGC-7901细胞注射至裸鼠皮下,建立移植瘤模型,随机分为5组,至肿瘤长至直径为1 cm时,分别进行 H2O+RT、H2O +40℃、H2O +43℃、PDSW+40℃、PDSW+43℃处理,用实时荧光定量PCR检测细胞和组织中COX-2和Bcl-2基因表达情况,Western blot检测COX-2和Bcl-2蛋白的表达情况。结果显示,在SGC-7901细胞中和裸鼠皮下移植瘤的组织中,热疗均能降低COX-2、Bcl-2基因及蛋白的表达,同时,与生理盐水组相比,PDSW联合热疗处理下,细胞和组织中COX-2、Bcl-2表达量显著下降。PDSW联合热疗能抑制胃癌SGC-7901细胞中COX-2、Bcl-2基因和蛋白的表达,从而有效抑制胃癌细胞的增殖。

关键词: PDSW, 热疗, SGC-7901, COX-2, Bcl-2, qRT-PCR, Western blot

Abstract: This work aims to explore the effect of PDSW combined with hyperthermia on COX-2 and Bcl-2 expressions in gastric cancer cells SGC-7901 and tissues,and to clarify its anti-cancer effects on gastric cancer cells SGC-7901 in vitro and in vivo. The SGC-7901 cells were cultured in vitro and then were randomly divided into experimental,control and blank groups;the experimental group was added with PDSW,control group was given with normal saline,blank group was in no other treatment,and each group were cultured under 37℃,40℃ and 43℃ respectively. Concurrently,the SGC-7901 cells were injected into the nude mice subcutaneous to establish the transplantation tumor model. The injected mice were randomly divided into 5 groups,and then given the treatment with H2O+RT,H2O +40℃,H2O +43℃,PDSW+40℃,and PDSW+43℃ respectively when the tumor cells grew to 1 cm diameter. qRT-PCR and Western blot were used to detect the mRNA of gene COX-2 and Bcl-2 and the protein expression of COX-2 and Bcl-2 in the cells and tissues. As results,in SGC-7901 cells and nude mice subcutaneous transplantation tumor tissues,the expressions of gene COX-2 and Bcl-2 mRNA and their protein expressions decreased under the treatment of hyperthermia. Compared with the treatment of normal saline group,the expressions of gene COX-2 and Bcl-2 and their protein expression decreased remarkably under the treatment of PDSW combined with hyperthermia. Conclusively,PDSW combined with hyperthermia may inhibit the expressions of gene COX-2 and Bcl-2 and their protein expressions in gastric cancer SGC-7901 cells and tissues,so as to effectively inhibit the proliferation of gastric cancer cells.

Key words: PDSW, hyperthermia treats, SGC-7901, COX-2, Bcl-2, qRT-PCR, Western blot