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中华口腔医学研究杂志(电子版) ›› 2012, Vol. 6 ›› Issue (03) : 232 -238. doi: 10.3877/cma.j.issn.1674-1366.2012.03.003

基础研究

nm23-H1 基因转染前后人舌鳞状细胞癌Tca8113 细胞中蛋白激酶C 转位的变化
范红渠1,(), 周卫兵1, 郝鲁峰1, 邵磊1, 王智勇2   
  1. 1.441004 襄阳,东风汽车公司襄樊医院口腔科
    2.441004 襄阳,东风汽车公司襄樊医院美容科
  • 收稿日期:2012-03-10 出版日期:2012-06-01
  • 通信作者: 范红渠
  • 基金资助:
    湖北省襄阳市重点科技攻关计划(2007117)

Changes of PKC-θ translocation before and after transfection with nm23-H1 gene in human tongue squamous cell carcinoma Tca8113 c

Hong-qu FAN1,(), Wei-bing ZHOU1, Lufeng HAO1, Lei SHAO1, Zhi-yong WANG1   

  1. 1.Department of Dentistry, Xiangfan Hospital of Dongfeng Motor Co.Ltd., Xiangyan 441004, China
  • Received:2012-03-10 Published:2012-06-01
  • Corresponding author: Hong-qu FAN
引用本文:

范红渠, 周卫兵, 郝鲁峰, 邵磊, 王智勇. nm23-H1 基因转染前后人舌鳞状细胞癌Tca8113 细胞中蛋白激酶C 转位的变化[J/OL]. 中华口腔医学研究杂志(电子版), 2012, 6(03): 232-238.

Hong-qu FAN, Wei-bing ZHOU, Lufeng HAO, Lei SHAO, Zhi-yong WANG. Changes of PKC-θ translocation before and after transfection with nm23-H1 gene in human tongue squamous cell carcinoma Tca8113 c[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2012, 6(03): 232-238.

目的

研究nm23-H1 基因转染诱导人舌鳞状细胞癌(以下简称舌鳞癌)Tca8113 细胞凋亡过程中蛋白激酶C-θ(PKC-θ)的作用。

方法

采用脂质体转染法将真核表达载体pAdEasy-nm23-H1转染人舌鳞癌Tca8113 细胞株。 应用PKC-θ 活化抑制剂Calphostin C 和DMSO 预处理细胞30 min后,常规培养24 h,倒置显微镜观察细胞形态的变化;流式细胞仪检测细胞凋亡率;Western blot 分析Tca8113 细胞中PKC-θ 裂解活化状况;酶标仪(ELISA)检测Caspase-3 的相对活性。

结果

人舌鳞癌Tca8113 细胞胞浆中及核周存在PKC-θ 的表达,nm23-H1 基因转染后PKC-θ 从胞浆、核周转位到细胞核内表达。 nm23-H1 基因转染可导致PKC-θ 的裂解活化,形成功能性的催化片段,而Calphostin C抑制转染诱导的PKC-θ 裂解活化。 nm23-H1 基因转染后,Calphostin C 预处理组和DMSO 预处理组Tca8113 的凋亡率、Caspase-3 的活性增加,两组间有明显差异(P<0.05)。

结论

nm23-H1 诱导细胞凋亡过程中有PKC-θ 的裂解活化,PKC-θ 是nm23-H1 诱导舌鳞癌Tca8113 细胞株凋亡过程中的参与者,PKC-θ 激活Caspase-3 诱导细胞凋亡是nm23-H1 基因诱导肿瘤细胞凋亡机制之一。

Objective

To study the role of protein kinase C-θ (PKC-θ) in apoptosis in human tongue squamous cell carcinoma Tca8113 cell lines after transfected by nm23-H1 gene.

Methods

Tca8113 ce11s were transfected with pAdEasy-nm23-H1 by lipofection. The cells were pretreated with Calphostin C, a PKC-θ specific suppressor and DMSO for 30 minutes, the morphologic changes of the cells were observed under inverted microscope after routine culture of 24 hours. Apoptotic ratio was detected by flow cytometry. Activation and cleavage of PKC-θ were examin-ed by Western-blotting.Relative activities of Caspase-3 were studied with ELISA.

Results

The expression of PKC-θ was found translocating from cytoplasm and perinucleus to nucleus in Tca8113 cells after transfected with nm23-H1 gene. Gene transfection of nm23-H1 could induce PKC-θ activation and formed functional catalytic fragment, but Calphostin C played a suppressive role. The relative activity of Caspase-3 and apoptotic ratio were increased in both Calphostin C pretreated and DMSO pretreated group after transfected with nm23-H1 gene, and the differences were significant statistically (P<0.05).

Conclusions

The results of this study suggest that activation and cleavage of PKC-θ, which were induced by gene transfection of nm23-H1, played a role in the process of Tca8113 cells apoptosis. Activation of Caspase-3 by PKC-θ maybe one of the mechanism of tumor cells apoptosis induced by nm23-H1.

表1 空白对照液及待测样品液配置(μl)
图1 PKC-θ 在各组细胞中的表达(免疫组化 × 400) A.Tca8113 细胞组;B.Tca8113-Ad 细胞组;C、D.Tca8113-Ad-nm23-H1 细胞组
图2 各组细胞凋亡形态学观察(×100) A.Tca8113 cell-DMSO 预处理组;B.Tca8113 cell-Calphostin C 预处理组;C.Tca8113-Ad-nm23-H1-DMSO 预处理组;D.Tca8113-Ad-nm23-H1-Calphostin C 预处理组
图3 流式细胞仪检测Tca8113 细胞转染前后亚二倍体峰值变化 A.Tca8113 cell-DMSO 预处理组;B.Tca8113 cell-Calphostin C 预处理组;C.Tca8113-Ad-nm23-H1-DMSO 预处理组;D.Tca8113-Ad-nm23-H1-Calphostin C 预处理组
表2 Calphostin C 预处理组与DMSO 预处理组nm23-H1基因转染前后凋亡率比较(±s,%)
图4 nm23-H1 转染前后各组细胞PKC-θ Western blot分析图
a P>0.05,bP<0.05
1
Curtis CD, Likhite VS, McLeod IX, et al. Interaction of the tumor metastasis suppressor nonmetastatic protein 23 homologue H1 and estrogen receptor alpha alters estrogen- responsive gene expression. Cancer Res, 2007,67(21):10600-10607.
2
范红渠,周卫兵,郝鲁峰,等. 蛋白激酶C-θ 在颊黏膜鳞癌组织中表达的临床研究. 中国临床研究杂志, 2011,19(1):8-11.
3
Manicassamy S, Sun Z. The critical role of protein kinase Ctheta in Fas/Fas ligand-mediated apoptosis. J Immunol, 2007,178(1):312-319.
4
Ahmed S, Shibazaki M, Takeuchi T, et al. Protein kinase Ctheta activity is involved in the 2,3,7,8-tetrachlorodibenzo-pdioxin-induced signal transduction pathway leading to apoptosis in L-MAT, a human lymphoblastic T-cell line. FEBS J, 2005,272(4):903-915.
5
Yoshida K. Nuclear trafficking of pro-apoptotic kinases in response to DNA damage. Trends Mol Med, 2008,14(7):305-313.
6
Sakowicz-Burkiewicz M, Nishanth G, Helmuth U, et al.Protein kinase C-theta critically regulates the proliferation and survival of pathogen-specific T cells in murine listeriosis. J Immunol, 2008,180(8):5601-5612.
7
Shakibaei M, John T, Seifarth C, et al. Resveratrol inhibits IL-1 beta-induced stimulation of Caspase-3 and cleavage of PARP in human aticular chondrocytes in vitro. Ann NY Acad Sci, 2007,1095:554-563.
8
Visconti R, D'Adamio L. Functional cloning of genes regulating apoptosis in neuronal cells. Methods Mol Biol, 2007,399:125-131.
9
Manicassamy S, Yin D, Zhang Z, et al. A critical role for protein kinase C-theta-mediated T cell survival in cardiac allograft rejection. J Immunol, 2008,181(1):513-520.
10
Ou WB, Zhu MJ, Demetri GD, et al. Protein kinase C-theta regulates KIT expression and proliferation in gastrointestinal stromal tumors. Oncogene, 2008,27(42):5624-5634.
11
Hirata H, Takahashi A, Kobayashi S, et al. Caspases are activated in a branched protease cascade and control distinct downstream processes in Fas-induced apoptosis. J Exp Med,1998,187(4):587-600.
12
Gross K, Karagiannides I, Thomou T, et al. Substance P promotes expansion of human mesenteric preadipocytes through proliferative and antiapoptotic pathways. Am J Physiol Gastrointest Liver Physiol, 2009,296(5):G1012-1019.
13
Sakowicz-Burkiewicz M, Nishanth G, Helmuth U, et al.Protein kinase C-theta critically regulates the proliferation and survival of pathogen-specific T cells in murine listeriosis. J Immunol, 2008,180(8):5601-5612.
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