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曲古抑菌素A对人胃癌SGC-7901细胞凋亡及其RASSF1A基因表达的影响

廖爱军, 苏 琦, 童汪霞, 成 龙, 肖伟升, 陈娇艳

廖爱军, 苏 琦, 童汪霞, 成 龙, 肖伟升, 陈娇艳. 曲古抑菌素A对人胃癌SGC-7901细胞凋亡及其RASSF1A基因表达的影响[J]. 肿瘤防治研究, 2010, 37(03): 281-283. DOI: 10.3971/j.issn.1000-8578.2010.03.010
引用本文: 廖爱军, 苏 琦, 童汪霞, 成 龙, 肖伟升, 陈娇艳. 曲古抑菌素A对人胃癌SGC-7901细胞凋亡及其RASSF1A基因表达的影响[J]. 肿瘤防治研究, 2010, 37(03): 281-283. DOI: 10.3971/j.issn.1000-8578.2010.03.010
LIAO Ai-jun, SU Qi, TONG Wang-xia, CHENG Long, XIAO Wei-sheng, CHEN Jiao-yan. Effects of TSA on Apoptosis and Expression of RASSF1A Gene in Human Gastric Cancer SGC-7901 Cells[J]. Cancer Research on Prevention and Treatment, 2010, 37(03): 281-283. DOI: 10.3971/j.issn.1000-8578.2010.03.010
Citation: LIAO Ai-jun, SU Qi, TONG Wang-xia, CHENG Long, XIAO Wei-sheng, CHEN Jiao-yan. Effects of TSA on Apoptosis and Expression of RASSF1A Gene in Human Gastric Cancer SGC-7901 Cells[J]. Cancer Research on Prevention and Treatment, 2010, 37(03): 281-283. DOI: 10.3971/j.issn.1000-8578.2010.03.010

曲古抑菌素A对人胃癌SGC-7901细胞凋亡及其RASSF1A基因表达的影响

详细信息
    通讯作者:

    苏 琦

  • 中图分类号: R735.2

Effects of TSA on Apoptosis and Expression of RASSF1A Gene in Human Gastric Cancer SGC-7901 Cells

  • 摘要: 目的 探讨组蛋白去乙酰化酶抑制剂曲古抑菌素A(TSA)对人胃癌SGC-7901细胞凋亡及其RASSF1A基因表达调控的影响。 方法 用0.1、0.3、1.0μmol/L TSA分别处理人胃癌SGC-7901细胞,流式细胞仪检测细胞凋亡率,RT-PCR、Western blot分别检测RASSF1A mRNA和蛋白表达水平。 结果 流式细胞仪分析表明,不同浓度TSA可诱导SGC-7901细胞凋亡,并呈浓度及时间依赖性(P<0.05)。TSA干预前SGC-7901细胞无RASSF1A mRNA及蛋白表达,而不同浓度TSA处理SGC-7901细胞后,RASSF1A mRNA及蛋白表达分别上调,呈浓度及时间依赖性(P<0.05)。 结论 TSA诱导SGC-7901细胞凋亡可能与RASSF1A基因异常乙酰化状态恢复导致基因重新表达有关。

     

    Abstract: Objective To investigate the effects of the histone deacetylation inhibitor,trichostatin A (TSA) on the expression of RASSF1A gene in human gastric cancer cell line. Methods Gastric cancer SGC-7901 cells were treated with different concentration of TSA.The apoptosis of the cells were detected by flow cytometry.RT-PCR and Western blot were applied to detect the RASSF1A mRNA and protein expression levels,respectively. Results Flow cytometry analysis showed that the apoptosis rate in SGC-7901 cells went up significantly depended on thedoseand time(P<0.05).The mRNA and protein expression of RASSF1A gene was not detected in gastric cancer SGC-7901 cells before treatment.After treated with TSA at different concentrations and time,mRNA and protein expression of RASSF1A gene increased in a dose- and time-dependent manner (P<0.05). Conclusion It is possible that TSA induced the apoptosis of gastric cancer SGC-7901 cells by eliminating the aberrant histone acetylation status of RASSF1A gene.

     

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出版历程
  • 收稿日期:  2008-10-17
  • 修回日期:  2009-05-04
  • 刊出日期:  2010-04-24

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