天津医药 ›› 2016, Vol. 44 ›› Issue (2): 149-154.doi: 10.11958/58778

• 细胞与分子生物学 • 上一篇    下一篇

辛二酰苯胺异羟肟酸对人卵巢癌细胞恶性表型的抑制作用

常兴胜 1, 郑华川 2, 赵爽 2, 勾文峰 2, 杨雪峰 2, 刘晓娟 1△   

  1. 1辽宁医学院药学院(邮编 121000); 2辽宁医学院附属第一医院肿瘤实验中心
  • 收稿日期:2015-04-13 修回日期:2015-09-22 出版日期:2016-02-15 发布日期:2016-02-15
  • 通讯作者: △通讯作者 E-mail:lxj_yxy@163.com E-mail:719962257@qq.com

The inhibitory effects of suberoylanilide hydroxamic acid on the malignant phenotypes of ovarian carcinoma cells

CHANG Xingsheng1, ZHENG Huachuan2,ZHAO Shuang2, GOU Wenfeng2, YANG Xuefeng2 , LIU Xiaojuan1△   

  1. 1 Department of Pharmacy, Liaoning Medical University, Jinzhou 121000, China; 2 Cancer Research Center of the First Affiliated Hospital, Liaoning Medical University
  • Received:2015-04-13 Revised:2015-09-22 Published:2016-02-15 Online:2016-02-15
  • Contact: △Corresponding Author E-mail: lxj_yxy@163.com E-mail:719962257@qq.com

摘要: 目的 探讨辛二酰苯胺异羟肟酸(SAHA)对人卵巢癌细胞恶性表型的作用及其可能的分子作用机制。方法 (1)选取 2 组人卵巢癌细胞(SKOV3 和 SKOV3/DDP; HO8910 和 HO8910-PM)后, 设置对照组和终浓度为 1、 3、 5 及 7 μmol/L SAHA 组(SAHA 1~4 组), 采用 CCK-8 法分别检测 SAHA 对细胞增殖的影响。(2) 设置对照组和 SAHA 1、 2 组(2 和 5 μmol/L), Annexin V-FITC/PI 双标记流式细胞术分别检测 SAHA 对细胞凋亡及周期的影响。(3) RT-PCR 和 Western blot 检测 SAHA 1~4 组表型相关蛋白的表达水平。结果 (1)随着 SAHA 浓度的增加, SKOV3 细胞株 SKOV3/DDP 及 HO8910 细胞株 48 h 光密度 (OD) 值均呈逐渐降低趋势(均 P<0.05)。(2) 48 h SAHA 1、 SAHA 2 组凋亡率高于对照组(均 P<0.05); SAHA 作用 48 h, 细胞周期发生阻滞, 与对照组比较, SAHA 1 组和 SAHA 2 组 SKOV3 和 SKOV3/DDP 细胞 S 期和 G2/M 期比例增高, HO8910 和 HO8910-PM 细胞 G0/G1期比例增高(P<0.05)。(3) SAHA 1、 2 组 CyclinB1 和 Cdc2(p34)的 mRNA 表达水平均低于对照组, Caspase-3、 p21 和 p53 的 mRNA 表达水平明显高于对照组(P < 0.05); SAHA 1~4 组 Ac-Histone H3 和 Ac-Histone H4 和 p53 蛋白的表达较对照组明显增强, CyclinB1、 Cdc2 (p34)蛋白的表达减弱。结论 SAHA 通过调节恶性表型相关蛋白 Caspase-3、 p53、 CyclinB1 和 Cdc2(p34)的表达水平, 促进组蛋白乙酰化, 抑制卵巢癌细胞增殖, 阻滞细胞周期并诱导细胞凋亡。

关键词: 卵巢肿瘤, 细胞凋亡, 细胞增殖, 恶性表型, 辛二酰苯胺异羟肟酸, 组蛋白乙酰化

Abstract: Objective To explore the effects and molecular mechanisms of suberoylanilide hydroxamic acid (SAHA) on ovarian carcinoma. Methods (1)Two groups of ovarian carcinoma cell lines (SKOV3 and SKOV3/DDP, HO8910 and HO8910-PM) were exposed to SAHA (1, 3, 5 and 7 μmol/L SAHA, group 1-group 4). CCK-8 method was employed to evaluate the inhibitory effects of SAHA.(2) Ovarian cancer cell lines treated with SAHA (2 or 5 μmol/L SAHA) were used as 1 and 2 groups. Flow cytometry was performed following staining with Annexin V-FITC and PI for cell cycle and apoptosis.(3) Reverse transcription polymerase chain reaction (RT-PCR) and Western blot assay were used to assess the mRNA and protein expression levels of phenotypic correlation factor. Results (1) After 48 h of SAHA treatment, the OD value of SKOV3, SKOV3/DDP, and HO8910 showed a trend of gradually reduce (P<0.05).(2) The apoptotic rates were significantly higher in SAHA 1 and SAHA 2 groups than those of control group (P<0.05). Compared with control group, after 48 h of SAHA treatment, S phase and G2/M phase of SKOV3 and SKOV3/DDP cells increased; G0/G1 phase of HO8910 and HO8910-PM cells increased in SAHA 1 and 2 groups (P < 0.05).(3) The expression levels of CyclinB1 and Cdc2 (p34) mRNA were significantly lower in SAHA 1 and 2 groups than those of control group, while the expression levels of Caspase-3, p21 and p53 mRNA expression were significantly higher in SAHA 1 and 2 groups than those of control group. Furthermore, the expression of Ac-Histone H3, Ac-Histone H4,p53 protein were markedly improved, and CyclinB1, Cdc2(p34) protein decreased in SAHA 1- 4 groups. Conclusion SAHA may suppress cell growth, induce apoptosis and cause cycle arrest in ovarian carcinoma cells by promoting histone acetylation or modulating their phenotype-related proteins of Caspase-3, p53, CyclinB1 and Cdc2(p34).

Key words: ovarian neoplasms, apoptosis, cell proliferation, malignant phenotype, suberoylanilide hydroxamic acid, histone acetylationacetylation