华西口腔医学杂志 ›› 2017, Vol. 35 ›› Issue (4): 373-378.doi: 10.7518/hxkq.2017.04.006

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体外沉默异戊二烯化酶二牛龙牛儿基转移酶Ⅰ对舌鳞状细胞癌增殖的影响

王莹1(), 王奇民2, 李敬华3, 韩金宏2,4, 王莉莉3, 巢晨5, 周建华2, 童磊2, 鲁旭飞2,6, 周元1, 廖奕翔2, 何宗轩2, 李宁7, 曹蕾7, 刘文君8, 陈正岗2,9()   

  1. 1.潍坊医学院口腔医学院,潍坊 261021
    2.青岛市市立医院口腔颌面外科
    3.中心实验室,青岛 266071
    4.烟台市口腔医院口腔颌面外科,烟台 264008
    5.南京医科大学青岛临床学院普外科,青岛 266071
    6.即墨市普东卫生院口腔科,青岛 266234
    7.大连医科大学研究生院,大连 116044
    8.青岛市市立医院耳鼻喉科,青岛 266071
    9.上海交通大学医学院附属第九人民医院口腔颌面外科,上海 200011
  • 收稿日期:2016-10-11 修回日期:2017-04-09 出版日期:2017-08-01 发布日期:2017-08-01
  • 作者简介:

    王莹,硕士,E-mail:469055264@qq.com

  • 基金资助:
    国家自然科学基金(81372908);青岛市卫计委计划项目(2014-WJZD009,2013-WSZD011)

Effects of geranylgeranyltransferaseⅠsilencing on the proliferation of tongue squamous cancer cells

Ying Wang1(), Qimin Wang2, Jinghua Li3, Jinhong Han2,4, Lili Wang3, Chen Chao5, Jianhua Zhou2, Lei Tong2, Xufei Lu2,6, Yuan Zhou1, Yixiang Liao2, Zongxuan He2, Ning Li7, Lei Cao7, Wenjun Liu8, Zhenggang Chen2,9()   

  1. 1. College of Stomatology, Weifang Medical University, Weifang 261021, China
    2. Dept. of Oral and Maxillofacial Surgery, Qingdao Municipal Hospital, Qingdao 266071, China
    3. Central Lab, Qingdao Municipal Hospital, Qingdao 266071, China
    4. Dept. of Oral and Maxillofacial Surgery, YantaiStomatological Hospital, Yantai 264008, China
    5. Dept. of Surgery, Qingdao Clinical Hospital Affiliated to Nanjing Medical University, Qingdao 266071, China
    6. Dept. of Stomatology, Pudong Hospital of Jimo City, Qingdao 266234, China
    7. Postgraduate School, Dalian Medical University, Dalian 116044, China
    8. Dept. of Otorhinolaryngology, Qingdao Municipal Hospital, Qingdao 266071, China
    9. Dept. of Oral and Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
  • Received:2016-10-11 Revised:2017-04-09 Online:2017-08-01 Published:2017-08-01
  • Supported by:
    The National Natural Science Foundation of China (81372908);Project of Qingdao Municipal Health and Family Planning Commission (2014-WJZD009, 2013-WSZD011)

摘要:

目的 研究异戊二烯化酶二牛龙牛儿基转移酶Ⅰ(GGTase-Ⅰ)在舌鳞状细胞癌增殖中的作用。方法 登录Genebank确定人GGTase-Ⅰ基因序列,设计3条小干扰RNA(siRNA),并将siRNA转染至舌癌细胞Cal-27(GGTase-ⅠsiRNA组)。设立空白对照组(只加入转染试剂,不加入siRNA)和阴性对照组(NC-siRNA)。采用实时定量聚合酶链反应和蛋白质免疫检测转染后各组细胞GGTase-Ⅰ、RhoA的mRNA和蛋白表达;蛋白质免疫检测转染48 h后Cyclin D1、p21的表达变化;细胞增殖活性检测试剂盒和流式细胞术检测细胞的增殖活性和细胞周期变化。结果 与阴性对照组和空白对照组相比,GGTase-Ⅰ siRNA 组细胞的GGTase-Ⅰ的mRNA和蛋白表达下降(P<0.05),RhoA的mRNA和蛋白表达无明显改变(P>0.05);Cyclin D1的表达下降,p21表达升高,细胞的增殖活性下降,细胞周期发生改变(P<0.05)。结论 GGTase-Ⅰ siRNA能抑制舌鳞状细胞癌细胞中GGTase-Ⅰ的表达,抑制细胞增殖,提示GGTase-Ⅰ在舌鳞状细胞癌增殖中可能发挥重要作用。

关键词: 异戊二烯化酶二牛龙牛儿基转移酶Ⅰ, RhoA, 舌鳞状细胞癌, 增殖, Cyclin D1, p21

Abstract:

Objective This study aims to investigate the effect of geranylgeranyltransferaseⅠ (GGTase-Ⅰ) on the proliferation and growth of tongue squamous cancer cells. Methods Three small interfering RNAs (siRNAs) were designed on the basis of the GGTase-Ⅰ sequence in GeneBank. These siRNAs were then transfected into tongue squamous cancer cells Cal-27. The mRNA and protein expression of GGTase-Ⅰ and RhoA were examined by real-time quantitative polymerase chain reaction and Western blotting, respectively. The expression of Cyclin D1 and p21 were examined by Western blotting. The proliferation and growth ability were analyzed by cell counting kit-8 assay and flow cytometry. Results The mRNA and protein expression of GGTase-Ⅰ in Cal-27 was reduced significantly after the GGTase-Ⅰ siRNAs were transfected (P<0.05). No significant difference in RhoA mRNA and protein expression was detected (P>0.05). Cyclin D1 expression decreased, whereas p21 expression increased significantly. The cell cycle was altered, and the growth-proliferative activity was inhibited (P<0.05). Conclusion GGTase-Ⅰ siRNA can inhibit the expression of GGTase-Ⅰ and the proliferative activity of tongue squamous cancer cells. GGTase-Ⅰ may be a potential target for gene therapy in tongue squamous cell cancer.

Key words: geranylgeranyltransferaseⅠ, RhoA, tongue squamous cancer, proliferation, Cyclin D1, p21

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