实用肝脏病杂志 ›› 2025, Vol. 28 ›› Issue (4): 497-500.doi: 10.3969/j.issn.1672-5069.2025.04.005

• 实验性肝炎 • 上一篇    下一篇

HepG2和HepG2.2.15细胞ENPP2/EZH2表达变化及其对细胞增殖和侵袭力的影响*

邓万玉, 黄子乐, 刘泽妍, 秦培毓, 刘娜   

  1. 334001 江西省上饶市 上饶师范学院生命科学学院(邓万玉,黄子乐,刘泽妍,秦培毓);上饶市人民医院病理科(刘娜)
  • 收稿日期:2024-11-17 出版日期:2025-07-10 发布日期:2025-07-14
  • 通讯作者: 刘娜,E-mail:liuna_1008@163.com
  • 作者简介:邓万玉,女,37岁,医学博士,副教授。主要从事病毒性肝脏疾病致病机理研究。E-mail: wanyu0330@126.com
  • 基金资助:
    *国家自然科学基金资助项目(编号:82260603);江西省自然科学基金资助项目(编号:20224BAB206005)

Ectonucleotide pyrophosphatase/phosphodiesterase 2 and enhancer of Zeste homolog 2 in HepG2 and HepG2.2.15 cells and their impact on cell proliferation and invasiveness

Deng Wanyu, Huang Zile, Liu Zeyan, et al   

  1. College of Life Science, Shangrao Normal University, Shangrao 334001, Jiangxi Province, China
  • Received:2024-11-17 Online:2025-07-10 Published:2025-07-14

摘要: 目的 探究外核苷酸焦磷酸酶/磷酸二酯酶(ENPP2)和Zeste增强子同源物2(EZH2)在乙型肝炎病毒(HBV)阳性肝癌细胞的促肿瘤作用。方法 合成针对ENPP2和EZH2的siRNA,以敲除HepG2细胞和稳定转染HBV基因组的HepG2.2.15细胞两种蛋白表达。分别取HepG2、HepG2.2.15、转染pSM2质粒的HepG2细胞(HepG2/pSM2)、转染siENPP2或siEZH2的HepG2.2.15细胞,采用RT-PCR和Western blot法检测细胞ENPP2和EZH2 mRNA水平及其蛋白表达,采用CCK-8法检测细胞增殖,采用Trans-well试验检测肝癌细胞侵袭能力。结果 与HepG2细胞比,瞬时转染HBV表达质粒的HepG2和稳定转染HBV基因组的HepG2.2.15细胞ENPP2和EZH2 mRNA水平都显著升高(P<0.001),转染HBV的肝癌细胞ENPP2和EZH2蛋白表达也明显上调(P<0.001);HepG2.2.15细胞增殖和侵袭能力显著强于HepG2细胞(P<0.01),而抑制ENPP2或EZH2表达的HepG2.2.15细胞增殖和侵袭能力也明显减弱(P<0.01)。结论 HBV阳性肝癌细胞促肿瘤因子ENPP2和EZH2表达增强,细胞的增殖和侵袭力也增强,可能与肝癌发生有关。

关键词: HepG2细胞, HepG2.2.15细胞, 外核苷酸焦磷酸酶/磷酸二酯酶, Zeste增强子同源物2, 细胞增殖, 细胞侵袭, 体外

Abstract: Objective The aim of this experiment was to investigate tumor-promoting elements, e.g., ectonucleotide pyrophosphatase/phosphodiesterase 2 (ENPP2) and enhancer of Zeste homolog 2 (EZH2) in HepG2 and HepG2.2.15 cells and their impact on cell proliferation and invasiveness. Methods For inhibition of ENPP2 and EZH2 expression, siRNAs were synthesized, and HepG2, HepG2.2.15, pSM2 plasmid-transfected HepG2(HepG2/pSM2) and siENPP2 or siEZH2-transfected HepG2.2.15 cells were harvested. ENPP2 and EZH2 mRNAs were detected by real-time PCR and their expression was detected by Western blot. Proliferation and invasion of cells were detected by CCK-8 and Trans-well movement. Results ENPP2 and EZH2 mRNA loads in transient HBV-plasmid transfected HepG2 cells or HepG2.2.15 cells with stable HBV infection increased greatly, compared to those in HepG2 cells (P<0.001), and ENPP2 and EZH2 protein expression also intensified (P<0.001); proliferation and invasiveness of HepG2.2.15 cells were obviously elevated compared to in HepG2 cells (P<0.01), while inhibition of ENPP2 or EZH2 expression in HepG2.2.15 cells greatly weakened proliferation and invasiveness of the cells (P<0.01). Conclusion The intensified expressions of ENPP2 and EZH2 in HepG2 cells and in HepG2.2.15 cells might play a pivotal role in carcinogenesis, which needs further investigation.

Key words: HepG2 cells, HepG2.2.15 cells, Ectonucleotide pyrophosphatase/phosphodiesterase 2, Enhancer of Zeste homolog 2, Proliferation, Invasion, In vitro