大理大学学报 ›› 2021, Vol. 6 ›› Issue (8): 1-6.DOI: 10. 3969 / j. issn. 2096-2266. 2021. 08. 001

• 药学 •    下一篇

美洲大蠊多肽PAE2 逆转耐药细胞株多药耐药性的研究

王彦权1,张鸿翰1,吕 鸿1,李彩琳1,Najib Mohammerd1,彭 芳1,吴定宇2*   

  1. (1. 大理大学药学院,云南大理 671000;2. 大理大学资产与实验室管理处,云南大理 671000)
  • 收稿日期:2021-02-24 修回日期:2021-03-31 出版日期:2021-08-15 发布日期:2021-09-28
  • 通讯作者: 吴定宇,讲师,E-mail: fetoio@sina.com。
  • 作者简介:王彦权,硕士研究生,主要从事肿瘤耐药机制研究。
  • 基金资助:
    国家自然科学基金项目(81560600)

Study on Reversal of Multidrug Resistance of Drug-Resistant Cell Lines by Polypeptide PAE2 from Periplaneta americana

Wang Yanquan1, Zhang Honghan1, Lü Hong1, Li Cailin1, Najib Mohammerd1, Peng Fang1, Wu Dingyu2*   

  1. (1. College of Pharmacy, Dali University, Dali, Yunnan 671000, China; 2. The Asset and Laboratory Management Division,Dali University, Dali, Yunnan 671000, China)
  • Received:2021-02-24 Revised:2021-03-31 Online:2021-08-15 Published:2021-09-28

摘要: 目的:探讨美洲大蠊多肽PAE2 逆转人肝细胞癌耐药细胞株BEL-7402/5-FU 多药耐药性的作用及机制。方法:以人肝细胞癌敏感细胞株BEL-7402 和人肝细胞癌耐药细胞株BEL-7402/5-FU 为研究对象。采用噻唑蓝比色法(methyl thiazolyl tetrazolium, MTT)检测细胞活力;荧光定量聚合酶链式反应(real time-polymerase chain reaction, RT-PCR)和免疫细胞化学染色法检测细胞中谷胱甘肽-S- 转移酶(glutathione S-transferase-π,GST-π)、DNA 拓扑异构酶Ⅱ(topo-isomerase type Ⅱ,TopoⅡ)和蛋白激酶C(protein kinase C,PKC)的mRNA 和蛋白的相对表达量。结果:美洲大蠊多肽PAE2 能有效逆转人肝细胞癌耐药细胞BEL-7402/5-FU 的多药耐药性,能下调多药耐药相关酶PKC、GST-π、TopoⅡ的mRNA 和蛋白表达水平。结论:PAE2 在体外逆转多药耐药的作用机制可能与下调多药耐药相关酶有关。

关键词: 肝癌, 多药耐药, 交叉耐药, 美洲大蠊多肽PAE2

Abstract: Objective: To investigate the effect and mechanism of Periplaneta americana polypeptide PAE2 on reversing multi-drug
resistance of human hepatocellular carcinoma drug-resistant cell line BEL-7402/5-FU. Methods: Human hepatocellular carcinoma
sensitive cell line BEL-7402 and human hepatocellular carcinoma drug-resistant cell line BEL-7402/5-FU were used as the research
objects. The cell viability was detected by methyl thiazolyl tetrazolium (MTT) assay. The mRNA and protein expression levels of
glutathione S-transferase- π (GST- π ), topo-isomerase type (Topo ) and protein kinase C (PKC) in cells were detected by real
time- polymerase chain reaction(RT-PCR) and immunocytochemical staining. Results: The Periplaneta americana polypeptide
PAE2 can effectively reverse the multi-drug resistance of human hepatocellular carcinoma drug-resistant cells BEL-7402/5-Fu, and
can down-regulate the mRNA and protein expression levels of multi-drug resistance related enzymes like PKC, GST- π and Topo .
Conclusion: The mechanism of PAE2 on reversing multidrug resistance in vitro may be related to the down-regulation of multidrug
reactance-related enzymes.

Key words: hepatocellular carcinoma, multidrug resistance, cross-resistance, polypeptide PAE2 from Periplaneta americana

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