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中国临床药理学与治疗学 ›› 2023, Vol. 28 ›› Issue (11): 1241-1246.doi: 10.12092/j.issn.1009-2501.2023.11.006

• 基础研究 • 上一篇    下一篇

肝细胞癌中DCLK1转录调控的机制研究

吴先闯1,2,刘瑜新1,牛玉季2,赫锦锦2,3,乔  辉2,3,张蕾蕾1   

  1. 1河南大学淮河医院,开封  475001,河南;2河南大学药学院,开封  475004,河南;3河南大学第一附属医院,开封  475001,河南
  • 收稿日期:2023-07-24 修回日期:2023-08-28 出版日期:2023-11-26 发布日期:2023-11-10
  • 通讯作者: 乔辉,男,本科,副主任药师,从事医院药学及药物基础研究。 E-mail:lyxhndx@foxmail.com
  • 作者简介:吴先闯,男,硕士,副主任药师,从事肿瘤药理学研究。 E-mail:wuxc128@163.com
  • 基金资助:
    河南省科技攻关项目(212102311044);河南省医学科技攻关计划项目(2018020338)

Mechanism of DCLK1 transcriptional regulation in HCC

WU Xianchuang1,2, LIU Yuxin1, NIU Yuji2, HE Jinjin2,3, QIAO Hui2,3, ZHANG Leilei1   

  1. 1Huaihe Hospital of Henan University, Kaifeng 475001, Henan, China; 2Pharmacy College of Henan University, Kaifeng 475004, Henan, China; 3The First Affiliated Hospital of Henan University, Kaifeng 475001, Henan, China
  • Received:2023-07-24 Revised:2023-08-28 Online:2023-11-26 Published:2023-11-10

摘要:

目的:研究双皮质素样激酶1(doublecortin-like kinase 1,DCLK1)在肝癌中发生转录上调的机制,为肝癌的防治提供新思路。方法:实时定量 PCR 检测表皮生长因子(epidermal growth factor,EGF)是否通过表皮生长因子受体(epidermal growth factor receptor,EGFR)上调肝癌细胞中DCLK1 mRNA的表达,Western blot检测EGF是否通过EGFR上调肝癌细胞中DCLK1蛋白的表达,免疫组织化学染色检测EGFR和DCLK1在39例人肝癌组织中的表达情况。结果:EGF孵育肝癌细胞HepG2和Huh-7后,DCLK1 mRNA和蛋白的表达明显上调(P<0.05,P<0.01),而基因敲减EGFR可以显著抑制EGF诱导的DCLK1 mRNA和蛋白的上调(P <0.01)。在人肝癌标本中,EGFR和DCLK1表达呈显著的正相关(r=0.669 6)。结论:EGFR参与了肝癌组织中DCLK1的转录调控。

关键词: 肝细胞癌, 表皮生长因子受体, 双皮质素样激酶1, 转录

Abstract:

AIM: To investigate the molecular mechanism through which DKK1 is transcriptionally regulated in HCC (hepatocellular carcinoma) cells. METHODS: Real time PCR was used to explore whether EGFR was involved in regulating DCLK1 mRNA expression in HCC cells; Western blot assay was used to examine whether EGFR-mediated the up-regulation of DCLK1 protein in HCC cells; Immunohistochemical (IHC) analyses were used to examine the protein expression of EGFR and DCLK1 in 39 human HCC tumor specimens. RESULTS: EGF promoted the expression of DCLK1 mRNA and protein in HepG2 and Huh-7 cells (P<0.05, P<0.01), while knockdown of EGFR with two specific siRNA could reverse EGF-induced the up-regulation of DCLK1 mRNA and protein (P<0.01). IHC analyses revealed that the amount of EGFR correlated significantly with that of DCLK1 (r=0.669 6). CONCLUSION: EGFR promoted DCLK1 transcription in HCC.

Key words: hepatocellular carcinoma, EGFR, DCLK1, transcription

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