医学分子生物学杂志 ›› 2023, Vol. 20 ›› Issue (4): 359-364.doi: 10.3870/j.issn.1672-8009.2023.04.013

• 论著 • 上一篇    下一篇

丙泊酚通过 SFRP1-Wnt 信号通路抑制肠癌细胞增殖侵袭的机制 研究

  

  1. 上海市宝山区仁和医院 (复旦大学附属华山医院北院宝山分院) 麻醉科 上海市, 200431
  • 出版日期:2023-07-31 发布日期:2023-09-06

Propofol Inhibits the Proliferation and Invasion of Colorectal Cancer Cells via Regulating SFRP1-Wnt Signaling Pathway

  1. Department of Anesthesiology, Renhe Hospital of Baoshan District ( Baoshan Branch of Huashan Hospital Affiliated to Fudan University), Shanghai, 200431, China
  • Online:2023-07-31 Published:2023-09-06

摘要: 目的 研究丙泊酚调控 SFRP1-Wnt 信号通路抑制肠癌细胞增殖侵袭的作用机制。 方法 肠癌细 胞 SW620 及 HT29 分为对照组及丙泊酚组, CCK-8 检测细胞增殖活性, 细胞划痕实验和 Transwell 小室分析 细胞转移和侵袭能力, 逆转录实时荧光定量 PCR 检测 Wnt 信号通路相关基因, 染色质免疫沉淀技术分析 EZH2 及 H3K27Me3 在 SFRP1 启动子区的富集程度。 结果 CCK-8 细胞增殖试验表明肠癌细胞 SW620 及 HT29 丙泊酚处理 24 h 后, 丙泊酚组增殖活性显著低于对照组细胞 (P< 0. 01)。 细胞划痕实验表明丙泊酚 组细胞迁移愈合面积显著低于对照组 (P< 0. 01)。 Tranwell 小室实验发现, 丙泊酚组穿膜细胞数量显著低 于对照组 (P< 0. 01)。 qPCR 检测发现丙泊酚组肠癌细胞较对照细胞, E-cadherin 显著上调 (P< 0. 01), 而 N-cadherin 表达减低 (P< 0. 01); Wnt 信号通路靶基因 β-catenin、 c-Myc 及 Cyclin D1 与对照组比较明显下调 (P< 0. 01); Wnt 上游调节因子 SFRP1 也出现了显著表达下调 (P< 0. 01)。 染色质免疫沉淀揭示丙泊酚组 细胞的 EZH2、 H3K27Me3 在 SFRP1 启动子富集程度显著低于对照组细胞 (P< 0. 01)。 结论 丙泊酚具有抑 制肠癌细胞增殖和侵袭活性。 丙泊酚通过减弱 EZH2 对 SFRP1 表观沉默作用, 诱导其表达上调, 从而减低 Wnt 信号通路活性。

关键词: 丙泊酚, EZH2, SFRP1, Wnt 信号通路, 结直肠癌, 增殖, 转移, 侵袭

Abstract: Objective To investigate the effect of propofol on the proliferation and invasion of colorectal cancer cells via regulating SFRP1-Wnt signaling pathway. Methods Colorectal cancer cell lines SW620 and HT29 were used, cells were divided into 2 groups: the control group and the propofol group. CCK-8 was used to detect cell proliferation activity. The wound-healing assay and transwell assay were used to analyze cell migration and invasion ability. Reverse transcription real-time fluorescence quantitative PCR was used to detect the expression levels of Wnt signaling pathway related genes. The chromatin immunoprecipitation assay was used to analyze the enrichment of EZH2 and H3K27Me3 in the SFRP1 promoter region. Results The proliferation activity of cells in the propofol group was significantly lower than that of the control group after propofol treatment for 24 hours (P< 0. 01). The wound-healing assay showed that the cell migration in the propofol group was significantly lower than that in the control group (P < 0. 01). The tranwell assay showed that the number of transmembrane cells in the propofol group was significantly less than that in the control group (P < 0. 01 ). qPCR resutls showed that E-cadherin was significantly up-regulated ( P < 0. 01), while N-cadherin was down-regulated (P < 0. 01) in the propofol group when compared with the control group. Wnt signaling pathway target genes β-catenin, c-Myc and Cyclin D1 was significantly down-regulated when compared with the control group (P < 0. 01). In addition, SFRP1, the upstream regulator of Wnt, was also significantly down-regulated in the propofol group ( P < 0. 01). Chromatin immunoprecipitation revealed that the enrichment of EZH2 and H3K27Me3 in the SFRP1 promoter was significantly lower in the propofol group than in the control group (P< 0. 01). Conclusion Propofol can inhibit the proliferation and invasion of colorectal cancer cells. Propofol attenuates the apparent silencing effect of EZH2 on SFRP1 and induces its upregulation, thereby reducing the activity of Wnt signaling pathway.

Key words: propofol, EZH2, SFRP1, Wnt signaling pathway, colorectal cancer, proliferation, metastasis, invasion

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