八月札乙醇提取物对人肝癌细胞抑制增殖、促进凋亡及转录组学分析
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1.广西中医药大学药学院药理学教研室;2.广西中医药大学附属瑞康医学院

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广西壮族自治区中医药管理局课题(编号: GXZYA20220096)广西中医药大学校级科研项目(编号:2023MS016)


Transcriptome analysis of ethanol extract of Akebia trifoliate (Thunb.) Koidz on cell proliferation inhibitory functions and promote apoptosis in human liver cells
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1.GUANGXI UNIVERSITY OF CHINESE MEDICINE;2.Ruikang Hospital Affiliated to Guangxi University of Traditional Chinese Medicine

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    摘要:

    目的 探讨八月札乙醇提取物(EEATK)对人肝癌细胞增殖、凋亡的影响及可能作用机制。方法 体外培养人肝癌细胞(Hep3B和Huh-7),设置空白对照组、索拉菲尼(Sorafenib,5uM) 组及EEATK组(0.10 mg/mL、0.15 mg/mL、0.20 mg/mL、0.3 mg/mL),分别给予对应药物干预,采用 CCK-8 法检测不同分组的药物干预对肝癌细胞活力的影响 ,筛选最佳作用浓度用于后续实验;采用EdU染色法、克隆形成实验、Annexin V-FITC/PI双染法观察EEATK(0.15mg/mL)对人肝癌细胞(Hep3B和Huh-7)增殖和凋亡的影响;转录组测序分析EEATK调控Hep3B 细胞增殖、凋亡的差异表达基因;使用基因本体论(gene ontology,GO)和京都基因与基因组百科全书(Kyoto Encyclopedia of Genes and Genomes, KEGG)分析差异表达基因的功能及富集通路;并联合CTD(Comparative Toxicogenomics Database)数据库分析与肝癌增殖、凋亡相关的关键基因表达情况。结果 与空白对照组相比,随着EEATK浓度增加,能够显著抑制Hep3B和Huh-7细胞的活力(P <0. 01);0.15mg/mL的EEATK作用肝癌细胞后,EdU阳性细胞率、细胞克隆形成率均显著降低(均 P <0. 01),同时细胞凋亡率显著增加(P <0.01);Hep3B 细胞转录组测序结果分析显示,与对照组相比,EEATK引起1577个基因表达发生显著改变(P <0. 01),其中表达上调差异基因 942个,表达下调差异基因 635个。GO功能富集分析发现差异表达基因主要富集于胆固醇合成、炎症、细胞外基质中显著富集。KEGG通路分析提示EEATK可能主要通过转化生长因子-β(transforming growth factor-β,TGF-β)及核因子κB(nuclear factor kappa-B,NF-κB)信号发挥抑癌作用。差异表达基因富集分析显示EEATK可引起BIRC5(Survivin,生存素)、细胞周期蛋白依赖性激酶1(cyclin-dependent kinases 1,CDK1)等细胞凋亡相关基因的表达显著下调 (P <0. 01),周期蛋白抑制因子 1A( cyclin dependent kinase inhibitor 1A,CDKN1A)、脯氨酸羟化酶3(egl?9 family hypoxia inducible factor 3, EGLN3)的表达显著上调(P <0. 01);同时,可引起FAM83D (Family with sequence similarity 83D,FAM83D)、Ki-67等细胞增殖相关基因显著下调 (P <0. 01), MYC、叉头框蛋白1(forkhead box C1,FoxC1)等表达显著上调 (P <0. 01)。结论 EEATK可抑制细胞增殖并诱导凋亡,可能通过调节TFG-β及NF-κB信号通路信号中相关基因的表达发挥抗肝癌作用。

    Abstract:

    Objective To investigate the effects and molecular mechanism of EEATK on proliferation, apoptosis of human hepatocellular carcinoma Hep3B cells and Huh-7 cells and to explore its underlying mechanism . Methods Human hepatoma cells Hep3B cells and Huh-7 cells cultured in vitro, blank control group, Sorafenib group (5uM), EEATK groups (0.10 mg/mL、0.15 mg/mL、0.20 mg/mL、0.3 mg/mL)were set and given corresponding drug intervention, respectively. CCK-8 assay was used to measure the viability of different interventions on the proliferation of Hep3B cells and Huh-7 cells, to screen the optimal action concentration for subsequent experiments. Hep3B cells and Huh-7 cells were divided into the blank control group and EEATK group(0.15mg/mL) treated with for 24 hours,EdU staining assay, colony formation assay were used to explore the effect of EEATK on the proliferation , the apoptosis rate,were detected by Annexin V-FITC/PI double staining assay.The transcriptome sequencing(RNA-seq)technology was used to analyze differentially expressed genes (DEGs) related to cell proliferation, apoptosis on Hep3B cells in blank control group and EEATK group(0.15mg/mL)of Hep3B cells, DEGs were analyzed for Gene Ontology(GO) function and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment. CTD (Comparative Toxicogenomics Database) was used to validate the expression of key proteins related to cell proliferation, apoptosis. Results Compared with the blank control group, different concentration of EEATK could significantly inhibit the activity of Hep3B and Huh-7 cells (P <0. 01) ; After treated with 0.15 mg/mL EEATK, the EdU positive cell rate and cell clone formation rate were significantly decreased (all P <0. 01), at the same time ,the apoptotic rates of EEATK group were significantly increased(P < 0.01). Compared with the blank control group, The transcriptome sequencing of Hep3B cells showed that EEATK induced significant changes in the expression of 1577 DEGs (P <0. 01) , of which 942 were up-regulated and 635 were down-regulated. GO functional enrichment analysis revealed that DEGs were mainly enriched in cholesterol synthesis, inflammation, and extracellular matrix. KEGG pathway analysis showed that EEATK may mainly pass through TFG- β Signal pathways and NF-κB signaling pathway plays an anti-tumor role.DEGs enrichment analysis showed that EEATK can significantly downregulate the expression of apoptosis related genes such as BIRC5 and CDK1 (P<0.01), the expression of CDKN1A and EGLN3 were significantly upregulated (P<0.01), At the same time, EEATK can cause significantly downregulation of cell proliferation related genes such as FAM83D and Ki-67 (P<0.01), mean while, the expression of MYC and FoxC1 were significantly upregulated (P<0. 01).

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  • 收稿日期:2024-04-02
  • 最后修改日期:2024-05-26
  • 录用日期:2024-08-26
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