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南京医科大学学报(自然科学版) 第44卷第8期
·1062 · Journal of Nanjing Medical University(Natural Sciences) 2024年8月
·基础研究·
ME3对肝癌细胞增殖、迁移和侵袭的影响及机制研究
何俊波 ,袁一铭 ,罗振国 ,马冰沁 ,钱唯韵 ,魏 岚 ,陆一峰 2*
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苏州大学附属第三医院全科医学科,介入放射科,江苏 常州 213003
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[摘 要] 目的:分析苹果酸酶3(malic enzyme 3,ME3)在肝细胞肝癌(hepatocellular carcinoma,HCC)组织以及HCC细胞系中
的表达水平,并研究ME3对HCC细胞增殖、迁移和侵袭等方面的影响及其可能机制。方法:使用癌症基因组图谱(The Cancer
Genome Atlas,TCGA)数据库分析 ME3 在 HCC 组织中的表达;使用 RT⁃qPCR 和 Western blot 技术检测 HCC 细胞系中 ME3 的
mRNA以及蛋白的表达水平;在下调或者上调HCC细胞系中ME3后,借助CCK⁃8、平板克隆法、Transwell、侵袭实验研究ME3在
肝癌细胞增殖、迁移和侵袭方面的作用;运用Western blot检测PI3K/AKT信号通路相关蛋白的表达情况。结果:与癌旁正常组
织和正常肝细胞相比,ME3在人类HCC组织和HCC细胞系中表达显著升高,降低ME3表达能减弱HCC细胞的增殖、迁移及侵
袭,过表达ME3则会导致相反结果;此外,ME3可以激活PI3K/AKT信号通路。结论:ME3在HCC组织中呈高表达,促进HCC细
胞增殖、迁移以及侵袭,并可能通过启动PI3K/AKT信号通路在HCC中发挥其促癌基因的作用。
[关键词] ME3;肝细胞肝癌;增殖;迁移;侵袭;PI3K/AKT信号通路
[中图分类号] R735.7 [文献标志码] A [文章编号] 1007⁃4368(2024)08⁃1062⁃07
doi:10.7655/NYDXBNSN231100
Effects and mechanisms of ME3 on cell proliferation,migration and invasion of hepatocellular
carcinoma
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HE Junbo ,YUAN Yiming ,LUO Zhenguo ,MA Bingqin ,QIAN Weiyun ,WEI Lan ,LU Yifeng 2*
1 Department of General Medicine,Department of Interventional Radiology,the Third Affiliated Hospital of Soochow
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University,Changzhou 213003,China
[Abstract] Objective:To analyze the expression of malic enzyme 3(ME3)in hepatocellular carcinoma(HCC)tissues and celllines,
and explore the effects of ME3 on the proliferation,migration,and invasion of HCC cells,as well as its underlying mechanism.
Methods:The Cancer Genome Atlas(TCGA)database was used to study the expression of ME3 in HCC tissues. RT ⁃ qPCR and
Western blot were performed to detect the mRNA and protein expression levels of ME3 in HCC cells. After knocking down or over
expressing ME3 in HCC cell lines,the effects of ME3 on the proliferation,migration and invasion of HCC cells were detected by CCK⁃8
assay,colony formation assay,transwell assay,and invasion assay. Western blot was used to detect the expression of proteins related to
the PI3K/AKT signaling pathway. Results:Compared with adjacent normal tissues and normal liver celline,ME3 was significantly
up⁃regulated in HCC tissues and cell lines. Knockdown of ME3 markedly inhibited the ability of proliferation,migration and invasion of
HCC cells,while overexpression of ME3 resulted in the opposite effects. Furthermore,we found that the activity of PI3K/AKT signaling
pathway was significantly activated by ME3. Conclusion:ME3 is highly expressed in HCC tissues,promoting the proliferation,
migration and invasion of HCC cells,and may function as an oncogene in HCC by activating the PI3K/AKT signaling pathway.
[Key words] ME3;hepatocellular carcinoma;proliferation;migration;invasion;PI3K/AKT signaling pathway
[J Nanjing Med Univ,2024,44(08):1062⁃1068]
肝细胞肝癌(hepatocellular carcinoma,HCC)是
[基金项目] 国家自然科学基金(81672402);常州市应用基
全球范围内最常见的恶性肿瘤之一,在中国所有肿
础研究(CJ20230057)
瘤病例中,HCC的发病率位列第4,但是死亡人数却
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通信作者(Corresponding author),E⁃mail:luyifeng19810104@
[1]
163.com 高居第 3 位 。HCC 生长速度快,患者早期常无特