欧前胡素调节ThPOK表达对胃癌细胞恶性生物学行为的影响
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篇名: 欧前胡素调节ThPOK表达对胃癌细胞恶性生物学行为的影响
TITLE: Effects of imperatorin on malignant biological behavior of gastric cancer cells by regulating ThPOK expression
摘要: 目的 探究欧前胡素(IMP-SD)调节含锌指和BTB结构域7B(ThPOK)表达对胃癌(GC)细胞恶性生物学行为的影响。方法取人GC细胞MKN-7,分为对照组(不给药),IMP-SD低、中、高浓度组(分别给予40、80、160μmol/L的IMP-SD),si-ThPOK和si-NC组[先给予160μmol/L的IMP-SD,再分别转染ThPOK小分子干扰RNA(si-ThPOK)及其阴性对照(si-NC)])。经相应处理后,检测各组细胞的克隆形成、迁移、侵袭能力及凋亡情况,自然杀伤(NK)细胞的杀伤作用,T细胞的分布情况,以及ThPOK、程序性死亡受体1(PD-1)及其配体(PD-L1)的表达情况。结果与对照组比较,IMP-SD各浓度组的细胞克隆数、迁移细胞数、侵袭细胞数和PD-1、PD-L1蛋白的表达均显著降低或下调,细胞凋亡率、NK细胞的杀伤活性、CD4+T细胞比例、CD4+T细胞比例与CD8+T细胞比例的比值(CD4+T/CD8+T)、ThPOK蛋白的表达均显著升高或上调,且有浓度依赖性(P<0.05);与IMP-SD高浓度组和si-NC组比较,si-ThPOK组的细胞克隆数、迁移细胞数、侵袭细胞数和PD-L1、PD-1蛋白的表达均显著升高或上调,细胞凋亡率、NK细胞的杀伤活性、CD4+T细胞比例、CD4+T/CD8+T、ThPOK蛋白的表达均显著降低或下调(P<0.05)。结论IMP-SD可能通过促进ThPOK蛋白的表达,从而减弱GC细胞的克隆形成、迁移、侵袭能力,促进其凋亡,抑制其免疫逃逸。
ABSTRACT: OBJECTIVE To investigate the effects of imperatorin (IMP-SD) on malignant biological behavior of gastric cancer (GC) cells by regulating zinc finger and BTB domain 7B (ThPOK). METHODS Human GC cells MKN-7 were used as the research object and then divided into control group (no treatment), IMP-SD low-, medium- and high-concentration groups (40, 80 and 160 μmol/L IMP-SD), si-ThPOK and si-NC group [treated with 160 μmol/L IMP-SD and then transfected with ThPOK small interfering RNA (si-ThPOK) or its negative control (si-NC)]. After treatment, cell clone formation, migration and invasion abilities and apoptosis of MKN-7 cells were detected; the killing activity of NK cells, T cells classification, the protein expressions of ThPOK, programmed death-1 (PD-1) and programmed death-ligand 1 (PD-L1) were all determined. RESULTS Compared with the control group, the number of cell clones, migration number, invasion number, and the protein expressions of PD-1 and PD-L1 were decreased or down-regulated significantly in IMP-SD groups, while the cell apoptotic rate, NK cell killing activity, CD4+ T proportion, the ratio of CD4+ T proportion and CD8+ T proportion (CD4+ T/CD8+ T), and the protein expression of ThPOK were increased or up-regulated significantly, in a concentration-dependent manner (P<0.05). Compared with IMP-SD high-concentration group and si-NC group, the number of cell clones, migration number, invasion number, and the protein expressions of PD-1 and PD-L1 were increased or up-regulated significantly in si-ThPOK group, while the cell apoptotic rate, NK cell killing activity, CD4+ T proportion, CD4+ T/CD8+ T, and the protein expression of ThPOK were decreased or down-regulated significantly (P<0.05). CONCLUSIONS IMP-SD may reduce the clonal formation, migration and invasion abilities of GC cells, promote their apoptosis and inhibit their immune escape by promoting ThPOK expression.
期刊: 2025年第36卷第02期
作者: 陈兰;夏伶俐;陈颖;张刚;文峰
AUTHORS: CHEN Lan,XIA Lingli,CHEN Ying,ZHANG Gang,WEN Feng
关键字: 欧前胡素;ThPOK;胃癌细胞;免疫逃逸;恶性生物学行为
KEYWORDS: imperatorin; ThPOK; gastric cancer cells; immune escape; malignant biological behavior
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