天津医药 ›› 2025, Vol. 53 ›› Issue (2): 113-117.doi: 10.11958/20241497

• 细胞与分子生物学 •    下一篇

间充质干细胞外泌体对食管癌ECA109细胞生物学行为的影响

马莉莉1(), 李子沐2, 王亮1, 许彭3, 李秀梅3,()   

  1. 1 新疆医科大学第五附属医院检验科(邮编830011)
    2 成都大学临床医学2020级
    3 新疆医科大学基础医学院
  • 收稿日期:2024-10-14 修回日期:2024-12-04 出版日期:2025-02-15 发布日期:2025-02-26
  • 通讯作者: E-mail:641251840@qq.com
  • 作者简介:马莉莉(1984),女,副主任技师,主要从事肿瘤发病分子机制方面研究。E-mail:venuslilyma@163.com
  • 基金资助:
    新疆维吾尔自治区自然科学基金项目(2021D01C290)

Effects of mesenchymal stem cell exosomes on biological behavior of esophageal carcinoma ECA109 cells

MA Lili1(), LI Zimu2, WANG Liang1, XU Peng3, LI Xiumei3,()   

  1. 1 Department of Clinical Laboratory, the Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
    2 Grade 2020 of Clinical Medicine, Chengdu University
    3 the School of Basic Medicine of Xinjiang Medical University
  • Received:2024-10-14 Revised:2024-12-04 Published:2025-02-15 Online:2025-02-26
  • Contact: E-mail: 641251840@qq.com

摘要:

目的 探讨间充质干细胞外泌体(MSC-Exos)对食管癌ECA109细胞增殖、凋亡及迁移能力的影响。方法 培养人脐带间充质干细胞,提取并分离外泌体,采用透射电镜、纳米粒径测定及表征蛋白(TSG101、CD63)进行鉴定。实验设MSC-Exo组(MSC-Exos与食管癌ECA109细胞共培养)和空白对照组(仅培养食管癌ECA109细胞),分别培养0、24、48 h,采用CCK-8增殖、划痕实验分别检测各组食管癌EAC109细胞增殖、迁移能力;培养48 h后,采用流式细胞仪检测细胞凋亡及细胞周期变化,Western blot检测磷酸化磷酸肌醇3-激酶(p-PI3K)、兔源磷酸化蛋白激酶B(p-Akt)、β-catenin蛋白的表达。结果 经鉴定,所得MSC-Exos符合要求标准。细胞培养0 h时,2组细胞增殖能力和迁移愈合率差异均无统计学意义(P>0.05);培养24 h时,MSC-Exo组细胞增殖能力低于空白对照组(P<0.05);培养48 h时,MSC-Exo组细胞增殖能力和迁移愈合率均低于空白对照组(P<0.05)。MSC-Exo组细胞凋亡率高于空白对照组,G2+S期细胞比例低于空白对照组(P<0.05)。MSC-Exo组p-PI3K、p-Akt和β-catenin蛋白表达水平均低于空白对照组(P<0.05)。结论 MSC-Exos能够抑制食管癌细胞增殖、迁移,促进细胞凋亡,其对食管癌细胞的抑癌作用可能与抑制PI3K、Akt蛋白的活化、下调β-catenin蛋白表达有关。

关键词: 间质干细胞, 外泌体, 食管肿瘤, 细胞增殖, 细胞运动, 细胞凋亡

Abstract:

Objective To explore the effects of exosomes of mesenchymal stem cells (MSC-Exos) on the proliferation, apoptosis, migration and invasion of esophageal cancer ECA109 cells. Methods Human umbilical cord mesenchymal stem cells were cultured, exosomes were extracted and isolated, and identified by transmission electron microscopy. The nanoparticle size determination and protein characterization (TSG101, CD63) were measured by transmission electron microscope. There were the MSC-Exo group (MSC-Exos co-cultured with esophageal cancer ECA109 cells) and the blank control group (only esophageal cancer ECA109 cells), and cells were cultured for 0, 24 and 48 h, respectively. CCK-8 proliferation test and scratch test were used to detect the proliferation and migration ability of esophageal cancer EAC109 cells in each group, respectively. After 48 h of culture, cell apoptosis and cell cycle changes were detected by flow cytometry. The protein expression levels of phosphoinositol 3-kinase phosphorylation (p-PI3K), rabbit phosphorylated protein kinase B phosphorylation (p-Akt) and β-catenin were detected by Western blot assay. Results After identification, the obtained MSC-Exos meeted the required standard. Transmission electron microscopy, particle size measurement and marker protein results confirmed that the extracted exosomes of mesenchymal stem cells meeted the identification criteria. At 0 h of cell culture, there were no significant differences in cell proliferation and migration healing rate between the two groups (P>0.05). After 24 h culture, the cell proliferation ability was lower in the MSC-Exo group than that of the blank control group (P<0.05). After 48 h culture, the cell proliferation and migration healing rate were lower in the MSC-Exo group than those of the blank control group (P<0.05). The apoptosis rate of the MSC-Exo group was higher than that of the blank control group, and the proportion of G2+S phase cells was lower than that of blank control group (P<0.05). The expression levels of p-PI3K, p-Akt and β-catenin protein were significantly lower in the MSC-Exo group than those in the blank control group (P<0.05). Conclusion MSC-Exos can inhibit the proliferation and migration of esophageal cancer cells and promote cell apoptosis. The inhibitory effect of MSC-Exos on esophageal cancer cells may be related to inhibiting the activation of PI3K and Akt protein and the down-regulating expression of β-catenin protein.

Key words: mesenchymal stem cells, exosomes, esophageal neoplasms, cell proliferation, cell movement, apoptosis

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