医学分子生物学杂志 ›› 2023, Vol. 20 ›› Issue (1): 26-33.doi: 10.3870/j.issn.1672-8009.2023.01.005

• 论著 • 上一篇    下一篇

lncRNA PSMA3-AS1 靶向 miR-3619-5p 调控宫颈癌 SiHa 细胞增殖、迁移及侵袭的分子机制研究

  

  1. 1 安康职业技术学院护理学院 陕西省安康市, 725000  2 西安医学院第二附属医院妇科 西安市, 710038  3 西安医学院第二附属医院产一科 西安市, 710038
  • 出版日期:2023-01-31 发布日期:2023-03-24

lncRNA PSMA3-AS1 Regulate the Proliferation, Migration and Invasion of Cervical Cancer Cells by Targeting miR-3619-5p

  1. 1 Nursing College of Ankang Vocational and Technical College, Ankang, Shaanxi, 725000, China  2 Department of Gynecology, the Second Affiliated Hospital of Xi ’ an Medical College, Xi ’ an, 710038, China  3 Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Xi’an Medical College, Xi’an, 710038, China
  • Online:2023-01-31 Published:2023-03-24

摘要: 目的 探讨 lncRNA PSMA3-AS1 调控宫颈癌细胞增殖、 迁移及侵袭的分子机制。 方法 收集 2020 年 3 月至 2021 年 6 月西安医学院第二附属医院收治的 42 例宫颈癌患者的癌组织及其癌旁组织标本, 采用 qRT-PCR 法检测宫颈癌组织、 癌旁组织、 人宫颈上皮永生化细胞 H8、 与人宫颈癌细胞系 SiHa、 HeLa、 Caski 中 lncRNA PSMA3-AS1、 miR-3619-5p 的表达量; 以 SiHa 细胞为研究对象, 分组为: si-NC 组、 si-lncRNA PSMA3-AS1 组、 miR-NC 组、 miR-3619-5p 组、 anti-miR-NC + si-lncRNA PSMA3-AS1 组、 anti-miR-3619-5p + si-lncRNA PSMA3-AS1 组; MTT 法与 Transwells 实验分别检测每组 SiHa 细胞的增殖活力、 迁移及侵袭能力; 双 荧光素酶报告实验检测 miR-3619-5p 过表达对野生型载体 lncRNA PSMA3-AS1-WT、 突变型载体 lncRNA PSMA3-AS1-MUT 荧光素酶活性的影响; Western 印迹检测 MMP2、 MMP9 蛋白表达量。 结果 宫颈癌组织中 lncRNA PSMA3-AS1 的表达量比癌旁组织增加 ( P < 0. 01), miR-3619-5p 的表达量比癌旁组织减少 ( P < 0. 01); 与 H8 细胞比较, SiHa、 HeLa、 Caski 细胞中 lncRNA PSMA3-AS1 的表达量升高 (P< 0. 01), miR-3619-5p 的表达量降低 (P< 0. 01); 与 si-NC 组比较, si-lncRNA PSMA3-AS1 组细胞活力和 MMP2、 MMP9 蛋 白水平降低 (P< 0. 05), 迁移及侵袭细胞数减少 (P< 0. 05); 与 miR-NC 组比较, miR-3619-5p 组细胞活力 和 MMP2、 MMP9 蛋白水平降低 (P< 0. 01), 迁移及侵袭细胞数减少 (P< 0. 05); miR-3619-5p 过表达可抑 制 lncRNA PSMA3-AS1-WT 的荧光素酶活性 (P< 0. 01), 而未能影响 lncRNA PSMA3-AS1-MUT 的荧光素酶活 性; 与 anti-miR-NC + si-lncRNA PSMA3-AS1 组比较, anti-miR-3619-5p + si-lncRNA PSMA3-AS1 组细胞活力和 MMP2、 MMP9 蛋白水平升高 (P< 0. 01), 迁移及侵袭细胞数增多 (P< 0. 01)。 结论 干扰 lncRNA PSMA3- AS1 表达可通过促进 miR-3619-5p 而降低宫颈癌细胞增殖、 迁移及侵袭能力。 

关键词: 宫颈癌, 增殖, 迁移, 侵袭, lncRNA PSMA3-AS1, miR-3619-5p 

Abstract: Objective To explore the molecular mechanism of lncRNA PSMA3-AS1 on regulating the proliferation, migration and invasion of cervical cancer cells. Methods Collect cancer tissue and paracancerous tissue specimens of 42 patients with cervical cancer admitted to the Second Affiliated Hospital of Xi’an Medical University from March 2020 to June 2021. The qRT-PCR method was used to detect the expression levels of lncRNA PSMA3-AS1, miR-3619-5p in cervical cancer tissues, adjacent tissues, human cervical epithelial immortalized cells H8, and human cervical cancer cell lines SiHa, HeLa, and Cashi. Taking SiHa cells as the research object, they were randomly grouped into 6 groups: si-NC group, si-lncRNA PSMA3-AS1 group, miR-NC group, miR-3619-5p group, anti-miR-NC + si-lncRNA PSMA3-AS1 group, anti-miR-3619-5p + si-lncRNA PSMA3-AS1 group. The proliferation, migration and invasion abilities of SiHa cells in each group were assayed by MTT assay and transwell assay respectively. The dual luciferase reporter assay was used to determine the effect of miR-3619-5p overexpression on the luciferase activity of wild-type vector lncRNA PSMA3-AS1-WT and mutant vector lncRNA PSMA3-AS1-MUT. Western blotting was used to detect the protein expression levels of MMP2 and MMP9. Results The expression level of lncRNA PSMA3-AS1 in cervical cancer tissues was higher than that in the adjacent tissues (P< 0. 01), and the expression level of miR-3619-5p was lower than that in the adjacent tissues (P< 0. 01). Compared with the H8 cells, the expression level of lncRNA PSMA3-AS1 in SiHa, HeLa, and Caski cells was increased (P < 0. 01), while the expression level of miR-3619-5p was decreased (P < 0. 01). Compared with the si-NC group, the cell viability, and the protein expression levels of MMP2, MMP9 in the si-lncRNA PSMA3-AS1 group were decreased (P< 0. 05), and the numbers of migrated and invaded cells were decreased (P < 0. 05). Compared with the miR-NC group, the cell viability and the protein expression levels of MMP2, MMP9 in the miR-3619-5p group were decreased (P< 0. 01), and the numbers of migrated and invaded cells were decreased (P < 0. 01). Overexpression of miR-3619-5p could inhibit the luciferase activity of lncRNA PSMA3-AS1-WT (P< 0. 01), but failed to affect the luciferase activity of lncRNA PSMA3-AS1-MUT. Compared with the anti-miR-NC + si-lncRNA PSMA3-AS1 group, the cell viability, and the protein expression levels of MMP2, MMP9 in the anti-miR-3619-5p + si-lncRNA PSMA3-AS1 group were increased (P< 0. 01), and the numbers of migrated and invaded cells were increased (P< 0. 01). Conclusion Interfering with the expression of lncRNA PSMA3-AS1 could reduce the proliferation, migration and invasion of cervical cancer cells by targeting miR-3619-5p.

Key words: cervical cancer, proliferation, migration, invasion, lncRNA PSMA3-AS1, miR-3619-5p

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