中国临床解剖学杂志 ›› 2023, Vol. 41 ›› Issue (5): 543-549.doi: 10.13418/j.issn.1001-165x.2023.5.08

• 实验研究 • 上一篇    下一篇

LncRNA NEAT1对垂体瘤细胞系GH3侵袭和迁移的作用机制研究

郑锴1,    罗秀玲2,    张玮豪1,    刘宇利1,    李玉明1,    廖尚高3   

  1. 贵州医科大学    1.附属医院神经外科,  2.附属医院头颈肿瘤科,  3.药学院,  贵阳    550004
  • 收稿日期:2022-04-22 出版日期:2023-09-25 发布日期:2023-10-16
  • 作者简介:郑锴(1972-),男,医学博士,副主任医师,研究方向:神经创伤与肿瘤,E-mail:ZK1972Z@163.com
  • 基金资助:
    贵州省高层次创新型人才资助项目(黔科合平台人才[2020]6011)

Mechanism of LncRNA NEAT1 on invasion and migration of pituitary tumor cells

Zheng Kai 1, Luo Xiuling 2, Zhang Weihao 1, Liu Yuli 1, Li Yuming 1, Liao Shanggao3   

  1. 1. Department of Neurosurgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, China; 2. Department of Head and Neck Oncology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou province, China; 3. School of Pharmacy, Guizhou Medical University, Guiyang 550004, Guizhou province, China 
  • Received:2022-04-22 Online:2023-09-25 Published:2023-10-16

摘要: 目的    探讨lncRNA NEAT1对垂体瘤细胞侵袭、迁移的作用及机制。  方法    qRT-PCR检测lncRNA NEAT1、miR-134和ITGB1表达;Transwell检测侵袭和迁移;双荧光素酶报告基因实验检测miR-134与lncRNA NEAT1、ITGB1的调控关系;Western blot检测ITGB1/FAK/PI3K通路相关蛋白表达。  结果    敲低lncRNA NEAT1抑制GH3细胞侵袭和迁移(P<0.05);抑制miR-134可逆转下调lncRNA NEAT1对GH3细胞侵袭、迁移的抑制作用(P<0.05)。miR-134与lncRNA NEAT1和ITGB1存在负靶向调控关系(P<0.05)。上调miR-134抑制GH3细胞侵袭和迁移,抑制ITGB1/FAK/PI3K通路激活(P<0.05);ITGB1过表达削弱上调miR-134对GH3细胞的影响(P<0.05)。  结论    下调lncRNA NEAT1靶向miR-134可能通过抑制ITGB1/FAK/PI3K通路激活抑制垂体瘤细胞侵袭、迁移。

关键词: lncRNA NEAT1; ,  , miR-134; ,  , 垂体瘤; ,  , 侵袭; ,  , 迁移

Abstract: Objective    To explore the effect and potential mechanism of lncRNA NEAT1 on the invasion and migration of pituitary tumor cells.    Methods    The expressions of lncRNA NEAT1, miR-134, and ITGB1 were detected by qRT-PCR. Transwell was used to detect the invasion and migration. The regulatory relationship between miR-134 and lncRNA NEAT1 and ITGB1 was detected by a double luciferase reporter gene experiment. The expression of ITGB1/FAK/PI3K pathway-related proteins was detected by Western blot.    Results    Knockdown of lncRNA NEAT1 inhibited the invasion and migration of GH3 cells (P<0.05); inhibition of miR-134 could reverse the inhibitory effect of down-regulated lncRNA NEAT1 on the invasion and migration of GH3 cells (P<0.05). miR-134 had a negative targeted regulation relationship with lncRNAs NEAT1 and ITGB1 (P<0.05). Up-regulation of miR-134 inhibited the invasion and migration of GH3 cells and inhibited the activation of the ITGB1/FAK/PI3K pathway (P<0.05). ITGB1 overexpression attenuated the effect of up-regulated miR-134 on GH3 cells (P<0.05).   Conclusions   Down-regulation of lncRNA NEAT1 targeting miR-134 may inhibit the invasion and migration of pituitary tumor cells by inhibiting the activation of the ITGB1/FAK/PI3K pathway.

Key words: lncRNA NEAT1,  miR-134,  Pituitary tumor,  Invasion,  Migration

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