摘要
目的探讨垂体肿瘤转化基因1(PTTG1)在miR-362-3p作用下对口腔鳞状细胞癌(OSCC)细胞Cal-27、HN-30侵袭以及增殖能力的影响。方法生物信息学在线数据库查询PTTG1在头颈部鳞状细胞癌(HNSCC)中的表达。蛋白质印迹法(Western blot)实验检测PTTG1在Cal-27、HN-30以及HOK细胞系中的表达。划痕愈合实验、Transwell侵袭实验及5-乙炔基-2’脱氧尿嘧啶核苷(EdU)细胞增殖实验检测PTTG1对Cal-27、HN-30细胞迁移、侵袭、增殖的影响。生物信息学在线数据库预测PTTG1的上游miRNA,双荧光素酶实验检测结合情况,实时荧光定量聚合酶链反应(qRT-PCR)检测该miRNA在组织中的表达。结果ENCORI数据库结果显示PTTG1在OSCC组织中表达上调;Western blot实验显示Cal-27、HN-30细胞中PTTG1表达量较HOK细胞中高。转染Si-PTTG1质粒的Cal-27、HN-30细胞的迁移能力、侵袭能力和细胞增殖能力均较对照组降低(P<0.05)。通过网站预测出PTTG1的上游miRNA为miR-362-3p,双荧光素酶实验检测出PTTG1与miR-362-3p存在结合位点;qRT-PCR检测结果显示miR-362-3p在OSCC肿瘤组织中相对于正常组织表达下调(P<0.05);并且敲低miR-362-3p的表达后能够促进敲低PTTG1后的Cal-27、HN-30侵袭和增殖。结论miR-362-3p可通过靶向PTTG1抑制Cal-27、HN-30细胞侵袭、增殖。
Objective This study aimed to explore the effect of pituitary tumor-transforming gene 1(PTTG1) on the invasion and proliferation of oral squamous cell carcinoma(OSCC) cell lines under the action of miR-362-3p.Methods The bioinformatics online database was used to query the expression of PTTG1 in head and neck squamous cell carcinoma(HNSCC).The expression of PTTG1 in the Cal-27,HN-30,and HOK cell lines was detected by Western blot.A wound-healing assay was used to determine the effect of PTTG1 on the migration ability of the OSCC cells.The Transwell assay was used to examine the changes in cell-invasion ability.5-ethynyl-2'-deoxyuridine(EdU) cell-proliferation assay was used to detect changes in cell-proliferation ability.Bioinformatics approach predicted the upstream miRNA of PTTG1.The targeting relationship between miR-362-3p and PTTG1 was examined by the dual luciferase assay,and quantitative real-time polymerase chain reaction(qRT-PCR) was used to determine the expression of miRNA in OSCC tissues.Results The ENCORI database showed that PTTG1 expression was up-regulated in OSCC tissues.Western blot confirmed that PTTG1 expression was up-regulated in Cal-27 and HN-30 cells than HOK cells.PTTG1 knockout can inhibit the migration,invasion,and proliferation of Cal-27 and HN-30 cells(P<0.05).Bioinformatics prediction websites predicted that the upstream miRNA of PTTG1 was miR-362-3p,and PTTG1 can bind to miR-362-3p.Results of qRT-PCR showed that miR-362-3p expression was downregulated in OSCC tissues compared with normal tissue(P<0.05).Transwell and EdU experiments confirmed that miR-362-3p knockdown can promote the invasion and proliferation of Cal-27 and HN-30 after PTTG1 knockdown.Conclusion miR-362-3p can inhibit the invasion and proliferation of Cal-27 and HN-30 cells by targeting PTTG1.
作者
丁啸
陈嘉雯
曲鹏宇
孙晨雨
李洪利
胡温庭
范欣
Ding Xiao;Chen Jiawen;Qu Pengyu;Sun Chenyu;Li Hongli;Hu Wenting;Fan Xin(Dept.of Stomatology,Affiliated Hospital of Weifang Medical University,Weifang 261000,China;School of Stomatology,Weifang Medical University,Weifang 261053,China;Medical Research Center,Weifang Medical University,Weifang 261053,China)
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2024年第1期46-55,共10页
West China Journal of Stomatology
基金
山东省自然科学基金项目(ZR202110190030)
潍坊医学院附属医院种子基金项目(2021wffyzzjj06)
潍坊市科技发展计划项目(2022YX029)。
关键词
口腔鳞状细胞癌
垂体肿瘤转化基因1
微小RNA
侵袭
增殖
oral squamous cell carcinoma
pituitary tumor-transforming gene 1
microRNA
invasion
proliferation
