miRNA-124-3p通過靶向STAT3抑制鼻咽癌細胞生長和轉(zhuǎn)移
發(fā)布時間:2019-05-17 12:05
【摘要】:目的:探討miR-124-3p在鼻咽癌中的表達及其對鼻咽癌細胞的影響及其機制。方法:收集鼻咽癌組織標本90例和慢性鼻咽炎癥組織標本85例,運用qRT-PCR方法檢測組織標本和CNE1、CNE2、SUNE1、HONE1、5-8F、6-10B及C666-1鼻咽癌細胞株和永生化鼻咽上皮細胞NP69中miR-124-3p的表達,脂質(zhì)體介導(dǎo)的轉(zhuǎn)染方法下調(diào)高表達miRNA-124-3p的鼻咽癌細胞株CNE2,同時上調(diào)低表達miRNA-124-3p的鼻咽癌細胞株C666-1。CCK8法、流式細胞技術(shù)、細胞劃痕實驗、Transwell實驗和Boyden小室檢測細胞增殖、凋亡、遷移及侵襲的變化;生物信息學靶基因預(yù)測miRNA-124-3的靶基因并運用熒光素酶報告實驗驗證,Western Blotting檢測細胞中STAT3及其下游的p-STAT3、CCND2和MMP2蛋白表達水平。結(jié)果:鼻咽癌組織中miRNA-124-3p表達水平與慢性鼻咽炎癥組織相比明顯下調(diào)(P0.001);miRNA-124-3p的表達水平與腫瘤大小及范圍、區(qū)域淋巴結(jié)受累情況及臨床分期顯著相關(guān)(均P0.001);7種鼻咽癌細胞與NP69細胞相比較,miRNA-124-3p的表達水平均顯著低于NP69(均P0.05)。miRNA-124-3p過表達后C666-1細胞增殖、凋亡、遷移和侵襲均顯著低于空白對照組和mimics NC組(均P0.05);miRNA-124-3p抑制后CNE2細胞的增殖、凋亡、遷移和侵襲均顯著高于inhibitor NC組和空白對照組(均P0.05)。轉(zhuǎn)染miRNA-124-3p后C666-1細胞STAT3、p-STAT3、CCND2和MMP2的表達顯著降低,抑制CNE2細胞的miRNA-124-3p表達后STAT3、p-STAT3、CCND2和MMP2的表達顯著降低。結(jié)論:miR-124-3p可通過下調(diào)靶基因STAT3的表達,進而影響其下游的p-STAT3、CCND2和MMP2信號通路,從而促進鼻咽癌細胞凋亡,抑制鼻咽癌細胞的增殖、遷移及侵襲。
[Abstract]:Objective: to investigate the expression of miR-124-3p in nasopharyngeal carcinoma (NPC) and its effect on nasopharyngeal carcinoma (NPC) cells and its mechanism. Methods: 90 cases of nasopharyngeal carcinoma and 85 cases of chronic nasopharyngitis were collected. Tissue specimens and CNE1,CNE2,SUNE1,HONE1,5-8F, were detected by qRT-PCR. The expression of miR-124-3p in 6 / 10 B and C66 鈮,
本文編號:2479074
[Abstract]:Objective: to investigate the expression of miR-124-3p in nasopharyngeal carcinoma (NPC) and its effect on nasopharyngeal carcinoma (NPC) cells and its mechanism. Methods: 90 cases of nasopharyngeal carcinoma and 85 cases of chronic nasopharyngitis were collected. Tissue specimens and CNE1,CNE2,SUNE1,HONE1,5-8F, were detected by qRT-PCR. The expression of miR-124-3p in 6 / 10 B and C66 鈮,
本文編號:2479074
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