新疆南部维吾尔族 HPV16 阳性宫颈鳞癌microRNA 筛选及功能分析

目的：初步探讨新疆南部维吾尔族HPV16阳性宫颈鳞癌差异表达的microRNA(miRNA)，预测并分析靶基 因功能。方法：采用miRNA微阵列芯片技术对5例HPV16阳性的新疆南部维吾尔族宫颈鳞癌进行miRNA初步研究， 挑选出差异表达的miRNA，并利用实时定量RT-PCR进行初步验证，利用targetscan，miRwalk，miRanda及pictar 4种软 件预测其靶基因。结果：新疆南部维吾尔族HPV16阳性宫颈鳞癌差异表达基因18个，对差异表达显著的miRNA-138 和miRNA-720进行初步验证并预测其靶基因，预测miRNA-138靶基因为EZH2，LYPLA1，ARHGEF3，CLNS1A， EIF4EBP1，GNAI2，LIMK1，RHOC，ROCK2，SLC20A1，TERT，H2AFX；miRNA-720靶基因为EZH2，AGAP2， SPOCK2，FGF14，HNRNPA2B1，QKI，FOXG1，ACVR1B，DNMT3A，EPHB2，LATS2，KRAS，CCND2，NBN， ENAM，AMELX，PRNP，CALB1，两者共同的靶基因是EZH2。结论：miRNA-138，miRNA-720在新疆南部维吾尔族 HPV16阳性宫颈鳞癌组织中表达均下调，两者共同的靶基因是EZH2，可能与宫颈癌的浸润和转移有关。

Screening and functional analysis of microRNA expression in HPV16-positive squamous carcinoma of the cervix in the Uygur of southern Xinjiang

Objective: To explore the differential expression of microRNA (miRNA) in HPV16-positive squamous carcinoma of the cervix in the Uygur of southern Xinjiang and to predict the target genes of the miRNAs. Methods: Samples of HPV16-positive squamous carcinoma of the cervix from 5 Uygurs were collected for miRNA microarray assay. The differentially expressed miRNAs were selected for further verification by real-time quantitative RT-PCR. The software, including targetscan, miRwalk, miRanda and pictar, were used to predict the target genes of the verified miRNAs. Results: Eighteen differentially expressed miRNAs were identified by miRNA microarray assay. The significantly differentially expressed miRNA-138 and miRNA-720 were verified by real-time quantitative RT-PCR. According to the prediction, the target genes for miRNA-138 were EZH2, LYPLA1, ARHGEF3, CLNS1A, EIF4EBP1, GNAI2, LIMK1, RHOC, ROCK2, SLC20A1, TERT, and H2AFX, while for miRNA-720 were EZH2, AGAP2, SPOCK2, FGF14, HNRNPA2B1, QKI, FOXG1, ACVR1B, DNMT3A, EPHB2, LATS2, KRAS, CCND2, NBN, ENAM, AMELX, PRNP, and CALB1. Conclusion: miR-138 and miR-720 are the down-regulated target miRNAs in HPV16-positive squamous carcinoma of the cervix in the Uygur of southern Xinjiang. The common target gene for miR-138 and miR-720 is EZH2, which might be related to cervical squamous carcinoma invasion and metastasis.