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第41卷第2期                           南京医科大学学报(自然科学版)
                  2021年2月                   Journal of Nanjing Medical University(Natural Sciences)     ·187 ·


               ·基础研究·

                YY1 通过下调长链非编码 RNA SOX2OT 抑制胰腺癌细胞的迁

                移和侵袭



                汪冬艳 ,张静静       1*
                      1,2
                南京医科大学第一附属医院普外科,江苏                南京   210029;南京中医药大学附属中西医结合医院,江苏省中西医结合医院普
                1                                             2
                外科,江苏 南京       210028



               [摘   要] 目的:研究转录因子YY1对胰腺癌细胞迁移和侵袭的影响和分子机制。方法:使用定量RT⁃PCR和Western blot检
                测YY1和SOX2OT的表达。通过划痕实验和Transwell 侵袭实验,研究YY1在胰腺癌细胞迁移和侵袭中的作用。在YY1过表
                达或YY1敲低的胰腺癌细胞中,通过SOX2OT过表达或RNA干扰进行功能回复实验。结果:发现YY1过表达抑制BXPC⁃3和
                PANC⁃1细胞中的SOX2OT表达,相反,YY1干扰促进SOX2OT的表达。此外,YY1过表达抑制BXPC⁃3细胞在体外的迁移和侵
                袭,相反YY1干扰促进细胞的迁移和侵袭。在YY1过表达的BXPC⁃3细胞中过表达SOX2OT,或者在YY1敲低的细胞中干扰
                SOX2OT的表达,可以逆转YY对细胞迁移和侵袭的作用。结论:YY1通过下调SOX2OT表达抑制胰腺癌细胞的迁移和侵袭。
               [关键词] YY1;胰腺癌;SOX2OT;迁移;侵袭
               [中图分类号] R735.9                    [文献标志码] A                      [文章编号] 1007⁃4368(2021)02⁃187⁃06
                doi:10.7655/NYDXBNS20210206


                YY1 suppresses migration and invasion of pancreatic ductal adenocarcinoma cells by
                downregulating lncRNA SOX2OT

                              1,2
                WANG Dongyan ,ZHANG Jingjing  1*
                1 Department of General Surgery,the First Affiliated Hospital of Nanjing Medical University,Nanjing 210029;
                Department of General Surgery,Affiliated Hospital of Integrated Traditional Chinese and Western Medicine,Nanjing
                2
                University of Chinese Medicine,Nanjing 210028,China



               [Abstract] Objective:This study aims to observe the effects and mechanisms of transcription factor YY1 on the migration and
                invasion of pancreatic cancer cells. Methods:In this study,YY1 and SOX2OT expression were detected by using quantitative RT⁃PCR
                and Western blot. The role of YY1 in the migration and invasion of pancreatic cancer cells was studied by cell wound healing assays
                and transwell cell invasion assays. The functional recovery experiments were performed by overexpression or RNA interference of
                SOX2OT in YY1 overexpression or YY1 knockdown pancreatic cancer cells. Results:It was found that YY1 overexpression decreased,
                while YY1 knockdown increased SOX2OT expression in BXPC⁃3 and PANC⁃1 cells. Furthermore,YY1 overexpression suppressed,

                whereas YY1 knockdown enhanced,the migration and invasion properties of BXPC⁃3 cells in vitro. Overexpression of SOX2OT in YY1
                overexpressed BXPC⁃3 cells or RNA interference of SOX2OT in YY1 knockdown cells can partly reverse the effect of YY on cell
                migration and invasion. Conclusion:The present study suggested that YY1 suppresses migration and invasion of pancreatic cancer
                cells in a SOX2OT⁃dependent mechanism.
               [Key words] YY1;pancreatic cancer;SOX2OT;migration;invasion
                                                                              [J Nanjing Med Univ,2021,41(02):187⁃192]


                                                                      转录因子YY1是锌指蛋白家族中的一员,参与
                                                                  了许多生物学和生理过程,包括胚胎发生、细胞增
               [基金项目] 国家自然科学基金(81572337)
                                                                  殖、DNA复制和分化等         [1-3] 。本课题组先前研究表明
                ∗
                通信作者(Corresponding author),E⁃mail:zhangjingjing@njmu.
                edu.cn                                            YY1 在胰腺癌中具有抑癌作用             [4-5] 。染色质免疫共
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