Wang Haocheng, Luo Qingya, Kang Jianyi, Wei Qinglv, Yang Yu, Yang Dan, Liu Xiaoyi, Liu Tao, Yi Ping
Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Department of Pathology, The First Affiliated Hospital of Army Medical University, Chongqing, China.
Front Oncol. 2021 Mar 19;11:650383. doi: 10.3389/fonc.2021.650383. eCollection 2021.
N6-methyladenosine (mA) is the most common post-transcriptional modification of RNA in eukaryotes, which has been demonstrated to play important roles in various cancers. YTHDF1 acts as a crucial mA "reader" and regulates the fate of mA modified mRNA. However, its role in cervical cancer remains unknown. In this study, we showed that YTHDF1 was highly expressed in cervical cancer, and was closely associated with the poor prognosis of cervical cancer patients. YTHDF1 knockdown suppressed the growth, migration and invasion, and induced apoptosis of cervical cancer cells. Moreover, YTHDF1 knockdown inhibited tumorigenesis of cervical cancer cells . Through combined on-line data analysis of RIP-seq, meRIP-seq and Ribo-seq upon YTHDF1 knockdown, RANBP2 was identified as the key target of YTHDF1 in cervical cancer cells. YTHDF1 regulated RANBP2 translation in an mA-dependent manner without effect on its mRNA expression. RANBP2 potentiated the growth, migration and invasion of cervical cancer cells. Our study demonstrated the oncogenic role of YTHDF1 in cervical cancer by regulating RANBP2 expression and YTHDF1 represents a potential target for cervical cancer therapy.
N6-甲基腺苷(mA)是真核生物中RNA最常见的转录后修饰,已证明其在各种癌症中发挥重要作用。YTHDF1作为一种关键的mA“读取器”,调节mA修饰mRNA的命运。然而,其在宫颈癌中的作用尚不清楚。在本研究中,我们发现YTHDF1在宫颈癌中高表达,且与宫颈癌患者的不良预后密切相关。YTHDF1敲低抑制了宫颈癌细胞的生长、迁移和侵袭,并诱导其凋亡。此外,YTHDF1敲低抑制了宫颈癌细胞的肿瘤发生。通过对YTHDF1敲低后的RIP-seq、meRIP-seq和Ribo-seq进行联合在线数据分析,确定RANBP2是宫颈癌细胞中YTHDF1的关键靶标。YTHDF1以mA依赖的方式调节RANBP2的翻译,而不影响其mRNA表达。RANBP2增强了宫颈癌细胞的生长、迁移和侵袭。我们的研究通过调节RANBP2表达证明了YTHDF1在宫颈癌中的致癌作用,YTHDF1代表了宫颈癌治疗的一个潜在靶点。