METTL14 promotes prostate tumorigenesis by inhibiting THBS1 via an m6A-YTHDF2-dependent mechanism.

METTL14 promotes prostate tumorigenesis by inhibiting THBS1 via an m6A-YTHDF2-dependent mechanism.
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METTL14 通过 m6A-YTHDF2 依赖性机制抑制 THBS1 促进前列腺肿瘤发生

DOI:
10.1038/s41420-022-00939-0
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发表时间:
2022-03-30
影响因子:
7
通讯作者:
Yang R
Yang R
中科院分区:
医学2区
文献类型:
--
作者:
Wang Y;Chen J;Gao WQ;Yang R

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N6-甲基腺嘌呤(m6 A)是最主要的RNA修饰,已被证明与许多类型的癌症有关。然而,对它在前列腺癌(PCa)中的作用的了解在很大程度上是未知的。在这里,我们报告了前列腺癌患者中与预后不良相关的胃L14的上调。在功能上,敲低胃L14在体外和体内均抑制肿瘤增殖。在机械上,RNA-seq和MeRIP-seq分析将THBS 1鉴定为PCa中胃L14的下游靶标。胃癌L14以m6 A依赖的方式下调THBS 1的表达,这导致YTHDF 2的募集以识别和降解血栓反应蛋白1(THBS 1)mRNA。因此,我们的研究结果表明,胃L14通过m6 A-YTHDF 2依赖性方式抑制THBS 1表达,从而发挥癌基因的作用。胃癌L14可能是一个潜在的预后指标和治疗靶点。
N6-methyladenine (m6A) is the most predominant RNA modification, which has been shown to be related to many types of cancers. However, understanding of its role in prostate cancer (PCa) is largely unknown. Here, we report an upregulation of METTL14 that was correlated with poor prognosis in PCa patients. Functionally, knocking down METTL14 inhibited tumor proliferation both in vitro and in vivo. Mechanically, RNA-seq and MeRIP-seq analyses identified THBS1 as the downstream target of METTL14 in PCa. METTL14 downregulated THBS1 expression in an m6A-dependent manner, which resulted in the recruitment of YTHDF2 to recognize and degrade Thrombospondin 1 (THBS1) mRNA. Thus, our findings revealed that METTL14 acted as an oncogene by inhibiting THBS1 expression via an m6A-YTHDF2-dependent manner. METTL14 could be a potential prognosis marker and a therapeutic target.
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